CN214173613U - Device for detecting friction torque of power steering gear valve assembly - Google Patents
Device for detecting friction torque of power steering gear valve assembly Download PDFInfo
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- CN214173613U CN214173613U CN202120504554.0U CN202120504554U CN214173613U CN 214173613 U CN214173613 U CN 214173613U CN 202120504554 U CN202120504554 U CN 202120504554U CN 214173613 U CN214173613 U CN 214173613U
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Abstract
A device for detecting friction torque of a valve assembly of a power steering gear is characterized in that a valve clamp positioning mechanism is fixed on a base, the top of the valve clamp positioning mechanism is provided with a hole, cylinder pressing mechanisms are fixed on two sides of the hole, a supporting seat is fixed above the base, a connecting shaft is fixed through the supporting seat, one end of the connecting shaft is connected with a motor, and the other end of the connecting shaft is connected with the valve assembly to be detected; the motor is connected with a torque sensor. A power distribution cabinet is arranged behind the base, and supplies power to the air cylinder through an air cylinder compression control switch and supplies power to the motor through a motor control switch; even have the display screen on the protection frame of base, the display screen is connected with torque sensor and is shown data. The device can automatically detect the quality of the assembly valve assembly, and effectively and stably improves the performance of the whole automobile steering system.
Description
Technical Field
The utility model belongs to an automobile power steering gear, in particular to detection device of steering gear valve assembly.
Background
With the rapid development of the automobile industry, in order to meet the development requirements of vehicle safety, driving comfort and the like, the functional requirement of the power steering gear, which is one of the important components of the automobile, is higher and higher. The power steering assembly consists of a mechanical part and a hydraulic part, wherein the mechanical part aims to transmit the force from the steering wheel of the automobile according to a correct route, and the hydraulic part aims to make the steering wheel easy and flexible to operate and improve the operation stability. The friction torque of the valve assembly of the power steering gear has the function of directly controlling the heavy steering and steering hand feeling of the power steering gear, and can be a core part of the power steering gear, so that the effective detection of the friction torque of the valve assembly is very important after the valve assembly is assembled. The traditional method for detecting the friction torque of the valve assembly generally comprises the steps of fixing the valve assembly, sleeving a mechanical torque measuring instrument on an input shaft, rotating the torque measuring instrument by hand, and recording friction torque data after rotating for a circle, but the method can only detect that the maximum value of the friction torque in the rotating process of the valve assembly is data, cannot continuously record current friction torque data when rotating to each angle, has the defects that the rotation is manual, the quantitative judgment cannot be carried out, the accuracy is low, and the problems of heavy steering, steering hand feeling and the like of a steering wheel can be caused.
Disclosure of Invention
The utility model aims to provide a: the device can automatically detect the quality of the assembled valve assembly, and effectively and stably improves the performance of the whole automobile steering system.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model discloses a: the valve clamp positioning mechanism is fixed on the base, a hole is formed in the top of the valve clamp positioning mechanism, the cylinder pressing mechanisms are fixed on two sides of the hole, a supporting seat is fixed above the base, a connecting shaft is fixed through the supporting seat, one end of the connecting shaft is connected with the motor, and the other end of the connecting shaft is connected with a valve assembly to be detected; the motor is connected with a torque sensor.
A power distribution cabinet is arranged behind the base, and supplies power to the air cylinder through an air cylinder compression control switch and supplies power to the motor through a motor control switch; even have the display screen on the protection frame of base, the display screen is connected with torque sensor and is shown data.
The periphery of the whole device is provided with a protective cover.
The utility model has the advantages that:
1. the top of the valve clamp positioning mechanism of the utility model is provided with a hole, and the valve assembly to be detected is put into the air, thus playing a role in radial positioning; the cylinder pressing mechanism presses a valve body of the valve assembly to be detected to play a role in axial positioning, and the valve assembly is fixed through the 2 devices; the operation is more stable, and the labor intensity of operators is greatly reduced;
2. the utility model discloses use the angle encoder shared action of torque sensor and motor, the friction torque and the relation between the rotation angle of automatic measurement valve assembly, the problem that appears after the better judgement assembly reduces the assembly and judges the waste product production that leads to reduce processing waste product cost, economic benefits is showing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention.
Detailed Description
Referring to fig. 1-2, a power distribution cabinet 13 is provided behind the base 6 to supply power to the device; the outer part of the base 6 is provided with a protective cover 1 which plays a role in protecting the device; a display screen 2 is connected to a protective frame of the protective cover 1, a valve clamp positioning mechanism 5 is fixed to a base 6, a hole is formed in the top of the valve clamp positioning mechanism, cylinder pressing mechanisms 4 are fixed to two sides of the hole, a supporting seat 44 is fixed to the upper portion of the base 6, a connecting shaft 9 is fixed through a supporting seat 11, one end of the connecting shaft 9 is connected with a motor 12, and the other end of the connecting shaft 9 is connected with a valve assembly 3 to be detected; a torque sensor 10 is connected to the motor 12. The power distribution cabinet 13 supplies power to the air cylinder through the air cylinder compression control switch 7 and supplies power to the motor through the motor control switch 8; even have display screen 11 on the protection frame of base 6, display screen 11 is connected with torque sensor 10 and is shown data.
During detection, the valve assembly 3 to be detected is placed into a hole of the valve clamp positioning mechanism 5, the upper portion of the valve assembly 3 is connected with the connecting shaft 9 through a spline, and a valve body of the valve assembly 3 is clamped on the valve clamp positioning mechanism 5. After the installation finishes, press cylinder hold-down control switch 7, cylinder hold-down mechanism 4 compresses tightly valve assembly 3, presses motor control switch 8 again, and motor 12 drives valve assembly 3 through connecting axle 9 and rotates, and earlier clockwise rotation 1080, anticlockwise rotation 1080 again.
The torque sensor 10 can collect the friction torque value generated in the process of rotating the valve assembly 3 and display the friction torque value on a display screen. After the detection is finished, the cylinder pressing mechanism 4 automatically releases the valve assembly 3, the detection result is in a qualified range, the valve assembly 3 can be smoothly circulated, and the detection result is not in the qualified range, so that the valve assembly 3 is reassembled.
Claims (3)
1. An apparatus for detecting friction torque of a power steering valve assembly, comprising: base, its characterized in that: a valve clamp positioning mechanism is fixed on the base, the top of the valve clamp positioning mechanism is provided with a hole, cylinder pressing mechanisms are fixed on two sides of the hole, a supporting seat is fixed above the base, a connecting shaft is fixed through the supporting seat, one end of the connecting shaft is connected with a motor, and the other end of the connecting shaft is connected with a valve assembly to be detected; the motor is connected with a torque sensor.
2. The apparatus of claim 1, wherein the means for detecting a friction torque of the power steering valve assembly comprises: a power distribution cabinet is arranged behind the base, and supplies power to the air cylinder through an air cylinder compression control switch and supplies power to the motor through a motor control switch; even have the display screen on the protection frame of base, the display screen is connected with torque sensor and is shown data.
3. An apparatus for detecting friction torque of a power steering gear valve assembly according to claim 1 or 2, wherein: the periphery of the whole device is provided with a protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120504554.0U CN214173613U (en) | 2021-03-10 | 2021-03-10 | Device for detecting friction torque of power steering gear valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120504554.0U CN214173613U (en) | 2021-03-10 | 2021-03-10 | Device for detecting friction torque of power steering gear valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214173613U true CN214173613U (en) | 2021-09-10 |
Family
ID=77595987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120504554.0U Active CN214173613U (en) | 2021-03-10 | 2021-03-10 | Device for detecting friction torque of power steering gear valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214173613U (en) |
-
2021
- 2021-03-10 CN CN202120504554.0U patent/CN214173613U/en active Active
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