Roadbed compactness measuring device

Abstract

The utility model relates to the technical field of compaction degree measurement, in particular to a roadbed compaction degree measuring device which comprises a frame, a first motor, an electric cylinder and a second motor, wheels are movably connected to the surface of the frame, a handle is fixedly connected to the surface of the frame, and a limiting groove is formed in the surface of the frame. Through the connection of the rack and the pull rope and the connection of the pull rope and the impact hammer, the supporting of the action position of the impact hammer on the frame is realized, and under the action of the storage bin, the measurement operation range and the performance of equipment are improved while the road surface is not damaged by filling gravel in the impact hammer and changing the action weight of the impact hammer; and under the connection of the impact hammer and the limiting plate, through the connection of the limiting plate and the sliding block and the sliding connection of the sliding block and the sliding groove, the effect of limiting and supporting the action angle when the impact hammer freely falls is achieved, and the impact hammer and the limiting cylinder are prevented from colliding to influence the measurement precision of the roadbed compactness.

Description

Technical Field

[0001] The utility model relates to the technical field of compaction degree measurement, in particular to a roadbed compaction degree measuring device. Background Art

[0002] Compaction refers to the degree of density achieved by materials such as soil, gravel, and road base during the compaction process. It is one of the important indicators for measuring the quality of engineering construction. It can be quickly detected by using compaction measuring equipment. However, when using existing compaction measuring equipment, it is often necessary to destroy the road surface for measurement. After the measurement, it is inconvenient to repair the road surface. Therefore, equipment that does not damage the road surface is now used to measure its compaction. The principle is to use samples of the same material as the roadbed material to complete the measurement. The advantage is that the road surface does not need to be damaged, but on-site measurements cannot be performed and the measurement accuracy is not high. Utility Model Content

[0003] The purpose of the utility model is to provide a roadbed compaction measuring device to solve the problem proposed in the above-mentioned background technology that it is often necessary to destroy the road surface for measurement. After the measurement is completed, the road surface needs to be repaired, which is inconvenient. The compaction measurement is measured using equipment that does not damage the road surface. The advantage of this method is that the road surface does not need to be destroyed, but on-site measurement cannot be performed and the measurement accuracy is not high.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roadbed compaction measuring device, comprising a frame, a first motor, an electric cylinder and a second motor, the surface of the frame being movably connected to a wheel, the surface of the frame being fixedly connected to a handle, the surface of the frame being provided with a limiting groove, the surface of the frame being fixedly connected to a support plate, the first motor acting on the surface of the support plate, the output shaft of the first motor being sleeved with a belt, the upper surface of the support plate being fixedly connected to a fixing frame, the surface of the fixing frame being movably connected to a cam, the surface of the cam being fixedly connected to a rotating wheel, and the surface of the support plate being penetrated by a telescopic rod The surface of the support plate is connected with a rack through it, the surface of the rack is fixedly connected with a pull rope, the bottom end of the pull rope is fixedly connected with an impact hammer, the outer surface of the telescopic rod is fixedly connected with a fixed plate, the surface of the fixed plate is fixedly connected with a telescopic spring, the bottom end of the telescopic rod is fixedly connected with a fixing rod, the surface of the fixing rod is fixedly connected with a limiting cylinder, the surface of the frame is fixedly connected with a fixing plate, the surface of the impact hammer is fixedly connected with a limiting plate, the surface of the support plate is fixedly connected with a slide rail, the surface of the limiting plate is fixedly connected with a slider, the surface of the fixing plate is provided with a slide groove, and the surface of the impact hammer is provided with a storage bin.

[0005] Preferably, the frame is composed of two parts, one part of the frame is plate-shaped, and the other part of the frame is cylindrical, the support plate is plate-shaped, and the wheels are in four groups and act on the four sides of the frame.

[0006] Preferably, the cam acts on the upper side of the support plate via a fixed frame, the output end of the first motor is rotationally connected to the wheel via a belt, and the cam is rotationally connected to the fixed frame via the wheel.

[0007] Preferably, the telescopic rod and the cam are abutted and connected, the two ends of the telescopic spring are fixedly connected to the surfaces of the fixed disk and the support plate, the fixed rod is in a "Z" shape, and the diameter of the limiting cylinder is smaller than the diameter of the limiting groove.

[0008] Preferably, the output shaft of the second motor is fixedly connected with a gear, the gear and rack are meshed and rotatably connected, the rack is slidably connected to the support plate through the second motor, and the impact hammer acts on the lower position of the rack through a pull rope.

[0009] Preferably, the output shaft of the electric cylinder is fixedly connected to the second motor housing, the second motor is slidably connected via a slide rail and a support plate, the fixed plate is in the shape of a long strip, and the diameter of the impact hammer is smaller than the diameter of the limiting cylinder.

[0010] Preferably, the limit plate is in the shape of a long plate, the cross-section of the slider is in a "T" shape, the slider and the slide groove are slidably connected, the storage bin is in the shape of a circular groove, a connecting rod is fixedly connected to the inner side of the storage bin, and the connecting rod is evenly distributed on the inner side of the storage bin with the center of the impact hammer as the center.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Through the connection between the frame and the support plate, under the action of the first motor and the belt, the rotation control effect of the rotating wheel and the cam is realized, and under the abutment connection of the cam and the telescopic rod, the effect of regulating the action position of the limit cylinder on the frame is realized. Through the connection between the rack and the pull rope, and the connection between the pull rope and the impact hammer, the support of the action position of the impact hammer on the frame is realized. Under the action of the storage bin, the action weight of the impact hammer is changed by filling the inside of the storage bin with sand and gravel, and the measurement operation range and performance of the equipment are improved without damaging the road surface. In addition, under the connection between the impact hammer and the limit plate, through the connection between the limit plate and the slider, and the sliding connection between the slider and the slide groove, the effect of limiting the support of the action angle of the impact hammer during free fall is achieved, so as to avoid collision between the impact hammer and the limit cylinder, which affects the measurement accuracy of the compaction degree of the roadbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a three-dimensional schematic diagram of the structure of the utility model from the back;

[0015] Figure 3 It is a side perspective schematic diagram of the structure of the cam of the utility model;

[0016] Figure 4 It is a partial three-dimensional schematic diagram of the connection structure between the support plate and the rack of the utility model;

[0017] Figure 5 For this utility model Figure 4 A partial sectional perspective diagram of the connection structure between the middle fixing plate and the limiting plate.

[0018] In the figure: 1. frame; 2. wheel; 3. handle; 4. limit groove; 5. support plate; 6. first motor; 7. belt; 8. rotating wheel; 9. fixed frame; 10. cam; 11. telescopic rod; 12. electric cylinder; 13. second motor; 14. rack; 15. pull rope; 16. impact hammer; 17. fixed plate; 18. telescopic spring; 19. fixed rod; 20. limit cylinder; 21. fixed plate; 22. limit plate; 23. slide rail; 24. slider; 25. slide groove; 26. storage bin. DETAILED DESCRIPTION

[0019] See also Figure 1-5 , an embodiment provided by the utility model:

[0020] A roadbed compaction degree measuring device comprises a frame 1, a first motor 6, an electric cylinder 12 and a second motor 13, a wheel 2 is movably connected to the surface of the frame 1, a handle 3 is fixedly connected to the surface of the frame 1, a limiting groove 4 is provided on the surface of the frame 1, a support plate 5 is fixedly connected to the surface of the frame 1, the first motor 6 acts on the surface of the support plate 5, a belt 7 is sleeved on the output shaft of the first motor 6, a fixing frame 9 is fixedly connected to the upper surface of the support plate 5, a cam 10 is movably connected to the surface of the fixing frame 9, a rotating wheel 8 is fixedly connected to the surface of the cam 10, a telescopic rod 11 is penetrated and connected to the surface of the support plate 5, a rack 14 is penetrated and connected to the surface of the rack 14, a pull rope 15 is fixedly connected to the surface of the rack 14, an impact hammer 16 is fixedly connected to the bottom end of the pull rope 15, a fixed disk 17 is fixedly connected to the outer surface of the telescopic rod 11, and the surface of the fixed disk 17 A telescopic spring 18 is fixedly connected to the surface, a fixed rod 19 is fixedly connected to the bottom end of the telescopic rod 11, a limiting cylinder 20 is fixedly connected to the surface of the fixed rod 19, a fixed plate 21 is fixedly connected to the surface of the frame 1, a limiting plate 22 is fixedly connected to the surface of the impact hammer 16, a slide rail 23 is fixedly connected to the surface of the support plate 5, a slider 24 is fixedly connected to the surface of the limiting plate 22, a slide groove 25 is provided on the surface of the fixed plate 21, a storage bin 26 is provided on the surface of the impact hammer 16, through the connection between the first motor 6 and the belt 7, under the connection between the belt 7 and the rotating wheel 8, the rotation control effect of the cam 10 is realized, and the abutment connection between the cam 10 and the telescopic rod 11 is achieved to achieve the effect of regulating the action position of the telescopic rod 11 on the support plate 5, and under the action of the second motor 13 and the rack 14, the control operation of the action position of the impact hammer 16 on the frame 1 is completed.

[0021] Furthermore, the frame 1 is composed of two parts, one part of the frame 1 is plate-shaped, and the other part of the frame 1 is cylindrical, the support plate 5 is plate-shaped, and the wheels 2 are in four groups acting on the four sides of the frame 1. Through the connection between the frame 1 and the support plate 5, under the action of the support plate 5, the placement and support operation of the equipment parts is realized, and under the action of the wheels 2 and the handle 3, the moving operation effect of the action position of the frame 1 is achieved.

[0022] Furthermore, the cam 10 acts on the top of the support plate 5 through the fixed frame 9, the output end of the first motor 6 is rotatably connected to the pulley 8 through the belt 7, and the cam 10 is rotatably connected to the fixed frame 9 through the pulley 8. Through the connection between the fixed frame 9 and the cam 10, under the action of the first motor 6 and the belt 7, the connection between the belt 7 and the pulley 8 achieves the effect of controlling the rotation of the cam 10.

[0023] Furthermore, the telescopic rod 11 and the cam 10 are abutted and connected, the two ends of the telescopic spring 18 are fixedly connected to the surfaces of the fixed plate 17 and the support plate 5, the fixed rod 19 is in a "Z" shape, the diameter of the limiting cylinder 20 is smaller than the diameter of the limiting groove 4, and the cam 10 and the telescopic rod 11 are abutted and connected, under the connection between the telescopic rod 11 and the fixed plate 17, the connection between the fixed plate 17 and the telescopic spring 18 realizes the elastic sliding effect of the telescopic rod 11 on the support plate 5, and through the connection between the fixed rod 19 and the limiting cylinder 20, the telescopic rod 11 achieves the effect of regulating the position of the limiting cylinder 20 on the frame 1.

[0024] Furthermore, the output shaft of the second motor 13 is fixedly connected with a gear, the gear and the rack 14 are meshed and rotatably connected, the rack 14 is slidably connected to the support plate 5 through the second motor 13, and the impact hammer 16 acts on the lower position of the rack 14 through the pull rope 15. Through the connection between the second motor 13 and the gear, under the connection between the gear and the rack 14, the support and control effect of the action position of the impact hammer 16 is achieved.

[0025] Furthermore, the output shaft of the electric cylinder 12 is fixedly connected to the housing of the second motor 13, the second motor 13 is slidably connected to the support plate 5 through the slide rail 23, the fixed plate 21 is in the shape of a long strip, and the diameter of the impact hammer 16 is smaller than the diameter of the limiting cylinder 20. Through the connection between the electric cylinder 12 and the second motor 13, under the sliding connection between the second motor 13 and the slide rail 23, the separation and connection of the gear and rack 14 on the second motor 13 are controlled to achieve the control effect of the action position of the impact hammer 16 on the frame 1.

[0026] Furthermore, the limit plate 22 is in the shape of a long plate, the cross-section of the slider 24 is in a "T" shape, the slider 24 and the slide groove 25 are slidably connected, the storage bin 26 is in the shape of a circular groove, and a connecting rod is fixedly connected to the inner side of the storage bin 26, and the connecting rod is evenly distributed on the inner side of the storage bin 26 with the center of the impact hammer 16 as the center. Under the connection between the impact hammer 16 and the limit plate 22, the sliding connection of the slider 24 and the slide groove 25 can achieve the effect of limiting the angle of the impact hammer 16 when it falls. Under the action of the storage bin 26, by filling the interior with sand and gravel, the weight of the impact hammer 16 is changed, thereby achieving the effect of improving the measurement range and performance.

[0027] Working principle: When measuring the compaction degree of the roadbed, first push the frame 1 to the corresponding position, then start the first motor 6, and under the connection between the belt 7 and the rotating wheel 8, the cam 10 rotates, and the cam 10 and the telescopic rod 11 are connected, and the telescopic rod 11 and the fixed rod 19 are connected to change the action position of the limit cylinder 20 on the frame 1, and then start the electric cylinder 12 to separate the gear and rack 14 on the second motor 13, so that the impact hammer 16 falls freely, and under the connection between the limit plate 22 and the impact hammer 16, the slider The sliding connection between 24 and the slide groove 25 can limit the falling angle of the impact hammer 16, so that the impact hammer 16 acts on the middle position of the limit cylinder 20. After the measurement of the compaction degree of the roadbed is completed by relevant measuring instruments and calculation methods, the electric cylinder 12 pushes the second motor 13 to re-engage the gear and the rack 14 to rotate, so that the rack 14 drives the impact hammer 16 to reset its position, the first motor 6 drives the cam 10 to rotate, and the telescopic rod 11 drives the limit cylinder 20 to reset under the action of the telescopic spring 18.

Claims

1. A roadbed compaction measurement device, comprising a frame, a first motor, an electric cylinder and a second motor, characterized in that: The surface of the frame is movably connected to the wheel, the surface of the frame is fixedly connected to the handle, the surface of the frame is provided with a limiting groove, the surface of the frame is fixedly connected to a support plate, the first motor acts on the surface of the support plate, the output shaft of the first motor is sleeved with a belt, the upper surface of the support plate is fixedly connected to a fixing frame, the surface of the fixing frame is movably connected to a cam, the surface of the cam is fixedly connected to a rotating wheel, the surface of the support plate is penetrated by a telescopic rod, the surface of the support plate is penetrated by a rack, the surface of the rack is fixedly connected to a pull rope, the bottom end of the pull rope is fixedly connected to an impact hammer, the outer surface of the telescopic rod is fixedly connected to a fixed disk, the surface of the fixed disk is fixedly connected to a telescopic spring, the bottom end of the telescopic rod is fixedly connected to a fixing rod, the surface of the fixing rod is fixedly connected to a limiting cylinder, the surface of the frame is fixedly connected to a fixing plate, the surface of the impact hammer is fixedly connected to the limiting plate, the surface of the support plate is fixedly connected to a slide rail, the surface of the limiting plate is fixedly connected to a slider, the surface of the fixing plate is provided with a slide groove, and the surface of the impact hammer is provided with a storage bin.

2. A roadbed compaction measurement device according to claim 1, characterized in that: The frame is composed of two parts, one part of which is plate-shaped and the other part of which is cylindrical. The support plate is plate-shaped and the wheels are in four groups and act on the four sides of the frame.

3. A roadbed compaction measurement device according to claim 1, characterized in that: The cam acts on the upper side of the support plate through a fixed frame, the output end of the first motor is rotationally connected to the rotating wheel through a belt, and the cam is rotationally connected to the fixed frame through the rotating wheel.

4. A roadbed compaction measurement device according to claim 1, characterized in that: The telescopic rod is abutted against the cam, the two ends of the telescopic spring are fixedly connected to the surfaces of the fixed disk and the support plate, the fixed rod is in a "Z" shape, and the diameter of the limiting cylinder is smaller than the diameter of the limiting groove.

5. A roadbed compaction measurement device according to claim 1, characterized in that: The output shaft of the second motor is fixedly connected with a gear, the gear is meshed and rotationally connected with a rack, the rack is slidingly connected with a support plate through the second motor, and the impact hammer acts on a position below the rack through a pull rope.

6. A roadbed compaction measurement device according to claim 1, characterized in that: The output shaft of the electric cylinder is fixedly connected to the second motor housing, the second motor is slidably connected to the support plate via a slide rail, the fixed plate is in the shape of a long strip, and the diameter of the impact hammer is smaller than the diameter of the limiting cylinder.

7. A roadbed compaction measurement device according to claim 1, characterized in that: The limit plate is in the shape of a long plate, the cross-section of the slider is in a "T" shape, the slider and the slide groove are slidably connected, the storage bin is in the shape of a circular groove, a connecting rod is fixedly connected to the inner side of the storage bin, and the connecting rod is evenly distributed on the inner side of the storage bin with the center of the impact hammer as the center.

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