Ditching device for solar photovoltaic power generation construction

Abstract

The invention discloses a ditching device for solar photovoltaic power generation construction, and relates to the field of ditching equipment. The supporting base is installed at the bottom end of the cutter head support, the rolling wheels are installed at the bottom end of the supporting base, auxiliary supporting can be conducted on the cutter head support through cooperation of the supporting base and the rolling wheels, and therefore energy consumption generated when the lifting adjusting assembly drives the cutter head to be subjected to lifting adjustment and positioning can be reduced, and meanwhile the stability of the support and the cutter head can be improved; vibration and lateral force in the ditching operation are counteracted, equipment shaking is reduced, and collapse or deflection of the ditch wall is avoided, so that the ditching effect is improved; when the lifting adjusting assembly adjusts the mounting height of the support, the telescopic adjusting assembly can adjust the mounting height of the supporting seat, so that the rollers at the bottom end of the supporting seat are always supported on the ground to assist in supporting the cutter head support, and due to the design of the rollers, the ditching equipment can be supported and moved through the rollers in a non-operation scene; and the equipment is more convenient to move and transport.

Description

Technical Field

[0001] The invention belongs to the field of trench-digging equipment. Specifically, it particularly relates to a trench-digging device for solar photovoltaic power generation construction. Background Art

[0002] During the construction of solar photovoltaic power generation, it is necessary to dig trenches in advance for burying cables underground, so a trench-digging machine is required. Trench-digging machines include disk trench-digging machines and chain trench-digging machines. Among them, a disk trench-digging machine is an agricultural and engineering machine with a rotating milling and throwing disk as the core working component, and is widely used in scenarios such as farmland, roads, pipelines, and cable laying.

[0003] Chinese Patent CN101982619B discloses a continuous cable and pipeline trench-digging machine. However, the above-mentioned trench-digging machine only drives the trench-opening tooth disk to move up and down through a hydraulic system for adjustment. And the trench-opening tooth disk is mostly made of high-density metal materials, and its gravity is relatively large. Driving the trench-opening tooth disk to move up and down and position through a hydraulic system will not only increase the energy consumption of the equipment, but also the gravity of the trench-opening tooth disk will affect the stability of the equipment, thus affecting the trench-digging quality. Summary of the Invention

[0004] Aiming at the problems in the related art, the invention provides a trench-digging device for solar photovoltaic power generation construction to overcome the above-mentioned technical problems existing in the prior related art.

[0005] To solve the above technical problems, the invention is realized through the following technical solutions: The invention provides a trench-digging device for solar photovoltaic power generation construction, including a trench-digging mechanism. The trench-digging mechanism includes a bracket, a cutter head, a lifting adjustment component, and a rotation driving component. The cutter head is rotatably installed on the bracket. The lifting adjustment component can adjust the installation height of the bracket to adjust the trench-digging depth of the cutter head. The rotation driving component can drive the cutter head to rotate and dig trenches when the bracket moves. An auxiliary support mechanism is further installed on the bracket. The auxiliary support mechanism includes a support seat and a telescopic adjustment component. The support seat is installed below the bracket through the lifting adjustment component. A roller is rotatably installed at the bottom end of the support seat. The telescopic adjustment component can, when the lifting adjustment component adjusts the installation height of the bracket, telescopically adjust the installation height of the support seat so that the roller at the bottom end of the support seat always supports on the ground.

[0006] Furthermore, it further includes a tractor. The lifting adjustment component includes a hydraulic telescopic shaft and a connecting frame. One end of the connecting frame is connected and installed on the tractor. The lower end of the bracket is fixedly installed with a connecting shaft, and the connecting shaft is rotatably connected to the outer end of the connecting frame. One end of the hydraulic telescopic shaft is rotatably connected to the tractor, and the other end of the hydraulic telescopic shaft is rotatably connected to the top end of the bracket.

[0007] Further, the rotation driving assembly includes a driving shaft and a transmission shaft. The driving shaft is rotatably installed on the tractor and is in transmission connection with the wheel shaft of the tractor through two meshing bevel gears. An extensible transmission rod is rotatably installed at the outer end of the driving shaft. The transmission shaft is rotatably installed on the bracket, and the inner end of the transmission shaft is in transmission connection with the cutter head through two meshing bevel gears. The outer end of the transmission shaft is rotatably connected to one end of the extensible transmission rod.

[0008] Further, the extensible transmission rod includes a main rod and a telescopic rod. One end of the main rod is rotatably connected to the outer end of the driving shaft. One end of the telescopic rod is rotatably connected to the outer end of the transmission shaft. The main rod and the telescopic rod are slidably inserted into each other. A spline is fixedly installed on the outer circle of the telescopic rod, and a limiting groove for slidably engaging with the spline is formed in the inner circle of the main rod.

[0009] Further, the telescopic adjustment assembly includes a threaded column and a transmission unit. The threaded column is rotatably installed at the lower end of the bracket through a bearing. The support seat is slidably installed on the outer side of the lower end of the bracket through a slide rail, and a threaded hole for threaded transmission connection with the threaded column is provided at the top of the support seat. The top of the threaded column is in transmission connection with the connecting shaft through the transmission unit, so that when the bracket rotates to adjust the installation height, the threaded column can be driven to rotate through the cooperation of the connecting shaft and the transmission unit, and the support seat can be driven to perform lifting adjustment through threaded transmission.

[0010] Further, the transmission unit includes a first-stage transmission bevel gear, a transmission rod, and a second-stage driven bevel gear. The first-stage transmission bevel gear is fixedly installed on the connecting shaft. The transmission rod is rotatably installed at the lower end of the bracket. A first-stage driven bevel gear meshing with the first-stage transmission bevel gear is fixedly installed at one end of the transmission rod. A second-stage transmission bevel gear is fixedly installed at the other end of the transmission rod. The second-stage driven bevel gear is fixedly installed at the top of the threaded column and is in meshing transmission connection with the second-stage transmission bevel gear.

[0011] Further, a shock-absorbing shaft is slidably inserted at the bottom end of the support seat. A bottom plate is fixedly installed at the bottom end of the shock-absorbing shaft. The roller is rotatably installed at the bottom end of the bottom plate. A shock-absorbing spring is sleeved on the outer circle of the shock-absorbing shaft, and the shock-absorbing spring abuts between the support seat and the bottom plate.

[0012] Further, a hydraulic cavity is formed inside the support seat. The top end of the shock-absorbing shaft extends into the hydraulic cavity and is fixedly installed with a hydraulic plug. The hydraulic plug divides the hydraulic cavity into an upper hydraulic cavity and a lower hydraulic cavity. A plurality of diversion holes distributed in a circular pattern are formed in the hydraulic plug, and both ends of the diversion holes are communicated with the upper hydraulic cavity and the lower hydraulic cavity respectively.

[0013] Further, the bottom end of the threaded post extends into the upper hydraulic cavity and is fixedly installed with a sealing plate that is slidably and sealingly connected to the upper hydraulic cavity. The bottom end of the sealing plate is fixedly installed with a plurality of flow regulating rods corresponding to the diversion holes one by one.

[0014] Further, the diversion hole is a frustum-shaped hole structure with a gradually increasing diameter from bottom to top, and the flow regulating rod is a conical rod structure with a gradually increasing diameter from bottom to top.

[0015] The present invention has the following beneficial effects: 1. In the present invention, a support base is installed at the bottom end of the cutter head support, and rollers are installed at the bottom end of the support base. The support base and the rollers can cooperate to assist in supporting the cutter head support, thereby reducing the energy consumption during the lifting and positioning adjustment of the cutter head by the lifting adjustment assembly. At the same time, the stability of the support and the cutter head can be improved, the vibration and lateral force during the ditching operation can be offset, the equipment shaking can be reduced, the collapse or deviation of the trench wall can be avoided, so as to improve the ditching effect. And when the lifting adjustment assembly adjusts the installation height of the support, the telescopic adjustment assembly can adjust the installation height of the support base, so that the rollers at the bottom end of the support base always support on the ground to assist in supporting the cutter head support. Moreover, the design of the rollers enables the trenching equipment to move through the support of the rollers in non-operation scenarios (such as cement roads), solving the problem that traditional trenching equipment cannot move smoothly on hard roads and making the movement and transportation of the equipment more convenient.

[0016] 2. In the present invention, a damping and shock-absorbing structure is arranged in the support base, which can buffer and shock-absorb the cutter head support through the damping and shock-absorbing structure when the equipment moves or ditches. It can not only further improve the stability of the cutter head support, thereby improving the ditching effect, but also prevent the cutter head support from colliding rigidly with the tractor and the ground when the tractor shakes, resulting in damage to the cutter head support, and can improve the service life of the equipment.

[0017] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is one of the three-dimensional structure diagrams of the trenching device of the present invention; Figure 2 It is the second three-dimensional structure diagram of the trenching device of the present invention; Figure 3 For the present invention Figure 2Schematic diagram of the partial enlarged structure at location A; Figure 4 This is the third three-dimensional structure diagram of the trench digging device of the present invention; Figure 5 This is the present invention Figure 4 Schematic diagram of the partial enlarged structure at location B; Figure 6 This is the present invention Figure 4 Schematic diagram of the partial enlarged structure at location C; Figure 7 This is the fourth three-dimensional structure diagram of the trench digging device of the present invention; Figure 8 This is the present invention Figure 7 Schematic diagram of the partial enlarged structure at location D.

[0020] In the figure: 1, tractor; 2, trench digging mechanism; 21, bracket; 22, cutter head; 23, drive shaft; 24, hydraulic telescopic shaft; 25, main rod; 26, spline; 27, telescopic rod; 28, transmission shaft; 29, connecting frame; 210, connecting shaft; 3, auxiliary support mechanism; 31, support seat; 32, roller; 33, first-stage driving bevel gear; 34, first-stage driven bevel gear; 35, transmission rod; 36, second-stage driving bevel gear; 37, second-stage driven bevel gear; 38, threaded column; 39, shock-absorbing shaft; 310, shock-absorbing spring; 311, bottom plate; 312, hydraulic plug; 313, upper hydraulic cavity; 314, lower hydraulic cavity; 315, diversion hole; 316, flow regulating rod; 317, sealing plate. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the invention.

[0022] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc. indicating orientation or positional relationships are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the invention. Embodiment 1

[0023] Please refer to Figure 1 、 Figure 4As shown in the figure, the present invention is a trench digging device for solar photovoltaic power generation construction, including a trench digging mechanism 2. The trench digging mechanism 2 includes a bracket 21, a cutter head 22, a lifting adjustment component and a rotation drive component. The cutter head 22 is rotatably installed on the bracket 21. The lifting adjustment component can adjust the installation height of the bracket 21 to adjust the trench digging depth of the cutter head 22. The rotation drive component can drive the cutter head 22 to rotate and dig trenches when the bracket 21 moves forward; An auxiliary support mechanism 3 is also installed on the bracket 21. The auxiliary support mechanism 3 includes a support base 31 and a telescopic adjustment component. The support base 31 is installed below the bracket 21 through the lifting adjustment component. A roller 32 is rotatably installed at the bottom end of the support base 31. The telescopic adjustment component can telescopically adjust the installation height of the support base 31 when the lifting adjustment component adjusts the installation height of the bracket 21, so that the roller 32 at the bottom end of the support base 31 always supports on the ground; When the trench digging device is in use, during the movement of the trench digging mechanism 2, the roller 32 rolls and supports on the ground, and cooperates with the support base 31 to assist in supporting the trench digging mechanism 2. When moving to the trench digging position for photovoltaic construction, the cutter head 22 is driven to rotate by the rotation drive component. At the same time, the installation height of the bracket 21 can be adjusted by the lifting adjustment component, so that the bracket 21 drives the cutter head 22 to move downward, causing the bottom end of the cutter head 22 to gradually extend below the ground, rotating and cutting trenches. At the same time, the telescopic adjustment component can telescopically adjust the installation height of the support base 31, so that the roller 32 at the bottom end of the support base 31 always supports on the ground to assist in supporting the bracket 21 and the cutter head 22; The bracket 21 is assisted in supporting by the cooperation of the support base 31 and the roller 32, so that the energy consumption during the lifting adjustment and positioning of the bracket 21 and the cutter head 22 driven by the lifting adjustment component can be reduced. At the same time, the stability of the bracket 21 and the cutter head 22 can be improved, the vibration and lateral force during the trench opening operation can be offset, the equipment shaking can be reduced, the collapse or deviation of the trench wall can be avoided, and the trench opening effect can be improved; and the design of the roller 32 enables the trench digging equipment to be supported and moved through the roller 32 in a non-operating scenario (such as a cement road surface), solving the problem that traditional trench digging equipment cannot move smoothly on a hard road surface, making the movement and transportation of the equipment more convenient. Embodiment Two

[0024] Please refer to Figure 2 、 Figure 3 As shown in the figure, the difference between this embodiment and the above embodiment is that it further includes a tractor 1. The lifting adjustment component includes a hydraulic telescopic shaft 24 and a connecting frame 29. One end of the connecting frame 29 is connected and installed on the tractor 1. The lower end of the bracket 21 is fixedly installed with a connecting shaft 210. The connecting shaft 210 is rotatably connected to the outer end of the connecting frame 29. One end of the hydraulic telescopic shaft 24 is rotatably connected to the tractor 1, and the other end of the hydraulic telescopic shaft 24 is rotatably connected to the top end of the bracket 21; Among them, when the trenching device is moved and transported, the hydraulic telescopic shaft 24 is in a retracted state. At this time, the hydraulic telescopic shaft 24 stretches and moves the upper end of the bracket 21 toward the tractor 1, so that the bracket 21 rotates and lifts upward with the connecting frame 29 and the connecting shaft 210 as a fulcrum, thereby driving the cutter head 22 on the bracket 21 to move upward, so that the cutter head 22 is located above the ground, thereby preventing the cutter head 22 from abutting and colliding with the ground when the trenching device is moved and transported; and when trenching, the hydraulic telescopic shaft 24 extends outward, so that the bracket 21 rotates and moves downward with the connecting frame 29 and the connecting shaft 210 as a fulcrum, thereby driving the cutter head 22 on the bracket 21 to move downward, so that the lower end of the cutter head 22 is gradually inserted into the ground, and rotary trenching is performed, and by adjusting the length of the hydraulic telescopic shaft 24, the height of the cutter head 22 can be adjusted accordingly, so that trenches of different depths can be excavated as needed. Embodiment 3

[0025] See also Figure 2 , Figure 3 As shown, the difference between this embodiment and the above embodiment is that the rotary drive assembly includes a drive shaft 23 and a transmission shaft 28, the drive shaft 23 is rotatably mounted on the tractor 1, and is transmission-connected to the wheel shaft of the tractor 1 through two meshing bevel gears (one of which is fixedly connected to the drive shaft 23, and the other is fixedly connected to the wheel shaft), a telescopic transmission rod is rotatably mounted on the outer end of the drive shaft 23, the transmission shaft 28 is rotatably mounted on the bracket 21, and the inner end of the transmission shaft 28 is transmission-connected to the cutter disc 22 through two meshing bevel gears (one of which is fixedly connected to the drive shaft 28, and the other is fixedly connected to the cutter disc 22), and the outer end of the transmission shaft 28 is rotationally connected to one end of the telescopic transmission rod; When the tractor 1 moves forward, the wheel shaft is driven to rotate synchronously by the moving wheels. At this time, the wheel shaft drives the bevel gear transmission to drive the drive shaft 23 to rotate. When the drive shaft 23 rotates, the transmission shaft 28 is driven to rotate through the transmission of the telescopic transmission rod. Then, the transmission shaft 28 drives the cutter head 22 to rotate through the bevel gear transmission, so that the cutter head 22 can rotate synchronously to dig trenches when the tractor 1 moves forward. Among them, the transmission is carried out between the driving shaft 23 and the transmission shaft 28 through a telescopic transmission rod, and both ends of the telescopic transmission rod are rotatably connected to the driving shaft 23 and the transmission shaft 28, so that when the bracket 21 is rotated to adjust the height, the driving shaft 23 and the transmission shaft 28 can always maintain a transmission connection, and the use of the telescopic transmission rod will not affect the lifting and lowering adjustment process of the bracket 21.

[0026] Furthermore, the drive shaft 23 is configured to be divided into two sections, and the two sections of the drive shaft 23 are respectively connected to the wheel shaft and the telescopic transmission rod in a transmission manner, and the two sections of the drive shaft 23 are connected by a clutch. When the trenching device is moving and transporting (not digging trenches), the clutch is disconnected, so that the cutter disc 22 will not be driven to rotate during the forward movement of the tractor 1, which not only reduces the energy consumption of the device, but also prevents the rotating cutter disc 22 from causing damage to personnel or objects during the movement and transportation of the device, thereby improving the safety of the device during movement and transportation. When digging trenches, the two sections of the drive shaft 23 are fixedly connected by the clutch, that is, the cutter disc 22 can be driven to rotate and dig trenches when the tractor 1 moves forward.

[0027] Furthermore, the telescopic transmission rod includes a main rod 25 and a telescopic rod 27, one end of the main rod 25 is rotatably connected to the outer end of the drive shaft 23, and one end of the telescopic rod 27 is rotatably connected to the outer end of the transmission shaft 28. The main rod 25 and the telescopic rod 27 are slidably plugged in, and the outer ring of the telescopic rod 27 is fixedly installed with a spline 26, and the inner ring of the main rod 25 is provided with a limit groove that is slidably engaged with the spline 26; when the bracket 21 is rotated to adjust the height, the telescopic rod 27 can slide and retract inward or outward along the main rod 25 without hindering the lifting and lowering adjustment of the bracket 21. When digging trenches, the drive shaft 23 drives the main rod 25 to rotate. At this time, the main rod 25 drives the telescopic rod 27 to rotate synchronously through the engagement of the spline 26 and the limit groove, and then the telescopic rod 27 drives the transmission shaft 28 to rotate. Embodiment 4

[0028] See also Figures 4 - 8 As shown, the difference between this embodiment and the above embodiment is that the telescopic adjustment component includes a threaded column 38 and a transmission unit, the threaded column 38 is rotatably mounted on the lower end of the bracket 21 through a bearing, the support seat 31 is slidably mounted on the outer side of the lower end of the bracket 21 through a slide rail, and the top of the support seat 31 is provided with a threaded hole that is threadedly connected to the threaded column 38, and the top of the threaded column 38 is transmission-connected to the connecting shaft 210 through the transmission unit, so that when the bracket 21 is rotated to adjust the installation height, the threaded column 38 can be driven to rotate through the connection shaft 210 and the transmission unit to drive the threaded column 38 to rotate through the threaded transmission. The driving support seat 31 is lifted and lowered; the transmission unit includes a primary transmission bevel gear 33, a transmission rod 35 and a secondary driven bevel gear 37, the primary transmission bevel gear 33 is fixedly mounted on the connecting shaft 210, the transmission rod 35 is rotatably mounted on the lower end of the bracket 21, one end of the transmission rod 35 is fixedly mounted with a primary driven bevel gear 34 meshing and drivingly connected with the primary transmission bevel gear 33, the other end of the transmission rod 35 is fixedly mounted with a secondary transmission bevel gear 36, the secondary driven bevel gear 37 is fixedly mounted on the top of the threaded column 38, and is meshing and drivingly connected with the secondary transmission bevel gear 36; Among them, when the bracket 21 rotates to adjust the installation height, it can drive the connecting shaft 210 to rotate. At this time, the connecting shaft 210 drives the threaded column 38 to rotate through the transmission unit, so as to drive the support base 31 to lift and adjust through the threaded transmission between the threaded column 38 and the threaded hole, so that the roller 32 at the bottom end of the support base 31 always supports on the ground, and assists in supporting the bracket 21 and the cutter head 22; Specifically, when the bracket 21 rotates and moves downward, the bracket 21 drives the connecting shaft 210 to rotate. At this time, the connecting shaft 210 drives the first-stage driving bevel gear 33 to rotate synchronously. Then, the first-stage driving bevel gear 33 meshes with and drives the first-stage driven bevel gear 34 to rotate, thereby driving the transmission rod 35 and the second-stage driving bevel gear 36 to rotate. The second-stage driving bevel gear 36 drives the threaded column 38 to rotate through the meshing transmission with the second-stage driven bevel gear 37. Then, the threaded column 38 drives the support base 31 to move upward along the bracket 21 through the threaded transmission between the threaded column 38 and the threaded hole, thereby driving the roller 32 to move upward relative to the bracket 21. Moreover, the distance that the roller 32 moves upward relative to the bracket 21 is the same as the height that the end of the bracket 21 moves downward, so that the roller 32 can always support on the ground when the bracket 21 moves downward for adjustment; When the bracket 21 rotates and moves upward, the bracket 21 drives the connecting shaft 210 to rotate in the reverse direction. At this time, the connecting shaft 210 drives the first-stage driving bevel gear 33 to rotate in the reverse direction. Then, the first-stage driving bevel gear 33 meshes with and drives the first-stage driven bevel gear 34 to rotate in the reverse direction, thereby driving the transmission rod 35 and the second-stage driving bevel gear 36 to rotate in the reverse direction. The second-stage driving bevel gear 36 drives the threaded column 38 to rotate in the reverse direction through the meshing transmission with the second-stage driven bevel gear 37. Then, the threaded column 38 drives the support base 31 to move downward along the bracket 21 through the threaded transmission between the threaded column 38 and the threaded hole, thereby driving the roller 32 to move downward relative to the bracket 21. Moreover, the distance that the roller 32 moves downward relative to the bracket 21 is the same as the height that the end of the bracket 21 moves upward, so that the roller 32 can always support on the ground when the bracket 21 moves upward for adjustment, and assists in supporting the bracket 21. Embodiment Five

[0029] Please refer to Figure 4 、 Figure 6 As shown, the difference between this embodiment and the above embodiment is that a shock-absorbing shaft 39 is slidably inserted at the bottom end of the support base 31. A bottom plate 311 is fixedly installed at the bottom end of the shock-absorbing shaft 39. The roller 32 is rotatably installed at the bottom end of the bottom plate 311. A shock-absorbing spring 310 is sleeved on the outer ring of the shock-absorbing shaft 39. The shock-absorbing spring 310 abuts between the support base 31 and the bottom plate 311; when the trenching device vibrates due to factors such as uneven ground during movement or trenching, the shock-absorbing spring 310 can contract to absorb shock, so as to reduce the vibration amplitude of the bracket 21 and the cutter head 22, thereby improving the stability of the bracket 21 and the cutter head 22, and further improving the trenching effect of the cutter head 22. Embodiment Six

[0030] Please refer to Figures 6 - 8 As shown, the difference between this embodiment and the above embodiment is that a hydraulic cavity is formed inside the support base 31. The top end of the shock-absorbing shaft 39 extends into the hydraulic cavity and is fixedly installed with a hydraulic plug 312. The hydraulic plug 312 divides the hydraulic cavity into an upper hydraulic cavity 313 and a lower hydraulic cavity 314. A plurality of diversion holes 315 distributed in a circular pattern are formed on the hydraulic plug 312. The two ends of the diversion holes 315 are respectively communicated with the upper hydraulic cavity 313 and the lower hydraulic cavity 314; Among them, the hydraulic cavity is filled with hydraulic oil, so as to form a damping shock-absorbing structure inside the support base 31. When the shock-absorbing spring 310 contracts for shock absorption, the shock-absorbing shaft 39 drives the hydraulic plug 312 to move upward in the direction of the upper hydraulic cavity 313, so as to squeeze and transport the hydraulic oil in the upper hydraulic cavity 313 into the lower hydraulic cavity 314 through the diversion holes 315 on the hydraulic plug 312. Then, when the shock-absorbing spring 310 resets and elongates, the shock-absorbing shaft 39 drives the hydraulic plug 312 to move downward in the direction of the lower hydraulic cavity 314, and squeezes and transports the hydraulic oil in the lower hydraulic cavity 314 into the upper hydraulic cavity 313 through the diversion holes 315 on the hydraulic plug 312. Thus, the impact potential energy can be converted into the heat energy generated when the hydraulic oil flows during the shock-absorbing process, so as to consume the impact energy and improve the shock-absorbing effect on the support 21 and the cutter head 22. Embodiment Seven

[0031] Please refer to Figures 6 - 8 As shown, the difference between this embodiment and the above embodiment is that the bottom end of the threaded column 38 extends into the upper hydraulic cavity 313 and is fixedly installed with a sealing plate 317 that is slidably and sealedly connected to the upper hydraulic cavity 313. A plurality of flow regulating rods 316 corresponding to the diversion holes 315 one by one are fixedly installed at the bottom end of the sealing plate 317; the diversion holes 315 are in the structure of a frustum-shaped hole with a gradually increasing diameter from bottom to top, and the flow regulating rods 316 are in the structure of a conical rod with a gradually increasing diameter from bottom to top; When the threaded column 38 rotates to adjust the insertion depth in the support base 31, it can drive the sealing plate 317 to move up and down in the upper hydraulic cavity 313, and then drive the conical rod-shaped flow regulating rods 316 to move up and down along the diversion holes 315 by the sealing plate 317, so as to adjust the gap size of the diversion holes 315, and further adjust the flow rate of the hydraulic oil and the shock-absorbing effect during the shock-absorbing process; Specifically, when the trenching device needs to be moved and conveyed, when the support 21 rotates upward to drive the cutter head 22 to move above the ground, the support seat 31 moves downward relative to the threaded column 38, so that the roller 32 moves downward to support on the ground. At the same time, the sealing plate 317 moves upward relative to the hydraulic plug 312, thereby driving the flow regulating rod 316 of the conical rod structure to move upward along the diversion hole 315, so that the thinner position at the lower end of the flow regulating rod 316 is inserted into the diversion hole 315, thereby adjusting and increasing the pore size of the diversion hole 315. The larger the pore size of the diversion hole 315, the faster the hydraulic oil can flow through the diversion hole 315 during contraction and shock absorption, thereby increasing the contraction amplitude of the shock absorption shaft 39 during shock absorption, and further improving the shock absorption effect of the support 21 and the cutter head 22 when the trenching device is moved and conveyed; When the support 21 rotates downward to drive the cutter head 22 to move downward for trenching, the support seat 31 moves upward relative to the threaded column 38. At the same time, the sealing plate 317 moves downward relative to the hydraulic plug 312, thereby driving the flow regulating rod 316 of the conical rod structure to move downward along the diversion hole 315, so that the thicker position at the upper end of the flow regulating rod 316 is inserted into the diversion hole 315, thereby adjusting and reducing the pore size of the diversion hole 315. The smaller the pore size of the diversion hole 315, the slower the speed of the hydraulic oil flowing through the diversion hole 315 during contraction and shock absorption, thereby reducing the contraction amplitude of the shock absorption shaft 39 during shock absorption, and further reducing the vibration amplitude of the support 21 and the cutter head 22 during trenching, so as to improve the stability of the support 21 and the cutter head 22, and further improve the trenching effect.

[0032] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0033] The preferred embodiments of the invention disclosed above are only used to help illustrate the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the invention, so that those skilled in the art in the technical field can well understand and utilize the invention.

Claims

1. A trench-digging device for solar photovoltaic power generation construction, including a trench-digging mechanism, characterized in that: The trenching mechanism includes a bracket, a cutter disc, a lifting and adjusting assembly and a rotating driving assembly. The cutter disc is rotatably mounted on the bracket. The lifting and adjusting assembly can adjust the mounting height of the bracket to adjust the trenching depth of the cutter disc. The rotating driving assembly can drive the cutter disc to rotate and dig trenches when the bracket moves. An auxiliary support mechanism is also installed on the bracket, and the auxiliary support mechanism includes a support seat and a telescopic adjustment component. The support seat is installed below the bracket through a lifting adjustment component. A roller is rotatably installed on the bottom end of the support seat. When the lifting adjustment component adjusts the installation height of the bracket, the telescopic adjustment component can telescopically adjust the installation height of the support seat so that the roller at the bottom end of the support seat is always supported on the ground.

2. The trench digging device for solar photovoltaic power generation construction according to claim 1, characterized in that: It also includes a tractor, and the lifting and adjusting assembly includes a hydraulic telescopic shaft and a connecting frame, one end of the connecting frame is connected and installed on the tractor, and a connecting shaft is fixedly installed on the lower end of the bracket, and the connecting shaft is rotatably connected to the outer end of the connecting frame, one end of the hydraulic telescopic shaft is rotatably connected to the tractor, and the other end of the hydraulic telescopic shaft is rotatably connected to the top end of the bracket.

3. The trench digging device for solar photovoltaic power generation construction according to claim 2, characterized in that: The rotary drive assembly includes a drive shaft and a transmission shaft. The drive shaft is rotatably mounted on the tractor and is transmission-connected to the wheel shaft of the tractor via two meshing bevel gears. A telescopic transmission rod is rotatably mounted on the outer end of the drive shaft. The transmission shaft is rotatably mounted on a bracket, and the inner end of the transmission shaft is transmission-connected to the cutter disc via two meshing bevel gears. The outer end of the transmission shaft is rotatably connected to one end of the telescopic transmission rod.

4. A trench-digging device for solar photovoltaic power generation construction according to claim 3, characterized in that: The telescopic transmission rod includes a main rod and a telescopic rod, one end of the main rod is rotatably connected to the outer end of the driving shaft, one end of the telescopic rod is rotatably connected to the outer end of the transmission shaft, the main rod and the telescopic rod are slidably plugged in, and the outer ring of the telescopic rod is fixedly installed with a spline, and the inner ring of the main rod is provided with a limit groove that is slidably engaged with the spline.

5. The trenching device for solar photovoltaic power generation construction according to claim 2, characterized in that: The telescopic adjustment assembly includes a threaded column and a transmission unit, the threaded column is rotatably installed at the lower end of the bracket through a bearing, the support seat is slidably installed at the outer side of the lower end of the bracket through a slide rail, and the top of the support seat is provided with a threaded hole connected to the threaded column through threaded transmission, the top of the threaded column is connected to the connecting shaft through the transmission unit, so that when the bracket is rotated to adjust the installation height, the threaded column can be driven to rotate through the connection shaft and the transmission unit, so as to drive the support seat to be raised and lowered through the threaded transmission.

6. The trenching device for solar photovoltaic power generation construction according to claim 5, characterized in that: The transmission unit includes a primary transmission bevel gear, a transmission rod and a secondary driven bevel gear, the primary transmission bevel gear is fixedly mounted on the connecting shaft, the transmission rod is rotatably mounted on the lower end of the bracket, one end of the transmission rod is fixedly mounted with a primary driven bevel gear meshing and transmission connected with the primary transmission bevel gear, the other end of the transmission rod is fixedly mounted with a secondary transmission bevel gear, the secondary driven bevel gear is fixedly mounted on the top end of the threaded column, and is meshing and transmission connected with the secondary transmission bevel gear.

7. A trench-digging device for solar photovoltaic power generation construction according to claim 5, characterized in that: A shock-absorbing shaft is slidably inserted at the bottom end of the support base. A bottom plate is fixedly installed at the bottom end of the shock-absorbing shaft. The roller is rotatably installed at the bottom end of the bottom plate. A shock-absorbing spring is sleeved on the outer circumference of the shock-absorbing shaft. The shock-absorbing spring abuts between the support base and the bottom plate.

8. A trench-digging device for solar photovoltaic power generation construction according to claim 7, characterized in that: A hydraulic cavity is formed inside the support base. The top end of the shock-absorbing shaft extends into the hydraulic cavity and is fixedly installed with a hydraulic plug. The hydraulic plug divides the hydraulic cavity into an upper hydraulic cavity and a lower hydraulic cavity. A plurality of diversion holes distributed in a circular pattern are formed on the hydraulic plug. Two ends of each diversion hole are respectively communicated with the upper hydraulic cavity and the lower hydraulic cavity.

9. The trench digging device for solar photovoltaic power generation construction according to claim 8, characterized in that: The bottom end of the threaded column extends into the upper hydraulic cavity and is fixedly installed with a sealing plate that is slidably and sealingly connected to the upper hydraulic cavity. A plurality of flow rate adjusting rods corresponding to the diversion holes one by one are fixedly installed at the bottom end of the sealing plate.

10. The trenching device for solar photovoltaic power generation construction according to claim 9, characterized in that: The diversion hole is a frustum-shaped hole structure with a gradually increasing diameter from bottom to top. The flow rate adjusting rod is a conical rod structure with a gradually increasing diameter from bottom to top.

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