A road detection vehicle test mechanism traction head

Abstract

The utility model relates to a road detection vehicle test mechanism traction head belongs to road detection equipment technical field. Technical scheme is: hydraulic motor fixed mounting is in the outside of motor interface disc, hydraulic motor output shaft links with hollow shaft through the flat key two, and the both ends of hollow shaft are installed on motor interface disc and fixed disc through bearing four and bearing one respectively, capstan is installed on hollow shaft through bearing, and electromagnetic clutch yoke fixed mounting is in the inside of motor interface disc, and electromagnetic clutch armature is installed on hollow shaft through the flat key one, and armature connecting disc fixed mounting is on capstan, and the armature connecting disc between electromagnetic clutch armature and armature is connected through electromagnetic clutch yoke and is connected with power on and power off, and one end of steel wire rope is connected with capstan fixedly and is wound on capstan, and the other end of steel wire rope is connected with test mechanism. The utility model has the advantages of reasonable structure, convenient to use, convenient maintenance and big can satisfy customer demand.

Description

Technical Field

[0001] This utility model relates to a traction head for a road inspection vehicle testing mechanism, which is used for intermittently traction of the testing mechanism by the road inspection vehicle during road surface testing, and belongs to the technical field of road inspection equipment. Background Technology

[0002] With the development of my country's economy and the demands of social progress, road performance monitoring has been carried out on a large scale, resulting in a rapid increase in the demand for structural performance testing of highways and urban roads. Road inspection vehicles are indispensable equipment for this work. Under normal driving conditions, road inspection vehicles can automatically collect, analyze, classify, and store data such as road surface images, road surface shape, smoothness, and road geometric parameters.

[0003] Currently, most road surface testing devices on the market are connected to road inspection vehicles via a traction device. These existing traction devices typically use the vehicle's engine to take power, which drives a winch on the reducer via a V-belt, pulleys, and a speed reducer. The winch then pulls the testing device forward with a steel cable. The disadvantages of this type of traction device are its complex power take-off structure and transmission chain, the need for specialized personnel to replace the V-belt, and its inconvenience in use. Utility Model Content

[0004] The purpose of this utility model is to provide a towing head for a road inspection vehicle testing mechanism, which has a simple and reasonable structure, is easy to use and maintain, and has low manufacturing cost, thus solving the above-mentioned problems in the background technology.

[0005] The technical solution of this utility model is: A road inspection vehicle testing mechanism traction head includes a hydraulic motor, a motor receiving plate, an electromagnetic clutch yoke, an electromagnetic clutch armature, an armature connecting plate, a winch, a fixed plate, a bearing 1, a hollow shaft, a bearing 2, a bearing 3, a wire rope, a cylindrical connecting plate, a bearing 4, a flat key 1, and a flat key 2. The motor receiving plate and the fixed plate are arranged in parallel and are connected and fixedly formed by the cylindrical connecting plate to form a cylindrical shell. The hydraulic motor is fixedly installed on the outer side of the motor receiving plate. The output shaft of the hydraulic motor is connected to the hollow shaft through the flat key 2. The two ends of the hollow shaft are respectively installed on the motor receiving plate and the fixed plate through bearing 4 and bearing 1. The winch is installed on the hollow shaft through bearings. The electromagnetic clutch yoke is fixedly installed on the inner side of the motor receiving plate. The electromagnetic clutch armature is installed on the hollow shaft through the flat key 1. The armature connecting plate is fixedly installed on the winch. The electromagnetic clutch armature and the armature connecting plate are connected by the energization and de-energization of the electromagnetic clutch yoke. One end of the wire rope is fixedly connected to the winch and wound on the winch, and the other end of the wire rope is connected to the testing mechanism.

[0006] Furthermore, the winch is mounted on a hollow shaft via bearings two and three.

[0007] Furthermore, the armature of the electromagnetic clutch is provided with a groove that matches the magnetic yoke of the electromagnetic clutch.

[0008] Furthermore, the cylindrical outer shell is located at the bottom of the front of the road inspection vehicle, and the testing mechanism is located below the chassis of the road inspection vehicle. Furthermore, the bottom of the testing mechanism is equipped with wheels or skids.

[0009] The positive effects of this utility model are that it has a reasonable structure, is easy to use and maintain, and can greatly meet customer needs. Attached Figure Description

[0010] Figure 1 This is a diagram showing the traction state of the traction head in an embodiment of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a diagram showing the usage state of the traction head according to an embodiment of this utility model; In the diagram: 1. Hydraulic motor; 2. Motor connecting plate; 3. Electromagnetic clutch yoke; 4. Electromagnetic clutch armature; 5. Armature connecting plate; 6. Winch; 7. Fixed plate; 8. Bearing 1; 9. Hollow shaft; 10. Bearing 2; 11. Bearing 3; 12. Wire rope; 13. Cylindrical connecting plate; 14. Bearing 4; 15. Flat key 1; 16. Flat key 2; 17. Measuring mechanism; 18. Road inspection vehicle; 19. Traction head. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments: A traction head for a road inspection vehicle testing mechanism includes a hydraulic motor 1, a motor receiving plate 2, an electromagnetic clutch yoke 3, an electromagnetic clutch armature 4, an armature connecting plate 5, a winch 6, a fixed plate 7, a bearing 1 8, a hollow shaft 9, a bearing 2 10, a bearing 3 11, a wire rope 12, a cylindrical connecting plate 13, a bearing 4 14, a flat key 15, and a flat key 2 16. The motor receiving plate 2 and the fixed plate 7 are arranged in parallel, and are connected and fixedly formed by the cylindrical connecting plate 13 to form a cylindrical outer shell. The hydraulic motor 1 is fixedly installed on the outer side of the motor receiving plate 2, and the output shaft of the hydraulic motor 1 is connected by the flat key 2. 16 is connected to the hollow shaft 9. The two ends of the hollow shaft 9 are respectively mounted on the motor receiving plate 2 and the fixed plate 7 via bearing 14 and bearing 8. The winch 6 is rotatably mounted on the hollow shaft 9. The electromagnetic clutch yoke 3 is fixedly mounted on the inner side of the motor receiving plate 2. The electromagnetic clutch armature 4 is mounted on the hollow shaft 9 via the flat key 15. The armature connecting plate 5 is fixedly mounted on the winch 6. The electromagnetic clutch armature 4 and the armature connecting plate 5 are connected by the electromagnetic clutch yoke 3 for energization and de-energization. One end of the wire rope 12 is fixedly connected to the winch 6 and wound on the winch 6. The other end of the wire rope 12 is connected to the testing mechanism 17.

[0012] See attached document Figure 2 The winch 6 is mounted on the hollow shaft 9 via bearing 2 10 and bearing 3 11. The winch 6 is connected to the outer ring of bearing 2 10 and bearing 3 11, and the hollow shaft 9 is connected to the inner ring of bearing 2 10 and bearing 3 11. When the hollow shaft 9 rotates, the winch 6 does not rotate.

[0013] See attached document Figure 2 The electromagnetic clutch armature 4 is provided with a groove that matches the electromagnetic clutch yoke 3.

[0014] See attached document Figure 3 The cylindrical outer shell is located at the bottom of the front of the road inspection vehicle 18, and the testing mechanism 17 is located under the chassis of the road inspection vehicle 18.

[0015] See attached document Figure 3 The testing mechanism 17 is a well-known mechanism in the art, used to measure the condition of road surface, and its body is equipped with a skid or wheels at the bottom.

[0016] In this embodiment, the hydraulic motor 1 is fixedly mounted on the motor receiving plate 2. The output shaft of the hydraulic motor 1 is connected to the hollow shaft 9 via a key 2 16. The hollow shaft 9 is mounted on the motor receiving plate 2 and the fixed plate 7 via bearing 4 14 and bearing 1 8 respectively. The winch 6 is mounted on the hollow shaft 9 via bearing 2 10 and bearing 3 11. The electromagnetic clutch yoke 3 is fixedly mounted on the motor receiving plate 2. The electromagnetic clutch armature 4 is mounted on the hollow shaft 9 via a key 1 15. The armature connecting plate 5 is fixedly mounted on the winch 6. The cylindrical connecting plate 13 is connected to the motor receiving plate 2 and the fixed plate 7. One end of the wire rope 12 is fixedly connected to the winch 6 and wound around the winch 6. The other end of the wire rope 12 is connected to the testing mechanism 17.

[0017] Its transmission principle: The hydraulic motor 1 rotates, and the output shaft of the hydraulic motor 1 is connected to the hollow shaft 9 by the key 16. Therefore, the hollow shaft 9 rotates. The electromagnetic clutch armature 4 is installed on the hollow shaft 9 through the key 15, so the electromagnetic clutch armature 4 also rotates. Since the winch 6 is installed on the hollow shaft 9 through the second bearing 10 and the third bearing 11, the winch 6 does not rotate at this time.

[0018] When the electromagnetic clutch yoke 3 is energized, it generates an attractive magnetic force, attracting the armature connecting disc 5 and the electromagnetic clutch armature 4 together. The armature connecting disc 5 rotates along with the electromagnetic clutch armature 4. Since the armature connecting disc 5 is fixedly connected to the winch 6, the winch 6 rotates accordingly, causing the steel wire rope 12 wound on the winch to pull the measuring mechanism 17 forward. At this time, the forward speed of the measuring mechanism 17 is greater than the driving speed of the road inspection vehicle 18. The measuring mechanism 17 moves forward relative to the road inspection vehicle 18. After the wound steel wire rope reaches the set length, the control system controls the electromagnetic clutch yoke 3 to be de-energized, the attractive magnetic force disappears, the electromagnetic clutch armature 4 separates from the armature connecting disc 5, and the road inspection vehicle 18 drives normally. At this time, the winch 6 spins idling and the steel wire rope 12 is released until the steel wire rope 12 is completely released and the measuring mechanism 17 is stationary. At this time, the electromagnetic clutch yoke 3 is energized to generate an attractive magnetic force, the winch 6 rotates, and the measuring mechanism 17 moves forward again. This process is repeated to achieve intermittent forward movement of the measuring mechanism 17. When the road inspection vehicle 18 is driving on the road, the wheels exert a certain pressure on the road surface. Under this pressure, the road surface will generate a deflection basin. The magnitude of the deflection basin value reflects the quality of the road surface structure. By intermittently moving the measuring mechanism 17 along the entire road, a series of deflection basin values ​​are collected to evaluate the overall road surface structure strength, thus achieving the purpose of measuring the road surface quality.

Claims

1. A traction head for a road inspection vehicle testing mechanism, characterized in that: The system includes a hydraulic motor (1), a motor receiving plate (2), an electromagnetic clutch yoke (3), an electromagnetic clutch armature (4), an armature connecting plate (5), a winch (6), a fixed plate (7), a bearing 1 (8), a hollow shaft (9), a bearing 2 (10), a bearing 3 (11), a wire rope (12), a cylindrical connecting plate (13), a bearing 4 (14), a flat key 1 (15), and a flat key 2 (16). The motor receiving plate (2) and the fixed plate (7) are arranged in parallel. The motor receiving plate (2) and the fixed plate (7) are connected and fixed to each other through the cylindrical connecting plate (13) to form a cylindrical shell. The hydraulic motor (1) is fixedly installed on the outer side of the motor receiving plate (2). The output shaft of the hydraulic motor (1) is connected to the hollow shaft (9) through the flat key 2 (16). The hollow shaft (9) is connected to the motor receiving plate (2) and the fixed plate (7) respectively through bearing four (14) and bearing one (8). The winch (6) is installed on the hollow shaft (9) through bearings. The electromagnetic clutch yoke (3) is fixedly installed on the inner side of the motor receiving plate (2). The electromagnetic clutch armature (4) is installed on the hollow shaft (9) through flat key one (15). The armature connecting plate (5) is fixedly installed on the winch (6). The electromagnetic clutch armature (4) and the armature connecting plate (5) are attracted and disconnected by the electromagnetic clutch yoke (3) when energized and de-energized. One end of the wire rope (12) is fixedly connected to the winch (6) and wound on the winch (6). The other end of the wire rope (12) is connected to the test mechanism (17).

2. The towing head of a road inspection vehicle testing mechanism according to claim 1, characterized in that: The winch (6) is mounted on the hollow shaft (9) via bearing two (10) and bearing three (11).

3. The towing head of a road inspection vehicle testing mechanism according to claim 1 or 2, characterized in that: The armature (4) of the electromagnetic clutch is provided with a groove that matches the magnetic yoke (3) of the electromagnetic clutch.

4. The towing head of a road inspection vehicle testing mechanism according to claim 3, characterized in that: The cylindrical outer shell is located at the bottom of the front of the road inspection vehicle (18), and the testing mechanism (17) is located under the chassis of the road inspection vehicle (18).

5. The towing head of a road inspection vehicle testing mechanism according to claim 4, characterized in that: The test mechanism (17) is equipped with a skid at the bottom.

Images