Crawler belt self-walking tunnel multifunctional excavation vertical frame trolley

Abstract

The utility model discloses a crawler belt self-walking tunnel multifunctional excavation vertical frame trolley, and relates to the technical field of tunnel excavation. The trolley comprises a frame, a hydraulic walking crawler belt is installed at the bottom of the frame and used for walking of the trolley, an arch frame lifting mechanism is installed at one end of the frame and used for lifting an arch frame, an arch frame moving mechanism is installed at the top of the frame and used for moving the arch frame, and an arch frame jacking mechanism is installed at the other end of the frame and used for jacking the arch frame. The arch lifting mechanism comprises two lifting rails fixed to one side of the frame, one side of each lifting rail is slidably connected with a lifting frame, and one side of each lifting frame is rotationally connected with a rotary tripod. The device can be more automatic, the working intensity of workers can be reduced, meanwhile, the working platform can be put down and folded, an operation space is provided for explosive loading workers, when the working platform is not used, the platform is rolled up through a chain block, a traffic clearance is reserved, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel excavation, in particular to a crawler self-propelled multifunctional tunnel excavation stand trolley. Background Art

[0002] Tunnel excavation frame trolleys are widely used in various construction work in subway, railway, highway and other tunnels, such as tunnel lining, grouting, steel frame erection, etc. Its high efficiency, safety and flexibility have made it widely used in subway projects and tunnel projects at home and abroad.

[0003] The traditional tunnel excavation rig uses manual arch erection and has no mechanized arch erection function. At the same time, the traditional excavation rig is a simple steel structure frame, and the excavator is dragged and moved in the tunnel, which is simple and crude and easily damages the equipment. Therefore, a crawler self-propelled tunnel multifunctional excavation rig trolley is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a crawler self-propelled multifunctional tunnel excavation stand trolley, which can not only make the device more automated and reduce the workload of the staff, but also can lower and close the working platform to provide operating space for the charging personnel. When not in use, the hand hoist can retract the platform to leave clearance for traffic, which is easy to use and solves the existing technical problems.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] A crawler self-propelled multifunctional tunnel excavation frame trolley comprises: a frame, a hydraulic walking crawler installed at the bottom of the frame for the trolley to travel, an arch frame lifting mechanism installed at one end of the frame for lifting the arch frame, an arch frame moving mechanism installed at the top of the frame for moving the arch frame, and an arch frame jacking mechanism installed at the other end of the frame for jacking the arch frame.

[0007] As a further solution of the present invention, the arch frame lifting mechanism includes two lifting rails fixed on one side of the frame, one side of the two lifting rails is slidably connected to a lifting frame, and one side of the lifting frame is rotatably connected to a rotating tripod.

[0008] As a further solution of the present invention, the arch frame lifting mechanism also includes a first chain drive system for driving the lifting frame to move, the first chain drive system includes a transmission assembly respectively installed on the two lifting rails, the transmission assembly includes two sprockets and a chain drive box assembly, the two sprockets rotate at the top and bottom of the lifting rails respectively, the chain drive box assembly is fixed on one side of the lifting rail, and the chain drive box assembly is internally connected to a drive chain, and the two ends of the drive chain respectively pass around the two sprockets and are fixed to the lifting frame.

[0009] As a further solution of the present invention, the first chain drive system also includes a drive assembly, which includes a motor reducer. The motor reducer is fixed on one side of the frame, and the output ends on both sides of the motor reducer are fixedly connected to transmission rods, and the two transmission rods are respectively fixed to the input ends of the two chain drive box assemblies.

[0010] As a further solution of the present invention, the arch frame moving mechanism includes two trolley tracks, both of which are fixed on the top of the frame, and a longitudinal sliding frame is slidably connected between the trolley tracks, and a longitudinal transfer trolley frame is slidably connected to the top of the longitudinal sliding frame. A second chain drive system is installed between the longitudinal sliding frame and the trolley track, and the second chain drive system has the same structure as the first chain drive system.

[0011] As a further solution of the present invention, the arch frame lifting mechanism includes a lifting frame, one end of the lifting frame is rotatably connected to a longitudinal guide rail, the top of the longitudinal guide rail is slidably connected to an adjusting pulley, and also includes two guide sleeves, both guide sleeves are fixed at one end of the frame, and one side of the two guide sleeves is fixedly installed with a screw lift, and two lifting screws used in conjunction with the screw lift are fixedly installed at the bottom of the lifting frame, and the bottom of the lifting frame is fixedly connected to two guide rods, and the two guide rods are respectively plugged into the two guide sleeves.

[0012] As a further solution of the present invention, one side of the lifting frame and the bottom of the longitudinal guide rail are both rotatably connected with an adjusting screw rod, and a screw rod sleeve for adjusting the angle of the longitudinal guide rail is threadedly connected between the two adjusting screw rods.

[0013] As a further solution of the present invention, hydraulic lifting legs are fixedly installed at the four corners of the bottom of the frame.

[0014] As a further solution of the present invention, both sides of the frame are rotatably connected with work platforms, and two hand chain hoists for driving the work platforms to rotate are installed on the top of the frame. The output ends of the two hand chain hoists are respectively fixed to the two work platforms.

[0015] In this application, the usage process is as follows:

[0016] 1. The excavation trolley moves to the upper step face stand position by itself via the hydraulic travel filter belt, and the hydraulic lifting right angle is activated to adjust the trolley to the required height, and the center line of the trolley coincides with the center line of the tunnel;

[0017] 2. Use a loader to place three steel arch frame units on the rotating tripod of the trolley, start the motor reducer, and the motor reducer drives the chain drive box assembly to rotate through the transmission rod, and then drives the lifting frame and the rotating tripod upward through the drive chain, thereby transferring the steel arch to the top. Then, use the second chain drive system to drive the longitudinal sliding frame and place the steel arch frame unit on the longitudinal moving trolley;

[0018] 3. Use the second chain drive system to transport the three steel arch units to the front-end adjustment pulley;

[0019] 4. Rotate the screw sleeve to adjust the angle of the longitudinal guide rail. At the same time, adjust the pulley to adjust the steel arch unit to achieve fine-tuning of the arch centering.

[0020] 5. Start the screw lifter and lift the lifting frame upward by lifting the screw, and then lift the steel arch frame unit upward to the specified height;

[0021] 6. Manually install the side arches on both sides. When working, lower the working platform with a hand chain hoist. When the vehicle below needs to pass, fold up the working platform with a hand chain hoist for easy use.

[0022] 7. After fixing the steel arch, hanging the mesh and spraying the concrete, drill the blastholes and load the explosives;

[0023] 8. Use a loader to move the trolley away and place it on the lower steps to avoid passing vehicles, and then carry out blasting and slag removal operations.

[0024] 9. When blasting on the tunnel face, it is necessary to operate the hydraulic crawler to retreat the excavation trolley to a safe distance (50-55 meters from the tunnel face) to prevent the shock wave and flying rocks from the blasting from damaging the trolley.

[0025] The embodiments of the present invention have the following beneficial effects:

[0026] In the utility model, a loader is used to place the steel arch on the rotating tripod of the trolley. The rotating tripod can lift three arches at a time, which greatly improves the construction efficiency compared to the structure of the ordinary excavation trolley which can only lift one arch. The tripod can be rotated left and right to be stored and fixed to prevent interference with passing vehicles.

[0027] In the utility model, a flip-type working platform is designed at the front end of the trolley frame. The operation is simple and convenient with a hand chain hoist for retracting. When charging, the working platform is lowered and folded to provide operating space for the charging personnel. When not in use, the hand chain hoist retracts the platform to leave a clearance for traffic, which is convenient to use.

[0028] In the utility model, the coordinated use of the hydraulic walking crawler, the arch frame lifting mechanism, the arch frame moving mechanism and the arch frame lifting mechanism makes the device more automated and reduces the work intensity of the staff.

[0029] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is a schematic diagram of a longitudinal cross-sectional view of an embodiment of the present utility model;

[0032] Figure 2 This is a front view structural diagram of an embodiment of the utility model;

[0033] Figure 3 This is a schematic diagram of the longitudinal structure of the arch lifting mechanism according to one embodiment of the present utility model;

[0034] Figure 4 This is a front view structural diagram of the arch lifting mechanism according to one embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the top view of the arch lifting mechanism according to one embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the longitudinal structure of the arch jacking mechanism according to one embodiment of the present utility model;

[0037] Figure 7 This is a front view structural diagram of the arch jacking mechanism according to one embodiment of the present invention;

[0038] Figure 8 This is a structural diagram of the arch moving mechanism according to one embodiment of the present invention.

[0039] In the figure: 1. Frame; 2. Hydraulic walking track; 3. Hydraulic lifting support leg; 4. Arch frame lifting mechanism; 5. Arch frame moving mechanism; 6. Arch frame lifting mechanism; 7. Working platform; 8. Hand hoist; 9. Lifting track; 10. Lifting frame; 11. Rotating tripod; 12. Chain drive box assembly; 13. Drive chain; 14. Sprocket; 15. Motor reducer; 16. Transmission rod; 17. Lifting frame; 18. Guide rod; 19. Lifting screw; 20. Screw lifter; 201. Guide sleeve; 21. Longitudinal guide rail; 22. Adjusting pulley; 23. Adjusting screw; 231. Screw sleeve; 24. Longitudinal sliding frame; 25. Longitudinal transfer trolley frame; 26. Second chain drive system; 27. Trolley track. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0043] Example 1

[0044] See also Figures 1-8 As shown, in this embodiment, a crawler self-propelled multifunctional tunnel excavation frame trolley is provided, including: a frame 1, a hydraulic walking crawler 2 is installed at the bottom of the frame 1 for the trolley to travel, an arch frame lifting mechanism 6 is installed at one end of the frame 1 for lifting the arch frame, an arch frame moving mechanism 5 is installed at the top of the frame 1 for moving the arch frame, and an arch frame jacking mechanism 4 is installed at the other end of the frame 1 for jacking the arch frame. Through the coordinated use of the hydraulic walking crawler 2, the arch frame jacking mechanism 4, the arch frame moving mechanism 5 and the arch frame lifting mechanism 6, the device is made more automated and the work intensity of the staff is reduced.

[0045] Example 2

[0046] Improvements based on Example 1: Refer to the attached Figures 1-8 The arch lifting mechanism 6 includes two lifting rails 9 fixed on one side of the frame 1. One side of the two lifting rails 9 is slidably connected to a lifting frame 10. One side of the lifting frame 10 is rotatably connected to a rotating tripod 11. The rotating tripod 11 can be rotated left and right to be stored and fixed to prevent interference with passing vehicles.

[0047] In the present utility model, the arch lifting mechanism 6 also includes a first chain drive system for driving the lifting frame 10 to move. The first chain drive system includes a transmission component respectively installed on the two lifting rails 9. The transmission component includes two sprockets 14 and a chain drive box assembly 12. The two sprockets 14 rotate at the top and bottom of the lifting rails 9 respectively. The chain drive box assembly 12 is fixed on one side of the lifting rail 9. The chain drive box assembly 12 is internally connected to a drive chain 13. The two ends of the drive chain 13 respectively pass around the two sprockets 14 and are fixed to the lifting frame 10. The lifting frame 10 and the rotating tripod 11 are driven upward by the drive chain 13, and the steel arch is transported upward.

[0048] In particular, the first chain drive system also includes a drive component, which includes a motor reducer 15. The motor reducer 15 is fixed on one side of the frame 1. The output ends on both sides of the motor reducer 15 are fixedly connected to transmission rods 16. The two transmission rods 16 are respectively fixed to the input ends of the two chain drive box assemblies 12. When the motor reducer 15 is started, the motor reducer 15 drives the output end of the chain drive box assembly 12 to rotate through the transmission rod 16, and then drives the lifting frame 10 and the rotating tripod 11 to move upward through the drive chain 13.

[0049] It should be noted that the arch frame moving mechanism 5 includes two trolley rails 27, both of which are fixed on the top of the frame 1. The longitudinal sliding frame 24 is slidably connected between the trolley rails 27, and the top of the longitudinal sliding frame 24 is slidably connected to the longitudinal transfer trolley frame 25. A second chain drive system 26 is installed between the longitudinal sliding frame 24 and the trolley rails 27. The second chain drive system 26 has the same structure as the first chain drive system. The second chain drive system 26 is used to drive the longitudinal sliding frame 24, so that the steel arch frame unit can be placed on the longitudinal transfer trolley 25.

[0050] In the present utility model, the arch frame lifting mechanism 4 includes a lifting frame 17, one end of the lifting frame 17 is rotatably connected to the longitudinal guide rail 21, the top of the longitudinal guide rail 21 is slidably connected to the adjusting pulley 22, and also includes two guide sleeves 201, the two guide sleeves 201 are fixed to one end of the frame 1, and one side of the two guide sleeves 201 is fixedly installed with a screw lift 20. The bottom of the lifting frame 17 is fixedly installed with two lifting screws 19 used in conjunction with the screw lift 20, and the bottom of the lifting frame 17 is fixedly connected to two guide rods 18, which are respectively plugged into the two guide sleeves 201. Start the screw lift 20, and lift the lifting frame 17 upward by lifting the screw rod 19, and then lift the three steel arch frame units upward to the specified height frame.

[0051] In particular, one side of the lifting frame 17 and the bottom of the longitudinal guide rail 21 are rotatably connected with an adjusting screw rod 23, and a screw rod sleeve 231 for adjusting the angle of the longitudinal guide rail 21 is threadedly connected between the two adjusting screw rods 23. By rotating the screw rod sleeve 231, the angle of the longitudinal guide rail 21 can be adjusted. At the same time, the steel arch frame unit can be adjusted by adjusting the pulley 22 to achieve fine-tuning of the arch frame centering.

[0052] It should be noted that hydraulic lifting legs 3 are fixedly installed at the four corners of the bottom of the frame 1, and the hydraulic lifting legs 3 can fix the frame 1.

[0053] In the utility model, both sides of the frame 1 are rotatably connected with the working platform 7. Two hand hoists 8 for driving the working platform 7 to rotate are installed on the top of the frame 1. The output ends of the two hand hoists 8 are respectively fixed to the two working platforms 7. The working platform 7 is lowered by the hand hoist 8. When the vehicle below needs to pass, the working platform 7 is folded up by the hand hoist 8 for easy use.

[0054] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are only used to distinguish various features and have no actual order or directional meaning, and this application is not limited to this.

[0055] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0056] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A crawler self-propelled tunnel multifunctional excavation stand trolley, characterized in that: include: A frame (1) is provided, wherein a hydraulic walking crawler (2) is installed at the bottom of the frame (1) for the trolley to travel, an arch frame lifting mechanism (6) is installed at one end of the frame (1) for lifting the arch frame, an arch frame moving mechanism (5) is installed at the top of the frame (1) for moving the arch frame, and an arch frame jacking mechanism (4) is installed at the other end of the frame (1) for jacking the arch frame.

2. The crawler self-propelled multifunctional tunnel excavation stand trolley according to claim 1, characterized in that: The arch lifting mechanism (6) comprises two lifting rails (9) fixed on one side of the frame (1), one side of the two lifting rails (9) is slidably connected to a lifting frame (10), and one side of the lifting frame (10) is rotatably connected to a rotating tripod (11).

3. The crawler self-propelled multifunctional tunnel excavation stand trolley according to claim 2, characterized in that: The arch lifting mechanism (6) also includes a first chain drive system for driving the lifting frame (10) to move, the first chain drive system includes a transmission assembly respectively installed on the two lifting rails (9), the transmission assembly includes two sprockets (14) and a chain drive box assembly (12), the two sprockets (14) rotate at the top and bottom of the lifting rails (9), the chain drive box assembly (12) is fixed to one side of the lifting rails (9), and a drive chain (13) is connected to the chain drive box assembly (12) for transmission, and the two ends of the drive chain (13) respectively pass around the two sprockets (14) and are fixed to the lifting frame (10).

4. The crawler self-propelled multifunctional tunnel excavation stand trolley according to claim 3, characterized in that: The first chain drive system further includes a drive assembly, the drive assembly including a motor reducer (15), the motor reducer (15) being fixed on one side of the frame (1), the output ends on both sides of the motor reducer (15) being fixedly connected to transmission rods (16), and the two transmission rods (16) being respectively fixed to the input ends of the two chain drive box assemblies (12).

5. The crawler self-propelled multifunctional tunnel excavation stand trolley according to claim 3, characterized in that: The arch frame moving mechanism (5) includes two trolley rails (27), both of which are fixed on the top of the frame (1), a longitudinal sliding frame (24) is slidably connected between the trolley rails (27), and a longitudinal transfer trolley frame (25) is slidably connected to the top of the longitudinal sliding frame (24), and a second chain drive system (26) is installed between the longitudinal sliding frame (24) and the trolley rails (27), and the second chain drive system (26) has the same structure as the first chain drive system.

6. The crawler self-propelled multifunctional tunnel excavation stand trolley according to claim 1, characterized in that: The arch frame lifting mechanism (4) includes a lifting frame (17), one end of the lifting frame (17) is rotatably connected to a longitudinal guide rail (21), the top of the longitudinal guide rail (21) is slidably connected to an adjusting pulley (22), and also includes two guide sleeves (201), the two guide sleeves (201) are fixed to one end of the frame (1), one side of the two guide sleeves (201) is fixedly installed with a screw lift (20), the bottom of the lifting frame (17) is fixedly installed with two lifting screws (19) used in conjunction with the screw lift (20), the bottom of the lifting frame (17) is fixedly connected to two guide rods (18), and the two guide rods (18) are respectively plugged into the two guide sleeves (201).

7. The crawler self-propelled multifunctional tunnel excavation stand trolley according to claim 6, characterized in that: One side of the lifting frame (17) and the bottom of the longitudinal guide rail (21) are both rotatably connected with an adjusting screw rod (23), and a screw rod sleeve (231) for adjusting the angle of the longitudinal guide rail (21) is threadedly connected between the two adjusting screw rods (23).

8. The crawler self-propelled multifunctional tunnel excavation stand trolley according to claim 1, characterized in that: Hydraulic lifting legs (3) are fixedly mounted at the four corners of the bottom of the frame (1).

9. The crawler self-propelled multifunctional tunnel excavation stand trolley according to claim 1, characterized in that: Both sides of the frame (1) are rotatably connected to a working platform (7), and two hand chain hoists (8) for driving the working platform (7) to rotate are installed on the top of the frame (1), and the output ends of the two hand chain hoists (8) are respectively fixed to the two working platforms (7).

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