CN213580621U

CN213580621U - Pendulum type friction coefficient tester

Info

Publication number: CN213580621U
Application number: CN202021893681.6U
Authority: CN
Inventors: 唐利通
Original assignee: Tianjin Jiuhangshengtong Technology Co ltd
Current assignee: Tianjin Jiuhangshengtong Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-06-29
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses a pendulum-type friction coefficient apparatus belongs to test equipment technical field, including the triangle base, triangle base top fixedly connected with bracing piece and bracing piece are provided with two sets ofly, and are two sets of the bracing piece top all runs through in the expansion bracket bottom, the spout has all been seted up to the inside left and right sides of expansion bracket, spout internally mounted has sliding block and sliding block to be provided with two sets of equal fixed connection two sets ofly at the bracing piece top, sliding block outside openly seted up threaded hole b, threaded hole b closes with adjusting bolt spiral shell and is connected, the expansion bracket outside openly has been seted up inside through adjusting bolt of through-hole and through-hole, expansion bracket top fixedly connected with connecting block. The utility model discloses have two sets of bracing piece extending structure, just so can be so that the lift of this apparatus is more stable and the lift effect is better, this apparatus is convenient for remove and stops simultaneously, just so can be so that the use of this apparatus comparatively convenient and the practicality is stronger.

Description

Pendulum type friction coefficient tester

Technical Field

The utility model relates to a test equipment technical field especially relates to a pendulum-type friction coefficient apparatus.

Background

The friction coefficient of the pavement is an important index of the skid resistance of the asphalt pavement. Currently, there are two common methods for measuring the friction coefficient: one method is that the sensor is arranged on a test vehicle, and the friction coefficient of the road surface can be measured when the vehicle runs on the asphalt road surface, and the test cost of the test method is high; the other type is a road surface friction coefficient testing device, and the pendulum type friction coefficient tester is widely applied due to simple structure, portability and simple operation.

Patent No. CN202453281U discloses a pendulum type road surface friction coefficient measuring instrument. The instrument simplifies the process of checking the sliding length in the regulation requirement, shortens the time for measuring the friction coefficient, ensures that the operation is simpler and more convenient, improves the testing efficiency, reduces the errors of manual operation and has more accurate result.

The pendulum type road surface friction coefficient tester in the prior art has the following defects: 1. the two groups of support rod telescopic structures are not arranged, so that the lifting of the tester cannot be more stable and the lifting effect is not good; 2. the pendulum type friction coefficient measuring instrument is inconvenient to move and stop, so that the use of the measuring instrument is not convenient and the practicability is not strong, and therefore the pendulum type friction coefficient measuring instrument is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pendulum-type friction coefficient apparatus, this apparatus have two sets of bracing piece extending structure, just so can be so that the lift of this apparatus more stable and the lift effect better, this apparatus is convenient for remove and stop simultaneously, just so can be so that the use of this apparatus comparatively convenient and the practicality is stronger.

The utility model provides a specific technical scheme as follows:

the utility model provides a pendulum-type friction coefficient determinator, including the triangle base, triangle base top fixedly connected with bracing piece and bracing piece are provided with two sets, two sets of bracing piece top all runs through in the expansion bracket bottom, the expansion bracket is inside all seted up the spout in the left and right sides, the spout is internally mounted with the sliding block and the sliding block is provided with two sets of equal fixed connection in two sets of bracing piece top, the sliding block outside openly is seted up screw hole b, screw hole b is screwed with adjusting bolt and is connected, the expansion bracket outside openly is seted up the through-hole and the adjusting bolt has been run through to the through-hole inside, expansion bracket top fixedly connected with connecting block, the connecting block both sides are all fixedly connected with the handle, connecting block top fixedly connected with push rod, three sides on triangle base top all are seted up screw hole a, screw, the bottom of the rotating screw is fixedly connected with a support frame, and universal wheels are installed at three corners of the bottom of the triangular base.

Optionally, the telescopic frame is provided with a dial on the surface, and the dial is provided with a fastening bolt on the surface.

Optionally, the dial plate surface mounting has a dwang, the dwang surface runs through there is the pointer.

Optionally, the surface of the rotating rod penetrates through the oscillating rod, and a connecting plate is fixedly connected to one side of the dial.

Optionally, the bottom of the connecting plate is fixedly connected with a clamping frame, and one end of the oscillating bar is fixedly connected with a rubber sliding block.

The utility model has the advantages as follows:

the embodiment of the utility model provides a pendulum-type friction coefficient apparatus:

1. go up and down as required with installing the calibrated scale on expansion bracket surface, the bottom of expansion bracket is run through and is had two sets of bracing pieces and bracing piece bottom fixed connection at the triangle base, spout and spout internally mounted have a sliding block in the inside of expansion bracket, sliding block fixed connection is on the bracing piece top simultaneously, just so can make the expansion bracket pass through the sliding of sliding block in the spout inside and make the expansion bracket can go up and down on the bracing piece surface that the bottom runs through, through-hole that just can set up through the expansion bracket surface after the altitude mixture control of expansion bracket is good screwed the connection with the outside screw hole b of openly seting up of sliding block with adjusting bolt, just so can make the position of expansion bracket stabilize, this apparatus has two sets of bracing piece extending structure, just so can make the lift of this apparatus more stable and the lift effect better.

2. The device is placed on the flat ground through universal wheels arranged at three corners at the bottom of a triangular base, then a push rod can be pushed to enable the tester to be pushed to an appointed testing place through the movement of the universal wheels, when the tester arrives at the testing place to test, a rotating screw rod connected with a threaded hole a formed in the top end of each of the three corners of the triangular base in a threaded mode is rotated, then the rotating screw rod is rotated to enable the rotating screw rod to move downwards through the threaded hole a, the rotating screw rod can be stopped rotating when a support frame fixedly connected to the bottom of the rotating screw rod is in contact with the ground, then the support frame can support the tester, the tester can be conveniently moved and stopped, and therefore the tester can be used conveniently and is high in practicability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a pendulum-type friction coefficient measuring device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an expansion bracket of a pendulum-type friction coefficient measuring instrument according to an embodiment of the present invention.

In the figure: 1. a triangular base; 2. a support bar; 3. a pointer; 4. a dial scale; 5. fastening a bolt; 6. a handle; 7. connecting blocks; 8. a push rod; 9. rotating the rod; 10. a swing rod; 11. a connecting plate; 12. a clamping frame; 13. a rubber slider; 14. rotating the screw; 15. a threaded hole a; 16. a support frame; 17. a universal wheel; 18. a telescopic frame; 19. a threaded hole b; 20. a slider; 21. adjusting the bolt; 22. a chute; 23. and a through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An pendulum-type friction coefficient measuring device according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.

Referring to fig. 1-2, a pendulum-type friction coefficient measuring instrument provided by an embodiment of the present invention includes a triangular base 1, wherein two sets of support rods 2 are fixedly connected to the top end of the triangular base 1, the two sets of support rods 2 are disposed on the top end of the support rod 2, the two sets of support rods 2 are both penetrated through the bottom of an expansion frame 18, sliding grooves 22 are respectively disposed on the left and right sides of the inside of the expansion frame 18, sliding blocks 20 are mounted inside the sliding grooves 22, the sliding blocks 20 are respectively disposed on the top ends of the two sets of support rods 2, a threaded hole b19 is disposed on the front side of the outside of the sliding block 20, the threaded hole b19 is screwed with an adjusting bolt 21, a through hole 23 is disposed on the front side of the outside of the expansion frame 18, the adjusting bolt 21 is penetrated inside the through hole 23, a connecting block 7 is fixedly connected to, threaded hole a15 is all seted up on three sides of triangle base 1 top, threaded hole a15 is screwed with rotation screw 14 and is connected, rotation screw 14 bottom fixedly connected with support frame 16, universal wheel 17 is all installed to three angles in triangle base 1 bottom.

For example, the device is placed on a flat ground through universal wheels 17 arranged at three corners of the bottom of a triangular base 1, then a push rod 8 is pushed to push the measuring instrument to a specified measuring place through the movement of the universal wheels 17, when the measuring instrument arrives at the measuring place to measure, a rotating screw 14 in threaded connection with threaded holes a15 arranged at the top ends of the three corners of the triangular base 1 is rotated, then the rotating screw 14 is rotated to make the rotating screw 14 move downwards through a threaded hole a15, when a support frame 16 fixedly connected with the bottom of the rotating screw 14 contacts the ground, the rotating screw 14 is stopped rotating, then the support frame 16 can support the measuring instrument, when the measuring instrument is placed, the measuring instrument can be measured, firstly, a dial 4 arranged on the surface of an expansion bracket 18 is lifted according to needs, two groups of support rods 2 penetrate through the bottom of the expansion bracket 18, the bottoms of the support rods 2 are fixedly connected to the triangular base 1, the sliding groove 22 is formed in the telescopic frame 18, the sliding block 20 is installed in the sliding groove 22, and meanwhile the sliding block 20 is fixedly connected to the top end of the supporting rod 2, so that the telescopic frame 18 can slide in the sliding groove 22 through the sliding block 20 to enable the telescopic frame 18 to ascend and descend on the surface of the supporting rod 2 penetrating through the bottom, after the height of the telescopic frame 18 is adjusted, the adjusting bolt 21 can be screwed and connected with the threaded hole b19 formed in the front face of the outer portion of the sliding block 20 through the through hole 23 formed in the surface of the telescopic frame 18, and therefore the position of the telescopic frame 18 can be stabilized, and then the measuring instrument can be used for measuring.

Referring to fig. 1, the telescopic bracket 18 is surface-mounted with the scale plate 4, and the scale plate 4 is surface-mounted with the fastening bolt 5.

Illustratively, the dial plate 4 is fixed on the surface of the expansion bracket 18 through a fastening bolt 5.

Referring to fig. 1, the dial 5 is surface-mounted with a rotating rod 9, and the pointer 3 penetrates through the surface of the rotating rod 9.

For example, the pointer 3 is rotated by the rotating rod 9, and then the oscillating rod 10 slides on the road surface, so that the pointer 3 can indicate the road surface friction coefficient.

Referring to fig. 1, a swing rod 10 penetrates through the surface of the rotating rod 9, and a connecting plate 11 is fixedly connected to one side of the dial 4.

By way of example, the connecting plate 11 beside the dial 4 may serve as a clamping function for the swing rod 10 penetrating through the surface of the rotating rod 9.

Referring to fig. 1, a clamping frame 12 is fixedly connected to the bottom of the connecting plate 11, and a rubber slider 13 is fixedly connected to one end of the swing rod 10.

For example, the rubber slide block 13 is used for eliminating loose particles and impurities on the road surface in the swing range so as to calibrate the sliding length, and the clamping frame 12 can clamp the swing rod 10.

When the device is used, universal wheels 17 arranged at three corners at the bottom of a triangular base 1 are placed on a flat ground, then a push rod 8 can be pushed to enable the tester to be pushed to a specified testing place through the movement of the universal wheels 17, when the tester arrives at the testing place to be tested, a rotating screw 14 in threaded connection with threaded holes a15 formed in the top ends of the three corners of the triangular base 1 is rotated, then the rotating screw 14 is rotated to enable the rotating screw 14 to move downwards through the threaded holes a15, when a support frame 16 fixedly connected with the bottom of the rotating screw 14 contacts the ground, the rotating screw 14 can be stopped to rotate, then the support frame 16 can support the tester, when the tester is placed, the testing can be carried out, firstly, a dial 4 arranged on the surface of an expansion bracket 18 is lifted according to needs, two groups of support rods 2 penetrate through the bottom of the expansion bracket 18, and the bottoms of the support rods 2 are fixedly connected to the triangular base 1, a sliding groove 22 is formed in the telescopic frame 18, a sliding block 20 is installed in the sliding groove 22, the sliding block 20 is fixedly connected to the top end of the supporting rod 2, the telescopic frame 18 can be lifted on the surface of the supporting rod 2 penetrating through the bottom through the sliding of the sliding block 20 in the sliding groove 22, after the height of the telescopic frame 18 is adjusted, an adjusting bolt 21 can be screwed and connected with a threaded hole b19 formed in the front face of the outer portion of the sliding block 20 through a through hole 23 formed in the surface of the telescopic frame 18, the position of the telescopic frame 18 can be stabilized, then the measuring instrument can be used for measuring, loose particles and impurities on the road surface in a swinging range are eliminated through a rubber sliding block 13 to calibrate the sliding length, then the road surface is sprayed with water, the rubber sliding block 13 is used for brushing to wash away mud, then the water is sprayed, and a swing rod in the clamping frame 12 is released, the pendulum rod 10 slides on the road surface, the pointer 3 can indicate the friction coefficient of the road surface (generally, the first time is not recorded), when the pendulum rod 10 moves rightwards, the pendulum rod 10 is connected with the left hand, five times are measured, the numerical value of each time is recorded, the difference of the five times is not more than three units, (namely, one half of a scale is used for checking the reason if the difference is more than three units), and the operations are repeated until the difference meets the regulation.

The utility model relates to a pendulum type friction coefficient measuring instrument, which comprises a base 1 and a triangular base; 2. a support bar; 3. a pointer; 4. a dial scale; 5. fastening a bolt; 6. a handle; 7. connecting blocks; 8. a push rod; 9. rotating the rod; 10. a swing rod; 11. a connecting plate; 12. a clamping frame; 13. a rubber slider; 14. rotating the screw; 15. a threaded hole a; 16. a support frame; 17. a universal wheel; 18. a telescopic frame; 19. a threaded hole b; 20. a slider; 21. adjusting the bolt; 22. a chute; 23. the through-holes and the components are all universal standard parts or components known to those skilled in the art, and the structure and the principle of the through-holes and the components are known to those skilled in the technical manual or known by the routine experiment method.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A pendulum-type friction coefficient tester comprises a triangular base (1) and is characterized in that supporting rods (2) are fixedly connected to the top end of the triangular base (1), two groups of supporting rods (2) are arranged, the top ends of the two groups of supporting rods (2) penetrate through the bottom of an expansion bracket (18), sliding grooves (22) are formed in the left side and the right side of the interior of the expansion bracket (18), sliding blocks (20) are installed in the sliding grooves (22), the two groups of sliding blocks (20) are fixedly connected to the top ends of the two groups of supporting rods (2), a threaded hole b (19) is formed in the front of the exterior of each sliding block (20), the threaded hole b (19) is in threaded connection with an adjusting bolt (21), a through hole (23) is formed in the front of the exterior of the expansion bracket (18), an adjusting bolt (21) penetrates through the interior of the through hole (23), and a connecting, equal fixedly connected with handle (6) in both sides about connecting block (7), connecting block (7) top fixedly connected with push rod (8), threaded hole a (15) have all been seted up to triangle base (1) top three sides, threaded hole a (15) are screwed with rotation screw rod (14) and are connected, rotation screw rod (14) bottom fixedly connected with support frame (16), universal wheel (17) are all installed to three angles in triangle base (1) bottom.

2. Pendulum-type friction coefficient measuring device according to claim 1, characterized in that said telescopic bracket (18) is surface mounted with a scale disc (4), said scale disc (4) being surface mounted with fastening bolts (5).

3. Pendulum-type friction coefficient measuring device according to claim 2, characterized in that the dial (4) is surface mounted with a rotating lever (9), the surface of the rotating lever (9) is penetrated with the pointer (3).

4. The pendulum-type friction coefficient measuring instrument according to claim 3, wherein a pendulum rod (10) penetrates through the surface of the rotating rod (9), and a connecting plate (11) is fixedly connected to one side of the dial (4).

5. The pendulum-type friction coefficient measuring instrument according to claim 4, wherein a holder (12) is fixedly connected to the bottom of the connecting plate (11), and a rubber slider (13) is fixedly connected to one end of the pendulum rod (10).