A tunnel arch construction work vehicle

Abstract

The present invention discloses a tunnel arch construction work vehicle, the construction work vehicle comprises a chassis, a rotating work platform unit and a lifting work platform unit; the chassis comprises a bearing part arranged on the chassis, two sides of the bearing part are respectively provided with two independent rotating work platform units; the lifting work platform unit is arranged on the bearing part; the work vehicle overcomes the construction blind spot problem when the tunnel arch is installed, realizes the collaborative work of construction personnel at the tunnel cross section, significantly improves the construction efficiency, and has a high degree of mechanized operation. By arranging the expandable and retractable rotating work platform units on both sides of the bearing part, not only the construction requirements are met, but also the problem of not exceeding the width during driving can be met, and the structure is simple and easy to manufacture.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, in particular to a tunnel arch construction vehicle. Background Art

[0002] In the existing tunnel construction, the mechanization level of tunnel arch installation is low, resulting in slow construction efficiency, high labor intensity of construction workers, and the construction safety of construction workers cannot be guaranteed. At present, when installing tunnel arches, the arches are mainly connected and welded by manpower, and multiple loaders are used as auxiliary tools for installation. Usually, the operator stands in the working bucket of the loader, and the arches located at different connection points of the tunnel are connected and welded by lifting the working bucket of the loader. For this auxiliary tool, at least one loader is required to cooperate with the work to transport the arch to be installed. Due to the limited construction space in the tunnel, the adjacent loaders move slowly and the cooperation efficiency is low. It is extremely unsafe for construction workers to stand in the working bucket of the loader.

[0003] The applicant applied for a multifunctional tunnel work trolley on July 22, 2019, with the application number CN201921151475.5. The work platform and manipulator installed on the main working arm, as well as the working platforms and manipulators of the first side working arm and the second side working arm located on both sides of the main working arm are used for the installation and construction of the tunnel arch frame. The construction personnel stand on the working platform of the corresponding working arm to dock and weld the arch frame. Due to the limited area of ​​the working platform and the limited carrying capacity of the working platform, it can only be used to carry two construction personnel, and the working actions of the two construction personnel are also limited by the area of ​​the working platform. In addition, since each working arm is controlled separately, it is difficult to ensure the coordination of the construction personnel. In addition, the working platform can only work within the telescopic travel range of the working arm. Therefore, during construction, there is a construction blind spot that the construction personnel cannot reach relative to the cross-section of the tunnel.

[0004] The Chinese invention patent with application number CN201110359597.5 discloses a multifunctional tunnel work vehicle. When installing the tunnel arch frame, the vehicle is moved to the installation position through the walking mechanism, and then the steel arch frame to be installed is placed on the deflection card seat, and then the steel arch frame to be installed is slowly lifted by the folding arm crane until it leaves the ground, and then the distance between the card plate 1 and the card plate 2 and the card seat set at the tail of the deflection card seat is adjusted by turning the handle 1 and the handle 2, so that the steel arch frame to be installed is fixed between the card plate 1, the card plate and the card seat. Subsequently, the folding arm crane is used to lift the steel arch frame to the required height, and the mobile trolley slides on the slide rail due to gravity, and the slewing support structure is rotated to adjust the position of the steel arch frame to be installed, so that the steel arch frame to be installed is always parallel to the tunnel section, and finally the steel arch frame to be installed is moved to the tunnel section, and the construction personnel can install the steel arch frame on the tunnel section. Although the installation of the arches is achieved, there is no disclosure of a technical solution for butting and welding the arches at the connection points of the arches relative to the tunnel cross section.

[0005] The Chinese invention patent application with application number CN201611053202.8 discloses a tunnel vehicle-mounted foldable multifunctional work platform, which realizes the unfolding and folding of each platform working layer through a cylinder, supports each platform working layer through manual connection of diagonal braces, and necessarily realizes the contraction and folding of each platform working layer through manual disassembly of diagonal braces, and the degree of mechanization is insufficient. In addition, no technical solution for the implementation of docking and welding of the arch frame on the platform working layer has been disclosed.

[0006] The utility model patent with application number CN201920516867.0 discloses a self-propelled tunnel arch frame trolley, which discloses a self-propelled tunnel arch frame trolley, including a traveling vehicle, the traveling vehicle includes a cab, an electric hydraulic control system and a frame assembly, hydraulic telescopic support legs are arranged at the four corners of the frame assembly, a front axle transmission mechanism for driving the front two wheels and a rear axle transmission mechanism for driving the rear two wheels are arranged on the chassis of the frame assembly, the front axle transmission mechanism is equipped with a front reduction box and a front power motor, and the rear axle transmission mechanism is equipped with a rear reduction box and a rear power motor; a slideway arranged along the front and rear directions is arranged on the frame assembly, an operating arm mechanism is slidably connected to the slideway, and a power hydraulic cylinder for pushing the operating arm mechanism to move forward and backward is arranged on the frame assembly; the utility model is a self-propelled tunnel arch frame trolley with compact overall structure, strong passability, reliable walking, and quick and convenient arch frame support. However, for tunnel processing, the structure of the self-propelled arch frame trolley is complex, and during operation, its range of activity is limited and there are still large blind spots.

[0007] Based on this, the present invention aims to provide a tunnel arch construction work vehicle, which has a simple structure, can avoid construction blind spots, and improve construction efficiency. Summary of the invention

[0008] The purpose of the present invention is to overcome the deficiencies existing in the above-mentioned prior art and to provide a tunnel arch construction work vehicle.

[0009] Furthermore, the present invention provides a tunnel arch construction work vehicle, which includes a chassis, a rotating work platform unit, and a lifting work platform unit.

[0010] The chassis is the bottom of the tunnel arch construction vehicle, and is used to load the driver's cab and the bearing part.

[0011] Furthermore, the chassis includes a bearing portion arranged on the chassis.

[0012] Furthermore, a support portion is provided on the chassis, and the support portion can support the tunnel arch construction work vehicle, ensure the levelness of the work vehicle, and provide safety for the work vehicle.

[0013] Furthermore, a rotating working platform unit is provided on at least one side of the bearing portion.

[0014] Furthermore, two independent rotating working platform units are respectively arranged on both sides of the bearing portion.

[0015] Furthermore, the rotating working platform unit can move horizontally to transport the working platform horizontally to a required working position.

[0016] Furthermore, the lifting work platform unit is arranged on the bearing part.

[0017] The lifting platform can move in the vertical direction and transport the work platform to the designated working position to perform designated operations.

[0018] Furthermore, the rotating work platform unit includes a work platform and a rotating arm.

[0019] Furthermore, the rotating working platform unit is connected to the bearing part by means of a hinge.

[0020] Furthermore, the articulated manner includes at least two hinge points and two rotating arms.

[0021] Furthermore, the rotating arm includes an active arm and an auxiliary arm;

[0022] Specifically, one end of the active arm is hinged to the load-bearing part through a first hinge point, and one end of the auxiliary arm is hinged to the load-bearing part through a second hinge point. The active arm and the auxiliary arm can move horizontally in a circumferential direction through the hinge points.

[0023] Furthermore, the rotating working platform unit also includes at least one swing arm.

[0024] The swing arm is hinged to the active arm;

[0025] Specifically, the other end of the active arm is provided with a third hinge point for hinge-connecting the active arm with the swing arm;

[0026] Furthermore, the swing arm is used to support the working bucket to ensure that the working bucket can be horizontally stable.

[0027] Furthermore, the rotating working platform unit also includes at least one front end arm.

[0028] The front end arm is hinged to the auxiliary arm;

[0029] Specifically, the other end of the auxiliary arm is provided with a fourth hinge point for hinge-connecting the auxiliary arm with the front end arm;

[0030] Furthermore, the rotating working platform unit also includes at least one horizontal working platform.

[0031] Furthermore, the front end arm and the swing arm may be connected or not connected, and again there is no limitation;

[0032] The front arm and the swing arm are set to support the horizontal working platform, provide a stable support point, increase the stability of the working bucket, and at the same time enable a larger working bucket to be set and carry a larger weight.

[0033] Furthermore, when the rotating working platform unit is working, the first hinge point and the second hinge point are used as the center, so that the third hinge point and the fourth hinge point drive the horizontal working platform to rotate along the first hinge point and the second hinge point, so that the horizontal working platform rotates and unfolds from the initial position of the chassis to meet the width required for working in the tunnel;

[0034] Furthermore, when the rotating work platform unit is not working, the rotating work platform unit takes the first hinge point and the second hinge point as the center, so that the third hinge point and the fourth hinge point drive the horizontal workbench to rotate and shrink along the first hinge point and the second hinge point, so that the work platform is placed at one end of the chassis to reduce the floor space.

[0035] Furthermore, the lifting work platform unit also includes a lifting part, and the lifting part is arranged on the bearing part.

[0036] A vertical working platform is provided at the upper end of the lifting part, which provides a platform for the operating construction workers and can transport the construction workers to any horizontal position to perform the required operations.

[0037] Furthermore, the lifting work platform unit may also include a work crane;

[0038] The working crane is arranged on a vertical working platform;

[0039] The work crane can be used to hoist steel arches or other materials required for construction;

[0040] Furthermore, the lifting work platform unit may also include a manipulator;

[0041] The manipulator is arranged on a vertical working platform;

[0042] The manipulator can support and fix the steel arch at the tunnel vault, making it easier for construction workers to complete the docking and welding of the steel arch.

[0043] Furthermore, the lifting part is any one of a double-speed telescopic device and / or a scissor-type mechanism.

[0044] The double-speed telescopic device and the scissor mechanism are both existing technologies. For example, the telescopic arm of a crane usually adopts a double-speed telescopic device, and the aerial work platform often uses a scissor mechanism, so they are not described in detail.

[0045] Furthermore, the tunnel arch construction vehicle provided by the present invention also includes an auxiliary workbench.

[0046] The auxiliary workbench is one of a fixed stand, a scissor mechanism, and a displacement lifting mechanism.

[0047] The auxiliary workbench is arranged on the rotating work platform unit.

[0048] When the auxiliary workbench is a fixed platform, a ladder is arranged on the fixed platform, and construction personnel go up to the fixed platform from the ladder to perform construction work.

[0049] Alternatively, when the auxiliary workbench is a position-changing lifting mechanism, the distance between the auxiliary workbench and the horizontal work platform is adjusted by the position lifting mechanism to transport the construction personnel to the designated position, thereby improving work efficiency.

[0050] Compared with the prior art, the beneficial effects of the present invention are: it overcomes the construction blind spot problem existing in tunnel construction, and realizes the collaborative work of construction personnel at the tunnel cross section, so that the construction efficiency is significantly improved, and the degree of mechanized operation is high. By setting the expandable and retractable rotating working platform unit on both sides of the bearing part, it not only meets the construction requirements, but also can meet the problem of not exceeding the width during driving, and has a simple structure and is easy to manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] Figure 1It is a schematic diagram of the main structure of the present invention;

[0053] Figure 2 yes Figure 1 A schematic diagram of a top view structure;

[0054] Figure 3 It is a structural schematic diagram of the rotary working platform unit of the present invention;

[0055] Figure 4 Example 1 is a schematic structural diagram of a tunnel arch construction vehicle;

[0056] Figure 5 Example 2 Structural schematic diagram of a tunnel arch construction vehicle;

[0057] Figure 6 Example 3: Structural schematic diagram of a tunnel arch construction vehicle;

[0058] Figure 7 Example 4: Structural schematic diagram of a tunnel arch construction vehicle;

[0059] Figure 8 Example 5 Structural schematic diagram of a tunnel arch construction vehicle;

[0060] Among them, 1. chassis; 2. rotating working unit; 3. lifting working unit; 4. bearing part; 5. supporting part; 6. first hinge point; 7. active arm; 8. second hinge point; 9. auxiliary arm; 10. fourth hinge point; 11. front arm; 12. swing arm; 13. horizontal working platform; 14. third hinge point; 15. lifting part; 16. vertical working platform; 17. working crane; 18. manipulator; DETAILED DESCRIPTION

[0061] like Figure 1-2 A tunnel arch construction work vehicle includes a chassis 1, a rotating work platform unit 2, and a lifting work platform unit 3. The chassis 1 includes a load-bearing portion 4 arranged on the chassis 1, and support portions 5 respectively arranged at the front and rear ends of the load-bearing portion 4. The lifting work platform unit 3 is arranged on the load-bearing portion 4 of the chassis 1, and the rotating work platform unit 2 is symmetrically arranged on the left and right sides of the load-bearing portion 4. The rotating work platform unit can move horizontally and circumferentially.

[0062] like Figure 3 , a rotating structure of a tunnel arch construction vehicle, the rotating work platform unit 2 includes a work platform and a rotating arm, and the rotating work platform unit is connected to the bearing part by a hinged manner. The rotating arm includes an active arm 7 and an auxiliary arm 9;

[0063] Specifically, one end of the active arm is hinged to the load-bearing part 4 through the first hinge point 6, and one end of the auxiliary arm 9 is hinged to the load-bearing part 4 through the second hinge point 8. The active arm 7 and the auxiliary arm 9 can move horizontally in a circumferential direction through the hinge points; the rotating work platform unit also includes a swing arm 12; the swing arm 12 is hinged to the active arm 7; the other end of the active arm 7 is provided with a third hinge point 14 for hingedly connecting the active arm 7 to the swing arm 12; the swing arm is used to support the horizontal working platform 13 to ensure that the working bucket can be horizontally stable.

[0064] The rotating work platform unit further comprises at least one front arm 11. The front arm 11 is hinged to the auxiliary arm 9; a fourth hinge point 10 is provided at the other end of the auxiliary arm for hingedly connecting the auxiliary arm 9 to the front arm 11;

[0065] The front end arm 11 is connected to the swing arm 12;

[0066] When the rotating working platform unit 2 is working, the first hinge point and the second hinge point are used as the center, so that the third hinge point and the fourth hinge point drive the horizontal working platform to rotate along the first hinge point and the second hinge point, so that it rotates and unfolds from the initial position of the chassis to meet the width required for working in the tunnel;

[0067] When the rotating work platform unit is not working, the rotating work platform unit takes the first hinge point and the second hinge point as the center, so that the third hinge point and the fourth hinge point drive the horizontal workbench to rotate and shrink along the first hinge point and the second hinge point, so that the work platform is placed at one end of the chassis to shrink the floor space.

[0068] The lifting work platform unit 3 further includes a lifting part, and the lifting part is arranged on the bearing part.

[0069] A vertical working platform is provided at the upper end of the lifting part, which provides a platform for the operating construction workers and can transport the construction workers to any horizontal position to perform the required operations.

[0070] Specifically, the specific implementation of the present invention provides the following tunnel arch construction work vehicle;

[0071] Example 1

[0072] Reference Figure 1-4 It can be seen that the tunnel arch construction work vehicle includes a chassis 1, a rotating work platform unit 2, and a lifting work platform unit 3. The chassis 1 includes a load-bearing part 4 arranged on the chassis 1, and support parts 5 respectively arranged at the front and rear ends of the load-bearing part 4. The lifting work platform unit 3 is arranged on the load-bearing part 4 of the chassis 1, and the rotating work platform unit 2 is symmetrically arranged on both sides of the load-bearing part 4; the rotating work platform unit can move horizontally and circumferentially.

[0073] like Figure 3 , a rotating structure of a tunnel arch construction vehicle, the rotating work platform unit 2 includes a work platform and a rotating arm, and the rotating work platform unit is connected to the bearing part by a hinged manner. The rotating arm includes an active arm 7 and an auxiliary arm 9;

[0074] Specifically, one end of the active arm is hinged to the load-bearing part 4 through the first hinge point 6, and one end of the auxiliary arm 9 is hinged to the load-bearing part 4 through the second hinge point 8. The active arm 7 and the auxiliary arm 9 can move horizontally in a circumferential direction through the hinge points; the rotating work platform unit also includes a swing arm 12; the swing arm 12 is hinged to the active arm 7; the other end of the active arm 7 is provided with a third hinge point 14 for hingedly connecting the active arm 7 to the swing arm 12; the swing arm is used to support the horizontal working platform 13 to ensure that the working bucket can be horizontally stable.

[0075] The rotating work platform unit further comprises at least one front arm 11 . The front arm 11 is hinged to the auxiliary arm 9 ; the other end of the auxiliary arm is provided with a fourth hinge point 10 for hingedly connecting the auxiliary arm 9 to the front arm 11 ; the front arm 11 is connected to the swing arm 12 .

[0076] The lifting work platform unit 3 further includes a lifting portion 15 , and the lifting portion 15 is disposed on the bearing portion 4 .

[0077] A vertical working platform 16 is provided at the upper end of the lifting part, and the vertical working platform 16 provides a platform for the operating construction workers, and can transport the construction workers to any horizontal position to perform the required operations.

[0078] During construction work, construction workers stand on the horizontal workbench 13 and the vertical workbench 16 to perform butt welding of the steel arches, so that construction workers on each workbench can perform work synchronously, thereby improving construction efficiency.

[0079] Example 2

[0080] Reference Figure 5 It can be seen that: based on Example 1, the present invention sets a work crane 17 on the horizontal workbench 16. Two work cranes are set for lifting steel arches or other construction needs to reduce the physical labor of construction workers and further improve construction efficiency.

[0081] Example 3

[0082] Reference Figure 6 As shown: Based on Example 2, the present invention is provided with a manipulator 18 on the vertical workbench 16. After the steel arch at the tunnel vault is supported and fixed by the manipulator 18, the construction work of the construction workers on each workbench is facilitated and the physical labor of the construction workers is reduced.

[0083] Example 4

[0084] like Figure 7 As shown, on the basis of Example 3, the present invention is provided with a manipulator 18 on the vertical workbench 16, and after the steel arch at the tunnel vault is supported and fixed by the manipulator 18, the construction of the construction personnel on each workbench is facilitated, and the physical labor of the construction personnel is reduced; an auxiliary work platform is provided on the horizontal work platform, and the auxiliary work platform is a fixed platform, and a ladder 20 is provided on the fixed platform.

[0085] Example 5

[0086] Reference Figure 8 It can be seen that: on the basis of Example 3, the present invention sets an auxiliary workbench 19 on the horizontal workbench 13 of the rotating workbench unit 2, and the auxiliary workbench 19 is a displacement lifting mechanism. The auxiliary workbench 19 uses a displacement lifting mechanism as the auxiliary workbench 19 to perform construction work, and the distance between the auxiliary workbench 19 and the horizontal workbench 13 is adjusted by the displacement lifting mechanism, so as to overcome the construction blind area problem in the prior art, thereby improving the construction efficiency.

[0087] The present invention is not limited to the exact construction that has been described above and shown in the drawings, and various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A tunnel arch construction vehicle, characterized in that: The construction vehicle comprises a chassis, a rotating work platform unit and a lifting work platform unit; the chassis comprises a load-bearing part arranged on the chassis, and a rotating work platform unit is arranged on at least one side of the load-bearing part; the lifting work platform unit is arranged on the load-bearing part; the rotating work platform unit comprises a work platform and a rotating arm; the rotating work platform unit is connected to the load-bearing part by an articulation; the articulation comprises at least two articulation points and two rotating arms; the rotating arm comprises an active arm and an auxiliary arm; one end of the active arm is articulated to the load-bearing part by a first articulation point, and one end of the auxiliary arm is articulated to the load-bearing part by a second articulation point, and the active arm and the auxiliary arm can move horizontally in a circumferential direction through the articulation points; The rotating working platform unit also includes at least one swing arm; a third hinge point is provided at the other end of the active arm for hingedly connecting the active arm with the swing arm; the rotating working platform unit also includes at least one front end arm; a fourth hinge point is provided at the other end of the auxiliary arm for hingedly connecting the auxiliary arm with the front end arm.

2. The tunnel arch construction vehicle according to claim 1, characterized in that: A support part is arranged on the chassis, and the support part can support the tunnel arch construction work vehicle to ensure the level of the work vehicle.

3. The tunnel arch construction vehicle according to claim 1, characterized in that: The lifting work platform unit also includes a lifting part and a vertical work platform. The lifting part is arranged on the bearing part, and the vertical work platform is arranged at the upper end of the bearing part.

4. The tunnel arch construction vehicle according to claim 3, characterized in that: The lifting work platform unit may further include a work crane; the work crane is arranged on the vertical work platform.

5. The tunnel arch construction vehicle according to claim 3, characterized in that: The lifting work platform unit may further include a manipulator; the manipulator is arranged on the vertical work platform.

6. The tunnel arch construction vehicle according to claim 1, characterized in that: The tunnel arch construction work vehicle also includes an auxiliary workbench; the auxiliary workbench is one of a fixed stand, a scissor mechanism, and a displacement lifting mechanism; the auxiliary workbench is arranged on a rotating work platform unit.

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