CN215910104U - Sprocket endurance test rack - Google Patents
Sprocket endurance test rack Download PDFInfo
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- CN215910104U CN215910104U CN202121434833.0U CN202121434833U CN215910104U CN 215910104 U CN215910104 U CN 215910104U CN 202121434833 U CN202121434833 U CN 202121434833U CN 215910104 U CN215910104 U CN 215910104U
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- chain
- sprocket
- chain wheel
- sleeve
- assembly
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000004088 simulation Methods 0.000 claims abstract description 69
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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Abstract
The utility model discloses a chain wheel durability test bed, which applies axial load to a chain wheel through an axial load loading assembly, a chain simulation assembly simulates the chain to drive and connect the chain wheel, and a radial load loading assembly applies tensile force to the chain simulation assembly, so that the chain simulation assembly applies radial load to the chain wheel, axial and radial alternating load is applied to the chain wheel, and alternating load simulation of the chain wheel in a rotating state under the actual working condition is simulated. The chain wheel durability test bench provided by the utility model can effectively simulate the running state of the chain wheel under the actual working condition, and applies the chain force simulating the random alternation of the actual working condition to the chain wheel, so that the axial and radial alternating loads borne by the chain wheel in the durability test are more fit with the actual scene.
Description
Technical Field
The utility model belongs to the technical field of chain wheel testing equipment, and particularly relates to a chain wheel durability test bench.
Background
With the development of the coal mining industry, the scraper becomes the first conveying equipment after coal in a mine is collected, and the chain wheel serving as a main part of the scraper becomes one of main indexes of the performance of the scraper. Because the operational environment who scrapes the trigger is abominable, consequently the sprocket will bear huge radial random alternating load effect when the rotation, can lead to the sprocket oil blanket can accelerated wear or damage, and then leads to the sprocket oil leak, and consequently, the sprocket test bench tests to the durability of sprocket and has the significance.
And the sprocket test bench among the prior art generally adopts the tight hydro-cylinder in top to exert invariable tight tension to the chain of being connected with the sprocket drive, can't exert the chain power of the random alternation of simulation operating mode to the sprocket, radial force that the sprocket can't receive promptly, consequently, the sprocket test bench among the prior art can't be applicable to the sprocket endurance test, more can't realize accelerating the endurance test to the sprocket.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a chain wheel durability test bench, which aims to solve the problem that the chain wheel durability test bench in the prior art cannot apply chain force simulating random alternation of actual working conditions to a chain wheel.
In order to realize the technical purpose, the utility model is realized according to the following technical scheme:
a sprocket durability test stand, comprising:
the chain wheel bracket is used for mounting a chain wheel to be tested;
the chain simulation assembly is arranged to be connected with the chain wheel and used for simulating the transmission connection of a chain to the chain wheel;
an axial load loading assembly arranged in driving connection with the sprocket and used for applying an axial load to the sprocket;
and the radial load loading assembly is connected with the chain simulation assembly and is used for applying tension to the chain simulation assembly so that the chain simulation assembly applies radial load to the chain wheel.
Further, the chain simulation assembly comprises:
the chain simulation bracket is connected with the radial load loading assembly;
the sleeve is axially and rotatably arranged on the chain simulation support, and the sleeve is coaxially and detachably connected with the chain wheel;
and the roller group is arranged on the chain simulation bracket and is close to the sleeve, and the rollers on the roller group can roll on the sleeve.
Furthermore, a first convex part is arranged on the side part of the chain wheel, a second convex part is arranged on the inner wall of the sleeve, and the sleeve is meshed with the second convex part through the first convex part and is coaxially and fixedly connected with the chain wheel.
Furthermore, the first end portion of the chain simulation support is movably connected with the chain wheel support, the first end portion of the chain simulation support is further connected with the radial load loading assembly, and the roller set is arranged on one side, far away from the chain simulation assembly, of the sleeve.
Furthermore, the roller group comprises two rollers, and the two rollers are symmetrically arranged relative to the extension line of the force application direction of the radial load loading assembly.
Further, the radial load loading assembly includes:
a cylinder support;
and the cylinder barrel of the oil cylinder is connected with the oil cylinder support, the piston rod of the oil cylinder is connected with the chain simulation support, and the central axis of the piston rod is on the same straight line with a radial axis on the sleeve.
Furthermore, the oil cylinder and the sleeve are both horizontally arranged, and the height of the central axis of the piston rod is the same as that of the central axis of the sleeve.
Further, the oil cylinder is hinged to the oil cylinder support, and the piston rod is hinged to the chain simulation support.
Further, the axial load loading assembly comprises:
the rotating shaft is axially connected with the chain wheel;
and the motor is in driving connection with the rotating shaft and is used for driving the rotating shaft to axially rotate.
Further, the sprocket support includes:
a support frame;
the two connecting plates are oppositely arranged on the supporting frame, and the chain wheel sequentially penetrates through the two connecting plates and then is respectively connected with one connecting plate in an axial rotating manner.
According to the chain wheel durability test bench provided by the utility model, the axial load is applied to the chain wheel through the axial load loading assembly, the chain simulation assembly simulates the chain to be in transmission connection with the chain wheel, and the radial load loading assembly applies the tension to the chain simulation assembly, so that the chain simulation assembly applies the radial load to the chain wheel, the axial and radial alternating loads are applied to the chain wheel, and the alternating load simulation of the rotating state of the chain wheel under the actual working condition is simulated.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of a sprocket durability test stand according to an exemplary embodiment of the present invention;
FIG. 2 is a front view of a sprocket durability test stand according to an exemplary embodiment of the present invention;
FIG. 3 is a top view of a sprocket durability test stand according to an exemplary embodiment of the present invention;
FIG. 4 is a cross-sectional view at B-B of FIG. 2;
fig. 5 is a cross-sectional view at C-C of fig. 2.
In the figure:
1-sprocket support, 101-support frame, 102-connecting plate.
2-chain simulation component, 201-chain simulation support, 202-sleeve, 203-roller group;
3-axial load loading component, 301-rotating shaft, 302-motor, 303-speed reducer;
4-radial load loading assembly, 401-oil cylinder bracket, 402-oil cylinder;
5-a chain wheel;
6-base.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The utility model provides a chain wheel endurance test bench, which is shown in figures 1 to 3 and comprises a chain wheel bracket 1, a chain simulation assembly 2, an axial load loading assembly 3 and a radial load loading assembly 4, wherein the chain wheel bracket 1 is used for mounting a chain wheel 5 to be tested; the chain simulation assembly 2 is connected with the chain wheel 5 and used for simulating the transmission connection of a chain to the chain wheel 5; the axial load loading assembly 3 is arranged to be in driving connection with the sprocket wheel 5 and is used for applying an axial load to the sprocket wheel 5; the radial load loading assembly 4 is connected to the chain simulating assembly 2 and is used to apply a pulling force to the chain simulating assembly 2 so that the chain simulating assembly 2 applies a radial load to the sprocket 5.
According to the chain wheel durability test bench provided by the utility model, the axial load is applied to the chain wheel 5 through the axial load loading assembly 3, the chain simulation assembly 2 simulates a chain to be in transmission connection with the chain wheel 5, and the radial load loading assembly 4 applies a tensile force to the chain simulation assembly 2, so that the chain simulation assembly 2 applies a radial load to the chain wheel 5, the chain wheel 5 is applied with axial and radial alternating loads, and the alternating load simulation of the rotation state of the chain wheel 5 under the actual working condition operation is simulated.
In some embodiments, referring to fig. 4 to 5, the chain simulation assembly 2 comprises a chain simulation bracket 201, a sleeve 202 and a roller set 203, the chain simulation bracket 201 being connected with the radial load loading assembly 4; the sleeve 202 is axially and rotatably arranged on the chain simulation bracket 201, and the sleeve 202 is coaxially and detachably connected with the chain wheel 5; the roller set 203 is arranged on the chain simulation bracket 201 and close to the sleeve 202, and the rollers on the roller set 203 can roll on the sleeve 202. In this embodiment, the sleeve 202 is sleeved on the sprocket 5 and coaxially fixed with the sprocket 5, so that the sleeve 202 can rotate along with the axial rotation of the sprocket 5, and when the sleeve 202 rotates, the roller set 203 arranged on the chain simulation support 201 rolls on the sleeve 202, therefore, after the sleeve 202 and the chain ring of the sprocket 5 are connected, the transmission connection of the chain to the sprocket 5 can be simulated by the transmission matching of the sleeve 202 and the roller set 203 of the sprocket 5, and then the radial load can be applied to the sprocket 5 through the sleeve 202 and the roller set 203 by applying a pulling force to the chain simulation support 201 provided with the sleeve 202 through the radial load loading assembly 4.
In some embodiments, the side portion of the sprocket 5 is provided with a first protrusion, the inner wall of the sleeve 202 is provided with a second protrusion, and the sleeve 202 is coaxially and fixedly connected with the sprocket 5 by meshing the first protrusion and the second protrusion. Sprocket 5 is through first convex part and second convex part meshing and sleeve 202 fixed connection, can guarantee sprocket 5 and sleeve 202 and be connected stably the time, guarantees that sleeve 202 rotates along with sprocket 5's rotation and axial to make the chain that the transmission cooperation between sleeve 202 and the sprocket 5 simulated to laminate actual scene more to sprocket 5's transmission.
In other embodiments, the first end of the chain simulation bracket 201 is movably connected to the sprocket bracket 1, the first end of the chain simulation bracket 201 is also connected to the radial load loading assembly 4, and the roller set 203 is disposed on the side of the sleeve 202 away from the chain simulation assembly 2. Because the first end of the chain simulation support 201 is movably connected with the sprocket support 1, the radial load loading assembly 4 connected with the first end of the chain simulation support 201 can apply force to the chain simulation support 201, so that the chain simulation support 201 can move on the sprocket support 1 under the driving of the thrust or tension of the radial load loading assembly 4, and meanwhile, the roller set 203 is arranged close to one side of the sleeve 202 away from the chain simulation assembly 2, so that when the radial load loading assembly 4 applies force to the chain simulation support 201, the roller set 203 applies another set of radial load to the sleeve 202 at one side of the sleeve 202 away from the chain simulation assembly 2, and the radial load applied to the sprocket 5 by the chain simulated by the sleeve 202 and the roller set 203 is more suitable for an actual scene.
Further, the roller set 203 includes two rollers, and the two rollers are symmetrically disposed with respect to the extension line of the force application direction of the radial load loading assembly 4. In this embodiment, the two rollers are symmetrically arranged relative to the extension line of the force application direction of the radial load application assembly 4, so that when the radial load application assembly 4 applies force to the chain simulation support 201, the radial load applied to the chain wheel 5 by the chain can be simulated, and then the radial load applied to the chain wheel 5 by the chain simulation assembly 2 is more fit to an actual scene.
In still other embodiments, the radial load loading assembly 4 comprises a cylinder bracket 401 and a cylinder 402, the cylinder 402 has a cylinder barrel connected to the cylinder bracket 401, the piston rod of the cylinder 402 is connected to the chain simulation bracket 201, and the central axis of the piston rod is aligned with a radial axis of the sleeve 202. In this embodiment, the chain simulation bracket 201 is driven to move by the extension and contraction of the piston rod of the oil cylinder 402 to control the chain simulation bracket 201 to apply a radial load to the sprocket 5, and meanwhile, the central axis of the piston rod is aligned with a certain radial axis on the sleeve 202, so that the piston rod applies a force to the chain simulation bracket 201 on the radial axis on the sleeve 202, and the chain simulation bracket 201 applies a load to the sleeve 202 on the radial axis on the sleeve 202, thereby realizing that the chain simulation assembly 2 applies a load to the sprocket 5 on the radial axis of the sleeve 202.
Further, the oil cylinder 402 and the sleeve 202 are both horizontally arranged, and the height of the central axis of the piston rod is the same as the height of the central axis of the sleeve 202, so that when the preset radial axis of the sleeve 202 is the horizontal radial axis of the sleeve 202, the force applied by the piston rod to the chain simulation assembly 2 can be on the horizontal radial axis of the sleeve 202.
Furthermore, the oil cylinder 402 is hinged to the oil cylinder support 401, the piston rod is hinged to the chain simulation support 201, and the vertical force between the oil cylinder 402 and the oil cylinder support 401 and the vertical force between the piston rod and the chain simulation support 201 can be removed, so that the chain simulation assembly 2 applies radial load to the chain wheel 5 to be more suitable for an actual scene.
In some embodiments, the axial load loading assembly 3 comprises a rotating shaft 301 axially connected to the sprocket 5 and a motor 302; the motor 302 is drivingly connected to the rotating shaft for driving the rotating shaft to rotate axially. In this embodiment, the axial load applying assembly 3 further includes a speed reducer 303, a first end of the rotating shaft 301 is axially connected to the sprocket 5, a second end of the rotating shaft 301 is connected to the speed reducer 303, and the speed reducer 303 is further in transmission connection with an output shaft of the motor 302.
In some embodiments, the sprocket support 1 includes a support frame 101 and two connecting plates 102, the two connecting plates 102 are oppositely disposed on the support frame 101, and the sprocket 5 sequentially passes through the two connecting plates 102 and is axially and rotatably connected to one of the connecting plates 102. Preferably, the chain wheel endurance test bench further comprises a base 6, and the chain wheel bracket 1, the chain simulation assembly 2, the axial load loading assembly 3 and the radial load loading assembly 4 are arranged on the base 6.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A sprocket endurance test bench, comprising:
the chain wheel bracket (1) is used for mounting a chain wheel (5) to be tested;
the chain simulation assembly (2) is arranged to be connected with the chain wheel (5) and used for simulating the transmission connection of a chain to the chain wheel (5);
the axial load loading assembly (3) is arranged to be in driving connection with the chain wheel (5) and is used for applying axial load to the chain wheel (5);
and the radial load loading assembly (4) is connected with the chain simulation assembly (2) and is used for applying tension to the chain simulation assembly (2) so that the chain simulation assembly (2) applies radial load to the chain wheel (5).
2. The sprocket endurance test rig according to claim 1, wherein the chain simulating assembly (2) includes:
a chain simulation bracket (201) connected with the radial load loading assembly (4);
the sleeve (202) is axially and rotatably arranged on the chain simulation bracket (201), and the sleeve (202) is coaxially and detachably connected with the chain wheel (5);
the roller group (203) is arranged on the chain simulation bracket (201) and is close to the sleeve (202), and rollers on the roller group (203) can roll on the sleeve (202).
3. The sprocket wheel durability test bench according to claim 2, wherein the sprocket wheel (5) is provided with a first protrusion at a side portion thereof, and the sleeve (202) is provided with a second protrusion at an inner wall thereof, and is coaxially and fixedly connected with the sprocket wheel (5) by meshing the first protrusion with the second protrusion.
4. The sprocket endurance test rig according to claim 2, wherein the first end of the chain simulating support (201) is movably connected with the sprocket support (1), the first end of the chain simulating support (201) is further connected with the radial load loading assembly (4), and the roller set (203) is provided at a side of the sleeve (202) away from the chain simulating assembly (2).
5. The sprocket endurance test rig according to claim 4, in which the roller set (203) includes two rollers symmetrically disposed with respect to an extension line of a force application direction of the radial load loading assembly (4).
6. The sprocket durability test stand according to claim 2, wherein the radial load loading assembly (4) comprises:
a cylinder support (401);
the cylinder barrel of the oil cylinder (402) is connected with the oil cylinder support (401), the piston rod of the oil cylinder (402) is connected with the chain simulation support (201), and the central axis of the piston rod and a radial axis on the sleeve (202) are on the same straight line.
7. The sprocket durability test stand according to claim 6, wherein the cylinder (402) and the sleeve (202) are horizontally disposed, and the height of the central axis of the piston rod is the same as the height of the central axis of the sleeve (202).
8. The sprocket endurance test rig according to claim 6, in which the cylinder (402) is hinged with the cylinder bracket (401) and the piston rod is hinged with the chain simulation bracket (201).
9. The sprocket durability test stand according to claim 1, wherein the axial load loading assembly (3) comprises:
a rotating shaft (301) axially connected to the sprocket (5);
and the motor (302) is in driving connection with the rotating shaft and is used for driving the rotating shaft (301) to axially rotate.
10. The sprocket durability test stand according to claim 1, wherein the sprocket support (1) comprises:
a support frame (101);
the two connecting plates (102) are oppositely arranged on the supporting frame (101), and the chain wheel (5) sequentially penetrates through the two connecting plates (102) and then is respectively connected with one connecting plate (102) in an axial rotating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121434833.0U CN215910104U (en) | 2021-06-25 | 2021-06-25 | Sprocket endurance test rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121434833.0U CN215910104U (en) | 2021-06-25 | 2021-06-25 | Sprocket endurance test rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215910104U true CN215910104U (en) | 2022-02-25 |
Family
ID=80288327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121434833.0U Expired - Fee Related CN215910104U (en) | 2021-06-25 | 2021-06-25 | Sprocket endurance test rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215910104U (en) |
-
2021
- 2021-06-25 CN CN202121434833.0U patent/CN215910104U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |