Jacking mechanism of shield equipment

Abstract

The utility model belongs to the technical field of shield tunneling machines, and particularly relates to a shield tunneling equipment jacking mechanism which comprises a shield body, an annular installation groove is formed in the shield body, an installation ring is rotatably installed in the annular installation groove, and a rotating mechanism capable of enabling the installation ring to rotate is arranged at the inner top of the shield body. A plurality of groups of jacking assemblies are arrayed on one side of the mounting ring in the circumferential direction; each jacking assembly comprises a mounting plate fixed to one side of the mounting ring, a detachable second hydraulic cylinder is arranged on one side of the mounting plate, a detachable top plate is arranged on an output shaft of the second hydraulic cylinder, and T-shaped grooves are formed in the two sides of the top plate and the two sides of the mounting plate correspondingly. Limiting blocks matched with the T-shaped grooves are fixed to the two ends of the second hydraulic cylinder correspondingly, and a mounting base is fixed to the position, located between the two T-shaped grooves, of one side of the mounting plate. According to the utility model, the second hydraulic cylinder can be conveniently mounted, fixed, dismounted and maintained, the labor intensity is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shield machines, and particularly relates to a jacking mechanism of a shield device. Background Technique

[0002] A shield machine is a tunnel boring machine using the shield method, mainly used for the excavation and construction of underground tunnels. The shield machine rotates the cutter head inside it to cut the soil body, and the cut soil body is transported to the ground or subsequent processing equipment through the soil discharging mechanism. At the same time, the shield of the shield machine plays a temporary supporting role for the excavated tunnel section, bearing the pressure of the surrounding soil layer. Under the cover of the shield, operations such as excavation, soil discharging, and lining can be carried out smoothly.

[0003] Problems existing in the prior art:

[0004] The current propulsion mechanism of the shield machine mainly consists of a group of propulsion hydraulic cylinders, which are evenly arranged on the propulsion disc. Also, because the shield machine is relatively large in size, when disassembling the hydraulic cylinders at the top of the propulsion disc, a ladder is needed to facilitate the disassembly, increasing the complexity of the disassembly. When disassembling the hydraulic cylinders at the bottom of the propulsion disc, it is necessary to bend down for disassembly, increasing the labor intensity. Content of the Utility Model

[0005] The purpose of the utility model is to provide a jacking mechanism of a shield device, which can facilitate the installation, fixation, disassembly and maintenance of the second hydraulic cylinder, reduce the labor intensity and improve the work efficiency.

[0006] The technical solution adopted by the utility model is specifically as follows:

[0007] A jacking mechanism of a shield device includes a shield body. An annular installation groove is opened on the shield body, and an installation ring is rotatably installed inside the annular installation groove. A rotating mechanism for rotating the installation ring is arranged at the inner top of the shield body. A plurality of groups of jacking components are arranged in a circumferential array on one side of the installation ring;

[0008] Each group of the jacking components includes a mounting plate fixed on one side of the installation ring. A detachable second hydraulic cylinder is arranged on one side of the mounting plate. A detachable top plate is arranged on the output shaft of the second hydraulic cylinder. T-shaped grooves are opened on both sides of the top plate and the mounting plate. Limit blocks matched with the T-shaped grooves are fixed at both ends of the second hydraulic cylinder. A mounting seat is fixed on one side of the mounting plate and between the two T-shaped grooves. Two arc-shaped clamping plates are symmetrically hinged on both sides of the mounting seat. The outer wall of the second hydraulic cylinder is clamped between the two arc-shaped clamping plates, and the other sides of the two arc-shaped clamping plates are fixed by bolts.

[0009] A telescopic guide rod fixed to the top plate is fixed on one side of the mounting seat.

[0010] The rotating mechanism includes a first installation groove formed in the inner top of the shield body and communicating with the annular installation groove. A first gear rotates inside the first installation groove, and an internal gear ring meshing with the first gear is arranged inside the installation ring. Installation rods are fixed on both sides of the first installation groove inside the shield body. A moving plate is slidably installed between the outer walls of the two installation rods. A motor is fixed on the top of the moving plate, and an output shaft of the motor is fixed with a second gear meshing with the first gear. A first hydraulic cylinder is fixed on the inner top of the shield body and on one side of the moving plate, and an output shaft of the first hydraulic cylinder is connected to one side of the moving plate.

[0011] A brake plate capable of braking the first gear is fixed on the top of the moving plate and on one side of the second gear.

[0012] Reinforcing ribs fixed to the brake plate are fixed on the top of the moving plate.

[0013] The technical effects achieved by the present utility model are as follows:

[0014] The second hydraulic cylinder provided by the present utility model, through the cooperation of the T-shaped groove, the limiting block, the mounting seat and the arc-shaped clamping plate, facilitates the installation, fixation and disassembly of the second hydraulic cylinder. The operation is simple, the labor intensity is reduced, and the installation or disassembly efficiency of the second hydraulic cylinder is improved. The rotating mechanism is provided, and through the cooperation of the motor, the second gear, the first gear and the internal gear ring, it is convenient to drive the installation ring to rotate. The installation ring can drive the jacking assembly to rotate, which is convenient to rotate the second hydraulic cylinder at a high place or a low place to a suitable position, further facilitating the installation, fixation and disassembly and maintenance of the second hydraulic cylinder, reducing the labor intensity and improving the work efficiency. Description of the Drawings

[0015] Figure 1 is the front three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is the rear three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 3 is the three-dimensional structural schematic diagram of the rotating mechanism of the present utility model;

[0018] Figure 4 is the three-dimensional structural schematic diagram of the jacking assembly of the present utility model;

[0019] Figure 5 is the sectional structural schematic diagram of the rotating mechanism of the present utility model.

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. Shield body; 2. Annular installation groove; 3. Installation ring; 4. First installation groove; 5. First gear; 6. Internal gear ring; 7. Installation rod; 8. Moving plate; 9. First hydraulic cylinder; 10. Motor; 11. Second gear; 12. Brake plate; 13. Installation plate; 14. Second hydraulic cylinder; 15. Top plate; 16. T-shaped groove; 17. Limit block; 18. Installation seat; 19. Arc-shaped clamping plate; 20. Telescopic guide rod. Detailed implementation mode

[0022] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation modes of the present utility model, and does not strictly limit the scope of protection specifically claimed by the present utility model.

[0023] As Figures 1-5 shown, a jacking mechanism for a shield equipment includes a shield body 1. An annular installation groove 2 is provided in the shield body 1. An installation ring 3 is rotatably installed inside the annular installation groove 2. A rotating mechanism for rotating the installation ring 3 is provided at the inner top of the shield body 1. A plurality of jacking components are arranged in a circumferential array on one side of the installation ring 3;

[0024] Each jacking component includes an installation plate 13 fixed on one side of the installation ring 3. A detachable second hydraulic cylinder 14 is provided on one side of the installation plate 13. A detachable top plate 15 is provided on the output shaft of the second hydraulic cylinder 14. T-shaped grooves 16 are provided on both sides of the top plate 15 and the installation plate 13. Limit blocks 17 matched with the T-shaped grooves 16 are fixed at both ends of the second hydraulic cylinder 14. An installation seat 18 is fixed on one side of the installation plate 13 and between the two T-shaped grooves 16. Two arc-shaped clamping plates 19 are symmetrically hinged on both sides of the installation seat 18. The outer wall of the second hydraulic cylinder 14 is clamped between the two arc-shaped clamping plates 19, and the other sides of the two arc-shaped clamping plates 19 are fixed by bolts; A telescopic guide rod 20 fixed to the top plate 15 is fixed on one side of the installation seat 18 to make the movement of the top plate 15 more stable.

[0025] According to the above structure, when disassembling the second hydraulic cylinder 14, unscrew the bolts to separate the two arc-shaped clamping plates 19, and then take out the limit blocks 17 from the T-shaped grooves 16 through the second hydraulic cylinder 14, which is convenient for disassembling, repairing and installing and fixing the second hydraulic cylinder 14, saving time and effort and improving work efficiency.

[0026] As Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown in the figure, the rotating mechanism includes a first installation groove 4 opened at the inner top of the shield 1 and communicating with the annular installation groove 2. A first gear 5 rotates inside the first installation groove 4. An internal gear ring 6 meshing with the first gear 5 is arranged inside the installation ring 3. Installation rods 7 are fixed on both sides of the first installation groove 4 inside the shield 1. A moving plate 8 is slidably installed between the outer walls of the two installation rods 7. A motor 10 is fixed on the top of the moving plate 8. A second gear 11 meshing with the first gear 5 is fixed on the output shaft of the motor 10. A first hydraulic cylinder 9 is fixed on the inner top of the shield 1 and on one side of the moving plate 8. The output shaft of the first hydraulic cylinder 9 is connected to one side of the moving plate 8; a brake plate 12 capable of braking the first gear 5 is fixed on the top of the moving plate 8 and on one side of the second gear 11. The first hydraulic cylinder 9 drives the moving plate 8 to move. The moving plate 8 drives the second gear 11 to disengage from the first gear 5 and drives the brake plate 12 to contact one side of the first gear 5, realizing the braking of the first gear 5, thereby preventing the installation ring 3 from rotating and improving the practicability of the equipment; a reinforcing rib fixed to the brake plate 12 is fixed on the top of the moving plate 8. The arranged reinforcing rib improves the fixing stability of the brake plate 12.

[0027] According to the above structure, start the first hydraulic cylinder 9 to drive the moving plate 8 to move. The moving plate 8 drives the second gear 11 on the motor 10 to mesh with the first gear 5. By starting the motor 10, the motor 10 drives the second gear 11 to rotate. The second gear 11 drives the first gear 5 to rotate. The first gear 5 meshes with the internal gear ring 6 to drive the installation ring 3 to rotate, facilitating the rotation of multiple groups of jacking components and rotating the jacking components to a suitable height, so as to facilitate the disassembly and replacement of the second hydraulic cylinder 14 and increase the practicability of the equipment.

[0028] The working principle of the present utility model is as follows: When disassembling the second hydraulic cylinder 14, start the first hydraulic cylinder 9 to drive the moving plate 8 to move. The moving plate 8 drives the second gear 11 on the motor 10 to mesh with the first gear 5. By starting the motor 10, the motor 10 drives the second gear 11 to rotate. The second gear 11 drives the first gear 5 to rotate. The first gear 5 meshes with the internal gear ring 6 to drive the installation ring 3 to rotate, facilitating the rotation of multiple groups of jacking components and rotating the jacking components to a suitable height. Then unscrew the bolts to separate the two arc-shaped clamping plates 19. Then take out the limit block 17 from the T-shaped groove 16 through the second hydraulic cylinder 14, which facilitates the disassembly, repair and installation and fixation of the second hydraulic cylinder 14, is relatively time-saving and labor-saving, and improves the work efficiency.

[0029] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A jacking mechanism for a shield tunneling machine, comprising a shield body (1), characterized in that: The shield body (1) is provided with an annular installation groove (2). An installation ring (3) is rotatably installed inside the annular installation groove (2). A rotating mechanism capable of rotating the installation ring (3) is arranged at the inner top of the shield body (1). A plurality of jacking assemblies are arranged in a circumferential array on one side of the installation ring (3); Each of the jacking assemblies includes a mounting plate (13) fixed to one side of the installation ring (3). A detachable second hydraulic cylinder (14) is arranged on one side of the mounting plate (13). A detachable top plate (15) is arranged on the output shaft of the second hydraulic cylinder (14). T-shaped grooves (16) are formed on both sides of the top plate (15) and the mounting plate (13). Limit blocks (17) matched with the T-shaped grooves (16) are fixed at both ends of the second hydraulic cylinder (14). A mounting seat (18) is fixed on one side of the mounting plate (13) and between the two T-shaped grooves (16). Two arc-shaped clamping plates (19) are symmetrically hinged on both sides of the mounting seat (18). The outer wall of the second hydraulic cylinder (14) is clamped between the two arc-shaped clamping plates (19), and the other sides of the two arc-shaped clamping plates (19) are fixed by bolts.

2. The jacking mechanism of a shield equipment according to claim 1, wherein: One side of the mounting seat (18) is fixed with a telescopic guide rod (20) fixed to the top plate (15).

3. The jacking mechanism of a shield equipment according to claim 1, wherein: The rotating mechanism includes a first installation groove (4) formed at the inner top of the shield body (1) and communicating with the annular installation groove (2). A first gear (5) is rotatably arranged inside the first installation groove (4). An internal gear ring (6) meshing with the first gear (5) is arranged inside the installation ring (3). Mounting rods (7) are fixed on both sides of the shield body (1) and inside the first installation groove (4). A moving plate (8) is slidably installed between the outer walls of the two mounting rods (7). A motor (10) is fixed to the top of the moving plate (8). A second gear (11) meshing with the first gear (5) is fixed to the output shaft of the motor (10). A first hydraulic cylinder (9) is fixed to the inner top of the shield body (1) and on one side of the moving plate (8). The output shaft of the first hydraulic cylinder (9) is connected to one side of the moving plate (8).

4. The jacking mechanism of a shield equipment according to claim 3, characterized in that: A brake plate (12) capable of braking the first gear (5) is fixed to the top of the moving plate (8) and on one side of the second gear (11).

5. The jacking mechanism of a shield equipment according to claim 3, characterized in that: Reinforcing ribs fixed to the brake plate (12) are fixed to the top of the moving plate (8).

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