A fully automatic vehicle-mounted hydraulic puller

Abstract

The present invention discloses a fully automatic vehicle-mounted hydraulic puller, belonging to a maintenance tool, which includes a vehicle frame, an electric hydraulic station, a battery pack, a control system, a pulling assembly, a steering assembly, and a lifting and traveling assembly; an intermediate connector is connected to the vehicle frame; the pulling assembly includes a main hydraulic cylinder and two force arms; the steering assembly includes a steering wheel, a steering shaft, a worm gear, a worm, and a steering motor; the lifting and traveling assembly includes a hydraulic motor winch, a frame, a square horizontal slideway, a horizontal moving hydraulic cylinder, a traveling hydraulic motor, a differential, and traveling wheels. Compared with the prior art, it has the characteristics of convenient use, time-saving and labor-saving.

Description

Technical Field

[0001] The invention relates to a maintenance tool, in particular to a fully automatic vehicle-mounted hydraulic puller suitable for disassembling a coupling. Background Art

[0002] When inspecting and repairing equipment such as reducers and motors, the couplings must be disassembled. The disassembly operation of the existing technology is generally as follows: according to the size of the coupling, a corresponding coupling disassembly tool is made, and then the coupling is pulled off the shaft diameter with a jack. Its technical defects are: ① Due to the different sizes of couplings, tooling needs to be made according to different specifications of couplings, which wastes steel and is time-consuming and labor-intensive; ② Disassembly of the tooling can easily lead to deformation and cracking of the tooling, causing damage to the tooling and equipment; ③ The tooling and jack for disassembling large couplings weigh hundreds of kilograms, which is very inconvenient to use; ④ The effective stroke of the jack is short, and the coupling cannot be disassembled at one time, which is inefficient; ⑤ The jack piston rod is larger than the inner diameter of the coupling, and the tooling needs to be extended in the middle to use round steel or steel pipes smaller than the inner diameter of the coupling as support, which can easily cause the middle support to bend and crack, causing injuries. Summary of the Invention

[0003] The technical task of the present invention is to address the deficiencies of the above existing technologies and provide a fully automatic vehicle-mounted hydraulic puller, which saves the labor and steel investment in making and disassembling coupling tools, improves labor work efficiency and maintenance costs.

[0004] The technical solution to the technical problem is as follows: a fully automatic vehicle-mounted hydraulic puller, comprising a frame and a pulling assembly, characterized in that it also comprises an electric hydraulic station, a battery pack, a control system, a steering assembly, and a lifting and traveling assembly; the frame is connected to an intermediate connector; an electric hydraulic station and a control system connected to the battery pack circuit are provided within the frame; the control system comprises a remote control signal receiving unit, and the control system is signal-connected to the electric hydraulic station;

[0005] The pulling assembly includes a main hydraulic cylinder and two lever arms; the main hydraulic cylinder is fixedly mounted on an intermediate connecting piece, the piston rod extends forward through the intermediate connecting piece, and the front end is connected to a transformable intermediate head; the rear end of each lever arm is hinged to the intermediate connecting piece; the two ends of a lever arm hydraulic cylinder are respectively hinged to the intermediate connecting piece and the middle section of the lever arm; the two ends of a claw cylinder are respectively hinged to the middle section of the lever arm and the rear end of the claw; the middle section of the claw is hinged to the front end of the lever arm through a claw pin;

[0006] The described steering assembly includes a steering wheel, a steering shaft, a worm gear, a worm and a steering motor; the rear part of the vehicle frame is fixedly connected to a steering wheel bracket, and the steering wheel is fixed to the lower end of the steering wheel bracket through a bearing and a shaft; a steering shaft is installed at the center of the upper part of the steering wheel bracket, a steering bearing is installed at the middle and lower part of the steering shaft, a worm gear is installed at the upper part, and a worm is engaged with the worm gear, and the worm is connected to the output end of the steering motor;

[0007] The described lifting and traveling assembly includes a hydraulic motor winch, a frame, a square horizontal slideway, a horizontal moving oil cylinder, a traveling hydraulic motor, a differential and traveling wheels; a pulley seat with a fixed pulley installed is welded below the central position of the cross beam of the frame, the base of the hydraulic power winch is fixed on the intermediate connecting member, after the steel wire rope of the winch passes through the upper fixed pulley and changes direction, the end of the steel wire rope is fixed to the steel wire rope fixing point on the upper part of the intermediate connecting member; vertical sliding sleeves are arranged on both sides of the intermediate connecting member, the vertical sliding sleeves are sleeved on the vertical columns of the frame and can slide up and down; the lower part of the frame is welded to the upper end of the square horizontal sliding sleeve, the square horizontal sliding sleeve is sleeved outside the square horizontal slideway, both ends of the square horizontal slideway are welded and fixed to the vehicle frame, and both ends of the horizontal moving oil cylinder are respectively connected to the vehicle frame and the square horizontal moving slideway through pin shafts; there is a hollow traveling beam below the front part of the vehicle frame, the traveling wheel half shaft penetrates through the traveling beam, and the two are connected through a support bearing, and traveling wheels are installed at both ends of the traveling wheel half shaft; the traveling wheel half shaft is connected to the sun gear of the differential through a spline, and the output shaft is connected to the differential through a speed reducer.

[0008] The connection mode of the above-mentioned middle ejector head and the piston rod is socket connection.

[0009] The front and rear parts of the above-mentioned claw are angled, and the angle is towards the front outside.

[0010] A pressure bearing is installed at the upper part of the above-mentioned steering wheel bracket.

[0011] The above-mentioned steering bearing is two upper and lower disc bearings.

[0012] The position of the above-mentioned support bearing is at both ends of the traveling beam.

[0013] The above-mentioned traveling hydraulic motor is installed and fixed on the housing of the differential.

[0014] Compared with the prior art, the present invention has the following prominent beneficial effects:

[0015] 1. The electric hydraulic station of the present invention is powered by a battery pack of a storage battery, which improves the mobility of the device;

[0016] 2. All power systems of the whole vehicle are hydraulically driven, which improves reliability. The speed and pressure of hydraulic transmission can be adjusted conveniently and it has a self-locking function.

[0017] 3. The whole machine adopts a remote control mode, getting rid of the inflexible operation caused by using control handles and buttons.

[0018] 4. The main hydraulic cylinder uses a cylinder with a 500mm stroke to ensure that 95% of the couplings can be removed at one time, improving the disassembly efficiency of the couplings and shortening the maintenance time.

[0019] 5. The intermediate replaceable punch head is fixed on the piston rod of the main hydraulic cylinder by a socket method, which is convenient and reliable. The replaceable intermediate punch head can be replaced according to different coupling specifications without changing the main structure. Therefore, it can save the personnel and steel input for manufacturing and disassembling the coupling tooling, and reduce the maintenance operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention.

[0021] Figure 2 is a schematic top view structural diagram of the present invention.

[0022] Figure 3 is a schematic right view of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention will be further described below in conjunction with the accompanying drawings of the specification and the specific embodiments. In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0024] In the following embodiments, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0025] For better description, the direction towards the coupling 16 is defined as the front, and the opposite direction as the rear. It should be understood that the orientation or positional relationships indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "end", "side", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0026] As Figures 1 to 3 shown, the present invention includes a vehicle frame 40, an electro-hydraulic station 1, a battery pack 2, a control system 3, a pulling assembly, a steering assembly, and a lifting and traveling assembly.

[0027] An intermediate connector 17 is connected to the vehicle frame 40. An electro-hydraulic station 1 and a control system 3 that are electrically connected to the battery pack 2 are provided inside the vehicle frame 40.

[0028] The electro-hydraulic station 1 of this device is powered by the battery pack 2 of the storage battery power supply, which improves the mobility of this device. The control system 3 includes a remote control signal receiving unit. The control system 3 is signal-connected to the electro-hydraulic station 1. The operator transmits a signal to the signal receiving unit of the control system 3 through the remote control, and transcodes and transmits the signal to control the hydraulic solenoid valve in the electro-hydraulic station 1 to supply oil to each hydraulic cylinder and hydraulic motor in this device, so as to realize the traveling, steering, up and down, and left and right movement of this device, improving the operation efficiency. The above power supply, remote control, and oil supply control are prior arts and will not be elaborated here.

[0029] The pulling assembly includes a main hydraulic cylinder 4 and two force arms 10.

[0030] The main hydraulic cylinder 4 is fixedly installed on the intermediate connector 17. The piston rod 5 passes through the intermediate connector 17 and extends forward. The front end is connected with a replaceable intermediate head 6, and the intermediate head 6 is used to remove the shaft 15 of the coupling 16. Specifically in this embodiment, the connection method between the intermediate head 6 and the piston rod 5 is socket connection. The intermediate head 6 can be replaced according to different specifications of the coupling 16, which is convenient and reliable.

[0031] The rear end of each lever arm 10 is hinged to the intermediate connecting member 17. One end of a lever arm hydraulic cylinder 8 is hinged to the intermediate connecting member 17 and the middle section of the lever arm 10 respectively. One end of a jaw cylinder 11 is hinged to the middle section of the lever arm 10 and the rear end of the jaw 13 respectively. The middle section of the said jaw 13 is hinged to the front end of the lever arm 10 through a jaw pin shaft 14. In this embodiment, the front and rear parts of the said jaw 13 form an angle, and the angle faces forward and outward.

[0032] Adjust the telescopic length of the lever arm hydraulic cylinder 8 according to the size of the coupling 16 to realize the opening and closing of the lever arm 10, and through the telescopic movement of the jaw cylinder 11, make the jaw 13 rotate around the jaw pin shaft 14 to realize the angle adjustment of the jaw 13 and achieve the purpose of uniform force application.

[0033] The said steering assembly includes a steering wheel 32, a steering rotating shaft 36, a worm gear 37, a worm 38 and a steering motor 39.

[0034] The rear part of the vehicle frame 40 is fixedly connected to a steering wheel bracket 33, and the said steering wheel 32 is fixed to the lower end of the steering wheel bracket 33 through bearings and a shaft.

[0035] A pressure bearing 34 is installed on the upper part of the said steering wheel bracket 33 to support part of the weight of this device.

[0036] The steering rotating shaft 36 is installed at the center of the upper part of the said steering wheel bracket 33. A steering bearing 35 is installed at the middle and lower part of the steering rotating shaft 36, and a worm gear 37 is installed at the upper part. A worm 38 is engaged with the worm gear 37. The said worm 38 is connected to the output end of the steering motor 39. After the steering motor 39 is started, the said worm 38 rotates accordingly, and then drives the worm gear 37 to drive the steering rotating shaft 36 to rotate, realizing the synchronous rotation of the steering wheel 32 and achieving the steering action. In the optimized solution, the said steering bearing 35 is two sets of upper and lower bearings.

[0037] The said lifting and traveling assembly includes a hydraulic motor hoist 18, a frame type rack 21, a square horizontal slideway 24, a horizontal moving cylinder 25, a traveling hydraulic motor 27, a differential 28 and traveling wheels 31.

[0038] Below the central position of the crossbeam of the frame type frame 21, a pulley seat with a fixed pulley 19 installed is welded. The base of the hydraulic power winch 18 is fixed on the intermediate connector 17. After the steel wire rope of the winch 18 passes through the upper fixed pulley 19 and changes direction, the end of the steel wire rope is fixed on the steel wire rope fixing point 20 on the upper part of the intermediate connector 17. Vertical sliding sleeves 22 are arranged on both sides of the intermediate connector 17. The vertical sliding sleeves 22 are sleeved on the vertical columns of the frame type frame 21 and can slide up and down. When the remote control issues an upward control signal, the control system 3 controls the upper electromagnetic valve of the hydraulic station 1 to output hydraulic oil power, driving the motor winch 18 to rotate clockwise to wind the steel wire rope. The steel wire rope passes through the upper fixed pulley 19 to make the pulling assembly move upward along the vertical column of the frame type frame 21; when the remote control issues a downward control signal, the hydraulic winch 18 rotates counterclockwise to wind the wire rope, and through the upper fixed pulley 19, the coupling pulling assembly moves downward along the vertical column of the frame type frame 21.

[0039] The lower part of the frame type frame 21 is welded to the upper end of the square horizontal sliding sleeve 23. The square horizontal sliding sleeve 23 is sleeved outside the square horizontal slideway 24. Both ends of the square horizontal slideway 24 are welded and fixed to the vehicle frame 40. Both ends of the horizontal moving oil cylinder 25 are respectively connected to the vehicle frame 40 and the square horizontal moving slideway 23 through pin shafts. When the remote control issues a left-right moving control signal, the control system 3 controls the upper electromagnetic valve of the hydraulic station 1 to output hydraulic oil power. The hydraulic oil pushes the piston in the horizontal moving oil cylinder 25, driving the piston rod of the horizontal oil cylinder 25 to stretch and push the square horizontal sliding sleeve 23, and driving the vertical sliding sleeve 22 to move left and right together, finally achieving the centering of the pulling assembly and the coupling, and achieving the purpose of precise positioning.

[0040] Below the front part of the vehicle frame 40, there is a hollow walking beam. The walking wheel half shaft 30 passes through the walking beam, and the two are connected through a support bearing 29. Specifically, the position of the support bearing 29 is at both ends of the walking beam. Walking wheels 31 are installed at both ends of the walking wheel half shaft 30.

[0041] The walking wheel half shaft 30 is connected to the sun gear of the differential 28 through a spline. The walking hydraulic motor 27 is installed and fixed on the housing of the differential 28, and the output shaft is connected to the differential 28 through a speed reducer. When the remote control issues a walking control signal, the control system 3 controls the upper electromagnetic valve of the hydraulic station 1 to output hydraulic oil power. The hydraulic oil drives the walking hydraulic motor 27 to rotate. The output shaft of the rotating hydraulic motor 27 meshes with the reducer gear, and after deceleration, it is output to the differential 28. The differential 28 transmits the driving force to the walking wheels 31 through the half shaft 30, and the forward and backward movement of the device is realized by changing the direction of the oil fluid.

[0042] It should be noted that the parts not described in detail in this embodiment are well-known technologies in the art.

[0043] As described above, the specific embodiments of the present invention are only for the purpose of describing the present invention in detail. For those skilled in the art, all obvious changes made to it without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. A fully automatic vehicle-mounted hydraulic puller, comprising a vehicle frame and a pulling assembly, characterized in that: It also includes an electro-hydraulic station, a battery pack, a control system, a steering assembly, and a lifting and traveling assembly; an intermediate connector is connected to the frame; an electro-hydraulic station and a control system circuit-connected to the battery pack are arranged inside the frame; the control system includes a remote control signal receiving unit, and the control system is signal-connected to the electro-hydraulic station; The drawing and pulling assembly includes a main hydraulic cylinder and two force arms; the main hydraulic cylinder is fixedly installed on the intermediate connector, the piston rod passes through the intermediate connector and extends forward, and a replaceable intermediate punch is connected to the front end; the rear end of each force arm is hinged to the intermediate connector; one end of a force arm hydraulic cylinder is respectively hinged to the intermediate connector and the middle section of the force arm; one end of a jaw cylinder is respectively hinged to the middle section of the force arm and the rear end of the jaw; the middle section of the jaw is hinged to the front end of the force arm through a jaw pin shaft; The steering assembly includes a steering wheel, a steering rotating shaft, a worm gear, a worm, and a steering motor; a steering wheel bracket is fixedly connected to the rear part of the frame, and the steering wheel is fixed to the lower end of the steering wheel bracket through a bearing and a shaft; a steering rotating shaft is installed at the center of the upper part of the steering wheel bracket, a steering bearing is installed at the middle and lower part of the steering rotating shaft, a worm gear is installed at the upper part, a worm is engaged with the worm gear, and the worm is connected to the output end of the steering motor; The lifting and traveling assembly includes a hydraulic motor winch, a frame, a square horizontal slideway, a horizontal moving cylinder, a traveling hydraulic motor, a differential, traveling wheels, and a traveling wheel half shaft; a pulley seat with a fixed pulley installed is welded below the central position of the cross beam of the frame, the base of the hydraulic motor winch is fixed on the intermediate connector, the steel wire rope of the hydraulic motor winch passes through the upper fixed pulley to change the direction, and then the end of the steel wire rope is fixed to the steel wire rope fixing point on the upper part of the intermediate connector; vertical sliding sleeves are arranged on both sides of the intermediate connector, the vertical sliding sleeves are sleeved on the vertical columns of the frame and can slide up and down; the lower part of the frame is welded to the upper end of the square horizontal sliding sleeve, the square horizontal sliding sleeve is sleeved outside the square horizontal slideway, both ends of the square horizontal slideway are welded and fixed to the frame, and both ends of the horizontal moving cylinder are respectively connected to the frame and the square horizontal moving slideway through pin shafts; there is a hollow traveling beam below the front part of the frame, the traveling wheel half shaft penetrates through the traveling beam, and the two are connected through a support bearing, traveling wheels are installed at both ends of the traveling wheel half shaft; the traveling wheel half shaft is connected to the sun gear of the differential through a spline, and the output shaft is connected to the differential through a speed reducer.

2. The fully automatic vehicle-mounted hydraulic puller according to claim 1, characterized in that: The connection mode between the intermediate punch and the piston rod is socket connection.

3. The fully automatic vehicle-mounted hydraulic puller according to claim 1, characterized in that: The front and rear parts of the jaw form an angle, and the angle faces forward and outward.

4. The fully automatic vehicle-mounted hydraulic puller according to claim 1, characterized in that: A pressure bearing is installed on the upper part of the steering wheel bracket.

5. The fully automatic vehicle-mounted hydraulic puller according to claim 1, wherein: The steering bearing is two sets of upper and lower bearings.

6. The fully automatic vehicle-mounted hydraulic puller according to claim 1, characterized in that: The position of the support bearing is at both ends of the traveling beam.

7. The fully automatic vehicle-mounted hydraulic puller according to claim 1, characterized in that: The traveling hydraulic motor is installed and fixed on the housing of the differential.

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