CN218381601U - Endurance test equipment for transmission belt of parallel shaft type electric power steering gear - Google Patents
Endurance test equipment for transmission belt of parallel shaft type electric power steering gear Download PDFInfo
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- CN218381601U CN218381601U CN202222093424.XU CN202222093424U CN218381601U CN 218381601 U CN218381601 U CN 218381601U CN 202222093424 U CN202222093424 U CN 202222093424U CN 218381601 U CN218381601 U CN 218381601U
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- belt wheel
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Abstract
The utility model belongs to the technical field of the auto steering system technique and specifically relates to a parallel shaft formula electric power steering machine driving belt's endurance test equipment, including drive servo motor, load servo motor, the lead screw, adjusting nut, linear guide, tensile force sensor, joint bearing, torque sensor, the universal joint, high-low temperature box, adopt universal joint one to be connected between drive servo motor's axle and the little band pulley center pin, adopt universal joint two to be connected between load servo motor's axle and the big band pulley center pin, sliding base installs on linear guide, the lead screw adopts adjusting nut fixed with sliding base's the other end, unable adjustment base, sliding base are located high-low temperature box. Compared with the prior art, the utility model, direct durable performance to belt subassembly assesses, has practiced thrift steering gear assembly rack resource, has improved experimental response speed. The utility model has the advantages of convenient installation and quick measurement.
Description
Technical Field
The utility model belongs to the technical field of the auto steering system technique and specifically relates to a parallel shaft type electric power steering machine driving belt's endurance test equipment.
Background
The drive belt and pulley assembly is a core component of a parallel shaft electric power steering gear. Wherein, the small belt wheel is the output end of the driving motor, and the large belt wheel is the input end of the ball screw. Through belt transmission, the effects of speed reduction and torque increase are achieved, and therefore the output load of the steering engine is improved.
Referring to fig. 1, a small pulley 2 and a large pulley 3 are mounted on a transmission belt 1. The position of the large belt wheel is adjusted along the central line of the large belt wheel and the small belt wheel, and then the tension of the belt is adjusted to be within a required range. Too high or too low tension of the belt easily causes accelerated belt wear or tooth skipping during belt operation. The dimensional tolerance and the installation error of the large belt wheel and the small belt wheel, the length and the rigidity of the belt, the load value of the end of the large belt wheel, the driving speed of the small belt wheel and the tension of the belt can all affect the vibration and the durability of the belt assembly.
Currently, the endurance test of the belt component requires assembling parts into a complete steering engine and completing the test on an assembly test bench. Such a test method has the following disadvantages: 1, the assembly rack resources are occupied, and 2, due to the superposition of other parts, the test of the steering gear level interferes the test result of the belt component.
Therefore, it is necessary to design a durability test device for a transmission belt of a parallel shaft type electric power steering gear, which can directly evaluate the durability performance of a belt component and save rack resources of a steering gear assembly.
Disclosure of Invention
The utility model aims at overcoming prior art's not enough, providing a parallel shaft type electric power steering gear driving belt's endurance test equipment, can enough directly assess the durable performance of belt subassembly, also can practice thrift steering gear assembly rack resource.
In order to achieve the above object, the utility model provides a parallel shaft type electric power steering gear driving belt's endurance test equipment, including drive servo motor, load servo motor, the lead screw, adjusting nut, linear guide, tensile force sensor, joint bearing, torque sensor, the universal joint, high and low temperature box, drive servo motor's axle is connected with the one end of universal joint one, the other end of universal joint one is connected with little band pulley central axis, little band pulley central axis passes high and low temperature box, after the unable adjustment base, be connected with little band pulley, be equipped with torque sensor between load servo motor's axle and the one end of universal joint two, the other end of universal joint two is connected with big band pulley central axis, big band pulley central axis passes high and low temperature box, after the one end of sliding bottom, be connected with big band pulley, sliding bottom installs on linear guide, the lead screw adopts adjusting nut to fix with sliding bottom's the other end, the tip of lead screw is connected with tensile force sensor's one end, adopt joint bearing to be connected between the other end of tensile force sensor and sliding bottom, unable adjustment base, sliding bottom is located high and low temperature box.
The shaft of the driving servo motor is coaxial with the central shaft of the small belt wheel.
The fixed base and the sliding base are connected by a linear bearing.
The driving servo motor, the load servo motor and the torque sensor are arranged on the bottom plate through a support.
The top of the high-low temperature box body is covered with a high-low temperature box upper cover.
And bearings are arranged between the small belt wheel central shaft and the high-low temperature box body and between the large belt wheel central shaft and the high-low temperature box body, and are arranged on bearing seats.
And a laser vibration meter is arranged above the high-low temperature box body, and an acceleration sensor is arranged on a bearing seat of the central shaft of the large belt wheel.
The small belt wheel is connected with the large belt wheel through a belt.
Compared with the prior art, the utility model, designed parallel shaft type electric power steering machine driving belt's endurance test equipment, directly appraised the durable performance of belt subassembly, practiced thrift steering machine assembly rack resource, improved experimental response speed. The utility model has the advantages of convenient installation and quick measurement.
Drawings
FIG. 1 is a schematic view of a belt assembly.
Fig. 2 is an axonometric view of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a top view of the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Referring to fig. 2, fig. 3 and fig. 4, the utility model provides a parallel shaft type electric power steering gear driving belt's endurance test equipment, including drive servo motor, load servo motor, the lead screw, adjusting nut, linear guide, tensile force sensor, joint bearing, torque sensor, the universal joint, high and low temperature case box, drive servo motor 16's axle is connected with the one end of universal joint 82, the other end and the little band pulley jackshaft of universal joint 82 are connected, little band pulley jackshaft passes high and low temperature case box 14, behind the unable adjustment base 19, is connected with little band pulley 2, be equipped with torque sensor 18 between load servo motor 17's axle and the one end of universal joint two 81, torque sensor 18 is used for the accurate control load moment of torsion, the load moment of torsion is according to parallel shaft type electric power steering gear product demand adjustment size. The other end of the second universal joint 81 is connected with a central shaft of a large belt wheel, the central shaft of the large belt wheel penetrates through the high-low temperature box body 14 and one end of the sliding base 20 and then is connected with the large belt wheel 3, the sliding base 20 is installed on the linear guide rail 7, the screw rod 5 and the other end of the sliding base 20 are fixed through the adjusting nut 6, the end portion of the screw rod 5 is connected with one end of the tension sensor 15, the other end of the tension sensor 15 and one end of the sliding base 20 are connected through the joint bearing 13, and the fixed base 19 and the sliding base 20 are located in the high-low temperature box body 14. The small belt wheel 2 is connected with the large belt wheel 3 by a belt 1.
The utility model discloses in, be equipped with the bearing between little band pulley center pin and the high-low temperature case box 14, between big band pulley center pin and the high-low temperature case box 14, the bearing is installed on bearing frame 9
The axis of the driving servo motor 16 is coaxial with the central axis of the small pulley 2, and vibration generated by high-speed rotation is reduced.
The fixed base 19 and the sliding base 20 are connected by a linear bearing 12.
The driving servo motor 16, the load servo motor 17 and the torque sensor 18 are arranged on the bottom plate 4 by adopting a bracket.
The utility model discloses when carrying out endurance test, the top of high-low temperature cabinet box 14 covers there is high-low temperature cabinet upper cover 10.
The driving end and the load end both adopt servo motors, and when the durability test of the belt assembly is executed, the driving end and the load end can be loaded with alternating loads. The servo motor has high precision, adopts closed-loop control and has quick response.
The utility model discloses at the during operation, with little band pulley 2, big band pulley 3, 1 installation backs of belt, tensile force sensor 15 gathers tensile force data, and manual rotating adjusting nut 6 drives sliding base 20 translation around on linear guide 7, treats that the belt tensile force reaches the settlement range intermediate value, 6 locking of adjusting nut to this obtains required belt tensile force. The upper high and low temperature box cover 10 is then mounted to the high and low temperature box body 14. After the set driving torque of the driving servo motor 16, the load torque of the load servo motor 17, the temperature in the cabinet, and the number of cycles, the stage was started to execute the endurance test. The test was suspended after 1/4 cycle, 1/2 cycle, 3/4 cycle of the total number of cycles and the test was completed. The belt assembly was visually inspected for cracking, the belt vibration frequency was measured using a dedicated device, and the durability test results at each stage were evaluated.
The utility model discloses except can being used to the durable test of belt subassembly, still can extend and carry out belt subassembly vibration test. During vibration testing, the upper cover 10 of the high-low temperature box is not installed, the laser vibration meter 11 is installed above the box body 14 of the high-low temperature box, the laser point of the laser vibration meter 11 is located on the belt 1 and close to the end of the small belt wheel 2, and the distance between the laser point and the edge of the belt 1 and the axis of the small belt wheel 2 is measured by using a vernier caliper. And after the laser point is properly positioned, fixing the position of the laser vibration meter 11. An acceleration sensor is arranged on a bearing seat of the central shaft of the large belt wheel. The driving servo motor 16 accelerates firstly and then runs at a constant speed according to set parameters, the Haidel data acquisition system acquires vibration acceleration and vibration speed, and the Artimis analysis software evaluates the vibration speed and the vibration acceleration of the whole system at two latitudes, so that the data accuracy and the authenticity are improved.
The utility model discloses a parallel shaft type electric power steering machine driving belt's endurance test equipment directly assesses belt assembly's durable performance, has practiced thrift steering machine assembly rack resource, has improved experimental response speed. The utility model has the advantages of convenient installation and quick measurement.
Claims (8)
1. The utility model provides an endurance test equipment of parallel shaft type electric power steering machine driving belt, includes drive servo motor, load servo motor, lead screw, adjusting nut, linear guide, tensile force sensor, joint bearing, torque sensor, universal joint, high and low temperature box, its characterized in that: the shaft of a driving servo motor (16) is connected with one end of a first universal joint (82), the other end of the first universal joint (82) is connected with a central shaft of a small belt wheel, the central shaft of the small belt wheel penetrates through a high-low temperature box body (14) and a fixed base (19) and then is connected with a small belt wheel (2), a torque sensor (18) is arranged between the shaft of a load servo motor (17) and one end of a second universal joint (81), the other end of the second universal joint (81) is connected with a central shaft of a large belt wheel, the central shaft of the large belt wheel penetrates through the high-low temperature box body (14) and one end of a sliding base (20) and then is connected with the large belt wheel (3), the sliding base (20) is installed on a linear guide rail (7), a screw rod (5) and the other end of the sliding base (20) are fixed through an adjusting nut (6), the end of the screw rod (5) is connected with one end of a tension sensor (15), the other end of the tension sensor (15) is connected with one end of the sliding base (20) through a joint bearing (13), the fixed base (19) and the sliding base (20) is located in the high-low temperature box body (14).
2. The apparatus for testing durability of a transmission belt of a parallel shaft type electric power steering according to claim 1, characterized in that: the shaft of the driving servo motor (16) is coaxial with the central shaft of the small belt wheel (2).
3. The apparatus for testing durability of a transmission belt of a parallel shaft type electric power steering gear according to claim 1, characterized in that: the fixed base (19) is connected with the sliding base (20) through a linear bearing (12).
4. The apparatus for testing durability of a transmission belt of a parallel shaft type electric power steering according to claim 1, characterized in that: the driving servo motor (16), the load servo motor (17) and the torque sensor (18) are arranged on the bottom plate (4) by adopting a bracket.
5. The apparatus for testing durability of a transmission belt of a parallel shaft type electric power steering gear according to claim 1, characterized in that: the top of the high-low temperature box body (14) is covered with a high-low temperature box upper cover (10).
6. The apparatus for testing durability of a transmission belt of a parallel shaft type electric power steering according to claim 1, characterized in that: and bearings are arranged between the small belt wheel central shaft and the high-low temperature box body (14) and between the large belt wheel central shaft and the high-low temperature box body (14), and are arranged on the bearing seats (9).
7. The apparatus for testing durability of a transmission belt of a parallel shaft type electric power steering gear according to claim 6, characterized in that: and a laser vibration meter (11) is arranged above the high-low temperature box body (14), and an acceleration sensor is arranged on a bearing seat (9) of the large belt wheel central shaft.
8. The apparatus for testing durability of a transmission belt of a parallel shaft type electric power steering according to claim 1, characterized in that: the small belt wheel (2) is connected with the large belt wheel (3) through a belt (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222093424.XU CN218381601U (en) | 2022-08-10 | 2022-08-10 | Endurance test equipment for transmission belt of parallel shaft type electric power steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222093424.XU CN218381601U (en) | 2022-08-10 | 2022-08-10 | Endurance test equipment for transmission belt of parallel shaft type electric power steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218381601U true CN218381601U (en) | 2023-01-24 |
Family
ID=84964964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222093424.XU Active CN218381601U (en) | 2022-08-10 | 2022-08-10 | Endurance test equipment for transmission belt of parallel shaft type electric power steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218381601U (en) |
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2022
- 2022-08-10 CN CN202222093424.XU patent/CN218381601U/en active Active
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