CN218496726U - Road surface pendulum type friction test equipment - Google Patents

Abstract

The utility model belongs to the technical field of the road detection and specifically relates to a road surface pendulum-type friction test equipment is related to, the on-line screen storage device comprises a base, the grudging post, the calibrated scale, the pointer, swing subassembly, the push rod, release arm and release switch, the grudging post is installed in the base, the calibrated scale is installed in the grudging post, the push rod is installed in swing subassembly, and the push rod is used for driving the pointer swing, release arm fixed mounting is in the calibrated scale, and release arm is used for supplying swing subassembly to carry out initial release position fixed, release switch installs in release arm, and release switch is used for releasing swing subassembly, threaded connection has adjusting screw on the push rod, and adjusting screw is used for zeroing to the pointer. Before the test, a tester firstly carries out zero setting processing on the pointer through the adjusting screw, so that the swinging assembly can drive the pointer to the position where the dial is indicated as zero under the idle running state, the influence caused by the pretightening force generated by the change between the pointer and the swing shaft is eliminated, and the reliability of the measuring result of the follow-up test can be guaranteed.

Description

Pendulum-type friction test equipment in road surface

Technical Field

The application relates to the field of road detection, in particular to a road surface swing type friction test device.

Background

As is well known, the existing roads need to be detected from time to time, so as to facilitate the understanding of various data of the road surface and further to indicate directions for the maintenance of the roads. In the conventional road detection, the detection of the friction degree or smoothness is indispensable. In general, the detection of the friction degree is performed by using a pendulum type measuring instrument.

The utility model with application number CN201620042957.7 discloses a pendulum type friction coefficient measuring instrument, in the measuring process, a swinging component drives a pointer to swing around a pendulum shaft through a push rod, so that the pointer can display the measuring result on a dial.

However, as the number of times of testing increases, the pretightening force between the pointer and the swing shaft changes, and the measuring result of a subsequent experiment is seriously influenced. Therefore, further improvements can be made.

Disclosure of Invention

In order to improve the reliability of the measurement result of the experiment, the application provides a road surface pendulum type friction test device.

The application provides a road surface pendulum type friction test equipment adopts following technical scheme:

the utility model provides a road surface pendulum-type friction test equipment, includes base, grudging post, calibrated scale, pointer, swing subassembly, push rod, release arm and release switch, the grudging post is installed in the base, the calibrated scale is installed in the grudging post, pointer and swing subassembly are all rotated and are installed the balance staff on the calibrated scale, the push rod is installed in the swing subassembly, just the push rod is used for driving the pointer swing, release arm fixed mounting is in the calibrated scale, just the release arm is used for supplying the swing subassembly to carry out initial release position fixed, release switch installs in the release arm, just release switch is used for releasing the swing subassembly, threaded connection has adjusting screw on the push rod, just adjusting screw is used for zeroing the pointer.

By adopting the technical scheme, before a test, a tester firstly carries out zero setting processing on the pointer through the adjusting screw, so that the swinging assembly can drive the pointer to the dial to indicate the zero position in the idle running state, the influence caused by the changed pretightening force between the pointer and the swing shaft is eliminated, and the reliability of the measuring result of the subsequent test can be ensured.

Optionally, the swing assembly includes a swing seat, a swing rod, a pendulum bob and a test rubber sheet, the swing seat and the pendulum bob are respectively and fixedly mounted at two ends of the swing rod, the test rubber sheet is mounted at the bottom of the pendulum bob, and the swing seat is rotatably mounted on a swing shaft; the push rod is fixedly arranged at one end, far away from the swing rod, of the swing seat.

Through adopting above-mentioned technical scheme, in carrying out the experimentation, when the tester released the swing subassembly through release switch, the pendulum rod drove the pendulum and carries out the lower hem and rotate, made the push rod promote the pointer and carry out the linkage rotation. Meanwhile, when the pendulum bob swings to the lowest point position, the test rubber sheet rubs on the road surface to be tested, and then the test rubber sheet can be converted into momentum loss of the swing assembly. The swing assembly then continues to swing to bring the pointer to the dial to display the test results.

Optionally, a connecting cylinder for inserting the swing rod is fixed on the swing seat, a plurality of elastic tightening pieces are integrally formed at one end of the connecting cylinder, which is far away from the swing seat, and the elastic tightening pieces are circumferentially arranged around a central shaft of the connecting cylinder; the connecting cylinder is provided with an opening clamp sleeved on the elastic tightening pieces, and the opening clamp is used for tightening the elastic tightening pieces.

Through adopting above-mentioned technical scheme, at the equipment swing subassembly in-process, the tester is at first pegged graft the pendulum rod in the connecting cylinder, then the tester locates the elasticity with opening clamping cover and tightens up the piece, and tightens up the elasticity and tightens up the piece to be fixed in the pendulum seat with the pendulum rod. The assembling mode can facilitate the tester to complete the assembling and disassembling work of the swing assembly.

Optionally, the base includes a central table and a plurality of supporting legs mounted on a side surface of the central table, and the supporting legs are arranged at intervals; each supporting leg is horizontally arranged and extends along the direction away from the central table; one end of the supporting leg, which is far away from the central table, is in threaded connection with a leveling bolt; the vertical frame is fixed on the center platform.

By adopting the technical scheme, before the test experiment, a tester carries out leveling treatment on the base through the leveling bolt so as to level the whole experimental equipment. Simultaneously, in the use, because the distance is than far away between a plurality of supporting legss in the base, can improve the support stability of whole equipment, make whole equipment be difficult for taking place to empty the situation.

Optionally, a bubble level gauge is mounted on the base.

By adopting the technical scheme, in the leveling process, a tester can refer to the bubble level gauge, so that the leveling work is conveniently finished.

Optionally, the calibrated scale is installed in the stand through the slide, the slide slides and sets up in the stand, just threaded connection has the fixing bolt who is used for locking the slide on the slide.

Through adopting above-mentioned technical scheme, in the use, the tester can move the regulation to the calibrated scale along the grudging post to adjust the position that can carry out the friction test with the road surface that awaits measuring with the test rubber piece on the pendulum.

Optionally, the vertical frame includes a main upright and two auxiliary uprights fixedly mounted on the top of the main upright, the number of the sliding seats is two, and the two sliding seats are respectively slidably mounted on the main upright and the auxiliary uprights; the upper end and the lower end of the back surface of the dial are respectively fixed on the two sliding seats.

Through adopting above-mentioned technical scheme, because but calibrated scale back top is installed in the grudging post through two slide slidable control formulas, the installation stability of calibrated scale is higher, and in subsequent experimentation, the calibrated scale is difficult for taking place to rock, can further ensure the reliability of experimental result.

Optionally, a mounting bottom plate is fixed at the top of the vertical frame, the two auxiliary vertical rods are vertically fixed at two sides of the top of the mounting bottom plate, and the tops of the two auxiliary vertical rods are connected through a mounting top plate; and the top of the mounting top plate is also fixedly provided with a handle.

By adopting the technical scheme, the handle is arranged, so that the tester can carry the equipment to move through the handle, and the tester can move the equipment conveniently.

In summary, the present application includes at least one of the following beneficial technical effects:

before the test, a tester firstly carries out zero setting treatment on the pointer through the adjusting screw, so that the swinging assembly can drive the pointer to a dial to indicate a zero position in a no-load running state, the influence caused by the changed pretightening force between the pointer and the swing shaft is eliminated, and the reliability of the measurement result of the subsequent test can be guaranteed;

in the process of assembling the swing assembly, a tester firstly inserts the swing rod into the connecting cylinder in an inserting mode, then places the opening clamping sleeve on the elastic tightening piece, and tightens the elastic tightening piece so as to fix the swing rod on the swing seat. The assembling mode can facilitate the tester to complete the assembling and disassembling work of the swing assembly;

due to the arrangement of the handle, a tester can lift the equipment through the handle to move the equipment, and the tester can move the equipment conveniently.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is a schematic view of the entire structure of the swing assembly in embodiment 1 of the present application.

Fig. 3 is a view showing the structure of a base and a stand in embodiment 1 of the present application.

Fig. 4 is a schematic view of the overall structure of embodiment 2 of the present application.

Description of the reference numerals:

1. a base; 11. a center table; 12. supporting legs; 13. leveling bolts; 14. a bubble level; 2. erecting a frame; 21. a main upright stanchion; 22. auxiliary upright rods; 23. mounting a bottom plate; 24. installing a top plate; 25. a slide base; 26. fixing the bolt; 27. a handle; 3. a dial; 4. a pointer; 5. a swing assembly; 51. a swinging seat; 52. a swing rod; 53. a pendulum bob; 54. testing the rubber sheet; 55. fixing the snap ring; 56. a connecting cylinder; 57. an elastic tightening tab; 58. an opening clamp; 59. a lifting hook; 6. a push rod; 61. an adjusting screw; 7. a release arm; 71. a release switch; 8. crashproof cushion.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses road surface pendulum type friction test equipment.

Example 1:

referring to fig. 1, the road surface pendulum type friction test device comprises a base 1, a stand 2, a dial 3, a pointer 4, a swing assembly 5, a push rod 6, a release arm 7 and a release switch 71; wherein, grudging post 2 fixed mounting is in base 1, and calibrated scale 3 is installed in grudging post 2, and calibrated scale 3 vertical setting. Pointer 4 and swing subassembly 5 all rotate the pendulum shaft of installing in calibrated scale 3 top, and push rod 6 is installed in swing subassembly 5 top, and when swing subassembly 5 lower hem, push rod 6 drives pointer 4 and carries out linkage lower hem. The release arm 7 is fixedly mounted on the right side of the dial 3, and the release switch 71 is mounted on the release arm 7.

Referring to fig. 1 and 2, in particular, the swing assembly 5 includes a swing seat 51, a swing rod 52, a pendulum 53 and a test rubber sheet 54; the swing seat 51 and the pendulum 53 are respectively fixedly mounted at two ends of the swing rod 52, and the swing seat 51 is rotatably mounted on the swing shaft. The test rubber sheet 54 is arranged at the bottom of the pendulum bob 53, and the push rod 6 is fixedly arranged at one end of the pendulum seat 51 far away from the pendulum rod 52.

Before performing the experiment, the tester stirs the pointer 4 and the swing assembly 5 to rotate to the right horizontal state, and simultaneously fixes the swing assembly 5 to the release arm 7 through the fixing snap ring 55 so as to form an initial release position fixing preparation. During the test, the tester releases the swinging assembly 5 through the release switch 71 to swing downwards, and the swinging rod 52 drives the swinging hammer 53 to swing downwards, so that the push rod 6 pushes the pointer 4 to swing downwards in a linkage manner. Meanwhile, when the pendulum bob 53 swings to the lowest point, the test rubber sheet 54 rubs on the road surface to be tested, and then the momentum loss of the swing assembly 5 can be converted. The oscillating assembly 5 then continues to oscillate to bring the needle 4 to the dial 3 to display the test result.

In this embodiment, the adjusting screw 61 is connected to the push rod 6 through a thread, and before a test is performed, a tester first performs zero adjustment processing on the pointer 4 through the adjusting screw 61, so that the swing assembly 5 can drive the pointer 4 to the position where the dial 3 indicates zero in an idle running state, and influence caused by a pretightening force generated by change between the pointer 4 and the swing shaft is eliminated, thereby ensuring reliability of a measurement result of a subsequent test.

Referring to fig. 2, specifically, a connecting cylinder 56 for the swing rod 52 to be inserted is fixed on the swing seat 51, a plurality of elastic tensioning pieces 57 are integrally formed at one end of the connecting cylinder 56 far away from the swing seat 51, and the elastic tensioning pieces 57 are circumferentially spaced around a central axis of the connecting cylinder 56. Install opening clip 58 on the connecting cylinder 56, at the equipment swing subassembly 5 in-process, peg graft pendulum rod 52 in connecting cylinder 56 as the tester, the tester locates elasticity tightening sheet 57 with opening clip 58 cover, and tightens up elasticity tightening sheet 57 through the bolt and nut of screwing on opening clip 58 to be fixed in pendulum seat 51 with pendulum rod 52. The assembling mode can facilitate the tester to complete the assembling and disassembling work of the swing assembly 5.

The pendulum 53 is also fixedly provided with a lifting hook 59 at the right end, and in the resetting process, a tester can pull the pendulum 53 and the swing rod 52 to swing to the resetting position through the lifting hook 59.

Referring to fig. 3, the base 1 includes a center base 11 and a plurality of support legs 12 mounted on a side surface of the center base 11. In this embodiment, the number of the supporting legs 12 is three, and the three supporting legs 12 are fixedly mounted on the left and right sides and the back side of the center base 11, respectively. Every supporting legs 12 all sets up horizontally, and every supporting legs 12 all extends along keeping away from central platform 11 direction. One end of each supporting foot 12, which is far away from the central table 11, is in threaded connection with a leveling bolt 13, and the base 1 is supported on the ground through the leveling bolts 13.

Before the test experiment, a tester carries out leveling treatment on the base 1 through the leveling bolt 13 so as to level the whole experimental equipment. Meanwhile, in the using process, because the distance between the supporting legs 12 in the base 1 is relatively long, the supporting stability of the whole equipment can be improved, and the whole equipment is not easy to topple.

The base 1 is provided with a bubble level gauge 14, and the bubble level gauge 14 is fixedly arranged on the top of the supporting leg 12 on the right side. During the leveling process, a tester can perform reference through the bubble level gauge 14, so that the leveling work is conveniently completed.

With reference to fig. 1 and 3, in particular, the stand 2 comprises a main upright 21 and two auxiliary uprights 22 fixedly mounted on top of the main upright 21. Wherein, main pole setting 21 fixed mounting is in central platform 11, and main pole setting 21 top is fixed with mounting plate 23, and two are assisted pole setting 22 and are fixed mounting in mounting plate 23 top both sides respectively, and two are assisted the pole setting 22 tops and are connected fixedly through installation roof 24. Two slide bases 25 are arranged on the vertical frame 2, one slide base 25 is arranged on the main vertical rod 21 in a sliding mode, the other slide base 25 is arranged on the two auxiliary vertical rods 22 in a sliding mode, the upper end and the lower end of the back face of the dial 3 are respectively fixed on the two slide bases 25 through screws, and fixing bolts 26 used for locking the slide bases 25 are arranged on each slide base 25 in a threaded mode.

In the use, the tester can move the dial 3 along the stand 2 and adjust to adjust the position that can carry out the friction test with the road surface that awaits measuring with test rubber sheet 54 on pendulum 53. Simultaneously, because but dial 3 back top is installed in grudging post 2 through two slide 25 slidable adjustment formula, dial 3's installation stability is higher, in subsequent experimentation, dial 3 is difficult for taking place to rock, can further ensure the reliability of experimental result.

Specifically, the bottoms of the auxiliary vertical rods 22 are stepped, and the bottoms of the two auxiliary vertical rods 22 penetrate through the mounting base plate 23 and then are fixed on the mounting base plate 23 through bolts, so that the auxiliary vertical rods 22 and the mounting base plate 23 are detachably connected.

In this embodiment, a handle 27 is further fixedly mounted on the top of the mounting top plate 24, so that a tester can lift the device through the handle 27 for moving, and the tester can move the device conveniently.

Example 2:

referring to fig. 4, the present embodiment is different from embodiment 1 in that the front end of the pendulum 53 is fixedly wrapped with a crash pad 8. In the process of testing, when the tester is bumped by pendulum 53 carelessly, crashproof cushion 8 can attenuate impact energy, can reduce the impact injury that pendulum 53 caused to the tester.

The implementation principle is as follows: before the experiment, a tester firstly performs zero adjustment on the pointer 4 through the adjusting screw 61, so that the swinging assembly 5 can drive the pointer 4 to the position where the dial 3 indicates zero in the idle running state, and the influence caused by the changed pretightening force between the pointer 4 and the swinging shaft is eliminated.

Then, the tester dials the indicating needle 4 and the swing member 5 to rotate to the right horizontal state, and at the same time, the swing member 5 is fixed to the release arm 7 by the fixing clip 55 to form an initial release position fixing preparation.

Then, the tester releases the swinging assembly 5 through the release switch 71 to swing downwards, and the swinging rod 52 drives the swinging hammer 53 to swing downwards, so that the push rod 6 pushes the pointer 4 to rotate in a linkage manner. Meanwhile, when the pendulum bob 53 swings to the lowest point, the test rubber sheet 54 rubs on the road surface to be tested, and then the momentum loss of the swing assembly 5 can be converted. The oscillating assembly 5 then continues to oscillate to bring the needle 4 to the dial 3 to display the test result.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a road surface pendulum-type friction test equipment, includes base (1), grudging post (2), calibrated scale (3), pointer (4), swing subassembly (5), push rod (6), release arm (7) and release switch (71), grudging post (2) are installed in base (1), calibrated scale (3) are installed in grudging post (2), pointer (4) and swing subassembly (5) all rotate the pendulum shaft of installing on calibrated scale (3), install in swing subassembly (5) push rod (6), just push rod (6) are used for driving pointer (4) swing, release arm (7) fixed mounting is in calibrated scale (3), just release arm (7) are used for supplying swing subassembly (5) to carry out initial release position fixed, release switch (71) are installed in release arm (7), just release switch (71) are used for releasing swing subassembly (5), its characterized in that: and the push rod (6) is in threaded connection with an adjusting screw (61), and the adjusting screw (61) is used for zeroing the pointer (4).

2. The road surface pendulum type friction test device of claim 1, characterized in that: the swinging assembly (5) comprises a swinging seat (51), a swinging rod (52), a pendulum bob (53) and a test rubber sheet (54), wherein the swinging seat (51) and the pendulum bob (53) are respectively and fixedly installed at two ends of the swinging rod (52), the test rubber sheet (54) is installed at the bottom of the pendulum bob (53), and the swinging seat (51) is rotatably installed on a swinging shaft; the push rod (6) is fixedly arranged at one end of the swing seat (51) far away from the swing rod (52).

3. The road surface pendulum type friction test device according to claim 2, characterized in that: a connecting cylinder (56) for inserting the swing rod (52) is fixed on the swing seat (51), a plurality of elastic tightening pieces (57) are integrally formed at one end, away from the swing seat (51), of the connecting cylinder (56), and the elastic tightening pieces (57) are circumferentially arranged around the central shaft of the connecting cylinder (56); the connecting cylinder (56) is provided with opening clips (58) sleeved on the elastic tightening sheets (57), and the opening clips (58) are used for tightening the elastic tightening sheets (57).

4. The road surface pendulum type friction test device of claim 1, characterized in that: the base (1) comprises a central table (11) and a plurality of supporting legs (12) arranged on the side surface of the central table (11), and the supporting legs (12) are arranged at intervals; each supporting foot (12) is horizontally arranged, and each supporting foot (12) extends along the direction far away from the central table (11); one end of the supporting leg (12) far away from the central platform (11) is in threaded connection with a leveling bolt (13); the vertical frame (2) is fixed on the center platform (11).

5. The road surface pendulum type friction test device according to claim 4, characterized in that: and a bubble level meter (14) is arranged on the base (1).

6. The road surface pendulum type friction test device according to claim 2, characterized in that: dial (3) are installed in grudging post (2) through slide (25), slide (25) slide and set up in grudging post (2), just threaded connection has fixing bolt (26) that are used for locking slide (25) on slide (25).

7. The road surface pendulum type friction test device according to claim 6, characterized in that: the upright frame (2) comprises a main upright rod (21) and two auxiliary upright rods (22) fixedly arranged at the top of the main upright rod (21), the number of the sliding seats (25) is two, and the two sliding seats (25) are respectively arranged on the main upright rod (21) and the auxiliary upright rods (22) in a sliding manner; two slide (25) are fixed in respectively at both ends about calibrated scale (3) back.

8. The road surface pendulum type friction test device according to claim 7, characterized in that: a mounting bottom plate (23) is fixed at the top of the vertical frame (2), the two auxiliary vertical rods (22) are vertically fixed at two sides of the top of the mounting bottom plate (23), and the tops of the two auxiliary vertical rods (22) are connected through a mounting top plate (24); and a handle (27) is fixedly arranged at the top of the mounting top plate (24).

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