Shield tunneling machine bin opening tool changing auxiliary device

Abstract

The utility model provides a shield tunneling machine opening tool changing auxiliary device, which relates to the technical field of shield tunneling machine tool changing and comprises a tool changing auxiliary tool, a lifting limiting plate is arranged at the bottom end of the tool changing auxiliary tool, a lifting motor is arranged at the top end of the tool changing auxiliary tool, and a lifting sleeve is fixedly arranged on an output shaft of the lifting motor. A lifting screw rod is arranged in the lifting sleeve, a limiting frame is arranged at the bottom end of the lifting limiting plate, and a transmission screw rod is arranged in the limiting frame. Through the lifting limiting plate, the lifting sleeve and the lifting screw rod, the lifting motor rotates to enable the lifting sleeve to rotate, then the lifting screw rod can stretch out and draw back in the lifting sleeve, and meanwhile under the limiting effect of the lifting limiting plate, the limiting frame can stably ascend and descend; after a hob needing to be replaced is clamped through the hob clamping block, the limiting frame is stably lifted and moved, and the situation that surrounding workers are injured due to swing of the hob when the hob is replaced in the mode can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machine tool changing, in particular to a shield machine tool changing auxiliary device for opening a chamber. Background Art

[0002] A shield machine is a tunnel boring machine that uses the shield method. The use of a shield machine can speed up the efficiency of tunnel excavation. Since the cutter group on the surface of the shield machine will produce greater friction with the stones in the underground layer when in use, it will cause wear on the cutter group. The staff needs to open the warehouse regularly to change the cutter, and a cutter changing device is needed to assist in changing the cutter.

[0003] Defects of traditional tool changing devices: Most existing tool changing devices usually use a cutter clamp to clamp the cutter to be replaced when performing auxiliary tool changing, and then use a guide chain to lift the clamp and the cutter. After that, the new cutter is loaded into the shield machine in the same way to complete the replacement. The cutter is heavy and the guide chain is a flexible connection, so it is easy to swing when transporting the cutter head, which may cause harm to the surrounding operators.

[0004] Therefore, a tool changing device that can solve the above problems is urgently needed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to solve the problem that most of the existing tool changing devices proposed in the above background technology utilize tool hob clamps and guide chains to disassemble and install the tool hobs, and the tool heads are prone to swing during transportation, which may cause harm to surrounding operators.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a shield machine opening and tool changing auxiliary device, comprising a tool changing auxiliary tool, a lifting limit plate is installed at the bottom end of the tool changing auxiliary tool, a lifting motor is installed at the top end of the tool changing auxiliary tool, and a lifting sleeve is fixedly installed on the output shaft of the lifting motor, and a lifting screw is installed inside the lifting sleeve;

[0007] A limit frame is installed at the bottom end of the lifting limit plate, and a transmission screw is installed inside the limit frame. An internal thread slider is installed on the surface of the transmission screw, and a connecting slider is fixedly installed at the bottom end of the internal thread slider, a hob clamp is fixedly installed at the bottom end of the connecting slider, and a motor box is installed at the top of the limit frame.

[0008] Preferably, a lifting handle is fixedly installed on the top of the tool changing auxiliary tool, and two groups of lifting handles are installed on the top of the tool changing auxiliary tool. A group of rectangular hole grooves matching the size of the lifting limit plate are opened at the bottom end of the tool changing auxiliary tool, and the lifting limit plate is composed of three groups of rectangles connected to each other.

[0009] Preferably, a group of circular through holes matching the size of the output shaft of the lifting motor are opened at the top of the tool changing auxiliary tool, and a group of circular hole grooves matching the size of the lifting sleeve are opened at the bottom end of the tool changing auxiliary tool, and the inner wall of the lifting sleeve is provided with a thread that meshes with the surface of the lifting screw.

[0010] Preferably, a transmission gear is fixedly mounted on the surface of the transmission screw, a limit slider is fixedly mounted on the surface of the internal thread slider, and a limit rod is inserted into the interior of the limit slider.

[0011] Preferably, two groups of transmission screws are arranged inside the limit frame, and the thread directions of the surfaces of the two groups of transmission screws are opposite to each other. A group of screw holes that mesh with the surfaces of the transmission screws are arranged inside the internal threaded slider. The two ends of the limit rod are fixedly installed on the inner walls of both sides of the limit frame, and a group of circular through holes that are compatible with the limit rod are opened inside the limit slider.

[0012] Preferably, a clamping motor is installed inside the motor box, and a transmission shaft is fixedly installed on the output shaft of the clamping motor, an output gear is fixedly installed on the bottom end of the transmission shaft, the surface of the internal threaded slider and the surface of the transmission gear are meshed with each other, and the bottom end of the lifting screw is connected to the top of the motor box.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: by providing a lifting limit plate, a lifting sleeve and a lifting screw, the lifting sleeve is rotated by utilizing the rotation of the lifting motor, and the lifting screw will then extend and retract inside the lifting sleeve, and at the same time, under the limiting action of the lifting limit plate, the limit frame will be stably lifted and lowered, and after the hob to be replaced is clamped by the hob clamp, the limit frame will be stably lifted and lowered, and replacing the hob in this way can prevent injuries to surrounding personnel caused by the swinging of the hob. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure schematic diagram provided according to the embodiment of the utility model is shown;

[0015] Figure 2 A schematic cross-sectional view of the overall structure provided according to an embodiment of the utility model is shown;

[0016] Figure 3 A schematic structural diagram of a transmission screw, an internal threaded slider and a hob clamp block provided according to an embodiment of the utility model is shown.

[0017] Legend:

[0018] 1. Tool changing auxiliary tool; 101. Lifting handle; 2. Lifting limit plate; 3. Lifting motor; 301. Lifting sleeve; 302. Lifting screw; 4. Limit frame; 401. Transmission screw; 402. Transmission gear; 403. Internal thread slider; 404. Limit slider; 405. Limit rod; 406. Connecting slider; 407. Hob clamp; 5. Motor box; 501. Clamping motor; 502. Transmission shaft; 503. Output gear. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] like Figure 1-3 As shown, in an embodiment of the utility model: a shield machine opening and tool changing auxiliary device includes a tool changing auxiliary tool 1.

[0022] In the specific operation, a lifting limit plate 2 is installed at the bottom of the tool-changing auxiliary tool 1, a lifting motor 3 is installed at the top of the tool-changing auxiliary tool 1, and a lifting sleeve 301 is fixedly installed on the output shaft of the lifting motor 3, and a lifting screw 302 is installed inside the lifting sleeve 301;

[0023] A limit frame 4 is installed at the bottom end of the lifting limit plate 2, and a transmission screw 401 is installed inside the limit frame 4, an internal thread slider 403 is installed on the surface of the transmission screw 401, and a connecting slider 406 is fixedly installed at the bottom end of the internal thread slider 403, and a hob clamp 407 is fixedly installed at the bottom end of the connecting slider 406, and a motor box 5 is installed at the top end of the limit frame 4.

[0024] Through the above technical solution, the cutter that needs to be replaced can be clamped by the cutter clamp 407, and then lifted and moved by the extension and retraction of the lifting screw 302 inside the lifting sleeve 301. The cutter can be transported and replaced in this way, which can prevent the cutter from swaying during transportation.

[0025] A lifting handle 101 is fixedly installed on the top of the tool changing auxiliary tool 1, and two groups of lifting handles 101 are installed on the top of the tool changing auxiliary tool 1. A group of rectangular hole grooves matching the size of the lifting limit plate 2 are opened at the bottom of the tool changing auxiliary tool 1. The lifting limit plate 2 is composed of three groups of rectangles that are interconnected.

[0026] Through the above technical solution, the tool changing auxiliary tool 1 and the limit frame 4 are connected by the lifting limit plate 2, so that the limit frame 4 can be limited when lifting, so that the limit frame 4 can be lifted and lowered smoothly.

[0027] A group of circular through holes matching the size of the output shaft of the lifting motor 3 are opened at the top of the tool changing auxiliary tool 1, and a group of circular hole grooves matching the size of the lifting sleeve 301 are opened at the bottom of the tool changing auxiliary tool 1. The inner wall of the lifting sleeve 301 is provided with threads that mesh with the surface of the lifting screw 302.

[0028] Through the above technical solution, the lifting motor 3 can drive the lifting sleeve 301 to rotate when it rotates, and at the same time, as the lifting sleeve 301 rotates, the lifting screw 302 can be telescopically moved inside it.

[0029] A transmission gear 402 is fixedly mounted on the surface of the transmission screw rod 401 , a limit slider 404 is fixedly mounted on the surface of the internal thread slider 403 , and a limit rod 405 is inserted into the limit slider 404 .

[0030] There are two groups of transmission screws 401 inside the limit frame 4, and the thread directions of the surfaces of the two groups of transmission screws 401 are opposite to each other. A group of screw holes that mesh with the surfaces of the transmission screws 401 are arranged inside the internal threaded slider 403. The two ends of the limit rod 405 are fixedly installed on the inner walls on both sides of the limit frame 4. A group of circular through holes that are compatible with the limit rod 405 are opened inside the limit slider 404.

[0031] A clamping motor 501 is installed inside the motor box 5, and a transmission shaft 502 is fixedly installed on the output shaft of the clamping motor 501, an output gear 503 is fixedly installed on the bottom end of the transmission shaft 502, the surface of the internal threaded slider 403 and the surface of the transmission gear 402 are meshed with each other, and the bottom end of the lifting screw 302 is connected to the top of the motor box 5.

[0032] Through the above technical solution, the clamping motor 501 can be rotated while driving the transmission screw 401 to rotate inside the limit frame 4, so that the two sets of roller clamps 407 can be moved. After the two sets of roller clamps 407 are moved close to each other, the roller clamps 407 can be used to clamp and fix the roller that needs to be replaced.

[0033] In summary, the working principle of the utility model is as follows: when the shield machine cutter needs to be pulled out of the cutter box for replacement, the lifting sleeve 301 can be rotated by rotating the lifting motor 3, and the lifting screw 302 can be extended from the inside of the lifting sleeve 301 by rotating the lifting sleeve 301. As the lifting screw 302 extends, the limit frame 4 will be lowered, so that the cutter clamp 407 can be moved to the cutter that needs to be replaced, and the transmission screw 401 can be rotated by rotating the clamping motor 501. When the transmission screw 401 rotates, the internal thread slider 403 slides, and by sliding the two sets of internal threaded sliders 403 at the same time, the two sets of hob clamps 407 move closer to each other, and the hob that needs to be replaced can be clamped and fixed by the hob clamp 407. After the hob is clamped, the lifting screw 302 is retracted into the inside of the lifting sleeve 301 by the rotation of the lifting motor 3, which will make the limit frame 4 rise, so that the hob can be lifted up. In this way, the hob that needs to be replaced can be lifted and transported, which can prevent the hob from swaying during the transportation process and causing injuries to the surrounding staff.

[0034] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A shield machine opening and tool changing auxiliary device, comprising a tool changing auxiliary tool, characterized in that: A lifting limit plate is installed at the bottom of the tool-changing auxiliary tool, a lifting motor is installed at the top of the tool-changing auxiliary tool, and a lifting sleeve is fixedly installed on the output shaft of the lifting motor, and a lifting screw is installed inside the lifting sleeve; A limit frame is installed at the bottom end of the lifting limit plate, and a transmission screw is installed inside the limit frame. An internal thread slider is installed on the surface of the transmission screw, and a connecting slider is fixedly installed at the bottom end of the internal thread slider, a hob clamp is fixedly installed at the bottom end of the connecting slider, and a motor box is installed at the top end of the limit frame.

2. A shield machine opening and tool changing auxiliary device according to claim 1, characterized in that: A lifting handle is fixedly installed on the top of the tool changing auxiliary tool, and two groups of lifting handles are installed on the top of the tool changing auxiliary tool. A group of rectangular hole grooves matching the size of the lifting limit plate are opened at the bottom of the tool changing auxiliary tool. The lifting limit plate is composed of three groups of rectangles connected to each other.

3. The shield machine opening and tool changing auxiliary device according to claim 1, characterized in that: A group of circular through holes matching the size of the output shaft of the lifting motor are opened at the top of the tool changing auxiliary tool, and a group of circular hole grooves matching the size of the lifting sleeve are opened at the bottom of the tool changing auxiliary tool. The inner wall of the lifting sleeve is provided with a thread that meshes with the surface of the lifting screw.

4. The shield machine opening and tool changing auxiliary device according to claim 1, characterized in that: A transmission gear is fixedly mounted on the surface of the transmission screw, a limit slider is fixedly mounted on the surface of the internal thread slider, and a limit rod is inserted into the interior of the limit slider.

5. The shield machine opening and tool changing auxiliary device according to claim 4, characterized in that: There are two groups of transmission screws arranged inside the limit frame, and the thread directions of the two groups of transmission screw surfaces are opposite to each other. A group of screw holes meshing with the transmission screw surfaces are arranged inside the internal thread slider. The two ends of the limit rod are fixedly installed on the inner walls of both sides of the limit frame, and a group of circular through holes matching the limit rod are opened inside the limit slider.

6. The shield machine opening and tool changing auxiliary device according to claim 4, characterized in that: A clamping motor is installed inside the motor box, and a transmission shaft is fixedly installed on the output shaft of the clamping motor. An output gear is fixedly installed on the bottom end of the transmission shaft. The surface of the internal threaded slider and the surface of the transmission gear are meshed with each other, and the bottom end of the lifting screw is connected to the top end of the motor box.

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