Efficient ventilation cooling system of shield tunneling machine

Abstract

The utility model provides an efficient ventilation cooling system of a shield tunneling machine, which relates to the technical field of shield tunneling machines, and comprises a shield tunneling machine main body, the rear end of the shield tunneling machine main body is connected with a rear cover, the interior of the rear cover is annularly connected with a bolt, and the interior of the shield tunneling machine main body close to the rear cover is provided with an automatic ventilation cooling assembly. The automatic ventilation cooling assembly comprises a fixed cover, a bearing is connected to the surface of the fixed cover, a rotating cover is connected to the surface of the bearing, disc teeth are arranged on the surface of the rotating cover, and a motor is connected to the inner bottom, close to the disc teeth, of the shield tunneling machine body. According to the shield tunneling machine, when the internal temperature of the shield tunneling machine body is high, the PLC can automatically start the motor to enable the rotating cover to rotate, so that hot air is exhausted through the slotted hole between the rotating cover and the fixed cover, after the shield tunneling machine is used, the rotating cover can automatically rotate to the position matched with the fixed cover, sealing is achieved, dust is prevented from entering the shield tunneling machine, and the shield tunneling machine is safe and reliable. And the heat dissipation effect of the shield tunneling machine main body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shield machine technical field especially relates to a shield machine high -efficient ventilation cooling system. BACKGROUND

[0002] The working principle of the shield machine is simply speaking, it is through the rotation of the heading head and the blade on the cutter head to cut the soil layer, and then the cut soil layer is conveyed to the soil conveying device behind by the screw conveyor, and finally the soil layer is transported out of the tunnel.

[0003] The shield machine is a special engineering machinery for tunneling, which needs to output a large amount of power and energy during the working process. Therefore, the shield machine will generate a large amount of heat and waste heat during operation. In order to avoid overheating of the machine and affect its normal work, even cause machine damage or safety accident, the internal heat dissipation of the shield machine must be effective, and the common heat dissipation mechanism is usually water cooling circulation system or radiator for heat dissipation, but such heat dissipation prevention is easy to cause dust into the shield machine, the entry of dust into the internal will not only affect the heat dissipation effect, but also may cause damage to the internal components of the shield machine, even cause safety accident.

[0004] Therefore, we propose a new type of shield machine high -efficient ventilation cooling system. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at solving the problem that the common heat dissipation mechanism in the prior art is usually water cooling circulation system or radiator for heat dissipation, but such heat dissipation prevention is easy to cause dust into the shield machine, the entry of dust into the internal will not only affect the heat dissipation effect, but also may cause damage to the internal components of the shield machine, even cause safety accident.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme: a shield machine high -efficient ventilation cooling system, including shield machine main part, the rear end of shield machine main part is connected with rear cover, the inside annular connection of rear cover has bolt, the inside of shield machine main part close to rear cover is provided with automatic ventilation cooling assembly, the surface of fixed cover is connected with bearing, the surface of bearing is connected with rotating cover, the surface of rotating cover is provided with disc tooth, the inner bottom of shield machine main part close to disc tooth is connected with motor, the output end of motor is connected with gear, the one side of exhaust fan is connected with PLC controller.

[0007] Further, the PLC controller is electrically connected with the external power supply through the control switch, and the PLC controller is electrically connected with the motor and the exhaust fan.

[0008] Further, the position and size of the gear are matched with the position and size of the disc tooth, and the gear and the disc tooth are connected in meshing.

[0009] Further, the position of the inner slot hole of the fixed cover is matched with the position of the inner slot hole of the rotating cover.

[0010] Further, the shield machine body is connected with a dustproof and heat dissipation assembly on one side, and the dustproof and heat dissipation assembly comprises a heat dissipation fan.

[0011] Further, the outer surface of the shield machine body is connected with a frame near the heat dissipation fan, and a dustproof net is arranged in the frame.

[0012] Further, the both sides of the dustproof net are connected with magnetic blocks, and the both sides of the frame are connected with magnets.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that,

[0014] 1、 the utility model discloses a shield machine body, when the internal temperature is higher, PLC controller will start motor and make the rotating cover rotate, so that the slot hole between the rotating cover and the fixed cover carries out hot gas exhaust, after use, the rotating cover will automatically rotate to the position matched with the fixed cover, realizes the sealing, prevents the dust from entering the inside, improves the heat dissipation effect of the shield machine body.

[0015] 2、 the utility model discloses a shield machine body, when the internal temperature is higher, PLC controller will start motor and make the rotating cover rotate, so that the slot hole between the rotating cover and the fixed cover carries out hot gas exhaust, after use, the rotating cover will automatically rotate to the position matched with the fixed cover, realizes the sealing, prevents the dust from entering the inside, improves the heat dissipation effect of the shield machine body. DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of a shield machine efficient ventilation cooling system is provided for the utility model;

[0017] Figure 2 Another angle three-dimensional structure schematic diagram of a shield machine efficient ventilation cooling system is provided for the utility model;

[0018] Figure 3 A partial explosion structure schematic diagram of a shield machine efficient ventilation cooling system is provided for the utility model;

[0019] Figure 4 A frame explosion structure schematic diagram of a shield machine efficient ventilation cooling system is provided for the utility model.

[0020] Legend: 1. Main body of the tunnel boring machine; 2. Rear cover; 3. Bolt; 4. Automatic ventilation and cooling assembly; 401. Fixed cover; 402. Bearing; 403. Rotating cover; 404. Disc gear; 405. Motor; 406. Gear; 407. Exhaust fan; 408. PLC controller; 5. Dustproof and heat dissipation assembly; 501. Cooling fan; 502. Frame; 503. Dustproof net; 504. Magnetic block. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1, such as Figure 1 - Figure 3 As shown, this utility model provides a high-efficiency ventilation and cooling system for a tunnel boring machine (TBM), including a TBM body 1. A rear cover 2 is connected to the rear end of the TBM body 1. Bolts 3 are annularly connected inside the rear cover 2. An automatic ventilation and cooling component 4 is installed inside the TBM body 1 near the rear cover 2. The automatic ventilation and cooling component 4 includes a fixed cover 401, a bearing 402 connected to the surface of the fixed cover 401, a rotating cover 403 connected to the surface of the bearing 402, and a disc tooth 404 provided on the surface of the rotating cover 403. A motor 405 is connected to the inner bottom of the TBM body 1 near the disc tooth 404. The output end of 405 is connected to gear 406. An exhaust fan 407 is connected to one side of the inner wall of the shield machine body 1. A PLC controller 408 is connected to one side of the exhaust fan 407. The PLC controller 408 is electrically connected to an external power supply through a control switch. The PLC controller 408 is electrically connected to both the motor 405 and the exhaust fan 407. The position and size of gear 406 match the position and size of disc teeth 404. Gear 406 and disc teeth 404 form a meshing connection. The position of the slot inside the fixed cover 401 matches the position of the slot inside the rotating cover 403.

[0024] The effect achieved by the whole embodiment 1 is that when the shield machine body 1 is used for a long time, the temperature sensor in the PLC controller 408 is inducted, and then the PLC controller 408 starts the motor 405 and the exhaust fan 407. When the motor 405 is started, the gear 406 is driven to rotate through the output end, so that the gear 406 can rotate in meshing with the disc tooth 404, and then the rotating cover 403 can rotate through the bearing 402, so that the slot hole of the rotating cover 403 can coincide with the slot hole of the fixed cover 401, and then the motor 405 can be automatically closed, so as to achieve the effect of ventilation. At this time, the exhaust fan 407 is started to exhaust the hot air in the shield machine body 1. When the internal temperature of the shield machine body 1 is reduced, the motor 405 is started again to drive the rotating cover 403 to rotate, so that the rotating cover 403 can be sealed with the fixed cover 401, so as to prevent external dust from entering the shield machine body 1, and improve the heat dissipation effect of the shield machine body 1.

[0025] Embodiment 2, as shown in Figure 1 and Figure 4 , one side of the shield machine body 1 is connected with a dustproof heat dissipation assembly 5. The dustproof heat dissipation assembly 5 comprises a heat dissipation fan 501. The outer surface of the shield machine body 1 close to the heat dissipation fan 501 is connected with a frame 502. The inside of the frame 502 is provided with a dust screen 503. The two sides of the dust screen 503 are connected with magnetic suction blocks 504. The two side inner walls of the frame 502 are connected with magnets.

[0026] The effect achieved by the whole embodiment 2 is that when the exhaust fan 407 is started, the heat dissipation fan 501 is also automatically started, so as to realize the heat dissipation of the shield machine body 1, so that the inside of the shield machine body 1 can form a heat dissipation channel, and the dust screen 503 is provided, so as to isolate the external dust during heat dissipation. Through the magnetic suction connection mode of the dust screen 503, the dust screen 503 can also be quickly disassembled, so as to further improve the heat dissipation effect of the shield machine body 1.

[0027] Working principle: when the internal temperature of the shield machine body 1 is high, the PLC controller 408 automatically starts the motor 405 to rotate the rotating cover 403, so as to exhaust the hot air through the slot hole between the rotating cover 403 and the fixed cover 401. After use, the rotating cover 403 is automatically rotated to the position matched with the fixed cover 401, so as to realize sealing, so as to prevent dust from entering the inside, and improve the heat dissipation effect of the shield machine body 1. When the exhaust fan 407 is started, the heat dissipation fan 501 is also automatically started, so that the inside of the shield machine body 1 can form a heat dissipation channel, and the heat dissipation effect of the shield machine body 1 is further improved.

[0028] The above merely is the preferred embodiment of the present application, and does not limit the present application in other forms, and any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments with equivalent changes applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A high-efficiency ventilation and cooling system for a tunnel boring machine (TBM), comprising the TBM body (1), characterized in that: The rear end of the shield machine body (1) is connected to a rear cover (2), and the interior of the rear cover (2) is connected with bolts (3) in a ring. An automatic ventilation and cooling component (4) is installed inside the shield machine body (1) near the rear cover (2). The automatic ventilation and cooling component (4) includes a fixed cover (401), a bearing (402) is connected to the surface of the fixed cover (401), a rotating cover (403) is connected to the surface of the bearing (402), a disc tooth (404) is provided on the surface of the rotating cover (403), a motor (405) is connected to the inner bottom of the shield machine body (1) near the disc tooth (404), a gear (406) is connected to the output end of the motor (405), an exhaust fan (407) is connected to one side of the inner wall of the shield machine body (1), and a PLC controller (408) is connected to one side of the exhaust fan (407).

2. The high-efficiency ventilation and cooling system for tunnel boring machines according to claim 1, characterized in that: The PLC controller (408) is electrically connected to an external power supply via a control switch, and the PLC controller (408) is electrically connected to the motor (405) and the exhaust fan (407).

3. The high-efficiency ventilation and cooling system for tunnel boring machines according to claim 2, characterized in that: The position and size of the gear (406) match the position and size of the disc teeth (404), and the gear (406) and the disc teeth (404) form a meshing connection.

4. The high-efficiency ventilation and cooling system for tunnel boring machines according to claim 3, characterized in that: The position of the slot inside the fixed cover (401) matches the position of the slot inside the rotating cover (403).

5. The high-efficiency ventilation and cooling system for tunnel boring machines according to claim 1, characterized in that: A dustproof and heat dissipation assembly (5) is connected to one side of the main body (1) of the tunnel boring machine, and the dustproof and heat dissipation assembly (5) includes a cooling fan (501).

6. The high-efficiency ventilation and cooling system for tunnel boring machines according to claim 5, characterized in that: The shield machine body (1) is connected to a frame (502) near the outer surface of the cooling fan (501), and a dustproof net (503) is installed inside the frame (502).

7. The high-efficiency ventilation and cooling system for tunnel boring machines according to claim 6, characterized in that: The dustproof net (503) is connected to magnetic blocks (504) on both sides, and magnets are connected to the inner walls of both sides of the frame (502).

Images