Dragging type annular chain arrangement structure and tunnel engineering machinery

Abstract

The utility model provides a dragging type annular chain arrangement structure and tunnel engineering machinery. The dragging type annular chain arrangement structure comprises a sliding trolley, a chain and a driving motor. The sliding trolley is arranged above the frame in the length direction of the frame in a sliding mode. Driven chain wheels are arranged at the front end and the rear end of the frame, the chain winds around the two driven chain wheels, one end of the chain is connected with the rear end of the sliding trolley, the other end of the chain is connected with the front end of the sliding trolley, and an annular closed chain is formed; the driving motor is arranged in the middle of the frame and coaxially provided with a driving chain wheel, and the driving chain wheel is connected with the chain. According to the scheme, the driving structure of the sliding trolley is simpler, the weight is lighter, the manufacturing difficulty and cost can be reduced, and the response speed of the sliding trolley can be increased.

Description

Technical Field

[0001] This utility model belongs to the field of traction mechanisms for engineering machinery, and particularly relates to a traction-type ring chain arrangement structure and tunnel engineering machinery. Background Technology

[0002] During tunnel construction, to accommodate the small turning radii and transport length requirements within the tunnel, the overall vehicle length typically needs to be minimized. Simultaneously, to meet construction requirements, the operational coverage area needs to be maximized to improve efficiency; therefore, the working device needs to be moved on the chassis. The existing method involves mounting the working device on a sliding steer trolley, with motors, reducers, and other drive mechanisms installed on the trolley. This structure results in a large load on the sliding steer trolley, placing high demands on the strength and installation precision of the overall steer trolley structure, kinematic pairs, reducers, and drive structures. This leads to high manufacturing difficulty and cost, and the large load during sliding motion results in slow response speed and significant wasted load. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a pull-type ring chain arrangement structure and tunnel engineering machinery. The drive structure of the sliding trolley is simpler and lighter, which helps to reduce manufacturing difficulty and cost, and can improve the response speed of the sliding trolley.

[0004] In order to achieve the purpose of this utility model, the following solution is proposed:

[0005] A pull-type ring chain arrangement structure includes: a sliding trolley, a chain, and a drive motor.

[0006] The sliding trolley is positioned above the frame along the length of the frame;

[0007] The frame is equipped with driven sprockets at both the front and rear ends. The chain passes around the two driven sprockets, and one end of the chain is connected to the rear end of the sliding carriage, while the other end of the chain is connected to the front end of the sliding carriage, forming a closed loop.

[0008] The drive motor is located in the middle of the frame, and a drive sprocket is coaxially mounted on the drive motor. The drive sprocket is connected to the chain.

[0009] Tunnel engineering machinery, including the aforementioned traction-type ring chain arrangement structure.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This solution adopts a ring chain arrangement structure, which reduces the load on the sliding trolley, makes the sliding trolley respond faster and has less resistance, reduces the performance requirements of the sliding trolley drive mechanism, and also reduces the manufacturing and assembly difficulty and cost, and the failure probability is correspondingly reduced.

[0012] 2. The ineffective load is significantly reduced, which will effectively improve the operation performance and response speed, effectively extend the service life of the chain, and make maintenance more convenient. Attached Figure Description

[0013] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0014] Figure 1 A schematic diagram of the structure of this application is shown.

[0015] Figure 2 It shows Figure 1 A magnified view of a portion of point A in the middle.

[0016] The diagram shows the following components: sliding carriage-1, chain-2, driven sprocket-21, drive motor-3, drive sprocket-31, guide wheel-32, and tension wheel-4. Detailed Implementation

[0017] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0018] Example 1, such as Figure 1 As shown, a pull-type ring chain arrangement structure includes: a sliding trolley 1, a chain 2, and a drive motor 3.

[0019] The sliding trolley 1 is slidably positioned above the frame along the length of the frame. Specifically, a pair of parallel rails can be installed on the frame, with the rails parallel to the length of the frame. The sliding trolley 1 is rolled on the rails by rollers. More specifically, the rails are channel steel structures, with the grooves of the two rails facing each other. The rollers of the sliding trolley 1 are rolled inside the channel steel, thus the channel steel can be used to limit the rollers and prevent the sliding trolley 1 from derailing.

[0020] Both the front and rear ends of the frame are equipped with driven sprockets 21. The chain 2 passes around the two driven sprockets 21, and one end of the chain 2 is connected to the rear end of the sliding trolley 1, while the other end of the chain 2 is connected to the front end of the sliding trolley 1, forming a closed loop.

[0021] The drive motor 3 is located in the middle of the frame, and the drive motor 3 is coaxially equipped with a drive sprocket 31, which is connected to the chain 2.

[0022] In operation, the drive motor 3 moves the chain 2, which in turn moves the sliding trolley 1 along the frame. This design uses a ring chain arrangement, which reduces the load on the sliding trolley 1, resulting in faster response and less resistance. This also lowers the performance requirements of the sliding trolley 1's drive mechanism, reduces manufacturing and assembly difficulty and cost, and consequently lowers the probability of failure. The significantly reduced ineffective load effectively improves operational performance and response speed, extends the service life of the chain 2, and makes maintenance more convenient.

[0023] Preferred, such as Figure 1 As shown, the middle section of chain 2 is located on the lower layer of the closed loop chain, while both ends of chain 2 and the sliding trolley 1 are located on the upper layer of the closed loop chain. This arrangement ensures that the sliding trolley 1 is always above the middle section of chain 2, and the middle section of chain 2 can be hidden inside the frame to save installation space and protect chain 2. It also prevents chain 2 from affecting the ease of use of the working device on the sliding trolley 1.

[0024] Preferred, such as Figure 1 As shown, the frame is equipped with tension pulleys 4 for tensioning the chain 2. There are two tension pulleys 4, both of which are connected to the lower layer of the annular closed chain corresponding to the chain 2. That is, both tension pulleys 4 are connected to the middle section of the chain 2, and both tension pulleys 4 are located below the chain 2. While tensioning, they provide upward support force to the chain 2, preventing the chain from disengaging from the driven sprocket due to its own weight. This allows for better engagement between the chain and the driven sprocket, improving the stability of the chain operation.

[0025] Preferred, such as Figure 2 As shown, the drive sprocket 31 is connected to the chain 2 corresponding to the lower layer of the annular closed chain. Each side of the drive sprocket 31 is provided with a guide wheel 32. The chain 2 passes under the drive sprocket 31 and over the two guide wheels 32, so that the connection between the chain 2 and the drive sprocket 31 forms a U-track. This improves the engagement length between the chain 2 and the drive sprocket 31, improves the connection stability between the drive sprocket 31 and the chain 2, prevents slippage and tooth skipping, and improves the load capacity of the chain 2.

[0026] Preferably, the guide wheel 32 is a sprocket structure and is matched with the chain 2.

[0027] Example 2: A tunnel engineering machine, including the traction-type ring chain arrangement structure described in Example 1.

[0028] Specifically, the frame is equipped with a pair of parallel tracks for mounting the sliding trolley 1, and the tracks are parallel to the length direction of the frame.

[0029] Preferably, the sliding trolley 1 is equipped with rollers on all four sides of its bottom, and the sliding trolley 1 is rolled on the track by the rollers to reduce the frictional resistance when the sliding trolley 1 moves.

[0030] The above description is merely a preferred embodiment of this utility model and does not imply its uniqueness or limitation. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. A draglink arrangement, characterized in that The utility model relates to a kind of chain drive type sliding trolley, including: Sliding trolley (1), chain (2) and drive motor (3); Sliding trolley (1) is slid along the length direction of frame and is above frame; The front and rear ends of frame are equipped with driven sprocket (21), chain (2) passes through two driven sprocket (21), and one end of chain (2) is connected with the rear end of sliding trolley (1), the other end of chain (2) is connected with the front end of sliding trolley (1), and forms a closed chain of annular; Drive motor (3) is located in the middle of frame, drive motor (3) is coaxially equipped with driving sprocket (31), and driving sprocket (31) is connected with chain (2).

2. A draglink arrangement according to claim 1, characterized in that The middle segment of chain (2) is below the closed chain of annular, and both ends of chain (2) and sliding trolley (1) are above the closed chain of annular.

3. A draglink arrangement according to claim 2, wherein, Tensioning wheel (4) is arranged on frame, for tensioning chain (2).

4. A draglink arrangement according to claim 3, wherein, Two tensioning wheels (4) are arranged, and the two tensioning wheels (4) are connected with the chain (2) corresponding to the lower layer of closed chain of annular.

5. A draglink arrangement according to claim 4, wherein, Tensioning wheel (4) is below chain (2).

6. A draglink arrangement according to claim 1, wherein, Driving sprocket (31) is connected with the chain (2) corresponding to the lower layer of closed chain of annular, and one guide wheel (32) is arranged on both sides of driving sprocket (31), chain (2) passes through below driving sprocket (31), and passes through above two guide wheels (32), so that the connection of chain (2) and driving sprocket (31) forms U track.

7. A draglink arrangement according to claim 6, wherein, Guide wheel (32) is sprocket structure, and is matched with chain (2).

8. A tunneling machine characterized by, The utility model relates to a kind of chain drive type sliding trolley, including:

9. A tunneling machine according to claim 8, wherein, A pair of parallel tracks are arranged on the frame for setting sliding trolley (1), and the tracks are parallel to the length direction of the frame.

10. A tunneling machine according to claim 9, wherein, Rollers are arranged around the bottom of sliding trolley (1), and sliding trolley (1) is arranged on the tracks by rolling to reduce the frictional resistance when sliding trolley (1) moves.

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