Grabbing arm supporting device and lagging jack trolley

Abstract

The utility model discloses a gripping arm support device and an arch frame trolley, which comprise an arch frame trolley, a rotary table is arranged on the arch frame trolley, a telescopic gripping arm is hinged on the rotary table, a hydraulic cylinder is hinged on the rotary table, the output end of the hydraulic cylinder is hinged with the telescopic gripping arm, a maintenance table is arranged at the end part of the telescopic gripping arm, and a hydraulic cylinder is hinged on the maintenance table. An adjusting device is arranged at the front end of the telescopic grabbing arm and connected with the maintenance platform, and a supporting device is arranged on the arch frame trolley and located under the telescopic grabbing arm. The utility model belongs to the technical field of lagging jack trolleys, and particularly relates to a grabbing arm supporting device and a lagging jack trolley which solve the problems that after a grabbing arm of a lagging jack trolley in the prior art falls flat, the grabbing arm is lack of supporting, great burden is brought to a hydraulic part, and the service life of the hydraulic part is affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of arch frame trolleys, in particular to a grab arm supporting device and an arch frame trolley. Background Art

[0002] The multifunctional tunnel arch installation trolley (referred to as the arch installation trolley) is mainly suitable for the installation of steel arches and steel mesh in tunnel construction. It can also be used for high-altitude operations such as quality inspection, installation of air and water pipes, defect repair, grouting, auxiliary charging, etc. It is a new multifunctional tunnel aerial work platform that integrates multiple aerial work platforms. It is suitable for the construction, maintenance and other work of the full section of the keel of highway, railway, municipal tunnel and mine tunnel and mine cave.

[0003] The grab arm in the prior art is generally supported and lifted by hydraulics. When not in use, the grab arm will fall flat. However, the prior art lacks support for the grab arm. The weight of the grab arm is entirely supported by hydraulics. Long-term support of the hydraulic cylinder will bring a great burden to the hydraulic parts, affecting the life of the hydraulic parts. Therefore, improvements are needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the grab arm of the arch frame trolley in the prior art lacks support for the grab arm after it falls flat, which brings a great burden to the hydraulic parts and affects the service life of the hydraulic parts.

[0005] In order to achieve the above-mentioned functions, the technical scheme adopted by the utility model is as follows: a grab arm support device and an arch frame trolley, including an arch frame trolley, a turntable is provided on the arch frame trolley, a telescopic grab arm is hinged on the turntable, a hydraulic cylinder is hinged on the turntable, the output end of the hydraulic cylinder is hingedly connected to the telescopic grab arm, a maintenance platform is provided at the end of the telescopic grab arm, an adjustment device is provided at the front end of the telescopic grab arm and is connected to the maintenance platform, a support device is provided on the arch frame trolley and is located directly below the telescopic grab arm; the support device includes an electric telescopic rod, the electric telescopic rod is arranged on the arch frame trolley, a support plate is provided at the output end of the electric telescopic rod, a support platform is provided at the upper end of the support plate, the lifting of the support platform can support the telescopic grab arm to reduce the force on the hydraulic cylinder and increase the service life of the hydraulic cylinder, and the telescopic grab arm falls flat on the support platform, which can stabilize the telescopic grab arm in the horizontal direction.

[0006] Furthermore, the adjusting device includes a fixing plate, which is fixed to the front end of the telescopic grab arm, and a motor is provided on the fixing plate. A worm is provided at the output end of the motor, and a connecting shaft is provided at the front end of the telescopic grab arm. The connecting shaft is fixedly connected to the maintenance platform, and a worm gear is provided at the end of the connecting shaft. The worm gear is meshingly connected to the worm gear. The maintenance platform can be adjusted by the adjusting device to keep it in a horizontal state.

[0007] Furthermore, a guide cylinder is provided on the arch frame trolley, a guide rod is slidably provided in the guide cylinder, and the other end of the guide rod is fixedly connected to the support plate. The guide cylinder and the guide rod can ensure the smooth lifting and lowering of the support plate.

[0008] Preferably, a protective layer is provided on the inner wall of the support platform, and the protective layer is made of rubber material.

[0009] Preferably, a limit plate is provided at the lower end of the guide rod, and the limit plate can limit the guide rod from detaching from the guide cylinder.

[0010] Preferably, the coupling shaft and the worm gear are connected in a key-type manner.

[0011] The utility model adopts the above structure to achieve the following beneficial effects:

[0012] 1. The utility model can support the telescopic grab arm in a flat state by arranging a supporting device, so as to reduce the stress on the hydraulic cylinder and extend the service life of the hydraulic cylinder.

[0013] 2. The utility model can adjust the angle of the maintenance platform by setting an adjustment device, and when the telescopic grab arm lifts the maintenance platform, the maintenance platform can be kept in a horizontal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall stereogram of a grab arm support device and an arch frame trolley of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of a supporting device of a grab arm and a supporting device of an arch frame trolley of the utility model;

[0016] Figure 3 for Figure 1 A partial enlarged view of point A in the middle.

[0017] Among them, 1. arch frame trolley, 2. turntable, 3. telescopic grab arm, 4. hydraulic cylinder, 5. maintenance platform, 6. adjustment device, 7. support device, 8. electric telescopic rod, 9. support plate, 10. support platform, 11. fixed plate, 12. motor, 13. worm, 14. connecting shaft, 15. worm gear, 16. guide cylinder, 17. guide rod, 18. protective layer, 19. limit plate. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figure 1-3 The utility model discloses a grab arm support device and an arch frame trolley, comprising an arch frame trolley 1, a turntable 2 is provided on the arch frame trolley 1, a telescopic grab arm 3 is hinged on the turntable 2, a hydraulic cylinder 4 is hinged on the turntable 2, an output end of the hydraulic cylinder 4 is hingedly connected to the telescopic grab arm 3, a maintenance platform 5 is provided at the end of the telescopic grab arm 3, an adjusting device 6 is provided at the front end of the telescopic grab arm 3 and is connected to the maintenance platform 5, a supporting device 7 is provided on the arch frame trolley 1 and is located directly below the telescopic grab arm 3;

[0021] like Figure 1-2 The supporting device 7 includes an electric telescopic rod 8, which is arranged on the arch frame trolley 1. A support plate 9 is provided at the output end of the electric telescopic rod 8. A guide cylinder 16 is provided on the arch frame trolley 1. A guide rod 17 is slidably provided in the guide cylinder 16. The other end of the guide rod 17 is fixedly connected to the support plate 9. A limit plate 19 is provided at the lower end of the guide rod 17. The limit plate 19 can limit the guide rod 17 from detaching from the guide cylinder 16. The guide cylinder 16 and the guide rod 17 can ensure the smooth lifting of the support plate 9. A support platform 10 is provided at the upper end of the support plate 9. A protective layer 18 is provided on the inner wall of the support platform 10. The protective layer 18 is made of rubber material. The lifting of the support platform 10 can support the telescopic grab arm 3 to reduce the force on the hydraulic cylinder 4 and improve the service life of the hydraulic cylinder 4. Moreover, the telescopic grab arm 3 falls flat on the support platform 10, which can stabilize the telescopic grab arm 3 in the horizontal direction.

[0022] like Figure 1 and 3 The adjusting device 6 includes a fixing plate 11, which is fixed to the front end of the telescopic grab arm 3. A motor 12 is provided on the fixing plate 11. A worm 13 is provided at the output end of the motor 12. A connecting shaft 14 is provided at the front end of the telescopic grab arm 3. The connecting shaft 14 is fixedly connected to the maintenance platform 5. A worm gear 15 is provided at the end of the connecting shaft 14. The connecting shaft 14 and the worm gear 15 are connected in a key-type manner. The worm gear 15 is meshed with the worm 13. The maintenance platform 5 can be adjusted by the adjusting device 6 to keep it in a horizontal state.

[0023] During specific use, when the arch trolley 1 is in use, the telescopic grab arm 3 can be lifted by the hydraulic cylinder 4, and the telescopic grab arm 3 can be extended and retracted. When the telescopic grab arm 3 lifts the maintenance platform 5, the angle will change. By starting the motor 12, the worm 13 engages the worm wheel 15 to rotate, and the worm wheel 15 drives the connecting shaft 14 to rotate, and the connecting shaft 14 drives the maintenance platform 5 to rotate, so that the maintenance platform 5 is in a horizontal state, which is convenient for work.

[0024] After use, the telescopic grab arm 3 will fall flat, and by starting the electric telescopic rod 8, the guide rod 17 will slide in the guide cylinder 16, and the limit plate 19 can limit the guide rod 17 from detaching from the guide cylinder 16. The support platform 10 will support the lower end of the telescopic grab arm 3, reducing the force on the hydraulic cylinder 4 and extending the service life of the hydraulic cylinder 4.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A grab arm support device and an arch trolley, comprising an arch trolley, wherein the arch trolley is provided with a turntable, characterized in that: A telescopic grab arm is hinged on the turntable, and a hydraulic cylinder is hinged on the turntable. The output end of the hydraulic cylinder is hingedly connected to the telescopic grab arm. A maintenance platform is provided at the end of the telescopic grab arm. An adjustment device is provided at the front end of the telescopic grab arm and is connected to the maintenance platform. A supporting device is provided on the arch trolley and is located directly below the telescopic grab arm.

2. A grab arm support device and an arch trolley according to claim 1, characterized in that: The supporting device comprises an electric telescopic rod, which is arranged on the arch frame trolley. A supporting plate is arranged at the output end of the electric telescopic rod, and a supporting platform is arranged at the upper end of the supporting plate.

3. A grab arm support device and arch trolley according to claim 2, characterized in that: The adjusting device comprises a fixing plate, which is fixed to the front end of the telescopic grabbing arm, a motor is arranged on the fixing plate, a worm is arranged at the output end of the motor, a connecting shaft is arranged at the front end of the telescopic grabbing arm, the connecting shaft is fixedly connected to the maintenance platform, a worm wheel is arranged at the end of the connecting shaft, and the worm wheel is meshingly connected to the worm.

4. The grab arm support device and the arch trolley according to claim 3, characterized in that: The arch trolley is provided with a guide cylinder, a guide rod is slidably provided in the guide cylinder, and the other end of the guide rod is fixedly connected to the support plate.

5. The grab arm support device and the arch trolley according to claim 4, characterized in that: A protective layer is provided on the inner wall of the support platform, and the protective layer is made of rubber material.

6. The grab arm support device and the arch trolley according to claim 5, characterized in that: A limiting plate is provided at the lower end of the guide rod.

7. A grab arm support device and an arch trolley according to claim 6, characterized in that: The coupling shaft and the worm gear are connected in a key-type manner.

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