Needle beam lining trolley capable of passing through engineering truck
By improving the needle beam and beam frame structure and combining it with a traction device, the passage of engineering vehicles is achieved, solving the problem of simultaneous lining and excavation in the existing technology and improving tunnel construction efficiency.
Patent Information
- Application Number
- CN202423295394.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing needle beam lining trolley cannot accommodate engineering vehicles, resulting in the inability to carry out lining and excavation operations simultaneously during tunnel construction.
A plate-shaped needle beam is designed with rectangular grooves on its left and right sides. The beam frame consists of left and right frames. The frames are equipped with detachable foot pedals and multiple pairs of rollers. Combined with the traction device, the needle beam and the beam frame can be moved alternately to allow engineering vehicles to pass through.
It enables lining and excavation operations to be carried out simultaneously during tunnel construction, thus improving construction efficiency.
Smart Images
Figure CN223447063U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel engineering equipment, in particular to a needle beam lining trolley capable of passing an engineering vehicle. Background Art
[0002] The needle beam lining trolley is a special equipment used for full-section lining of tunnels. Figures 1-4 The existing needle beam steel formwork trolley is mainly composed of a beam frame 10, a needle beam 20, a formwork cylinder 40, a steel formwork 50 and a traction device. Lifting cylinders are provided at both ends of the needle beam and the beam frame, an upper guide roller is provided at the top of the beam frame, and a lower guide roller is provided at the bottom of the beam frame. Tracks corresponding to the upper guide roller and the lower guide roller are provided on the needle beam.
[0003] Refer to the attached Figure 1-2 When the beam frame moves forward, the lifting cylinders at both ends of the needle beam extend to lift the needle beam as a whole. At this time, the track on the top of the needle beam contacts the upper guide roller, and then the traction device is used to drag the beam frame forward. After the movement, the lifting cylinders at both ends of the beam frame extend and support the ground. Figure 3-4 When the needle beam moves forward, the lifting cylinders at both ends of the needle beam contract. At this time, the needle beam drops as a whole, and the track at the bottom of the needle beam contacts the lower guide roller, and then the traction device is used to drag the needle beam forward.
[0004] The beam frame is designed as a frame because it requires a human operator to stand on top of it. The needle beam is also designed as a frame because the frame structure provides strength and facilitates the installation of guide rollers and tracks between the beam frame and the needle beam. However, this design also has obvious drawbacks: the needle beam is limited in height, and only human personnel can pass through it, not construction vehicles such as excavators, loaders, and dump trucks. This makes it impossible to carry out lining and excavation operations simultaneously during tunnel construction. Utility Model Content
[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a needle beam lining trolley capable of passing engineering vehicles. Its purpose is that engineering vehicles can pass through the needle beam lining trolley, and lining operations and excavation operations can be carried out simultaneously during tunnel construction.
[0006] Specifically, the present invention adopts the following technical solutions:
[0007] The utility model provides a needle beam lining trolley which can pass engineering vehicles, comprising a needle beam, a beam frame and a traction device; the needle beam is plate-shaped, and a rectangular groove is arranged on the left and right sides of the needle beam in the axial direction; the beam frame is composed of a bottom frame, a left frame and a right frame, a detachable footboard is arranged on the upper part of the left frame and the right frame, and at least two pairs of horizontal rollers and two pairs of vertical rollers are arranged on the lower part of the left frame and the right frame; the vertical rollers are in contact with the left and right sides of the needle beam and are used for limiting the transverse degree of freedom of the needle beam; the groove width of the rectangular groove is greater than the diameter of the horizontal rollers; during operation, the horizontal rollers are in contact with the upper groove edge or the lower groove edge of the rectangular groove and are used for limiting the longitudinal degree of freedom of the needle beam.
[0008] Further improvement technical scheme, the front end and the rear end of needle beam are articulated with approach bridge and approach bridge rotation oil cylinder.
[0009] Further improvement technical scheme, the upper part of left frame and right frame is fixed with support block, footboard is horizontally placed on support block.
[0010] Further improvement technical scheme, the support block is equipped with jack, and the left and right ends of footboard are equipped with plug matched with jack.
[0011] Further improvement technical scheme, the traction device is composed of double cylinder winch and fixed pulley, and the double cylinder winch is installed at the rear end of needle beam, and the fixed pulley is installed at the front end of needle beam; one winch cylinder in the double cylinder winch is connected with the front end of beam frame through the fixed pulley and the steel wire rope, and the other winch cylinder is connected with the rear end of beam frame through the steel wire rope.
[0012] Further improvement technical scheme, the traction device is composed of motor, driving sprocket, driven sprocket and chain, the motor and the driving sprocket are installed at the rear end of needle beam, the driven sprocket is installed at the front end of needle beam, one end of the chain is connected with the rear end of beam frame, then the chain is sequentially wound around the driving sprocket, the driven sprocket and connected with the front end of beam frame.
[0013] After the above technical scheme is implemented, compared with the background technology, the utility model has the beneficial effects that:
[0014] The needle beam lining trolley sets the motion matching pair on the two sides of the needle beam and the beam frame, not only leaves the space for the engineering vehicles to pass through, but also enables the needle beam and the beam frame to move alternately.
[0015] The needle beam lining trolley also has the detachable footboard, after the footboard is installed, the staff can stand on the footboard to operate, and after the footboard is removed, the engineering vehicles can pass through the needle beam.
[0016] The needle beam lining trolley can pass through the engineering vehicles, and the tunnel lining operation and the excavation operation can be simultaneously carried out during construction, so that the construction efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] ATTACHFigure 1 Fig. 1 shows a front view of the existing needle beam lining trolley moving the beam frame.
[0018] Fig. 2 shows a side view of the existing needle beam lining trolley moving the beam frame. Figure 2
[0019] Fig. 3 shows a front view of the existing needle beam lining trolley moving the needle beam. Figure 3
[0020] Fig. 4 shows a side view of the existing needle beam lining trolley moving the needle beam. Figure 4
[0021] Fig. 5 shows a front view of the needle beam lining trolley of the embodiment 1 moving the beam frame. Figure 5
[0022] Fig. 6 shows a side view of the needle beam lining trolley of the embodiment 1 moving the beam frame. Figure 6
[0023] Fig. 7 shows a front view of the needle beam. Figure 7
[0024] Fig. 8 shows a side view of the beam frame. Figure 8
[0025] Fig. 9 shows a front view of the needle beam lining trolley of the embodiment 1 moving the needle beam. Figure 9
[0026] Fig. 10 shows a side view of the needle beam lining trolley of the embodiment 1 moving the needle beam. Figure 10
[0027] Fig. 11 shows a structure diagram of the traction device of the embodiment 1. Figure 11
[0028] Fig. 12 shows a structure diagram of the traction device of the embodiment 2. Figure 12
[0029] Fig. 13 shows a structure diagram of the traction device of the embodiment 3.
[0030] 10, beam frame; 11, left frame; 12, bottom frame; 13, right frame; 14, beam frame lifting oil cylinder; 15, footboard; 16, supporting block; 17, horizontal roller; 18, vertical roller;
[0031] 20, needle beam; 21, rectangular groove; 22, needle beam lifting oil cylinder; 23, approach bridge; 24, approach bridge rotating oil cylinder;
[0032] 30, traction device; 31, double drum winch; 32, fixed pulley; 33, steel wire rope; 34, motor; 35, driving sprocket; 36, driven sprocket; 37, chain; 38, tension sprocket;
[0033] 40, template oil cylinder;
[0034] 50, steel template. DETAILED DESCRIPTION
[0035] The preferred embodiments of the present application will be described below with reference to the drawings. It should be understood by those skilled in the art that the embodiments are merely used to explain the technical principles of the present application, and are not intended to limit the scope of protection of the present application. It should be noted that in the description of the present application, the terms "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the connection between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0036] Example 1: Appendix Figure 5 and Appendix Figure 6 A needle beam lining trolley that can pass engineering vehicles is shown, which comprises a beam frame 10, a needle beam 20 and a traction device, and the structure and function thereof will be described in detail below.
[0037] Referring to the drawings Figures 5-7 Unlike the existing frame-shaped needle beam 20, the needle beam 20 is in the form of a plate, and a rectangular groove 21 is provided on the left and right sides of the needle beam 20 in the axial direction, and a double drum winch 31 is provided at the bottom of the needle beam 20. A pair of needle beam lifting oil cylinders 22 are provided at the front end and the rear end of the needle beam 20 respectively, and the needle beam lifting oil cylinders 22 are used to lift the needle beam 20 horizontally. A drawbridge 23 and a drawbridge rotating oil cylinder 24 are also hinged at the front end and the rear end of the needle beam 20 respectively, and the drawbridge rotating oil cylinder 24 is used to lift or lower the drawbridge 23. When lining, the ground also needs to be poured with concrete, and cannot pass through, and the needle beam 20 and the drawbridge 23 form a trestle that can pass engineering vehicles through the pouring area.
[0038] Referring to the drawings Figure 8A pair of beam frame lifting oil cylinders 14 are arranged at the front and rear ends of the beam frame 10, and the telescopic ends of the beam frame lifting oil cylinders 14 are connected with steel formworks 50 for pouring the ground. When the beam frame lifting oil cylinders 14 are elongated and supported on the ground, the beam frame 10 can be lifted horizontally.
[0039] Unlike the existing frame-shaped beam frame, the beam frame 10 is composed of a left frame 11, a bottom frame 12 and a right frame 13, and a detachable footboard 15 is arranged at the upper part of the left frame 11 and the right frame 13. After the footboard 15 is installed, the workers can stand on the footboard 15 to perform the concrete pouring operation. After the footboard 15 is detached, the engineering vehicle can pass through the needle beam 20. In this embodiment, support blocks 16 are fixed at the upper part of the left frame 11 and the right frame 13, and the footboard 15 is horizontally placed on the support blocks 16. In order to prevent the footboard 15 from falling, a plug hole is arranged on the support block 16, and a plug is arranged at the left and right ends of the footboard 15 to cooperate with the plug hole. When the footboard 15 is installed, the plug is inserted into the plug hole.
[0040] A plurality of formwork oil cylinders 40 are connected to the outer side and the top of the left frame 11 and the right frame 13, and the telescopic ends of the formwork oil cylinders 40 are respectively connected with steel formworks 50 such as top arches and side arches. The formwork oil cylinders 40 have the function of making the steel formworks 50 fit together before lining, and making the steel formworks 50 retract after lining. Another function of the beam frame lifting oil cylinders 14 is that when the beam frame lifting oil cylinders 14 are elongated and supported on the ground, the ground steel formworks are spliced with other steel formworks to form a full-section lining pouring formwork.
[0041] Referring to the drawings Figures 5-10 Two pairs of horizontal rollers 17 and two pairs of vertical rollers 18 are arranged at the lower part of the left frame 11 and the right frame 13. The vertical rollers 18 are in contact with the left and right side surfaces of the needle beam 20, and are used to limit the lateral degree of freedom of the needle beam 20. The slot width of the rectangular slot 21 is greater than the diameter of the horizontal rollers 17. During operation, the horizontal rollers 17 are in contact with the upper slot edge or the lower slot edge of the rectangular slot 21, and are used to limit the longitudinal degree of freedom of the needle beam 20.
[0042] Referring to the drawings Figure 11 In this embodiment, the traction device 30 is composed of a double-drum winch 31 and a fixed pulley 32. The double-drum winch 31 is installed at the rear end of the needle beam 20, and the fixed pulley 32 is installed at the front end of the needle beam 20. One of the winch drums in the double-drum winch 31 has its steel wire rope 33 wound around the fixed pulley 32 and connected to the front end of the beam frame 10, and the other winch drum in the double-drum winch 31 has its steel wire rope 33 connected to the rear end of the beam frame 10. The fixed pulley 32 has the function of changing the force transmission direction of the steel wire rope 33. When the double-drum winch 31 rotates, one winch drum releases the rope, and the other winch drum winds the rope.
[0043] Working process: with the extension of the tunnel working face, the needle beam 20 and the beam frame 10 of the needle beam lining trolley are moved forward alternately.
[0044] Referring to the drawings Figure 5 and the drawings Figure 6 Before the beam frame 10 moves forward, the needle beam lifting oil cylinder 22 is supported on the ground, and the beam frame lifting oil cylinder 14 and the template oil cylinder 40 are retracted to demould. At this time, the two pairs of vertical rollers 18 on the left frame 11 and the right frame 13 are in contact with the left and right sides of the needle beam 20 respectively, forming a motion matching pair capable of limiting the transverse degree of freedom of the needle beam 20. Under the action of gravity, the two pairs of horizontal rollers 17 on the left frame 11 and the right frame 13 are in contact with the lower groove edges of the rectangular groove 21 respectively, forming a motion matching pair capable of limiting the longitudinal degree of freedom of the needle beam 20, so that the beam frame 10 can only move parallel to the needle beam 20.
[0045] When the beam frame 10 moves forward, the double-drum winch 31 rotates clockwise, one of the winch drums in the double-drum winch 31 retracts the wire, and the other winch drum releases the wire, and the beam frame 10 is dragged forward through the reversing of the fixed pulley 32. After moving to the position, the beam frame lifting oil cylinder 14 is elongated and supported on the ground.
[0046] Since the needle beam 20 is plate-shaped, the beam frame 10 has a detachable footboard 15. After the footboard 15 is removed, there is a high space above the needle beam 20, so during the period when the needle beam lifting oil cylinder 22 is supported on the ground, the engineering vehicle can pass through the needle beam 20.
[0047] Referring to the drawings Figure 9 and the drawings Figure 10 Before the needle beam 20 moves forward, the template oil cylinder 40 and the beam frame lifting oil cylinder 14 on the beam frame 10 top the steel templates 50 on the full section of the tunnel, and at this time the beam frame 10 is in a tight fixed state. When the needle beam 20 moves forward, the needle beam lifting oil cylinder 22 at both ends of the needle beam 20 is retracted, and at this time the needle beam 20 as a whole is lowered, and the horizontal rollers 17 on the left frame 11 and the right frame 13 are in contact with the upper groove edges of the rectangular groove 21. Then the double-drum winch 31 rotates counterclockwise, directly dragging the needle beam 20 to move forward.
[0048] In example 1, when the double-drum winch 31 rotates, the wire diameter of the steel wire rope 33 on the two winch drums changes over time, and there will always be a phenomenon that one winch drum releases less wire and the other winch drum retracts more wire, or one winch drum retracts less wire and the other winch drum releases more wire. Less wire release and more wire retraction will cause reverse dragging, and more wire release and less wire retraction will cause the steel wire rope 33 to be wound loosely and easily entangled.
[0049] Referring to the drawings Figure 12To solve the above problems, in this embodiment, the traction device 30 is composed of a motor 34, a driving sprocket 35, a driven sprocket 36, and a chain 37. The motor 34 and the driving sprocket 35 are installed at the rear end of the needle beam 20, and the driven sprocket 36 is installed at the front end of the needle beam 20. One end of the chain 37 is connected to the rear end of the beam frame 10, and then passes around the driving sprocket 35 and the driven sprocket 36 respectively to connect to the front end of the beam frame 10. When the motor 34 drives the driving sprocket 35 to rotate clockwise, the driven sprocket 36 changes direction and drags the beam frame 10 forward. When the motor 34 drives the driving sprocket 35 to rotate counterclockwise, it directly drags the needle beam 20 forward.
[0050] Since the sprocket chain transmission does not have the situation of less rope released and more rope collected or more rope released and less rope collected, the problems of reverse dragging, winding looseness and entanglement of the winch type traction device 30 are solved.
[0051] In order to prevent the chain 37 from sagging, a tensioning sprocket 38 is installed in the middle part of the needle beam 20.
[0052] Parts not described in detail are prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A needle beam lining trolley capable of passing an engineering vehicle, comprising a needle beam, a beam frame, and a traction device, characterized by: The needle beam is plate-shaped, and rectangular grooves are provided axially on the left and right sides of the needle beam; the beam frame is composed of a bottom frame, a left frame and a right frame, and a detachable foot pedal is provided on the upper part of the left frame and the right frame, and at least two pairs of horizontal rollers and two pairs of vertical rollers are provided on the lower part of the left frame and the right frame. The vertical rollers are in contact with the left and right sides of the needle beam to limit the lateral freedom of the needle beam; the width of the rectangular groove is greater than the diameter of the horizontal roller. When working, the horizontal rollers are in contact with the upper or lower groove edge of the rectangular groove to limit the longitudinal freedom of the needle beam.
2. The needle beam lining trolley capable of passing an engineering vehicle as claimed in claim 1, characterized in that: An approach bridge and an approach bridge rotating oil cylinder are hinged at the front and rear ends of the needle beam.
3. The needle beam lining trolley capable of passing an engineering vehicle as claimed in claim 1, characterized in that: Support blocks are fixed on the upper parts of the left frame and the right frame, and the foot pedals are horizontally placed on the support blocks.
4. The needle beam lining trolley capable of passing an engineering vehicle as claimed in claim 3, characterized in that: A socket is provided on the supporting block, and plugs matched with the socket are provided on the left and right ends of the foot pedal.
5. The needle beam lining trolley capable of passing an engineering vehicle as claimed in claim 1, characterized in that: The traction device consists of a double-drum winch and a fixed pulley, the double-drum winch is installed at the rear end of the needle beam, and the fixed pulley is installed at the front end of the needle beam; one of the winch drums in the double-drum winch has a wire rope that passes over the fixed pulley and is connected to the front end of the beam frame, and the other winch drum in the double-drum winch has a wire rope that is connected to the rear end of the beam frame.
6. The needle beam lining trolley capable of passing an engineering vehicle as claimed in claim 1, characterized in that: The traction device consists of a motor, a driving sprocket, a driven sprocket and a chain. The motor and the driving sprocket are installed at the rear end of the needle beam, and the driven sprocket is installed at the front end of the needle beam. One end of the chain is connected to the rear end of the beam frame, and then passes through the driving sprocket and the driven sprocket in sequence and is connected to the front end of the beam frame.