CN221056215U - Marshall tester - Google Patents

Abstract

The utility model discloses a Marshall tester, which comprises a base, wherein two groups of support columns are welded at the upper part of the base, the upper ends of the two groups of support columns are welded with a mounting frame, the lower part of the mounting frame is provided with a first electric telescopic rod in a penetrating way, one end part of the first electric telescopic rod is fixedly provided with a collision plate, the inner bottom surface of the mounting frame is welded with two groups of vertical rods, the side walls of the two groups of vertical rods are sheathed with a lifting plate and a sliding plate in a sliding way, the upper part of the lifting plate is provided with a fixed through groove, the inside of the fixed through groove is provided with a bidirectional screw rod and a pressing seat, the upper part of the pressing seat is provided with an upper pressing seat, the two groups of L-shaped connecting rods respectively penetrate through the pressing seat and the upper pressing seat, and one end parts of the two groups of L-shaped connecting rods are respectively welded with two groups of sleeves. The beneficial effects are that: according to the utility model, the bidirectional screw is adopted, and the disassembly and assembly work of the pressing seat can be completed by rotating one group of screw structures through the arranged bidirectional screw, so that the use efficiency of the Marshall tester is improved.

Description

Marshall tester

Technical Field

The utility model relates to the technical field of asphalt stability and flow measurement, in particular to a Marshall tester.

Background

The Marshall test is a test for determining the optimal oil-stone ratio of the asphalt mixture, the test process is to perform standard compaction on a test piece under the conditions of specified temperature, humidity and the like, measure indexes such as stability, flow value and the like of the asphalt mixture, respectively draw a relation curve of the oil-stone ratio and the stability, the flow value, density, void fraction and saturation after a series of calculation, and finally determine the optimal oil-stone ratio of the asphalt mixture.

The prior art discloses the publication number: CN213302228U is an asphalt mixture marshall stability tester, which comprises a case, a pressure sensor, a supporting rod, the roof, the elevating platform, the plectane, the L-shaped connecting rod, push down the seat, go up the seat, the bobbin, the L-shaped horizontal pole, the screw rod, the supporting seat, the sleeve pipe, arc magnetic shoe and solenoid, when using, with test piece and last seat and push down and take out after soaking in the water for half an hour in the degree celsius together, put the test piece into the cavity between last seat and the seat down, then put it on the elevating platform again, afterwards, start controlling means control pressure sensor upwards presses the seat, and adjust the position of pressing down the seat, make the pressure bead on the pressure sensor upwards rise with last seat up end butt, simultaneously, the elevating platform will go up the seat with push down the seat and go up towards the pressure sensor direction, controlling means records the maximum pressure of this test piece and its corresponding flow value, and print out the test result, so, under the use of auxiliary supporting mechanism, can guarantee to push down the stability of seat when using, push down the cavity between seat and push down, then can guarantee the stability when using, the seat is further on the test piece, can be connected with the seat, and the improvement of the quality of the test piece is further can be improved, and the quality is better to the detection of the test piece is realized, and the quality is better to the improvement of the quality of the test piece is connected with the fact that can be connected with the detection on the seat by the upper pressure seat of the seat.

According to the utility model, the installation of the pressing seat requires an operator to rotate the four sets of screw structures in sequence so that the four sets of screw structures abut against the pressing seat, the operation steps are more, and meanwhile, the use efficiency of the pressing seat can be influenced due to consumed time.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a Marshall tester which has the advantage that the disassembly and assembly work of a pressing seat can be completed by rotating a group of screw structures, thereby solving the problems in the background art.

(II) technical scheme

In order to realize the advantages that the disassembly and assembly work of the pressing seat can be completed by rotating a group of screw structures, the utility model adopts the following specific technical scheme:

The Marshall tester comprises a base and an L-shaped connecting rod, wherein the L-shaped connecting rod is provided with two groups, two groups of support columns are welded on the upper part of the base, an installation frame is welded on the upper end of each support column, a first electric telescopic rod is installed at the lower part of the installation frame in a penetrating mode, a collision plate is fixedly installed at one end of each first electric telescopic rod, two groups of vertical rods are welded on the inner bottom surface of the installation frame, the two groups of vertical rods are connected with a lifting plate and a sliding plate in a sliding mode through the side wall of each vertical rod in a sleeving mode, fixed through grooves are formed in the upper part of each lifting plate, two groups of L-shaped connecting rods penetrate through the lower pressure seat and the upper pressure seat respectively, two groups of L-shaped connecting rods are welded on one end portion of each L-shaped connecting rod, a plurality of groups of through holes are formed in the side wall of each sleeve, arc-shaped magnet blocks are formed in the inner portion of each through holes, two groups of the through holes are formed in the side wall of each first electric telescopic rod, two groups of the two groups of magnet blocks are positioned on the same horizontal line, a lifting plate is connected with two groups of magnet blocks in a sliding mode, a lifting plate and a sliding plate are sleeved with two ends of the two groups of the electric rods are connected with two groups of the electric telescopic rods in a sliding plate in a sliding mode, two ends of the screw rod are connected with two groups of the screw rod in a threaded mode, two ends of the two groups of the screw rod are connected with two groups of the screw rod in a threaded connection respectively, two ends of the screw rod are connected with two ends of the screw rod in a threaded connection mode, and the screw rod is welded with two ends of the screw rod respectively, and the screw rod is welded with the screw rod respectively, the screw rod is connected with the end rod in a threaded connection with the screw rod through hole through the screw rod and the screw rod through hole respectively, the other side of the pressing seat is provided with a yielding groove, and one end of the bidirectional screw rod penetrates through the yielding groove.

Further, the bidirectional screw is meshed with the two sets of threaded pipes.

Further, the vertical section size and shape of the four groups of the inserted bars are the same as those of the four groups of the jacks.

Further, the upper portion of slide has been seted up multiunit winding displacement hole, and multiunit the inner wall in winding displacement hole has all been seted up two sets of through holes, and multiunit the inside in through hole all slides and has run through T shape pole, multiunit the lateral wall of T shape pole has all cup jointed the extension spring, and two sets of on the same side the one end tip welding of T shape pole has the clamp plate.

Further, the lower pressing seat and the upper pressing seat are both positioned on the same vertical plane.

Further, control panel is installed to one side of base, and control panel passes through the electric wire and first electric telescopic handle, multiunit wire, second electric telescopic handle and pressure sensor electric connection.

Further, four groups of supporting seats are welded at the lower part of the base.

(III) beneficial effects

Compared with the prior art, the utility model provides a Marshall tester, which has the following beneficial effects:

(1) When the pressing seat is required to be installed, an operator firstly moves the pressing seat to the inside of the fixed through groove by hand, when the bidirectional screw penetrates through the abdication groove, the bidirectional screw is mutually meshed with the two groups of threaded pipes, the operator can rotate the bidirectional screw clockwise by hand, the bidirectional screw can push the two groups of threaded pipes to move in opposite directions, when one end of the four groups of inserting rods is respectively inserted into the inside of the four groups of inserting holes, the installation work of the pressing seat is finished, the operator can rotate the bidirectional screw anticlockwise by hand, the two groups of threaded pipes can be pushed to move away from each other, when one end of the four groups of inserting rods is respectively moved out of the inside of the four groups of inserting holes, the disassembly work of the pressing seat is finished, and then the test piece, the upper pressing seat and the pressing seat are immersed in 60 ℃ water for half an hour and then taken out, the test piece is placed into the cavity between the upper pressing seat and the lower pressing seat, the control panel is started, the second electric telescopic rod is extended, the second electric telescopic rod pushes the sliding plate, the pressure sensor presses the upper pressing seat, the position of the lower pressing seat is adjusted, the pressing bead on the pressure sensor is abutted to the upper end face of the upper pressing seat, meanwhile, the first electric telescopic rod extends to enable the upper pressing seat and the lower pressing seat to ascend towards the direction of the pressure sensor, the control panel records the maximum pressure of the test piece and the corresponding current value of the test piece, and the test result is printed out, so that a group of tests are finished, the two groups of guide rods guarantee the stability of movement of the two groups of threaded pipes, the set of screw rod structure is rotated through the set bidirectional screw rods, the disassembly work of the lower pressing seat can be completed, and the use efficiency of the Marshall tester is improved.

(2) Before the Marshall tester is actually used, an operator firstly moves the plurality of groups of T-shaped rods by hand, in the process, the plurality of groups of pressing plates can extrude the plurality of groups of telescopic springs, when the plurality of groups of pressing plates move to the expected positions, the plurality of groups of wires and the plurality of groups of wires can respectively penetrate through the plurality of groups of wire arrangement holes, after the plurality of groups of wires and the plurality of groups of wires are respectively connected, the operator loosens the plurality of groups of T-shaped rods, the plurality of groups of telescopic springs are subjected to the action of self elasticity, the plurality of groups of pressing plates are pushed to reset, the inner walls of the plurality of groups of pressing plates and the plurality of groups of wire arrangement holes can extrude the plurality of groups of wires and the plurality of groups of wires, so that the plurality of groups of wires and the plurality of groups of wires are stably fixed, and the plurality of groups of wires can be orderly clamped and fixed through the arranged sliding plates, and the use practicability of the Marshall tester is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in 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 utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a Marshall tester according to the present utility model;

FIG. 2 is a top view of a bi-directional screw according to the present utility model;

FIG. 3 is a front view of a hold-down seat according to the present utility model;

FIG. 4 is a perspective view of a lifter plate according to the present utility model;

FIG. 5 is an enlarged view of FIG. 1A in accordance with the teachings of the present utility model;

FIG. 6 is an enlarged view of B of FIG. 1 in accordance with the teachings of the present utility model;

fig. 7 is a side view of a proposed interference plate of the present utility model.

In the figure:

1. A base; 2. a support column; 3. a mounting frame; 4. a vertical rod; 5. a lifting plate; 6. a slide plate; 7. a first electric telescopic rod; 8. a contact plate; 9. an L-shaped connecting rod; 10. a sleeve; 11. a through hole; 12. arc-shaped magnet blocks; 13. a solenoid; 14. a second electric telescopic rod; 15. a pressure sensor; 16. pressing down a seat; 17. an upper pressing seat; 18. a relief groove; 19. a bidirectional screw; 20. fixing the through groove; 21. a bearing; 22. a threaded tube; 23. a guide rod; 24. a rod; 25. a jack; 26. a wire arrangement hole; 27. a through hole; 28. a T-bar; 29. a pressing plate; 30. and a telescopic spring.

Detailed Description

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

According to an embodiment of the present utility model, there is provided a marshall tester.

The utility model will be further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1-7, a marshall tester according to the embodiment of the utility model comprises a base 1 and an L-shaped connecting rod 9, wherein the L-shaped connecting rod 9 is provided with two groups, two groups of support columns 2 are welded at the upper part of the base 1, the upper ends of the two groups of support columns 2 are welded with a mounting frame 3, the lower part of the mounting frame 3 is provided with a first electric telescopic rod 7 in a penetrating way, one end part of the first electric telescopic rod 7 is fixedly provided with a collision plate 8, the inner bottom surface of the mounting frame 3 is welded with two groups of vertical rods 4, the side walls of the two groups of vertical rods 4 are sheathed with a lifting plate 5 and a sliding plate 6 in a sliding way, the upper part of the lifting plate 5 is provided with a fixed through groove 20, the inside of the fixed through groove 20 is provided with a bidirectional screw 19 and a pressing seat 16, the upper pressing seat 17 is arranged above the pressing seat 16, two groups of L-shaped connecting rods 9 respectively penetrate through the lower pressing seat 16 and the upper pressing seat 17, two groups of sleeves 10 are welded at one end of each of the two groups of L-shaped connecting rods 9, a plurality of groups of through holes 11 are formed in the side walls of the two groups of sleeves 10, arc-shaped magnet blocks 12 are penetrated in the plurality of groups of through holes 11, a solenoid 13 is arranged between the two groups of arc-shaped magnet blocks 12 on the same horizontal line, the side walls of the plurality of groups of solenoid 13 are sheathed with wires, the upper part of the installation frame 3 is penetrated with a second electric telescopic rod 14, one end of the second electric telescopic rod 14 is fixedly connected with the upper part of the sliding plate 6, a pressure sensor 15 is fixedly arranged at the lower part of the sliding plate 6, bearings 21 are penetrated at the front end and the rear end of the lifting plate 5, two ends of a bidirectional screw 19 respectively penetrate through the two groups of bearings 21, two groups of threaded pipes 22 are sheathed on the side walls of the bidirectional screw 19, two groups of inserted rods 24 are welded at the opposite ends of the two groups of threaded pipes 22, the front and back terminal surfaces of pushing down seat 16 all are provided with two sets of jacks 25, and two sets of guide arms 23 are run through to the one end of two sets of screwed pipe 22, and the both ends of two sets of guide arms 23 respectively with the front and back terminal surface welding of fixed logical groove 20, the opposite side of pushing down seat 16 is provided with the groove 18 of stepping down, and the groove 18 of stepping down is run through to the one end of two-way screw 19, through the two-way screw 19 that sets up, rotatory a set of screw structure just can accomplish the dismouting work of pushing down seat 16, has improved the availability factor of marshall tester.

In one embodiment, the bi-directional screw 19 intermeshes with both sets of threaded tubes 22 to facilitate adjusting the position of use of both sets of threaded tubes 22.

In one embodiment, the vertical cross-sectional size and shape of the four sets of inserting rods 24 are the same as the vertical cross-sectional size and shape of the four sets of inserting holes 25, so that the four sets of inserting rods 24 can be stably inserted into the four sets of inserting holes 25 respectively.

In one embodiment, the upper portion of slide 6 has seted up multiunit winding displacement hole 26, and multiunit winding displacement hole 26's inner wall has all been seted up two sets of through-holes 27, and the inside of multiunit through-hole 27 all slides and has run through T shape pole 28, telescopic spring 30 has all been cup jointed to multiunit T shape pole 28's lateral wall, the one end tip welding of two sets of T shape poles 28 of homonymy has clamp plate 29, through the slide 6 that sets up, can carry out orderly centre gripping fixed to multiunit wire and multiunit electric wire, the practicality of using of marshall tester has been improved.

In one embodiment, the pressing seat 16 and the upper pressing seat 17 are located on the same vertical plane, so that the situation that the pressing seat 16 and the upper pressing seat 17 cannot clamp a test piece due to dislocation of the pressing seat 16 and the upper pressing seat 17 is avoided.

In one embodiment, a control panel is mounted on one side of the base 1, and the control panel is electrically connected to the first electric telescopic rod 7, the plurality of groups of wires, the second electric telescopic rod 14 and the pressure sensor 15 through wires, and the control panel can be implemented through simple programming by those skilled in the art, and is only used and not modified, so that the control mode and circuit connection will not be described in detail.

In one embodiment, four groups of supporting seats are welded on the lower portion of the base 1, and the four groups of supporting seats play a role in supporting the fixed base 1.

Working principle:

When the pressing seat 16 is required to be installed, an operator firstly moves the pressing seat 16 to the inside of the fixed through groove 20 by hand, when the bidirectional screw 19 penetrates through the abdication groove 18, the bidirectional screw 19 is meshed with the two groups of threaded pipes 22, the operator can rotate the bidirectional screw 19 clockwise by hand, the bidirectional screw 19 can push the two groups of threaded pipes 22 to move in opposite directions, when one ends of the four groups of inserting rods 24 are respectively inserted into the inside of the four groups of inserting holes 25, the continuous rotation of the bidirectional screw 19 is stopped, at the moment, the installation work of the pressing seat 16 is completed, the operator can rotate the two groups of threaded pipes 22 anticlockwise by hand, when one ends of the four groups of inserting rods 24 are respectively moved out of the inside of the four groups of inserting holes 25, the disassembly work of the pressing seat 16 is completed, then the test piece, the upper pressing seat 17 and the pressing seat 16 are immersed in 60 ℃ water for half an hour, and then taken out, the test piece is placed in a cavity between the upper pressing seat 17 and the lower pressing seat 16, then a control panel is started, the second electric telescopic rod 14 is extended, the second electric telescopic rod 14 pushes the sliding plate 6 to press the pressure sensor 15 to the upper pressing seat 17, the position of the lower pressing seat 16 is adjusted, the pressing beads on the pressure sensor 15 are abutted with the upper end face of the upper pressing seat 17, meanwhile, the upper pressing seat 17 and the lower pressing seat 16 are lifted up towards the direction of the pressure sensor 15 by the extension of the first electric telescopic rod 7, the control panel records the maximum pressure of the test piece and the corresponding current value of the test piece, and the test result is printed out, so that one group of tests are finished, the two groups of guide rods 23 guarantee the stability of the movement of the two groups of threaded pipes 22, the disassembly and assembly work of the lower pressing seat 16 can be completed by rotating one group of screw rods 19 through the arranged bidirectional screw rods 19, the use efficiency of the Marshall tester is improved, and before the Marshall tester is actually used, the operation workman moves multiunit T shape pole 28 by hand earlier, this in-process, multiunit clamp plate 29 can extrude multiunit telescopic spring 30, when multiunit clamp plate 29 moved to the anticipated position, can run through multiunit wire and multiunit electric wire respectively multiunit winding displacement hole 26, after multiunit wire and multiunit electric wire are connected respectively, the operation workman unclamps multiunit T shape pole 28, multiunit telescopic spring 30 receives self elasticity effect, through promoting multiunit clamp plate 29, make it reset movement, multiunit clamp plate 29 and multiunit winding displacement hole 26's inner wall can extrude multiunit wire and multiunit electric wire, make multiunit wire and multiunit electric wire stable fixed, through slide 6 that sets up, can carry out orderly centre gripping to multiunit wire and multiunit electric wire fixed, the practicality of Marshall test appearance has been improved.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (7)

1. The Marshall tester is characterized by comprising a base (1) and an L-shaped connecting rod (9), wherein the L-shaped connecting rod (9) is provided with two groups, two groups of support columns (2) are welded on the upper part of the base (1), an installation frame (3) is welded on the upper end of each support column (2), a first electric telescopic rod (7) is installed on the lower part of each installation frame (3) in a penetrating way, an abutting plate (8) is fixedly installed at one end part of each first electric telescopic rod (7), two groups of vertical rods (4) are welded on the inner bottom surface of each installation frame (3), the side walls of the vertical rods (4) are sleeved with a lifting plate (5) and a sliding plate (6) in a sliding way, a fixed through groove (20) is formed in the upper part of each lifting plate (5), an inner part of each fixed through groove (20) is provided with a bidirectional screw rod (19) and a pressing seat (16), an upper pressing seat (17) is installed on the upper part of each pressing seat (16), two groups of L-shaped connecting rods (9) respectively penetrate through the pressing seats (16) and the upper pressing seats (17), two groups of magnetic sleeves (11) are welded at the two groups of the inner ends of the two groups of connecting rods (10), the utility model provides a two sets of arc magnet pieces (12) that are located same horizon are gone up install solenoid (13), multiunit solenoid (13)'s lateral wall has all cup jointed the wire, install second electric telescopic handle (14) are run through on the upper portion of installing frame (3), and the one end tip of second electric telescopic handle (14) and the upper portion fixed connection of slide (6), the lower part fixed mounting of slide (6) has pressure sensor (15), the front and back terminal surface of lifter plate (5) has all run through bearing (21), two sets of both ends of bi-directional screw (19) run through respectively bearing (21), two sets of screwed pipe (22) have been cup jointed to the lateral wall of bi-directional screw (19), two sets of screwed pipe (22) have all welded two sets of inserted bars (24) in opposite ends, the front and back terminal surface of pushing down seat (16) all are provided with two sets of jack (25), and two sets of screwed pipe (22) have run through two sets of (23), and two sets of both ends of letting down guide arm (23) respectively with the fixed slot (20) behind the fixed slot (18), the bi-directional screw (18) have the welding groove (18).

2. A marshall tester according to claim 1, characterized in that said bi-directional screw (19) is intermeshed with two sets of said threaded pipes (22).

3. A marshall tester according to claim 1, characterized in that the vertical cross-sectional dimensions and shapes of the four sets of said pins (24) are the same as the vertical cross-sectional dimensions and shapes of the four sets of said receptacles (25).

4. The marshall tester according to claim 1, wherein a plurality of groups of wire arranging holes (26) are formed in the upper portion of the sliding plate (6), two groups of penetrating holes (27) are formed in the inner walls of the wire arranging holes (26), T-shaped rods (28) are slidably penetrated in the penetrating holes (27), extension springs (30) are sleeved on the side walls of the T-shaped rods (28), and a pressing plate (29) is welded to one end of each of the T-shaped rods (28) on the same side.

5. A marshall tester according to claim 1, characterized in that the lower press seat (16) and the upper press seat (17) are both located on the same vertical plane.

6. The Marshall tester according to claim 1, characterized in that a control panel is mounted on one side of the base (1), and the control panel is electrically connected with the first electric telescopic rod (7), the plurality of groups of wires, the second electric telescopic rod (14) and the pressure sensor (15) through electric wires.

7. A marshall tester according to claim 1, characterized in that the lower part of the base (1) is welded with four sets of support seats.