A shield machine swivel joint transition device
By designing a transition device for one-way valve and ball valve in the slewing joint of the shield machine, and using high-pressure waterway to clean the blocked slag improved channels, the problem of degradation of slag improvement effect and equipment excavation caused by blockage of slag improved nozzles is solved, and the problem of degradation of slag improvement is achieved. The equipment is operating normally.
Patent Information
- Application Number
- CN201911003771.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-10-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2039-10-22
AI Technical Summary
The slag improvement nozzles in the sludge modification joints of the shield machine are easily blocked, resulting in a decrease in the effect of slag improvement, poor slag output, and wear of mud cakes and tools on the cutter plate, affecting the normal excavation of the equipment.
A transition device including a frame, drive device, swivel joint, transition joint, improved passage, one-way valve and ball valve is designed to open the ball valve through a high-pressure waterway to clear the blocked side nozzle and improved passage.
It effectively solves the problem of blockage of slag improvement channels, improves the effect of slag improvement, avoids slag output and tool wear, and ensures normal excavation of the equipment.
Smart Images
Figure CN110630276B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a transition device, in particular to a shield machine swivel joint transition device. Background Art
[0002] In recent years, shield construction has been widely used due to its superiority in construction. During the excavation process, the shield machine will inject slag improver into the front of the cutterhead through the swivel joint and the corresponding pipeline channel to improve the workability of the soil cut by the shield machine cutterhead and stabilize the face. There are usually a number of slag improvement nozzles distributed in front of the cutterhead. During the process of the cutterhead cutting the soil, the slag improvement nozzles are often blocked. Due to the limitation of the internal sealing structure of the swivel joint, the internal channel of the swivel joint is not high in pressure, and the pressure of the slag improver cannot flush the blocked nozzles. It is difficult to clean the slag improvement nozzles after they are blocked. If the slag improvement nozzles are blocked, the slag improvement effect will decrease, and it is easy to cause problems such as poor slag discharge, mud cake on the cutterhead, and abnormal wear of the cutterhead tool. In severe cases, it will affect the normal excavation of the equipment. Therefore, we have made improvements to this and proposed a shield machine swivel joint transition device. Summary of the invention
[0003] In order to solve the above technical problems, the present invention provides the following technical solutions:
[0004] The present invention provides a swivel joint transition device for a shield machine, comprising a frame, a wear-resistant strip being arranged on the left side surface of the frame, two driving devices being arranged in the middle of the frame, a swivel joint being arranged between the two driving devices, a transition joint being fixedly connected at the left end of the swivel joint, a modified channel being fixedly connected at the top and the bottom of the transition joint, a one-way valve being arranged inside the modified channel, a three-way pipe being fixedly connected at one end of the one-way valve away from the transition joint, a ball valve being fixedly connected at the right side of the three-way pipe, and a high-pressure water circuit being externally connected to the ball valve.
[0005] As a preferred technical solution of the present invention, a cutter disc is arranged inside the wear-resistant strip, and four open grooves and a cross cutter groove are opened on the front side of the cutter disc.
[0006] As a preferred technical solution of the present invention, a connecting seat is provided in the middle of the cross knife groove, four first knife beams and four second knife beams are provided on the outer surface of the connecting seat, and a plurality of side nozzles distributed in a ring shape with the connecting seat as the center are opened on the knife disc, and the side nozzles are connected to the improved channel through a three-way pipe.
[0007] As a preferred technical solution of the present invention, the four first blade beams and the four second blade beams are distributed in a circle with the connecting seat as the center and are cross-arranged with each other, the four second blade beams are respectively located inside the four open grooves, and the four first blade beams are all located inside the cross blade groove.
[0008] As a preferred technical solution of the present invention, a man gate located above the driving device is arranged inside the frame, rollers are arranged on the outer surfaces of the four first knife beams, and cutting knives are arranged on the outer surfaces of the four second knife beams.
[0009] As a preferred technical solution of the present invention, a screw machine located below the driving device is fixedly installed inside the frame, and the screw machine is externally connected to a control switch, and the control switch is electrically connected to an external power supply.
[0010] The beneficial effects of the present invention are as follows: in the shield machine rotary joint transition device, a one-way valve is provided in each slag improvement channel, and a three-way pipe is connected to the one-way valve, one of the three-way pipes is connected to the ball valve, the ball valve is in a normally closed state, and the other way of the three-way pipe leads to the cutter disc. When the side nozzle on the cutter disc is blocked, the ball valve is opened, and the blocked side nozzle and the improvement channel are flushed open through the high-pressure water channel connected to the ball valve, so as to facilitate the cleaning of the blocked side nozzle and the improvement channel, thereby solving the problem of the blockage of the side nozzle and the improvement channel leading to a decrease in the slag improvement effect, and the problem of poor slag discharge, mud cake on the cutter disc, abnormal wear of the cutter disc tools, etc., which may affect the normal excavation of the equipment in severe cases. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0012] Figure 1 It is a structural schematic diagram of a swivel joint transition device for a shield machine of the present invention;
[0013] Figure 2 It is a left-side structural schematic diagram of a swivel joint transition device for a shield machine according to the present invention;
[0014] Figure 3 It is a structural schematic diagram of a one-way valve of a swivel joint transition device of a shield machine according to the present invention.
[0015] In the figure: 1, frame; 2, wear-resistant strip; 3, driving device; 4, swivel joint; 5, transition joint; 6, one-way valve; 7, ball valve; 8, improved channel; 9, screw machine; 10, man-gate; 11, cutter disc; 12, open groove; 13, first cutter beam; 14, second cutter beam; 15, cross cutter groove; 16, connecting seat; 17, three-way pipe; 18, side nozzle. DETAILED DESCRIPTION
[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0017] Example: Figure 1 , Figure 2 and Figure 3 As shown, a shield machine swivel joint transition device of the present invention comprises a frame 1, a wear-resistant strip 2 is arranged on the left side of the frame 1, two driving devices 3 are arranged in the middle of the frame 1, a swivel joint 4 is arranged between the two driving devices 3, a transition joint 5 is fixedly connected to the left end of the swivel joint 4, the top and bottom of the transition joint 5 are fixedly connected to an improved channel 8, a one-way valve 6 is arranged inside the improved channel 8, one end of the one-way valve 6 away from the transition joint 5 is fixedly connected to a three-way pipe 17, the right side of the three-way pipe 17 is fixedly connected to a ball valve 7, and the ball valve 7 is externally connected to a high-pressure water circuit.
[0018] A cutter disc 11 is arranged inside the wear-resistant strip 2 , and four open grooves 12 and a cross cutter groove 15 are formed on the front side of the cutter disc 11 .
[0019] Among them, a connecting seat 16 is arranged in the middle of the cross knife groove 15, and four first knife beams 13 and four second knife beams 14 are arranged on the outer surface of the connecting seat 16. A plurality of side nozzles 18 distributed in a ring shape with the connecting seat 16 as the center are opened on the knife disc 11. The side nozzle 18 is connected to the improved channel 8 through a three-way pipe 17. When the side nozzle 18 on the knife disc 11 is blocked, the ball valve 7 is opened, and the blocked side nozzle 18 and the improved channel 8 are flushed open through the high-pressure water channel connected to the ball valve 7, thereby facilitating the cleaning of the blocked side nozzle 18 and the improved channel 8.
[0020] Among them, the four first blade beams 13 and the four second blade beams 14 are distributed in a circle with the connecting seat 16 as the center and are arranged crosswise with each other. The four second blade beams 14 are respectively located inside the four open grooves 12, and the four first blade beams 13 are all located inside the cross blade groove 15. By setting the open grooves 12 and the cross blade grooves 15, the mud generated during the operation of the shield machine can be easily discharged.
[0021] Among them, the interior of the frame 1 is provided with a man gate 10 located above the driving device 3, the outer surfaces of the four first knife beams 13 are provided with rollers, and the outer surfaces of the four second knife beams 14 are provided with cutters. The working efficiency of the shield machine can be improved by the mutual cooperation of the rollers and the cutters.
[0022] Among them, a screw machine 9 located below the driving device 3 is fixedly installed inside the frame 1. The screw machine 9 is externally connected to a control switch, and the control switch is electrically connected to an external power supply. By setting up the screw machine 9, the mud generated during the operation of the shield machine can be transported out to prevent mud accumulation from affecting the operation of the shield.
[0023] During operation, a one-way valve 6 is provided in each slag improvement channel 8, and a three-way pipe 17 is connected to the one-way valve 6, one of the ways of the three-way pipe 17 is connected to the ball valve 7, the ball valve 7 is in a normally closed state, and the other way of the three-way pipe 17 leads to the cutter disc 11. When the side nozzle 18 on the cutter disc 11 is blocked, the ball valve 7 is opened, and the blocked side nozzle 18 and the improvement channel 8 are flushed open through the high-pressure water channel connected to the ball valve 7, so as to facilitate the cleaning of the blocked side nozzle 18 and the improvement channel 8, thereby solving the problem of the blockage of the side nozzle 18 and the improvement channel 8 leading to the reduction of the slag improvement effect, and the problems of poor slag discharge, mud cake formation on the cutter disc 11, abnormal wear of the cutter, etc., which may affect the normal excavation of the equipment in severe cases.
[0024] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit 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 modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A shield machine swivel joint transition device, comprising a frame (1), characterized in that: A wear-resistant strip (2) is arranged on the left side of the frame (1), two driving devices (3) are arranged in the middle of the frame (1), a swivel joint (4) is arranged between the two driving devices (3), the left end of the swivel joint (4) is fixedly connected to a transition joint (5), the top and bottom of the transition joint (5) are fixedly connected to an improved channel (8), a one-way valve (6) is arranged inside the improved channel (8), one end of the one-way valve (6) away from the transition joint (5) is fixedly connected to a three-way pipe (17), the right side of the three-way pipe (17) is fixedly connected to a ball valve (7), and the ball valve (7) is externally connected to a high-pressure water circuit; A cutter disc (11) is arranged inside the wear-resistant strip (2), and the front surface of the cutter disc (11) is provided with four open grooves (12) and a cross cutter groove (15); A connecting seat (16) is provided in the middle of the cross knife groove (15), and four first knife beams (13) and four second knife beams (14) are provided on the outer surface of the connecting seat (16). The knife disc (11) is provided with a plurality of side nozzles (18) distributed in a ring shape with the connecting seat (16) as the center, and the side nozzles (18) are connected to the improved channel (8) through a three-way pipe (17); The four first blade beams (13) and the four second blade beams (14) are arranged in a circle with the connecting seat (16) as the center and are arranged crosswise with each other, the four second blade beams (14) are respectively located inside the four open grooves (12), and the four first blade beams (13) are all located inside the cross blade groove (15); A man gate (10) is arranged inside the frame (1) and is located above the driving device (3); roller cutters are arranged on the outer surfaces of the four first blade beams (13); and cutters are arranged on the outer surfaces of the four second blade beams (14); A screw machine (9) located below the driving device (3) is fixedly installed inside the frame (1), and the screw machine (9) is externally connected to a control switch, and the control switch is electrically connected to an external power supply.