CN210977487U

CN210977487U - Central cutter of shield machine

Info

Publication number: CN210977487U
Application number: CN201921766352.2U
Authority: CN
Inventors: 王铭泽
Original assignee: Nanjing Chengdun Heavy Industry Machinery Manufacturing Co ltd
Current assignee: Nanjing Chengdun Heavy Industry Machinery Manufacturing Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-10
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a shield constructs quick-witted center cutter, concretely relates to shield constructs quick-witted field, including the blade disc, the inside edge fixed mounting of blade disc has the accessory cover, the inside fixed mounting of blade disc has the joint cover that is located accessory cover inner circle, the inner circle fixed mounting of joint cover has the installed part, the positive fixed mounting of installed part has the fixed axle, the recess with fixed axle looks adaptation is seted up in the front of installed part, the outside fixed cover of fixed axle is equipped with the loop bar. The utility model discloses utilizing the bolt to pass through the screw hole and installing the blade disc at the top that the shield constructs the machine, then installing each subassembly, starting the shield structure machine after that, whole blade disc rotates this moment, is located the positive rotation edge sword of protection dish and carries out the rubble, and whole protection dish is taken the initiative, utilizes the vibrations of stay cord spring buffering joint cover this moment, very big reduction whole blade disc receive the harm of external vibrations at the operation in-process, increased the device's life.

Description

Central cutter of shield machine

Technical Field

The utility model relates to a shield constructs quick-witted technical field, more specifically says, the utility model relates to a shield constructs quick-witted center cutter.

Background

At present, in the construction of underground engineering, the application of the shield tunneling machine is more and more extensive, and the cutter head device is used as one of key parts of the shield tunneling machine, so that the performance and the efficiency of the shield tunneling machine can be directly influenced. The center cutter is used as a cutter at the foremost end of the shield tunneling machine, and the service life of the center cutter plays a very important role in the whole cutter head system. The service life of the center knife is directly related to the structural form and the installation method of the center knife.

The existing cutter head is installed and screwed up or directly welded through bolts, once the processing mode is broken, the whole central cutter needs to be replaced, and the main bearing point of the whole shield machine in the control process is the central cutter, so that the shock resistance and the wear resistance of the central cutter are very important, and the existing shield machine does not have the effects.

Therefore, the central cutter of the shield machine, which is convenient to disassemble and assemble and has long service life, is urgently needed to be provided.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a shield constructs quick-witted center cutter, utilize the bolt to pass through the screw hole and install the blade disc at the top that the shield constructs the machine, then install each subassembly, start the shield structure machine after that, whole blade disc rotates this moment, it carries out the rubble to be located the positive rotation edge sword of protection disc, whole protection disc is taken care of, utilize the vibrations of stay cord spring buffering joint cover this moment, very big reduction whole blade disc receives the harm of external vibrations at the operation in-process, the device's life has been increased, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: including the blade disc, the inside edge fixed mounting of blade disc has the accessory cover, the inside fixed mounting of blade disc has the joint cover that is located accessory cover inner circle, the inner circle fixed mounting of joint cover has the installed part, the positive fixed mounting of installed part has the fixed axle, the recess with fixed axle looks adaptation is seted up in the front of installed part, the fixed cover in outside of fixed axle is equipped with the loop bar, the bottom movable sleeve of loop bar is equipped with the buffer beam, the bottom fixed mounting of buffer beam has the base, the bottom fixed mounting of base has the inner disc, the middle part fixed mounting of inner disc has the center plate, the material gathering hole has been seted up at the middle part of center plate, the outside joint of joint cover has the protection dish that is located the blade disc middle part, the positive edge fixed mounting of protection dish and rotation edge sword.

In a preferred embodiment, the edge of the cutter head is integrally formed with a mounting plate, and a threaded hole is formed in the mounting plate.

In a preferred embodiment, a pull rope spring is movably sleeved outside the buffer rod, and two ends of the pull rope spring are fixedly connected with the bottom surface of the sleeve rod and the top surface of the base respectively.

In a preferred embodiment, the number of mountings is five, and the five mountings are evenly distributed between the clamping sleeve and the inner disc.

In a preferred embodiment, the edge of the protection disk is integrally formed, and the inside of the clamping sleeve is provided with a fixing groove matched with the clamping sleeve.

In a preferred embodiment, the number of the mounting discs is six, and the six mounting discs are uniformly distributed on the edge of the cutter disc.

In a preferred embodiment, the number of the accessory sleeves is several, and the several accessory sleeves are connected with each other through a lead and a fixing steel wire.

In a preferred embodiment, one end of the groove is open, and the other end of the groove is semicircular groove-shaped.

The utility model discloses a technological effect and advantage:

1. the utility model discloses utilizing the bolt to pass through the screw hole and installing the blade disc at the top that the shield constructs the machine, then installing each subassembly, starting the shield structure machine after that, whole blade disc rotates this moment, is located the positive rotation edge sword of protection dish and carries out the rubble, and whole protection dish is taken the initiative, utilizes the vibrations of stay cord spring buffering joint cover this moment, very big reduction whole blade disc receive the harm of external vibrations at the operation in-process, increased the device's life.

2. The utility model discloses at the in-process of actually operating, in case the edge sword of appearing rotating collapses when bad, only need not hard up fixed axle, will be located outside protection disc and break away from a new protection disc of change from the inside of joint cover, whole change process is simple and convenient, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the external structure of fig. 1 according to the present invention.

Fig. 3 is a schematic structural diagram of a in fig. 1 according to the present invention.

Fig. 4 is a schematic structural view of the protection disk of the present invention.

The reference signs are: 1. a cutter head; 2. mounting a disc; 3. a threaded hole; 4. an accessory sleeve; 5. a clamping sleeve; 6. a mounting member; 7. a groove; 8. a fixed shaft; 9. a loop bar; 10. a buffer rod; 11. a pull cord spring; 12. a base; 13. an inner disc; 14. a central disk; 15. a material collecting hole; 16. a protection disk; 17. the edge knife is rotated.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the accompanying drawings 1-4, the cutter comprises a cutter head 1, an accessory sleeve 4 is fixedly arranged at the inner edge of the cutter head 1, a clamping sleeve 5 positioned at the inner ring of the accessory sleeve 4 is fixedly arranged inside the cutter head 1, an installation part 6 is fixedly arranged at the inner ring of the clamping sleeve 5, a fixed shaft 8 is fixedly arranged on the front surface of the installation part 6, a groove 7 matched with the fixed shaft 8 is formed in the front surface of the installation part 6, a sleeve rod 9 is fixedly sleeved outside the fixed shaft 8, a buffer rod 10 is movably sleeved at the bottom of the sleeve rod 9, a base 12 is fixedly arranged at the bottom of the buffer rod 10, an inner disc 13 is fixedly arranged at the bottom of the base 12, a central disc 14 is fixedly arranged at the middle part of the inner disc 13, a material collecting hole 15 is formed in the middle part of the central disc 14, and a protection disc 16 positioned at the middle part of, the edge of the front surface of the protection disc 16 is fixedly provided with an edge knife 17;

the edge of the cutter head 1 is integrally formed with a mounting disc 2, a threaded hole 3 is arranged in the mounting disc 2, a pull rope spring 11 is movably sleeved outside the buffer rod 10, two ends of the pull rope spring 11 are respectively and fixedly connected with the bottom surface of the loop bar 9 and the top surface of the base 12, the number of the mounting pieces 6 is five, and five mountings 6 are uniformly distributed between the clamping sleeve 5 and the inner disc 13, the edge of the protective disc 16 is integrally formed 161, the clamping sleeve 5 is internally provided with fixing grooves matched with 161, the number of the mounting discs 2 is six, the six installation discs 2 are evenly distributed at the edge of the cutter head 1, the number of the accessory sleeves 4 is a plurality, and a plurality of accessory sleeves 4 are connected with each other through a wire and a fixed steel wire, one end of the groove 7 is open, and the other end of the groove 7 is in the shape of a semicircular groove.

The implementation mode is specifically as follows: the cutter head 1 is installed at the top of the shield tunneling machine through the threaded hole 3 by using a bolt, then each component is installed, then the shield tunneling machine is started, at the moment, the whole cutter head 1 rotates, the rotating edge cutter 17 positioned on the front surface of the protection disc 16 breaks stones, the whole protection disc 16 moves, at the moment, the vibration of the clamping sleeve 5 is relieved by using the stay cord spring 11, the damage of the whole cutter head 1 caused by external vibration in the operation process is greatly reduced, and the service life of the device is prolonged; in the actual operation process, once the rotating edge cutter 17 is broken, only the fixing shaft 8 needs to be loosened, the protection disc 16 positioned outside is separated from the inside of the clamping sleeve 5, and a new protection disc 16 is replaced, so that the whole replacement process is simple and convenient, and the practicability is high.

The utility model discloses the theory of operation:

at first utilize the bolt to install blade disc 1 at the top of shield structure machine through screw hole 3, then each subassembly is installed, start the shield structure machine after that, whole blade disc 1 rotates this moment, be located the positive rotation edge sword 17 of protection disc 16 and carry out the rubble, whole protection disc 16 is happy, utilize stay cord spring 11 to relieve the vibrations of joint sleeve 5 this moment, thereby alleviate the vibrations of protection disc 16, in case when the rotation edge sword 17 collapses to appear, only need become flexible fixed axle 8, the protection disc 16 that will be located outside breaks away from the inside of joint sleeve 5 and changes a new protection disc 16, can.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a shield constructs quick-witted center cutter, includes blade disc (1), its characterized in that: the edge of the interior of the cutter head (1) is fixedly provided with an accessory sleeve (4), the interior of the cutter head (1) is fixedly provided with a clamping sleeve (5) positioned at the inner ring of the accessory sleeve (4), the inner ring of the clamping sleeve (5) is fixedly provided with an installation part (6), the front of the installation part (6) is fixedly provided with a fixed shaft (8), the front of the installation part (6) is provided with a groove (7) matched with the fixed shaft (8), the exterior of the fixed shaft (8) is fixedly sleeved with a loop bar (9), the bottom of the loop bar (9) is movably sleeved with a buffer rod (10), the bottom of the buffer rod (10) is fixedly provided with a base (12), the bottom of the base (12) is fixedly provided with an inner disc (13), the middle of the inner disc (13) is fixedly provided with a central disc (14), and the middle of the central disc (14) is provided with a material collecting, the outer clamping of the clamping sleeve (5) is provided with a protection disc (16) positioned in the middle of the cutter head (1), and the edge of the front surface of the protection disc (16) is fixedly installed and rotates an edge cutter (17).

2. The central cutter of the shield tunneling machine of claim 1, wherein: the edge of the cutter head (1) is integrally formed with a mounting disc (2), and a threaded hole (3) is formed in the mounting disc (2).

3. The central cutter of the shield tunneling machine of claim 1, wherein: the outer portion of the buffer rod (10) is movably sleeved with a pull rope spring (11), and two ends of the pull rope spring (11) are fixedly connected with the bottom surface of the sleeve rod (9) and the top surface of the base (12) respectively.

4. The central cutter of the shield tunneling machine of claim 1, wherein: the number of the mounting pieces (6) is five, and the five mounting pieces (6) are uniformly distributed between the clamping sleeve (5) and the inner disc (13).

5. The central cutter of the shield tunneling machine of claim 1, wherein: the edge of the protection disc (16) is integrally formed with a fixing groove (161), and the clamping sleeve (5) is internally provided with a fixing groove matched with the fixing groove (161).

6. The central cutter of the shield tunneling machine of claim 2, wherein: the quantity of mounting disc (2) is six, and six mounting disc (2) evenly distributed is at the edge of blade disc (1).

7. The central cutter of the shield tunneling machine of claim 2, wherein: the number of the accessory sleeves (4) is a plurality, and the accessory sleeves (4) are connected with each other through wires and fixed steel wires.

8. The central cutter of the shield tunneling machine of claim 2, wherein: one end of the groove (7) is open, and the other end of the groove (7) is semicircular groove-shaped.