Crawler tool car

Abstract

The utility model relates to a crawler tool car which comprises a car frame and a working arm, a front end device is arranged at the output end of the working arm, a clamping plate is arranged on the front end device, the working arm is provided with a connecting plate clamped and matched with the clamping plate, the clamping plate is detachably connected to the connecting plate through a quick-change assembly, and the quick-change assembly comprises two mounting columns. An inserting rod is slidably connected into each mounting column, an inserting hole matched with the inserting rod in an inserting mode is formed in the bottom end of the clamping plate, a baffle matched with the inserting rod in a sliding mode is arranged on the connecting plate, the outer surface of the inserting rod is sleeved with a spring, one end of the spring is connected to the bottom face, facing the mounting columns, of the baffle, and the other end of the spring is connected to the inserting rod. The bottom end of the inserting rod is inserted into the inserting hole, and due to the arrangement of the quick-changing assembly, a worker can replace the front-end device on the working arm only through simple lifting, and the worker does not need to demount and tighten a rusty bolt with great effort. The tool car has the effect of improving the replacement efficiency of the front end device on the tool car.

Description

Technical Field

[0001] This application relates to the technical field of agricultural machinery, and particularly relates to a tracked tool vehicle. Background Art

[0002] Agricultural machinery plays a crucial role in modern agricultural production. It covers all aspects of crop planting and livestock production, as well as the primary processing and handling of agricultural and livestock products. In traditional agricultural production, there are various common agricultural machinery. For example, a forage fork is mainly used for transporting forage; a loader can perform earthwork operations and material loading and unloading; a hole digger is used for excavating planting holes; a lawn mower is responsible for trimming grasslands, etc. These agricultural machinery play specific functions in different operating scenarios.

[0003] However, due to the diversity and complexity of agricultural production, it is often necessary to replace the front-end device of agricultural machinery according to different usage scenarios. For example, when performing different crop planting operations, it may be necessary to replace different types of excavation devices; when handling different livestock farming tasks, it may be necessary to replace suitable handling devices.

[0004] In the prior art, the front-end device of agricultural machinery and the working arm of a tracked tool vehicle generally adopt a bolt connection method. After long-term use, the connection part is prone to oxidation and rusting. Oxidation and rusting will have an adverse effect on the thread structure, resulting in loose thread connection or even inability to rotate normally. When it is necessary to replace the front-end device, workers often need to spend a lot of time and effort on disassembly and installation operations, and the replacement efficiency of the front-end device becomes low, which has obvious deficiencies. Summary of the Utility Model

[0005] In order to improve the replacement efficiency of the front-end device on the tool vehicle, this application provides a tracked tool vehicle.

[0006] The tracked tool vehicle provided by this application adopts the following technical solutions:

[0007] The cam is provided with a plurality of connecting rods, and the connecting rods are connected with the connecting rods at two ends.

[0008] By adopting the above technical solution, when the front-end device needs to be installed, the upper end of the card plate is first clamped on the top of the connecting plate, and then the worker lifts the bottom ends of the two plug-in columns to the inside of the installation column. At this time, the spring is compressed, and then the lower end of the card plate is pushed in the direction of the working arm until it is clamped on the connecting plate. Finally, the plug rod is released, the pressure on the spring disappears, and the spring reset drives the plug rod to be inserted into the plug hole, thereby realizing the installation of the front-end device; when the front-end device needs to be disassembled, the worker lifts the plug rod to disengage its lower end from the plug hole, and then pulls the lower end of the card plate to disengage the card plate from the connecting plate, and finally lifts the card plate to completely disengage the card plate from the connecting plate, thereby realizing the disassembly of the front-end device. With this arrangement, the worker only needs to lift and pull to realize the replacement of the front-end device on the working arm, and there is no need for the worker to laboriously disassemble and tighten rusty bolts, thereby improving the replacement efficiency of the front-end device on the tool cart.

[0009] Optionally, track assemblies are provided on both sides of the left and right sides of the frame, and the track assemblies include a driving pulley and a driven pulley which are rotatably connected to the front and rear ends of the frame respectively, and the outer surfaces of the driving pulley and the driven pulley are jointly covered with tracks. A first hydraulic motor and a second hydraulic motor are provided in the frame, and the first hydraulic motor is used to control the rotation of the driving pulley on the left side, and the second hydraulic motor is used to control the rotation of the driving pulley on the right side. A control assembly for controlling the rotation speed of the first hydraulic motor and the second hydraulic motor is provided in the frame.

[0010] By adopting the above technical solution, when the control system controls the rotational speed of the first hydraulic motor to be higher than that of the second hydraulic motor, the tracked tool vehicle turns to the left; when the control system controls the rotational speed of the first hydraulic motor to be lower than that of the second hydraulic motor, the tracked tool vehicle turns to the right; when the control system controls the rotational speeds of the first hydraulic motor and the second hydraulic motor to be the same, the tracked tool vehicle moves in a straight line. By precisely controlling the rotational speed difference between the first hydraulic motor and the second hydraulic motor through the control system, different-angle steering of the tracked tool vehicle is achieved, enabling the tracked tool vehicle to adapt to various complex agricultural operation environments and operation requirements.

[0011] Optionally, the control assembly includes a gasoline engine disposed inside the vehicle frame. The gasoline engine is connected to a double pump through a hydraulic pipeline. The double pump provides hydraulic power for the two hydraulic motors respectively through hydraulic pipelines. A three-way valve is disposed on the top of the vehicle frame, and the three-way valve is used to control the flow direction of the hydraulic oil in the hydraulic pipeline.

[0012] By adopting the above technical solution, the worker controls the flow direction of the hydraulic oil in the hydraulic pipeline through the three-way valve, thereby changing the flow rate and pressure of the hydraulic oil flowing into the first hydraulic motor and the second hydraulic motor, so that the first hydraulic motor and the second hydraulic motor generate different rotational speeds, realizing the steering of the tracked tool vehicle.

[0013] Optionally, a tensioning assembly is disposed on the vehicle frame. The tensioning assembly includes a cross beam. Both ends of the cross beam are respectively connected to the two driven pulleys through bearings. On opposite sides of the bottom of the vehicle frame, screws are rotatably connected. The cross beam is threadedly connected to the screws. A locking nut is threadedly connected to the screws.

[0014] By adopting the above technical solution, when the tracked belt shows a slack or taut phenomenon, the worker first loosens the locking nut on the screw, and then rotates the screw. The rotation of the screw drives the cross beam to move. The movement of the cross beam drives the two driven pulleys to move towards or away from the tracked belt, and the tracked belt gradually becomes in a tensioned state. When the tracked belt is tensioned, stop rotating the screw and re-tighten the locking nut on the screw. The setting of the tensioning assembly realizes the adjustment of the tension degree of the tracked belt, enables the tracked belt to be within a suitable tension range, and avoids the occurrence of unstable situations during the driving of the tracked tool vehicle due to the slack or tautness of the tracked belt, reducing the probability of faults occurring in the tracked tool vehicle.

[0015] Optionally, locking plates are disposed on both sides of the bottom of the vehicle frame. Fixed plates that are slidably matched with the locking plates are disposed on the cross beam. Waist-shaped holes are formed in the locking plates. Connecting bolts are disposed on the locking plates. The connecting bolts pass through the waist-shaped holes and are threadedly connected to the fixed plates.

[0016] By adopting the above technical solution, when the tensioning assembly adjusts the crawler to an appropriate tension state, the worker fixedly connects the fixed plate and the locking plate through the connecting bolts, thereby fixing the position of the cross beam, avoiding the displacement of the cross beam due to vibration during driving, and further improving the tensioning effect of the tensioning assembly.

[0017] Optionally, an equipment cavity is provided in the vehicle frame. The first hydraulic motor and the second hydraulic motor are arranged at one end of the equipment cavity away from the connecting plate. The gasoline engine is arranged above the first hydraulic motor and the second hydraulic motor. The double gear pump is communicatively arranged at one end of the gasoline engine close to the connecting plate. A hydraulic oil tank is arranged on one side of the equipment cavity close to the connecting plate. The hydraulic oil tank provides hydraulic power for the working arm. An equipment door is hinged to the top of the vehicle frame.

[0018] By adopting the above technical solution, key equipment such as hydraulic motors, gasoline engines, double gear pumps, and hydraulic oil tanks are centrally arranged in the equipment cavity within the vehicle frame, making the structure of the entire crawler tool vehicle more compact, effectively utilizing the internal space of the vehicle frame, reducing the occupied space of the equipment outside, improving the space utilization rate of the tool vehicle. At the same time, maintenance personnel can perform maintenance on key equipment in a relatively concentrated area, improving the maintenance efficiency and reducing the maintenance cost.

[0019] Optionally, a cooling fan is arranged at the top of the equipment cavity, and the equipment door is designed in a hollow shape.

[0020] By adopting the above technical solution, equipment such as hydraulic motors, gasoline engines, and double gear pumps generate a large amount of heat during operation. The cooling fan can accelerate air flow, take away heat, and keep the equipment working within an appropriate temperature range, improving the reliability and service life of the equipment. The hollow design of the cover door allows air to circulate better within the equipment cavity, and together with the cooling fan, forms a good heat dissipation channel, further enhancing the heat dissipation effect of the equipment cavity.

[0021] Optionally, a working pedal is hinged to one end of the vehicle frame away from the connecting plate.

[0022] By adopting the above technical solution, the working pedal provides a stable standing position for the operator, enabling the operator to be more comfortable and stable when operating the tool vehicle. At the same time, when the operator stands on the pedal, they can better observe the working area and perform precise operation control, improving the convenience for the worker to control the crawler tool vehicle.

[0023] Optionally, a pipe-passing plate is arranged at one end of the vehicle frame close to the connecting plate, and a plurality of through holes for external oil supply pipes to pass through are provided on the pipe-passing plate.

[0024] By adopting the above technical solution, the multiple through holes on the pipe-piercing plate can meet the tubing connection requirements of different hydraulic devices. When hydraulic devices such as a hole puncher or a lawn mower need to be installed on the front-end device, the tubing can be directly connected to the hydraulic oil tank in the device cavity through the pipe-piercing plate. Such a setting realizes the reasonable layout of the external tubing, avoids the excessive occupation of external space by the tubing, makes the structure of the tool vehicle more compact, and improves the space utilization rate.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. By setting up the quick-change assembly in the present application, the setting of the quick-change assembly enables workers to simply lift to realize the replacement of the front-end device on the working arm, without the need for workers to laboriously disassemble and tighten rusty bolts, thus improving the replacement efficiency of the front-end device on the tool vehicle;

[0027] 2. By setting up the tensioning assembly in the present application, the setting of the tensioning assembly realizes the adjustment of the tension of the crawler, keeps the crawler within a suitable tension range, avoids the occurrence of unstable situations during the driving of the crawler tool vehicle due to slack or tension of the crawler, and reduces the probability of failures of the crawler tool vehicle; BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the structural schematic diagram of the present application.

[0029] Figure 2 is the structural schematic diagram of the quick-change assembly in the embodiment of the present application.

[0030] Figure 3 is the structural schematic diagram of the crawler in the embodiment of the present application.

[0031] Figure 4 is the cross-sectional view of the device cavity in the embodiment of the present application

[0032] Figure 5 is the longitudinal sectional view of the device cavity in the embodiment of the present application

[0033] Figure 6 is the present application Figure 3 The enlarged view of part A

[0034] Figure 7 is the present application Figure 3 The enlarged view of part B

[0035] Description of reference numerals: 01, frame; 02, front-end device; 1, working arm; 101, connecting plate; 2, crawler assembly; 21, driving sprocket; 22, driven sprocket; 23, crawler; 3, clamping plate; 31, insertion hole; 4, quick-change assembly; 41, mounting post; 42, insertion rod; 43, baffle; 44, spring; 5, pipe-passing plate; 51, through hole; 6, equipment cavity; 61, first hydraulic motor; 62, second hydraulic motor; 63, hydraulic oil tank; 64, cooling fan; 7, control assembly; 71, gasoline engine; 72, double-pump; 73, three-way valve; 8, working pedal; 9, equipment door; 10, tensioning assembly; 1001, cross beam; 1002, screw rod; 1003, locking nut; 11, locking plate; 111, kidney-shaped hole; 12, fixing plate; 13, connecting bolt. Detailed implementation manners

[0036] The following further elaborates on this application Figures 1-7 in conjunction with the attached drawings.

[0037] An embodiment of this application discloses a crawler tool vehicle.

[0038] Referring to Figure 1 , a crawler tool vehicle includes a frame 01. A working arm 1 and two crawler assemblies 2 are arranged on the frame 01. The two crawler assemblies 2 are respectively arranged on both sides of the bottom end of the frame 01. The crawler assemblies 2 are used to realize the movement of the crawler tool vehicle. The working arm 1 is used to drive the devices installed on the working arm 1 to work. Both the crawler assemblies 2 and the working arm 1 are driven by hydraulic pressure to operate. A front-end device 02 is arranged at the output end of the working arm 1. In this embodiment, the front-end device 02 can be an agricultural machinery equipment such as a bucket or a forklift. A clamping plate 3 is welded to the side of the front-end device 02 facing the frame 01. The output end of the working arm 1 is detachably connected with a connecting plate 101 that is clamped and matched with the clamping plate 3. The clamping plate 3 is detachably connected to the connecting plate 101 through a quick-change assembly 4.

[0039] Before the crawler tool vehicle is put into use, the front-end device 02 to be used is installed at the output end of the working arm 1 through the quick-change assembly 4. During the driving process of the crawler tool vehicle, the working arm 1 drives the front-end device 02 to work.

[0040] Referring to Figure 1 and Figure 2The quick-change assembly 4 includes mounting columns 41 fixedly connected to both sides of the connecting plate 101, and each mounting column 41 is slidably connected with a plug rod 42, and the plug rod 42 is L-shaped. A plug hole 31 corresponding to the plug rod 42 is opened at the bottom end of the card plate 3, and the bottom end of the plug rod 42 is plugged into the plug hole 31. The opposite sides of the connecting plate 101 are fixedly connected with a baffle 43, and the baffle 43 is arranged above the mounting column 41. The plug rod 42 is slidably inserted into the baffle 43. The outer surface of the plug rod 42 is sleeved with a spring 44, one end of the spring 44 is connected to the bottom surface of the baffle 43 facing the mounting column 41, and the other end is connected to the outer surface of the plug rod 42. In the natural state of the spring 44, the bottom of the plug rod 42 is plugged into the plug hole 31, and the plug hole 31 is a waist-shaped hole.

[0041] When the front-end device 02 needs to be installed, the upper end of the card plate 3 is first clamped on the top of the connecting plate 101, and then the worker lifts the bottom ends of the two plug-in columns to the inside of the installation column 41. At this time, the spring 44 is compressed, and then the lower end of the card plate is pushed in the direction of the working arm 1 until it is clamped on the connecting plate 101. Finally, the plug rod 42 is released, and the pressure on the spring 44 disappears. The spring 44 resets and drives the plug rod 42 to be inserted into the plug hole 31, thereby realizing the installation of the front-end device 02; when the front-end device 02 needs to be disassembled, the worker lifts the plug rod 42 to disengage its lower end from the plug hole 31, and then pulls the lower end of the card plate 3 to disengage the card plate 3 from the connecting plate 101, and finally lifts the card plate 3 to completely disengage the card plate 3 from the connecting plate 101, thereby realizing the disassembly of the front-end device 02. In this way, the worker only needs to lift and pull to realize the replacement of the front-end device 02 on the working arm 1, and there is no need for the worker to laboriously disassemble and tighten rusty bolts, thereby improving the replacement efficiency of the front-end device 02 on the tool cart.

[0042] Reference Figure 3 and Figure 4 A tube-penetrating plate 5 is fixedly installed at one end of the frame 01 close to the connecting plate 101. The tube-penetrating plate 5 is provided with a plurality of through holes 51 for the external oil pipes to pass through. The plurality of through holes 51 can meet the oil pipe connection requirements of different hydraulic equipment. When hydraulic equipment such as a hole puncher or a lawn mower needs to be installed on the front-end device 02, the oil pipe is directly connected to the hydraulic oil tank 63 in the equipment cavity 6 through the tube-penetrating plate 5. Such an arrangement realizes a reasonable layout of the external oil pipe, avoids the oil pipe from occupying too much external space, makes the structure of the tool vehicle more compact, and improves space utilization.

[0043] Reference Figure 3 and Figure 4, the crawler assembly 2 includes a driving pulley 21 and a driven pulley 22 respectively rotatably connected to the front and rear ends of the vehicle frame 01. A crawler 23 is sleeved on the outer surfaces of the driving pulley 21 and the driven pulley 22. The driving pulley 21 is arranged on one side of the vehicle frame 01 away from the front-end device 02. An equipment cavity 6 is opened inside the vehicle frame 01. A first hydraulic motor 61 and a second hydraulic motor 62 are fixedly installed in the equipment cavity 6. The first hydraulic motor 61 and the second hydraulic motor 62 are respectively arranged on opposite sides of the equipment cavity 6 away from the connecting plate 101. The first hydraulic motor 61 is used to control the rotation of the driving pulley 21 on the left side, and the second hydraulic motor 62 is used to control the rotation of the driving pulley 21 on the right side. A control assembly 7 for controlling the rotation speeds of the first hydraulic motor 61 and the second hydraulic motor 62 is arranged in the equipment cavity 6.

[0044] Referring to Figure 4 and Figure 5 , the control assembly 7 includes a gasoline engine 71 fixedly installed inside the equipment cavity 6. The gasoline engine 71 is arranged above the first hydraulic motor 61 and the second hydraulic motor 62. One end of the gasoline engine 71 close to the connecting plate 101 is connected and communicated with a double-pump 72 through a hydraulic pipeline. The double-pump 72 is installed in the accommodating cavity. The double-pump 72 provides hydraulic power for the two hydraulic motors respectively through hydraulic pipelines. A three-way valve 73 for controlling the flow direction of the hydraulic oil in the hydraulic pipeline is fixedly installed on the top of the vehicle frame 01. A hydraulic oil tank 63 for providing hydraulic power for the working arm 1 is fixedly installed on one side of the equipment cavity 6 close to the connecting plate 101.

[0045] Referring to Figure 3 and Figure 5 , a working pedal 8 is hinged to one end of the vehicle frame 01 away from the connecting plate 101.

[0046] When operating the crawler 23 vehicle, the worker pulls the working pedal 8 to the unfolded state, and then stands on the surface of the working pedal 8 to operate the three-way valve 73. The worker can control the flow direction of the hydraulic oil in the hydraulic pipeline by operating the three-way valve 73. When controlling the three-way valve 73 to make the hydraulic oil flow rate in the first hydraulic motor 61 higher than that in the second hydraulic motor 62, the rotation speed of the first hydraulic motor 61 is higher than that of the second hydraulic motor 62, and the crawler tool vehicle rotates towards the left. When the three-way valve 73 controls the hydraulic oil flow rate in the first hydraulic motor 61 to be lower than that in the second hydraulic motor 62, the rotation speed of the first hydraulic motor 61 is lower than that of the second hydraulic motor 62, and the crawler tool vehicle rotates towards the right. When the three-way valve 73 controls the hydraulic oil flow rates flowing into the first hydraulic motor 61 and the second hydraulic motor 62 to be the same, and the rotation speeds of the first hydraulic motor 61 and the second hydraulic motor 62 are the same, the crawler tool vehicle moves in a straight line. By accurately controlling the rotation speed difference between the first hydraulic motor 61 and the second hydraulic motor 62 through the control system, different-angle steering of the crawler tool vehicle is achieved, so that the crawler tool vehicle can adapt to various complex agricultural operation environments and operation requirements.

[0047] Refer to Figure 4 and Figure 5 When equipment such as the first hydraulic motor 61, the second hydraulic motor 62, the gasoline engine 71, and the double pump 72 are working, a large amount of heat will be generated. Therefore, a cooling fan 64 is fixedly installed at the top of the equipment chamber 6. An equipment door 9 is hinged at the position of the equipment chamber 6 on the top of the vehicle frame 01, and the equipment door 9 is designed in a hollow shape.

[0048] When the tracked tool vehicle is running, the cooling fan 64 is started. The rotation of the cooling fan 64 speeds up the air flow rate. The air flow takes the heat accumulated in the equipment chamber 6 to the outside, keeping the equipment in the equipment chamber 6 working within a suitable temperature range, improving the reliability and service life of the equipment. The hollow design of the cover door allows air to circulate better in the equipment chamber 6. Acting together with the cooling fan 64, a good heat dissipation channel is formed, further enhancing the heat dissipation effect of the equipment chamber 6.

[0049] Refer to Figure 5 and Figure 6 After long-term use, the crawler 23 may be in a non-tight slack or taut state. Therefore, a tensioning assembly 10 is provided on the vehicle frame 01. The tensioning assembly 10 includes a cross beam 1001 arranged between two driven pulleys 22. Both ends of the cross beam 1001 are rotatably connected to the two driven pulleys 22 through bearings respectively. Screws 1002 are rotatably connected to the opposite sides of the bottom of the vehicle frame 01. The two ends of the cross bar are threadedly connected to the two screws 1002, and locking nuts 1003 are threadedly connected to the screws 1002.

[0050] Refer to Figure 6 and Figure 7 On both sides of the bottom of the vehicle frame 01, locking plates 11 are fixedly installed. A fixing plate 12 that is slidably matched with the locking plates 11 is fixedly connected to the bottom surface of the cross beam 1001. The length direction of the fixing plate 12 is parallel to the length direction of the locking plates 11. Waist-shaped holes 111 are opened on each locking plate 11. Connecting bolts 13 are provided on the locking plates 11. The connecting bolts 13 pass through the waist-shaped holes 111 and are threadedly connected to the fixing plate 12.

[0051] When the crawler 23 is loose or tight, the worker first loosens the locking nut 1003 on the screw 1002, and then rotates the screw 1002. The rotation of the screw 1002 drives the crossbeam 1001 to move. The movement of the crossbeam 1001 drives the two driven pulleys 22 to move toward or away from the crawler 23, and the crawler 23 is gradually in a tensioned state. When the crawler 23 is tensioned, the screw 1002 is stopped from being rotated, and the locking nut 1003 is re-tightened on the screw 1002. Then the worker The fixing plate 12 and the locking plate 11 are fixedly connected by connecting bolts 13 to fix the position of the cross beam 1001, thereby preventing the cross beam 1001 from being displaced due to vibration during driving. The setting of the tensioning assembly 10 can adjust the tension of the track 23, so that the track 23 is within a suitable tensioning range, thereby preventing the track 23 from being loose or tight, causing instability during the driving of the track tool vehicle, and reducing the probability of failure of the track tool vehicle.

[0052] The implementation principle of a crawler tool vehicle in the embodiment of the present application is as follows: when the front-end device 02 needs to be installed, the upper end of the clamping plate 3 is first clamped on the top of the connecting plate 101, and then the worker lifts the bottom ends of the two plug-in columns to the inside of the installation column 41. At this time, the spring 44 is compressed, and then the lower end of the clamping plate is pushed toward the direction of the working arm 1 until it is clamped on the connecting plate 101. Finally, the plug-in rod 42 is released, the pressure on the spring 44 disappears, and the spring 44 is reset to drive the plug-in rod 42 to be inserted into the plug hole 31, so that the front-end installation is realized. Installation of device 02; when it is necessary to disassemble the front-end device 02, the worker lifts the connecting rod 42 to disengage the lower end of the connecting rod 42 from the connecting hole 31, then pulls the lower end of the card plate 3 to disengage the card plate 3 from the connecting plate 101, and finally lifts the card plate 3 to completely disengage the card plate 3 from the connecting plate 101, thereby realizing the disassembly of the front-end device 02. In this way, the worker only needs to lift and replace the front-end device 02 on the working arm 1, and there is no need for the worker to laboriously disassemble and tighten the rusty bolts, thereby improving the replacement efficiency of the front-end device 02 on the tool cart.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crawler tool vehicle, comprising a vehicle frame (01), wherein a working arm (1) is arranged on the vehicle frame (01), characterized in that: The output end of the working arm (1) is provided with a front end device (02), the front end device (02) is provided with a card plate (3), the output end of the working arm (1) is provided with a connecting plate (101) that is card-engaged with the card plate (3), the card plate (3) is detachably connected to the connecting plate (101) through a quick-change assembly (4), the quick-change assembly (4) comprises two mounting posts (41), the two mounting posts (41) are arranged at two ends of the connecting plate (101) opposite to each other, each mounting post (41) is slidably connected with a plug-in rod (42), the plug-in rod (42) is slidably connected to the connecting plate (101), and the plug-in rod (42) is slidably connected to the connecting plate (101). 2) is L-shaped, the bottom end of the card plate (3) is provided with a plug hole (31) that is plugged into the plug rod (42), and the opposite ends of the connecting plate (101) are provided with baffles (43) that are slidably matched with the plug rod (42), and the outer surface of the plug rod (42) is sleeved with a spring (44), one end of the spring (44) is connected to the bottom surface of the baffle (43) facing the installation column (41), and the other end is connected to the plug rod (42), and when the spring (44) is in a natural state, the bottom end of the plug rod (42) is plugged into the plug hole (31).

2. A crawler tool vehicle according to claim 1, characterized in that: A track assembly (2) is provided on both the left and right sides of the frame (01), and the track assembly (2) includes a driving pulley (21) and a driven pulley (22) which are rotatably connected to the front and rear ends of the frame (01), respectively, and the outer surfaces of the driving pulley (21) and the driven pulley (22) are jointly sleeved with a track (23). A first hydraulic motor (61) and a second hydraulic motor (62) are provided in the frame (01), and the first hydraulic motor (61) is used to control the rotation of the driving pulley (21) located on the left side, and the second hydraulic motor (62) is used to control the rotation of the driving pulley (21) located on the right side. A control assembly (7) for controlling the rotation speed of the first hydraulic motor (61) and the second hydraulic motor (62) is provided in the frame (01).

3. A crawler tool vehicle according to claim 2, characterized in that: The control component (7) comprises a gasoline engine (71) arranged inside the vehicle frame (01); the gasoline engine (71) is connected to a double pump (72) via a hydraulic pipeline; the double pump (72) provides hydraulic power to two hydraulic motors respectively via the hydraulic pipeline; a three-way valve (73) is arranged on the top of the vehicle frame (01); the three-way valve (73) is used to control the flow direction of hydraulic oil in the hydraulic pipeline.

4. A crawler tool vehicle according to claim 2, characterized in that: The frame (01) is provided with a tensioning assembly (10), the tensioning assembly (10) comprising a crossbeam (1001), both ends of the crossbeam (1001) being connected to the two driven pulleys (22) via bearings respectively, the two opposite sides of the bottom of the frame (01) being rotatably connected with screw rods (1002), the crossbeam (1001) being threadedly connected to the screw rods (1002), and a locking nut (1003) being threadedly connected to the screw rods (1002).

5. A crawler tool vehicle according to claim 4, characterized in that: Locking plates (11) are provided on both sides of the bottom of the frame (01), a fixing plate (12) which is slidably matched with the locking plate (11) is provided on the crossbeam (1001), a waist-shaped hole (111) is provided on the locking plate (11), a connecting bolt (13) is provided on the locking plate (11), and the connecting bolt (13) passes through the waist-shaped hole (111) and is threadedly connected to the fixing plate (12).

6. A crawler tool vehicle according to claim 3, characterized in that: An equipment chamber (6) is provided in the frame (01); the first hydraulic motor (61) and the second hydraulic motor (62) are arranged at one end of the equipment chamber (6) away from the connecting plate (101); the gasoline engine (71) is arranged above the first hydraulic motor (61) and the second hydraulic motor (62); the double pump (72) is connected to and arranged at one end of the gasoline engine (71) close to the connecting plate (101); a hydraulic oil tank (63) is provided on one side of the equipment chamber (6) close to the connecting plate (101); the hydraulic oil tank (63) provides hydraulic power for the working arm (1); and an equipment door (9) is hinged on the top of the frame (01).

7. A crawler tool vehicle according to claim 6, characterized in that: A cooling fan (64) is arranged on the top of the equipment cavity (6), and the equipment door (9) is designed to be hollow.

8. The crawler tool vehicle according to claim 1, characterized in that: A working pedal (8) is hingedly connected to one end of the vehicle frame (01) away from the connecting plate (101).

9. The crawler tool vehicle according to claim 1, characterized in that: A tube-penetrating plate (5) is provided at one end of the vehicle frame (01) close to the connecting plate (101), and a plurality of through holes (51) for external oil supply pipes to penetrate are opened on the tube-penetrating plate (5).

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