CN204205411U - Split type hauling machine - Google Patents

Abstract

Split type hauling machine, comprises by pull rope wind, draw-gear and the hydraulic power station arranged in turn before backward.The utility model adopts split-type design, and in transport and installation, this three part of pull rope wind, draw-gear and hydraulic power station can be separated, is convenient to transition transport.The maximum interruption tractive effort of the utility model can reach 280kN, and maximum tractive effort at continuous rating can reach 250kN.

Description

split tractor

technical field

The utility model belongs to a stretching device, in particular to a split-type traction machine used for wire erection in power grid engineering construction.

Background technique

The traction machine is an indispensable tool in the construction and wiring of the power grid. Its performance directly affects the quality and progress of the wiring construction. At present, among the tensioning equipment produced in China for construction stringing, the structure type of the equipment is generally single bridge trailer type, and the whole machine is transported. The production and application of the split tensioning machine has not yet started in China, which belongs to the stage of exploration and development. The existing tractor cannot be disassembled and transported after the whole machine is disassembled. During the transportation, if it encounters a rugged and narrow road, it is not convenient for the overall transportation of large trucks, and the equipment transportation will increase. The volume of the tractor of the same model is relatively large. , The weight is also large, and the specifications of the trucks in the transportation are also very high, which brings unnecessary troubles to the transportation.

As China's ^1250mm2 large cross-section conductor relies on the Ningdong-Zhejiang ±800kV UHVDC transmission line project, and the 1520mm2 ^large -section conductor relies on the Mengxi-Hubei ±800kV UHVDC transmission line project, it will definitely bring new A round of construction climax of large cross-section wire transmission lines puts forward new technical requirements for existing tensioning equipment, making it play a more important role in construction wiring. Considering that different environments and regions have different needs, only trailer-type or self-propelled stretchers can no longer meet the needs of various occasions in power grid construction and erection. In the construction and setting out, the terrain conditions are quite The split tractor will play its role in the harsh situation where the whole machine cannot be anchored and the equipment can be installed. Therefore, its improvement and innovation are imperative.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a split tractor which is convenient for installation, disassembly and transportation.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: a split tractor, including a traction rope winding device, a traction device and a hydraulic power station arranged sequentially from the back to the front;

The traction rope winding device includes a first base, a first bracket arranged on the first base, a movable adjustment frame whose front end is hinged on the first bracket, a horizontally rotating rope coil arranged at the rear end of the movable adjustment frame, and a movable The adjusting frame is used to drive the first hydraulic speed reducer of the rope reel, the first base is provided with the first lifting lug, the top of the first bracket is provided with the first horizontal guide roller and the first limiting rollers located at both ends of the first horizontal guide roller. There are two hydraulic lifting cylinders between the lower part of the first support and the movable adjustment frame; the first ground anchor ear is provided on the first support;

The traction device comprises a second base, a second support on the second base and a front traction wheel and a rear traction wheel which are rotated on the second support, and the second support is provided with a second wheel for driving the front traction wheel. The hydraulic speed reducer and the third hydraulic speed reducer for driving the rear traction wheel, the second base is provided with a tail rope clamp located under the rear side of the rear traction wheel; the second bracket is provided with a The second horizontal guide roller and the second limit guide rollers located on the left and right sides of the second horizontal guide roller; the front end of the first base and the rear end of the second base are fixedly connected by a connecting pipe; the second base is provided with a second The lifting lug, the second ground anchor lug is provided on the second bracket;

The hydraulic power station includes a third base, the third base is provided with an engine, a diesel tank, a radiator, a hydraulic oil tank, a storage battery, a tool box, a hydraulic oil pump and an instrument box, the power drive end of the engine and the power input end of the hydraulic oil pump Connection, the hydraulic oil pump is respectively connected to the hydraulic oil tank, the first hydraulic reducer, the second hydraulic reducer and the third hydraulic reducer through the high-pressure oil pipe, and the meter and hydraulic valve connected to the high-pressure oil pipe are arranged in the instrument box.

The tail rope clamp includes a support and a clamping hydraulic cylinder, the lower end of the clamping hydraulic cylinder is hinged on the second base, the upper end of the piston rod of the clamping hydraulic cylinder is provided with a clamping block, and the support is located on the second base. On the base, a connecting plate is arranged on the side of the clamping block, and a connecting rod is arranged between the connecting plate and the support, and the connecting rod is hingedly arranged with the supporting seat and the connecting plate respectively.

With the above technical scheme, the front end of the traction rope is the traction connection end, and the traction rope is wound around the second horizontal guide roller, the rear traction wheel, the front traction wheel, and the first horizontal guide roller in turn from front to back and then wound onto the rope reel. The traction power is driven by the second hydraulic reducer and the third hydraulic reducer, and the first hydraulic reducer winds the traction rope onto the rope reel.

The first ground anchor lug is welded on the first base of the traction rope winding device, which can anchor the first base, and the first lifting lug is used for lifting during loading and transportation.

The tail rope clamp of the traction device is located under the rear side of the rear traction wheel, and is used to clamp the end of the traction rope wound on the rear traction wheel, which can speed up the speed of reel replacement. There are centralized lubricating devices on the front and rear traction wheels. The second bracket is provided with a second ground anchor lug, which is symmetrical to the left and right, and can anchor the traction device. The second frame is also provided with four second lifting lugs, which are used for lifting during loading and transportation. Both the front traction wheel and the rear traction wheel are forged from alloy, with a diameter of 850mm and 10 wheel grooves, and the maximum diameter of the traction rope is 34mm. Rexroth planetary reducer is adopted, and the first-stage gear final drive drives the front traction wheel and the rear traction wheel forward and reverse.

The tail rope clamp is used to clamp the end of the traction rope connected to the rear traction wheel, which can speed up the speed of reel change. The tail rope clamp is fixed on the second support. When replacing the rope reel, the hydraulic cylinder of the clamping fluid is extended to clamp the traction rope. The rope reel can be replaced without pulling the tail rope, which reduces labor costs. The labor intensity is reduced, which improves the safety of the equipment. The tail rope clamp can be interlocked with the rotation of the rear traction wheel to prevent misoperation.

If the tail rope catch is not fully open, the rear traction wheel will not be able to turn. Conversely, if the rear traction wheel is turning, the clutch will not work. When unclamping, be sure to put the clamping hydraulic cylinder in place. Otherwise, the tow handle will not work; do not operate the tow handle while the tail rope grip is working.

The instrument box, tool box, radiator and other components of the hydraulic power station are installed on the third base. The battery box, tool box, and hydraulic oil tank are arranged side by side. The engine is on the side of them. The engine is a Cummins diesel engine with a rated power of 298kw. The whole machine provides power, the engine is connected with the hydraulic oil pump, the closed circuit hydraulic transmission system, the two-way variable volume speed regulation through the hydraulic plunger pump, the planetary deceleration, and the first-stage gear final drive drive the traction wheel forward and reverse. Next to the hydraulic oil pump is a radiator, which adopts an aluminum alloy plate-fin radiator and is forced to cool by a fan driven by a hydraulic motor. The cooling effect is good and the stable working time is long. And according to the specific environment and working temperature, the air volume of the fan can be adjusted in time and conveniently. Parts such as a diesel tank and a storage battery box are also installed on the third base. The layout of each component on the hydraulic power pack is very compact, the space location is reasonable, and the operation is comfortable. The lifting point and the anchoring point of the hydraulic power station are the same point, a total of four points, distributed around the second base.

The traction rope winding device is used with the traction device; the connecting pipe is fixedly connected by bolts, and the traction rope winding device and the traction device are respectively connected with the hydraulic power station through high-pressure oil pipes to form a hydraulic circuit system, which brings power to the whole machine and makes the whole machine Perform traction.

The engine drives the hydraulic oil pump through the transfer case and the two hydraulic variable pumps work at the same time to convert the mechanical energy of the engine into hydraulic energy. Torque and speed, the fixed motor drives the planetary reducer to rotate, and through the planetary reducer to decelerate and increase torque, the high-speed and small torque of the motor is converted into low-speed and large torque, driving the traction wheel to rotate, and realizing the active traction of the tractor. Because the hydraulic variable pump is a swash plate axial piston pump, the inclination angle and direction of the swash plate can be driven through external control, and the inclination angle of the swash plate is steplessly adjustable, thus realizing tractor traction and feeding. The action and the speed of rotation in both directions are stepless transfer.

The utility model has the following technical characteristics:

1. The utility model adopts a split design. During transportation and installation, the three parts of the traction rope winding device, traction device and hydraulic power station can be placed separately, which is convenient for transfer transportation.

2. The front traction wheel and the rear traction wheel are processed by special technology, so they are not rusty and wear-resistant.

3. The front traction wheel and the rear traction wheel can be rotated forward and reverse to realize the pulling and sending of the traction rope. The traction force can be preset and displayed directly from the pressure gauge.

4. The power drive of the utility model adopts hydraulic transmission, and the hydraulic system adopts German Rexroth hydraulic control swash plate type variable pump and inclined shaft hydraulic motor to form a closed circuit hydraulic transmission system. Advanced technology, power saving, high transmission efficiency, reliable quality, and self-overload protection function to prevent damage from hydraulic shock and acceleration of oil temperature rise.

5. The first hydraulic speed reducer, the second hydraulic speed reducer and the third hydraulic speed reducer all adopt German-owned Beijing Rexroth planetary speed reducer, which has a compact structure and reliable quality.

6. Adopt the current international advanced hydraulic servo to control the traction or delivery, realize the stepless and smooth adjustment of the traction speed, and the operation is light, flexible and reliable.

7. The friction disc type wet brake is adopted, which is integrated in the planetary reducer to avoid daily maintenance. Spring braking, hydraulic release, easy operation, fast response, can achieve no gap braking, safe and reliable. In the stopped state, it can prevent the running accident caused by the loosening of the tail rope. When the engine is suddenly turned off or an accident occurs, it has a self-braking protection function.

8. The control handle adopts positioning design, which is convenient for timely and accurate adjustment and control, easy to operate, and reduces the fatigue strength of operators. The operation panel can be opened directly from the front for easy inspection and maintenance.

9. The maximum intermittent traction force of the utility model can reach 280kN, and the maximum continuous traction force can reach 250kN.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic structural view of the traction rope winding device in Fig. 1;

Fig. 3 is a schematic structural view of the traction device in Fig. 1;

Fig. 4 is a schematic structural view of the hydraulic power station in Fig. 1;

FIG. 5 is a top view of FIG. 4 .

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the split tractor of the present invention includes a traction rope winding device 1, a traction device 2 and a hydraulic power unit 3 arranged sequentially from the back to the front .

The traction rope winding device 1 comprises a first base 4, a first bracket 5 arranged on the first base 4, a movable adjustment frame 6 whose front end is hinged on the first bracket 5, and a rope winding horizontally rotated at the rear end of the movable adjustment frame 6. The disc 7 and the first hydraulic speed reducer 8 for driving the rope reel 7 on the movable adjustment frame 6, the first lifting lug 9 is provided on the first base 4, and the first horizontal guide roller is provided on the top of the first support 5 10 and the first limit guide wheels 11 located at both ends of the first horizontal guide roller 10, two hydraulic lifting cylinders 12 are arranged between the lower part of the first support 5 and the movable adjustment frame 6; the first support 5 is provided with a first ground Anchor ear13.

Tractor 2 comprises second base 14, the second support 15 that is located on the second base 14 and rotates the front traction wheel 16 that is located on the second support 15 and the rear traction wheel 17, is provided with for driving on the second support 15. The second hydraulic reducer 18 of the front traction wheel 16 and the third hydraulic reducer 19 for driving the rear traction wheel 17, the second base 14 is provided with a tail rope gripper 20 positioned at the rear side of the rear traction wheel 17 below; The second support 15 is provided with the second horizontal guide roller 21 positioned at the top of the front side of the rear traction wheel 17 and the second limit guide roller 22 positioned at the left and right sides of the second horizontal guide roller 21; the front end of the first base 4 and the second The rear ends of the bases 14 are fixedly connected by connecting pipes 23 ; the second base 14 is provided with a second lifting ear 24 , and the second bracket 15 is provided with a second anchor ear 25 .

Hydraulic power station 3 comprises the 3rd base 26, is provided with engine 27, diesel tank 28, radiator 29, hydraulic oil tank 30, storage battery 31, tool box 32, hydraulic oil pump 33 and instrument case 34 on the 3rd base 26, the engine 27 The power drive end is connected to the power input end of the hydraulic oil pump 33, and the hydraulic oil pump 33 is respectively connected to the hydraulic oil tank 30, the first hydraulic reducer 8, the second hydraulic reducer 18 and the third hydraulic reducer 19 through high-pressure oil pipes. Be provided with the instrument and the hydraulic valve that are connected on the high-pressure oil pipe 35 in 34.

The tail rope clamp 20 comprises a bearing 36 and a clamping hydraulic cylinder 37. The lower end of the clamping hydraulic cylinder 37 is hinged on the second base 14, and the upper end of the piston rod of the clamping hydraulic cylinder 37 is provided with a clamping block 38. Seat 36 is located on the second base 14, clamping block 38 side is provided with connecting plate 39, is provided with connecting rod 40 between connecting plate 39 and bearing 36 bearing 36, and connecting rod 40 is connected with bearing 36 and bearing 36 respectively. Plate 39 is hingedly arranged.

When the utility model is used in work, the front end of the traction rope 41 is the traction connection end, and the traction rope 41 bypasses the second horizontal guide roller 21, the rear traction pulley 17, the front traction pulley 16, and the first horizontal guide roller successively from front to back. After 10 winds on the rope reel 7. The traction power is driven by the second hydraulic speed reducer 18 and the third hydraulic speed reducer 19 , and the first hydraulic speed reducer 8 winds the traction rope 41 onto the rope reel 7 .

The first ground anchor lug 13 is welded on the first base 4 of the traction rope winding device 1, which can anchor the first base 4, and the first lifting lug 9 is used for lifting during loading and transportation. Two hydraulic lifting cylinders 12 can be used to adjust the position height of the rope reel 7, that is, adjust the center of gravity of the rope reel 7, and improve the traction force to the traction rope 41.

The tail rope gripper 20 of traction device 2 is positioned at rear traction wheel 17 rear side below, is used for clamping the traction rope 41 rope ends that are wound around on rear traction wheel 17, can quicken the speed of reel replacement. Front traction wheel 16 and rear traction wheel 17 are provided with centralized lubricating device. The second bracket 15 is provided with a second ground anchor lug 25 , which is bilaterally symmetrical and can anchor the traction device 2 . The second frame is also provided with four second lifting lugs 24, which are used for lifting during loading and transportation. Front traction pulley 16 and rear traction pulley 17 are all by alloy forging, and diameter is 850mm, and wheel groove number is 10, and the maximum diameter that adapts to traction rope 41 is 34mm. Rexroth planetary reducer is adopted, and the first-stage gear final drive drives the front traction pulley 16 and the rear traction pulley 17 forward and reverse.

Tail rope gripper 20 is used for clamping the traction rope 41 cable end that is connected on the rear traction wheel 17, can quicken the speed of wire reel replacement. The tail rope gripper 20 is fixed on the second support 36. When changing the rope reel 7, the hydraulic cylinder of the gripping fluid is extended and the traction rope 41 is gripped by the gripping block 38, so that no one pulls the tail rope. Just can change rope reel, has reduced artificial labor intensity, has improved equipment safety, and tail rope gripper 20 can rotate interlock with rear traction wheel 17, prevents misoperation.

If the tail rope grip 20 is not fully open, the rear traction wheel 17 cannot rotate. Conversely, if the rear traction wheel 17 is rotating, the clamp cannot work. When unclamping, the clamping hydraulic cylinder 37 must be put in place. Otherwise, the towing handle will not work; the towing handle must not be operated under the working condition of the tail rope gripper 20 .

The instrument box 34, tool box 32, radiator 29 and other parts of the hydraulic power station 3 are installed on the third base 26. The storage battery 31 box, tool box 32, and hydraulic oil tank 30 are arranged side by side. The engine 27 is on their side, and the engine 27 adopts Cummins Diesel engine 27, with a rated power of up to 298kw, provides power for the whole machine. The engine 27 is connected to the hydraulic oil pump 33. The closed circuit hydraulic transmission system uses a hydraulic plunger pump for two-way variable volume speed regulation, planetary deceleration, and a final stage gear. The transmission drives the traction wheel forward and backward. Radiator 29 is installed next to hydraulic oil pump 33, adopts aluminum alloy plate-fin radiator 29, is forced to cool by fan driven by hydraulic motor, heat dissipation effect is good, stable working time is long. And according to the specific environment and working temperature, the air volume of the fan can be adjusted in time and conveniently. Parts such as diesel oil tank 28, storage battery 31 cases are also installed on the 3rd base 26. The layout of each component on the hydraulic power unit 3 is very compact, the spatial location is reasonable, and the operation is comfortable. The lifting point and the anchoring point of the hydraulic power station 3 are the same point, a total of four points, distributed around the second base 14 .

The traction rope winding device 1 is used with the traction device 2; the connecting pipe 23 is fixedly connected by bolts, and the traction rope winding device 1 and the traction device 2 are respectively connected with the hydraulic power station 3 through the high-pressure oil pipe 35 to form a hydraulic circuit system and provide the complete machine Bring power to make the whole machine pull and pay off.

The engine 27 drives the hydraulic oil pump 33 through the transfer case and two hydraulic variable pumps work at the same time to convert the mechanical energy of the engine 27 into hydraulic energy, and the two hydraulic variable pumps drive a hydraulic variable quantitative motor to rotate respectively to convert the hydraulic energy into mechanical energy , to generate torque and speed, the quantitative motor drives the planetary reducer to rotate, and through the planetary reducer to decelerate and increase the torque, the high-speed and small torque of the motor is converted into low-speed and high-torque, driving the traction wheel to rotate, and realizing the active traction of the tractor . Because the hydraulic variable pump is a swash plate axial piston pump, the inclination angle and direction of the swash plate can be driven through external control, and the inclination angle of the swash plate is steplessly adjustable, thus realizing tractor traction and feeding. The action and the speed of rotation in both directions are stepless transfer.

The utility model has the following technical characteristics:

1. The utility model adopts a split design. In transportation and installation, the three parts of the traction rope winding device 1, traction device 2 and hydraulic power station 3 can be placed separately, which is convenient for transition transportation.

2. The front traction pulley 16 and the rear traction pulley 17 are processed by a special process, so they are rust-free and wear-resistant.

3. Both the front traction wheel 16 and the rear traction wheel 17 can be rotated forward and reverse to realize the traction of the traction rope 41 and the delivery of the traction rope 41. The traction force can be preset and visually displayed from the pressure gauge.

4. The power drive of the utility model adopts hydraulic transmission, and the hydraulic system adopts German Rexroth hydraulic control swash plate type variable pump and inclined shaft hydraulic motor to form a closed circuit hydraulic transmission system. Advanced technology, power saving, high transmission efficiency, reliable quality, and self-overload protection function to prevent damage from hydraulic shock and acceleration of oil temperature rise.

5. The first hydraulic reducer 8, the second hydraulic reducer 18 and the third hydraulic reducer 19 all adopt German wholly-owned Beijing Rexroth planetary reducer, which is compact in structure and reliable in quality.

6. Adopt the current international advanced hydraulic servo to control the traction or delivery, realize the stepless and smooth adjustment of the traction speed, and the operation is light, flexible and reliable.

7. The friction disc type wet brake is adopted, which is integrated in the planetary reducer to avoid daily maintenance. Spring braking, hydraulic release, easy operation, fast response, can achieve no gap braking, safe and reliable. In the stopped state, it can prevent the running accident caused by the loosening of the tail rope. When the engine 27 is suddenly turned off or an accident occurs, it has a self-braking protection function.

8. The control handle adopts positioning design, which is convenient for timely and accurate adjustment and control, easy to operate, and reduces the fatigue strength of operators. The operation panel can be opened directly from the front for easy inspection and maintenance.

9. The maximum intermittent traction force of the utility model can reach 280kN, and the maximum continuous traction force can reach 250kN.

10. The utility model has a pneumatic braking method, which is fast, safe and reliable.

The above-mentioned embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model all belong to the technology of the present utility model. protection scope of the program.

Claims (2)

1. Split traction machine, characterized in that: it includes a traction rope winding device, a traction device and a hydraulic power unit arranged sequentially from back to front; The traction rope winding device includes a first base, a first bracket arranged on the first base, a movable adjustment frame whose front end is hinged on the first bracket, a horizontally rotating rope coil arranged at the rear end of the movable adjustment frame, and a movable The adjusting frame is used to drive the first hydraulic speed reducer of the rope reel, the first base is provided with the first lifting lug, the top of the first bracket is provided with the first horizontal guide roller and the first limiting rollers located at both ends of the first horizontal guide roller. There are two hydraulic lifting cylinders between the lower part of the first support and the movable adjustment frame; the first ground anchor ear is provided on the first support; The traction device comprises a second base, a second support on the second base and a front traction wheel and a rear traction wheel which are rotated on the second support, and the second support is provided with a second wheel for driving the front traction wheel. The hydraulic speed reducer and the third hydraulic speed reducer for driving the rear traction wheel, the second base is provided with a tail rope clamp located under the rear side of the rear traction wheel; the second bracket is provided with a The second horizontal guide roller and the second limit guide rollers located on the left and right sides of the second horizontal guide roller; the front end of the first base and the rear end of the second base are fixedly connected by a connecting pipe; the second base is provided with a second The lifting lug, the second ground anchor lug is provided on the second bracket; The hydraulic power station includes a third base, the third base is provided with an engine, a diesel tank, a radiator, a hydraulic oil tank, a storage battery, a tool box, a hydraulic oil pump and an instrument box, the power drive end of the engine and the power input end of the hydraulic oil pump Connection, the hydraulic oil pump is respectively connected to the hydraulic oil tank, the first hydraulic reducer, the second hydraulic reducer and the third hydraulic reducer through the high-pressure oil pipe, and the meter and hydraulic valve connected to the high-pressure oil pipe are arranged in the instrument box. 2. The split tractor according to claim 1, characterized in that: the tail rope clamp includes a support and a clamping hydraulic cylinder, the lower end of the clamping hydraulic cylinder is hinged on the second base, and the clamping The upper end of the piston rod of the hydraulic cylinder is provided with a clamping block, and the support is arranged on the second base. Seat and connecting plate hinged setting.