CN220583763U - Tensioning wheel bearing durability test fixture assembly - Google Patents
Tensioning wheel bearing durability test fixture assembly Download PDFInfo
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- CN220583763U CN220583763U CN202322259580.3U CN202322259580U CN220583763U CN 220583763 U CN220583763 U CN 220583763U CN 202322259580 U CN202322259580 U CN 202322259580U CN 220583763 U CN220583763 U CN 220583763U
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Abstract
The utility model provides a tensioning wheel bearing durability test fixture assembly, and belongs to the technical field of machinery. It has solved the not good enough problem of current device practicality. The tensioning wheel bearing durability test fixture assembly comprises a frame and a fixture for positioning a bearing, wherein the frame comprises a support plate, the support plate is provided with through holes which penetrate through front and back, and two through holes are arranged in parallel left and right; a main shaft is horizontally arranged in the through hole in a rotating way, and two ends of the main shaft are fixedly connected with a belt pulley I; the bearing axis extends forwards and backwards, a clamp is arranged above each belt pulley I, the belt pulleys I corresponding to the positions and the bearings are arranged up and down in parallel, and the belt pulleys I and the bearings are connected through a belt I; a positioning plate is vertically arranged between each clamp and the supporting plate, and the clamps are arranged on the corresponding positioning plates; the locating plate upside is equipped with the driving piece that is used for driving the locating plate to go up and down, and every locating plate downside all is connected with the backup pad through tension sensor. The tensioning wheel bearing durability test fixture assembly is good in practicality.
Description
Technical Field
The utility model belongs to the technical field of machinery, and relates to a durability test tool assembly, in particular to a durability test tool assembly for a tensioning wheel bearing.
Background
The automobile tension wheel bearing is applied to the periphery of an engine and is generally in a high-temperature environment, but in winter, the temperature of a part of areas is lower, the low-temperature environment is started, the bearing is in an environment of tens of degrees below zero, and in order to ensure that the developed bearing is suitable for large temperature difference change, corresponding testing equipment is developed by people, such as a tension wheel bearing temperature-changing endurance test device (application number: 201820873410.0) disclosed by China patent library, and the tension wheel bearing temperature-changing endurance test device comprises a test box, wherein the test box adopts the high-temperature box and the low-temperature box; the test box internally mounted has action wheel and bearing group, and the action wheel passes through the belt with the bearing group to be connected, the bearing group includes five test bearings, and test bearing passes through test bearing frame to be installed inside the test box, test bearing uses the connecting rod to be symmetry axis symmetric distribution, is S type, and the belt wrap angle is 180 ℃, the bearing group includes two accompany test bearings, accompany test bearing through accompany test bearing frame to install in the test box inside, and pass through the belt with test bearing connects, accompany test bearing sets up test bearing' S outside.
The device is provided with the test components on two sides of the driving wheel, and can be used for testing two types of bearings with different sizes. However, because of numerous automobile types and numerous matched tensioning wheels, the device can only test two types of bearings at one time, and the practical requirements are not met, and the practicability is poor.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a tensioning wheel bearing durability test tool assembly with good practicability.
The aim of the utility model can be achieved by the following technical scheme: the tensioning wheel bearing durability test fixture assembly comprises a frame and a fixture for positioning a bearing, and is characterized in that the frame comprises a support plate which is vertically arranged, through holes which penetrate front and back are formed in the support plate, and two through holes are arranged in parallel left and right; a main shaft is horizontally arranged in each through hole in a rotating way, and two ends of the main shaft extend out of the through holes and are fixedly connected with a belt pulley I; the axis of the bearing extends forwards and backwards, a clamp is arranged above each belt pulley I, the belt pulleys I corresponding to the positions are arranged in parallel with the bearing up and down, and the belt pulleys I and the bearing are connected through a belt I; a positioning plate is vertically arranged between each clamp and the supporting plate, and the clamps are arranged on the corresponding positioning plates; the locating plate upside is equipped with the driving piece that is used for driving the locating plate to go up and down, and driving piece and locating plate quantity are the same and the position one-to-one, and the downside of every locating plate all is connected with the backup pad through tension sensor.
Clamp, locating plate, tension sensor, belt one, driving piece and belt pulley one constitute a set of test fixture, and this application all arranges two sets of test fixture in backup pad both sides promptly, and the bearing on four sets of clamps all is connected corresponding belt pulley one through independent belt, alright like this through changing the bearing of clamp type adaptation not unidimensional, makes this test fixture can satisfy four sections different size bearings at most and carries out the durability test, and the practicality is good.
In the tensioning wheel bearing durability test tool assembly, the motor is further arranged on the frame and drives the two main shafts to operate through the transmission structure. By adopting the design, the input of a driving source is reduced, and the cost is reduced.
In the tensioning wheel bearing durability test fixture assembly, the transmission structure comprises two belt pulleys II which are respectively fixed at the front ends of the two main shafts, a belt pulley III is fixed on a motor rotating shaft, and the belt pulley III and the two belt pulleys II are wound with the same belt II.
In another scheme, in the tensioning wheel bearing durability test fixture assembly, the transmission structure comprises a pinion gear and a main gear, wherein the pinion gears are respectively fixed at the front ends of the two main shafts, the main gear is meshed between the two pinion gears, and the main gear is fixed on the motor rotating shaft.
In the tensioning wheel bearing durability test fixture assembly, the positioning plate is connected with the supporting plate in a vertical sliding mode, so that accurate guiding is conducted on movement of the positioning plate, and tensioning degree of the first belt is accurately adjusted.
In the tensioning wheel bearing durability test fixture assembly, the driving piece is of a cylinder or an oil cylinder, a connecting rod is vertically arranged between the driving piece and the corresponding positioning plate, and two ends of the connecting rod are respectively connected with a piston rod of the corresponding driving piece and the corresponding positioning plate, so that the tensioning wheel bearing durability test fixture assembly has the advantages of being simple in structure, low in cost and the like. Naturally, the driving member may also be an electric push rod.
In the tensioning wheel bearing durability test fixture assembly, the upper end of the connecting rod is fixedly connected with the piston rod of the driving piece; the top of the positioning plate is horizontally fixed with a positioning block, a notch matched with the connecting rod vertically penetrates through the positioning block, and the lower end of the connecting rod is clamped into the notch; the outer wall of the lower end of the connecting rod is provided with an annular shaft shoulder and an annular convex part, the annular shaft shoulder and the annular convex part are respectively pressed at the top and the bottom of the positioning block, namely, the pull rod is connected with the positioning plate in a clamping notch mode, so that the assembly and the disassembly are convenient.
In the tensioning wheel bearing durability test fixture assembly, the notch consists of an upper notch and a lower notch which are coaxially arranged and are U-shaped, and the size of the lower notch is larger than that of the upper notch; the connecting rod outer wall and the annular convex part outer wall are both circumferential surfaces, and the annular convex part is clamped in the lower notch and is pressed on the bottom wall of the lower notch. By adopting the design, the connecting rod is clamped into the notch to guide, so that the assembly is convenient, the contact area between the connecting rod and the positioning block can be increased, and the positioning strength and stability of the connecting rod are improved.
In the tensioning wheel bearing durability test fixture assembly, the fixture is fixedly connected with the positioning plate through the horizontally arranged screws, threaded holes which are arranged in a penetrating mode and matched with the screws are densely distributed on the positioning plate, and the fixture is used for adapting to fixtures of different sizes and shapes, so that the practicability is better.
In the tensioning wheel bearing durability test tool assembly, the left side and the right side of the positioning plate are slidably arranged on the supporting plate through the guide rail sliding block structure.
Compared with the prior art, the tensioning wheel bearing durability test fixture assembly has the following advantages:
1. clamp, locating plate, tension sensor, belt one, driving piece and belt pulley one constitute a set of test fixture, and this application all arranges two sets of test fixture in backup pad both sides promptly, and the bearing on four sets of clamps all is connected corresponding belt pulley one through independent belt, alright like this through changing the bearing of clamp type adaptation not unidimensional, makes this test fixture can satisfy four sections different size bearings at most and carries out the durability test, and the practicality is good.
2. The notch comprises an upper notch and a lower notch for the annular convex part to be clamped in, and the upper notch and the lower notch are U-shaped, so that the connecting rod is clamped in the notch for guiding, the assembly is convenient, the contact area between the connecting rod and the positioning block can be increased, and the positioning strength and the stability of the connecting rod are improved.
Drawings
Fig. 1 is a schematic diagram of a front view structure of the tensioning wheel bearing durability test fixture assembly.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is a schematic view of the position structure of the positioning plate and the spindle.
Fig. 4 is a schematic view of the connection structure of the connecting rod and the positioning block.
In the figure, 1, a rack; 1a, a supporting plate; 2. a clamp; 2a, a supporting shaft; 2b, annular tabletting; 3. a bearing; 4. a main shaft; 5. a first belt pulley; 6. a first belt; 7. a positioning plate; 7a, a threaded hole; 8. a driving member; 9. a tension sensor; 10. a motor; 11. a second belt; 12. a connecting rod; 12a, an annular shaft shoulder; 12b, annular projections; 13. a positioning block; 13a, notch; 13a1, upper notch; 13a2, lower notch.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
Example 1
As shown in fig. 1 and 2, the tensioning wheel bearing durability test fixture assembly comprises a frame 1 and a fixture 2 for positioning a bearing 3. Wherein, frame 1 includes the backup pad 1a of vertical setting, and backup pad 1a is dull and stereotyped form. The fixture 2 comprises a support shaft 2a and an annular pressing sheet 2b coaxial with the support shaft 2a, wherein an annular flange is formed at one end of the support shaft 2a, a cylinder matched with the bearing 3 is formed at the other end of the support shaft 2a, and a bolt hole is axially formed in the cylinder; the bearing 3 is sleeved on the column body, the bolt rod part passes through the annular pressing piece 2b and is screwed into the bolt hole, the head part of the bolt is pressed on the annular pressing piece 2b, and two ends of the inner ring of the bearing 3 are respectively pressed on the end face of the supporting shaft 2a and the annular pressing piece 2b so as to stably position the bearing 3.
In particular the number of the elements,
as shown in fig. 1 to 3, the support plate 1a has two through holes extending in the front-rear direction, and the through holes are arranged side by side. A main shaft 4 is horizontally arranged in each through hole in a rotating mode, and two ends of the main shaft 4 extend out of the through holes and are fixedly connected with a belt pulley I5. The axis of the bearing 3 extends forwards and backwards, a clamp 2 is arranged above each belt pulley I5, the belt pulleys I5 corresponding to the positions and the bearing 3 are arranged in parallel up and down, and the belt pulleys I5 and the bearing 3 are connected through a belt I6; a positioning plate 7 is vertically arranged between each clamp 2 and the supporting plate 1a, and the clamps 2 are arranged on the corresponding positioning plates 7; the locating plate 7 upside is equipped with the driving piece 8 that is used for driving locating plate 7 to go up and down, and driving piece 8 and locating plate 7 quantity and position one-to-one are the same, and the downside of every locating plate 7 all is connected with backup pad 1a through tension sensor 9.
The anchor clamps 2, locating plate 7, tension sensor 9, belt one 6, driving piece 8 and belt pulley one 5 constitute a set of test fixture, namely this application all arranges two sets of test fixture in backup pad 1a both sides, and the bearing 3 on four sets of anchor clamps 2 all connects corresponding belt pulley one 5 through independent belt, alright like this through changing anchor clamps 2 type adaptation not unidimensional bearing 3, make this test fixture can satisfy four sections different sizes bearing 3 at most and carry out the durability test, and the practicality is good.
In the present embodiment of the present utility model, in the present embodiment,
the spindle 4 is installed as follows: the two through holes are horizontally fixed with positioning sleeves, the two positioning sleeves are respectively sleeved on the two main shafts 4, and the main shafts 4 are rotatably supported on the positioning sleeves through ball bearings.
The spindle 4 operates as follows: the frame 1 is also provided with a motor 10, and the motor 10 drives the two main shafts 4 to operate through a transmission structure. By adopting the design, the input of a driving source is reduced, and the cost is reduced.
The transmission structure is as follows: the transmission structure comprises two belt pulleys II which are respectively fixed at the front ends of the two main shafts 4, a belt pulley III is fixed on the rotating shaft of the motor 10, and the belt pulley III and the two belt pulleys II are wound with the same belt II 11.
The locating plate 7 is connected with the supporting plate 1a in a vertical sliding mode, so that accurate guiding is conducted on movement of the locating plate 7, and the tension of the first belt 6 is accurately adjusted. In actual products, the left and right sides of the positioning plate 7 are slidably disposed on the support plate 1a through a guide rail and slider structure. Naturally, the positioning plate 7 may also be slidably disposed on the support plate 1a by a chute guide block structure.
The type of the driving piece 8 is an air cylinder or an oil cylinder, a connecting rod 12 is vertically arranged between the driving piece 8 and the corresponding positioning plate 7, and two ends of the connecting rod 12 are respectively connected with a piston rod of the corresponding driving piece 8 and the corresponding positioning plate 7, so that the device has the advantages of simple structure, low cost and the like. Naturally, the driving member 8 may also be an electric push rod.
Wherein the upper end of the connecting rod 12 is fixedly connected with the piston rod of the driving piece 8, and preferably the upper end and the piston rod are connected through threads; the top of the positioning plate 7 is horizontally fixed with a positioning block 13, a notch 13a matched with the connecting rod 12 is vertically penetrated through the positioning block 13, and the lower end of the connecting rod 12 is clamped into the notch 13 a; an annular shaft shoulder 12a and an annular convex part 12b are formed on the outer wall of the lower end of the connecting rod 12, and the annular shaft shoulder 12a and the annular convex part 12b are respectively pressed at the top and the bottom of the positioning block 13, namely, the pull rod is connected with the positioning plate 7 in a clamping notch 13a mode, so that the assembly and the disassembly are convenient.
Further, as shown in fig. 4, the annular shoulder 12a presses against the top surface of the positioning block 13; the notch 13a consists of an upper notch 13a1 and a lower notch 13a2 which are coaxially arranged and are U-shaped, and the size of the lower notch 13a2 is larger than that of the upper notch 13a 1; the outer wall of the connecting rod 12 and the outer wall of the annular convex part 12b are both circumferential surfaces, and the annular convex part 12b is clamped in the lower notch 13a2 and is pressed on the bottom wall of the lower notch 13a 2. By adopting the design, the connecting rod 12 is clamped into the notch 13a for guiding, the assembly is convenient, the contact area between the connecting rod 12 and the positioning block 13 can be increased, and the positioning strength and stability of the connecting rod 12 are improved.
As shown in fig. 1 and 3, threaded holes 7a penetrating through the positioning plate 7 are densely distributed on the positioning plate for adapting to clamps 2 with different sizes, so that the practicability is better.
Example two
The structure and principle of the second embodiment are basically the same as those of the first embodiment, except that: the transmission structure comprises a pinion gear and a main gear, wherein the pinion gears are respectively fixed at the front ends of the two main shafts 4, the main gear is meshed between the two pinion gears, and the main gear is fixed on the rotating shaft of the motor 10.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (10)
1. The tensioning wheel bearing durability test fixture assembly comprises a frame (1) and a fixture (2) for positioning a bearing (3), and is characterized in that the frame (1) comprises a support plate (1 a) which is vertically arranged, the support plate (1 a) is provided with through holes which penetrate front and back, and the two through holes are arranged side by side; a main shaft (4) is horizontally arranged in each through hole in a rotating way, and two ends of the main shaft (4) extend out of the through holes and are fixedly connected with a belt pulley I (5); the axis of the bearing (3) extends forwards and backwards, a clamp (2) is arranged above each belt pulley I (5), the belt pulleys I (5) corresponding to the positions are arranged in parallel with the bearing (3) up and down, and the belt pulleys I (5) and the bearing are connected through a belt I (6); a positioning plate (7) is vertically arranged between each clamp (2) and the supporting plate (1 a), and the clamps (2) are arranged on the corresponding positioning plates (7); the locating plate (7) upside is equipped with driving piece (8) that are used for driving locating plate (7) to go up and down, and driving piece (8) and locating plate (7) quantity and position one-to-one are the same, and the downside of every locating plate (7) all is connected with backup pad (1 a) through tension sensor (9).
2. The tensioning wheel bearing durability test fixture assembly according to claim 1, wherein a motor (10) is further installed on the frame (1), and the motor (10) drives the two main shafts (4) to operate through a transmission structure.
3. The tensioning wheel bearing durability test fixture assembly according to claim 2, wherein the transmission structure comprises two belt pulleys II which are respectively fixed at the front ends of the two main shafts (4), a belt pulley III is fixed on a rotating shaft of the motor (10), and the belt pulley III and the two belt pulleys II are wound with the same belt II (11).
4. The tensioning wheel bearing durability test fixture assembly according to claim 2, wherein the transmission structure comprises a pinion gear and a main gear, wherein the pinion gears are respectively fixed at the front ends of the two main shafts (4), the main gear is meshed between the two pinion gears, and the main gear is fixed on a rotating shaft of the motor (10).
5. The tensioning wheel bearing durability test fixture assembly according to claim 1, wherein the positioning plate (7) is connected with the supporting plate (1 a) in an up-down sliding manner.
6. The tensioning wheel bearing durability test fixture assembly according to claim 5, wherein the driving piece (8) is of a cylinder or an oil cylinder, a connecting rod (12) is vertically arranged between the driving piece (8) and the corresponding positioning plate (7), and two ends of the connecting rod (12) are respectively connected with a piston rod of the corresponding driving piece (8) and the corresponding positioning plate (7).
7. The tension pulley bearing durability test tooling assembly according to claim 6, wherein the upper end of the connecting rod (12) is fixedly connected with the piston rod of the driving member (8); a positioning block (13) is horizontally fixed at the top of the positioning plate (7), a notch (13 a) matched with the connecting rod (12) is vertically penetrated through the positioning block (13), and the lower end of the connecting rod (12) is clamped into the notch (13 a); an annular shaft shoulder (12 a) and an annular convex part (12 b) are formed on the outer wall of the lower end of the connecting rod (12), and the annular shaft shoulder (12 a) and the annular convex part (12 b) are respectively pressed at the top and the bottom of the positioning block (13).
8. The tensioning wheel bearing durability test tooling assembly according to claim 7, wherein the notch (13 a) is composed of an upper notch (13 a 1) and a lower notch (13 a 2) which are coaxially arranged and are all in a U shape, and the size of the lower notch (13 a 2) is larger than the size of the upper notch (13 a 1); the outer wall of the connecting rod (12) and the outer wall of the annular convex part (12 b) are both circumferential surfaces, and the annular convex part (12 b) is clamped in the lower notch (13 a 2) and is pressed on the bottom wall of the lower notch (13 a 2).
9. The tensioning wheel bearing durability test fixture assembly according to claim 1, wherein the fixture (2) is fixedly connected with the positioning plate (7) through horizontally arranged screws, and threaded holes (7 a) which penetrate through the positioning plate (7) front and back and are matched with the screws are densely distributed on the positioning plate.
10. The tension pulley bearing durability test tooling assembly according to claim 5, wherein the left and right sides of the positioning plate (7) are slidably disposed on the support plate (1 a) through a guide rail slider structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259580.3U CN220583763U (en) | 2023-08-22 | 2023-08-22 | Tensioning wheel bearing durability test fixture assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259580.3U CN220583763U (en) | 2023-08-22 | 2023-08-22 | Tensioning wheel bearing durability test fixture assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220583763U true CN220583763U (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322259580.3U Active CN220583763U (en) | 2023-08-22 | 2023-08-22 | Tensioning wheel bearing durability test fixture assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220583763U (en) |
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2023
- 2023-08-22 CN CN202322259580.3U patent/CN220583763U/en active Active
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