Air compressor for shield construction of underneath pass tunnel and shield tunneling machine

Abstract

The utility model discloses an air compressor and a shield tunneling machine for undercrossing tunnel shield construction, the air compressor for undercrossing tunnel shield construction comprises an air compressor body, a support is arranged below the air compressor body, a base is arranged below the support, a lifting device is arranged in the support, and the lifting device is connected with the air compressor body. A moving mechanism is installed at the bottom of the support, an opening corresponding to the moving mechanism is formed in the base, and the lifting device is used for driving the base to ascend and descend relative to the support so as to drive the moving mechanism to stretch out of the opening and protrude out of the bottom face of the base or drive the moving mechanism to retract into the opening. The support and the base are arranged below the air compressor body, the base is adjusted to ascend and descend through the lifting mechanism arranged in the support, and when the air compressor needs to be moved, the universal wheels are adjusted to extend out of the openings in the base, so that the air compressor is convenient to move; in the working state, the universal wheels can be adjusted to retract to the upper portion of the base, and stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to an air compressor and a shield machine for shield construction of an underpass tunnel. Background Art

[0002] The air compressor is installed on a shield tunnel boring machine (hereinafter referred to as the shield machine). It moves with the shield machine and plays the role of dust removal, ventilation, and air supply for instruments. Generally, one air compressor is turned on and the other is placed side by side as a standby.

[0003] At present, most of the air compressors used for tunnel shield construction on the market are not convenient to move. Some of them are equipped with rollers at the bottom for easy movement. For example, patent CN213900462U discloses an air compressor for highway tunnel excavation, which has universal wheels installed on the base of the air compressor. However, this structure is prone to loosening and displacement, resulting in reduced stability during use. Utility Model Content

[0004] The utility model provides an air compressor for underpass tunnel shield construction, so as to solve the technical problems that the air compressor for underpass tunnel shield construction is inconvenient to move or has poor placement stability.

[0005] The utility model also provides a shield machine, which adopts the above-mentioned air compressor for shield construction of underpass tunnel.

[0006] According to one aspect of the utility model, an air compressor for shield construction under a tunnel is provided, comprising an air compressor body, a support is arranged below the air compressor body, a base is arranged below the support, a lifting device is installed inside the support, a moving mechanism is installed at the bottom of the support, an opening corresponding to the moving mechanism is arranged on the base, the lifting device is used to drive the base to rise and fall relative to the support, thereby driving the moving mechanism to extend out of the opening and protrude from the bottom surface of the base or driving the moving mechanism to retract into the opening.

[0007] Furthermore, the lifting device includes a support and a lifting mechanism, the support is connected to the base, a rotating drum is sleeved on the support, and the support is threadedly connected to the rotating drum; the lifting mechanism is connected to the rotating drum and is used to drive the rotating drum to rotate.

[0008] Furthermore, the rotating drum is rotatably connected to the support, and the upper and lower ends of the rotating drum penetrate the support.

[0009] Furthermore, the lifting mechanism includes a first gear, a movable ring and a driving mechanism, the first gear is sleeved on the rotating drum and fixed circumferentially relative to the rotating drum, the outer side of the movable ring is fixed with a first transmission tooth, and the inner side of the movable ring is fixed with a second transmission tooth; the first transmission tooth is meshed with the first gear; the second transmission tooth is connected to the driving mechanism, and the driving mechanism is used to drive the movable ring to rotate and drive the rotating drum to rotate through the first gear, thereby driving the pillar to move up and down.

[0010] Furthermore, the driving mechanism includes a motor and a second gear, the motor is mounted on a support, the output shaft of the motor is connected to the second gear, and the second gear is meshed with the second transmission tooth.

[0011] Furthermore, the pillars are provided in plurality, and the plurality of pillars are arranged at intervals along the circumference of the movable ring, the rotating drum and the first gear are arranged in one-to-one correspondence with the pillars, and the movable ring is respectively meshed with the first gears on the plurality of pillars.

[0012] Furthermore, the moving mechanism includes a connecting column fixed to the lower end of the support, and the lower end of the connecting column is rotatably connected to a universal wheel.

[0013] Furthermore, the lower end of the connecting column extends into the opening, so that the support is positioned and fixed relative to the base through the cooperation between the connecting column and the opening.

[0014] Furthermore, a non-slip pad is fixedly connected to the lower end of the base.

[0015] The utility model also provides a shield machine, comprising an air compressor for shield construction under the tunnel.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model is provided with a support and a base under the air compressor body, and the lifting and lowering of the base is adjusted by a lifting mechanism arranged in the support. When the air compressor needs to be moved, the base can be adjusted to rise so that the universal wheel extends out of the opening on the base to facilitate movement; in a working state, the base can be adjusted to fall so that the universal wheel retracts above the base. At this time, the anti-skid pad under the base plays an anti-skid role and can improve stability.

[0018] 2. The utility model has a simple and practical structure. Through the arrangement of structures such as supports, pillars and universal wheels, it is convenient for position movement and can improve stability during use, which has promotion value.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 It is a schematic diagram of the structure of the air compressor for shield construction of underpass tunnel of the utility model;

[0022] Figure 2 It is a schematic diagram of the internal structure of the air compressor for shield construction of underpass tunnel of the utility model;

[0023] Figure 3 for Figure 2 A partial enlarged view of area A;

[0024] Figure 4 for Figure 3 Schematic diagram of the top view structure of the movable ring in.

[0025] In the figure: 1-support, 2-base 2, 3-air compressor body, 4-movable ring, 5-connecting column, 6-universal wheel, 7-rotating drum, 8-pillar, 9-second gear, 10-first gear, 11-motor, 12-first rack, 13-second rack. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0027] See also Figure 1 An embodiment of the utility model provides an air compressor for shield construction under a tunnel, including an air compressor body 3, a support 1 is arranged below the air compressor body 3, a base 2 is arranged below the support 1, a lifting device is installed inside the support 2, a moving mechanism is installed at the bottom of the support 1, and an opening corresponding to the moving mechanism is arranged on the base 2, and the lifting device is used to drive the base 2 to rise and fall relative to the support 1, thereby driving the moving mechanism to extend out of the opening and protrude from the bottom surface of the base 2 or driving the moving mechanism to retract into the opening.

[0028] The base 2 described above supports the air compressor, the support 1 is arranged between the base 2 and the air compressor, and a lifting mechanism is arranged in the support 1 for adjusting the lifting of the base 2, so that the moving mechanism arranged at the bottom of the support 1 extends out or retracts into the base 2, so as to facilitate the movement or stable placement of the air compressor. The utility model arranges the support 1 and the base 2 below the air compressor body 3, and adjusts the lifting of the base 2 by the lifting mechanism arranged in the support 1. When the air compressor needs to be moved, the base 2 can be adjusted to rise, so that the moving mechanism extends out from under the opening on the base 2, so as to facilitate movement; in the working state, the base 2 can be adjusted to fall, so that the moving mechanism retracts above the base 2, and at this time the base 2 is in contact with the ground, which can improve the stability during use.

[0029] In this embodiment, see Figure 2 The lifting device includes a support 8 and a lifting mechanism. The support 8 is connected to the base 2. A rotating drum 7 is sleeved on the support 8. The support 8 is threadedly connected to the rotating drum 7. The lifting mechanism is connected to the rotating drum and is used to drive the rotating drum to rotate. The support is used to connect to the base. The lifting mechanism can be some devices that adjust the lifting and lowering, which are used to drive the rotating drum 7 to rotate, and then drive the support 8 to rise or fall, so that the support 8 drives the base to rise or fall. The rotation action is converted into a lifting action through the threaded matching structure between the rotating drum 7 and the support 8. The lifting structure is simple and efficient, with high transmission accuracy. It can also play a reverse self-locking role after the lifting action is completed, thereby improving stability.

[0030] In this embodiment, the rotating drum 7 is rotatably connected to the support 1, and the upper and lower ends of the rotating drum 7 penetrate the support 1. When the lifting mechanism drives the rotating drum 7 to rotate, the support 1 itself does not rotate, but drives the rotating drum 7 to rotate and then drives the support 8 to rise and fall. In addition, since the upper and lower ends of the rotating drum 7 penetrate the support 1, the installation stability of the rotating drum 7 on the support 1 is effectively improved, and the loosening of the rotating drum 7 is prevented from affecting the matching relationship between the rotating drum 7 and the support 8.

[0031] See also Figures 2 to 4, Optionally, in this embodiment, the lifting mechanism includes a first gear 10, a movable ring 4 and a driving mechanism, the first gear 10 is sleeved on the rotating drum 7 and fixed relative to the rotating drum 7 in the circumferential direction, the outer side of the movable ring 4 is fixed with a first transmission tooth 12, and the inner side of the movable ring 4 is fixed with a second transmission tooth 13; the first transmission tooth 12 is meshed with the first gear 10; the second transmission tooth 13 is connected to the driving mechanism, and the driving mechanism is used to drive the movable ring to rotate and drive the rotating drum 7 to rotate through the first gear 10, thereby driving the pillar 8 to rise and fall. The movable ring 4 of the present application is arranged at the inner top of the support 1, the movable ring 4 is annular, and transmission teeth are arranged on both the inner and outer sides of the movable ring 4, and the first gear 10 on the sleeve is meshed with the first transmission tooth 12, and the second transmission tooth 13 is meshed with the second gear 9 on the driving mechanism, and the movable ring 4 is driven to rotate in a horizontal direction through the driving structure connected to the inner side of the movable ring 4, so that the first transmission tooth 12 drives the first gear 10 to rotate, thereby driving the sleeve to rotate. Transmission teeth are respectively arranged on the inner and outer sides of the movable ring, the inner transmission teeth are connected to the driving mechanism, and the outer transmission teeth are connected to the first gear on the rotating drum, so that the rotating drum can rotate under the action of the driving mechanism, and the transmission accuracy is high.

[0032] In this embodiment, the driving mechanism includes a motor 11 and a second gear 9. The motor 11 is mounted on the support 1. The output shaft of the motor 11 is connected to the second gear 9. The second gear 9 is meshed with the second transmission tooth 13. The motor drives the second gear to rotate, thereby driving the movable ring 4 to rotate. The motor 11 is a servo motor. The output shaft of the motor 11 is arranged upward, so that the second gear 9 is meshed with the second transmission tooth 13. This driving method can make the movable ring rotate cyclically on the horizontal plane, thereby driving the rotating drum to rotate cyclically on the horizontal plane.

[0033] In this embodiment, the pillars 8 are provided in plurality, preferably in four numbers, and the plurality of pillars 8 are arranged at intervals along the circumference of the movable ring. The rotating drum 7 and the first gear 10 are arranged one-to-one with respect to the pillars. Since the movable ring is annular, the movable ring 4 is respectively engaged with the first gears 10 on the plurality of pillars. Under the action of the driving mechanism, the movable ring can drive the plurality of rotating drums to rotate synchronously, thereby allowing the plurality of pillars 8 to drive the base 2 to rise and fall synchronously, thereby more smoothly adjusting the up and down rise and fall of the base.

[0034] In this embodiment, the moving mechanism includes a connecting column 5 fixed to the lower end of the support 1, and the lower end of the connecting column 5 is rotatably connected to a universal wheel 6. The lower end of the connecting column 5 extends to the opening, and the universal wheel 6 can pass through the opening on the base 2 downward. There are four connecting columns 5, which are respectively arranged at the four corners of the support 1, and each connecting column 5 is connected to a universal wheel 6. By arranging the universal wheel 6, the air compressor can be easily moved.

[0035] In this embodiment, an anti-skid pad is fixedly connected to the lower end of the base 2. Preferably, the anti-skid pad is a rubber pad. An anti-skid pad is arranged under the base 2. When the air compressor is in working state, the anti-skid pad increases the friction between the bottom plate and the ground, so that it is not easy to slide or other displacement situations, thereby improving the overall stability.

[0036] In the working state, the support 8 can be driven down by the rotating drum 7, and the base 2 can be driven down by the support 8, so that the base 2 is against the ground, and the support 1 is propped up to make the universal wheel 6 away from the ground, and the contact area and friction with the ground are increased by the base 2 and the rubber pad, thereby enhancing the overall stability; when it is necessary to move, the support 8 is driven up by the rotating drum 7, and the base 2 is driven up by the support 8, so that the base 2 is off the ground, the universal wheel 6 contacts the ground and plays a supporting role, thereby facilitating movement.

[0037] The utility model also provides a shield machine, including an air compressor for shield construction under the tunnel, wherein the air compressor for shield construction under the tunnel is installed on the shield machine. Since the air compressor for shield construction under the tunnel can stably switch between the mobile state and the fixed state, the position of the air compressor body 3 in the shield machine can be flexibly adjusted to meet different usage requirements, and the stability of the working state can be ensured to avoid the air compressor body 3 from loosening and self-displacement, thereby improving the internal space utilization rate of the shield machine and improving the overall stability during operation.

[0038] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An air compressor for shield construction of an underpass tunnel, comprising an air compressor body (3), characterized in that: A support (1) is arranged below the air compressor body (3), a base (2) is arranged below the support (1), a lifting device is installed inside the support (1), a moving mechanism is installed at the bottom of the support (1), an opening corresponding to the moving mechanism is arranged on the base (2), and the lifting device is used to drive the base (2) to rise and fall relative to the support (1), thereby driving the moving mechanism to extend out of the opening and protrude from the bottom surface of the base (2) or driving the moving mechanism to retract into the opening.

2. The air compressor for shield construction of underpass tunnel according to claim 1, characterized in that: The lifting device comprises a support (8) and a lifting mechanism, wherein the support (8) is connected to the base (2), a rotating drum (7) is sleeved on the support (8), and the support (8) is threadedly connected to the rotating drum (7); the lifting mechanism is connected to the rotating drum (7) and is used to drive the rotating drum (7) to rotate.

3. The air compressor for shield construction of underpass tunnel according to claim 2, characterized in that: The rotating drum (7) is rotatably connected to the support (1), and the upper and lower ends of the rotating drum (7) penetrate the support (1).

4. The air compressor for shield construction of underpass tunnel according to claim 3, characterized in that: The lifting mechanism comprises a first gear (10), a movable ring (4) and a driving mechanism, wherein the first gear (10) is sleeved on the rotating drum (7) and is fixed relative to the rotating drum (7) in the circumferential direction, a first transmission tooth (12) is fixedly arranged on the outer side of the movable ring (4), and a second transmission tooth (13) is fixedly arranged on the inner side of the movable ring (4); the first transmission tooth (12) is meshed with the first gear (10); the second transmission tooth (13) is connected to the driving mechanism, and the driving mechanism is used to drive the movable ring (4) to rotate and drive the rotating drum (7) to rotate through the first gear (10), thereby driving the pillar (8) to move up and down.

5. The air compressor for shield construction of underpass tunnel according to claim 4, characterized in that: The driving mechanism comprises a motor (11) and a second gear (9); the motor (11) is mounted on a support (1); an output shaft of the motor (11) is connected to the second gear (9); and the second gear (9) is meshed with a second transmission tooth (13).

6. The air compressor for shield construction of underpass tunnel according to claim 4, characterized in that: A plurality of the pillars (8) are provided, and the plurality of pillars (8) are arranged at intervals along the circumference of the movable ring (4). The rotating drum (7) and the first gear (10) are arranged in a one-to-one correspondence with the pillars (8), and the movable ring (4) is respectively meshed with the first gears (10) on the plurality of pillars (8).

7. The air compressor for shield construction of underpass tunnel according to claim 1, characterized in that: The moving mechanism comprises a connecting column (5) fixed at the lower end of the support (1), and the lower end of the connecting column (5) is rotatably connected to a universal wheel (6).

8. The air compressor for shield construction of underpass tunnel according to claim 7, characterized in that: The lower end of the connecting column (5) extends into the opening, so that the support (1) is positioned and fixed relative to the base (2) through the cooperation between the connecting column (5) and the opening.

9. The air compressor for shield construction of underpass tunnel according to claim 1, characterized in that: The lower end of the base (2) is fixedly connected with an anti-slip pad.

10. A shield machine, characterized in that: It comprises an air compressor for underpass tunnel shield construction as described in any one of claims 1 to 9.

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