Highway subgrade compression resistance testing device

Abstract

The utility model relates to a highway subgrade compression resistance testing device, and relates to the field of subgrade compression resistance testing devices. The device comprises a test seat, the test seat comprises a top plate and two vertical plates, the two vertical plates are symmetrically installed on the lower end face of the top plate and are vertically and fixedly connected with the top plate, a horizontal sliding seat is fixedly installed between the two vertical plates, wheel carriers are symmetrically installed on the horizontal sliding seat, and the wheel carriers are slidably connected with the horizontal sliding seat. The lower end face of the top plate is provided with driving pieces for driving the two vertical plates to get close or away. The horizontal sliding seat is fixedly mounted on the test seat, and the two groups of wheel carriers are mounted in a sliding manner through the horizontal sliding seat, so that the two ends of the detection roller can be clamped through the two groups of wheel carriers during use, and the detection roller can be driven to stably move on the road surface through the wheel carriers to perform test operation; and meanwhile, the distance between the two groups of wheel carriers can be adjusted through the driving piece, so that the detection rollers with different sizes can be positioned and mounted easily.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of roadbed compression resistance testing devices, in particular to a highway roadbed compression resistance testing device. BACKGROUND

[0002] Highways are generally composed of roadbeds and kerbs, and drainage ditches are formed between the kerbs and the roadbeds. After the highway is built, the roadbeds usually need to be tested for compression resistance to determine the maximum load that the highway can bear, so as to avoid damage to the highway roadbed caused by vehicle overload.

[0003] The existing Chinese patent with the publication number CN221941288U discloses a highway roadbed compression resistance testing device. In the prior art, a detection roller is generally used to test the roadbed compression resistance. However, in actual use, a large number of stones or debris can easily adhere to the detection roller. If these stones or debris are not timely removed, the service life of the detection roller will be reduced. To solve this problem, the present application proposes the following scheme, which includes a top plate, two electric push rods are fixedly arranged on the top plate, and a recess is fixedly connected to the bottom ends of the two electric push rods.

[0004] With regard to the above-mentioned related technology, it is found that the highway roadbed compression resistance testing device can only install a detection roller of a certain width for testing. However, different road surfaces have different types of use, and the stress on the road surface detected by different width detection rollers is also different. Therefore, the traditional roadbed testing device has a narrow application range. CONTENT OF THE UTILITY MODEL

[0005] In order to facilitate flexible replacement of different detection rollers for testing operations, the present application provides a highway roadbed compression resistance testing device.

[0006] The highway roadbed compression resistance testing device provided by the present application adopts the following technical scheme:

[0007] A highway roadbed compression resistance testing device includes a testing seat, which includes a top plate and two groups of vertical plates. The two groups of vertical plates are symmetrically installed on the lower end surface of the top plate and are vertically fixedly connected to the top plate. A horizontal sliding seat is fixedly installed between the two groups of vertical plates. A wheel carrier is symmetrically installed on the horizontal sliding seat and is slidingly connected to the horizontal sliding seat. A driving member is installed on the lower end surface of the top plate to drive the two groups of vertical plates to approach or move away from each other. Detection rollers are installed on the lower ends of the two groups of vertical plates and are rotatably connected to the vertical plates.

[0008] By adopting the technical scheme, the test seat is designed as a structure matched by the top plate and the two groups of vertical plates, the test seat can be installed on the moving vehicle through the top plate during use, the test seat can be easily moved during equipment testing, the two groups of vertical plates are fixedly installed at the lower end of the top plate, the horizontal sliding seat can be fixedly installed through the two groups of vertical plates, the two ends of the horizontal sliding seat can be attached to the inner side surface of the vertical plate for stable use, then the two groups of wheel frames can be slidably installed through the horizontal sliding seat, the detection roller can be installed and detected through the two groups of wheel frames during use, and the two groups of vertical plates can be driven to adjust the interval through the driving member during installation of detection rollers of different sizes, so that detection rollers of different sizes can be flexibly installed and used.

[0009] Optionally, the top plate is provided with connecting ears at both ends, and the connecting ears are integrally formed with the top plate.

[0010] By adopting the technical scheme, the connecting ears are arranged at both ends of the top plate, the connecting ears are connected with external equipment during use, and the top plate is fixedly installed through bolts.

[0011] Optionally, the horizontal sliding seat comprises an inner side plate and a horizontal frame, the inner side plate is installed at both ends of the horizontal frame, and the inner side plate is fixedly connected with the horizontal frame, and the inner side plate is fixedly installed on the inner side surface of the vertical plate through bolts.

[0012] By adopting the technical scheme, the horizontal sliding seat is designed as a structure matched by the inner side plate and the horizontal frame, the horizontal frame can be fixedly installed on the inner side surface of the vertical plate through the inner side plates at both ends during use, and the wheel frame can be stably installed through the horizontal frame, the wheel frame can be stably slidably adjusted on the horizontal frame, and the mutual interval of the two side wheel frames can be adjusted.

[0013] Optionally, the wheel frame comprises a top seat and a positioning frame plate, the positioning frame plate is vertically installed at one end of the top seat, and the positioning frame plate is integrally formed with the top seat.

[0014] By adopting the technical scheme, the wheel frame is designed as a structure matched by the top seat and the positioning frame plate, the wheel frame can be installed on the horizontal frame through the top seat during use, and the detection roller can be installed through the positioning frame plate by fixing the positioning frame plate to the lower end surface of the top seat.

[0015] Optionally, the top seat comprises a seat plate and a threaded pipe, the threaded pipe is installed on the upper end surface of the seat plate, and the two sides of the threaded pipe are symmetrically provided with fixed support plates connected with the seat plate.

[0016] By adopting the technical scheme, the top base is designed as a structure matched with the threaded pipe and the seat plate, the seat plate can be matched with the driving member through the threaded pipe during use, the driving member is convenient for controlling the movement of the top base to adjust the use position, and the fixed supporting plates are symmetrically arranged on the two sides of the threaded pipe, which is convenient for stably fixing the threaded pipe on the upper end face of the seat plate through the fixed supporting plates.

[0017] Optionally, two matched sliding grooves are symmetrically arranged on the upper end face of the seat plate, and the seat plate is installed on the horizontal frame through the matched sliding grooves.

[0018] By adopting the technical scheme, two matched sliding grooves are symmetrically arranged on the upper end face of the seat plate, so that the seat plate can be sleeved on the horizontal frame through the matched sliding grooves during use, and the seat plate can be stably adjusted during use.

[0019] Optionally, the driving member comprises a motor and a double-head screw rod matched with the threaded pipe, the motor is fixedly installed on the outer side face of the vertical plate, and the double-head screw rod is rotatably installed at the two ends of the vertical plate and connected with the output end of the motor.

[0020] By adopting the technical scheme, the driving member is designed as a structure matched with the motor and the double-head screw rod, the motor is fixedly installed on the outer side face of the vertical plate during installation, and the motor can be a servo motor with a brake structure, so that the motor can rotate during normal driving and can be automatically locked when the rotation shaft is stopped, thereby ensuring stability during use, and the threaded pipes on the two ends of the top base are symmetrically installed at the two ends of the double-head screw rod through the double-head screw rod, so that the two threaded pipes are driven to move away from each other when the motor drives the double-head screw rod to rotate in the forward direction, and the two threaded pipes are driven to move towards each other when the motor drives the double-head screw rod to rotate in the reverse direction, thereby achieving the purpose of flexible adjustment.

[0021] Optionally, the detection roller comprises a center shaft and a pressing roller body, the pressing roller body is sleeved and installed on the center shaft, and the pressing roller body is fixedly connected with the center shaft, and the auxiliary bearing for installing the center shaft is arranged on the position close to the lower end of the positioning frame plate, and the auxiliary bearing is fixedly connected with the positioning frame plate.

[0022] By adopting the technical scheme, the detection roller is designed as a structure matched with the center shaft and the pressing roller body, so that the pressing roller body can be sleeved and fixed on the center shaft during use, and then the center shaft is installed on the auxiliary bearing of the positioning frame plate, thereby facilitating the stable rotation of the detection roller during detection operation.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: the present application is fixedly installed on the test seat through the horizontal sliding seat, and two groups of wheel frames are slidably installed through the horizontal sliding seat, so that the two groups of wheel frames can be clamped at both ends of the detection roller during use, so that the detection roller can be stably moved on the road surface through the wheel frame to test the work, and the distance between the two groups of wheel frames can be adjusted through the driving member, so that detection rollers of different sizes can be easily positioned and installed, and the detection roller can be easily replaced when testing different road surfaces, and the present application has the advantages of flexible installation and wide test application range. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a perspective view of the overall structure in the embodiment of the present application.

[0025] Figure 2 is a front view of the device shown in Figure 1 .

[0026] Figure 3 is a perspective view of the device shown in Figure 1 when the detection roller is not installed.

[0027] Figure 4 is a partial enlarged view of device A shown in Figure 3 .

[0028] Figure 5 is a perspective view of the detection roller in the embodiment of the present application.

[0029] BRIEF DESCRIPTION OF DRAWINGS: 1, test seat; 11, top plate; 111, connecting lug; 12, vertical plate; 2, horizontal sliding seat; 21, inner side plate; 22, horizontal frame; 3, wheel frame; 31, top seat; 311, seat plate; 312, threaded pipe; 313, fixed support plate; 314, matching sliding groove; 32, positioning frame plate; 321, auxiliary bearing; 4, driving member; 41, motor; 42, double-headed screw; 5, detection roller; 51, center shaft; 52, compression roller body. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] The embodiment of the present application discloses a highway roadbed compression resistance testing device. Referring to Figure 1 , Figure 2 and Figure 3As shown in the figure, a kind of highway subgrade compression resistance testing device, including test seat 1, test seat 1 includes top plate 11 and two groups of vertical plate 12, two groups of vertical plate 12 are symmetrically installed on the lower end surface of top plate 11, and vertical plate 12 is vertically fixedly connected with top plate 11, and horizontal slide 2 is fixedly installed between two groups of vertical plate 12, wheel frame 3 is symmetrically installed on horizontal slide 2, wheel frame 3 is slidably connected with horizontal slide 2, and driving member 4 is installed at the lower end of top plate 11 to drive two groups of vertical plate 12 to approach or move away, and detection roller 5 is also installed at the lower end of two groups of vertical plate 12, and detection roller 5 is rotatably connected with vertical plate 12.By being designed into the structure that top plate 11 and two groups of vertical plate 12 cooperate, it is easy to use the top plate 11 to be installed on the moving vehicle, and the equipment test can be easily moved, and two groups of vertical plate 12 are fixedly installed at the lower end of top plate 11, so that horizontal slide 2 can be fixedly installed by two groups of vertical plate 12, to ensure that the two ends of horizontal slide 2 can be attached to the inner side surface of vertical plate 12 for stable use, so as to facilitate the sliding installation of two groups of wheel frames 3 through horizontal slide 2, to ensure that two groups of wheel frames 3 can be used for installing detection roller 5, and the driving member 4 can drive two groups of vertical plate 12 to adjust the spacing when installing detection roller 5 of different sizes, to ensure that different detection rollers 5 can be flexibly installed and used.The two ends of top plate 11 are provided with connecting ears 111, and the connecting ears 111 are integrally formed with top plate 11.By providing connecting ears 111 at the two ends of top plate 11, it is convenient to cooperate with external equipment for connection when using, and it is easy to be fixed and installed by bolt.

[0032] Referring to Figure 1 and Figure 2 As shown in the figure, horizontal slide 2 includes inner side plate 21 and horizontal frame 22, inner side plate 21 is installed at the two ends of horizontal frame 22, and inner side plate 21 is fixedly connected with horizontal frame 22, and inner side plate 21 is fixed on the inner side surface of vertical plate 12 by bolt.By being designed into the structure that inner side plate 21 and horizontal frame 22 cooperate, it is easy to use the horizontal frame 22 to be fixedly installed on the inner side surface of vertical plate 12 through the inner side plate 21 at two ends, and the setting of horizontal frame 22 can ensure that wheel frame 3 can be stably installed, so that wheel frame 3 can be stably adjusted on horizontal frame 22, and the mutual spacing of two side wheel frames 3 can be adjusted.

[0033] Referring to Figure 2 、 Figure 3 and Figure 4As shown, the wheel frame 3 comprises a top seat 31 and a positioning frame plate 32, the positioning frame plate 32 is vertically installed at one end of the top seat 31, and the positioning frame plate 32 is integrally formed with the top seat 31. By designing the wheel frame 3 as a structure that the top seat 31 and the positioning frame plate 32 cooperate, it is easy to use the top seat 31 to be installed on the horizontal frame 22, and at the same time, by fixing the positioning frame plate 32 to the lower end face of the top seat 31, the purpose of installing the detection roller 5 through the positioning frame plate 32 is achieved. The top seat 31 comprises a seat plate 311 and a threaded tube 312, the threaded tube 312 is installed on the upper end face of the seat plate 311, and the two sides of the threaded tube 312 are symmetrically provided with fixed support plates 313 connected with the seat plate 311. By designing the top seat 31 as a structure that the seat plate 311 and the threaded tube 312 cooperate, it is easy to use the seat plate 311 to be screwed with the driving part 4 through the threaded tube 312, which facilitates the control of the top seat 31 to move and adjust the use position through the driving part 4, and the fixed support plates 313 are symmetrically arranged on both sides of the threaded tube 312, which facilitates the stable fixation of the threaded tube 312 on the upper end face of the seat plate 311 through the fixed support plates 313. Two matching sliding grooves 314 are symmetrically formed on the upper end face of the seat plate 311, and the seat plate 311 is installed on the horizontal frame 22 through the matching sliding grooves 314. By symmetrically forming two matching sliding grooves 314 on the upper end face of the seat plate 311, the seat plate 311 can be sleeved on the horizontal frame 22 through the matching sliding grooves 314 during use, which facilitates stable sliding adjustment during use.

[0034] Referring to Figure 2 and Figure 4 As shown, the driving part 4 comprises a motor 41 and a double-head screw rod 42 matched with the threaded tube 312, the motor 41 is fixedly installed on the outer side face of the vertical plate 12, the double-head screw rod 42 is rotatably installed at both ends in the vertical plate 12, and one end of the double-head screw rod 42 is connected with the output end of the motor 41. By arranging the driving part 4 as a structure that the motor 41 and the double-head screw rod 42 cooperate, it is ensured that the motor 41 is fixedly installed on the outer side face of the vertical plate 12 during installation, and the motor 41 can adopt a servo motor 41 with a brake structure, which facilitates the rotation of the motor 41 during normal driving, and the automatic locking of the rotating shaft when the rotation stops, ensuring the stability during use. The threaded tube 312 on both ends of the top seat 31 is symmetrically installed at both ends of the double-head screw rod 42 through the arrangement of the double-head screw rod 42, so that when the motor 41 drives the double-head screw rod 42 to rotate forward, the two-end threaded tubes 312 can be driven to move away from each other synchronously, and vice versa, when the motor 41 drives the double-head screw rod 42 to rotate reversely, the two-end threaded tubes 312 can be driven to approach each other synchronously, thereby achieving the purpose of flexible adjustment and use.

[0035] Referring to Figure 1 and Figure 5As shown, the detection roller 5 comprises a center shaft 51 and a compression roller body 52, the compression roller body 52 is sleeved and installed on the center shaft 51, and the compression roller body 52 is fixedly connected with the center shaft 51, the auxiliary bearing 321 for installing the center shaft 51 is arranged on the position close to the lower end of the positioning frame plate 32, and the auxiliary bearing 321 is fixedly connected with the positioning frame plate 32. By designing the detection roller 5 as the structure that the center shaft 51 and the compression roller body 52 are matched, the compression roller body 52 can be sleeved and fixed on the center shaft 51 during use, and then the center shaft 51 is installed on the auxiliary bearing 321 of the positioning frame plate 32 through both ends, so that the detection roller 5 can stably rotate for detection work.

[0036] The implementation principle of the highway subgrade compression resistance testing device provided in the embodiment of the application is as follows: during actual testing, an operator can adjust the distance between the two groups of wheel frames 3 according to the size of the detection roller 5 to be installed, first starts the motor 41 to drive the double-headed screw rod 42 to rotate forward, and then drives the two groups of wheel frames 3 to move away from each other through the cooperation of the double-headed screw rod 42 and the threaded pipe 312, so that the detection roller 5 can stably move between the two groups of wheel frames 3, then adjusts the height of the testing seat 1 through an external device, and ensures that the auxiliary bearing 321 on the positioning frame plate 32 is aligned with the center shaft 51 of the detection roller 5, and then starts the motor 41 to drive the double-headed screw rod 42 to rotate reversely, so as to realize the connection of the center shaft 51 and the cooperating bearing, and then the detection roller 5 can stably rotate for testing use, and the corresponding test result can be obtained through the deformation of the compression road surface.

[0037] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A device for compression testing of highway subgrades comprising a test bed (1) characterised in that: The test seat (1) comprises a top plate (11) and two groups of vertical plates (12), the two groups of vertical plates (12) are symmetrically installed on the lower end surface of the top plate (11), and the vertical plates (12) are vertically and fixedly connected with the top plate (11), the horizontal sliding seat (2) is fixedly installed between the two groups of vertical plates (12), the wheel frame (3) is symmetrically installed on the horizontal sliding seat (2), the wheel frame (3) is slidably connected with the horizontal sliding seat (2), and the lower end surface of the top plate (11) is provided with a driving member (4) for driving the two groups of vertical plates (12) to approach or move away from each other, and the lower end of the two groups of vertical plates (12) is further provided with a detection roller (5), and the detection roller (5) is rotatably connected with the vertical plate (12).

2. A highway subgrade compression resistance testing device according to claim 1, wherein: The two ends of the top plate (11) are provided with connecting ears (111), and the connecting ears (111) are integrally formed with the top plate (11).

3. A highway subgrade compression testing device as claimed in claim 2, wherein: The horizontal sliding seat (2) comprises an inner side plate (21) and a horizontal frame (22), the inner side plate (21) is installed at the two ends of the horizontal frame (22), and the inner side plate (21) is fixedly connected with the horizontal frame (22), and the inner side plate (21) is fixed on the inner side of the vertical plate (12) by bolts.

4. The highway subgrade compression resistance testing device of claim 3, wherein: The wheel frame (3) comprises a top seat (31) and a positioning frame plate (32), the positioning frame plate (32) is vertically installed at one end of the top seat (31), and the positioning frame plate (32) is integrally formed with the top seat (31).

5. A highway subgrade compression testing device as claimed in claim 4, wherein: The top seat (31) comprises a seat plate (311) and a threaded pipe (312), the threaded pipe (312) is installed on the upper end surface of the seat plate (311), and the two sides of the threaded pipe (312) are symmetrically provided with fixed supporting plates (313) connected with the seat plate (311).

6. A highway subgrade compression testing device as claimed in claim 5, wherein: Two matching sliding grooves (314) are symmetrically formed in the upper end surface of the seat plate (311), and the seat plate (311) is installed on the horizontal frame (22) by means of the matching sliding grooves (314).

7. A highway subgrade compression testing device as claimed in claim 6, wherein: The driving member (4) comprises a motor (41) and a double-headed screw rod (42) matched with the threaded pipe (312), the motor (41) is fixedly installed on the outer side of the vertical plate (12), the double-headed screw rod (42) is rotatably installed at the two ends in the vertical plate (12), and one end of the double-headed screw rod (42) is connected with the output end of the motor (41).

8. A highway subgrade compression testing device as claimed in claim 7, wherein: The detection roller (5) comprises a center shaft (51) and a pressure roller body (52), the pressure roller body (52) is sleeved and installed on the center shaft (51), and the pressure roller body (52) is fixedly connected with the center shaft (51), the positioning frame plate (32) is provided with an auxiliary bearing (321) for installing the center shaft (51) at a position close to the lower end, and the auxiliary bearing (321) is fixedly connected with the positioning frame plate (32).

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