CN213842635U - Integral screw loading roller adhesion coefficient tester - Google Patents
Integral screw loading roller adhesion coefficient tester Download PDFInfo
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- CN213842635U CN213842635U CN202022737690.2U CN202022737690U CN213842635U CN 213842635 U CN213842635 U CN 213842635U CN 202022737690 U CN202022737690 U CN 202022737690U CN 213842635 U CN213842635 U CN 213842635U
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Abstract
Integral type screw rod loading cylinder coefficient of adhesion tester includes: the device comprises a test wheel, a wheel frame, a positive pressure sensor, a braking force sensor, a disc brake, a pressurizing mechanism and a rack; the test wheel is arranged in the wheel frame; a pressurization mechanism comprising: a screw rotating disc and a screw; the top of the screw is provided with a screw rotating disc; the positive pressure sensor is arranged above the wheel frame at the top end of the testing wheel, and the positive pressure sensor is pressed at the bottom end of the screw rod; one end of the braking force sensor is connected with the wheel frame, and the other end of the braking force sensor is connected with the disc brake; one end of the disc brake is arranged on a wheel shaft of the test wheel and can rotate around the wheel shaft, the other end of the disc brake is connected with the braking force sensor, and when the disc brake is braked, the braking force of the disc brake is fed back through the braking force sensor; two sides of the rack are respectively provided with two hook mechanisms, and the rack is fixed on the inspection bench through four hook mechanisms. The utility model discloses with test wheel and frame integration as an organic whole, design into integral type screw rod loading cylinder adhesion coefficient tester, volume, weight are moderate, conveniently carry.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the test equipment of cylinder reaction formula car braking checkout stand specifically indicates an integral type screw rod loading cylinder coefficient of adhesion tester.
[ background of the invention ]
The braking performance is one of the important indexes of the automobile safety performance, directly influences the exertion of the automobile speed performance and is closely related to the traffic safety of people. The roller reaction type brake inspection bench is used for inspecting the brake performance of an automobile detection line, and the size of the roller adhesion coefficient is important for calculating the brake rate of the automobile. The 5.1 technical parameter part in GB/T13564-. Therefore, the adhesion coefficient of the drum reaction type brake inspection bench is accurately measured, and the drum reaction type brake inspection bench plays a vital role in guaranteeing the driving safety of people.
JG906-2015 specifies certification items and certification methods for a drum reaction type brake checker, in which standard apparatus measurement and simulation measurement are used for certification of a slip adhesion coefficient, and in case of doubt, the standard apparatus measurement is used for arbitration. The standard device measurement method needs to be carried out by adopting an adhesion coefficient tester. However, the conventional adhesion coefficient tester (for example, the drum adhesion coefficient tester structure disclosed in chinese utility model patent ZL02240336.1, which is a weight loading counterweight module) is too heavy due to the existence of the counterweight unit and the self-weight of the tester itself, and the whole system mechanism is complex and is not convenient for installation and debugging. And the adhesion coefficient tester of Hebei Zhongsheng detection technology service company Limited comprises a frame, wheels, a hand brake, a counterweight, a display and the like, the instrument is in positive pressure due to dead weight and the counterweight of the instrument, and the stability of the instrument is ensured by a draw hook, the whole tester is large and heavy, and the draw hook needs to find a hook point for fixing during testing, so that the tester is inconvenient to carry and test on site. The verification of the automobile line requires a calibrator to perform verification, so that the working efficiency of the verification is improved in order to facilitate carrying and operation of the calibrator, and a novel roller adhesion coefficient tester is very necessary to be developed.
In 2013, 5 th 'measuring technology' discloses a novel roller adhesion coefficient tester, and a traditional balancing weight is replaced by a screw pressurization mode. The weight of the whole system is reduced, the structure of the system is simplified, and meanwhile, the positive pressure can be adjusted according to different environments. However, this document only designs a test wheel (see fig. 2 in the document), and requires the test bed to be tested to design and machine the outer mount frame according to the test bed and the test wheel size when in use, and is a design in which the test wheel and the outer frame are separated. In fact, a mounting frame is processed when the tester is used, but the mounting frame only can be suitable for a test bed and can only be used for measuring at one position of the test bed, and the universality is poor.
[ Utility model ] content
The utility model aims to solve the technical problem that an integral type screw rod loading cylinder adhesion coefficient tester that possesses the commonality is provided.
The utility model discloses a realize like this:
integral type screw rod loading cylinder coefficient of adhesion tester includes: the device comprises a test wheel, a wheel frame, a positive pressure sensor, a braking force sensor, a disc brake, a pressurizing mechanism and a rack;
the test wheel is arranged in the wheel frame;
the pressurizing mechanism includes: a screw rotating disc and a screw; the top of the screw is provided with the screw rotating disc; the positive pressure sensor is arranged above a wheel frame at the top end of the test wheel, and the bottom end of the screw presses the positive pressure sensor;
one end of the braking force sensor is connected with the wheel frame, and the other end of the braking force sensor is connected with the disc brake; one end of the disc brake is mounted on a wheel shaft of the test wheel and can rotate around the wheel shaft, the other end of the disc brake is connected with the braking force sensor, and during braking, the braking force of the disc brake is fed back through the braking force sensor;
the rack is in a frame shape, the screw rotating disc is positioned above the rack, and the test wheel, the positive pressure sensor and the braking force sensor are positioned in the frame of the rack; the screw rod penetrates through a nut which is arranged on a fixing plate and matched with the screw rod from the upper part of the rack to reach the inside of a frame of the rack; four vertical cylindrical chromium-plated polish rods are arranged on the side face of the rack, two square linear bearings are sleeved on each polish rod, and the square linear bearings are arranged on the side face of the wheel frame of the test wheel, one above the other, so that the test wheel can freely slide up and down;
two sides of the rack are respectively provided with two hook mechanisms, and the rack is fixed on the inspection bench through four hook mechanisms.
Further, the hooking mechanism comprises: a strip plate with a strip hole in the middle part and an L-shaped clamping piece; one end of the L-shaped clamping piece penetrates through the strip hole in the strip plate and is fixed through a nut, and the other end of the L-shaped clamping piece is positioned below the strip plate and is parallel to the strip plate.
Further, the instrument box is arranged on the frame; the positive pressure sensor and the braking force sensor are respectively connected with the instrument box.
The utility model has the advantages that:
1. the testing wheel and the rack are integrated into a whole, and the integrated screw rod loading roller adhesion coefficient tester is designed, so that the size and the weight are moderate, and the carrying is convenient.
2. Four couple mechanisms catch on the lower edge of checkout stand marginal steel sheet, make the tester can stabilize on the checkout stand, simple to operate.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a right side view of fig. 1.
Fig. 5 is a schematic view of a partial structure inside the rack of the present invention.
[ detailed description ] embodiments
Referring to fig. 1 to 5, the adhesion coefficient tester for the integrated screw loading roller includes: the device comprises a test wheel 1, a wheel frame 2, a positive pressure sensor 3, a braking force sensor 4, a disc brake 5, a pressurizing mechanism 6 and a frame 7.
The test wheel 1 is arranged in the wheel frame 2; the wheel frame 2 is of a bridge structure, and the test wheel 1 is connected with the wheel frame 2 through a wheel shaft 11.
The pressurizing mechanism 6 includes: a screw turn plate 61, a screw 62; the top of the screw 62 is provided with the screw rotating disc 61, the positive pressure sensor 3 is arranged above the wheel frame 2 at the top end of the testing wheel 1, and the bottom end of the screw 62 presses the positive pressure sensor 3.
One end of the braking force sensor 4 is connected with the wheel frame 2, and the other end of the braking force sensor is connected with the disc brake 5; one end of the disc brake 5 is arranged on the wheel shaft 11 of the test wheel 1 and can rotate around the wheel shaft 11, the other end of the disc brake is connected with the braking force sensor 4, and during braking, the braking force of the disc brake 5 is fed back through the braking force sensor 4.
The frame 7 is in a frame shape, the screw rotating disc 61 is positioned above the frame, and the test wheel 1, the positive pressure sensor 3 and the braking force sensor 4 are positioned in the frame of the frame 1; the screw 62 passes through a nut 63 which is arranged on a fixing plate 71 and is matched with the screw 62 from the upper part of the frame 7 to reach the inside of the frame 7; four vertical cylindrical chromium-plated polish rods 72 are arranged on the side face of the rack 1, two square linear bearings 73 are sleeved on each polish rod 72, and the square linear bearings 73 are arranged on the side face of the wheel frame 2 of the test wheel 1 respectively in the vertical direction, so that the test wheel 1 can freely slide up and down.
Two hook mechanisms 74 are respectively arranged on two sides of the frame 7, and the frame 7 is fixed on the inspection bench through the four hook mechanisms 74.
Each hooking mechanism 74 comprises: a strip 741 having a hole in the middle, an L-shaped holder 742; one end of the L-shaped clamp 742 passes through a strip hole of the strip 741 and is fixed by a nut 743, and the other end is located below the strip 741 and is parallel to the strip 741.
The instrument box 8 is arranged on the frame 7; the positive pressure sensor 3 and the braking force sensor 4 are respectively connected with the instrument box 8.
When the device works, the tester is placed on the roller counter-force type automobile brake inspection bench, the tester is adjusted to enable the test wheel 1 to be vertically placed on an upper bus of a tested roller, the rotation axis of the test wheel 1 is parallel to the bus of the tested roller, and the locking hook mechanism 74 enables the tester to be stably fixed on the inspection bench. Rotating the screw rotating disc 61 to make the testing wheel 1 downward and press the roller, reading the positive pressure from the positive pressure sensor 3, generally requiring the positive pressure not less than 400N, after the positive pressure is stable, starting the driving motor of the roller to be tested to make the roller rotate, after the rotating speed of the roller is stable, slowly braking the testing wheel 1, after the disc brake 5 locks the testing wheel 1, the contact surface of the testing wheel 1 and the roller to be tested should be in a sliding state, and at this time, reading the adhesion coefficient value displayed by the tester of the meter box 8.
The utility model discloses a test wheel 1 and frame 7 integration are as an organic whole, design into integral type screw rod loading cylinder adhesion coefficient tester, and volume, weight are moderate, conveniently carry. Four couple mechanisms 74 catch the lower edge of checkout stand marginal steel sheet, make the tester can stabilize on the checkout stand, simple to operate.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. Integral type screw rod loading cylinder adhesion coefficient tester, its characterized in that: the method comprises the following steps: the device comprises a test wheel, a wheel frame, a positive pressure sensor, a braking force sensor, a disc brake, a pressurizing mechanism and a rack;
the test wheel is arranged in the wheel frame;
the pressurizing mechanism includes: a screw rotating disc and a screw; the top of the screw is provided with the screw rotating disc; the positive pressure sensor is arranged above a wheel frame at the top end of the test wheel, and the bottom end of the screw presses the positive pressure sensor;
one end of the braking force sensor is connected with the wheel frame, and the other end of the braking force sensor is connected with the disc brake; one end of the disc brake is mounted on a wheel shaft of the test wheel and can rotate around the wheel shaft, the other end of the disc brake is connected with the braking force sensor, and during braking, the braking force of the disc brake is fed back through the braking force sensor;
the rack is in a frame shape, the screw rotating disc is positioned above the rack, and the test wheel, the positive pressure sensor and the braking force sensor are positioned in the frame of the rack; the screw rod penetrates through a nut which is arranged on a fixing plate and matched with the screw rod from the upper part of the rack to reach the inside of a frame of the rack; four vertical cylindrical chromium-plated polish rods are arranged on the side face of the rack, two square linear bearings are sleeved on each polish rod, and the square linear bearings are arranged on the side face of the wheel frame of the test wheel, one above the other, so that the test wheel can freely slide up and down;
two sides of the rack are respectively provided with two hook mechanisms, and the rack is fixed on the inspection bench through four hook mechanisms.
2. The integrated screw loading drum adhesion coefficient tester of claim 1, wherein: each of the hook mechanisms, comprising: a strip plate with a strip hole in the middle part and an L-shaped clamping piece; one end of the L-shaped clamping piece penetrates through the strip hole in the strip plate and is fixed through a nut, and the other end of the L-shaped clamping piece is positioned below the strip plate and is parallel to the strip plate.
3. The integrated screw loading drum adhesion coefficient tester of claim 1, wherein: the instrument box is arranged on the frame; the positive pressure sensor and the braking force sensor are respectively connected with the instrument box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022737690.2U CN213842635U (en) | 2020-11-24 | 2020-11-24 | Integral screw loading roller adhesion coefficient tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022737690.2U CN213842635U (en) | 2020-11-24 | 2020-11-24 | Integral screw loading roller adhesion coefficient tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213842635U true CN213842635U (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022737690.2U Active CN213842635U (en) | 2020-11-24 | 2020-11-24 | Integral screw loading roller adhesion coefficient tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213842635U (en) |
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2020
- 2020-11-24 CN CN202022737690.2U patent/CN213842635U/en active Active
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