CN210108844U

CN210108844U - Clamping type marshall stability apparatus

Info

Publication number: CN210108844U
Application number: CN201920594947.8U
Authority: CN
Inventors: 刘宗雪; 宋智达; 刘宏云
Original assignee: Tianjin Kexin Construction Engineering Inspection Co Ltd
Current assignee: Tianjin Kexin Construction Engineering Inspection Co Ltd
Priority date: 2019-04-27
Filing date: 2019-04-27
Publication date: 2020-02-21
Anticipated expiration: 2029-04-27

Abstract

The utility model relates to a clamp type marshall stability apparatus, it includes plummer and test piece anchor clamps, and the plummer upper surface is placed test piece anchor clamps department and has been seted up the spacing groove, and the tight hole of clamp has all been seted up to spacing groove both sides wall, presss from both sides the downthehole clamping rod that is provided with of clamp, and the clamping rod slides in pressing from both sides tight hole, and the one end that the spacing groove was kept away from to the clamping rod is provided with the slip subassembly, and the slip subassembly drives the clamping rod and presss from both. The utility model discloses it stably places the effect on the plummer to have the test piece anchor clamps.

Description

Clamping type marshall stability apparatus

Technical Field

The utility model belongs to the technical field of the technique of material capability test on the road and specifically relates to a clamp type marshall stability apparatus is related to.

Background

The asphalt mixture is a general name of a mixture formed by stirring mineral aggregate and asphalt binder, and is widely applied to the field of road engineering. The Marshall stability tester is suitable for testing the thermal stability and the plastic deformation resistance of the asphalt mixture, and provides an accurate basis for the composition ratio design of the asphalt mixture.

The existing Chinese patent with reference to publication number CN106950106A discloses a Marshall stability tester with an automatic lifting upper pressure head, which comprises a host, a frame and a bearing platform, wherein the upper end of the host is fixedly connected with the frame, the frame comprises two upright posts and two cross beams, the cross beams are arranged between the two upright posts, one end of each upright post is vertically and fixedly connected with the upper surface of the host, and the other end of each upright post is fixedly connected with the cross beam; fixed surface is connected on plummer and the host computer, and the plummer sets up between two stands, and the plummer is kept away from the one end of host computer and has been placed test piece anchor clamps, places the test piece in test piece anchor clamps during the use, then places test piece anchor clamps and carries out marshall test on the plummer.

The above prior art solutions have the following drawbacks: because test piece anchor clamps and plummer butt and plummer can't prescribe a limit to the position of test piece anchor clamps, test piece anchor clamps drop from the plummer easily during the experiment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a clamp type marshall stability apparatus carries on spacingly to the test piece anchor clamps when carrying out the marshall experiment, has the effect that the test piece anchor clamps are stably placed on the plummer.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a clamp type marshall stability apparatus, includes plummer and test piece anchor clamps, the plummer upper surface is placed test piece anchor clamps department and has been seted up the spacing groove, and spacing groove both sides wall has all been seted up and has been pressed from both sides tight hole, presss from both sides the downthehole clamp rod that is provided with of clamp, and clamp rod slides in pressing from both sides tight hole, and the one end that the limit groove was kept away from to clamp rod is provided with the slip subassembly, and the slip subassembly drives clamp rod and presss from.

Through adopting above-mentioned technical scheme, when carrying out the marshall experiment, testing personnel place the spacing inslot of test piece anchor clamps in the plummer, utilize the slip subassembly to drive the clamping bar and slide in pressing from both sides tight hole, the clamp force that the clamping bar was applyed to the test piece anchor clamps makes the test piece anchor clamps fix at the spacing inslot, utilizes the effect of spacing groove and clamping bar, makes the plummer play limiting displacement to the test piece anchor clamps, has reached the stable effect of placing on the plummer of test piece anchor clamps.

The utility model discloses further set up to: the clamp-on marshall stability apparatus of claim 1, wherein: the sliding assembly comprises a sliding block, a bidirectional screw and a sliding cavity, the sliding cavity is arranged at the bearing platform and is far away from a limit groove, the sliding cavity is communicated with the limit groove through a clamping hole, the sliding block is arranged in the sliding cavity, the sliding block is abutted against the side wall of the sliding cavity, one end of a clamping rod, which is far away from the limit groove, is fixedly connected with the sliding block, the sliding block is in threaded connection with the bidirectional screw, the bidirectional screw is arranged in the vertical limit groove, the bidirectional screw penetrates through the bearing platform, and the bidirectional screw is rotatably connected with the bearing platform.

Through adopting above-mentioned technical scheme, when utilizing the clamping bar to exert the clamp force to test piece anchor clamps, adjust and rotate the handle and make two-way lead screw at the plummer internal rotation, because be threaded connection between slider and the two-way lead screw, the slider slides along two-way lead screw axis direction in the slip intracavity, the slider slides in the slip intracavity and drives the clamping bar and slide in pressing from both sides tight hole, make the clamping bar have tight effect to test piece anchor clamps, the realization only needs to adjust the handle just makes the clamping bar be close to or keep away from test piece anchor clamps, the convenience of instrument use has been improved.

The utility model discloses further set up to: and one end of the bidirectional screw rod is provided with a rotating handle which is fixedly connected with the bidirectional screw rod.

Through adopting above-mentioned technical scheme, when needing to rotate two-way lead screw, operating personnel adjusts and rotates the handle and make two-way lead screw rotate, drives the slider and slides at the slip intracavity, utilizes to rotate the handle and adjusts two-way lead screw, makes things convenient for operating personnel to rotate two-way lead screw, has improved the convenience that the instrument used.

The utility model discloses further set up to: the rotating handle at one end of the bidirectional screw rod is provided with a holding assembly, the rotating handle is located in the holding assembly, and the holding assembly is locked by the rotating handle.

Through adopting above-mentioned technical scheme, test piece anchor clamps exert force to the clamping rod when carrying out the experiment, drive the slider and slide on two-way lead screw and make two-way lead screw rotate, hold the two-way lead screw of subassembly locking through setting up, realize fixing the position of clamping rod, the clamping rod plays clamping effect when avoiding experimental not, has improved the stability when instrument uses.

The utility model discloses further set up to: the holding assembly comprises a bearing plate, a fixed rod, a movable rod and split rings, the bearing plate is fixedly connected with the side wall of the bearing platform in a vertical mode, the bearing plate is located below the rotating handle, the fixed rod is fixedly connected with the bearing plate in a vertical mode, the movable rod is hinged to the bearing plate, the split rings are arranged between the fixed rod and the movable rod and comprise a first split ring and a second split ring, one side, far away from the opening, of the first split ring is fixedly connected with the fixed rod, one side, far away from the opening, of the second split ring is fixedly connected with the movable rod, the rotating handle is arranged between the two split rings, the movable rod is fixedly connected with an adjusting bolt.

By adopting the technical scheme, the bearing plate plays a supporting role relative to the clasping device and provides a supporting platform for the clasping device, after the test piece clamp is clamped, the rotating handle is inserted into the split ring, the first split ring is abutted to the rotating handle, the nut on the adjusting bolt is rotated, the adjusting bolt drives the movable rod to move towards the fixed rod, the movable rod moves to enable the second split ring to be abutted to the rotating handle, and the rotating handle is locked under the extrusion of the first split ring and the second split ring; when the rotating handle is loosened, the nut of the adjusting bolt is rotated reversely, the adjusting bolt drives the movable rod to be far away from the clasping rod, the movable rod drives the second split ring to be far away from the rotating handle, the locking of the rotating shaft is released, the clasping assembly only needs to rotate the nut of the adjusting bolt to lock and unlock the rotating shaft, and the convenience in use of the instrument is improved.

The utility model discloses further set up to: the limiting groove is internally provided with an elastic assembly, the elastic assembly comprises an elastic groove, a spring and an elastic rod, the elastic groove is formed in the side wall of the limiting groove, the bottom wall of the elastic groove is fixedly connected with the spring, and one end, away from the bottom wall of the elastic groove, of the spring is fixedly connected with the elastic rod.

Through adopting above-mentioned technical scheme, when test piece anchor clamps put into the spacing inslot, test piece anchor clamps promote the elastic rod to the direction motion of being close to elastic groove diapire, elastic rod compression spring makes the spring produce deformation, the power that elastic rod diapire was kept away from to the deformation of spring self, the elastic rod will exert oneself and transmit to test piece anchor clamps, the elastic rod plays the effect of step up to test piece anchor clamps, elastic component has self-holding's nature, further the stable effect of placing on the plummer of test piece anchor clamps.

The utility model discloses further set up to: one end of the elastic rod, which is far away from the spring, is hemispherical.

By adopting the technical scheme, when the test piece clamp is placed, the test piece clamp extrudes one end of the elastic rod, which is far away from the spring, and the end, which is far away from the spring, of the test piece clamp is hemispherical, so that the elastic rod is pushed to extrude the spring when the test piece clamp is placed, and the convenience of the device in use is improved; on the other hand, the hemispherical setting makes the power that the spring provided assemble the position of sphere and test piece anchor clamps butt, has strengthened the clamping effect of spring to test piece anchor clamps.

The utility model discloses further set up to: the limiting groove bottom wall is provided with an antifriction groove, the antifriction groove and the limiting groove are arranged in the same direction, and an antifriction roller is rotatably connected in the antifriction groove.

Through adopting above-mentioned technical scheme, when the test piece anchor clamps were placed at the spacing inslot, need move the test piece anchor clamps along the spacing groove and make the test piece anchor clamps be located best test position, because the test piece anchor clamps quality is not convenient for slide at the spacing inslot greatly, set up antifriction groove and antifriction roller, reduce the friction of test piece anchor clamps and spacing groove diapire, be convenient for move the position of test piece anchor clamps at the spacing inslot, improve the convenience that the instrument used.

To sum up, the utility model discloses a beneficial technological effect does:

1. the limiting groove, the clamping rod and the sliding assembly are arranged on the bearing table, so that the test piece clamp is limited in the limiting groove, and the effect that the test piece clamp is stably placed on the bearing table is achieved;

2. the two-way screw rod is arranged, so that the two slide blocks are controlled to approach or separate by one two-way screw rod, the test piece clamp is clamped, and the convenience of using the device is improved;

3. through set up the locking and rotate the device of holding tightly of handle in rotation handle department, hold the device locking and rotate the handle during experiment, avoid pressing from both sides tight pole and play not clamping effect, stability when having improved the instrument and using.

Drawings

FIG. 1 is a schematic structural view of the utility model in use;

FIG. 2 is a schematic structural view of the carrier stage of the present invention;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is an exploded view of the elastic assembly of the present invention;

fig. 5 is a cross-sectional view of the two-way screw bearing table of the present invention.

In the figure, 1, a host; 2. a frame; 21. a column; 22. a cross beam; 3. a bearing table; 31. a limiting groove; 32. a clamping lever; 33. a clamping hole; 4. a sliding assembly; 41. a bidirectional lead screw; 42. a slider; 43. a sliding cavity; 5. a clasping component; 51. a carrier plate; 52. fixing the rod; 53. a movable rod; 54. a split ring; 541. a first split ring; 542. a second split ring; 55. adjusting the bolt; 56. a nut; 6. an elastic component; 61. an elastic groove; 62. a spring; 63. an elastic rod; 7. a wear-reducing groove; 71. reducing the grinding roller; 8. a test piece clamp; 9. the handle is rotated.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the clamp type marshall stability measuring instrument disclosed by the utility model comprises a main machine 1, wherein a frame 2 is fixedly connected to the upper end of the main machine 1, the frame 2 comprises cylindrical columns 21 and two cross beams 22, one end of each column 21 is vertically and fixedly connected with the upper surface of the main machine 1, the other end of each column 21 is fixedly connected with the cross beam 22, and the cross beam 22 is arranged between the two columns 21; fixed surface is connected with plummer 3 on host computer 1, and the one end that host computer 1 was kept away from to plummer 3 is provided with stop device, has placed test piece anchor clamps 8 in the stop device, and stop device has the stabilizing effect to test piece anchor clamps 8, has reached the effect that test piece anchor clamps stably placed on the plummer.

Referring to fig. 2 and 5, the limiting device includes a limiting groove 31, the rectangular limiting groove 31 is formed in one end of the plummer 3 away from the host 1, two clamping holes 33 are formed in the side wall of the limiting groove 31, the clamping holes 33 are perpendicular to the side wall of the limiting groove 31, the two clamping holes 33 are symmetrically formed in the two side walls of the limiting groove 31, a clamping rod 32 is inserted into the clamping hole 33, and the clamping rod 32 slides in the clamping hole 33; a sliding cavity 43 is arranged at the position, far away from the limiting groove 31, of the bearing table 3, the sliding cavity 43 is communicated with the limiting groove 31 through a clamping hole 33, a sliding block 42 is arranged in the sliding cavity 43, the sliding block 42 is fixedly connected with one end, far away from the limiting groove 31, of the clamping rod 32, the sliding block 42 is abutted against the side wall of the sliding cavity 43, the sliding block 42 is in threaded connection with a bidirectional lead screw 41, the bidirectional lead screw 41 penetrates through the bearing table 3 and is in rotational connection with the bearing table 3, and two sections of threads with different rotation directions on the bidirectional lead screw are respectively arranged on; one end of the bidirectional screw rod 41 close to an operator is provided with a rotating handle 9, the rotating handle 9 is fixedly connected with the bidirectional screw rod 41, the bidirectional screw rod 41 is driven to rotate when the rotating handle 9 is adjusted, two sections of different turning threads of the bidirectional screw rod 41 are utilized, the sliding blocks 42 in the sliding cavities 43 on two sides of the limiting groove 31 move oppositely, the clamping rod 32 is driven to abut against the test piece clamp 8, clamping force is applied to the test piece clamp 8, the rotating handle 9 is adjusted, the clamping effect is achieved on the test piece clamp 8, and convenience of the instrument in use is improved.

Referring to fig. 3, a clasping assembly 5 is arranged at the joint of the rotating handle 9 and the bidirectional screw 41, the clasping assembly 5 comprises a bearing plate 51, the square bearing plate 51 is vertically and fixedly connected with the side wall of the bearing table 3, the bearing plate 51 is arranged below the rotating handle 9, the upper surface of the bearing plate 51 is vertically and fixedly connected with a cylindrical fixed rod 52, the upper surface of the bearing plate 51 is hinged with a cylindrical movable rod 53, the fixed rod 52 and the movable rod 53 are arranged on two sides of the rotating handle 9, a split ring 54 is arranged between the fixed rod 52 and the movable rod 53, the split ring 54 comprises a first split ring 541 and a second split ring 542, one side, away from the opening, of the first split ring 541 is fixedly connected with the clasping rod, one side, away from the opening, of the second split ring 542 is fixedly connected with the movable rod 53, the rotating handle 9 is arranged between the two split rings 54, the movable rod 53 is fixedly connected with an adjusting bolt 55, and the adjusting bolt 55. Set up in rotation handle 9 department and hug closely subassembly 5, utilize to hug closely subassembly 5 locking and rotate handle 9, reach the effect of fixed clamp rod 32, press from both sides clamp rod 32 and test fixture 8 when avoiding experimental and break away from and play not clamping effect, stability when having improved the instrument and using.

Referring to fig. 4, two side walls of the limiting groove 31 are symmetrically provided with elastic components 6, each elastic component 6 includes an elastic groove 61, the circular elastic groove 61 is formed in the side wall of the limiting groove 31, the elastic groove 61 is perpendicular to the limiting groove 31, the bottom wall of the elastic groove 61 is fixedly connected with a spiral spring 62, one end of the spring 62 is fixedly connected with the bottom wall of the elastic groove 61, the other end of the spring 62 is fixedly connected with a cylindrical elastic rod 63, and one end of the elastic rod 63, which is far away from the spring 62, is arranged in a hemispherical shape. The one end that the spring was kept away from to the elastic rod sets up to the hemisphere, and the extrusion spring when being convenient for place test piece anchor clamps utilizes the thrust of spring 62 to elastic rod 63 to realize the preliminary clamp tight to test piece anchor clamps 8, convenience when improving the device and using

Referring to fig. 2, a rectangular antifriction groove 7 is formed in the bottom wall of the limiting groove 31, an antifriction roller 71 is rotatably connected in the antifriction groove 7, and the antifriction groove 7 and the limiting groove 31 are arranged in the same direction. When test piece anchor clamps 8 are placed in spacing groove 31, the one end of extrusion elastic rod 63 hemisphere type during test piece anchor clamps 8, utilize the easy gliding nature of hemisphere, elastic rod 63 is to the direction motion that is close to elastic groove 61 diapire, elastic rod 63 compression spring 62 makes spring 62 produce deformation, utilize the nature of spring 62 self to make elastic rod 63 play the effect of step up to test piece anchor clamps 8, the antifriction roller 71 of spacing groove 31 diapire reduces the friction of test piece anchor clamps 8 with spacing groove 31 diapire, be convenient for adjust the position of spacing anchor clamps in spacing groove 31, elastic component 6 has self-holding's nature to test piece anchor clamps 8, convenience when the improvement device uses.

The implementation principle of the embodiment is as follows: when the clamping type Marshall stability tester is used, the test piece clamp 8 is placed in the limiting groove 31 on the bearing table 3, the test piece clamp 8 extrudes the hemispherical end of the elastic rod 63, the elastic rod 63 is driven to move towards the bottom wall of the elastic groove 61, the spring 62 is extruded to be compressed, the compressed spring 62 has a force on the elastic rod 63, the force is far away from the bottom wall of the elastic groove 61, and the preliminary clamping on the test piece clamp 8 is realized by the thrust of the spring 62 on the elastic rod 63; when the position of the test piece clamp 8 needs to be adjusted in the limiting groove 31, the test piece clamp 8 is pushed, and the test piece clamp 8 drives the antifriction roller 71 to slide in the antifriction groove 7; after the position of the test piece clamp 8 is adjusted, the rotating handle 9 is adjusted to drive the bidirectional screw rod 41 to rotate, the bidirectional screw rod 41 drives the sliding block 42 to slide in the sliding cavity 43, threads in different rotation directions on the bidirectional screw rod 41 enable the sliding blocks 42 on two sides of the limiting groove 31 to move close to each other, the clamping rod 32 is driven to move towards the limiting groove 31, the clamping rod 32 is enabled to be respectively abutted against the test piece clamp 8 from two sides, and the test piece clamp 8 is stably clamped; when the clamping rod 32 clamps the test piece clamp 8, the nut 56 on the adjusting bolt 55 is rotated to drive the movable rod 53 to move towards the fixed rod 52, so that the first split ring 54154 and the second split ring 54254 are driven to approach each other to lock the rotating handle 9. Through the steps, the test piece clamp 8 on the bearing table 3 is limited and clamped, and the effect that the test piece clamp is stably placed on the bearing table is achieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a clamp type marshall stability apparatus, includes plummer (3) and test piece anchor clamps (8), its characterized in that: limiting groove (31) have been seted up in plummer (3) upper surface place test piece anchor clamps (8) department, and tight hole (33) have all been seted up to limiting groove (31) both sides wall, are provided with in pressing from both sides tight hole (33) and press from both sides tight pole (32), and press from both sides tight pole (32) and slide in pressing from both sides tight hole (33), and the one end that spacing groove (31) were kept away from in tight pole (32) is provided with slip subassembly (4), and slip subassembly (4) drive and press from both sides tight pole (32) and press from both sides tight test.

2. The clamp-on marshall stability apparatus of claim 1, wherein: slide subassembly (4) include slider (42), two-way lead screw (41) and slip chamber (43), slip chamber (43) set up and keep away from spacing groove (31) department in plummer (3), slip chamber (43) are through pressing from both sides tight hole (33) and spacing groove (31) intercommunication, slider (42) set up in slip chamber (43), slider (42) and slip chamber (43) lateral wall butt, the one end and slider (42) fixed connection of spacing groove (31) are kept away from in clamping lever (32), slider (42) and two-way lead screw (41) threaded connection, two-way lead screw (41) perpendicular spacing groove (31) set up, two-way lead screw (41) run through plummer (3), two-way lead screw (41) rotate with plummer (3) and are connected.

3. The clamp-on marshall stability apparatus of claim 2, wherein: one end of the bidirectional screw rod (41) is provided with a rotating handle (9), and the rotating handle (9) is fixedly connected with the bidirectional screw rod (41).

4. The clamp-on marshall stability apparatus of claim 3, wherein: the rotary handle (9) at one end of the bidirectional screw rod (41) is provided with a holding component (5), the rotary handle (9) is located in the holding component (5), and the holding component (5) is locked by the rotary handle (9).

5. The clamp-on marshall stability apparatus of claim 4, wherein: the clasping assembly (5) comprises a bearing plate (51), a fixed rod (52), a movable rod (53) and split rings (54), the bearing plate (51) is vertically and fixedly connected with the side wall of the bearing table (3), the bearing plate (51) is positioned below the rotating handle (9), the fixed rod (52) is vertically and fixedly connected with the bearing plate (51), the movable rod (53) is hinged with the bearing plate (51), the split rings (54) are arranged between the fixed rod (52) and the movable rod (53), the split rings (54) comprise first split rings (541) and second split rings (542) (54), one sides of the first split rings (541) far away from the opening are fixedly connected with the fixed rod (52), one sides of the second split rings (542) far away from the opening are fixedly connected with the movable rod (53), the rotating handle (9) is arranged between the two split rings (54), the movable rod (53) is fixedly connected with an adjusting bolt (55), the adjusting bolt (55) penetrates through the fixing rod (52) and is connected with a nut (56) through threads.

6. The clamp-on marshall stability apparatus of claim 1, wherein: be provided with elastic component (6) in spacing groove (31), elastic component (6) include elastic groove (61), spring (62) and elastic rod (63), and elastic groove (61) are seted up at spacing groove (31) lateral wall, elastic groove (61) diapire and spring (62) fixed connection, and the one end and elastic rod (63) fixed connection of elastic groove (61) diapire are kept away from in spring (62).

7. The clamp-on marshall stability apparatus of claim 6, wherein: one end of the elastic rod (63) far away from the spring (62) is arranged to be hemispherical.

8. The clamp-on marshall stability apparatus of claim 1, wherein: the bottom wall of the limiting groove (31) is provided with an abrasion reducing groove (7), the abrasion reducing groove (7) and the limiting groove (31) are arranged in the same direction, and an abrasion reducing roller (71) is rotationally connected in the abrasion reducing groove (7).