CN210105852U - Sleeve assembly, telescopic arm and heading machine - Google Patents
Sleeve assembly, telescopic arm and heading machine Download PDFInfo
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- CN210105852U CN210105852U CN201920994638.XU CN201920994638U CN210105852U CN 210105852 U CN210105852 U CN 210105852U CN 201920994638 U CN201920994638 U CN 201920994638U CN 210105852 U CN210105852 U CN 210105852U
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Abstract
The utility model provides a sleeve subassembly, flexible arm and entry driving machine, the sleeve subassembly includes: the first sleeve is provided with a first positioning hole on the peripheral side surface; the guide key is arranged on the inner surface of the first sleeve, and a second positioning hole is formed in the guide key; and the pin shaft penetrates through the first positioning hole and the second positioning hole. The structure can solve the problems of abnormal assembly of the structure, movement interference of the sleeve component and the like caused by positioning deviation of the guide key through the pin shaft, the first positioning hole and the second positioning hole. On the other hand, the technical problems that the parallelism of the guide key is poor and the symmetry does not meet the requirements can be solved by the pin shaft, the first positioning hole and the second positioning hole, so that the guide key positioning structure in the sleeve assembly is optimized, the matching precision of the sleeve assembly is improved, the assembling difficulty of the sleeve assembly is reduced, and the technical effects of the working stability and the reliability of a product are improved.
Description
Technical Field
The utility model relates to an engineering machine tool technical field particularly, relates to a sleeve subassembly, flexible arm and entry driving machine.
Background
In the existing sleeve assembly of the heading machine, a guide key is directly welded on a telescopic protection cylinder, a worker determines the welding position of the guide key on the telescopic protection cylinder in a welding process according to a line drawing mode, a measurement mode and other modes, parallelism deviation and symmetry deviation can occur between the welded guide key and a preset welding position due to instability and inaccuracy of manual positioning, and therefore the problem of interference of a sliding structure during assembly with the guide key is caused, normal assembly of the sliding structure is influenced, and the problems of abrasion and breakage of the guide key can occur even if the sliding structure is assembled to the guide key forcibly.
According to the feedback of ore side service personnel, the guide key cracks, the guide block can fall off, the underground mine cannot be welded and repaired, the whole telescopic part is replaced, and the influence on production and the large amount of lost money are achieved. According to the feedback of on-site investigation, the guide key interferes with the guide block in the assembling process, and the guide block is repaired in a grinding mode on site, so that the assembling precision of the guide key is insufficient.
Therefore, how to design a sleeve assembly with simple structure and reliable assembly precision becomes a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.
To this end, an aspect of the present invention is to provide a sleeve assembly.
Another aspect of the present invention is to provide a telescopic boom.
Another aspect of the present invention is to provide a heading machine.
In view of this, according to the utility model discloses a first aspect provides a sleeve subassembly for the entry driving machine, the sleeve subassembly includes: the first sleeve is provided with a first positioning hole on the peripheral side surface; the guide key is arranged on the inner surface of the first sleeve, and a second positioning hole is formed in the guide key; and the pin shaft penetrates through the first positioning hole and the second positioning hole.
According to the utility model provides a sleeve component is provided with first sleeve in the sleeve component, and first sleeve is sleeve component's outside sleeve structure for bear and fix a position other work structures on the sleeve component. The guide key is a positioning guide structure on the sleeve component and is used for positioning and limiting displacement tracks of other structures on the sleeve component. Wherein, through set up first locating hole on telescopic week side to correspond on the guide key and set up the second locating hole, make the guide key can be through wearing to locate first locating hole and the downthehole round pin axle location of second locating hole on first sleeve, thereby pinpoint the guide key on first sleeve, can solve the unable normal assembly of structure and sleeve subassembly motion interference scheduling problem that arouses because of guide key positioning deviation through round pin axle, first locating hole and second locating hole on the one hand. On the other hand, the technical problems that the parallelism of the guide key is poor and the symmetry does not meet the requirements can be solved by the pin shaft, the first positioning hole and the second positioning hole, so that the guide key positioning structure in the sleeve assembly is optimized, the matching precision of the sleeve assembly is improved, the assembling difficulty of the sleeve assembly is reduced, and the technical effects of the working stability and the reliability of a product are improved.
Specifically, in the existing sleeve assembly of the heading machine, the guide key is directly welded on the telescopic protection cylinder, a worker determines the welding position of the guide key on the telescopic protection cylinder in a welding process according to a line drawing mode, a measurement mode and other modes, due to instability and inaccuracy of manual positioning, parallelism deviation and symmetry deviation can occur between the welded guide key and a preset welding position, and therefore the problem of interference of the sliding structure during assembly with the guide key is caused, normal assembly of the sliding structure is affected, and even if the sliding structure is assembled to the guide key forcibly, the problems of abrasion and breakage of the guide key can occur. To above-mentioned technical problem, this application sets up first locating hole through setting up first locating hole on first sleeve, sets up the second locating hole on the guide key, makes the guide key can realize just fixing a position through the round pin axle of wearing to locate in first locating hole and the second locating hole, thereby guarantee that the guide key can be accurate install to the predetermined mounted position on the first sleeve on, thereby avoid interfering because of the guide key that the guide key positioning deviation arouses, the technical problem that the assembly degree of difficulty is big, and then fundamentally has solved the technical problem among the above-mentioned prior art.
Additionally, the utility model provides an above-mentioned technical scheme's sleeve subassembly can also have following additional technical characterstic:
in the above technical solution, preferably, the sleeve assembly further includes: the second sleeve penetrates through the first sleeve; the guide block is connected with the second sleeve, a guide groove is formed in the guide block, and the guide key is connected with the guide block in a sliding mode.
In this technical scheme, the sleeve subassembly still includes the second sleeve, and the second sleeve is the extending structure in the sleeve subassembly. The second sleeve penetrates through the interior of the first sleeve and is connected with the guide key in a matched mode through the guide groove of the guide block arranged on the second sleeve. In the working process, the second sleeve slides along the extending direction of the guide key under the limitation of the guide groove, so that the limitation of the motion track of the second sleeve relative to the first sleeve is realized through the matching of the key and the groove, and the technical problems of the motion track deviation of the second sleeve and the mutual interference of the first sleeve and the second sleeve are solved. And then realized optimizing sleeve subassembly location structure, promoted sleeve subassembly job stabilization nature and the technical effect of reliability.
In any of the above solutions, preferably, the extending direction of the guide key is parallel to the axis of the first sleeve, and the second sleeve slides in the first sleeve along the axis of the first sleeve.
In this technical scheme, the extending direction through injecing the guide key is parallel with first telescopic axis, has specifically injecing the direction of motion of second sleeve in first sleeve, and in the course of the work, the second sleeve is at the inside first telescopic axis motion of following of first sleeve to constitute extending structure through first sleeve and second sleeve, so that the working structure on the second sleeve can stretch out and draw back relative to first sleeve, and then realize optimizing sleeve subassembly structure, promote product application scope's technological effect.
In any of the above solutions, preferably, the sleeve assembly further includes: and the welding holes are arranged on the peripheral side surface of the first sleeve so as to weld the guide key on the first sleeve through the welding holes.
In the technical scheme, the circumferential side surface of the first sleeve is also provided with a welding hole, and the position of the welding hole corresponds to the position of the guide key. During the assembly process, the pin shaft is inserted into the first positioning hole and the second positioning hole to realize the initial positioning of the guide key, then solder is filled into the welding hole, and the guide key is welded on the first sleeve through the welding hole to complete the connection between the guide key and the first sleeve. Through setting up the welding hole and can making the user carry out the welding process from first telescopic outside in welding process, reduced the welding degree of difficulty on the one hand, on the other hand can avoid producing between solder and the slider and interfere, and then has realized optimizing sleeve subassembly structure, reduces the sleeve subassembly assembly degree of difficulty, promotes sleeve subassembly operational reliability's technological effect.
In any of the above solutions, preferably, the sleeve assembly further includes: the mounting hole is arranged on the guide block; the connecting piece is arranged in the mounting hole in a penetrating mode and connected with the second sleeve.
In this technical scheme, be provided with the mounting hole on the guide block, the mounting hole is seted up in the both sides of guide way, in the assembling process, with the telescopic preset mounted position of mounting hole alignment second, insert the connecting piece in the mounting hole and fix the guide block in the second sleeve through the connecting piece after that to make the guide block can drive the second sleeve and slide along the extending direction of guide key, and then realize optimizing sleeve subassembly location structure, promote sleeve subassembly motion accuracy and motion reliability's technological effect.
In any of the above technical solutions, preferably, the second positioning hole is a threaded hole, and the pin shaft is a threaded pin shaft.
In this technical scheme, through setting up the second locating hole into the screw hole to set up the round pin axle into threaded pin axle, make the sleeve subassembly accessible in the assembling process screw in threaded pin axle threaded hole in order to accomplish the location of guide key on first sleeve and connect. Simultaneously, at the income of selection of threaded pin axle, the guide key is progressively close to first telescopic inner wall to effectively reduce the clearance between first sleeve and the guide key, solved the technical problem that has the weld gap on the current sleeve subassembly between guide key and the flexible protection section of thick bamboo, effectively promoted the location accuracy and the reliability of guide key. And then realized optimizing guide key location structure, got rid of the welding clearance, promoted product reliability's technological effect.
In any of the above technical solutions, preferably, the guide key is provided with at least two second positioning holes, and the at least two second positioning holes are uniformly distributed along the extending direction of the guide key; the axes of the at least two second positioning holes are in the same plane, and the guide keys are uniformly divided on the plane.
In the technical scheme, the number and the arrangement mode of the second positioning holes are specifically limited. The number of the second positioning holes is at least two, and the positioning accuracy and reliability of the guide key can be guaranteed by arranging the at least two second positioning holes, so that the guide key is prevented from rotating relative to the second positioning holes. The at least two second positioning holes are uniformly distributed along the extending direction of the guide key, so that the second positioning holes on the guide key are uniformly stressed, the positioning reliability is improved, and the possibility of damage to the positioning holes is reduced.
Furthermore, the axes of at least two second positioning holes are arranged on the plane for uniformly separating the guide keys, so that the guide keys are of a symmetrical structure taking the second positioning holes as centers, and the symmetry degree of the guide keys relative to the two sides of the first positioning holes and the second positioning holes is ensured, thereby solving the technical problem of poor symmetry precision of the guide keys. And then realize optimizing guide key location structure, promote guide key positioning reliability, improve guide key positioning accuracy, promote the technological effect of product reliability.
In any of the above technical solutions, preferably, there are at least two guide keys, and at least two guide keys are uniformly distributed along the circumferential direction of the first sleeve.
In this technical scheme, be provided with two guide key on the first sleeve at least, and two at least guide key evenly distributed on the internal surface of first sleeve. The movement track of the second sleeve is limited by arranging at least two guide keys, so that the movement precision of the second sleeve can be effectively improved, the second sleeve is prevented from deflecting in the telescopic process, and the working precision of the sleeve assembly is improved. Wherein, through with two at least guide keys evenly distributed on first sleeve, make two at least guide key's atress relatively more even, avoid producing because of certain guide key atress is too big to break and crooked to promote guide key's structural stability. And then realize optimizing the guide key mode of setting, promote second sleeve location accuracy and reliability, promote the technological effect of guide key structural stability.
The utility model discloses the second aspect provides a flexible arm, flexible arm contain the sleeve subassembly of any one of above-mentioned arbitrary technical scheme, and this flexible arm has the whole beneficial effects of the sleeve subassembly that any one of above-mentioned technical scheme provided.
The utility model discloses the third aspect provides a heading machine, heading machine contain the flexible arm of any one of above-mentioned arbitrary technical scheme, and this heading machine has the whole beneficial effect of the flexible arm that any one of above-mentioned technical scheme provided.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a schematic structural view of a sleeve assembly provided according to an embodiment of the present invention;
fig. 2 illustrates another schematic structural view of a sleeve assembly provided in accordance with an embodiment of the present invention;
fig. 3 illustrates yet another schematic structural view of a sleeve assembly provided in accordance with an embodiment of the present invention;
fig. 4 shows a schematic structural diagram of a guide block provided according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram illustrating a guide key according to an embodiment of the present invention;
fig. 6 shows a schematic structural diagram of a pin according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
1 sleeve component, 10 first sleeve, 102 first positioning hole, 104 welding hole, 20 guide key, 202 second positioning hole, 30 pin shaft, 40 second sleeve, 50 guide block, 502 guide groove and 504 mounting hole.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A sleeve assembly 1, a telescopic arm and a heading machine according to some embodiments of the present invention will now be described with reference to figures 1 to 6.
In view of this, according to the embodiment of the present invention, as shown in fig. 1, there is provided a sleeve assembly 1 for a heading machine, the sleeve assembly 1 including: the first sleeve 10, the peripheral side of the first sleeve 10 is provided with a first positioning hole 102; a guide key 20 disposed on the inner surface of the first sleeve 10, the guide key 20 having a second positioning hole 202; the pin shaft 30 is inserted into the first positioning hole 102 and the second positioning hole 202.
According to the utility model provides a sleeve subassembly 1 is provided with first sleeve 10 in the sleeve subassembly 1, and first sleeve 10 is sleeve subassembly 1's outside sleeve structure for bear and fix a position other work structures on the sleeve subassembly 1. The guide key 20 is a positioning guide structure on the sleeve assembly 1 for positioning and limiting the displacement track of other structures on the sleeve assembly 1. The first positioning hole 102 is formed in the peripheral side face of the sleeve, the second positioning hole 202 is correspondingly formed in the guide key 20, the guide key 20 can be positioned on the first sleeve 10 through the pin shaft 30 penetrating through the first positioning hole 102 and the second positioning hole 202, and therefore the guide key 20 is accurately positioned on the first sleeve 10. On the other hand, the pin shaft 30, the first positioning hole 102 and the second positioning hole 202 can also solve the technical problems that the parallelism of the guide key 20 is poor and the symmetry does not meet the requirements, so that the positioning structure of the guide key 20 in the sleeve assembly 1 is optimized, the matching precision of the sleeve assembly 1 is improved, the assembly difficulty of the sleeve assembly 1 is reduced, and the technical effects of the working stability and the reliability of a product are improved.
Specifically, in the existing sleeve assembly of the heading machine, the guide key is directly welded on the telescopic protection cylinder, a worker determines the welding position of the guide key on the telescopic protection cylinder in a welding process according to a line drawing mode, a measurement mode and other modes, due to instability and inaccuracy of manual positioning, parallelism deviation and symmetry deviation can occur between the welded guide key and a preset welding position, and therefore the problem of interference of the sliding structure during assembly with the guide key is caused, normal assembly of the sliding structure is affected, and even if the sliding structure is assembled to the guide key forcibly, the problems of abrasion and breakage of the guide key can occur. In order to solve the technical problems, according to the present application, the first positioning hole 102 is formed in the first sleeve 10, and the second positioning hole 202 is formed in the guide key 20, so that the guide key 20 can be initially positioned by the pin shaft 30 penetrating through the first positioning hole 102 and the second positioning hole 202, and thus the guide key 20 can be accurately installed at a predetermined installation position on the first sleeve 10, and therefore, the technical problems of interference of the guide key 20 and high assembly difficulty caused by the positioning deviation of the guide key 20 are avoided, and the technical problems in the prior art are fundamentally solved.
In an embodiment of the present invention, preferably, as shown in fig. 3, the sleeve assembly 1 further includes: the second sleeve 40 is arranged in the first sleeve 10 in a penetrating way; the guide block 50 is connected with the second sleeve 40, a guide groove 502 is arranged on the guide block 50, and the guide key 20 is connected with the guide block 50 in a sliding mode.
In this embodiment, the sleeve assembly 1 further comprises a second sleeve 40, the second sleeve 40 being a telescopic structure within the sleeve assembly 1. The second sleeve 40 is inserted into the first sleeve 10 and is connected to the guide key 20 through the guide groove 502 of the guide block 50 disposed on the second sleeve 40. In the working process, the second sleeve 40 slides along the extending direction of the guide key 20 under the limitation of the guide groove 502, so that the limitation of the motion track of the second sleeve 40 relative to the first sleeve 10 is realized through the key and groove matching, and the technical problems of the deviation of the motion track of the second sleeve 40 and the mutual interference of the first sleeve 10 and the second sleeve 40 are solved. And then realized optimizing sleeve subassembly 1 location structure, promoted sleeve subassembly 1 job stabilization nature and the technical effect of reliability.
In an embodiment of the present invention, preferably, as shown in fig. 2, the extending direction of the guide key 20 is parallel to the axis of the first sleeve 10, and the second sleeve 40 slides in the first sleeve 10 along the axis of the first sleeve 10.
In this embodiment, the extending direction of the guide key 20 is parallel to the axis of the first sleeve 10, and specifically, the moving direction of the second sleeve 40 in the first sleeve 10 is defined, during the operation, the second sleeve 40 moves inside the first sleeve 10 along the axis of the first sleeve 10, so that the first sleeve 10 and the second sleeve 40 form a telescopic structure, and the operation structure on the second sleeve 40 can be telescopic relative to the first sleeve 10, thereby realizing the technical effects of optimizing the structure of the sleeve assembly 1 and improving the application range of the product.
In an embodiment of the present invention, preferably, as shown in fig. 1, the sleeve assembly 1 further includes: and a welding hole 104 provided on a circumferential side surface of the first sleeve 10 to weld the guide key 20 to the first sleeve 10 through the welding hole 104.
In this embodiment, the circumferential side surface of the first sleeve 10 is further provided with a welding hole 104, and the position of the welding hole 104 corresponds to the position of the guide key 20. During the assembly process, the pin shaft 30 is inserted into the first positioning hole 102 and the second positioning hole 202 to achieve the initial positioning of the guide key 20, then the solder is filled into the soldering hole 104, and the guide key 20 is soldered on the first sleeve 10 through the soldering hole 104, so as to complete the connection between the guide key 20 and the first sleeve 10. Through setting up welding hole 104, can make the user carry out the welding process from the outside of first sleeve 10 in welding process, reduced the welding degree of difficulty on the one hand, on the other hand can avoid producing the interference between solder and the slider, and then realized optimizing sleeve subassembly 1 structure, reduce sleeve subassembly 1 assembly degree of difficulty, promote sleeve subassembly 1 operational reliability's technological effect.
In an embodiment of the present invention, preferably, as shown in fig. 4, the sleeve assembly 1 further includes: a mounting hole 504 provided on the guide block 50; and the connecting piece is arranged in the mounting hole 504 in a penetrating way and is connected with the second sleeve 40.
In this embodiment, the guide block 50 is provided with the mounting hole 504, the mounting hole 504 is opened in the both sides of guide way 502, in the assembling process, aim at the preset mounting position of second sleeve 40 with the mounting hole 504, insert the connecting piece in the mounting hole 504 and fix the guide block 50 in the second sleeve 40 through the connecting piece afterwards, thereby make the guide block 50 can drive the second sleeve 40 and slide along the extending direction of guide key 20, and then realize optimizing sleeve subassembly 1 location structure, promote sleeve subassembly 1 motion accuracy and motion reliability's technological effect.
In an embodiment of the present invention, preferably, as shown in fig. 6, the second positioning hole 202 is a threaded hole, and the pin 30 is a threaded pin.
In this embodiment, by providing the second positioning hole 202 as a threaded hole and the pin 30 as a threaded pin, the sleeve assembly 1 can be assembled by screwing the threaded pin into the threaded hole to complete the positioning connection of the guide key 20 on the first sleeve 10. Meanwhile, in the selecting process of the threaded pin shaft, the guide key 20 is gradually close to the inner wall of the first sleeve 10, so that the gap between the first sleeve 10 and the guide key 20 is effectively reduced, the technical problem that a welding gap exists between the guide key 20 and the telescopic protection cylinder on the existing sleeve component 1 is solved, and the positioning accuracy and the reliability of the guide key 20 are effectively improved. And then realized optimizing guide key 20 location structure, got rid of the welding clearance, promoted product reliability's technological effect.
In an embodiment of the present invention, preferably, as shown in fig. 5, at least two second positioning holes 202 are disposed on the guide key 20, and the at least two second positioning holes 202 are uniformly distributed along the extending direction of the guide key 20; the axes of at least two second positioning holes 202 are in the same plane, and the guide key 20 is evenly divided by the plane.
In this embodiment, the number and arrangement of the second positioning holes 202 are specifically defined. At least two second positioning holes 202 are provided, and the positioning of the guide key 20 can be ensured to be accurate and reliable by providing at least two second positioning holes 202, so that the guide key 20 is prevented from rotating relative to the second positioning holes 202. By uniformly distributing at least two second positioning holes 202 along the extending direction of the guide key 20, the stress on each second positioning hole 202 on the guide key 20 is uniform, the positioning reliability is improved, and the possibility of damage to the positioning holes is reduced.
Further, by arranging the axes of at least two second positioning holes 202 on the plane uniformly separating the guide key 20, the guide key 20 is made to be a symmetrical structure with the second positioning hole 202 as the center, and the symmetry degree of the guide key 20 relative to the two sides of the first positioning hole 102 and the second positioning hole 202 is ensured, thereby solving the technical problem of poor symmetry precision of the guide key 20. And then realize optimizing guide key 20 location structure, promote guide key 20 positioning reliability, improve guide key 20 positioning accuracy, promote the technical effect of product reliability.
In an embodiment of the present invention, preferably, as shown in fig. 2, the number of the guide keys 20 is at least two, and the at least two guide keys 20 are uniformly distributed along the circumference of the first sleeve 10.
In this embodiment, at least two guide keys 20 are provided on the first sleeve 10, and the at least two guide keys 20 are evenly distributed on the inner surface of the first sleeve 10. The movement track of the second sleeve 40 is limited by the at least two guide keys 20, so that the movement precision of the second sleeve 40 can be effectively improved, the second sleeve 40 is prevented from deflecting in the telescopic process, and the working precision of the sleeve assembly 1 is improved. Wherein, through evenly distributed at least two direction keys 20 on first sleeve 10, make at least two direction keys 20 atress comparatively even, avoid producing because of certain direction key 20 atress too big and break and crooked to promote the structural stability of direction key 20. And then realize optimizing the mode that guide key 20 set up, promote second sleeve 40 location accuracy and reliability, promote the technical effect of guide key 20 structural stability.
The utility model discloses a second embodiment provides a flexible arm, and flexible arm contains the sleeve subassembly 1 of any one of above-mentioned embodiment, and this flexible arm has the whole beneficial effects of the sleeve subassembly 1 that any one of above-mentioned embodiment provided.
The utility model discloses the third embodiment provides a heading machine, heading machine contain the flexible arm of any one of above-mentioned arbitrary embodiment, and this heading machine has the whole beneficial effect of the flexible arm that any one of above-mentioned embodiment provided.
In a specific embodiment of the present invention, the assembly process of the sleeve assembly 1 is as follows:
1) placing the guide key 20 inside the first sleeve 10 and aligning the second positioning hole 202 with the first positioning hole 102;
2) the pin shaft 30 is inserted into the first positioning hole 102, and then the pin shaft 30 is screwed in, so that the pin shaft 30 is simultaneously inserted into the first positioning hole 102 and the second positioning hole 202;
3) solder is injected into the welding hole 104, and the pin shaft 30 is screwed out after the solder is solidified;
4) aligning the mounting hole 504 of the guide block 50 with a predetermined mounting position of the second sleeve 40, and thereafter transferring the connection member to complete the connection of the guide block 50 and the second sleeve 40;
5) the second sleeve 40 is inserted into the first sleeve 10, and the guide key 20 is snapped into the guide groove 502 during the insertion process to complete the assembly of the first sleeve 10 and the second sleeve 40.
In the present invention, the terms "mounting", "connecting", "fixing" and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A sleeve assembly for a heading machine, the sleeve assembly comprising:
the first sleeve is provided with a first positioning hole on the peripheral side surface;
the guide key is arranged on the inner surface of the first sleeve, and a second positioning hole is formed in the guide key;
and the pin shaft penetrates through the first positioning hole and the second positioning hole.
2. The sleeve assembly of claim 1, further comprising:
the second sleeve penetrates through the first sleeve;
the guide block is connected with the second sleeve, a guide groove is formed in the guide block, and the guide key is connected with the guide block in a sliding mode.
3. The sleeve assembly of claim 2 wherein said guide key extends parallel to the axis of said first sleeve, said second sleeve sliding within said first sleeve in the direction of the axis of said first sleeve.
4. The sleeve assembly of claim 1, further comprising:
and the welding hole is arranged on the peripheral side surface of the first sleeve, so that the guide key is welded on the first sleeve through the welding hole.
5. The sleeve assembly of claim 2, further comprising:
the mounting hole is arranged on the guide block;
and the connecting piece is arranged in the mounting hole in a penetrating manner and is connected with the second sleeve.
6. The sleeve assembly of any one of claims 1 to 5 wherein said second locating hole is a threaded hole and said pin is a threaded pin.
7. The sleeve assembly as claimed in any one of claims 1 to 5, wherein at least two of said second positioning holes are provided on said guide key, and are uniformly distributed along the extending direction of said guide key;
the axes of at least two second positioning holes are in the same plane, and the guide keys are uniformly divided by the plane.
8. The sleeve assembly of any one of claims 1 to 5, wherein said guide keys are at least two, at least two of said guide keys being evenly distributed along a circumference of said first sleeve.
9. A telescopic arm, comprising a sleeve assembly according to any one of claims 1 to 8.
10. A heading machine comprising a telescopic arm as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920994638.XU CN210105852U (en) | 2019-06-28 | 2019-06-28 | Sleeve assembly, telescopic arm and heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920994638.XU CN210105852U (en) | 2019-06-28 | 2019-06-28 | Sleeve assembly, telescopic arm and heading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210105852U true CN210105852U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920994638.XU Active CN210105852U (en) | 2019-06-28 | 2019-06-28 | Sleeve assembly, telescopic arm and heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210105852U (en) |
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2019
- 2019-06-28 CN CN201920994638.XU patent/CN210105852U/en active Active
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