CN220120394U - Steering engine load test device - Google Patents
Steering engine load test device Download PDFInfo
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- CN220120394U CN220120394U CN202321257009.1U CN202321257009U CN220120394U CN 220120394 U CN220120394 U CN 220120394U CN 202321257009 U CN202321257009 U CN 202321257009U CN 220120394 U CN220120394 U CN 220120394U
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- steering engine
- base
- thrust bearing
- connecting rod
- engine load
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000036316 preload Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 1
- 238000011056 performance test Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 230000005483 Hooke's law Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model provides a steering engine load test device, and relates to the field of steering engine performance test equipment. The steering engine load test device comprises a base, a thrust bearing, a sliding bearing, a pre-tightening force structure and a connecting rod assembly. The middle part of the base is provided with a through mounting hole; the thrust bearing is arranged at one end in the base; the inner diameter of the thrust bearing is matched with the mounting hole; the sliding bearing is arranged in the base and is positioned at one side of the thrust bearing; the inner diameter of the sliding bearing is kept consistent with that of the thrust bearing; the pretightening force structure is arranged at one end of the base, which is far away from the thrust bearing; the mounting hole of the base, the thrust bearing and the sliding bearing form a through hole in a preset space; a transmission shaft is inserted into the through hole; one end of the connecting rod assembly is connected with the transmission shaft, and the other end of the connecting rod assembly is connected with a steering engine to be tested; when the steering engine rocker arm is tested, the rocker arm is sleeved on the transmission shaft, and the pretightening force structure applies pressure in a preset range interval.
Description
Technical Field
The utility model relates to the field of steering engine performance test equipment, in particular to a steering engine load test device.
Background
The steering engine is a position (angle) servo driver and is suitable for control systems which need continuous change of angles and can be maintained. Have found widespread use in high-end remote control toys, such as aircraft, submarine models, and remote control robots.
To check the stability of the performance of the steering engine, a constant reaction load needs to be applied to the steering engine rocker arm, and this load can also provide a constant load to the steering engine during the reciprocating motion.
The existing structure directly utilizes the elasticity of a pressure spring to design a connecting rod as a load, and different constant forces need to be replaced by different pressure spring connecting rods. This structure hardly provides stable constant force in the reciprocating motion of the steering engine, and the constant force cannot be adjusted, which results in unstable test data.
Disclosure of Invention
The utility model aims to: the steering engine load test device can effectively solve the problems in the prior art.
In a first aspect, a steering engine load test device is provided, and the steering engine load test device includes base, thrust bearing, slide bearing, pretightning force structure, connecting rod subassembly.
The middle part of the base is provided with a through mounting hole; the thrust bearing is arranged at one end in the base; the inner diameter of the thrust bearing is matched with the mounting hole; the sliding bearing is arranged in the base and is positioned at one side of the thrust bearing; the inner diameter of the sliding bearing is kept consistent with the inner diameter of the thrust bearing; the pretightening force structure is arranged at one end of the base far away from the thrust bearing; the mounting hole of the base, the thrust bearing and the sliding bearing form a through hole in a preset space; the transmission shaft is inserted into the through hole; one end of the connecting rod assembly is connected with the transmission shaft, and the other end of the connecting rod assembly is connected with a steering engine to be tested;
when the steering engine rocker arm is tested, the rocker arm is sleeved on the transmission shaft, and the pretightening force structure applies pressure in a preset range interval.
In a further embodiment, the base is provided with a mounting groove at an end near the sliding bearing.
In a further embodiment, the pre-tightening structure comprises a pressing block arranged in the mounting groove in a cushioning mode, a cushion block inserted into the transmission shaft, and a pressure spring arranged between the pressing block and the cushion block.
In a further embodiment, the cross section of the pad is T-shaped; a step surface is arranged on the upper surface; the section of the pressing block is also T-shaped; a step surface is arranged on the upper surface; two ends of the pressure spring are respectively arranged on the step surface in a cushioning mode.
In a further embodiment, the pre-tightening structure further comprises a nut arranged at one side of the cushion block; when the steering engine is tested, the constant force in a preset range is obtained by adjusting the pretightening force of the nut.
In a further embodiment, a flat pad and a spring pad are sequentially arranged between the nut and the cushion block.
In a further embodiment, the pre-tightening structure further comprises a pre-tightening structure further comprising a friction plate arranged between the sliding bearing and the press block.
In a further embodiment, the connecting rod assembly includes a hinge portion connected to the swing arm, and a connecting rod fixedly connected to the hinge portion.
The utility model has the following beneficial effects: the novel structure is characterized in that the compression spring force acts on the pressing block, the compression length of the compression spring is not changed in the test process, and the force acting on the pressing block is not changed. The friction factor of the pressing block and the friction plate is constant, so that the friction force between the pressing block and the friction plate cannot change. The constant friction force is transmitted to the output shaft and is transmitted to the steering engine through the connecting rod. Avoiding the influence of the extension or compression of the compression spring in the prior device. The pretension nut can obtain different constant forces, and the hooke's law is utilized to change the elasticity of the pressure spring so as to obtain different constant loads. Different constant force devices do not need to be replaced for different constant force in the test.
Drawings
Fig. 1 is a cross-sectional view of the present utility model.
Fig. 2 is a schematic view of the present utility model in a use state.
The reference numerals in the drawings are as follows: base 1, thrust bearing 2, transmission shaft 3, friction disc 4, clamping ring 5, slide bearing 6, briquetting 7, pressure spring 8, cushion 9, screw 10, flat pad 11, bullet pad 12, nut 13, mount pad 14, rocking arm 15, connecting rod 16.
Description of the embodiments
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.
The applicant researches that the existing structure directly utilizes the elasticity of a pressure spring to design a connecting rod as a load, and different constant forces need to replace different pressure spring connecting rods. This structure hardly provides stable constant force in the reciprocating motion of the steering engine, and the constant force cannot be adjusted, which results in unstable test data.
Therefore, this embodiment proposes a novel steering engine load test device, and the novel structure does not directly load on the steering engine, but acts the force of the pressure spring 8 on the pressure block 7, and in the test process, the compression length of the pressure spring 8 does not change, and the force acting on the pressure block does not change. The friction factor of the pressing block 7 and the friction plate 4 is constant, so that the friction force between them does not change. The constant friction force is transmitted to the output shaft and is transmitted to the steering engine through the connecting rod. Avoiding the influence of the extension or compression of the compression spring 8 in the prior art. The pretension nut 13 can obtain different constant forces, and the hooke's law is utilized to change the elasticity of the compression spring 8 to obtain different constant loads. Different constant force devices do not need to be replaced for different constant force in the test.
The embodiment provides a steering engine load test device, which consists of a base 1, a thrust bearing 2, a friction plate 4, a compression ring 5, a sliding bearing 6, a transmission shaft 3, a pressing block 7, a cushion block 9, a screw 10, a flat pad 11, a spring pad 12 and a nut 13. The middle part of the base 1 is provided with a through mounting hole. The thrust bearing 2 is arranged at one end in the base 1; the inner diameter of the thrust bearing 2 is adapted to the mounting hole. A sliding bearing 6 is arranged in the base 1 and positioned at one side of the thrust bearing 2; the inner diameter of the sliding bearing 6 is kept identical to the inner diameter of the thrust bearing 2. The base 1 is provided with a mounting groove at one end close to the sliding bearing 6. The pre-tightening structure is arranged at one end of the base 1 away from the thrust bearing 2. The mounting hole of the base 1, the thrust bearing 2 and the sliding bearing 6 form a through hole in a predetermined space.
The steering engine load test device comprises a connecting rod 16 assembly, wherein one end of the connecting rod assembly is connected with the transmission shaft, and the other end of the connecting rod assembly is connected with a steering engine to be tested. The connecting rod assembly comprises a hinge part connected with the rocker arm 15 and a connecting rod 16 fixedly connected with the hinge part.
The pressing block 7 is arranged in the mounting groove in a cushioning manner; the cushion block 9 is inserted into the transmission shaft 3; the compression spring 8 is arranged between the pressing block 7 and the cushion block 9. The components together form a pretightening force structure. The pretightening force structure also comprises a nut 13 arranged on one side of the cushion block 9; when the steering engine is tested, the constant force in a preset range is obtained by adjusting the pretightening force of the nut 13. The pretensioning structure is wrapped by a mounting base 14.
The nut 13 is not in direct contact with the pad 9, but in indirect contact with the pad 9 through the flat pad 11 and the spring pad 12. The flat pad 11 is used for enlarging the contact surface between the nut 13 and the workpiece, so that damage to the machine surface caused by the pad of the pressure spring 8 when the screw is removed is eliminated. The ring of the flat pad 11 has no anti-loose function, so that an elastic pad 12 is additionally arranged.
The section of the cushion block 9 is T-shaped; a step surface is arranged on the upper surface; the section of the pressing block 7 is also T-shaped; a step surface is arranged on the upper surface; two ends of the pressure spring 8 are respectively arranged on the step surface in a cushioning mode.
When the steering engine rocker arm 15 is tested, the rocker arm 15 is sleeved on the transmission shaft, and the pretightening force structure applies pressure in a preset range interval. The whole mechanism is to generate friction force to output constant acting force by acting on the friction plate 4 through the elastic force of the pressure spring 8. In the figure, the compression spring 8 generates pressure under the pretension of the nut 13, the pressure acts on the pressing block 7, and the pressing block 7 and the friction plate 4 generate constant friction force during the rotation of the shaft. The friction force is constant when the shaft rotates in different clockwise and anticlockwise directions. The force output is also constant.
The magnitude of this constant force can be adjusted by adjusting the preload of the nut 13 to achieve a constant force over a range.
As described above, although the present utility model has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the utility model itself. Various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. Steering wheel load test device, its characterized in that includes:
a base; the middle part of the base is provided with a through mounting hole;
a thrust bearing disposed at one end within the base; the inner diameter of the thrust bearing is matched with the mounting hole;
a sliding bearing arranged in the base and positioned at one side of the thrust bearing; the inner diameter of the sliding bearing is kept consistent with the inner diameter of the thrust bearing;
the pretightening force structure is arranged at one end of the base far away from the thrust bearing;
the mounting hole of the base, the thrust bearing and the sliding bearing form a through hole site with a preset space; the transmission shaft is inserted into the through hole;
a connecting rod assembly; one end of the connecting rod assembly is connected with the transmission shaft, and the other end of the connecting rod assembly is connected with a steering engine to be tested;
when the steering engine rocker arm is tested, the rocker arm is sleeved on the transmission shaft, and the pretightening force structure applies pressure in a preset range interval.
2. The steering engine load test device of claim 1, wherein the base has a mounting groove at an end thereof adjacent to the slide bearing.
3. The steering engine load testing device of claim 2, wherein the pretension structure comprises:
the pressing block is arranged in the mounting groove in a cushioning manner;
the cushion block is inserted into the transmission shaft;
the pressure spring is arranged between the pressing block and the cushion block.
4. The steering engine load test device of claim 3, wherein the cross section of the cushion block is T-shaped; a step surface is arranged on the upper surface;
the section of the pressing block is also T-shaped; a step surface is arranged on the upper surface;
two ends of the pressure spring are respectively arranged on the step surface in a cushioning mode.
5. The steering engine load test device of claim 3, wherein the pre-tightening structure further comprises a nut disposed on one side of the spacer block;
when the steering engine is tested, the constant force in a preset range is obtained by adjusting the pretightening force of the nut.
6. The steering engine load test device of claim 5, wherein a flat pad and a spring pad are sequentially arranged between the nut and the cushion block.
7. The steering engine load testing device of claim 3, wherein the preload structure further comprises a friction plate disposed between the slide bearing and the press block.
8. The steering engine load testing apparatus of claim 1, wherein the connecting rod assembly includes a hinge portion connected to the rocker arm, and a connecting rod fixedly connected to the hinge portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321257009.1U CN220120394U (en) | 2023-05-23 | 2023-05-23 | Steering engine load test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321257009.1U CN220120394U (en) | 2023-05-23 | 2023-05-23 | Steering engine load test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220120394U true CN220120394U (en) | 2023-12-01 |
Family
ID=88891983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321257009.1U Active CN220120394U (en) | 2023-05-23 | 2023-05-23 | Steering engine load test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220120394U (en) |
-
2023
- 2023-05-23 CN CN202321257009.1U patent/CN220120394U/en active Active
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