Drag chain type earth cutting structure

Abstract

The utility model discloses a drag chain type earth cutting structure, and relates to the technical field of drag chain type earth cutting structures, the drag chain type earth cutting structure comprises a drag chain type earth cutting drill bit body, the upper end and the bottom end of the drag chain type earth cutting drill bit body are symmetrically and fixedly connected with first fixing blocks and rotationally connected with second fixing blocks respectively, one end of each first fixing block is rotationally connected with a first rotating column, and the other end of each second fixing block is rotationally connected with a second rotating column. The outer side of the first rotating column is sleeved with a drag chain wheel, fixing assemblies are symmetrically installed at the two ends of the second fixing block, one end of the drag chain type earth cutting drill bit body is rotationally connected with a second rotating column, drag chain bodies are installed on the outer side of the first rotating column and the outer side of the second rotating column, and a damping assembly is installed in the drag chain type earth cutting drill bit body. By the adoption of the structure, workers can replace the drag chain wheel conveniently, complex operation steps are not needed, maintenance efficiency is improved, continuity and high efficiency of excavation operation are guaranteed, it can be guaranteed that the drag chain wheel is in a good state all the time, and safety accidents caused by failure of parts are reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of cable chain excavation structure, and specifically relates to a cable chain excavation structure. Background Technology

[0002] A cable chain excavator structure, in short, is an excavating machinery structure that uses a cable chain as its walking foundation. This structure is typically integrated into heavy equipment such as excavators and chain trenchers. It provides stable support and propulsion through the continuous movement of the cable chain, enabling the machinery to perform excavation operations in various terrain conditions. The core of the cable chain excavator structure lies in its unique walking system, which consists of a series of closely connected chain links that surround the drive and driven wheels, achieving continuous movement of the machinery through a power source.

[0003] Currently, with long-term use, the drag chain wheels of drag chain excavators on the market will wear down. As the drag chain wheels wear down, the clearance between the drag chain wheels and the drag chain and other components will increase, resulting in a decrease in transmission efficiency. This will affect the overall working efficiency of the excavator. Moreover, wear will also affect the rotational accuracy of the drag chain wheels, making it difficult for the excavator to maintain a stable digging trajectory and depth during operation, thus affecting the construction quality. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a drag chain excavation structure to solve the problem that when drag chain excavation drill bits are used for a long time, the first rotating column will wear out. As the first rotating column wears out, the clearance between the first rotating column and the drag chain and other components will increase, resulting in a decrease in transmission efficiency and thus affecting the overall working efficiency of the excavation drill bit.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A drag chain excavating structure includes a drag chain excavating drill bit body. First fixing blocks are symmetrically fixedly connected to the upper and lower ends of the drag chain excavating drill bit body. Second fixing blocks are symmetrically rotatably connected to the upper and lower ends of the drag chain excavating drill bit body. A first rotating column is rotatably connected to the end of the first fixing block near the second fixing block. A drag chain wheel is sleeved on the outer side of the first rotating column. Fixing plates are symmetrically fixedly connected to both ends of the second fixing blocks. Fixing components are installed on the upper end of the fixing plates. A rotating groove is opened at the upper end of the drag chain excavating drill bit body, penetrating the drag chain excavating drill bit body. A second rotating column is rotatably connected inside the rotating groove. A drag chain body is installed on the outer side of the first and second rotating columns. A mounting groove is symmetrically opened at one end of the drag chain excavating drill bit body, penetrating the drag chain excavating drill bit body. A shock-absorbing component is installed inside the mounting groove.

[0007] The fixing assembly includes a fixing tube, a return spring, a movable plate, a connecting post, a handle, and a fixing post. The fixing tube is fixedly connected to the upper end of the fixing plate. A return spring is fixedly connected to the upper end of the fixing tube. The movable plate is fixedly connected to the other end of the return spring. The movable plate and the fixing tube are slidably connected. A connecting post is fixedly connected to the end of the movable plate near the return spring. The return spring is sleeved on the outside of the connecting post. The end of the connecting post away from the movable plate extends out of one end of the fixing tube and is fixedly connected to the handle. The end of the movable plate away from the return spring is fixedly connected to the fixing post. The end of the fixing post away from the movable plate extends out of the bottom end of the fixing plate. The drag chain type excavating drill bit body has symmetrical fixing grooves at both the upper and lower ends. The fixed slot and the fixed column are plugged in. The second fixed block has a circular slot at one end near the first rotating column. A rotating disk is rotatably connected inside the circular slot. A slot is opened at one end of the rotating disk. The first rotating column is plugged in to the slot. A cross block is fixedly connected at one end of the first rotating column near the second fixed block. A cross groove is opened at one end of the slot. The cross groove and the cross block are plugged in. This makes it convenient for workers to replace the drag chain wheel, reduces downtime, ensures the continuity and efficiency of excavation operations, and eliminates the need for complicated operating procedures, thereby improving maintenance efficiency. Moreover, timely replacement of worn drag chain wheels can ensure that the drag chain wheel is always in good condition, reducing safety accidents caused by component failure.

[0008] As a preferred technical solution, the vibration damping component includes a vibration damping seat, a first limiting post, an internal hole, a first vibration damping spring, and a second limiting post. Vibration damping seats are symmetrically fixedly connected to the upper and lower ends of the mounting groove. The upper end of the vibration damping seat at the bottom of the mounting groove is fixedly connected to the first limiting post. An internal hole is formed at the upper end of the first limiting post, and the bottom end of the internal hole is fixedly connected to the first vibration damping spring. The other end of the first vibration damping spring is fixedly connected to the second limiting post, which is slidably connected to the internal hole. The other end of the second limiting post is fixedly connected to the bottom end of the vibration damping seat at the upper end of the mounting groove. A second vibration damping spring is sleeved on the outer side of the first and second limiting posts. The two ends of the second vibration damping spring are fixed to the opposite ends of the vibration damping seat. This effectively absorbs and disperses the enormous impact force and vibration generated when the drill bit strikes the rock, thereby protecting the drill bit and drilling tools from damage and extending their service life. It also reduces the direct impact between the drill bit and the rock, lowering drilling resistance and friction, allowing the drill bit to enter the rock more easily, thus improving drilling speed and efficiency.

[0009] In summary, the present invention has the following main advantages:

[0010] First, in this utility model, pulling the handle upward causes the connecting column to move the moving plate and the fixed column upward, causing the moving plate to press against the return spring, compressing the return spring, and simultaneously ending the insertion of the fixed column into the fixed slot. Then, rotating the second fixed block causes the cross slot to end the insertion of the cross block, and the first rotating column to end the insertion of the slot. Then, pulling the drag chain wheel outward causes the drag chain wheel to be removed from the outside of the first rotating column for replacement. The drag chain wheel installation can then be completed by reversing the operation. This reduces downtime, ensures the continuity and efficiency of excavation operations, and eliminates the need for complicated operating procedures, thereby improving maintenance efficiency. Furthermore, timely replacement of worn drag chain wheels ensures that the drag chain wheels are always in good condition, reducing safety accidents caused by component failure.

[0011] Secondly, in this utility model, when the drag chain type excavating drill bit body is working, the vibration generated causes the first limiting post to slide inside the built-in hole, causing the first limiting post to press against the first damping spring. The first damping spring is compressed, and at the same time, the second damping spring is compressed. This effectively absorbs and disperses the huge impact force and vibration generated when the drill bit hits the rock, thereby protecting the drill bit and drilling tools from damage and extending their service life. It also reduces the direct impact between the drill bit and the rock, reduces drilling resistance and friction, and allows the drill bit to enter the rock more easily, thereby improving drilling speed and efficiency. At the same time, the damping component reduces the risk of damage to the drill bit and drilling tools due to vibration and impact, thereby reducing the failure rate of the drill bit and improving its reliability and stability. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a cross-sectional perspective view of the fixing component of this utility model.

[0014] Figure 3 This is a cross-sectional three-dimensional structural diagram of the shock absorption component of this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram of the second fixing block of this utility model.

[0016] Reference numerals in the attached drawings: 1. Drag chain type excavator bit body; 2. First fixing block; 3. Second fixing block; 4. First rotating column; 5. Drag chain body; 6. Rotating groove; 7. Second rotating column; 8. Mounting groove; 9. Fixing plate; 10. Shock absorption assembly; 101. Shock absorption seat; 102. First limiting column; 103. Internal hole; 104. First shock absorption spring; 105. Second limiting column; 11. Fixing assembly; 111. Fixing tube; 112. Return spring; 113. Moving plate; 114. Connecting column; 115. Pull handle; 116. Fixing column; 12. Fixing groove; 13. Slot; 14. Cross groove; 15. Cross block; 16. Circular groove; 17. Rotating disk; 18. Drag chain wheel; 19. Second shock absorption spring. Detailed Implementation

[0017] Example

[0018] refer to Figures 1 to 4 The drag chain excavation structure described in this embodiment includes a drag chain excavation drill bit body 1. A first fixing block 2 is symmetrically fixedly connected to both the upper and lower ends of the drag chain excavation drill bit body 1. A second fixing block 3 is symmetrically rotatably connected to both the upper and lower ends of the drag chain excavation drill bit body 1. A first rotating column 4 is rotatably connected to one end of the first fixing block 2 near the second fixing block 3. A drag chain wheel 18 is sleeved on the outside of the first rotating column 4. Fixing plates 9 are symmetrically fixedly connected to both ends of the second fixing block 3. A fixing component 11 is installed on the upper end of the fixing plate 9. A rotating groove 6 is opened at the upper end of the drag chain excavation drill bit body 1, penetrating the drag chain excavation drill bit body 1. A second rotating column 7 is rotatably connected inside the rotating groove 6. A drag chain body 5 is installed on the outside of the first rotating column 4 and the second rotating column 7. An installation groove 8 is symmetrically opened at one end of the drag chain excavation drill bit body 1, penetrating the drag chain excavation drill bit body 1. A shock-absorbing component 10 is installed inside the installation groove 8.

[0019] The fixing assembly 11 includes a fixing tube 111, a return spring 112, a movable plate 113, a connecting post 114, a handle 115, and a fixing post 116. The fixing tube 111 is fixedly connected to the upper end of the fixing plate 111. The return spring 112 is fixedly connected to the upper end of the fixing tube 111. The movable plate 113 is fixedly connected to the other end of the return spring 112. The movable plate 113 is slidably connected to the interior of the fixing tube 111. The connecting post 114 is fixedly connected to the end of the movable plate 113 closest to the return spring 112. The return spring 112 is sleeved on the outside of the connecting post 114. The end of the connecting post 114 furthest from the movable plate 113 extends out of one end of the fixing tube 111 and is fixedly connected to the handle 115. The movable plate 113 furthest from the movable plate 113 extends out of one end of the fixing tube 111 and is fixedly connected to the handle 115. One end of the return spring 112 is fixedly connected to a fixing post 116. The end of the fixing post 116 away from the moving plate 113 extends out of the bottom end of the fixing plate 9. The upper and lower ends of the drag chain excavator drill bit body 1 are symmetrically provided with fixing grooves 12. The fixing grooves 12 and the fixing post 116 are inserted into each other. Pulling the handle 115 upward causes the connecting post 114 to drive the moving plate 113 and the fixing post 116 to move upward, so that the moving plate 113 presses against the return spring 112, and the return spring 112 is compressed. At the same time, the fixing post 116 and the fixing groove 12 are no longer inserted into each other. Then, the second fixing block 3 is rotated, and the drag chain wheel 18 is pulled outward, so that the drag chain wheel 18 is removed from the outside of the first rotating post 4, thus completing the disassembly of the drag chain wheel 18.

[0020] refer to Figure 4 A circular groove 16 is provided at one end of the second fixed block 3 near the first rotating column 4. A rotating disk 17 is rotatably connected inside the circular groove 16. A slot 13 is provided at one end of the rotating disk 17. The first rotating column 4 is inserted into the slot 13. A cross block 15 is fixedly connected at one end of the first rotating column 4 near the second fixed block 3. A cross groove 14 is provided at one end of the slot 13. The cross groove 14 is inserted into the cross block 15. Pulling the handle 115 upward causes the connecting column 114 to drive the moving plate 113 and the fixed column 116 to move upward, causing the moving plate 113 to press against the return spring 112. The return spring 112 is compressed. Then, the second fixed block 3 is rotated so that the second fixed block 3 merges with the rotating column, allowing the cross groove 14 to insert into the cross block 15 and the first rotating column 4 to insert into the slot 13, thus completing the installation of the drag chain wheel 18.

[0021] refer to Figure 3The damping assembly 10 includes a damping seat 101, a first limiting post 102, an internal hole 103, a first damping spring 104, and a second limiting post 105. The damping seat 101 is symmetrically fixedly connected to both the upper and lower ends of the mounting groove 8. The upper end of the damping seat 101 at the bottom of the mounting groove 8 is fixedly connected to the first limiting post 102. An internal hole 103 is formed at the upper end of the first limiting post 102. The bottom end of the internal hole 103 is fixedly connected to the first damping spring 104. The other end of the first damping spring 104 is fixedly connected to the second limiting post 105. The second limiting post 105 and the internal hole 102 are connected to each other. 3 is a sliding connection. The other end of the second limiting post 105 is fixedly connected to the bottom end of the upper shock absorber seat 101 inside the mounting groove 8. The first limiting post 102 and the second limiting post 105 are fitted with a second shock absorber spring 19. The two ends of the second shock absorber spring 19 are fixed to the opposite ends of the shock absorber seat 101 respectively. When the drag chain type digging drill bit body 1 is working, the vibration generated causes the first limiting post 102 to slide inside the built-in hole 103, so that the first limiting post 102 presses against the first shock absorber spring 104, the first shock absorber spring 104 is compressed, and at the same time the second shock absorber spring 19 is compressed.

[0022] Operating principle and advantages: Pulling the handle 115 upwards causes the connecting post 114 to move the moving plate 113 and the fixed post 116 upwards, causing the moving plate 113 to press against the return spring 112, compressing the return spring 112. At the same time, the fixed post 116 and the fixed groove 12 are no longer inserted. Then, the second fixed block 3 is rotated, causing the cross groove 14 and the cross block 15 to be no longer inserted. The first rotating post 4 and the slot 13 are no longer inserted. Then, the drag chain wheel 18 is pulled outwards, causing the drag chain wheel 18 to be removed from the outside of the first rotating post 4. The drag chain wheel 18 is then replaced. The installation of the drag chain wheel 18 can be completed by reversing the operation.

[0023] This utility model facilitates the replacement of the drag chain wheel 18 by the staff, reduces downtime, ensures the continuity and efficiency of excavation operations, and does not require complicated operating procedures, thereby improving maintenance efficiency. Moreover, timely replacement of worn drag chain wheels 18 can ensure that the drag chain wheels 18 are always in good condition, reducing safety accidents caused by component failure.

Claims

1. A dragline earth structure comprising a dragline earth boring bit body, characterised in that: The drag chain type excavating drill bit body has a first fixing block symmetrically fixedly connected to its upper and lower ends. A second fixing block is symmetrically rotatably connected to both the upper and lower ends of the drag chain type excavating drill bit body. A first rotating column is rotatably connected to the end of the first fixing block near the second fixing block. A drag chain wheel is sleeved on the outer side of the first rotating column. Fixing plates are symmetrically fixedly connected to both ends of the second fixing block. A fixing component is installed on the upper end of the fixing plate. A rotating groove is opened at the upper end of the drag chain type excavating drill bit body, penetrating the drag chain type excavating drill bit body. A second rotating column is rotatably connected inside the rotating groove. A drag chain body is installed on the outer side of the first and second rotating columns. A mounting groove is symmetrically opened at one end of the drag chain type excavating drill bit body, penetrating the drag chain type excavating drill bit body. A shock-absorbing component is installed inside the mounting groove. The fixing assembly includes a fixing tube, a return spring, a movable plate, a connecting post, a handle, and a fixing post. The fixing tube is fixedly connected to the upper end of the fixing plate. The return spring is fixedly connected to the upper end of the inside of the fixing tube. The movable plate is fixedly connected to the other end of the return spring. The movable plate is slidably connected to the inside of the fixing tube. The connecting post is fixedly connected to the end of the movable plate near the return spring. The return spring is sleeved on the outside of the connecting post. The end of the connecting post away from the movable plate extends out of one end of the fixing tube and is fixedly connected to the handle. The fixing post is fixedly connected to the end of the movable plate away from the return spring. The end of the fixing post away from the movable plate extends out of the bottom end of the fixing plate.

2. A dragline earth structure according to claim 1, wherein: The drag chain type excavating drill bit body has symmetrical fixing grooves at the upper and lower ends, and the fixing grooves are inserted into the fixing posts.

3. A dragline earth structure according to claim 1 wherein: The second fixing block has a circular groove at one end near the first rotating column, and a rotating disk is rotatably connected inside the circular groove.

4. A dragline earth structure according to claim 1, wherein: The rotating disk has a slot at one end, and the first rotating column is inserted into the slot.

5. A dragline earth structure according to claim 1 wherein: A cross block is fixedly connected to one end of the first rotating column near the second fixed block, and a cross groove is opened at one end of the slot, and the cross groove and the cross block are inserted into each other.

6. A dragline earth structure according to claim 1 wherein: The shock absorption assembly includes a shock absorption seat, a first limiting post, an internal hole, a first shock absorption spring, and a second limiting post. The upper and lower ends of the mounting groove are symmetrically fixedly connected to the shock absorption seats. The upper end of the shock absorption seat at the bottom of the mounting groove is fixedly connected to the first limiting post. The upper end of the first limiting post has an internal hole. The lower end of the internal hole is fixedly connected to the first shock absorption spring. The other end of the first shock absorption spring is fixedly connected to the second limiting post. The second limiting post is slidably connected to the internal hole. The other end of the second limiting post is fixedly connected to the lower end of the shock absorption seat at the upper end of the mounting groove.

7. A dragline earth structure according to claim 1 wherein: A second damping spring is sleeved on the outer side of the first and second limiting posts, and the two ends of the second damping spring are fixed to the opposite ends of the damping seat.

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