A railway crushed stone ballast compressive strength testing device

Abstract

The present invention relates to the technical field of railway gravel ballast detection, and specifically to a railway gravel ballast compressive strength test device, comprising a spacer, and also comprising: a gravel moving structure connected to the spacer; a double-sided grinding structure connected to the spacer, the double-sided grinding structure is used to perform double-sided grinding operations on the gravel; a measuring extrusion structure connected to the spacer; and a waste collection structure connected to the spacer. The present invention performs double-sided grinding and area measurement operations on the gravel through the cooperation of the gravel moving structure, the double-sided grinding structure, and the measuring extrusion structure. During the process, the gravel maintains the stability of placement due to the ground plane, and then pressure is applied to the other ground plane of the gravel, so as to obtain the pressure value of the gravel and perform compressive strength detection operations at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of railway crushed stone ballast detection, in particular to a railway crushed stone ballast compressive strength testing device. Background Art

[0002] Ballast is coarse gravel or crushed stone used to pave the road or railway subgrade. The stone is made of special granite and is used to distribute the weight of trains and rails on the subgrade, which can reduce the vibration and noise caused by the passing of trains. Ballasted track is one of the most important track structure forms in my country's railways. The gravel roadbed in the ballasted track is composed of graded crushed stone.

[0003] The crushing and corner wear of railway gravel ballast is one of the main reasons for the aging of ballasted trackbed. Only by clarifying the crushing mechanism of gravel ballast can the maintenance and repair of trackbed be optimized theoretically to achieve the goal of saving economic costs and improving work efficiency. The determination of the compressive strength of new and existing ballast is the premise for clarifying the ballast crushing mechanism and numerical simulation of ballasted trackbed. The general railway gravel ballast compressive strength test equipment directly applies pressure to a single gravel, but in fact, due to the irregularity of the gravel structure, on the one hand, the gravel is difficult to fix, and on the other hand, the area of ​​the crushed gravel is difficult to measure. As a result, during the crushing process of the gravel, the equipment can only obtain the pressure applied to the gravel, and the equipment cannot obtain the pressure on the gravel, so the collected data is not comprehensive. Summary of the invention

[0004] The object of the present invention is to provide a railway crushed stone ballast compressive strength testing device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A railway crushed stone ballast compressive strength testing device comprises a spacer frame and also comprises:

[0007] A crushed stone moving structure connected to the spacer frame;

[0008] A double-sided grinding structure connected to the spacer frame, the double-sided grinding structure is used for double-sided grinding of crushed stone;

[0009] A measuring extrusion structure connected to the spacer frame, the measuring extrusion structure includes a first cantilever frame fixedly connected to the spacer frame, the first cantilever frame is fixedly connected to a first motor, the output shaft of the first motor is fixedly connected to a linkage frame, the linkage frame is fixedly connected to a first active telescopic rod, the movable end of the first active telescopic rod is fixedly connected to a pressure head, the pressure head is fixedly connected to a connecting frame, the connecting frame is fixedly connected to a linear displacement sensor connected to the linkage frame, the linkage frame is fixedly connected to a second active telescopic rod, the movable end of the second active telescopic rod is fixedly connected to a first disk body, the first disk body is fixedly connected to a first positioning platform, the first positioning platform is fixedly connected to multiple groups of first pressure sensors, the spacer frame is fixedly connected to a second disk body, the second disk body is fixedly connected to a second positioning platform, and the second positioning platform is fixedly connected to multiple groups of second pressure sensors;

[0010] A waste collection structure connected to the spacer frame.

[0011] As a further improvement scheme of the present invention: the gravel moving structure includes a second motor fixedly connected to the spacer frame, the output shaft of the second motor is fixedly connected to a rotating frame rotatably connected to the spacer frame, the rotating frame is fixedly connected to a third motor, the output shaft of the third motor is fixedly connected to a frame, the frame is fixedly connected to a ring frame, the ring frame is fixedly connected to multiple groups of control valves, the control valves are fixedly connected to airbags, the airbags are fixedly connected to a protective cover, the protective cover is fixedly connected to the ring frame, the multiple groups of control valves are commonly fixedly connected to a group of air guide pipes, the air guide pipes are connected to an air pressure control part, the frame is connected to an anti-wear shielding part, the rotating frame is fixedly connected to a brush rack, and the brush rack is fixedly connected to two symmetrically arranged groups of brush layers.

[0012] As a further improvement scheme of the present invention: the anti-wear shielding part includes two groups of third active telescopic rods fixedly connected to the frame, the moving ends of the two groups of third active telescopic rods are commonly fixedly connected to the first protective frame, the frame is fixedly connected to two groups of fourth active telescopic rods, and the moving ends of the two groups of fourth active telescopic rods are commonly fixedly connected to the second protective frame.

[0013] As a further improvement of the present invention: the air pressure control part includes a second cantilever frame fixedly connected to the spacer frame, the second cantilever frame is fixedly connected to a reversing valve, the reversing valve is fixedly connected to a hose, the hose is fixedly connected to the air guide pipe, the reversing valve is fixedly connected to a pressurized air pump, the reversing valve is fixedly connected to a negative pressure vacuum pump, and the pressurized air pump and the negative pressure vacuum pump are both fixedly connected to the second cantilever frame.

[0014] As a further improvement scheme of the present invention: the double-sided grinding structure includes a vertical frame fixedly connected to the spacer frame, the vertical frame is fixedly connected with two groups of fifth active telescopic rods, the movable end of the fifth active telescopic rod is fixedly connected with a slide, the slide is fixedly connected with a double-output shaft motor, the output end of the double-output shaft motor is fixedly connected with a screw, the screw is threadedly connected with an extension arm slidably connected to the slide, the extension arm is fixedly connected with the fifth motor, the output shaft of the fifth motor is fixedly connected with a grinding head, and the slide is slidably connected with two groups of track frames fixedly connected to the vertical frame.

[0015] As a further improvement of the present invention: the waste collection structure includes a first collection box arranged below the grinding head, the first collection box is fixedly connected to the spacer frame, the spacer frame is movably connected to a second collection box, and the second collection box is arranged below the second tray.

[0016] As a further improvement of the present invention: the rotating frame is fixedly connected to a bracket, the bracket is rotatably connected to a ring body, and the ring body is fixedly connected to the frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When in use, the crushed stone is fixed by the crushed stone moving structure, and then the crushed stone moving structure drives the crushed stone to move toward the double-sided grinding structure, the double-sided grinding structure performs double-sided grinding operations on the crushed stone, and then the crushed stone moving structure places the ground gravel on the second positioning platform, and the second active telescopic rod drives the first plate to press against the crushed stone, so that the first positioning platform is pressed on the top plane of the crushed stone. At this time, the control console calculates the area of ​​the two end surfaces of the crushed stone by the number and position of the pressed second pressure sensor and the first pressure sensor, and then the second active telescopic rod is reset, and the first motor drives the linkage frame to rotate, so that the first active telescopic rod drives the pressure head to move above the crushed stone, and then the first active telescopic rod drives the pressure head to apply pressure to the top of the crushed stone. During this period, the linear displacement sensor measures the displacement distance of the pressure head by measuring the distance moved by the connecting frame, and the second pressure sensor on the second positioning platform performs pressure detection operations to perform compressive strength detection operations on the crushed stone. The present invention performs double-sided grinding of crushed stone and area measurement operations through the cooperation of a crushed stone moving structure, a double-sided grinding structure, and a measuring and extruding structure. During the process, the crushed stone maintains placement stability due to the ground plane, and then pressure is applied to the other ground plane of the crushed stone, so as to obtain the pressure value of the crushed stone and perform compressive strength detection operations at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0021] Figure 3 For the present invention Figure 2 A local enlarged schematic diagram of the middle A;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the double-sided grinding structure of the present invention;

[0023] Figure 5 A schematic diagram of the three-dimensional structure of the double-sided grinding structure of the present invention from another perspective;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the crushed stone moving structure of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the ring frame, control valve, air bag, protective cover and air guide pipe fittings of the present invention cooperating with each other;

[0026] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the measuring extrusion structure of the present invention;

[0027] Fig. 9 It is a partial three-dimensional structural schematic diagram of another viewing angle of the measuring extrusion structure of the present invention.

[0028] In the figure: 1, spacer frame; 2, crushed stone moving structure; 3, double-sided grinding structure; 4, measuring extrusion structure; 5, first cantilever frame; 6, first motor; 7, linkage frame; 8, first active telescopic rod; 9, pressure head; 10, connecting frame; 11, linear displacement sensor; 12, second active telescopic rod; 13, first plate; 14, first positioning platform; 15, first pressure sensor; 16, second plate; 17, second positioning platform; 18, second pressure sensor; 19, waste collection structure; 20, second motor; 21, rotating frame; 22, third motor; 23, frame; 24, ring frame; 25, control valve; 26, airbag; 27, Protective cover; 28. Air guide pipe; 29. ​​Air pressure control unit; 30. Anti-wear shielding unit; 31. Third active telescopic rod; 32. First protective frame; 33. Fourth active telescopic rod; 34. Second protective frame; 35. Second cantilever frame; 36. Reversing valve; 37. Hose; 38. Pressurized air pump; 39. Negative pressure suction pump; 40. Stand; 41. Fifth active telescopic rod; 42. Slide; 43. Double-output shaft motor; 44. Screw; 45. Extension arm; 46. Fifth motor; 47. Grinding head; 48. Track frame; 49. First collection box; 50. Second collection box; 51. Bracket; 52. Ring body; 53. Brush holder; 54. Brush layer. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0030] Example 1, see Figures 1 to 9 As shown, a railway crushed stone ballast compressive strength testing device includes a spacer 1, the spacer 1 is fixedly connected to a control console, and also includes:

[0031] A crushed stone moving structure 2 connected to the spacer frame 1;

[0032] A double-sided grinding structure 3 connected to the spacer frame 1, the double-sided grinding structure 3 is used for double-sided grinding of crushed stone;

[0033] A measuring extrusion structure 4 connected to the spacer frame 1, the measuring extrusion structure 4 includes a first cantilever frame 5 fixedly connected to the spacer frame 1, the first cantilever frame 5 is fixedly connected to a first motor 6, the output shaft of the first motor 6 is fixedly connected to a linkage frame 7, the linkage frame 7 is fixedly connected to a first active telescopic rod 8, the moving end of the first active telescopic rod 8 is fixedly connected to a pressure head 9, the pressure head 9 is fixedly connected to a connecting frame 10, the connecting frame 10 is fixedly connected to a linear displacement sensor 11 connected to the linkage frame 7, the linkage frame 7 is fixedly connected to a second active telescopic rod 12, the moving end of the second active telescopic rod 12 is fixedly connected to a first disk body 13, the first disk body 13 is fixedly connected to a first positioning platform 14, the first positioning platform 14 is fixedly connected to a plurality of groups of first pressure sensors 15, the spacer frame 1 is fixedly connected to a second disk body 16, the second disk body 16 is fixedly connected to a second positioning platform 17, the second positioning platform 17 is fixedly connected to a plurality of groups of second pressure sensors 18;

[0034] The waste collection structure 19 connected to the spacer frame 1 is used to collect the debris of the crushed stone.

[0035] When in use, the crushed stone is fixed by the crushed stone moving structure 2, and then the crushed stone moving structure 2 drives the crushed stone to move toward the double-sided grinding structure 3, the double-sided grinding structure 3 performs double-sided grinding operation on the crushed stone, and then the crushed stone moving structure 2 places the ground gravel on the second positioning platform 17, and the second active telescopic rod 12 drives the first plate 13 to press against the crushed stone, so that the first positioning platform 14 is pressed on the top plane of the crushed stone. At this time, the control console calculates the area of ​​the two end surfaces of the crushed stone by the number and position of the pressed second pressure sensors 18 and the first pressure sensors 15. For example, the control console takes the outermost pressed second pressure sensors 18 as points, and connects the adjacent points with lines. At this time, the polygon formed by the drawn lines connects all the pressed second pressure sensors 18 is enclosed, and the area of ​​the polygon calculated at this time is close to the contact area between the crushed stone and the second pressure sensor 18, and as the interval between the second pressure sensor 18 is reduced, the error between the area calculated by the console and the area of ​​the actual end face of the crushed stone becomes smaller, and then the second active telescopic rod 12 is reset, and the first motor 6 drives the linkage frame 7 to rotate, so that the first active telescopic rod 8 drives the pressure head 9 to move above the crushed stone, and then the first active telescopic rod 8 drives the pressure head 9 to apply pressure to the top of the crushed stone. During this period, the linear displacement sensor 11 measures the displacement distance of the pressure head 9 by measuring the distance moved by the connecting frame 10, and the second pressure sensor 18 on the second positioning platform 17 performs pressure detection operation to perform compressive strength detection operation on the crushed stone. The present invention performs double-sided grinding and area measurement on the crushed stone through the cooperation of the crushed stone moving structure 2, the double-sided grinding structure 3, and the measuring and extruding structure 4. During the process, the crushed stone maintains stability due to the ground plane, and then pressure is applied to the other ground plane of the crushed stone, so as to obtain the pressure value of the crushed stone and perform compressive strength detection at the same time.

[0036] In one case of the present embodiment, the gravel moving structure 2 includes a second motor 20 fixedly connected to the spacer frame 1, the output shaft of the second motor 20 is fixedly connected to a rotating frame 21 rotatably connected to the spacer frame 1, the rotating frame 21 is fixedly connected to a third motor 22, the output shaft of the third motor 22 is fixedly connected to a frame 23, the frame 23 is fixedly connected to a ring frame 24, the ring frame 24 is fixedly connected to multiple groups of control valves 25, the control valves 25 are fixedly connected to an air bag 26, the air bag 26 is fixedly connected to a protective cover 27, the protective cover 27 is fixedly connected to the ring frame 24, the multiple groups of control valves 25 are commonly fixedly connected to a group of air guide pipes 28, the air guide pipes 28 are connected to an air pressure control part 29, the frame 23 is connected to an anti-wear shielding part 30, the rotating frame 21 is fixedly connected to a brush frame 53, and the brush frame 53 is fixedly connected to two symmetrically arranged groups of brush layers 54. The crushed stones are placed between the groups of protective sleeves 27. As the air pressure control unit 29 inflates the air guide pipe 28, the air guide pipe 28 injects the air flow into the airbag 26 through the control valve 25, so that the airbag 26 pushes the protective sleeve 27, and the protective sleeve 27 wraps the crushed stones to fix the crushed stones. Then the second motor 20 drives the rotating frame 21 to rotate, and the rotating frame 21 drives the frame 23 to rotate through the third motor 22. The frame 23 drives the ring frame 24 to move, and the ring frame 24 drives the protective sleeve 27 to move, thereby moving the crushed stones. The third motor 22 drives the machine frame 23 to rotate, and the ring frame 24 drives the protective sleeve 27 to move. The frame 23 rotates, and the frame 23 drives the ring frame 24 to rotate, so as to rotate the gravel through the protective cover 27, so as to facilitate the double-sided grinding structure 3 to grind two sets of parallel surfaces on the gravel. During this period, the anti-wear shielding part 30 prevents the double-sided grinding structure 3 from directly contacting the airbag 26, thereby providing protection for the airbag 26, and with the rotation of the rotating frame 21, the brush frame 53 drives the two sets of brush layers 54 to move, so that the brush layers 54 brush away the gravel residues remaining on the second positioning platform 17 and the first positioning platform 14, so as to perform a gravel cleaning operation on the measuring extrusion structure 4.

[0037] In one case of this embodiment, the anti-wear shielding portion 30 includes two groups of third active telescopic rods 31 fixedly connected to the frame 23, the moving ends of the two groups of third active telescopic rods 31 are commonly fixedly connected to the first protective frame 32, and the frame 23 is fixedly connected to two groups of fourth active telescopic rods 33, and the moving ends of the two groups of fourth active telescopic rods 33 are commonly fixedly connected to the second protective frame 34. The third active telescopic rod 31 drives the first protective frame 32 to move, and the fourth active telescopic rod 33 drives the second protective frame 34 to move, so that the first protective frame 32 and the second protective frame 34 shield the airbag 26 to provide protection for the airbag 26.

[0038] In one case of the present embodiment, the air pressure control unit 29 includes a second cantilever frame 35 fixedly connected to the spacer frame 1, the second cantilever frame 35 is fixedly connected to a reversing valve 36, the reversing valve 36 is fixedly connected to a hose 37, the hose 37 is fixedly connected to the air guide pipe 28, the reversing valve 36 is fixedly connected to a pressurized air pump 38, the reversing valve 36 is fixedly connected to a negative pressure air pump 39, and both the pressurized air pump 38 and the negative pressure air pump 39 are fixedly connected to the second cantilever frame 35. When the reversing valve 36 is connected to the pressurized air pump 38 and the hose 37, the pressurized air pump 38 performs an inflation operation, at which time the air guide pipe 28 delivers high-pressure gas into the airbag 26, and when the reversing valve 36 is connected to the negative pressure air pump 39 and the hose 37, the negative pressure air pump 39 performs an air extraction operation, so as to reduce the volume of the airbag 26 by air extraction, thereby facilitating the separation of the gravel and the protective cover 27 from each other.

[0039] In one case of the present embodiment, the double-sided grinding structure 3 includes a vertical frame 40 fixedly connected to the spacer frame 1, the vertical frame 40 is fixedly connected with two groups of fifth active telescopic rods 41, the movable end of the fifth active telescopic rod 41 is fixedly connected with a slide 42, the slide 42 is fixedly connected with a double-output shaft motor 43, the output end of the double-output shaft motor 43 is fixedly connected with a screw rod 44, the screw rod 44 is threadedly connected with an extension arm 45 slidably connected to the slide 42, the extension arm 45 is fixedly connected with a fifth motor 46, the output shaft of the fifth motor 46 is fixedly connected with a grinding head 47, and the slide 42 is slidably connected with two groups of track frames 48 fixedly connected to the vertical frame 40. The fifth active telescopic rod 41 pushes the slide 42 to move, the slide 42 drives the double-output shaft motor 43 to move, the double-output shaft motor 43 drives the screw rod 44 to rotate, the rotating screw rod 44 drives the extension arm 45 to move along the slide 42, the extension arm 45 drives the fifth motor 46 to move, the fifth motor 46 drives the grinding head 47 to approach each other and at the same time the fifth motor 46 drives the grinding head 47 to rotate, so that the grinding head 47 can be used to perform double-sided grinding of the gravel.

[0040] In one case of this embodiment, the waste collection structure 19 includes a first collection box 49 disposed below the grinding head 47, the first collection box 49 is fixedly connected to the spacer frame 1, the spacer frame 1 is movably connected to a second collection box 50, and the second collection box 50 is disposed below the second plate 16. The first collection box 49 is used to continue collecting debris generated by grinding, and the second collection box 50 is used to collect crushed gravel.

[0041] Embodiment 2, based on embodiment 1, refer to Figure 1 and Figure 6The rotating frame 21 is fixedly connected to a bracket 51, and the bracket 51 is rotatably connected to a ring body 52, and the ring body 52 is fixedly connected to the frame 23. The rotating frame 23 drives the ring body 52 to rotate, and the bracket 51 provides rotation support for the rotating ring body 52, thereby providing auxiliary support for the frame 23.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A railway crushed stone ballast compressive strength testing device, comprising a spacer, characterized in that: Also includes: A gravel moving structure connected to the spacer frame, the gravel moving structure includes a second motor fixedly connected to the spacer frame, the output shaft of the second motor is fixedly connected to a rotating frame rotatably connected to the spacer frame, the rotating frame is fixedly connected to a third motor, the output shaft of the third motor is fixedly connected to a frame, the frame is fixedly connected to a ring frame, the ring frame is fixedly connected to multiple groups of control valves, the control valves are fixedly connected to air bags, the air bags are fixedly connected to a protective cover, the protective cover is fixedly connected to the ring frame, the multiple groups of control valves are commonly fixedly connected to a group of air guide pipes, the air guide pipes are connected to an air pressure control unit, the frame is connected to an anti-wear shielding unit, the rotating frame is fixedly connected to a brush frame, and the brush frame is fixedly connected There are two groups of brush layers symmetrically arranged, the anti-wear shielding part includes two groups of third active telescopic rods fixedly connected to the frame, the moving ends of the two groups of third active telescopic rods are commonly fixedly connected to the first protective frame, the frame is fixedly connected to two groups of fourth active telescopic rods, the moving ends of the two groups of fourth active telescopic rods are commonly fixedly connected to the second protective frame, the air pressure control part includes a second cantilever frame fixedly connected to the spacer frame, the second cantilever frame is fixedly connected to a reversing valve, the reversing valve is fixedly connected to a hose, the hose is fixedly connected to an air guide pipe, the reversing valve is fixedly connected to a pressurized air pump, the reversing valve is fixedly connected to a negative pressure suction pump, and the pressurized air pump and the negative pressure suction pump are both fixedly connected to the second cantilever frame; A double-sided grinding structure connected to the spacer frame, the double-sided grinding structure is used for double-sided grinding of crushed stone; A measuring extrusion structure connected to the spacer frame, the measuring extrusion structure includes a first cantilever frame fixedly connected to the spacer frame, the first cantilever frame is fixedly connected to a first motor, the output shaft of the first motor is fixedly connected to a linkage frame, the linkage frame is fixedly connected to a first active telescopic rod, the movable end of the first active telescopic rod is fixedly connected to a pressure head, the pressure head is fixedly connected to a connecting frame, the connecting frame is fixedly connected to a linear displacement sensor connected to the linkage frame, the linkage frame is fixedly connected to a second active telescopic rod, the movable end of the second active telescopic rod is fixedly connected to a first disk body, the first disk body is fixedly connected to a first positioning platform, the first positioning platform is fixedly connected to multiple groups of first pressure sensors, the spacer frame is fixedly connected to a second disk body, the second disk body is fixedly connected to a second positioning platform, and the second positioning platform is fixedly connected to multiple groups of second pressure sensors; A waste collection structure connected to the spacer frame.

2. The railway crushed stone ballast compressive strength testing equipment according to claim 1, characterized in that: The double-sided grinding structure includes a vertical frame fixedly connected to the spacer frame, the vertical frame is fixedly connected to two groups of fifth active telescopic rods, the movable end of the fifth active telescopic rod is fixedly connected to a slide, the slide is fixedly connected to a double-output shaft motor, the output end of the double-output shaft motor is fixedly connected to a lead screw, the lead screw is threadedly connected to an extension arm slidably connected to the slide, the extension arm is fixedly connected to the fifth motor, the output shaft of the fifth motor is fixedly connected to a grinding head, and the slide is slidably connected to two groups of track frames fixedly connected to the vertical frame.

3. The railway crushed stone ballast compressive strength testing equipment according to claim 2, characterized in that: The waste collection structure comprises a first collection box arranged below the grinding head, wherein the first collection box is fixedly connected to a spacer frame, and the spacer frame is movably connected to a second collection box, and the second collection box is arranged below the second tray body.

4. The railway crushed stone ballast compressive strength testing equipment according to claim 1, characterized in that: The rotating frame is fixedly connected with a bracket, the bracket is rotatably connected with a ring body, and the ring body is fixedly connected with the frame.

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