CN211314214U

CN211314214U - Protective cutter for shield machine protective shell

Info

Publication number: CN211314214U
Application number: CN201922215958.3U
Authority: CN
Inventors: 陈晓晓
Original assignee: Shandong Tuoda Engineering Equipment Co ltd
Current assignee: Shandong Tuoda Engineering Equipment Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-08-21
Anticipated expiration: 2029-12-12

Abstract

The utility model belongs to the technical field of the shield constructs the machine, especially, a protection cutter for shield constructs machine protective housing, when punching to current shield constructs the machine, because its protective housing of shield constructs the machine and compares the blade disc and should go out a part, so its shell can bear the frictional force that is considerable with outside rock when changeing the hole, and long-term in the past undoubtedly make its shell wear and tear can be quite serious, reduced its life's problem, the scheme is put forward now, it includes the protective housing, be provided with the blade disc on the protective housing, the protective housing outside annular is arranged fixed mounting and is had a plurality of buffing pads, seted up the cushion chamber on the buffing pad, fixed mounting has two montants of symmetry setting in the cushion chamber; the utility model discloses at the in-process of operation, utilize the protection cutter to protect the protective housing on the one hand, reduce the impact force of its rock to the protective housing, a plurality of buffer structure that on the other hand set up can cushion the protection to the impact force that the protection cutter bore.

Description

Protective cutter for shield machine protective shell

Technical Field

The utility model relates to a shield constructs quick-witted technical field, especially relates to a protection cutter that is used for shield to construct quick-witted protective housing.

Background

The shield machine has been known for nearly 200 years, starting in the uk and developing in japan and germany. For more than 40 years, through the key technologies in the earth pressure balance type and muddy water type shield tunneling machines, such as effective sealing of the shield tunneling machines, the stability of an excavation surface is ensured, the rise and the subsidence of the earth surface are controlled within a specified range, the service life of a cutter is prolonged, and the cutter is replaced under the sealing condition, so that the shield tunneling machines, particularly the earth pressure balance type and muddy water type shield tunneling machines, are developed rapidly in Japan due to rapid economic development and actual engineering requirements. The German shield machine technology has the unique features, particularly in the underground construction process, the cutter on the cutter head is replaced on the premise of ensuring sealing and under the condition of air pressure up to 0.3MPa, so that the one-time tunneling length of the shield machine is improved. Germany has also developed the replacement of worn tools from the atmospheric space inside the large diameter cutterhead under sealed conditions.

When the existing shield machine punches, a protective shell of the shield machine is higher than a cutter head by a part, so that the shell can bear considerable friction force with external rocks when the hole is rotated, the shell is seriously abraded for a long time and the service life of the shell is shortened, and therefore a protective cutter for the protective shell of the shield machine is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shield structure machine that exists among the prior art when punching, because the blade disc of comparing of its protective housing that shields the machine will exceed partly, so its shell can bear the frictional force considerable with outside rock when changeing the hole, makes its shell wearing and tearing can be fairly serious for a long time in the past undoubtedly, has reduced its life's shortcoming, and the protection cutter who is used for shield structure machine protective housing who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a protection cutter for a shield machine protection shell comprises a protection shell, wherein a cutter head is arranged on the protection shell, a plurality of buffer seats are annularly arranged and fixedly installed on the outer side of the protection shell, a buffer cavity is formed in each buffer seat, two symmetrically-arranged vertical rods are fixedly installed in each buffer cavity, one side, close to each other, of each vertical rod is connected with the same first sliding plate in a sliding mode, two symmetrically-arranged supporting rods are fixedly installed at the top of each first sliding plate, the tops of the two supporting rods extend to the upper side of each buffer seat and are fixedly provided with the same protection cutter, one side, close to each other, of each vertical rod is connected with the same second sliding plate in a sliding mode, two symmetrically-arranged elastic seats are fixedly installed at the bottom of each elastic seat, an elastic groove is formed in the bottom of each elastic seat, a buffer air bag is fixedly installed on the inner wall of the, the bottom of the sliding plate extends to the lower portion of the elastic seat and is fixedly connected with the top of the second sliding plate, a plurality of shock absorption seats are fixedly mounted on the inner wall of the bottom of the buffer cavity, the top of each shock absorption seat is slidably connected with a pressing plate, the top of each pressing plate is fixedly connected with the bottom of the second sliding plate, a second buffer spring is sleeved on the outer side of each pressing plate, the top of each second buffer spring is fixedly connected with the bottom of the corresponding second sliding plate, and the bottom of each second buffer spring is fixedly connected with the top of the corresponding shock absorption seat.

Preferably, the equal fixed mounting in both sides of first slide has the slider, and the equal fixed mounting in one side that two montants are close to each other has the slide rail, and two sliders respectively with two slide rail sliding connection, utilize slider and slide rail can not take place the skew when making first slide longitudinal movement.

Preferably, the buffering air bag is provided with a buffering cavity, a first buffering spring is fixedly mounted in the buffering cavity, and the elasticity of the buffering air bag can be improved by the aid of the first buffering spring.

Preferably, the inner walls of both sides of the elastic groove are fixed with stoppers which are positioned below the top of the sliding plate, and the sliding plate is prevented from sliding out of the elastic groove by the stoppers.

Preferably, be provided with the air cavity on the shock absorber seat, the bottom of pressure plate extends to the air cavity and fixed mounting has the gasket, and the sealed sliding connection of gasket and air cavity, a plurality of exhaust holes have all been seted up on the both sides inner wall of air cavity, equal fixed mounting has the dog on the both sides inner wall of air cavity, the dog is located the top in exhaust hole, when pressure plate moves down, can pass through the air in the gasket compressed gas cavity, utilizes the damping of air down, can cushion pressure plate.

The utility model discloses in, through being provided with a plurality of protection cutters in the protective housing outside, can cushion the protection to the impact force of protective housing to outside rock, the protection cutter can carry out the breakage to the rock simultaneously, has carried out and has improved the shield structure machine speed of punching.

The utility model discloses in, when outside rock forms the impact force to the protection cutter, can press the protection cutter to remove in the buffer seat, and the protection cutter promotes when first slide removes through the bracing piece, sliding plate compression buffering gasbag can be pressed to first slide, utilize the buffering gasbag to carry out preliminary buffering to the protection cutter, and when promoting the second slide and remove downwards, can compress second buffer spring on the one hand, on the other hand then can promote the pressure board and move down the time, can pass through the air in the gasket compressed gas intracavity, utilize under the damping of air, can cushion the pressure board, and then can cushion the protection cutter.

The utility model discloses at the in-process of operation, utilize the protection cutter to protect the protective housing on the one hand, reduce the impact force of its rock to the protective housing, a plurality of buffer structure that on the other hand set up can cushion the protection to the impact force that the protection cutter bore.

Drawings

Fig. 1 is a schematic front view of a protection cutter for a shield machine protection shell according to the present invention;

fig. 2 is a schematic sectional structural view of the buffer seat of fig. 1 for a protection tool of a shield casing of a shield tunneling machine according to the present invention;

fig. 3 is an enlarged schematic structural view of a portion a of fig. 2 of a protection cutter for a shield machine protection shell according to the present invention;

fig. 4 is the utility model provides a sectional structure schematic diagram of a cushion socket for protecting cutter of shield constructs quick-witted protecting crust.

In the figure: the device comprises a protective shell 1, a cutter head 2, a buffer seat 3, a protective cutter 4, a buffer cavity 5, a vertical rod 6, a first sliding plate 7, a supporting rod 8, an elastic seat 9, an elastic groove 10, a buffer air bag 11, a first buffer spring 12, a sliding plate 13, a second sliding plate 14, a shock absorption seat 15, a pressing plate 16, a second buffer spring 17, an air cavity 18, a sealing piece 19, a stop 20 and an exhaust hole 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-4, a protection cutter for a shield machine protection shell comprises a protection shell 1, a cutter head 2 is arranged on the protection shell 1, a plurality of buffer seats 3 are annularly arranged and fixedly installed outside the protection shell 1, buffer cavities 5 are formed on the buffer seats 3, two symmetrically arranged vertical rods 6 are fixedly installed in the buffer cavities 5, one side, close to each other, of each vertical rod 6 is slidably connected with a first sliding plate 7, two symmetrically arranged support rods 8 are fixedly installed at the top of the first sliding plate 7, the tops of the two support rods 8 extend to the upper side of the buffer seats 3 and are fixedly provided with a protection cutter 4, one side, close to each other, of each vertical rod 6 is slidably connected with a second sliding plate 14, two symmetrically arranged elastic seats 9 are fixedly installed at the bottom of the first sliding plate 7, an elastic groove 10 is formed at the bottom of each elastic seat 9, and a buffer air bag 11 is fixedly installed on the inner wall, bottom fixedly connected with sliding plate 13 of buffering gasbag 11, and sliding plate 13 and elastic groove 10 sliding connection, the bottom of sliding plate 13 extend to the below of elastic seat 9 and with the top fixed connection of second slide 14, fixed mounting has a plurality of shock attenuation seats 15 on the bottom inner wall of cushion chamber 5, the top sliding connection of shock attenuation seat 15 has pressure board 16, and the top of pressure board 16 and the bottom fixed connection of second slide 14, the outside cover of pressure board 16 is equipped with second buffer spring 17, the top of second buffer spring 17 and the bottom fixed connection of second slide 14, the bottom of second buffer spring 17 and the top fixed connection of shock attenuation seat 15.

Example two

The improvement is further based on the first embodiment: the two sides of the first sliding plate 7 are fixedly provided with sliding blocks, one sides of the two vertical rods 6 close to each other are fixedly provided with sliding rails, the two sliding blocks are respectively connected with the two sliding rails in a sliding manner, and the sliding blocks and the sliding rails are utilized to prevent the first sliding plate 7 from shifting when moving longitudinally; a buffer cavity is formed in the buffer air bag 11, a first buffer spring 12 is fixedly installed in the buffer cavity, and the elasticity of the buffer air bag 11 can be improved by utilizing the first buffer spring 12; stoppers are fixed on the inner walls of the two sides of the elastic groove 10 and positioned below the top of the sliding plate 13, and the sliding plate 13 is prevented from sliding out of the elastic groove 10 by the stoppers; be provided with air cavity 18 on damper base 15, the bottom of pressure board 16 extends to in air cavity 18 and fixed mounting has gasket 19, and gasket 19 and the sealed sliding connection of air cavity 18, a plurality of exhaust holes 21 have all been seted up on the both sides inner wall of air cavity 18, equal fixed mounting has dog 20 on the both sides inner wall of air cavity 18, dog 20 is located exhaust hole 21's top, when pressure board 16 moves down, can be through the air in the gasket 19 compression air cavity 18, utilize under the damping of air, can cushion pressure board 16.

In the embodiment, when in use, the structure of the protective shell 1 is improved to a certain degree, and a corresponding functional adaptive component is added to the protective shell, so that the practical use effect of the protective shell is enhanced, and the protective shell is characterized in that the protective shell 1 is externally provided with a plurality of protective cutters 4, so that the impact force of external rocks on the protective shell 1 can be buffered and protected, the protective cutters 4 can crush the rocks, so that the punching speed of the shield machine can be increased, when the external rocks form the impact force on the protective cutters 4, the protective cutters 4 can be pressed to move into the buffer seat 3, and when the protective cutters 4 push the first sliding plate 7 to move through the supporting rods 8, the first sliding plate 7 can press the sliding plate 13 to compress the buffer air bags 11, the protective cutters 4 can be primarily buffered by using the buffer air bags 11, and when the second sliding plate 14 is pushed to move downwards, on one hand, the second buffer springs 17 can be compressed, on the other hand, when the pressing plate 16 is pushed to move downwards, the air in the air cavity 18 is compressed through the sealing sheet 19, and the pressing plate 16 can be buffered under the damping of the air, so that the protection tool 4 can be buffered and protected.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A protection cutter for a shield machine protection shell comprises a protection shell (1) and is characterized in that a cutter head (2) is arranged on the protection shell (1), a plurality of buffer seats (3) are annularly arranged and fixedly installed on the outer side of the protection shell (1), a buffer cavity (5) is formed in each buffer seat (3), two vertical rods (6) which are symmetrically arranged are fixedly installed in each buffer cavity (5), one side, close to each other, of each vertical rod (6) is connected with a same first sliding plate (7) in a sliding mode, two supporting rods (8) which are symmetrically arranged are fixedly installed at the top of each first sliding plate (7), the tops of the two supporting rods (8) extend to the upper side of each buffer seat (3) and are fixedly provided with a same protection cutter (4), one side, close to each other, of the two vertical rods (6) is connected with a same second sliding plate (14, the damping device is characterized in that two elastic seats (9) which are symmetrically arranged are fixedly installed at the bottom of the first sliding plate (7), an elastic groove (10) is formed in the bottom of each elastic seat (9), a buffering air bag (11) is fixedly installed on the inner wall of the top of each elastic groove (10), a sliding plate (13) is fixedly connected to the bottom of each buffering air bag (11), the sliding plates (13) are slidably connected with the elastic grooves (10), the bottom of each sliding plate (13) extends to the lower portion of the corresponding elastic seat (9) and is fixedly connected with the top of the corresponding second sliding plate (14), a plurality of damping seats (15) are fixedly installed on the inner wall of the bottom of the corresponding buffering cavity (5), a pressing plate (16) is slidably connected to the top of each damping seat (15), the top of the pressing plate (16) is fixedly connected with the bottom of the corresponding second sliding plate (14), and a second buffering spring (17) is sleeved on the outer side, the top of the second buffer spring (17) is fixedly connected with the bottom of the second sliding plate (14), and the bottom of the second buffer spring (17) is fixedly connected with the top of the shock absorption seat (15).

2. The protection tool for the shield tunneling machine protection shell according to claim 1, wherein sliding blocks are fixedly mounted on both sides of the first sliding plate (7), sliding rails are fixedly mounted on the side, close to each other, of the two vertical rods (6), and the two sliding blocks are respectively connected with the two sliding rails in a sliding manner.

3. The protection cutter for the shield machine protection shell according to claim 1, wherein a buffer cavity is formed in the buffer air bag (11), and a first buffer spring (12) is fixedly installed in the buffer cavity.

4. The protective cutter for a shield tunneling machine protective shell according to claim 1, wherein stoppers are fixed to both inner walls of the elastic groove (10) and positioned below the top of the sliding plate (13).

5. The protection cutter for the shield tunneling machine protection shell according to claim 1, wherein an air cavity (18) is arranged on the shock absorption seat (15), the bottom of the pressing plate (16) extends into the air cavity (18) and is fixedly provided with a sealing sheet (19), the sealing sheet (19) is connected with the air cavity (18) in a sealing and sliding manner, a plurality of exhaust holes (21) are formed in the inner walls of two sides of the air cavity (18), a stop block (20) is fixedly arranged on the inner walls of two sides of the air cavity (18), and the stop block (20) is positioned above the exhaust holes (21).