Angular contact ball bearing clearance measuring device

Abstract

The utility model discloses an angular contact ball bearing clearance measuring device, and relates to the technical field of bearing parameter measurement. The device comprises a supporting base, a fixing assembly, a measuring assembly and a power driving assembly, the fixing assembly comprises an inner ring fixing plate, the inner ring fixing plate is connected with the supporting base through a first connecting rod, a bearing set is placed on the top of the inner ring fixing plate, and a fixing rod is rotationally arranged on the top of the inner ring fixing plate; protruding wheels are fixedly arranged on the circumferential side face of the fixing rod, the measuring assembly is installed on the top of the supporting base and comprises a dial indicator, the dial indicator is arranged above the bearing set, the power driving assembly comprises symmetrically-arranged first bevel gears, and a second connecting rod is fixedly arranged between the two first bevel gears. According to the utility model, through the specific structural design of the supporting base, the fixing assembly, the measuring assembly and the power driving assembly, the accuracy of the clearance distance measurement of the angular contact ball bearing is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing parameter measurement, and particularly relates to a measuring device for angular contact ball bearing clearance. Background Technique

[0002] The angular contact ball bearing has a relatively high limiting speed, can bear radial load and axial load at the same time, and can also bear pure axial load. A single-row angular contact ball bearing can only bear axial load in one direction, so it is generally installed in pairs and widely used in mechanical transmission equipment.

[0003] The existing method for measuring the axial clearance of angular contact ball bearings is generally to sleeved the bearing set on the connecting shaft, fix the outer ring and then displace the inner ring by prying with a crowbar. The difference between the two extreme displacements of the inner ring is the axial clearance of the angular contact ball bearing. When measuring by this method, a certain force needs to be controlled when prying with the crowbar. The clearance distance of the angular contact ball bearing cannot be accurately measured only by manual operation. At the same time, the outer ring is easy to loosen when prying with the crowbar, which greatly reduces the measurement efficiency. For this reason, we provide a measuring device for angular contact ball bearing clearance to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a measuring device for angular contact ball bearing clearance. Through the specific structural design of the support base, fixing component, measuring component and power driving component, the problems of inaccurate measurement of the clearance distance of the existing angular contact ball bearing and low measurement efficiency are solved.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a measuring device for angular contact ball bearing clearance, including a support base, a fixing component, a measuring component and a power driving component. The support base is installed on an external frame. The fixing component is installed above the support base. The fixing component includes an inner ring fixing plate. The inner ring fixing plate is connected to the support base through a first connecting rod. A bearing set is placed on the top of the inner ring fixing plate. A fixing rod is rotatably arranged on the top of the inner ring fixing plate. A protrusion wheel is fixedly arranged on the circumferential side of the fixing rod. The fixing rod is coaxially connected with the bearing set. The measuring component is installed on the top of the support base. The measuring component includes a dial indicator. The dial indicator is arranged above the bearing set. The power driving component is installed above the support base. The power driving component includes symmetrically arranged first bevel gears. A second connecting rod is fixedly arranged between the two first bevel gears.

[0007] The present utility model is further configured such that a plurality of connecting plates are fixedly arranged on the top of the support base, two of the first bevel gears are rotatably arranged on one side of the corresponding connecting plates, a first motor is mounted on the surface of the connecting plate where one of the first bevel gears is located, and a fixed connection is provided between the output end of the first motor and the second connecting rod.

[0008] The present utility model is further configured such that a limiting plate is fixedly arranged on the top of the connecting plate, two U-shaped seats are fixedly arranged on the top of the limiting plate, two limiting rods are fixedly arranged on the top of the limiting plate, a fixed seat is fixedly arranged on the top of the support base, and the fixing assembly further includes an outer ring fixing plate, and the outer ring fixing plate is located above the limiting plate.

[0009] The present utility model is further configured such that the outer ring fixing plate is in sliding fit with the limiting rod, an annular opening is formed on the surface of the outer ring fixing plate, the inner ring fixing plate is located inside the annular opening, a positioning plate is fixedly arranged at the bottom of the outer ring fixing plate, and a moving plate is fixedly arranged at the bottom of the positioning plate.

[0010] The present utility model is further configured such that a second motor is mounted on the top of the limiting plate, a fixed connection is provided between the output end of the second motor and the fixed rod, a disc is rotatably arranged at the top of the fixed rod, a connection is provided between the disc and the inner ring fixing plate through a connecting member, and a plurality of elastic reset members are fixedly arranged on the circumferential side of the disc.

[0011] The present utility model is further configured such that a positioning member corresponding to the elastic reset member is slidably arranged on the top of the inner ring fixing plate, an ear plate is fixedly arranged on one side of the positioning member, a fixed connection is provided between the ear plate and the elastic reset member, and the ear plate is in fit with the corresponding protruding part of the protruding wheel.

[0012] The present utility model is further configured such that the measuring assembly further includes a cylinder, the cylinder is mounted on the top of the fixed seat, a linkage rod is fixedly arranged at the output end of the cylinder, and one end of the linkage rod is connected to a dial indicator.

[0013] The present utility model is further configured such that a positioning threaded rod is rotatably arranged inside the U-shaped seat, the positioning threaded rod penetrates below the limiting plate and is fixedly connected to a second bevel gear, the first bevel gear is meshed with the corresponding second bevel gear, and the positioning threaded rod is in threaded fit with the moving plate.

[0014] The present utility model has the following beneficial effects:

[0015] 1. The utility model drives the fixed rod to rotate through the second motor. At this time, the protruding wheel rotates, causing the ear plate to move along the inclined panel from the starting part towards the end part. Under the thrust, each positioning member moves towards the inner ring of the bearing group, and the elastic reset member is stretched. When the stop block fits with the ear plate, the inner ring of the bearing group is completely fixed, making the measurement result of the dial indicator more accurate.

[0016] 2. The utility model drives the second connecting rod to rotate by driving the first motor. The two first bevel gears rotate synchronously to drive the second bevel gear to rotate. The two positioning threaded rods rotate synchronously to drive the moving plate to move. The positioning plate moves synchronously to drive the outer ring fixing plate to move. At this time, the bearing group moves downward under its own gravity. When the bearing group stops moving, the dial indicator can measure the moving distance of the outer ring. At this time, the moving distance of the outer ring is the clearance spacing of the bearing group. This measurement method can realize the automatic movement of the outer ring and improve the measurement efficiency of the clearance spacing.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a structural schematic diagram of an angular contact ball bearing clearance measuring device.

[0020] Figure 2 It is Figure 1 the front view of the structure.

[0021] Figure 3 It is Figure 1 the partial structural schematic diagram.

[0022] Figure 4 It is Figure 3 the structural schematic diagram from another angle.

[0023] Figure 5 It is Figure 4 the top view of the structure.

[0024] Figure 6 It is Figure 4 the front view of the structure.

[0025] Figure 7 It is the cooperation relationship diagram of the support base and the measurement component in the present utility model.

[0026] Figure 8 is Figure 7 the left structural view.

[0027] Figure 9 is Figure 7 the front structural view.

[0028] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0029] 1 - support base, 101 - connecting plate, 102 - first motor, 103 - limiting plate, 104 - U - shaped seat, 105 - limiting rod, 106 - fixing seat, 2 - fixing component, 201 - inner ring fixing plate, 202 - fixing rod, 203 - protruding wheel, 204 - outer ring fixing plate, 205 - annular opening, 206 - positioning plate, 207 - moving plate, 208 - second motor, 209 - disc, 210 - connecting piece, 211 - elastic resetting piece, 212 - positioning piece, 213 - ear plate, 3 - bearing group, 4 - measuring component, 401 - dial indicator, 402 - cylinder, 403 - linkage rod, 5 - power driving component, 501 - first bevel gear, 502 - second connecting rod, 503 - positioning threaded rod, 504 - second bevel gear. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0031] For specific embodiment one, please refer to Figures 1-9 , the present utility model is an angular contact ball bearing clearance measuring device, including a support base 1, a fixing component 2, a measuring component 4, and a power driving component 5. The support base 1 is installed on an external frame, the fixing component 2 is installed above the support base 1. The fixing component 2 includes an inner ring fixing plate 201, and the inner ring fixing plate 201 is connected to the support base 1 through a first connecting rod. A bearing group 3 is placed on the top of the inner ring fixing plate 201. A fixing rod 202 is rotatably arranged on the top of the inner ring fixing plate 201. A protruding wheel 203 is fixedly arranged on the circumferential side of the fixing rod 202. The fixing rod 202 is coaxially connected to the bearing group 3. The measuring component 4 is installed on the top of the support base 1. The measuring component 4 includes a dial indicator 401, and the dial indicator 401 is arranged above the bearing group 3. The power driving component 5 is installed above the support base 1. The power driving component 5 includes symmetrically arranged first bevel gears 501, and a second connecting rod 502 is fixedly arranged between the two first bevel gears 501.

[0032] Specifically, a number of connecting plates 101 are fixedly arranged on the top of the support base 1. Two first bevel gears 501 are rotatably arranged on one side of the corresponding connecting plates 101. A first motor 102 is installed on the surface of the connecting plate 101 where one of the first bevel gears 501 is located. The output end of the first motor 102 is fixedly connected to the second connecting rod 502.

[0033] Furthermore, a limiting plate 103 is fixedly arranged on the top of the connecting plate 101. Two U-shaped seats 104 are fixedly arranged on the top of the limiting plate 103. Two limiting rods 105 are fixedly arranged on the top of the limiting plate 103. A fixed seat 106 is fixedly arranged on the top of the support base 1. The fixing component 2 further includes an outer ring fixing plate 204, and the shown outer ring fixing plate 204 is located above the limiting plate 103.

[0034] The operation process of this embodiment is as follows: In the initial state, the outer ring fixing plate 204 is flush with the inner ring fixing plate 201. Subsequently, the bearing group 3 is placed on the top of the inner ring fixing plate 201. At this time, the inner ring of the bearing group 3 is on the top of the inner ring fixing plate 201, and the outer ring of the bearing group 3 is on the top of the outer ring fixing plate 204. Subsequently, the position of the inner ring of the bearing group 3 is fixed by the fixing component 2. After the fixing is completed, the position of the dial indicator 401 is adjusted so that the needle of the dial indicator 401 is aligned above the fixing rod 202 (the pointer is flush with the position above the bearing group 3). At this time, the parameters of the dial indicator 401 are adjusted so that the pointer of the dial indicator 401 is at the 0 position. Subsequently, the outer ring fixing plate 204 is controlled to move downward by the power driving component 5. At this time, the outer ring of the bearing group 3 moves downward under its own gravity, and the dial indicator 401 can continuously measure the downward spacing of the outer ring. When the outer ring of the bearing group 3 stops moving, the moving distance of the outer ring is the clearance spacing of the bearing group 3, and the dial indicator 401 completes the measurement. At this time, the data measured by the dial indicator 401 is recorded as the clearance spacing of the bearing group 3.

[0035] Specific embodiment two, on the basis of specific embodiment one, the outer ring fixing plate 204 is slidably matched with the limiting rod 105. An annular opening 205 is formed on the surface of the outer ring fixing plate 204. The inner ring fixing plate 201 is located inside the annular opening 205. A positioning plate 206 is fixedly arranged at the bottom of the outer ring fixing plate 204. A moving plate 207 is fixedly arranged at the bottom of the positioning plate 206.

[0036] Specifically, a second motor 208 is installed on the top of the limiting plate 103. The output end of the second motor 208 is fixedly connected to the fixing rod 202. A disc 209 is rotatably arranged at the top of the fixing rod 202. The disc 209 is connected to the inner ring fixing plate 201 through a connecting member 210 (the disc 209 and the connecting member 21 can be detached from the top of the fixing rod 202). A number of elastic reset members 211 are fixedly arranged on the circumferential side of the disc 209.

[0037] Further, a positioning member 212 corresponding to the elastic reset member 211 is slidably arranged on the top of the inner ring fixing plate 201. An ear plate 213 is fixedly arranged on one side of the positioning member. A fixed connection is established between the ear plate 213 and the elastic reset member 211. The protruding part of the ear plate 213 is in contact with the corresponding protruding part of the protruding wheel 203 (the protruding part of the protruding wheel 203 is set as an inclined panel corresponding to the positioning member 212, and a stop block is arranged at the end of the inclined panel. When the ear plate 213 moves along the inclined panel to the end, the stop block is in contact with the ear plate 213. For details, see the appendix Figure 5 shown).

[0038] The operation process of this embodiment is as follows: In the initial state, the ear plate 213 is at the starting part of the corresponding inclined panel (for details, see the appendix Figure 5 shown). Each positioning member 212 is at the position closest to the fixed rod 202. When the bearing group 3 is placed on the inner ring fixing plate 201, the second motor 208 is driven to drive the fixed rod 202 to rotate. At this time, the protruding wheel 203 rotates, causing the ear plate 213 to move along the inclined panel from the starting part towards the end. Under the thrust, each positioning member 212 moves towards the inner ring of the bearing group 3, and the elastic reset member 211 is stretched. When the stop block is in contact with the ear plate 213, the inner ring of the bearing group 3 is completely fixed. At this time, the clearance spacing can be measured by the measuring component 4. When it is necessary to replace the bearing group 3 for measurement after the clearance spacing measurement is completed, the second motor 208 can be controlled to rotate in the reverse direction to drive the fixed rod 202 to rotate in the reverse direction. At this time, under the action of the elastic reset member 211, the protruding wheel 203 rotates, causing the ear plate 213 to move along the inclined panel from the end towards the starting part, and each positioning member 212 moves away from the inner ring of the bearing group 3 until the inner ring of the bearing group 3 is released from fixation. Then, a new bearing group 3 can be replaced for measurement.

[0039] Specific Embodiment 3, on the basis of Specific Embodiment 1 and Specific Embodiment 2, the measuring component 4 further includes a cylinder 402. The cylinder 402 is installed on the top of the fixed seat 106. A linkage rod 403 is fixedly arranged at the output end of the cylinder 402. One end of the linkage rod 403 is connected to the dial indicator 401. When the bearing group 3 needs to measure the spacing, the cylinder 402 is controlled to drive the dial indicator 401 to move downward until the pointer of the dial indicator 401 is closely attached to the top of the disc 209.

[0040] Specifically, a positioning threaded rod 503 is rotatably arranged inside the U-shaped seat 104. The positioning threaded rod 503 penetrates below the limiting plate 103 and is fixedly connected to a second bevel gear 504. The first bevel gear 501 meshes with the corresponding second bevel gear 504. The positioning threaded rod 503 is in threaded cooperation with the moving plate 207.

[0041] The operation process of this embodiment is as follows: In the initial state, the outer ring fixing plate 204 is flush with the inner ring fixing plate 201. After the initial position of the bearing set 3 is measured, the first motor 102 is driven to drive the second connecting rod 502 to rotate. The two first bevel gears 501 rotate synchronously to drive the second bevel gear 504 to rotate. The two positioning threaded rods 503 rotate synchronously to drive the moving plate 207 to move (as Figure 6 described, control the moving plate 207 to move downward), and the positioning plate 206 moves synchronously to drive the outer ring fixing plate 204. At this time, the bearing set 3 moves downward under its own gravity until the bearing set 3 stops moving, and then the dial indicator 401 can measure the moving distance of the outer ring. The moving distance of the outer ring is the clearance spacing of the bearing set 3.

[0042] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An angular contact ball bearing clearance measuring device, characterized in that, Including: A support base (1), the support base (1) being installed on an external frame; A fixing component (2), the fixing component (2) being installed above the support base (1), the fixing component (2) including an inner ring fixing plate (201), the inner ring fixing plate (201) being connected to the support base (1) by a first connecting rod, a bearing group (3) being placed on the top of the inner ring fixing plate (201), a fixing rod (202) being rotatably arranged on the top of the inner ring fixing plate (201), a protrusion wheel (203) being fixedly arranged on the circumferential surface of the fixing rod (202), and the fixing rod (202) being coaxially connected to the bearing group (3); A measuring component (4), the measuring component (4) being installed on the top of the support base (1), the measuring component (4) including a dial indicator (401), the dial indicator (401) being arranged above the bearing group (3); And a power driving component (5), the power driving component (5) being installed above the support base (1), the power driving component (5) including symmetrically arranged first bevel gears (501), a second connecting rod (502) being fixedly arranged between the two first bevel gears (501).

2. The angular contact ball bearing clearance measuring device according to claim 1, wherein A plurality of connecting plates (101) are fixedly arranged on the top of the support base (1), the two first bevel gears (501) are rotatably arranged on one side of the corresponding connecting plates (101), a first motor (102) is installed on the surface of the connecting plate (101) where one of the first bevel gears (501) is located, and the output end of the first motor (102) is fixedly connected to the second connecting rod (502).

3. The angular contact ball bearing clearance measuring device according to claim 2, characterized in that, A limiting plate (103) is fixedly arranged on the top of the connecting plate (101), two U-shaped seats (104) are fixedly arranged on the top of the limiting plate (103), two limiting rods (105) are fixedly arranged on the top of the limiting plate (103), a fixing seat (106) is fixedly arranged on the top of the support base (1), and the fixing component (2) further includes an outer ring fixing plate (204), and the outer ring fixing plate (204) is located above the limiting plate (103).

4. The angular contact ball bearing clearance measuring device according to claim 3, characterized in that, The outer ring fixing plate (204) is slidably matched with the limiting rods (105), an annular opening (205) is formed on the surface of the outer ring fixing plate (204), the inner ring fixing plate (201) is located inside the annular opening (205), a positioning plate (206) is fixedly arranged at the bottom of the outer ring fixing plate (204), and a moving plate (207) is fixedly arranged at the bottom of the positioning plate (206).

5. The angular contact ball bearing clearance measuring device according to claim 4, characterized in that, A second motor (208) is installed on the top of the limiting plate (103), the output end of the second motor (208) is fixedly connected to the fixing rod (202), a disc (209) is rotatably arranged at the top of the fixing rod (202), the disc (209) is connected to the inner ring fixing plate (201) by a connecting member (210), and a plurality of elastic reset members (211) are fixedly arranged on the circumferential surface of the disc (209).

6. The angular contact ball bearing clearance measuring device according to claim 5, characterized in that, A positioning member (212) corresponding to the elastic reset member (211) is slidably arranged on the top of the inner ring fixing plate (201). An ear plate (213) is fixedly arranged on one side of the positioning member. A fixed connection is established between the ear plate (213) and the elastic reset member (211). The ear plate (213) is attached to the corresponding protruding part of the protruding wheel (203).

7. The angular contact ball bearing clearance measuring device according to claim 6, characterized in that, The measuring assembly (4) further includes a cylinder (402). The cylinder (402) is installed on the top of the fixed seat (106). A linkage rod (403) is fixedly arranged at the output end of the cylinder (402). One end of the linkage rod (403) is connected to the dial indicator (401).

8. The angular contact ball bearing clearance measuring device according to claim 7, characterized in that A positioning threaded rod (503) is rotatably arranged inside the U-shaped seat (104). The positioning threaded rod (503) penetrates below the limiting plate (103) and is fixedly connected with a second bevel gear (504). The first bevel gear (501) meshes with the corresponding second bevel gear (504). A threaded fit is established between the positioning threaded rod (503) and the moving plate (207).

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