CN118375672B - Overload moment limiting equipment of mine car transmission system - Google Patents
Overload moment limiting equipment of mine car transmission system Download PDFInfo
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- CN118375672B CN118375672B CN202410835841.8A CN202410835841A CN118375672B CN 118375672 B CN118375672 B CN 118375672B CN 202410835841 A CN202410835841 A CN 202410835841A CN 118375672 B CN118375672 B CN 118375672B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 238000001125 extrusion Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 59
- 230000000903 blocking effect Effects 0.000 claims description 28
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 230000013011 mating Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
- F16D43/202—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type
- F16D43/204—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type with intermediate balls or rollers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses overload torque limiting equipment of a mine car transmission system, and relates to the technical field of torque limiting. The overload moment limiting device of the mine car transmission system comprises a shell, an input shaft, an output shaft and a moment limiting mechanism. The torque limiting mechanism comprises an extrusion part and a driving disc. The extrusion piece is formed by the body, and the inside fretwork of body forms the extrusion room. The overload moment limiting equipment of the mine car transmission system is compact in structure and ingenious in design, deformation states of the elastic parts can be changed through the extrusion parts for different mountain terrains, so that the balls can be kept to be driven by driving forces in different ranges, elastic forces between the driving disc and the balls can be kept to be changed in different ranges, range values set for different terrains can be kept, torque transmission between the input shaft and the output shaft can be changed, the mine car is facilitated to cope with complex mountain terrains, operation transportation capacity of the mine car is improved, and passing capacity of the mine car in different mountain terrains is enhanced.
Description
Technical Field
The invention relates to the technical field of torque limitation, in particular to overload torque limiting equipment of a mine car transmission system.
Background
A torque limiter is a mechanical overload protection device that is typically installed between the drive side and the load side. Once overload condition occurs, when the transmitted torque exceeds the set value, the torque can be separated or slipped, so that overload damage is avoided.
Aiming at a transmission system requiring high torque, the torque limiter currently used adopts an elastic piece to push the ball, and keeps the ball in contact with the driving side, thereby realizing kinetic energy transmission. If the torque range set by the high torque transmission system is small, the transmission system can slip prematurely, thereby resulting in a high load mine car that cannot escape. The prior art can not change the moment limiting range according to the real-time mine topography, and the mine car can not pass through different mountain terrains, thereby bringing a certain limitation to the mine car operation.
Chinese patent publication No. CN104895958B discloses a self-resetting type adjustable torque limiter, in which balls are arranged between a guide arc slot and a round slot, and when the torque is too large, the balls can move between the guide arc slot and the round slot, thereby achieving the effect of torque limitation. However, the torque required by different transmission systems is different, the prior art can only manually adjust the outer ball seat, and the friction force between the balls and the guide arc groove and the round groove can not be quickly adjusted in a large range according to different environments. Accordingly, there is a need for further improvements in the art.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides overload moment limiting equipment of a mine car transmission system.
The technical scheme of the invention is realized as follows:
an overload torque limiting apparatus for a mine car transmission system, comprising:
A shell body, which consists of an upper shell and a lower shell, wherein the inner parts of the upper shell and the lower shell are hollowed out to form an installation area, the upper shell and the lower shell are connected through bolts,
The input shaft is arranged at one end of the shell, a flange plate is arranged on the input shaft, a coupling piece is arranged on the flange plate, a first mounting hole is formed in the middle of the coupling piece,
The output shaft is arranged at the other end of the shell and consists of an extension section, an external thread section, a rotation section, a driven disc and a positioning section, the diameters of the external thread section, the rotation section and the positioning section are larger than those of the extension section, a plurality of driving plates are arranged on the rotation section, a plurality of gaps are arranged on the driven disc, balls are arranged in the gaps,
The torque limiting mechanism is arranged inside the shell and is used for connecting the input shaft with the output shaft, and the torque limiting mechanism comprises:
The extrusion part arranged on the output shaft consists of a body, an extrusion chamber is formed in the body in a hollowed manner, a sealing tube is arranged at one end of the body, a sealing hole is formed in the middle of the sealing tube, a rotating section and an external thread section are arranged in the sealing hole, a pushing piece is arranged on the external thread section, an internal thread matched with the external thread section is arranged in the middle of the pushing piece, a sealing disc is arranged at the other end of the body, a contact hole is formed in the middle of the sealing disc, a strip-shaped opening communicated with the contact hole is further formed in the sealing disc, a driving plate is arranged in the extrusion chamber through the strip-shaped opening, an extending body is arranged on the body and positioned at one end of the sealing disc, a driven disc is arranged in the middle of the extending body and keeps the sealing disc and the driven disc in contact extrusion sealing, a blocking body is arranged on the body, a ball is in contact with the blocking body, the blocking body is connected with the sealing disc through an elastic part protruding towards the extrusion chamber,
And the driving disc is connected with the coupling piece, a plurality of driving holes are formed in the driving disc, the driving holes and the notches are correspondingly arranged, and the balls are arranged in the driving holes.
In the invention, a plurality of positioning blocks matched with the driving plate are arranged in the extrusion chamber, and a sliding area matched with the driving plate is formed in the middle of each positioning block.
In the present invention, a movable area is formed between the sealing disk, the elastic portion and the blocking body.
In the invention, the sealing disc and the blocking body are both provided with the fixed blocks, the fixed blocks are arranged in the movable area, a tension spring is arranged in the movable area, one end of the tension spring is connected with the fixed blocks on the sealing disc, and the other end of the tension spring is kept connected with the fixed blocks on the blocking body.
In the invention, a movable gap is arranged between the driven disc and the driving disc, 1/2 of the balls are arranged in the gaps, and 1/4 of the balls are arranged in the driving holes.
In the invention, the inner part of the extension body is hollowed out to form an annular area.
In the invention, a first arc-shaped arm is arranged in the driving hole, an arc-shaped section is arranged at the lower end of the first arc-shaped arm, a second arc-shaped arm is arranged on the arc-shaped section, a compression area is formed between the first arc-shaped arm and the second arc-shaped arm, and the second arc-shaped arm is kept in contact with the ball.
In the invention, the coupling piece is provided with an annular groove and a plurality of limiting holes, the limiting holes are communicated with the annular groove, the limiting holes are correspondingly arranged at the positions of the driving holes, a spring is arranged in each limiting hole, one end of the spring is contacted with the first arc-shaped arm, and the other end of the spring is kept in contact with the bottom wall of each limiting hole.
In the invention, the elastic part consists of a deformation section and a matching section, wherein the deformation section is connected with the blocking body, and the matching section is connected with the sealing disc.
In the invention, the thicknesses of the body, the blocking body, the extending body, the sealing tube and the sealing disc are all S, and the thickness of the elastic part is S/2.
The overload moment limiting device for the mine car transmission system has the following beneficial effects: the overload moment limiting equipment of the mine car transmission system is compact in structure and ingenious in design, deformation states of the elastic parts can be changed through the extrusion parts for different mountain terrains, so that the balls can be kept to be driven by driving forces in different ranges, elastic forces between the driving disc and the balls can be kept to be changed in different ranges, range values set for different terrains can be kept, torque transmission between the input shaft and the output shaft can be changed, the mine car is facilitated to cope with complex mountain terrains, operation transportation capacity of the mine car is improved, and passing capacity of the mine car in different mountain terrains is enhanced.
Drawings
FIG. 1 is a schematic diagram of an overload moment limiting apparatus of a mine car drive system of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is a partial enlarged view at B in FIG. 3;
FIG. 5 is an exploded view of FIG. 1;
FIG. 6 is a schematic view of the extrusion of FIG. 5;
FIG. 7 is a schematic view of the structure of FIG. 6 in another direction;
FIG. 8 is a cross-sectional view of FIG. 6;
FIG. 9 is an enlarged view of a portion at C in FIG. 8;
FIG. 10 is a schematic view of the structure of the output shaft and drive disc of FIG. 5;
FIG. 11 is a schematic view of the structure of FIG. 10 in another direction;
FIG. 12 is a cross-sectional view of the drive plate structure of FIG. 11;
FIG. 13 is a partial enlarged view at D in FIG. 12;
Fig. 14 is a schematic view of the structure of the output shaft in fig. 11.
In the figure: the housing 1, the input shaft 2, the output shaft 3, the torque limiting mechanism 4, the upper housing 5, the lower housing 6, the mounting area 7, the plug 8, the support portion 9, the bearing 10, the flange 11, the key groove 12, the key 13, the coupling 14, the first mounting hole 15, the extension 16, the male screw section 17, the rotation section 18, the driven disk 19, the positioning section 20, the pushing piece 21, the pressing piece 22, the driving plate 23, the notch 24, the ball 25, the driving disk 26, the mounting cylinder 27, the body 28, the sealing tube 29, the sealing hole 30, the female screw 31, the blocking body 32, the sealing disk 33, the contact hole 34, the strip-shaped opening 35, the pressing chamber 36, the positioning block 37, the sliding area 38, the extension 39, the annular area 40, the elastic portion 41, the deformation section 42, the fitting section 43, the movable area 44, the fixing block 45, the tension spring 46, the driving hole 47, the movable gap 48, the first arc arm 49, the arc section 50, the second arc arm 51, the compression area 52, the annular groove 53, the limiting hole 54, the spring 55, the injection tube 56.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 14, the overload moment limiting device of the mine car transmission system comprises a shell 1, an input shaft 2, an output shaft 3 and a moment limiting mechanism 4, wherein the shell 1 is used for protecting the moment limiting mechanism 4, and simultaneously preventing foreign matters such as external dust from entering into a gap between the input shaft 2 and the output shaft 3 to influence transmission between the input shaft 2 and the output shaft 3, so that the service life of the moment limiting mechanism 4 can be prolonged.
The shell 1 is composed of an upper shell 5 and a lower shell 6, an installation area 7 is formed by hollowing out the inner parts of the upper shell 5 and the lower shell 6, and the upper shell 5 and the lower shell 6 are connected through bolts. The upper casing 1 and the lower casing 1 are provided with supporting parts 9 on both sides, the supporting parts 9 are used for supporting the input shaft 2 and the output shaft 3, and when the input shaft 2 and the output shaft 3 are mounted on the supporting parts 9, a bearing 10 can be arranged in the middle, so that the input shaft 2, the output shaft 3 and the supporting parts 9 can not be contacted, and friction force is reduced.
An input shaft 2 is arranged at one end of the housing 1, the input shaft 2 being intended to remain connected to the drive, belonging to the drive side, and an output shaft 3 being intended to remain connected to the transmission system, belonging to the load side. The input shaft 2 is provided with a flange 11, the flange 11 is provided with a pin key groove 12, and the input shaft 2 is provided with a pin key 13 matched with the pin key groove 12. The flange 11 is provided with a coupling member 14, a first mounting hole 15 is formed in the middle of the coupling member 14, and the flange 11 is connected with the coupling member 14 through bolts, so that the coupling member 14 is kept to rotate along with the input shaft 2.
The output shaft 3 is arranged at the other end of the shell 1, and the output shaft 3 consists of an extension section 16, an external thread section 17, a rotation section 18, a driven disc 19 and a positioning section 20. The diameters of the external thread section 17, the rotating section 18 and the positioning section 20 are larger than those of the extending section 16, so that the pushing piece 21 can conveniently move on the external thread section 17, and the pushing piece 22 can be pushed to slide on the rotating section 18. The rotary section 18 is provided with a plurality of driving plates 23, the driven plate 19 is provided with a plurality of notches 24, and the notches 24 are internally provided with balls 25.
Example 1
In this embodiment, the moment limiting mechanism 4 is disposed inside the housing 1, the moment limiting mechanism 4 connects the input shaft 2 and the output shaft 3, the moment limiting mechanism 4 includes a pressing member 22 and a driving disc 26, the pressing member 22 is disposed on the output shaft 3, and the driving disc 26 is connected to the coupling member 14, so that the driving disc 26 can rotate together with the coupling member 14.
The driving disc 26 is provided with a mounting cylinder 27, a bearing 10 is arranged in the mounting cylinder 27, the positioning section 20 is arranged in the middle of the bearing 10, and the driving disc 26 is kept connected with the output shaft 3 through the bearing 10, so that the center line of the input shaft 2 and the center line of the output shaft 3 are overlapped.
The extrusion 22 comprises a body 28, an extrusion chamber 36 is formed by hollowing out the inside of the body 28, one end of the body 28 is provided with a sealing tube 29, a sealing hole 30 is formed in the middle of the sealing tube 29, the rotary section 18 and the external thread section 17 are arranged in the sealing hole 30, and a sealing ring can be arranged between the rotary section 18 and the sealing hole 30 to strengthen sealing. The pushing piece 21 is arranged on the external thread section 17, and the internal thread 31 matched with the external thread section 17 is arranged in the middle of the pushing piece 21, so that the pushing piece 21 can be matched with the external thread section 17, and when the pushing piece 21 rotates, the pushing piece can move on the external thread section 17, so that the pushing extrusion piece 22 is pushed, and the blocking body 32 for keeping the extrusion piece 22 extrudes the balls 25.
A sealing disc 33 is arranged at the other end of the body 28, a contact hole 34 is formed in the middle of the sealing disc 33, the rotary section 18 is arranged in the contact hole 34, a strip-shaped opening 35 communicated with the contact hole 34 is further arranged on the sealing disc 33, and the driving plate 23 is arranged in the extrusion chamber 36 through the strip-shaped opening 35. A plurality of positioning blocks 37 matched with the driving plate 23 are arranged in the extrusion chamber 36, and a sliding area 38 matched with the driving plate 26 is formed in the middle of the positioning blocks 37. The drive plate 23 enters from within the strip-shaped opening 35, and the strip-shaped opening 35 is disposed in correspondence with the position of the sliding region 38, so that the drive plate 23 can be directly inserted into the sliding region 38 through the strip-shaped opening 35.
The length of the positioning block 37 is smaller than that of the body 28, the length of the driving plate 23 is also smaller than that of the body 28, but is larger than half of the length of the body 28, and the length of the driving plate 23 is larger than that of the positioning block 37, so that when the driving plate 23 is inserted into the sliding region 38, a certain region is reserved in the sliding region 38, the driving plate 23 does not fully fill the sliding region 38, the extrusion 22 is kept in a movable state, and the pushing piece 21 can continuously push and squeeze the extrusion 22 towards the sealing disc 33. While also maintaining the expression member 22 away from the sealing disk 33.
The body 28 is provided with an extension body 39, the extension body 39 is located at one end of the sealing disc 33, and an annular area 40 is formed by hollowing out the inside of the extension body 39. The annular region 40, when pushed by the blocking body 32, can make the extension body 39 keep in contact with the driving disk 26, and is pressed by the reverse acting force of the driving disk 26, the extension body 39 is stressed to deform, and the annular region 40 is compressed, so that the stroke of pushing piece 21 pushing extrusion 22 can be larger.
The driven plate 19 is arranged in the middle of the extension 39, the sealing plate 33 is kept in contact with the driven plate 19 to be pressed and sealed, the body 28 is provided with a blocking body 32, the ball 25 is contacted with the blocking body 32, and the blocking body 32 is connected with the sealing plate 33 through an elastic part 41 protruding into the pressing chamber 36.
The elastic portion 41 is composed of a deformed section 42 and a mating section 43, the deformed section 42 is connected with the blocking body 32, and the mating section 43 is connected with the sealing disk 33. When the body 28 is pushed by the pushing member 21, the elastic portion 41 can be driven by the body 28 at this time, so that the mating section 43 gradually changes into the deformed section 42, and according to the position of the body 28, the lengths of the deformed section 42 and the mating section 43 continuously change. The body 28, the blocking body 32, the extension body 39, the sealing tube 29, and the sealing disk 33 all have a thickness S, and the elastic portion 41 has a thickness S/2, so that the elastic portion 41 can be better changed along with the movement of the body 28. The value of S is, for example, between 0.8 and 1.5 cm.
The seal disk 33, the elastic portion 41 and the blocking body 32 form a movable area 44 therebetween, and the movable area 44 enables the elastic portion 41 to move therein, and the movable area 44 can be kept contracted when the body 28 moves toward the drive disk 26 and expanded when the body 28 moves toward the push member 21, regardless of whether the body 28 moves toward the drive disk 26 or the push member 21.
The sealing disk 33 and the blocking body 32 are both provided with a fixed block 45, the fixed block 45 is arranged in the movable area 44, a tension spring 46 is arranged in the movable area 44, one end of the tension spring 46 is connected with the fixed block 45 on the sealing disk 33, and the other end is kept connected with the fixed block 45 on the blocking body 32. The body 28 can be limited by the elastic force through the tension spring 46, and when the body 28 moves towards the driving disc 26, the body 28 can be pulled by the tension spring 46, so that the body 28 is prevented from being subjected to larger extrusion force of the pushing piece 21, and the body 28 cannot be pushed by torsion exceeding the torque limiting range, so that the output shaft 3 continues to rotate along with the input shaft 2. The tension of the tension spring 46 is smaller than the external force applied by the pushing member 21 to push the body 28.
The driving disc 26 is connected with the coupling piece 14, a plurality of driving holes 47 are formed in the driving disc 26, the driving holes 47 and the notches 24 are correspondingly arranged, and the balls 25 are arranged in the driving holes 47. A clearance gap 48 is provided between the driven disc 19 and the driving disc 26, the intermediate portion of the ball 25 is located in the clearance gap 48, 1/2 of the ball 25 is located in the notch 24, and 1/4 of the ball 25 is located in the driving hole 47. When the balls 25 are in the driving holes 47 and the notches 24, the balls 25 are driven by the driving disc 26, so that the driven disc 19 is driven to keep the output shaft 3 rotating.
The driving hole 47 is provided with a first arc arm 49, the lower end of the first arc arm 49 is provided with an arc section 50, the arc section 50 is provided with a second arc arm 51, a compression area 52 is formed between the first arc arm 49 and the second arc arm 51, and the second arc arm 51 is kept in contact with the ball 25.
The coupling member 14 is provided with an annular groove 53 and a plurality of limiting holes 54, the limiting holes 54 are communicated with the annular groove 53, the limiting holes 54 are correspondingly arranged with the driving holes 47, springs 55 are arranged in the limiting holes 54, one ends of the springs 55 are in contact with the first arc-shaped arms 49, and the other ends of the springs 55 are kept in contact with the bottom wall of the limiting holes 54. The first arc arm 49 and the second arc arm 51 are positioned right in the annular groove 53, and are pushed by the spring 55 to keep the second arc arm 51 in contact with the ball 25, so as to limit the position of the ball 25.
Example two
In this embodiment, an injection tube 56 is disposed on the body 28, a plug 8 is disposed on the injection tube 56, and the injection tube 56 can be used for injecting gas or liquid into the extrusion chamber 36. The plug 8 can be removed and an injection device can be connected to inject gas or liquid into the extrusion chamber 36 to maintain the pressure inside the extrusion 22 and push the body 28 as the push member 21 rotates on the externally threaded section 17 as desired. Or the gas or liquid is continuously injected, so that the pressure in the extrusion chamber 36 is kept to be increased, at this time, since the sealing tube 29 is blocked by the pushing piece 21 and the sealing disc 33 is blocked by the driven disc 19, the pressure gradually pushes the blocking body 32 to drive the extending body 39 to approach to the direction of the driving disc 26, so that the extrusion force born by the ball 25 is kept to be increased, the output shaft 3 can bear larger torque, and the torque force born between the driving disc 26 and the roller is kept to be larger, so that the ball 25 cannot be separated from the driving hole 47 due to the torque force in the range. By providing a controller outside the housing 1, the operation of the injection device may be controlled.
Example III
In this embodiment, teeth (not shown in the figure) are disposed on the outer wall of the pushing member 21, a pushing motor is disposed in the lower housing 6, a driving motor is disposed on the pushing motor, a driving shaft matched with the teeth is disposed on the driving motor, a driving gear is disposed on the driving shaft, and the pushing motor drives the driving motor to move, so that the driving gear is engaged with the teeth, and when no adjustment is required, the driving gear is driven to be disengaged from the teeth. The length of the driving gear is greater than the width of the pushing piece 21, so that the driving motor drives the driving gear to rotate and can drive the pushing piece 21, and the pushing piece 21 moves on the external thread section 17.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. An overload torque limiting apparatus for a mine car transmission system, comprising:
A shell body, which consists of an upper shell and a lower shell, wherein the inner parts of the upper shell and the lower shell are hollowed out to form an installation area, the upper shell and the lower shell are connected through bolts,
The input shaft is arranged at one end of the shell, a flange plate is arranged on the input shaft, a coupling piece is arranged on the flange plate, a first mounting hole is formed in the middle of the coupling piece,
The output shaft is arranged at the other end of the shell and consists of an extension section, an external thread section, a rotation section, a driven disc and a positioning section, the diameters of the external thread section, the rotation section and the positioning section are larger than those of the extension section, a plurality of driving plates are arranged on the rotation section, a plurality of gaps are arranged on the driven disc, balls are arranged in the gaps,
The torque limiting mechanism is arranged inside the shell and is used for connecting the input shaft with the output shaft, and the torque limiting mechanism comprises:
The extrusion part arranged on the output shaft consists of a body, an extrusion chamber is formed in the body in a hollowed manner, a sealing tube is arranged at one end of the body, a sealing hole is formed in the middle of the sealing tube, a rotating section and an external thread section are arranged in the sealing hole, a pushing piece is arranged on the external thread section, an internal thread matched with the external thread section is arranged in the middle of the pushing piece, a sealing disc is arranged at the other end of the body, a contact hole is formed in the middle of the sealing disc, a strip-shaped opening communicated with the contact hole is further formed in the sealing disc, a driving plate is arranged in the extrusion chamber through the strip-shaped opening, an extending body is arranged on the body and positioned at one end of the sealing disc, a driven disc is arranged in the middle of the extending body and keeps the sealing disc and the driven disc in contact extrusion sealing, a blocking body is arranged on the body, a ball is in contact with the blocking body, the blocking body is connected with the sealing disc through an elastic part protruding towards the extrusion chamber,
And the driving disc is connected with the coupling piece, a plurality of driving holes are formed in the driving disc, the driving holes and the notches are correspondingly arranged, and the balls are arranged in the driving holes.
2. An overload moment limiting apparatus for a mine car transmission system according to claim 1, wherein a plurality of locating blocks are arranged in the extrusion chamber and are matched with the driving plate, and a sliding area matched with the driving plate is formed in the middle of each locating block.
3. An overload moment limiting apparatus for a mine car transmission system as claimed in claim 1, wherein the sealing disc, the resilient portion and the blocking body define a movable region therebetween.
4. An overload moment limiting apparatus for a mine car transmission system according to claim 3 wherein the sealing disc and the blocking body are provided with fixed blocks, the fixed blocks are arranged in an active area, a tension spring is arranged in the active area, one end of the tension spring is connected with the fixed blocks on the sealing disc, and the other end of the tension spring is kept connected with the fixed blocks on the blocking body.
5. An overload moment limiting apparatus for a mine car transmission system as claimed in claim 1, wherein a clearance is provided between the driven and driving discs, 1/2 of the balls are disposed in the notches, and 1/4 of the balls are disposed in the driving apertures.
6. An overload moment limiting apparatus for a mine car transmission system as claimed in claim 1, wherein the interior of the extension body is hollowed out to form an annular area.
7. An overload moment limiting apparatus for a mine car transmission system as claimed in claim 1, wherein a first arcuate arm is provided in the drive bore, an arcuate segment is provided at a lower end of the first arcuate arm, a second arcuate arm is provided on the arcuate segment, a compression zone is formed between the first arcuate arm and the second arcuate arm, and the second arcuate arm is maintained in contact with the ball bearing.
8. The overload moment limiting apparatus of claim 7, wherein the coupling member has an annular groove and a plurality of limiting holes, the limiting holes are in communication with the annular groove, the limiting holes are in corresponding arrangement with the driving holes, springs are arranged in the limiting holes, one ends of the springs are in contact with the first arc-shaped arms, and the other ends of the springs are in contact with the bottom walls of the limiting holes.
9. An overload moment limiting apparatus for a mine car transmission system as claimed in claim 1, wherein the resilient portion is comprised of a deformation section and a mating section, the deformation section being connected to the blocking body, the mating section being connected to the sealing disc.
10. An overload moment limiting apparatus for a mine car transmission system as claimed in claim 9, wherein the thickness of the body, the blocking body, the extension body, the sealing tube and the sealing disc is S, and the thickness of the resilient portion is S/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410835841.8A CN118375672B (en) | 2024-06-26 | 2024-06-26 | Overload moment limiting equipment of mine car transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410835841.8A CN118375672B (en) | 2024-06-26 | 2024-06-26 | Overload moment limiting equipment of mine car transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118375672A CN118375672A (en) | 2024-07-23 |
| CN118375672B true CN118375672B (en) | 2024-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410835841.8A Active CN118375672B (en) | 2024-06-26 | 2024-06-26 | Overload moment limiting equipment of mine car transmission system |
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| Country | Link |
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| CN (1) | CN118375672B (en) |
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| CN111749998A (en) * | 2020-06-18 | 2020-10-09 | 中国煤炭科工集团太原研究院有限公司 | Transmission system of mining conveying part, moment limiting speed reducer of transmission system and control method of moment limiting speed reducer |
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| US4786271A (en) * | 1985-11-01 | 1988-11-22 | Menn Pavel M | Coupling for end-to-end rotatable shafts |
| JP3725821B2 (en) * | 2001-12-26 | 2005-12-14 | 山久チヱイン株式会社 | Torque limiter |
| JP2007327572A (en) * | 2006-06-08 | 2007-12-20 | Tsubaki Yamakyu Chain Co | Torque limiter |
| US8915345B2 (en) * | 2012-12-03 | 2014-12-23 | A&E Incorporated | Torque limiting clutch |
| CN203161879U (en) * | 2013-02-07 | 2013-08-28 | 福建合众机械有限公司 | Axial-locking-type overload protection shaft |
| JP6182709B2 (en) * | 2014-06-09 | 2017-08-23 | 有限会社マツモトエンジニアリング | Axial force-induced torque transmission device |
| EP3425229B1 (en) * | 2017-07-08 | 2020-04-29 | Hamilton Sundstrand Corporation | Torque limiter assembly |
| CN210889821U (en) * | 2019-09-25 | 2020-06-30 | 绵阳富临精工机械股份有限公司 | Coupler and electric phase adjusting system |
| CN213628568U (en) * | 2020-10-14 | 2021-07-06 | 牧德科技（北京）有限公司 | Hoisting equipment |
| CN115574008A (en) * | 2022-09-29 | 2023-01-06 | 重庆清平机械有限责任公司 | Torque overload protection device |
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2024
- 2024-06-26 CN CN202410835841.8A patent/CN118375672B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973535A (en) * | 2019-03-31 | 2019-07-05 | 丹东隆强科技有限责任公司 | A kind of torque overload automatic clutch protection diaphragm coupling |
| CN111749998A (en) * | 2020-06-18 | 2020-10-09 | 中国煤炭科工集团太原研究院有限公司 | Transmission system of mining conveying part, moment limiting speed reducer of transmission system and control method of moment limiting speed reducer |
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