CN215218498U

CN215218498U - Friction detection device

Info

Publication number: CN215218498U
Application number: CN202121239516.3U
Authority: CN
Inventors: 陈波; 徐浩; 李彩霞
Original assignee: Chongqing Hexin Inspection And Certification Co ltd
Current assignee: Chongqing Testing Co Ltd Of Guojian Testing Holding Group
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-17
Anticipated expiration: 2031-05-31

Abstract

The utility model provides a friction detection device, a serial communication port, include: the device comprises a supporting base, supporting columns, fixing rods, a swing rod, a swing head, a dial, a positioning pin, a pointer and a fixing groove; the yaw includes connecting block, bearing, rotatory pole, rubber slide and sleeve pipe, the utility model discloses in the technique, the sleeve pipe with rubber slide fixed connection, the cover pipe box is located the outer wall of bearing will the rotatory pole passes during the bearing, the rotatory pole can pass between the gap of butt piece, the butt piece passes through the sliding block is in the assorted the spout slides to both sides, and passes the through-hole gomphosis in the butt recess, the external screw thread of rotatory pole with threaded connection is realized to the sheathed tube internal thread, the utility model discloses change rubber slide saves time and light again, has improved measuring efficiency.

Description

Friction detection device

Technical Field

The utility model relates to a road surface check out test set's technical field especially relates to a friction detection device.

Background

The pendulum type instrument is generally used for measuring the anti-skid value of an asphalt pavement, a marking or other material test piece, is used for evaluating the anti-skid capability of the pavement or the pavement material test piece in a wet state, and is one of the test devices commonly used in the field test of the roadbed and the pavement. At present, there are two methods for determining the skid resistance value of the road surface specified by the regulations: pendulum type friction coefficient measuring instruments (pendulometers) and friction coefficient measuring vehicles. The pendulum-type instrument is low in price, convenient to carry, simple in principle, low in detection cost and wide in application in engineering. The current regulations for pendulum type friction coefficient measuring instruments in the highway subgrade and pavement on-site test regulations (JGJ059-95) are used for comprehensively evaluating the pavement friction coefficient by measuring the pendulum height, namely the pendulum value (BPN) generated by a certain sliding length (126mm) of a pendulum arm on a pavement. The performance requirements of the instrument are as follows: the total mass of the pendulum and the connecting part of the pendulum is as follows: 1500g +30 g; the positive pressure of the rubber sheet on the road surface is as follows: 22.2N +0.5N, and so on. The general technical requirements are as follows: the appearance of the pendulum should be smooth and flat, the dial should be clear, etc. The test operation requires leveling, zeroing, checking the sliding length, etc.

At present, the rubber sliding block loss of friction is very fast for the pendulum-type appearance commonly used, needs often to be changed, and current change is very loaded down with trivial details again and takes time, influences measuring efficiency.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a friction detection device to traditional technique changes the loaded down with trivial details technical problem that takes time again of rubber slide in solving the correlation technique.

The utility model provides a friction detection device, which comprises a supporting base, a supporting column, a fixed rod, a swing head, a dial, a positioning pin, a pointer and a fixed groove;

the supporting column is vertically connected with the supporting base, the fixed rod is fixedly arranged on one side of the supporting column, the fixed groove is formed in one end, away from the supporting column, of the fixed rod, the pointer and the swing rod are connected with the dial through the positioning pin, and the swing head is connected to one end, away from the positioning pin, of the swing rod;

the swing head comprises a connecting block, a bearing, a rotating rod, a rubber sliding block and a sleeve, the interior of the swing head is hollow, the connecting block is fixedly arranged on one side inside the swinging head, the bearing is fixedly connected with the connecting block, the inner walls of the two corresponding sides of the bearing are provided with sliding chutes, the other two corresponding sides of the bearing are provided with through holes which penetrate through the inner walls, a sliding block matched with the sliding groove is arranged in the sliding groove, one end of the sliding block is provided with a butting block, the abutting blocks are connected through a telescopic spring, the rubber sliding block is fixedly connected with the outer wall of the sleeve, the inner wall of the sleeve is provided with an abutting groove, the bottom of the inner wall of the sleeve is provided with an internal thread, the bottom of the rotating rod is provided with an external thread, the sleeve is sleeved on the outer wall of the bearing, and the rotating rod penetrates through the bearing and is in threaded connection with the internal thread at the bottom of the sleeve.

Optionally, a height adjusting knob is further disposed on the supporting column.

Optionally, the supporting base is a triangular supporting base, and an adjusting screw is further arranged at one end, away from the middle of the supporting base, of each corner of the supporting base.

Optionally, a level bubble is further disposed on the supporting base.

Optionally, a handle is further disposed on the top of the supporting column.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in the technique, the sleeve pipe with rubber slider fixed connection, the sleeve pipe cover is located the outer wall of bearing will the rotating pole passes during the bearing, the rotating pole can pass between the gap of butt piece, the butt piece passes through the sliding block is in the assorted the spout slides to both sides, and passes the through-hole gomphosis in the butt recess, the external screw thread of rotating pole with threaded connection is realized to the sheathed tube internal thread, the utility model discloses change rubber slider saves time and light again, has improved measuring efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the enlarged structure of the swing head of the present invention;

fig. 3 is a schematic top sectional view of the bearing of the present invention;

fig. 4 is a schematic structural diagram of the front side of the sleeve of the present invention;

FIG. 5 is a schematic view of the structure of the rotating rod of the present invention;

fig. 6 is a schematic view of the top view structure of the supporting base of the present invention.

The reference numbers illustrate:

1. a support base; 2. a support pillar; 3. fixing the rod; 4. fixing grooves; 5. a pointer; 6. a swing rod; 7. positioning pins; 8. a dial scale; 9. swinging the head; 10. connecting blocks; 11. a bearing; 12. rotating the rod; 13. a rubber slider; 14. a sleeve; 15. a chute; 16. a through hole; 17. a slider; 18. a butting block; 19. a spring; 20. abutting against the groove; 21. an internal thread; 22. an external thread; 23. a height adjustment knob; 24. adjusting the screw rod; 25. a level bubble; 26. a handle.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present invention more clearly understood, the following technical solutions of the present invention are further described with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 6, the present invention provides a friction detection device, which comprises a support base 1, a support column 2, a fixing rod 3, a swing rod 6, a swing head 9, a dial 8, a positioning pin 7, a pointer 5 and a fixing groove 4;

the supporting column 2 is vertically connected with the supporting base 1, the fixed rod 3 is fixedly arranged on one side of the supporting column 2, the fixed groove 4 is arranged at one end, far away from the supporting column 2, of the fixed rod 3, the pointer 5 and the swing rod 6 are connected with the dial 8 through the positioning pin 7, and the swing head 9 is connected at one end, far away from the positioning pin 7, of the swing rod 6;

the swing head 9 comprises a connecting block 10, a bearing 11, a rotating rod 12, a rubber sliding block 13 and a sleeve 14, the interior of the swing head 9 is hollow, the connecting block 10 is fixedly arranged on one side of the interior of the swing head 9, the bearing 11 is fixedly connected with the connecting block 10, sliding grooves 15 are formed in inner walls of two corresponding sides of the bearing 11, through holes 16 penetrating through the inner wall are formed in two other corresponding sides of the bearing 11, sliding blocks 17 matched with the sliding grooves 15 are arranged in the sliding grooves 15, a butting block 18 is arranged at one end of each sliding block 17, the butting blocks 18 are connected through a telescopic spring 19, the rubber sliding block 13 is fixedly connected with the outer wall of the sleeve 14, a butting groove 20 is formed in the inner wall of the sleeve 14, an internal thread 21 is formed in the bottom of the inner wall of the sleeve 14, an external thread 22 is formed in the bottom of the rotating rod 12, and the sleeve 14 is sleeved on the outer wall of the bearing 11, the rotating rod 12 passes through the bearing 11 and is in threaded connection with the internal thread 21 at the bottom of the sleeve 14.

In this embodiment, the sleeve 14 is fixedly connected to the rubber sliding block 13, the sleeve 14 is sleeved on the outer wall of the bearing 11, when the rotating rod 12 passes through the bearing 11, the rotating rod 12 passes through the gap between the abutting blocks 18, the abutting blocks 18 slide in the matching sliding grooves 15 to both sides through the sliding blocks 17, and pass through the through holes 16 to be embedded in the abutting grooves 20, when the rotating rod 12 moves to the bottom of the sleeve 14, the external threads 22 of the rotating rod 12 are in threaded connection with the internal threads 21 of the sleeve 14, so that rapid installation is achieved, and the position of the bearing 11 is fixed, so that the rubber sliding block 13 is fixed each time, adjustment after replacement is not needed, operation is time-saving and easy, and measurement efficiency is improved.

Optionally, a height adjusting knob 23 is further disposed on the supporting column 2.

In this embodiment, the height adjusting knob 23 is used to adjust the height of the supporting column 2, adjust the distance between the swing head 9 and the measuring surface, and can adapt to different measuring scenes.

Optionally, the supporting base 1 is a triangular supporting base, and an adjusting screw 24 is further disposed at one end of each corner of the supporting base 1, which is far away from the middle of the supporting base 1.

In this embodiment, the supporting base 1 is a triangular supporting base, so that the stability is better, and the supporting base 1 needs to be adjusted to be horizontal through the adjusting screw 24 because the tested ground is not a horizontal ground.

Optionally, a leveling bubble 25 is further disposed on the supporting base 1.

In this embodiment, the level bubble 25 is provided, and whether or not the support base 1 is horizontal is determined by observing the level bubble 25.

Optionally, a handle 26 is further provided on the top of the support column 2.

In this embodiment, the measuring position often needs to be changed among the measuring process, through the top of support column 2 sets up handle 26, conveniently draws friction detection device, is convenient for remove the change measuring position.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A friction detecting device, comprising: the device comprises a supporting base, supporting columns, fixing rods, a swing rod, a swing head, a dial, a positioning pin, a pointer and a fixing groove;

2. The friction detecting device according to claim 1, wherein a height adjusting knob is further provided on the supporting post.

3. The friction detecting device as claimed in claim 2, wherein the supporting base is a triangular supporting base, and an adjusting screw is further provided at an end of each corner of the supporting base away from the middle of the supporting base.

4. A friction detecting device according to claim 3 wherein a level bubble is also provided in the middle of said support base.

5. A friction detecting device according to any one of claims 1 to 4 wherein the top of the support post is further provided with a handle.