CN215338265U - Radial play detection mechanism for bearing - Google Patents

Abstract

The utility model discloses a radial play detection mechanism for a bearing, which comprises a feeding component, wherein a positioning component is arranged below the feeding component, a detection component is arranged on the side edge of the positioning component, and an upward jacking component is arranged below the detection component. The utility model has the beneficial effects that: the inner ring of the bearing to be detected is firmly fixed through the positioning assembly and the expansion structure, the fixing position is accurate, no deviation occurs, the accuracy of radial clearance detection of the bearing is improved, and the expansion structure is ingenious in structure, easy to maintain and free of crushing the bearing; through the arrangement of the auxiliary cylinder, the connection performance of the fixing frame and the auxiliary support and the service life of the connected elastic sheet are ensured, the test rod is prevented from being worn badly after being used for a long time, the service life of the detection assembly is prolonged, and the service life of the whole detection mechanism is prolonged; the detection mechanism is operated by a full-automatic system, has high detection efficiency and high detection precision, reduces the labor intensity of workers and reduces the detection misjudgment rate.

Description

Radial play detection mechanism for bearing

Technical Field

The utility model relates to the technical field of bearing clearance detection, in particular to a radial clearance detection mechanism for a bearing.

Background

The bearing play is the clearance between the bearing rolling elements and the bearing inner and outer race shells. The bearing play refers to a movement amount when the bearing is not mounted on the shaft or the bearing housing, the inner ring or the outer ring is fixed, and then the non-fixed bearing play is moved in the radial direction or the axial direction. According to the direction of movement, radial play and axial play can be divided. The radial play refers to a bearing which bears radial load in a non-pretightening state, and the radial play is the arithmetic mean value of radial distances of an outer ring relative to an inner ring from a radial eccentric limit position to an opposite limit position in any radial angle direction without external load action. The radial play of the bearing is one of important detection items of the finished bearing, because the size of the play has influence on the rolling fatigue life, temperature rise, noise, vibration, running and other performances of the bearing. The conventional method relying on manual detection is poor in detection accuracy, large in manual labor amount, high in cost and low in detection efficiency, and the requirement for detecting the axial clearance of the bearing is difficult to meet.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a radial play detection mechanism for a bearing to solve the problems set forth in the above-described background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a radial play detection mechanism for a bearing comprises a feeding assembly, wherein a positioning assembly is arranged below the feeding assembly, a detection assembly is arranged on the side edge of the positioning assembly, and an upper jacking assembly is arranged below the detection assembly;

the feeding assembly comprises a feeding support, a feeding cylinder is arranged at the upper end of the feeding support, the feeding cylinder is vertically arranged, and a clamping jaw cylinder is connected to the end of a piston rod at the lower end of the feeding cylinder

The positioning assembly comprises a first positioning cylinder which is horizontally arranged, a sliding support is arranged at the piston rod end of the first positioning cylinder and is arranged below the feeding support, a second positioning cylinder is fixed above the sliding support, the second positioning cylinder is horizontally arranged, the piston rod end of the second positioning cylinder horizontally extends out along the position of the detection assembly, a positioning rod is arranged at the piston rod end of the second positioning cylinder, and a detection plate is arranged at the side edge, close to the detection assembly, of the sliding support;

the detection assembly comprises a detection fixing plate, an expansion structure is fixed in the middle of the detection fixing plate, an auxiliary support is connected to the side edge of the detection fixing plate, an auxiliary cylinder is fixed in the direction close to the positioning assembly, a displacement sensor is fixed above the auxiliary support, a fixing frame is connected below the auxiliary support, a vertically arranged test rod is arranged on the fixing frame, and the fixing frame and a test head of the displacement sensor are designed coaxially;

the upper ejection assembly comprises an air cylinder fixing plate, the air cylinder fixing plate is arranged on the side, close to the positioning assembly, of the detection fixing plate, an upper ejection air cylinder is fixed on the air cylinder fixing plate, an ejector rod fixing plate is arranged at the end of an upper end piston rod of the upper ejection air cylinder, and an ejector rod which is vertically arranged is fixed on the ejector rod fixing plate.

Preferably, a linear guide rail is arranged below the sliding support, and a limit block is arranged at the end, far away from the first positioning cylinder, of the linear guide rail.

Preferably, a support sleeve is fixed on the sliding support and sleeved on a piston rod of the second positioning cylinder.

Further preferably, an elastic sheet is connected between the fixing frame and the auxiliary support, an auxiliary supporting rod is arranged on the side edge, close to the auxiliary cylinder, of the fixing frame, a supporting rod is connected to the end of the piston rod of the auxiliary cylinder and is arranged below the auxiliary supporting rod, and the supporting rod is in a frustum structural design.

Preferably, the detection plate is provided with a rectangular groove, the bottom of the detection plate is provided with a through hole which penetrates through the detection plate from top to bottom, and two side walls of the groove are provided with circular through holes.

Further preferably, the structure of rising contains the sleeve and the cylinder that rises, the sleeve that rises sets up in the side that is close to locating component that detects the fixed plate, the cylinder that rises sets up in the side of keeping away from locating component that detects the fixed plate, the tailpiece of the piston rod of the cylinder that rises is connected with the push rod, and it wears to locate in the sleeve that rises.

Preferably, the expansion sleeve is designed to be a pillar stand structure, a hole groove penetrating horizontally is formed in the upper portion of the expansion sleeve, an expansion groove for dividing the expansion sleeve into an upper portion and a lower portion evenly is formed in the end, far away from the expansion cylinder, of the expansion sleeve, and the hole groove is formed in the upper portion of the expansion groove and close to the end of the expansion cylinder.

Preferably, the hole in the expansion sleeve is of a pillar stand structure, the aperture of the hole far away from the expansion cylinder end is smaller than the aperture of the hole close to the expansion cylinder end, and the end of the push rod far away from the expansion cylinder end is provided with a cone head of a cone stand structure.

Preferably, two guide structures consisting of guide pillars and guide sleeves are arranged between the ejector rod fixing plate and the cylinder fixing plate, and the two guide structures are symmetrically arranged on two sides of the upper ejection cylinder.

Has the advantages that: according to the radial play detection mechanism for the bearing, the bearing can be accurately fixed on the expansion sleeve by pushing the two positioning cylinders of the positioning assembly, the structural design of the expansion sleeve ensures that the inner ring of the bearing is firmly fixed without deviation, the precision of the radial play detection of the bearing is improved, and the expansion structure is ingenious in structure and easy to maintain and cannot crush the bearing; through the arrangement of the auxiliary cylinder, the connection performance of the fixing frame and the auxiliary support and the service life of the connected elastic sheet are ensured, the test rod is prevented from being worn badly after being used for a long time, the service life of the detection assembly is prolonged, and the service life of the whole detection mechanism is prolonged; the detection mechanism is operated by a full-automatic system, has high detection efficiency and high detection precision, reduces the labor intensity of workers, has low operation cost and reduces the detection misjudgment rate.

Drawings

Fig. 1 is a schematic axial view of a radial play detection mechanism for a bearing according to an embodiment of the present invention;

fig. 2 is a front view structural schematic diagram of a radial play detection mechanism for a bearing according to an embodiment of the present invention;

fig. 3 is a rear view structural schematic diagram of a radial play detection mechanism for a bearing according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a feeding assembly according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a positioning assembly according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a detecting assembly according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of the expanding structure without the expanding cylinder according to the embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view of the expanding structure without the expanding cylinder according to the embodiment of the present invention;

fig. 9 is a schematic structural diagram of the ceiling assembly according to the embodiment of the present invention.

Reference numerals: 1-a feeding component, 11-a feeding bracket, 12-a feeding cylinder, 13-a clamping jaw cylinder, 2-a positioning component, 21-a first positioning cylinder, 22-a sliding bracket, 23-a linear guide rail, 24-a second positioning cylinder, 25-a detection plate, 26-a supporting sleeve, 27-a positioning rod, 3-a detection component, 31-a detection fixing plate, 32-an expansion structure, 321-an expansion sleeve, 3211-a hole groove, 3212-an expansion groove, 322-an expansion cylinder, 323-a push rod, 3231-a conical head, 33-an auxiliary bracket, 34-a displacement sensor, 35-an auxiliary cylinder, 36-a supporting rod, 37-a fixing frame, 38-a test rod, 39-an auxiliary supporting rod, 4-an upward-jacking component, 41-a cylinder fixing plate, 42-upper ejection cylinder, 43-ejector rod fixing plate and 44-ejector rod.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-9, a radial play detection mechanism for a bearing comprises a feeding component 1, a positioning component 2 is arranged below the feeding component 1, a detection component 3 is arranged on the side edge of the positioning component 2, and an upward jacking component 4 is arranged below the detection component 3;

the feeding assembly 1 comprises a feeding support 11, a feeding cylinder 12 is arranged at the upper end of the feeding support 11, the feeding cylinder 12 is vertically arranged, and a clamping jaw cylinder 13 is connected to the end of a piston rod at the lower end of the feeding cylinder 12

The positioning assembly 2 comprises a first positioning cylinder 21 which is horizontally arranged, a sliding support 22 is arranged at the piston rod end of the first positioning cylinder 21 and is arranged below the feeding support 11, a second positioning cylinder 24 is fixed above the sliding support 22, the second positioning cylinder 24 is horizontally arranged, the piston rod end of the second positioning cylinder 24 horizontally extends out along the position of the detection assembly 3, a positioning rod 27 is arranged at the piston rod end of the second positioning cylinder 24, and a detection plate 25 is arranged at the side edge of the sliding support 22 close to the detection assembly 3;

the detection assembly 3 comprises a detection fixing plate 31, an expansion structure 32 is fixed in the middle of the detection fixing plate 31, an auxiliary support 33 is connected to the side edge of the detection fixing plate 31, an auxiliary cylinder 35 is fixed in the direction close to the positioning assembly 2, a displacement sensor 34 is fixed above the auxiliary support 33, a fixing frame 37 is connected below the auxiliary support 33, a vertically arranged test rod 38 is arranged on the fixing frame 37, and the fixing frame and a test head of the displacement sensor 34 are designed coaxially;

the upward-pushing assembly 4 comprises a cylinder fixing plate 41, the cylinder fixing plate 41 is arranged on the side, close to the positioning assembly 2, of the detection fixing plate 31, an upward-pushing cylinder 42 is fixed on the cylinder fixing plate 41, a push rod fixing plate 43 is arranged at the end of an upper end piston rod of the upward-pushing cylinder 42, and a push rod 44 which is vertically arranged is fixed on the push rod fixing plate.

In the application, the feeding assembly 1 is used for loading and unloading the bearing, the clamping jaw cylinder 13 is driven to lift through the feeding cylinder 12, loading and unloading of the bearing are achieved, a guide rail and sliding block structure is arranged between the clamping jaw cylinder 13 and the feeding support 11, and stable and accurate lifting of the clamping jaw cylinder 13 is guaranteed; the positioning assembly 2 is used for accurately positioning the bearing to ensure that the fixing position of the bearing is accurate, the first positioning cylinder 21 is used for conveying the bearing to the expansion sleeve 321 of the expansion structure 32 of the detection assembly 3, and the second positioning cylinder 24 is used for ensuring that the position of the bearing inner ring sleeved on the expansion sleeve 321 is accurate; the detection assembly 3 is matched with the jacking assembly 4 to realize radial play detection of the bearing, the auxiliary cylinder 35 drives the supporting rod 36 to retract, the fixing frame 37 and the testing rod 38 descend to press the outer ring of the bearing downwards, so that the outer ring of the bearing is located at a downward limit position relative to the inner ring, the displacement sensor 34 detects the size of the position, the jacking cylinder 42 drives the ejector rod 44 to ascend, the outer ring of the bearing is jacked up from the lower side of the outer ring of the bearing, the outer ring of the bearing is located at an upward limit position relative to the inner ring, the displacement sensor 34 detects the size of the position, and the radial play of the bearing can be calculated through the sizes of the upper limit position and the lower limit position of the outer ring of the bearing relative to the inner ring.

In this application, the promotion of two location cylinders of locating component 2 guarantees that the bearing can be accurate be fixed in on the sleeve 321 that rises, the structure 32 that rises guarantees that the bearing inner race is fixed firmly on the sleeve 321 that rises, can not take place the deviation, has improved the precision that the radial play of bearing detected, the structure of the structure 32 that rises is ingenious, and it is easy to maintain, and can not crush the bearing. The radial play detection mechanism for the bearing is operated by a full-automatic system, has high detection efficiency and high detection precision, reduces the labor intensity of workers and reduces the misjudgment rate.

Preferably, a linear guide rail 23 is arranged below the sliding support 22, and a limit block is arranged at the end, far away from the first positioning cylinder 21, of the linear guide rail 23 and used for limiting the stroke of the sliding support 22 and ensuring accurate positioning of the bearing.

Preferably, a supporting sleeve 26 is fixed on the sliding support 22, and the supporting sleeve 26 is sleeved on a piston rod of the second positioning cylinder 24, so as to support the piston rod of the second positioning cylinder 24 and ensure that the conveying direction of the second positioning cylinder 24 is accurate.

Preferably, an elastic sheet is connected between the fixed frame 37 and the auxiliary support 33, an auxiliary support rod 39 is arranged on a side edge of the fixed frame 37 close to the auxiliary cylinder 35, a support rod 36 is connected to a piston rod end of the auxiliary cylinder 35 and is arranged below the auxiliary support rod 39, and the support rod 36 is designed in a frustum structure.

In the present application, the elastic sheet between the fixing frame 37 and the auxiliary bracket 33 ensures the movement of the fixing frame 37, so that the fixing frame can move up and down, and the testing rod 38 can press the outer ring of the bearing; when the auxiliary cylinder 35 pushes the supporting rod 36 to move towards the auxiliary supporting rod 39, the supporting rod 39 slowly jacks up the auxiliary supporting rod 39 for supporting the fixing frame 37 and the testing rod 38, so that the connection performance of the fixing frame 37 and the auxiliary support 33 and the service life of a connected elastic sheet are ensured, the testing rod 38 is prevented from being worn badly after being used for a long time, and the service life of the detection assembly 3 is prolonged; when the auxiliary cylinder 35 pulls the supporting rod 36 to retract, the supporting rod 39 moves away from the auxiliary supporting rod 39 and is separated from the auxiliary supporting rod 39, so that the testing rod can be guaranteed to be attached to the outer diameter of the bearing; the detection component 3 is ingenious in structure and long in service life.

Preferably, a rectangular groove is formed in the detection plate 25, a through hole penetrating through the detection plate from top to bottom is formed in the bottom of the detection plate 25, circular through holes are formed in two side walls of the groove, the rectangular groove in the detection plate 25 is used for placing a bearing, the through hole in the bottom of the groove is used for jacking the ejector rod 44, and the through holes in the two side walls of the groove are used for expanding the sleeve 321 and extending the positioning rod 27 into the through hole respectively.

Preferably, the expanding structure 32 comprises an expanding sleeve 321 and an expanding cylinder 322, the expanding sleeve 321 is disposed on the side surface of the detection fixing plate 31 close to the positioning assembly 2, the expanding cylinder 322 is disposed on the side surface of the detection fixing plate 31 far from the positioning assembly 2, and a piston rod end of the expanding cylinder 322 is connected with a push rod 323 which is disposed in the expanding sleeve 321 in a penetrating manner; the expanding sleeve 321 is designed to be a column base structure, a hole groove 3211 which penetrates horizontally is formed in the upper portion of the expanding sleeve 321, an expanding groove 3212 which divides the expanding sleeve 321 into upper and lower portions evenly is formed in the end, far away from the expanding cylinder 322, of the expanding sleeve 321, and the hole groove 3211 is formed in the upper portion of the expanding groove 3212 and close to the end of the expanding cylinder 322; the hole in the expansion sleeve 321 is of a pillar stand structure, the aperture of the end far away from the expansion cylinder 322 is smaller than the aperture of the end close to the expansion cylinder 322, and the end, far away from the expansion cylinder 322, of the push rod 323 is provided with a cone head 3231 of a cone stand structure.

In this application, the expanding sleeve 321 is divided into two parts by the expanding groove 312, wherein the upper part of the expanding sleeve 321 is provided with the hole 3211 to provide an avoiding space for expanding the upper part of the expanding sleeve 321, so that the lower part of the expanding groove 312 far away from the expanding cylinder 322 end is fixed, and the upper part is expanded upwards to fix the inner ring of the bearing. The expansion of the expansion sleeve 321 is realized by the fact that the conical head 3231 at the top end of the push rod 323 abuts against the inner step of the hole of the expansion sleeve 321.

Preferably, two guide structures composed of guide pillars and guide sleeves are arranged between the ejector rod fixing plate 43 and the cylinder fixing plate 41, and the two guide structures are symmetrically arranged on two sides of the upper ejection cylinder 42 to ensure stable up-and-down operation of the ejector rod 44.

The application said radial play detection mechanism for bearing's work flow do:

1) the feeding assembly 1 acts, the clamping jaws of the clamping jaw air cylinders 13 clamp the bearing to be detected conveyed from the upper end station, the feeding air cylinders 12 act to drive the clamping jaw air cylinders 13 to move downwards, and the bearing to be detected is placed in the rectangular groove of the detection plate 25;

2) the positioning assembly 2 acts, the first positioning cylinder 21 drives the sliding support 22 to operate, so that a bearing to be detected in the detection plate 25 fixed on the sliding support runs towards the detection assembly 3, the bearing to be detected in the detection plate 25 is sleeved at the end part of the expansion sleeve 321, the second positioning cylinder 21 acts, the positioning rod 27 is driven to rapidly push the positioning rod 27 towards the bearing to be detected, and the inner ring of the bearing to be detected is completely sleeved at the end part of the expansion sleeve 321 and tightly attached to the end part of the expansion sleeve 321;

3) the detection assembly 3 acts, the expansion cylinder 322 of the expansion structure 32 drives the push rod 323 to act, so that the push rod 323 moves in the hole of the expansion sleeve 321, the end part, extending into the bearing inner ring to be detected, of the expansion sleeve 321 is expanded by the conical head 3231 at the top end of the push rod 323, the bearing inner ring to be detected is fixed, the auxiliary cylinder 35 drives the support rod 36 to be far away from the auxiliary support rod 39, so that the test rod descends and abuts against the bearing outer ring to be detected, at the moment, the outer ring of the bearing to be detected is located at a downward limit position relative to the inner ring, and the displacement sensor 34 detects the position size of the bearing outer ring in this state;

4) the upward jacking assembly 4 acts, the upward jacking cylinder 42 drives the jacking rod 44 to move upwards to jack the lower part of the outer ring of the bearing to be detected, the outer ring of the bearing to be detected is jacked upwards, the outer ring of the bearing to be detected is located at an upward limit position relative to the inner ring, the displacement sensor 34 detects the position size of the outer ring of the bearing in the state, and the control system connected with the detection mechanism calculates the radial clearance of the bearing to be detected according to twice detection data of the displacement sensor 34.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall be included in the contents of the present invention within the scope of the protection of the present invention.

Claims (9)

1. A radial play detection mechanism for a bearing, characterized in that: the device comprises a feeding component (1), wherein a positioning component (2) is arranged below the feeding component (1), a detection component (3) is arranged on the side edge of the positioning component (2), and an upper jacking component (4) is arranged below the detection component (3);

the feeding component (1) comprises a feeding support (11), a feeding cylinder (12) is arranged at the upper end of the feeding support (11), the feeding cylinder (12) is vertically arranged, and the end of a lower end piston rod of the feeding cylinder is connected with a clamping jaw cylinder (13)

The positioning assembly (2) comprises a first positioning cylinder (21) which is horizontally arranged, a sliding support (22) is arranged at the piston rod end of the first positioning cylinder (21) and is arranged below the feeding support (11), a second positioning cylinder (24) is fixed above the sliding support (22), the second positioning cylinder (24) is horizontally arranged, the piston rod end of the second positioning cylinder horizontally extends out along the position of the detection assembly (3), a positioning rod (27) is arranged at the piston rod end of the second positioning cylinder (24), and a detection plate (25) is arranged on the side edge, close to the detection assembly (3), of the sliding support (22);

the detection assembly (3) comprises a detection fixing plate (31), an expansion structure (32) is fixed in the middle of the detection fixing plate (31), an auxiliary support (33) is connected to the side edge of the detection fixing plate (31), an auxiliary cylinder (35) is fixed in the direction close to the positioning assembly (2), a displacement sensor (34) is fixed above the auxiliary support (33), a fixing frame (37) is connected below the auxiliary support (33), a vertically arranged test rod (38) is arranged on the fixing frame (37), and the fixing frame and a test head of the displacement sensor (34) are designed in a coaxial manner;

go up top subassembly (4) and contain cylinder fixed plate (41), cylinder fixed plate (41) set up in the side that is close to locating component (2) that detects fixed plate (31), be fixed with on cylinder fixed plate (41) and go up top cylinder (42), the upper end piston rod end of going up top cylinder (42) is equipped with ejector pin fixed plate (43), is fixed with ejector pin (44) of vertical setting on it.

2. A radial play detecting mechanism for a bearing according to claim 1, characterized in that: the lower part of the sliding support (22) is provided with a linear guide rail (23), and the end of the linear guide rail (23) far away from the first positioning cylinder (21) is provided with a limiting block.

3. A radial play detecting mechanism for a bearing according to claim 1, characterized in that: a supporting sleeve (26) is fixed on the sliding support (22), and the supporting sleeve (26) is sleeved on a piston rod of the second positioning cylinder (24).

4. A radial play detecting mechanism for a bearing according to claim 1, characterized in that: be connected with the shell fragment between mount (37) and auxiliary stand (33), the side that is close to auxiliary cylinder (35) of mount (37) is equipped with auxiliary stay pole (39), the tailpiece of the piston rod of auxiliary cylinder (35) is connected with bracing piece (36), and it sets up in the below of auxiliary stay pole (39), bracing piece (36) become the frustum structural design.

5. A radial play detecting mechanism for a bearing according to claim 1, characterized in that: the detecting plate (25) is provided with a rectangular groove, the bottom of the detecting plate is provided with a through hole which penetrates through the detecting plate from top to bottom, and two side walls of the detecting plate are provided with circular through holes.

6. A radial play detecting mechanism for a bearing according to claim 1, characterized in that: the structure (32) of rising contains the sleeve (321) of rising and rises cylinder (322), the sleeve (321) of rising sets up in the side that is close to locating component (2) that detects fixed plate (31), the cylinder (322) of rising sets up in the side of keeping away from locating component (2) that detects fixed plate (31), the tailpiece of the piston rod of the cylinder (322) of rising is connected with push rod (323), and it wears to locate in the sleeve (321) of rising.

7. A radial play detecting mechanism for a bearing according to claim 6, characterized in that: the expansion sleeve (321) is designed to be a column base structure, a hole groove (3211) which penetrates horizontally is formed in the upper portion of the expansion sleeve, an expansion slot (3212) which divides the expansion sleeve (321) evenly up and down is formed in the end, far away from the expansion cylinder (322), of the expansion sleeve (321), and the hole groove (3211) is formed in the upper portion of the expansion slot (3212) and is close to the end of the expansion cylinder (322).

8. A radial play detecting mechanism for a bearing according to claim 6, characterized in that: the hole in the expansion sleeve (321) is of a column base structure, the aperture of the end, far away from the expansion cylinder (322), of the hole is smaller than the aperture of the end, close to the expansion cylinder (322), of the push rod (323), the end, far away from the expansion cylinder (322), of the hole is provided with a conical head (3231) of a frustum structure.

9. A radial play detecting mechanism for a bearing according to claim 1, characterized in that: two guide structures consisting of guide pillars and guide sleeves are arranged between the ejector rod fixing plate (43) and the air cylinder fixing plate (41), and the two guide structures are symmetrically arranged on two sides of the upper ejector air cylinder (42).

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