Road compactness detection device

Abstract

The utility model relates to the technical field of pavement construction detection, in particular to a road compactness detection device. Comprising a trolley, a driving assembly a, a driving assembly b, a testing device, two transmission assemblies and a plurality of lifting block assemblies. A portal frame is arranged on the trolley; the transmission assembly comprises a transmission belt, a transmission roller a, a transmission roller b and a transmission roller c; the driving assembly a is used for driving the two transmission rollers b to synchronously move up and down; the driving assembly b is used for driving the two transmission rollers c to synchronously and transversely move; the plurality of lifting block assemblies are detachably mounted between the two transmission belts; the testing device comprises a vertical rod, a mounting sliding plate and a heavy block. According to the utility model, continuous testing work can be carried out, the interval time between two times of falling of the heavy block can be greatly shortened, and the testing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction detection, in particular to a road compaction detection device. Background Art

[0002] Compaction refers to the ratio of the dry density of soil or other road construction materials after compaction to the standard maximum dry density. Common methods for measuring road compaction include the compaction method, the sand filling method, and the vibration table method. The compaction method involves lifting a weight block to a certain height and then releasing the weight block, allowing the weight block to fall freely onto the compacted road surface, and then measuring the depth of the weight block embedded in the ground, thereby obtaining the compaction degree of the road surface.

[0003] A Chinese patent with announcement number CN216791916U discloses a highway compaction detection device, which includes a base frame, a motor, a rotating block, a limit rod, a claw and a weight block. The motor is placed on the base frame, the motor shaft of the motor is vertically arranged and faces the ground, the rotating block is sleeved on the motor shaft of the motor and is threadedly connected to the motor shaft of the motor; the limit rod is arranged on the base frame and vertically arranged, and the rotating block is slidably sleeved on the limit rod; the claw includes two horizontally arranged pressure rods, the pressure rods are rotatably connected to the rotating block, the rotation axis of the pressure rods is vertically arranged, and one end of the pressure rods faces the ground, and the two pressure rods are located in the same horizontal plane; the weight block is used to be placed on the two pressure rods and face the ground.

[0004] The above-mentioned disclosed patent still has the following technical defects: when conducting the next set of tests after completing one set of tests, the pressure rod needs to be driven downward to reset and then lifted again, and the rotation angle of the two pressure rods needs to be repeatedly adjusted when lifting the weight. The operation is relatively cumbersome and the test efficiency is low. Utility Model Content

[0005] The utility model aims to provide a road compaction detection device in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is a road compaction detection device, comprising:

[0007] A trolley, on which a gantry is provided;

[0008] Two sets of transmission components, the transmission components include a transmission belt, a transmission roller a, a transmission roller b and a transmission roller c, the transmission roller a is rotatably installed at the bottom end of the gantry, the transmission roller a, the transmission roller b and the transmission roller c form a triangle structure, the transmission belt is sleeved and installed on the transmission roller a, the transmission roller b and the transmission roller c, the rotating shafts of the two transmission rollers c are fixedly connected, and a motor driving the transmission roller c to rotate is installed on one side of the transmission roller c;

[0009] A driving assembly a for driving two transmission rollers b to move up and down synchronously;

[0010] A driving assembly b for driving two transmission rollers c to move synchronously in lateral direction;

[0011] A plurality of lifting block assemblies, wherein the plurality of lifting block assemblies can be detachably installed between two transmission belts;

[0012] The testing device comprises a vertical rod, a mounting slide and a weight block. The vertical rod is vertically arranged on the trolley, the mounting slide block is slidably mounted on the vertical rod, the weight block is mounted on the mounting slide block, and a through hole a is opened on the trolley for the weight block to pass through.

[0013] Preferably, a measuring mechanism is also installed on the trolley, and the measuring mechanism includes an elastic telescopic part and a magnetic scale. A through hole b is provided on the trolley, and the measuring mechanism passes through the through hole b. The elastic telescopic part includes a sleeve, a movable rod, a spring a and a limit block a, wherein the sleeve is fixed on the trolley, the upper end of the movable rod is movably arranged on the inner side of the sleeve and connected to the limit block a, the spring a is installed on the inner side of the sleeve, and a ball bearing is also installed on the bottom end of the movable rod. The magnetic scale is fixed on the trolley, and a magnetic head is slidably installed on the magnetic scale, and the magnetic head is connected to the limit block a, and a sliding hole for the magnetic head to slide is provided on the sleeve.

[0014] Preferably, the lifting block assembly includes an outer clamping plate, an inner clamping plate, a support plate, two plug posts and an elastic connecting piece. The inner clamping plate and the outer clamping plate are respectively arranged on the inner and outer sides of the transmission belt. The support plate is fixedly connected to the outer clamping plate. The two plug posts are respectively connected to the two ends of the inner clamping plate. The elastic connecting piece includes a guide rod, a spring b and a limit block b. The guide rod is connected to the outer clamping plate, the guide rod movably passes through the inner clamping plate and its end is connected to the limit block b. The spring b is sleeved and installed on the guide rod; a plurality of through holes are arranged in an array along the path direction on the adjacent side edges of the two transmission belts.

[0015] Preferably, the driving assembly a includes a linear driving mechanism a and a U-shaped frame a, the linear driving mechanism a is installed at the upper end of the gantry, the U-shaped frame a is connected to the output shaft of the linear driving mechanism a, and the two driving rollers b are rotatably installed on the U-shaped frame a.

[0016] Preferably, the driving assembly b includes a U-shaped frame b and a linear driving mechanism b, the linear driving mechanism b is installed on the trolley, the U-shaped frame b is connected to the output shaft of the linear driving mechanism b, and the two driving rollers c are rotatably installed on the U-shaped frame b.

[0017] Preferably, mounting seats are provided at both ends of the trolley, and limiting rollers are rotatably mounted on the mounting seats on both sides, and the two limiting rollers are respectively in contact with the upper end surfaces of the transmission belts on both sides.

[0018] Compared with the prior art, the utility model has the following beneficial technical effects:

[0019] 1. The rotation of the transmission belt drives the pallet to move, and the pallet lifts the mounting slide and drives the weight block to move upward. When the pallet moves to the top limited position, the pallet starts to rotate downward. After the pallet is separated from the mounting slide, the weight block hits the ground under the action of gravity, thereby realizing the testing of the road surface. When changing to the next test position, the transmission belt is continuously driven to rotate. At this time, the next lifting block assembly at the bottom lifts the mounting slide upward again, thereby eliminating the need to reset the previous lifting block assembly downward for re-lifting work, thereby improving work efficiency.

[0020] 2. By setting the driving components a and b, the lifting height of the counterweight can be adjusted, thereby adjusting the test force. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 and Figure 2 All of them are structural schematic diagrams of the present utility model.

[0022] Figure 3 It is a structural schematic diagram of the lifting block assembly in the utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the test device in the utility model

[0024] : Illustrations: 1. trolley; 101. perforation a; 2. gantry; 3. transmission belt; 301. through hole; 41. transmission roller a; 42. transmission roller b; 43. transmission roller c; 44. limit roller; 5. U-shaped frame a; 6. U-shaped frame b; 7. linear drive mechanism a; 8. linear drive mechanism b; 9. lifting block assembly; 91. outer clamping plate; 92. inner clamping plate; 93. support plate; 94. plug column; 10. vertical rod; 11. mounting slide plate; 12. weight block; 13. sleeve; 131. sliding hole; 14. movable rod; 15. spring a; 16. limit block a; 17. magnetic scale; 171. magnetic head; 18. ball; 19. guide rod; 20. spring b; 21. limit block b; 22. mounting seat. DETAILED DESCRIPTION

[0025] Embodiment 1

[0026] like Figure 1-Figure 3 As shown, a road compaction detection device proposed in this embodiment includes a trolley 1, a drive component a, a drive component b, a testing device, two sets of transmission components and a plurality of lifting block components 9.

[0027] A gantry 2 is provided on the trolley 1; the transmission assembly includes a transmission belt 3, a transmission roller a41, a transmission roller b42 and a transmission roller c43, the transmission roller a41 is rotatably installed at the bottom end of the gantry 2, the transmission roller a41, the transmission roller b42 and the transmission roller c43 form a triangular structure, the transmission belt 3 is sleeved and installed on the transmission roller a41, the transmission roller b42 and the transmission roller c43, the rotating shafts of the two transmission rollers c43 are fixedly connected, and a motor for driving the transmission roller c43 to rotate is installed on one side of the transmission roller c43; mounting seats 22 are provided at both ends of the trolley 1, and limiting rollers 44 are rotatably installed on the mounting seats 22 on both sides, and the two limiting rollers 44 are respectively in contact with the upper end surfaces of the transmission belts 3 on both sides. The setting of the limiting rollers 44 can increase the wrapping angle of the transmission belt 3 to the transmission roller c43 to prevent slipping between the transmission belt 3 and the transmission roller c43.

[0028] The driving component a is used to drive the two transmission rollers b42 to move up and down synchronously. The driving component a includes a linear driving mechanism a7 and a U-shaped frame a5. The linear driving mechanism a7 is installed at the upper end of the gantry 2, and the U-shaped frame a5 is connected to the output shaft of the linear driving mechanism a7. The two transmission rollers b42 are both rotatably installed on the U-shaped frame a5; the driving component b is used to drive the two transmission rollers c43 to move laterally synchronously. The driving component b includes a U-shaped frame b6 and a linear driving mechanism b8. The linear driving mechanism b8 is installed on the trolley 1, and the U-shaped frame b6 is connected to the output shaft of the linear driving mechanism b8. The two transmission rollers c43 are both rotatably installed on the U-shaped frame b6; the transmission roller b42 is driven to move upward by the set linear driving mechanism a7, so as to increase the lifting height of the weight 12. At the same time, the linear driving mechanism b8 is started to drive the transmission roller c43 to move toward the side of the adjacent transmission roller a41 to ensure that the transmission belt 3 is in a taut state.

[0029] Multiple lifting block assemblies 9 can be detachably installed between the two transmission belts 3. The lifting block assembly 9 includes an outer clamping plate 91, an inner clamping plate 92, a support plate 93, two plug posts 94 and an elastic connector. The inner clamping plate 92 and the outer clamping plate 91 are respectively arranged on the inner and outer sides of the transmission belt 3. The support plate 93 is fixedly connected to the outer clamping plate 91. The two plug posts 94 are respectively connected to the two ends of the inner clamping plate 92. The elastic connector includes a guide rod 19, a spring b20 and a limit block b21. The guide rod 19 is connected to the outer clamping plate 91, and the guide rod 19 movably passes through the inner clamping plate 92 and its end is connected to the limit block b21, and the spring b20 is sleeved and installed on the guide rod 19; the adjacent side edges of the two transmission belts 3 are arranged with multiple through holes 301 in an array along the path direction; when the lifting height is small, the number of installed lifting block assemblies 9 can be increased to reduce the interval falling time of the two weights 12; when the lifting block assembly 9 is disassembled, the outer clamping plate 91 and the inner clamping plate 92 are pulled outward simultaneously, so that the two plug posts 94 are moved out from the through holes 301 on both sides, thereby releasing the fixation of the lifting block assembly 9.

[0030] The testing device includes a vertical rod 10, a mounting slide 11 and a weight 12. The vertical rod 10 is vertically arranged on the trolley 1. The mounting slide 11 is slidably mounted on the vertical rod 10. The weight 12 is mounted on the mounting slide 11. The trolley 1 is provided with a through hole a101 for the weight 12 to pass through.

[0031] When testing, the motor 23 is started to drive the two transmission rollers c43 to rotate synchronously, that is, to drive the two transmission belts 3 and multiple lifting block assemblies 9 to move. When the support plate 93 contacts the mounting slide 11, the support plate 93 lifts the mounting slide 11 and drives the weight 12 to move upward. When the support plate 93 moves to the top limited position, the support plate 93 begins to rotate downward. After the support plate 93 is separated from the mounting slide 11, the weight 12 hits the ground under the action of gravity, thereby realizing the testing of the road surface. When changing to the next test position, the transmission belt 3 is continuously driven to rotate. At this time, the next lifting block assembly 9 at the bottom lifts the mounting slide 11 upward again, thereby eliminating the need to reset the previous lifting block assembly 9 downward for re-lifting work, thereby improving work efficiency, and realizing the automatic separation of the lifting block assembly 9 and the mounting slide 11, and the testing efficiency is high. Through the set drive assembly a and drive assembly b, the adjustment of the lifting height of the weight block 12 can be realized.

[0032] Embodiment 2

[0033] like Figure 2 and Figure 4 As shown, a road compaction detection device proposed in this embodiment, compared with the first embodiment, in this embodiment, a measuring mechanism is also installed on the trolley 1, the measuring mechanism includes an elastic telescopic member and a magnetic scale 17, a through hole b is opened on the trolley 1, the measuring mechanism passes through the through hole b, the elastic telescopic member includes a sleeve 13, a movable rod 14, a spring a15 and a limit block a16, wherein the sleeve 13 is fixed on the trolley 1, the upper end of the movable rod 14 is movably arranged on the inner side of the sleeve 13 and connected to the limit block a16, the spring a15 is installed on the inner side of the sleeve 13, and the bottom end of the movable rod 14 is also installed with a ball 18, The magnetic scale 17 is fixed on the trolley 1, and a magnetic head 171 is slidably installed on the magnetic scale 17. The magnetic head 171 is connected to the limit block a16, and a sliding hole 131 is provided on the sleeve 13 for the magnetic head 171 to slide. The spring a15 is set to ensure that the ball 18 is always in contact with the ground. When the ball 18 moves into the smashed pit, the ball 18 moves downward and drives the movable rod 14 and the limit block a16 to move. The limit block a16 drives the magnetic head 171 to slide on the magnetic scale 17. The magnetic scale 17 then feeds back the detected signal to the control module, so as to measure the depth of the smashed pit, and the detection process is relatively convenient.

[0034] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A road compaction detection device, characterized in that: include: A trolley (1), wherein a gantry (2) is arranged on the trolley (1); Two sets of transmission components, the transmission components include a transmission belt (3), a transmission roller a (41), a transmission roller b (42) and a transmission roller c (43), the transmission roller a (41) is rotatably mounted on the bottom end of the gantry (2), the transmission roller a (41), the transmission roller b (42) and the transmission roller c (43) form a triangular structure, the transmission belt (3) is sleeved and mounted on the transmission roller a (41), the transmission roller b (42) and the transmission roller c (43), the rotating shafts of the two transmission rollers c (43) are fixedly connected, and a motor for driving the transmission roller c (43) to rotate is installed on one side of the transmission roller c (43); A driving assembly a for driving two driving rollers b (42) to move up and down synchronously; A driving assembly b for driving two driving rollers c (43) to move synchronously in lateral direction; A plurality of lifting block assemblies (9), wherein the plurality of lifting block assemblies (9) are all detachably mounted between the two transmission belts (3); The testing device comprises a vertical rod (10), a mounting slide plate (11) and a weight block (12); the vertical rod (10) is vertically arranged on a trolley (1); the mounting slide plate (11) is slidably mounted on the vertical rod (10); the weight block (12) is mounted on the mounting slide plate (11); and a through hole a (101) is provided on the trolley (1) for the weight block (12) to pass through.

2. A road compaction detection device according to claim 1, characterized in that: The trolley (1) is also provided with a measuring mechanism, which comprises an elastic telescopic member and a magnetic scale (17). The trolley (1) is provided with a through hole b, through which the measuring mechanism passes. The elastic telescopic member comprises a sleeve (13), a movable rod (14), a spring a (15) and a limit block a (16), wherein the sleeve (13) is fixed on the trolley (1), the upper end of the movable rod (14) is movably arranged on the inner side of the sleeve (13) and connected to the limit block a (16), the spring a (15) is installed on the inner side of the sleeve (13), a ball bearing (18) is also installed on the bottom end of the movable rod (14), the magnetic scale (17) is fixed on the trolley (1), a magnetic head (171) is slidably installed on the magnetic scale (17), the magnetic head (171) is connected to the limit block a (16), and a sliding hole (131) for the magnetic head (171) to slide is provided on the sleeve (13).

3. A road compaction detection device according to claim 1, characterized in that: The lifting block assembly (9) includes an outer clamping plate (91), an inner clamping plate (92), a support plate (93), two plug posts (94) and an elastic connecting piece. The inner clamping plate (92) and the outer clamping plate (91) are respectively arranged on the inner and outer sides of the transmission belt (3). The support plate (93) is fixedly connected to the outer clamping plate (91). The two plug posts (94) are respectively connected to the two ends of the inner clamping plate (92). The elastic connecting piece includes a guide rod (19), a spring b (20) and a limit block b (21). The guide rod (19) is connected to the outer clamping plate (91). The guide rod (19) movably passes through the inner clamping plate (92) and its end is connected to the limit block b (21). The spring b (20) is sleeved and installed on the guide rod (19); a plurality of through holes (301) are arranged in an array along the path direction on the adjacent side edges of the two transmission belts (3).

4. A road compaction detection device according to claim 1, characterized in that: The driving assembly a comprises a linear driving mechanism a (7) and a U-shaped frame a (5), wherein the linear driving mechanism a (7) is mounted on the upper end of the gantry (2), the U-shaped frame a (5) is connected to the output shaft of the linear driving mechanism a (7), and two driving rollers b (42) are both rotatably mounted on the U-shaped frame a (5).

5. A road compaction detection device according to claim 1, characterized in that: The driving assembly b comprises a U-shaped frame b (6) and a linear driving mechanism b (8), wherein the linear driving mechanism b (8) is mounted on the trolley (1), the U-shaped frame b (6) is connected to the output shaft of the linear driving mechanism b (8), and the two driving rollers c (43) are both rotatably mounted on the U-shaped frame b (6).

6. A road compaction detection device according to claim 1, characterized in that: Both ends of the trolley (1) are provided with mounting seats (22), and limiting rollers (44) are rotatably mounted on the mounting seats (22) on both sides, and the two limiting rollers (44) are respectively in contact with the upper end surfaces of the transmission belts (3) on both sides.

Images