Damping device for shield tunneling machine for soft soil stratum

Abstract

The utility model discloses a damping device for a shield tunneling machine for a soft soil stratum, which belongs to the technical field of shield tunneling machine damping and comprises a base, a hydraulic rod arranged in an inner cavity of the base, a mounting plate arranged at the telescopic end of the hydraulic rod, moving wheels connected to four corners of the lower surface of the mounting plate, a fixing seat arranged at the top of the base, and a damping mechanism arranged in an inner cavity of the fixing seat. The damping mechanism comprises a bearing plate, sliding grooves are formed in the inner walls of the two sides of the fixed seat, a moving seat is slidably connected into each sliding groove, a first damper is connected between the outer side face of each moving seat and the outer side wall of the bearing plate, a supporting seat is installed at the top of the bearing plate, and multiple sets of arc-shaped blocks are arranged on the inner wall of the supporting seat. A buffering effect is provided for the shield tunneling machine from multiple directions, vibration of the shield tunneling machine during working is eliminated, and the situation that the using effect of the shield tunneling machine is affected due to vibration when the shield tunneling machine on a soft soil stratum is used is avoided; and the contact area between the damping device and the soft soil stratum is large, so that the stability of the whole damping device during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machine shock absorption, in particular to a shield machine shock absorption device for soft soil layers. Background Art

[0002] The shield machine is a special equipment used for underground tunnel construction. It looks like a large cylinder. It uses the mechanical properties of the soil and the formation conditions to dig the tunnel using the shield method. At the same time, a support structure is set up at the rear to ensure construction safety and tunnel stability. The shield machine can work in various geological conditions, including soft soil, rock, etc.

[0003] When a shield machine is used on soft soil, a shock absorbing device is required. However, the existing shock absorbing device has a general shock absorbing effect and can only provide shock absorbing and buffering effect to the shield machine from a single direction. The shield machine will still vibrate when working, and the vibration affects the use effect of the shield machine. The shock absorbing device is not stable enough when in use. For this reason, we propose a shock absorbing device for a shield machine for soft soil. Utility Model Content

[0004] The purpose of the utility model is to provide a shock absorbing device for a shield machine used in soft soil layers to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A shock absorbing device for a shield machine for soft soil strata comprises a base, an inner cavity of the base is opened in a cavity, a hydraulic rod is connected to the inner wall at the top end of the cavity, a mounting plate is provided at the telescopic end of the hydraulic rod, and moving wheels are connected at the four corners of the lower surface of the mounting plate, a fixed seat is provided at the top of the base, a controller is provided on the front outer wall of the fixed seat, and a shock absorbing mechanism is provided in the inner cavity of the fixed seat, the shock absorbing mechanism comprises a bearing plate, sliding grooves are opened on the inner walls on both sides of the fixed seat, a moving seat is slidably connected in each group of sliding grooves, a shock absorber is connected between the outer side surface of the moving seat and the outer side wall of the bearing plate, a support seat is installed on the top of the bearing plate, and a plurality of groups of arc blocks are provided on the inner wall of the support seat.

[0007] Further: the shock absorbing mechanism also includes a fixed rod, which is located on the inner wall of the bottom end of the fixed seat, and two groups of sliding seats are slidably connected to the fixed rod, and two groups of compression springs are sleeved on the fixed rod, and the two groups of compression springs are respectively located between the outer side surfaces of the two groups of sliding seats and the inner walls on both sides of the fixed seat, and hinged seats are installed on the top of the two groups of sliding seats and both sides of the lower surface of the load-bearing plate, and an inclined rod is connected between the upper and lower adjacent hinged seats.

[0008] Furthermore: the front end surface of the base is movably connected with an opening and closing door, and the bottom wall of the base is provided with four groups of through openings adapted to the moving wheels.

[0009] Furthermore: the inner wall of the support seat is provided with a plurality of groups of slots, and the inner wall of each group of slots is provided with a second shock absorber.

[0010] Furthermore: support frames are installed on the outer walls of both sides of the base, and the bottoms of the two groups of support frames are connected with pads.

[0011] Furthermore: a damping pad is provided on the lower surface of the pad, and a corrugated protrusion is embedded on the lower surface of the damping pad.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model can provide a buffering effect to the shield machine on the soft soil layer from the vertical direction through the elasticity of the two groups of compression springs on the shock absorbing mechanism and the action of the hinged oblique rods, provide a buffering effect to the shield machine from both sides through the action of the outer wall of the moving seat and the shock absorber one, provide a buffering effect to the shield machine from multiple directions through the action of multiple groups of slotted internal shock absorbers two and arc blocks, eliminate the vibration of the shield machine when working, and avoid the shield machine on the soft soil layer from being affected by the vibration when in use; through the work of the hydraulic rod, the four groups of moving wheels can be stored in the cavity, the contact area between the base and the ground is large, the two groups of support frames and the pads provide supporting force to the base from both sides, and the stability of the entire shock absorbing device when in use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of the utility model;

[0015] Figure 2 It is a front structural cross-sectional schematic diagram of the utility model;

[0016] Figure 3 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0017] In the figure: 1. base; 2. support frame; 3. pad; 4. opening and closing door; 5. fixed seat; 6. controller; 7. support seat; 8. arc block; 9. cavity; 10. hydraulic rod; 11. mounting plate; 12. moving wheel; 13. through-hole; 14. slide groove; 15. moving seat; 16. shock absorber 1; 17. bearing plate; 18. slot; 19. shock absorber 2; 20. fixed rod; 21. sliding seat; 22. compression spring; 23. hinged seat; 24. inclined rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1:

[0020] See also Figure 1-3 The utility model provides a technical solution: a shock absorbing device for a shield machine for soft soil strata, comprising a base 1, an inner cavity of the base 1 is opened in a cavity 9, a hydraulic rod 10 is connected to the inner wall of the top of the cavity 9, a mounting plate 11 is provided at the telescopic end of the hydraulic rod 10, and moving wheels 12 are connected at the four corners of the lower surface of the mounting plate 11, a fixed seat 5 is provided at the top of the base 1, a controller 6 is provided on the front outer wall of the fixed seat 5, and a shock absorbing mechanism is provided in the inner cavity of the fixed seat 5, the shock absorbing mechanism comprises a bearing plate 17, slide grooves 14 are opened on the inner walls of both sides of the fixed seat 5, a moving seat 15 is slidably connected in each group of slide grooves 14, a shock absorber 16 is connected between the outer side surface of the moving seat 15 and the outer side wall of the bearing plate 17, a support seat 7 is installed on the top of the bearing plate 17, and a plurality of groups of arc blocks 8 are provided on the inner wall of the support seat 7.

[0021] When in use, the hydraulic rod 10 is started to move the four groups of moving wheels 12 out of the cavity 9. The four groups of moving wheels 12 are in contact with the ground, and the shock absorbing device can be moved to the working position. After the use position of the shock absorbing device is determined, the hydraulic rod 10 works to store the four groups of moving wheels 12 in the cavity 9. At this time, the base 1 is in contact with the working ground, and the pads 3 at the bottom of the two groups of support frames 2 are in contact with the working ground. The base 1 and the pads 3 have a large contact area with the soft soil layer, which improves the stability of the entire shock absorbing device when in use; through the inner cavity of the fixing seat 5 The elasticity of the two groups of compression springs 22 on the shock absorbing mechanism and the action of the hinged diagonal rod 24 can provide a buffering effect to the shield machine on the soft soil layer from the vertical direction. Through the action of the outer wall of the movable seat 15 and the shock absorber 16, a buffering effect can be provided to the shield machine from both sides. The action of the shock absorber 2 19 and the arc block 8 in the multiple groups of slots 18 can provide a buffering effect to the shield machine from multiple directions, eliminate the vibration of the shield machine during operation, and avoid affecting the use effect of the shield machine on the soft soil layer due to vibration during use.

[0022] Among them, preferably, the shock absorbing mechanism also includes a fixed rod 20, which is located on the inner wall of the bottom end of the fixed seat 5, and two groups of sliding seats 21 are slidably connected to the fixed rod 20, and two groups of compression springs 22 are sleeved on the fixed rod 20, and the two groups of compression springs 22 are respectively located between the outer side surfaces of the two groups of sliding seats 21 and the inner walls on both sides of the fixed seat 5, and hinged seats 23 are installed on the top of the two groups of sliding seats 21 and both sides of the lower surface of the load-bearing plate 17, and an inclined rod 24 is connected between the upper and lower adjacent hinged seats 23; through the sliding connection between the moving seat 15 and the slide groove 14, the upper and lower positions of the load-bearing plate 17 can be limited, and the sliding seat 21 is fixedly connected to the hinged seat 23, and through the elasticity of the two groups of compression springs 22, the action of the hinged inclined rod 24 plays a vertical buffering role on the support seat 7 and the shield machine on the load-bearing plate 17.

[0023] Preferably, the front end face of the base 1 is movably connected with an opening and closing door 4, and the bottom wall of the base 1 is provided with four groups of through-holes 13 adapted to the moving wheels 12; a battery pack is also installed in the cavity 9, and the opening and closing door 4 is convenient for opening and closing, and is convenient for maintenance of the battery pack, and the through-holes 13 are used for the passage of the moving wheels 12.

[0024] Preferably, the inner wall of the support seat 7 is provided with multiple groups of grooves 18, and the inner wall of each group of grooves 18 is installed with a shock absorber 2 19; the shock absorber 2 19 and the shock absorber 1 16 are composed of a telescopic rod and a shock-absorbing spring. Through the action of the multiple groups of shock absorbers 2 19, the shield machine is provided with buffering from multiple directions, and through the two groups of shock absorbers 16, the shield machine is provided with buffering from both sides.

[0025] Preferably, support frames 2 are installed on both side outer walls of the base 1, and pads 3 are connected to the bottoms of the two groups of support frames 2; the two groups of support frames 2 and the pads 3 provide supporting force to the base 1 from both sides.

[0026] Embodiment 2:

[0027] Reference Figure 1 This embodiment is different from the first embodiment in that a damping pad is provided on the lower surface of the pad 3, and a corrugated protrusion is embedded on the lower surface of the damping pad; the damping pad and the protrusion further increase the friction when in contact with the soft soil layer, and further improve the stability of the shock absorbing device when in use.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shock absorbing device for a shield machine for soft soil, comprising a base (1), characterized in that: The inner cavity of the base (1) is opened in the cavity (9), the inner wall at the top end of the cavity (9) is connected to a hydraulic rod (10), the telescopic end of the hydraulic rod (10) is provided with a mounting plate (11), and the four corners of the lower surface of the mounting plate (11) are connected to moving wheels (12), the top of the base (1) is provided with a fixed seat (5), the front end outer wall of the fixed seat (5) is provided with a controller (6), and the inner cavity of the fixed seat (5) is provided with a shock absorbing mechanism, the shock absorbing mechanism comprises a bearing plate (17), the inner walls on both sides of the fixed seat (5) are provided with sliding grooves (14), each group of sliding grooves (14) is slidably connected with a moving seat (15), a shock absorber (16) is connected between the outer side surface of the moving seat (15) and the outer side wall of the bearing plate (17), the top of the bearing plate (17) is provided with a support seat (7), and the inner wall of the support seat (7) is provided with a plurality of groups of arc blocks (8).

2. The shock absorbing device for a shield machine for soft soil according to claim 1, characterized in that: The shock absorbing mechanism further comprises a fixing rod (20), the fixing rod (20) being located on the inner wall of the bottom end of the fixing seat (5), and two groups of sliding seats (21) being slidably connected to the fixing rod (20), and two groups of compression springs (22) being sleeved on the fixing rod (20), and the two groups of compression springs (22) being respectively located between the outer side surfaces of the two groups of sliding seats (21) and the inner walls on both sides of the fixing seat (5).

3. The shock absorbing device for a shield machine for soft soil according to claim 2, characterized in that: Hinge seats (23) are installed on the tops of the two groups of sliding seats (21) and on both sides of the lower surface of the bearing plate (17), and inclined rods (24) are connected between the upper and lower adjacent hinge seats (23).

4. The shock absorbing device for a shield machine for soft soil according to claim 1, characterized in that: The front end surface of the base (1) is movably connected to an opening and closing door (4), and the bottom wall of the base (1) is provided with four groups of through openings (13) adapted to the moving wheels (12).

5. The shock absorbing device for a shield machine for soft soil according to claim 1, characterized in that: The inner wall of the support seat (7) is provided with a plurality of groups of slots (18), and the inner wall of each group of slots (18) is provided with a second shock absorber (19).

6. The shock absorbing device for a shield machine for soft soil according to claim 1, characterized in that: Support frames (2) are installed on the outer walls of both sides of the base (1), and the bottoms of the two groups of support frames (2) are connected to pads (3).

7. The shock absorbing device for a shield machine for soft soil according to claim 6, characterized in that: The lower surface of the pad (3) is provided with a damping pad, and the lower surface of the damping pad is embedded with a corrugated protrusion.

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