A flange assembly high detection device for sliding bearings

Abstract

The present invention relates to the technical field of measuring devices, and specifically to a flange assembly height detection device for a sliding bearing, comprising a base and a bearing seat, a bracket welded on the outer wall of the base, a bearing shell fixed in the bearing seat, a flange end provided at the end of the bearing shell, and also comprising: a circumferential measuring mechanism. The circumferential measuring mechanism provided in the present invention allows the lever to first lift the measuring rod upward during measurement, and then the turntable drives the measuring rod of the digital micrometer to rotate around the axis of the bearing seat to achieve the switching of the measuring point. When the lever is disengaged from the start lever, under the action of spring 1, the start lever drives the measuring rod downward, so that the measuring rod abuts against the flange end, and the measurement result is read by the digital micrometer and input into the control system for recording, and so on and so forth, so that the turntable rotates one circle, achieving the effect of multi-point measurement of the flange end, and avoiding the randomness of the measurement result.

Description

Technical Field

[0001] The invention belongs to the technical field of measuring devices, and in particular relates to a flange assembly height detection device for a sliding bearing. Background Art

[0002] Sliding bearings are bearings that work under sliding friction. The parts that match the shaft on the sliding bearing are bearing shells. No relative movement is allowed between the bearing shells and the bearing seat. Generally, flanges are set at both ends of the bearing shells to limit the axial movement of the bearing shells. Therefore, it is necessary to detect the flange assembly height of the sliding shaft seat before assembly, that is, the distance between the flange end face and the bearing seat end face, such as Figure 2 As shown, by comparing the measurement results with the flange thickness, it is possible to determine whether there is a floating gap between the flange of the bearing shell and the end face of the bearing seat.

[0003] However, the existing detection device can only measure one point at a time, the data collection is insufficient, the measurement results are prone to randomness, and when multiple sets of data need to be measured, re-clamping and repositioning are required, which reduces the work efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a flange assembly height detection device for a sliding bearing.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A flange assembly height detection device for a sliding bearing comprises a base and a bearing seat, a bracket is welded on the outer wall of the base, a bearing bush is fixed in the bearing seat, and a flange end is provided at the end of the bearing bush, and further comprises:

[0007] A circumferential measuring mechanism is used for performing multi-point position measurement along the circumferential direction of the end face of the flange end, the circumferential measuring mechanism is arranged on the base, the circumferential measuring mechanism comprises a digital micrometer, a turntable is rotatably plugged on the outer wall of the bracket, a support is welded on the top outer wall of the turntable, a limit rod is welded on the outer wall of the digital micrometer, the limit rod is slidably plugged on the outer wall of the support, a matching measuring rod is arranged on the digital micrometer, the end of the measuring rod extends to the bottom of the turntable, a motor is welded on the outer wall of the support, a gear 1 is welded on the main shaft end of the motor, the gear 1 is an incomplete gear, a gear ring 1 is welded on the outer wall of the bracket, the gear 1 is matched with the gear ring 1, a lever is welded on the outer wall of the main shaft section of the motor away from the gear 1 side, a starting lever is welded on the outer wall of the measuring rod, and the starting lever is matched with the shift lever;

[0008] A radial floating mechanism, used to drive the circumferential measuring mechanism to float along the end surface diameter direction of the flange end, and the radial floating mechanism is arranged on the base;

[0009] And a clamping and positioning mechanism is used to clamp the bearing seat and position the axis of the bearing seat at the same time.

[0010] In the above-mentioned flange assembly height detection device for a sliding bearing, a control system is provided on the outer wall of the base, and the control system is connected to the digital micrometer through an electrical signal.

[0011] In the above-mentioned flange assembly high detection device of a sliding bearing, the radial floating mechanism includes a sliding sleeve, a sliding groove is opened on the outer wall of the turntable, the sliding sleeve is slidably inserted in the sliding groove, a second spring is welded between the outer wall of the sliding sleeve and the outer wall of the sliding groove, a cam is rotatably inserted on the outer wall of the turntable, and a second gear is welded on the outer wall of the main shaft of the motor.

[0012] In the above-mentioned flange assembly height detection device of a sliding bearing, the gear 2 is an incomplete gear, a gear ring 2 is welded on the top outer wall of the cam, the gear ring 2 is adapted to the gear 2, and the sleeve is slidably mounted on the outer wall of the measuring rod.

[0013] In the above-mentioned flange assembly high detection device of a sliding bearing, an abutment block is welded on the top outer wall of the sliding sleeve, a spring is welded between the outer wall of the abutment block and the outer wall of the starting rod, a plurality of grooves are opened on the circumferential outer wall of the cam, the abutment block is adapted to the grooves, and the distance between each groove and the axis center of the cam is different.

[0014] In the above-mentioned flange assembly high detection device of a sliding bearing, the clamping and positioning mechanism includes an electric push rod, an electric push rod is welded on the bottom outer wall of the base, a mounting frame is welded on the outer wall of the output end of the electric push rod, a receiving frame is slidably inserted on the outer wall of the mounting frame, the receiving frame is coaxially distributed with the turntable, and the receiving frame is adapted to the flange end.

[0015] In the above-mentioned flange assembly high detection device of a sliding bearing, a spring three is welded between the outer wall of the receiving frame and the outer wall of the mounting frame, and a number of equidistant and circumferentially distributed positioning rods are slidably inserted on the outer wall of the mounting frame, and the positioning rods are adapted to the inner diameter of the bearing shell on the bearing seat.

[0016] In the above-mentioned flange assembly height detection device for sliding bearings, a plurality of equidistantly distributed connecting rods are rotatably plugged into the top outer wall of the receiving frame, and one end of the connecting rod away from the receiving frame is rotatably plugged into the outer wall of the positioning rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the circumferential measuring mechanism, when measuring, the lever first lifts the measuring rod upward, and then the turntable drives the measuring rod of the digital micrometer to rotate around the axis of the bearing seat to switch the measuring point. When the lever is disengaged from the start lever, the start lever drives the measuring rod downward under the action of spring 1, so that the measuring rod abuts against the flange end. The measurement result is read through the digital micrometer and input into the control system for recording. This reciprocating process makes the turntable rotate one circle, so as to achieve the effect of multi-point measurement of the flange end and avoid the accidental measurement result.

[0019] 2. By setting up a radial floating mechanism, when the turntable rotates, the cam can rotate relative to the turntable, so that the cam drives the grooves to rotate, and then the different grooves are aligned with the abutment blocks. Under the action of spring 2, the abutment blocks always maintain an abutment state with the cam, so that when the cam rotates, the abutment blocks can drive the sleeve to float radially, so that the sleeve drives the measuring rod to float radially with a small stroke, and then the measuring point on the flange end can float radially, realizing radial floating while switching the measuring point in the circumferential direction, increasing the randomness of the measuring point and further avoiding the randomness of the measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a plane schematic diagram of the bearing seat of the present invention.

[0022] Figure 3 It is a three-dimensional cross-sectional schematic diagram of a turntable of the present invention.

[0023] Figure 4 It is a three-dimensional schematic diagram of a turntable of the present invention.

[0024] Figure 5 It is a three-dimensional schematic diagram of the cam of the present invention.

[0025] Figure 6 It is a three-dimensional schematic diagram of the clamping and positioning mechanism of the present invention.

[0026] Figure 7 It is a three-dimensional schematic diagram of the working state of the overall structure of the present invention.

[0027] Figure 8 for Figure 7 A magnified view of the structure at A.

[0028] Fig. 9 It is a partial schematic diagram of the working state of the overall structure of the present invention.

[0029] Fig.10It is a three-dimensional schematic diagram of the working state of the clamping and positioning mechanism of the present invention.

[0030] In the figure: 1. base; 11. bracket; 111. gear ring 1; 12. electric push rod; 121. mounting frame; 13. control system; 2. turntable; 21. support; 22. slide groove; 3. digital micrometer; 31. measuring rod; 32. starting rod; 33. limit rod; 4. motor; 41. lever; 42. gear 1; 43. gear 2; 5. sleeve; 51. abutment block; 52. spring 1; 53. spring 2; 6. cam; 61. groove; 62. gear ring 2; 7. receiving frame; 71. spring 3; 72. connecting rod; 73. positioning rod; 9. bearing seat; 91. bearing shell; 92. flange end. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] See also Figure 1-Figure 10 The present invention provides a technical solution: a flange assembly height detection device for a sliding bearing, comprising a base 1 and a bearing seat 9, a bracket 11 is welded on the outer wall of the base 1, a bearing bush 91 is fixed in the bearing seat 9, and a flange end 92 is provided at the end of the bearing bush 91, and further comprising:

[0034] A circumferential measuring mechanism is used for performing multi-point position measurement along the circumferential direction of the end face of the flange end 92. The circumferential measuring mechanism is arranged on the base 1. The circumferential measuring mechanism includes a digital micrometer 3. A turntable 2 is rotatably plugged on the outer wall of the bracket 11. A support 21 is welded on the top outer wall of the turntable 2. A limit rod 33 is welded on the outer wall of the digital micrometer 3. The limit rod 33 is slidably plugged on the outer wall of the support 21. A matching measuring rod 31 is arranged on the digital micrometer 3. The end of the measuring rod 31 extends to the bottom of the turntable 2. A motor 4 is welded on the outer wall of the support 21. A gear 42 is welded on the main shaft end of the motor 4. The gear 42 is an incomplete gear. A gear ring 111 is welded on the outer wall of the bracket 11. The gear 42 is matched with the gear ring 111. A lever 41 is welded on the outer wall of the main shaft section of the motor 4 away from the gear 42. A starting lever 32 is welded on the outer wall of the measuring rod 31. The starting lever 32 is matched with the lever 41.

[0035] A radial floating mechanism is used to drive the circumferential measuring mechanism to float along the end surface diameter direction of the flange end 92, and the radial floating mechanism is arranged on the base 1;

[0036] and a clamping and positioning mechanism, used to clamp the bearing seat 9 and position the axis of the bearing seat 9;

[0037] A control system 13 is disposed on the outer wall of the base 1 , and the control system 13 is connected to the digital micrometer 3 via an electrical signal.

[0038] The above-mentioned circumferential measuring mechanism is further explained: when measuring, the motor 4 is started, and the motor 4 drives the lever 41, the gear 1 42 and the gear 2 43 to rotate. When the lever 41 rotates upward, the starting rod 32 is lifted, so that the starting rod 32 drives the measuring rod 31 to move upward, so that the measuring rod 31 is away from the bearing seat 9, and then the gear 1 42 is meshed with the gear ring 1 111, so that the turntable 2 starts to rotate, so that the turntable 2 can drive the measuring rod 31 of the digital micrometer 3 to rotate around the axis of the bearing seat 9, so as to realize the switching of the measuring point. Before the lever 41 is disengaged from the starter rod 32, the meshing stroke of the gear 42 and the gear ring 111 is completed, so that the turntable 2 stops rotating. When the lever 41 is disengaged from the starter rod 32, under the action of the spring 52, the starter rod 32 drives the measuring rod 31 to move downward, so that the measuring rod 31 abuts against the flange end 92. The measurement result is read by the digital micrometer 3 and input into the control system 13 for recording. This reciprocating process makes the turntable 2 rotate one circle, thereby achieving the effect of multi-point measurement of the flange end 92 and avoiding the randomness of the measurement result.

[0039] Specifically, the radial floating mechanism includes a sleeve 5, a slide groove 22 is provided on the outer wall of the turntable 2, the sleeve 5 is slidably inserted in the slide groove 22, a spring 2 53 is welded between the outer wall of the sleeve 5 and the outer wall of the slide groove 22, a cam 6 is rotatably inserted on the outer wall of the turntable 2, a gear 2 43 is welded on the outer wall of the main shaft of the motor 4, the gear 2 43 is an incomplete gear, a gear ring 2 62 is welded on the top outer wall of the cam 6, the gear ring 2 62 is matched with the gear 2 43, the sleeve 5 is slidably sleeved on the outer wall of the measuring rod 31, an abutment block 51 is welded on the top outer wall of the sleeve 5, a spring 1 52 is welded between the outer wall of the abutment block 51 and the outer wall of the starting rod 32, a plurality of grooves 61 are provided on the circumferential outer wall of the cam 6, the abutment block 51 is matched with the groove 61, and the distance between each groove 61 and the axis of the cam 6 is different.

[0040] In the initial state, the abutment block 51 abuts against the groove 61 farthest from the axis of the cam 6, so that the sleeve 5 drives the measuring rod 31 to move to the farthest point from the axis of the turntable 2, so that the measuring rod 31 can avoid the flange end 92, and then before measurement, the position of the measuring rod 31 can directly abut against the end wall of the bearing seat 9, which is convenient for zeroing the digital micrometer 3, so that the end face of the bearing seat 9 is the measurement reference surface.

[0041] The above-mentioned radial floating mechanism is further explained: when gear 1 42 is meshed with gear ring 1 111, gear 2 43 also rotates to a meshing state with gear ring 2 62, so that when the turntable 2 rotates, the cam 6 can rotate relative to the turntable 2, so that the cam 6 drives the groove 61 to rotate, and then the different grooves 61 are aligned with the abutment block 51. Under the action of spring 2 53, the abutment block 51 always maintains an abutment state with the cam 6, so that when the cam 6 rotates, the abutment block 51 can drive the sleeve 5 to float radially, so that the sleeve 5 drives the measuring rod 31 to float radially with a small stroke, and then the measuring point on the flange end 92 can float radially, so as to achieve radial floating while switching the measuring point in the circumferential direction, thereby increasing the randomness of the measuring point and further avoiding the randomness of the measurement result.

[0042] Specifically, the clamping and positioning mechanism includes an electric push rod 12, an electric push rod 12 is welded on the bottom outer wall of the base 1, a mounting frame 121 is welded on the outer wall of the output end of the electric push rod 12, a receiving frame 7 is slidably inserted on the outer wall of the mounting frame 121, the receiving frame 7 is coaxially distributed with the turntable 2, the receiving frame 7 is matched with the flange end 92, a spring 71 is welded between the outer wall of the receiving frame 7 and the outer wall of the mounting frame 121, a plurality of equidistant circumferentially distributed positioning rods 73 are slidably inserted on the outer wall of the mounting frame 121, the positioning rods 73 are matched with the inner diameter of the bearing shell 91 on the bearing seat 9, a plurality of equidistant circumferentially distributed connecting rods 72 are rotatably inserted on the top outer wall of the receiving frame 7, and the end of the connecting rod 72 away from the receiving frame 7 is rotatably inserted on the outer wall of the positioning rod 73.

[0043] In the initial state, the electric push rod 12 is retracted, and under the action of the spring 3 71, the receiving frame 7 moves upward, and the positioning rod 73 is pulled inward through the connecting rod 72.

[0044] The above-mentioned clamping and positioning mechanism is further explained: when measuring, the bearing seat 9 is sleeved on the positioning rod 73, and the bearing seat 9 is supported by the supporting frame 7. The gravity of the bearing seat 9 overcomes the elastic force of the spring three 71, so that the supporting frame 7 moves down and compresses the spring three 71. Under the action of the connecting rod 72, the positioning rod 73 is unfolded and abuts against the inner wall of the bearing seat 9, so as to achieve the effect of fixing the bearing seat 9. At the same time, the supporting effect of the positioning rod 73 on the inner wall of the bearing seat 9 is used to achieve the coaxial positioning of the bearing seat 9 and the turntable 2. The operation is simple and fast. After the positioning is completed, the electric push rod 12 is controlled to extend, so that the mounting frame 121 pushes the bearing seat 9 to move up, and makes the bearing seat 9 abut against the measuring rod 31. When the digital micrometer 3 is adjusted to zero, the motor 4 is started for measurement.

[0045] Supplementary explanation: This scheme uses the end face of the bearing seat 9 as a reference to measure the step height between the end face of the flange end 92 and the end face of the bearing seat 9. The factory thickness specification of the flange end 92 is a known quantity. If the flange end 92 fits tightly against the bearing seat 9, the measurement result should be the same as the thickness of the flange end 92. Compare the measurement result with the thickness of the flange end 92. If the difference is within a reasonable range, it means that the gap between the two is within a reasonable range. If it exceeds the range, it is a defective product.

[0046] The working principle and use process of the present invention are as follows: during measurement, the bearing seat 9 is sleeved on the positioning rod 73, and the bearing seat 9 presses down the receiving frame 7. Under the action of the clamping and positioning mechanism, the positioning rod 73 is unfolded and abuts against the inner wall of the bearing seat 9, so as to achieve the effect of fixing the bearing seat 9 and at the same time make the bearing seat 9 and the turntable 2 coaxially positioned. Then, the electric push rod 12 is started to extend, so that the mounting frame 121 drives the bearing seat 9 to approach the measuring rod 31. In the initial state, the abutment block 51 abuts against the groove 61 farthest from the axis of the cam 6, so that the measuring rod 31 can avoid the flange end 92 and abut against the end wall of the bearing seat 9. At this time, the digital micrometer 3 is adjusted to zero, so that the end wall of the bearing seat 9 is the measuring reference surface, and then the motor 4 is started. The motor 4 drives the lever 41, gear 1 42 and gear 2 43 to rotate. Under the action of the circular measuring mechanism, the lever 41 now lifts the measuring rod 31 upwards so that the measuring rod 31 is away from the bearing seat 9, and then the gear 1 42 drives the turntable 2 to rotate, so that the turntable 2 can drive the measuring rod 31 of the digital micrometer 3 to rotate around the axis of the bearing seat 9 to achieve the switching of the measuring point. At the same time, the gear 2 43 drives the cam 6 to rotate relative to the turntable 2. Under the action of the radial floating mechanism, the abutment block 51 can drive the sleeve 5 to float radially, so that the sleeve 5 drives the measuring rod 31 to float radially. When the lever 41 is disengaged from the starting rod 32, under the action of the spring 1 52, the starting rod 32 drives the measuring rod 31 to move downward, so that the measuring rod 31 abuts against the flange end 92, and the measurement result is read by the digital micrometer 3 and input into the control system 13 for recording, and so on and so forth, switching the measuring point in the circumferential direction while performing radial floating.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flange assembly height detection device for a sliding bearing, comprising a base (1) and a bearing seat (9), a bracket (11) being welded on the outer wall of the base (1), a bearing bush (91) being fixed inside the bearing seat (9), and a flange end (92) being provided at the end of the bearing bush (91), characterized in that: Also includes: A circumferential measuring mechanism is used for performing multi-point position measurement along the circumferential direction of the end face of a flange end (92), the circumferential measuring mechanism being arranged on a base (1), the circumferential measuring mechanism comprising a digital micrometer (3), a turntable (2) being rotatably plugged into the outer wall of the bracket (11), a support (21) being welded to the top outer wall of the turntable (2), a limit rod (33) being welded to the outer wall of the digital micrometer (3), the limit rod (33) being slidably plugged into the outer wall of the support (21), a matching measuring rod (31) being arranged on the digital micrometer (3), the measuring rod (31) The end of the support (21) extends to the bottom of the turntable (2); a motor (4) is welded on the outer wall of the support (21); a gear (42) is welded on the end of the main shaft of the motor (4); the gear (42) is an incomplete gear; a gear ring (111) is welded on the outer wall of the support (11); the gear (42) is matched with the gear ring (111); a lever (41) is welded on the outer wall of the main shaft section of the motor (4) away from the gear (42); a starter rod (32) is welded on the outer wall of the measuring rod (31); the starter rod (32) is matched with the lever (41); A radial floating mechanism, used for driving the circumferential measuring mechanism to float along the end surface diameter direction of the flange end (92), wherein the radial floating mechanism is arranged on the base (1); And a clamping and positioning mechanism is used to clamp the bearing seat (9) and simultaneously position the axis of the bearing seat (9).

2. The flange assembly height detection device for a sliding bearing according to claim 1, characterized in that: A control system (13) is arranged on the outer wall of the base (1), and the control system (13) is connected to the digital micrometer (3) via an electrical signal.

3. The flange assembly height detection device of a sliding bearing according to claim 1, characterized in that: The radial floating mechanism comprises a sliding sleeve (5), a sliding groove (22) is provided on the outer wall of the turntable (2), the sliding sleeve (5) is slidably inserted in the sliding groove (22), a spring 2 (53) is welded between the outer wall of the sliding sleeve (5) and the outer wall of the sliding groove (22), a cam (6) is rotatably inserted on the outer wall of the turntable (2), and a gear 2 (43) is welded on the outer wall of the main shaft of the motor (4).

4. The flange assembly height detection device for a sliding bearing according to claim 3, characterized in that: The second gear (43) is an incomplete gear. A second gear ring (62) is welded on the top outer wall of the cam (6). The second gear ring (62) is matched with the second gear (43). The sliding sleeve (5) is slidably mounted on the outer wall of the measuring rod (31).

5. The flange assembly height detection device of a sliding bearing according to claim 4, characterized in that: An abutment block (51) is welded on the top outer wall of the sliding sleeve (5), a spring (52) is welded between the outer wall of the abutment block (51) and the outer wall of the starting rod (32), a plurality of grooves (61) are provided on the circumferential outer wall of the cam (6), the abutment block (51) is matched with the grooves (61), and the distance between each groove (61) and the axis of the cam (6) is different.

6. The flange assembly height detection device of a sliding bearing according to claim 1, characterized in that: The clamping and positioning mechanism comprises an electric push rod (12), the electric push rod (12) is welded on the outer wall of the bottom of the base (1), a mounting frame (121) is welded on the outer wall of the output end of the electric push rod (12), a receiving frame (7) is slidably inserted on the outer wall of the mounting frame (121), the receiving frame (7) is coaxially distributed with the turntable (2), and the receiving frame (7) is adapted to the flange end (92).

7. The flange assembly height detection device of a sliding bearing according to claim 6, characterized in that: A spring three (71) is welded between the outer wall of the receiving frame (7) and the outer wall of the mounting frame (121), and a plurality of equidistantly distributed circumferentially positioning rods (73) are slidably inserted on the outer wall of the mounting frame (121), and the positioning rods (73) are adapted to the inner diameter of the bearing shell (91) on the bearing seat (9).

8. The flange assembly height detection device of a sliding bearing according to claim 7, characterized in that: A plurality of connecting rods (72) equidistantly distributed in a circumference are rotatably plugged on the top outer wall of the receiving frame (7), and one end of the connecting rod (72) away from the receiving frame (7) is rotatably plugged on the outer wall of the positioning rod (73).

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