A remote automatic tensioning device for bidirectional tractors based on pipeline layout

Abstract

A remote automatic tensioning device for a two-way tractor based on pipeline arrangement includes a pipeline assembly, a rotating platform assembly, a rotating support assembly, a gas spring, a seat assembly, a remote automatic tensioning assembly, a support plate assembly and a transmission system assembly. The present invention can effectively and immediately adjust the length of the pipeline assembly according to the specific position of the tractor seat assembly through the arrangement of the rotating support assembly, the gas spring and the remote automatic tensioning assembly and other structures inside the device, so as to ensure that the pipeline length is always appropriate and neat when the tractor is driving forward and reverse, and reserve more space for the arrangement of the operating lever. The overall structure of the device is simple, with few parts, and a set of pipeline assemblies can simultaneously meet the two-way driving requirements of the tractor, with high safety and reliability and good practical effect.

Description

Technical Field

[0001] The invention relates to the technical field of tractors, in particular to a remote automatic tensioning device for a bidirectional tractor based on pipeline arrangement. Background Art

[0002] At present, in addition to pulling and driving various supporting machines to complete farming operations, transportation operations and fixed operations, the diversification of crops and the diversification of user needs have put forward more requirements for the functions of tractors. In order to facilitate operations and view the operating status of machines more intuitively, tractors need to have two-way driving functions at the same time, and pipeline layout and direction have become key issues that need to be solved urgently.

[0003] In recent years, in order to facilitate operations and improve operating efficiency, users have an increasing demand for two-way driving tractors. Some domestic manufacturers have also launched two-way driving tractors. One type has two sets of steering wheels, control mechanisms and pipeline assemblies. The layout of the pipelines is relatively simple, but it has disadvantages such as complex structure, high cost and poor operation convenience; the other type is a rotatable driving control structure with only one set of pipeline assemblies. There are many unreasonable aspects in the layout and direction of the pipelines of this type of tractor on the market. The wiring harness is mostly simply fixed by means of pipe clamps, cable ties or brackets. The wiring harness is not designed with a tensioning device, and the length of the wiring harness cannot be guaranteed to be always appropriate. Specifically, if the forward driving is appropriate, the reverse driving is too short; if the reverse driving is appropriate, the forward driving is too long; both the forward and reverse driving are too long, etc., which affects the layout of the control lever or is easily damaged after long-term work, thereby affecting the functional use of the entire machine. Summary of the invention

[0004] The technical purpose of the present invention is to provide a remote automatic tensioning device for a two-way tractor based on pipeline layout, which has a simple structure and is easy to operate. Without increasing the cost, a set of pipeline assemblies is used to ensure that the pipelines can be routed neatly and orderly when the tractor is driven in forward and reverse directions, so as to meet the two-way driving requirements of the tractor.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is: a remote automatic tensioning device for a two-way tractor based on pipeline layout, comprising a pipeline assembly, a rotating platform assembly, a rotating support assembly, a gas spring, a seat assembly, a remote automatic tensioning assembly, a support plate assembly and a transmission system assembly, wherein the transmission system assembly is installed on the frame of the two-way tractor, the support plate assembly is fixed on the transmission system assembly, and its upper surface is a platform-like structure, the remote automatic tensioning assembly is placed on the support plate assembly, the remote automatic tensioning assembly comprises an upper tensioning wheel, a lower tensioning wheel and a tensioning spring connecting plate arranged between the upper tensioning wheel and the lower tensioning wheel, and the upper tensioning wheel, the tensioning spring connecting plate and the lower tensioning wheel are sequentially fastened and connected up and down to jointly form an I-shaped wheel structure that can slide on the upper surface of the support plate assembly;

[0006] The rotating support assembly comprises a lower bracket fixed plate, a lower support plate, a bushing unit, an outer turntable mechanism and a pipeline fixing bracket, wherein the lower bracket fixed plate is fixed on the transmission system assembly, and a lower support plate is fixed on the upper surface of the lower bracket fixed plate, and the lower support plate comprises an upper disc and a lower disc, and the diameter of the upper disc is smaller than the diameter of the lower disc, so that the outer circumference of the lower support plate is a boss-like structure, and the bushing unit is fitted on the boss-like structure of the outer circumference of the lower support plate, and the bushing unit comprises an annular bushing lower pad and a cylindrical turntable bushing which are sequentially arranged on the boss from bottom to top, and the circular The longitudinal sections of the annular bushing lower pad and the cylindrical turntable bushing are L-shaped structures. The outer turntable mechanism is assembled on the bushing unit by interference fit. The rotating platform assembly is fixed on the upper surface of the outer turntable mechanism. The seat assembly is connected to the rotating platform assembly through a rotating shaft. A pipeline fixing bracket for fixing the pipeline assembly is also provided on one side of the outer turntable mechanism. The outer turntable mechanism can drive the rotating platform assembly, the seat assembly, the bushing unit and the pipeline fixing bracket to rotate relative to the lower support plate, thereby pulling the pipeline assembly to adjust the winding length of the pipeline assembly on the outer turntable mechanism.

[0007] The gas spring is arranged on the upper surface of the support plate assembly, one end of the gas spring is connected to the tensioning spring connecting plate of the remote automatic tensioning assembly, and the other end is fixed to the rotating support assembly, and can rotate with the outer turntable mechanism in the rotating support assembly, thereby realizing the telescopic adjustment of the piston rod in the gas spring;

[0008] The pipeline assembly is input from the front end of the tractor, surrounds the remote automatic tensioning assembly for half a circle, passes through the pipeline fixing bracket in the rotating support assembly and the wire hole set on the rotating platform assembly in turn, and is connected to the tractor component to be controlled.

[0009] Preferably, a connecting ear plate is extended outwardly from one side of the tension spring connecting plate, and a through hole for connecting with one end of the gas spring is formed on the connecting ear plate.

[0010] Preferably, the support plate assembly includes a flat support platform, on the upper surface of which a routing guide shaft for guiding the pipeline assembly is provided, on the left and right sides of the support platform are respectively provided a left baffle and a right baffle for preventing the remote automatic tensioning assembly from sliding out of the support platform, and on the lower surface of the support platform are also provided a front connecting bracket and a rear connecting bracket for fixed connection with the transmission system assembly.

[0011] Preferably, the routing guide shaft includes a cylindrical axis vertically welded on the support platform and a rotating sleeve sleeved on the outside of the cylindrical axis, and the rotating sleeve can rotate around the cylindrical axis.

[0012] Preferably, an oil cup for lubricating the gap between the bushing unit and the outer turntable mechanism is also connected to the lower support plate.

[0013] Preferably, the oil cup is threadedly connected to the lower support plate.

[0014] Preferably, the upper surface of the lower support plate is a platform-like structure, and a plurality of direction guide shafts for guiding the direction of the pipeline assembly are also arranged on the upper surface of the lower support plate.

[0015] Preferably, the inner circumferential surface of the cylindrical turntable bushing is arranged to fit the outer circumference of the upper disk.

[0016] Beneficial effects of the present invention:

[0017] The invention discloses a remote automatic tensioning device for a two-way tractor based on pipeline arrangement. Through the arrangement of the internal rotating support assembly, gas spring and remote automatic tensioning assembly and other structures of the device, the length of the pipeline assembly can be reliably adjusted according to the specific position of the tractor seat assembly in real time and effectively, so as to ensure that the pipeline length is always appropriate and neat and tidy when the tractor is driving forward and reverse, and more space is reserved for the arrangement of the operating lever. The overall structure of the device is simple, with few parts, and a set of pipeline assemblies can simultaneously meet the two-way driving requirements of the tractor. It is safe and reliable to use and has good practical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic front view of the structure of the present invention when the tractor is driven forward;

[0019] Figure 2 It is a schematic top view of the structure of the present invention when the tractor is driven forward;

[0020] Figure 3 It is a schematic front view of the structure of the present invention when the tractor is driving in reverse;

[0021] Figure 4 A schematic top view of the structure of the present invention when the tractor is driving in reverse;

[0022] Figure 5 is a cross-sectional view of a rotating support assembly;

[0023] Figure 6 It is a structural schematic diagram of a remote automatic tensioning assembly;

[0024] Figure 7 is a structural schematic diagram of a support plate assembly;

[0025] Figure 8 It is a flowchart of the wire-collecting process of the present invention;

[0026] Fig. 9 It is a flowchart of the wire laying process of the present invention;

[0027] Figure markings: 1. Pipeline assembly, 2. Rotating platform assembly, 3. Rotating support assembly, 3.1. Walking guide shaft, 3.2. Bushing lower pad, 3.3. Outer turntable mechanism, 3.4. Turntable bushing, 3.5. Lower support plate, 3.6. Oil cup, 3.7. Pipeline fixing bracket, 3.8. Lower bracket fixed plate, 4. Gas spring, 5. Seat assembly, 6. Remote automatic tensioning assembly, 6.1. Tensioning spring connecting plate, 6.2. Upper tensioning wheel, 6.3. Lower tensioning wheel, 7. Support plate assembly, 7.1. Support platform, 7.2. Walking guide shaft, 7.3. Right baffle, 7.4. Left baffle, 7.5. Rear connecting bracket, 7.6. Front connecting bracket, 8. Transmission system assembly. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] As attached Figure 1 and Figure 2The figure is a schematic structural diagram of a remote automatic tensioning device for a bidirectional tractor based on pipeline layout of the present invention when the tractor is driving in the forward direction, the device comprises: a pipeline assembly 1, a rotating platform assembly 2, a rotating support assembly 3, a gas spring 4, a seat assembly 5, a remote automatic tensioning assembly 6, a support plate assembly 7, and a transmission system assembly 8; the rotating platform assembly 2 is fixed to the rotating support assembly 3 by fasteners and cannot move, and can only realize the rotation function; the remote automatic tensioning assembly 6 is placed on the support plate assembly 7 and can move freely; the seat assembly 5 is connected to the rotating platform assembly 2 by a rotating shaft, and when driving in the forward direction, the driver sitting on the seat assembly 5 can see the front of the vehicle in front; one end of the gas spring 4 is fixed to the rotating support assembly 3, and cannot move, and can only realize the rotation function, and the other end is connected to the tensioning spring connecting plate 6.1 in the remote automatic tensioning assembly 6, and the piston rod in the gas spring 4 can be adjusted according to the pipeline assembly 1 can be freely extended or shortened in length. When driving forward (the line-releasing process has been completed), the piston rod in the gas spring 4 is extended the longest, supporting the remote automatic tensioning assembly 6 to the farthest end, and the pipeline assembly 1 is also supported to the farthest end by the automatic tensioning device 6; the rotating support assembly 3 and the support plate assembly 7 are fixed to the transmission system assembly 8 by fasteners to ensure sufficient stability; the pipeline assembly 1 input from the front end of the tractor wraps around the remote automatic tensioning assembly 6 for half a circle, passes through the pipeline fixing bracket 3.7 in the rotating support assembly 3, wraps around the outer turntable mechanism 3.3 in the rotating support assembly 3 for a quarter of a circle, passes through the wire hole on the rotating platform assembly 2, and is connected to the relevant components to be controlled. Under the guidance of the direction guide shaft 3.1 and the line guide shaft 7.2 and the fixing action of the soft shaft fixing bracket 3.7, the length of the pipeline assembly 1 is always appropriate and the direction is simple and neat.

[0030] As attached Figure 3 and Figure 4As shown, it is a structural schematic diagram of a remote automatic tensioning device for a bidirectional tractor based on pipeline arrangement of the present invention when the tractor is driving in reverse, and the device includes: a pipeline assembly 1, a rotating platform assembly 2, a rotating support assembly 3, a gas spring 4, a seat assembly 5, a remote automatic tensioning assembly 6, a support plate assembly 7, and a transmission system assembly 8; it is characterized in that: the rotating platform assembly 2 is fixed to the rotating support assembly 3 by fasteners; the remote automatic tensioning assembly 6 is placed on the support plate assembly 7 and can move freely; the seat assembly 5 is connected to the rotating platform assembly 2 by a rotating shaft, and the seat assembly 5 needs to be moved when the forward driving is converted to the reverse driving. The assembly 5 rotates around the rotating axis toward the rotating platform assembly 2 and folds upward. After folding, the seat assembly 5 and the rotating platform assembly 2 rotate together around the rotating support assembly 3 in the counterclockwise direction. After rotating 180°, the seat assembly 5 is rotated and unfolded in the direction away from the rotating platform assembly 2 to realize the reverse driving function. At this time, the driver sits on the seat assembly 5 and cannot see the front of the car in front; one end of the gas spring 4 is fixed on the rotating support assembly 3 and cannot move, and can only realize the rotation function, and one end is connected to the tensioning spring connecting plate 6.1 in the remote automatic tensioning assembly 6. The piston rod in the gas spring 4 can be adjusted according to the tube The length of the wire assembly 1 is free to extend or shorten. When driving in reverse (the wire reeling process has been completed), the length of the pipeline assembly 1 wound on the outer turntable mechanism 3.3 inside the rotating support assembly 3 increases from a quarter turn to three quarters of a turn, the length of the unwound wire harness is reduced, and the wire harness winding force is greater than the gas spring supporting force. The pipeline assembly 1 pulls the remote automatic tensioning assembly 6 toward the rotating support assembly 3, and the piston rod inside the gas spring 4 is compressed to the shortest. After the piston rod supporting force of the gas spring 4 and the tensioning force of the pipeline assembly 1 are balanced, the remote automatic tensioning assembly 6 remains stationary, and the length of the wound wire harness is compensated; the rotating support assembly 3 and the support plate assembly 7 are fixed to the transmission system assembly 8 by fasteners; the pipeline assembly 1 input from the front end of the tractor is wrapped around the remote automatic tensioning assembly 6 for one-half circle, passes through the pipeline fixing bracket 3.7 in the rotating support assembly 3, and is wrapped around the outer turntable mechanism 3.3 in the rotating support assembly 3 for three-quarters of a circle, and then passes through the wire hole on the rotating platform assembly 2 to be connected with the relevant components to be controlled. Under the guidance of the running guide shaft 3.1 and the wiring guide shaft 7.2 and the fixing action of the flexible shaft fixing bracket 3.7, the pipeline assembly 1 is ensured to always have an appropriate length and a simple and neat direction.

[0031] As attached Figure 5As shown: the rotating support assembly 3 includes: a guide shaft 3.1, a bushing lower pad 3.2, an outer turntable mechanism 3.3, a turntable bushing 3.4, a lower support plate 3.5, an oil cup 3.6, a pipeline fixing bracket 3.7, and a lower support fixed plate 3.8; the lower support plate 3.5 is fixed to the lower support fixed plate 3.8 by fasteners and cannot move or rotate; the bushing lower pad 3.2 and the turntable bushing 3.4 are sequentially assembled to the boss of the lower support plate 3.5; in the vertical and radial directions, the outer turntable mechanism 3.3 presses the bushing lower pad 3.2 and the turntable bushing 3.4 onto the boss and side wall of the lower support plate 3.5, and the outer turntable mechanism 3.3 and the bushing lower pad 3.2 and the turntable bushing 3.4 are interference fit in the radial direction, and the outer turntable mechanism The structure 3.3 drives the bushing lower pad 3.2 and the turntable bushing 3.4 to rotate relative to the lower support plate 3.5; the oil cup 3.6 is installed on the lower support plate 3.5 in a threaded manner, and by filling butter, it is ensured that the gaps between the bushing lower pad 3.2, the turntable bushing 3.4 and the lower support plate 3.5 are sufficiently lubricated to ensure that the outer turntable mechanism 3.3 has good rotation flexibility; the pipeline fixing bracket 3.7 fixes the pipeline assembly 1 between the pipeline fixing bracket 3.7 and the outer turntable mechanism 3.3 to ensure the aesthetic direction of the wiring harness; the direction guide shaft 3.1 guides the pipeline assembly 1 to the best position for connection with the relevant components to be controlled; the lower bracket fixed plate 3.8 is fixed to the transmission system assembly 8 by fasteners to play a fixing role.

[0032] As attached Figure 6As shown: the remote automatic tensioning assembly 6 includes a tensioning spring connecting plate 6.1, an upper tensioning wheel 6.2, and a lower tensioning wheel 6.3; the tensioning spring connecting plate 6.1 is installed between the upper tensioning wheel 6.2 and the lower tensioning wheel 6.3; the upper tensioning wheel 6.2, the tensioning spring connecting plate 6.1, and the lower tensioning wheel 6.3 are connected together by fasteners, and the remote automatic tensioning assembly 6 is placed on the support plate assembly 7, and the gas spring 4 is connected to the remote automatic tensioning assembly 6 through the tensioning spring connecting plate 6.1 and moves freely on the support plate assembly 7, and the length and direction of the pipeline assembly 1 are also reasonably adjusted; when driving forward, there is no need to rotate the rotating platform assembly 2, and the piston rod in the gas spring 4 is extended the longest, and the remote automatic tensioning assembly 6 and the pipeline assembly 1 are supported to the farthest end, and the piston rod of the gas spring 4 supports After the force is balanced with the tensioning force of the pipeline assembly 1, the remote automatic tensioning assembly 6 remains stationary; when driving in the reverse direction, the rotating platform assembly 2 needs to be rotated 180° counterclockwise, and the pipeline assembly 1 is wrapped around the outer turntable mechanism 3.3 from one quarter to three quarters, the length of the unwound wire harness is shortened, and the wire harness winding force is greater than the gas spring supporting force. The pipeline assembly 1 pulls the remote automatic tensioning assembly 6 toward the rotating support assembly 3, and the piston rod in the gas spring 4 is compressed from the longest to the shortest. After the piston rod supporting force of the gas spring 4 is balanced with the tensioning force of the pipeline assembly 1, the remote automatic tensioning assembly 6 remains stationary, and the length of the wound wire harness is compensated. Whether driving forward or reverse, it can ensure that the length of the wire harness of the pipeline assembly 1 is appropriate, the direction is regular, and it is not messy.

[0033] As attached Figure 7 As shown: the support plate assembly 7 includes: a support platform 7.1, a wiring guide shaft 7.2, a right baffle 7.3, a left baffle 7.4, a rear connecting bracket 7.5, and a front connecting bracket 7.6; the left baffle 7.4 and the right baffle 7.3 are fixed to the left and right sides of the support platform 7.1 by welding, so as to prevent the risk of the remote automatic tensioning assembly 6 moving out of the body; the wiring guide shaft 7.2 is welded on the support platform 7.1, and serves to guide the pipeline assembly 1, and the outer sleeve of the wiring guide shaft 7.2 can rotate around itself to reduce the resistance to the wiring harness; the rear connecting bracket 7.5 and the front connecting bracket 7.6 are fixed to the front and rear sides of the support platform 7.1 by welding, and are connected to the transmission system assembly 8 by fasteners to ensure the stability of the support plate assembly 7.

[0034] As attached Figure 8 and attached Fig. 9As shown: Wire-winding process: After rotating the seat assembly and the rotating platform assembly 180° counterclockwise around the rotating support assembly, the pipeline assembly wrapped around the outer turntable mechanism increases from 1 / 4 circle to 3 / 4 circle, and the unwound wire harness is shortened. At this time, the pipeline tensioning force is greater than the gas spring supporting force, and the gas spring piston rod is compressed to the shortest. The remote automatic tensioning assembly and the pipeline assembly are supported to the nearest end, and the length of the wound wire harness is compensated. When the gas spring piston rod supporting force and the pipeline tensioning force reach a balance, the remote automatic tensioning assembly and the pipeline assembly are positioned and remain stationary.

[0035] Wire-laying process: After rotating the seat assembly and the rotating platform assembly 180° clockwise around the rotating support assembly, the pipeline assembly wrapped around the outer turntable mechanism is reduced from 3 / 4 circle to 1 / 4 circle, and the unwound wiring harness increases. At this time, the pipeline tensioning force is less than the gas spring supporting force, and the gas spring piston rod is extended to the longest, supporting the remote automatic tensioning assembly and the pipeline assembly to the farthest end, compensating for the length of the unwound wiring harness. When the gas spring piston rod supporting force and the pipeline tensioning force reach a balance, the remote automatic tensioning assembly and the pipeline assembly are positioned and remain stationary.

[0036] The control method of the remote automatic tensioning device for a bidirectional tractor based on pipeline layout of the present invention when the tractor changes from forward driving to reverse driving (wire-winding process) is as follows: the seat assembly 5 is connected to the rotating platform assembly 2 through a rotating shaft, and the seat assembly 5 is rotated and folded toward the rotating platform assembly 2. After folding, the seat assembly 5 and the rotating platform assembly 2 rotate around the rotating support assembly 3 in a counterclockwise direction. After rotating 180°, the seat assembly 5 is rotated and unfolded in a direction away from the rotating platform assembly 2. The pipeline assembly 1 input from the front end of the tractor is increased from a quarter turn on the outer turntable mechanism 3.3 inside the rotating support assembly 3 to three quarters of a turn, and the length of the unwound wire harness is shortened. The winding force of the wire harness is greater than the supporting force of the gas spring. The remote automatic tensioning assembly 6 placed freely on the support plate assembly 7 compresses the gas spring 4 to the shortest under the tensioning action of the pipeline assembly 1 through the tensioning spring connecting plate. After the piston rod supporting force of the gas spring 4 is balanced with the tensioning force of the pipeline assembly 1, the remote automatic tensioning assembly 6 remains stationary and the length of the wound wire harness is compensated. The left baffle 7.4 and the right baffle 7.3 on the support plate assembly 7 surround the remote automatic tensioning assembly 6 to prevent the remote automatic tensioning assembly 6 from moving out of the machine body. The length of the pipeline assembly 1 is always guaranteed to be appropriate under the guiding action of the guide shaft 3.1 and the guide shaft 7.2 and the fixing action of the soft shaft fixing bracket 3.7.

[0037] The control method of the remote automatic tensioning device for a bidirectional tractor based on pipeline layout of the present invention when the tractor is transformed from reverse driving to forward driving (line release process) is as follows: the seat assembly 5 is connected to the rotating platform assembly 2 through a rotating shaft, and the seat assembly 5 is rotated and folded toward the rotating platform assembly 2. After folding, the seat assembly 5 and the rotating platform assembly 2 rotate around the rotating support assembly 3 in a clockwise direction. After rotating 180°, the seat assembly 5 is rotated and unfolded in a direction away from the rotating platform assembly 2. The pipeline assembly 1 input from the front end of the tractor is reduced from three-quarters of a circle on the outer turntable mechanism 3.3 inside the rotating support assembly 3 to one-quarter of a circle, and the length of the unwound wire harness is increased. The winding force of the wire harness is less than the supporting force of the gas spring. The remote automatic tensioning assembly 6 placed freely on the support plate assembly 7 is supported by the gas spring 4 to the farthest end through the tensioning spring connecting plate. After the piston rod supporting force of the gas spring 4 is balanced with the tensioning force of the pipeline assembly 1, the remote automatic tensioning assembly 6 remains stationary and the length of the unwound wire harness is compensated. The left baffle 7.4 and the right baffle 7.3 on the support plate assembly 7 surround the remote automatic tensioning assembly 6 to prevent the remote automatic tensioning assembly 6 from moving out of the machine body. The length of the pipeline assembly 1 is always guaranteed to be appropriate under the guiding action of the guide shaft 3.1 and the guide shaft 7.2 and the fixing action of the soft shaft fixing bracket 3.7.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the entire content of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still make formal modifications to the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. Any formal modifications, equivalent replacements, etc. made within the scope of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A remote automatic tensioning device for a bidirectional tractor based on pipeline arrangement, comprising a pipeline assembly (1), a rotating platform assembly (2), a rotating support assembly (3), a gas spring (4), a seat assembly (5), a remote automatic tensioning assembly (6), a support plate assembly (7) and a transmission system assembly (8), wherein: The transmission system assembly (8) is mounted on the frame of a bidirectional tractor, the support plate assembly (7) is fixed on the transmission system assembly (8), and its upper surface is a platform-like structure, characterized in that: the remote automatic tensioning assembly (6) is placed on the support plate assembly (7), the remote automatic tensioning assembly (6) comprises an upper tensioning wheel (6.2), a lower tensioning wheel (6.3), and a tensioning spring connecting plate (6.1) arranged between the upper tensioning wheel (6.2) and the lower tensioning wheel (6.3), and the upper tensioning wheel (6.2), the tensioning spring connecting plate (6.1) and the lower tensioning wheel (6.3) are fastened and connected in sequence up and down to jointly form an I-shaped wheel structure capable of sliding on the upper surface of the support plate assembly (7); The rotating support assembly (3) comprises a lower support plate (3.8), a lower support plate (3.5), a bushing unit, an outer turntable mechanism (3.3) and a pipeline fixing bracket (3.7), wherein the lower support plate (3.8) is fixed on the transmission system assembly (8), and a lower support plate (3.5) is fixed on the upper surface of the lower support plate (3.8), the lower support plate (3.5) comprises an upper disc and a lower disc, and the diameter of the upper disc is smaller than the diameter of the lower disc, so that the outer circumference of the lower support plate (3.5) is a boss-like structure, and the bushing unit is fitted on the boss-like structure of the outer circumference of the lower support plate (3.5), and the bushing unit comprises an annular bushing lower pad (3.2) and a cylindrical turntable bushing (3.4) which are sequentially arranged on the boss from bottom to top, and the annular bushing The longitudinal sections of the lower pad (3.2) and the cylindrical turntable bushing (3.4) are L-shaped structures; the outer turntable mechanism (3.3) is assembled on the bushing unit by interference fit; the rotating platform assembly (2) is fixed on the upper surface of the outer turntable mechanism (3.3); the seat assembly (5) is connected to the rotating platform assembly (2) via a rotating shaft; and a pipeline fixing bracket (3.7) for fixing the pipeline assembly (1) is also provided on one side of the outer turntable mechanism (3.3); the outer turntable mechanism (3.3) can drive the rotating platform assembly (2), the seat assembly (5), the bushing unit and the pipeline fixing bracket (3.7) to rotate relative to the lower support plate (3.5), thereby pulling the pipeline assembly (1) to adjust the winding length of the pipeline assembly (1) on the outer turntable mechanism (3.3); The gas spring (4) is arranged on the upper surface of the support plate assembly (7); one end of the gas spring (4) is connected to the tensioning spring connecting plate (6.1) of the remote automatic tensioning assembly (6); the other end of the gas spring (4) is fixed to the rotating support assembly (3) and can rotate with the outer turntable mechanism (3.3) in the rotating support assembly (3); and the expansion and contraction adjustment of the piston rod in the gas spring (4) is achieved through the change relationship between the relative force of the pipeline tensioning force and the supporting force of the gas spring (4); The pipeline assembly (1) is input from the front end of the tractor, surrounds the remote automatic tensioning assembly (6) by half a circle, passes through the pipeline fixing bracket (3.7) in the rotating support assembly (3) and the wire hole provided on the rotating platform assembly (2) in sequence, and is connected to the tractor component to be controlled.

2. A remote automatic tensioning device for a bidirectional tractor based on pipeline layout according to claim 1, characterized in that: A connecting ear plate is provided on one side of the tension spring connecting plate (6.1) extending outwardly, and a through hole for connecting to one end of the gas spring (4) is provided on the connecting ear plate.

3. A remote automatic tensioning device for a bidirectional tractor based on pipeline layout according to claim 1, characterized in that: The support plate assembly (7) comprises a flat support platform (7.1), on the upper surface of which a routing guide shaft (7.2) for guiding the pipeline assembly (1) is arranged, on the left and right sides of the support platform (7.1) are respectively arranged a left baffle plate (7.4) and a right baffle plate (7.3) for preventing the remote automatic tensioning assembly (6) from sliding out of the support platform (7.1), and on the lower surface of the support platform (7.1) are also arranged a front connecting bracket (7.6) and a rear connecting bracket (7.5) for fixedly connecting to the transmission system assembly (8).

4. A remote automatic tensioning device for a bidirectional tractor based on pipeline layout according to claim 3, characterized in that: The routing guide shaft (7.2) comprises a cylindrical axis vertically welded on the support platform (7.1) and a rotating sleeve sleeved on the outside of the cylindrical axis, and the rotating sleeve can rotate around the cylindrical axis.

5. A remote automatic tensioning device for a bidirectional tractor based on pipeline layout according to claim 1, characterized in that: An oil cup (3.6) for achieving clearance lubrication between the bushing unit and the outer rotating disc mechanism (3.3) is also connected to the lower supporting disc (3.5).

6. A remote automatic tensioning device for a bidirectional tractor based on pipeline layout according to claim 5, characterized in that: The oil cup (3.6) is threadedly connected to the lower support plate (3.5).

7. A remote automatic tensioning device for a bidirectional tractor based on pipeline layout according to claim 1, characterized in that: The upper surface of the lower support plate (3.5) is a platform-shaped structure, and a plurality of direction guide shafts (3.1) for guiding the direction of the pipeline assembly (1) are also arranged on the upper surface of the lower support plate (3.5).

8. The remote automatic tensioning device for a bidirectional tractor based on pipeline layout according to claim 1, characterized in that: The inner circumferential surface of the cylindrical turntable bushing (3.4) is arranged to fit the outer circumference of the upper disk.

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