CN223447063U - Needle beam lining trolley capable of passing engineering truck - Google Patents

Abstract

The needle beam lining trolley capable of passing through the engineering vehicle comprises a needle beam, a beam frame and a traction device, wherein the needle beam is plate-shaped, rectangular grooves are formed in the left side surface and the right side surface of the needle beam along the axial direction, the beam frame consists of a bottom frame, a left frame and a right frame, detachable pedals are arranged on the upper parts of the left frame and the right frame, at least two pairs of horizontal rollers and two pairs of vertical rollers are arranged on the lower parts of the left frame and the right frame, the vertical rollers are in contact with the left side surface and the right side surface of the needle beam and used for limiting the transverse freedom degree of the needle beam, the groove width of the rectangular grooves is larger than the diameter of the horizontal rollers, and the horizontal rollers are in contact with the upper groove edge or the lower groove edge of the rectangular grooves and used for limiting the longitudinal freedom degree of the needle beam when the needle beam is in operation. The needle beam lining trolley is arranged on two sides of the needle beam and the beam frame in a moving fit manner, so that not only is the space for the engineering vehicle to pass through opened, but also the needle beam and the beam frame can be alternately moved. The needle beam lining trolley can pass through an engineering vehicle, and can simultaneously carry out tunnel lining operation and excavation operation in construction, thereby greatly improving the construction efficiency.

Description

Needle beam lining trolley capable of passing engineering truck

Technical Field

The utility model relates to the technical field of tunnel engineering equipment, in particular to a needle beam lining trolley capable of passing through an engineering vehicle.

Background

The needle beam lining trolley is a special equipment for full section lining of tunnel. Referring to fig. 1 to 4, the existing needle beam steel mould trolley mainly comprises a beam frame 10, a needle beam 20, a template oil cylinder 40, a steel mould 50 and a traction device, wherein lifting oil cylinders are arranged at two ends of the needle beam and the beam frame, an upper guide roller is arranged at the top of the beam frame, a lower guide roller is arranged at the bottom of the beam frame, and a track corresponding to the upper guide roller and the lower guide roller is arranged on the needle beam.

Referring to fig. 1-2, when the beam frame moves forward, the lifting cylinders at the two ends of the needle beam extend to lift the needle beam integrally, at this time, the track at the top of the needle beam contacts with the upper guide roller, and then the beam frame is dragged to move forward by using the traction device, and the lifting cylinders at the two ends of the beam frame move and are extended and supported on the ground. Referring to fig. 3-4, when the needle beam moves forward, the lifting cylinders at the two ends of the needle beam shrink, at this time, the needle beam descends integrally, the rail at the bottom of the needle beam contacts with the lower guide roller, and then the traction device is used to drag the needle beam to move forward.

The beam frame is designed in a frame shape because the top of the beam frame needs to be operated by a standing person. The needle beam is also designed into a frame shape because the frame-shaped structure has good strength, and the guide roller and the rail are convenient to install between the beam frame and the needle beam. However, the defect of the design is obvious, namely the needle beam has limited height, and the interior of the needle beam can only pass through people and cannot pass through engineering vehicles such as an excavator, a loader, a dump truck and the like, so that lining operation and excavation operation cannot be simultaneously carried out in tunnel construction.

Disclosure of utility model

In order to overcome the defects in the background art, the utility model discloses a needle beam lining trolley capable of passing through an engineering vehicle, and the needle beam lining trolley can pass through the engineering vehicle, and can simultaneously perform lining operation and excavation operation in tunnel construction.

Specifically, the utility model adopts the following technical scheme:

The needle beam lining trolley capable of passing through the engineering vehicle comprises a needle beam, a beam frame and a traction device, wherein the needle beam is plate-shaped, rectangular grooves are formed in the left side surface and the right side surface of the needle beam along the axial direction, the beam frame consists of a bottom frame, a left frame and a right frame, detachable pedals are arranged on the upper parts of the left frame and the right frame, at least two pairs of horizontal rollers and two pairs of vertical rollers are arranged on the lower parts of the left frame and the right frame, the vertical rollers are in contact with the left side surface and the right side surface of the needle beam and used for limiting the transverse freedom degree of the needle beam, the groove width of the rectangular grooves is larger than the diameter of the horizontal rollers, and the horizontal rollers are in contact with the upper groove edge or the lower groove edge of the rectangular grooves and used for limiting the longitudinal freedom degree of the needle beam when the needle beam is in operation.

The technical scheme is further improved, and the front end and the rear end of the needle beam are hinged with an approach bridge and an approach bridge rotating oil cylinder.

Further improving the technical scheme, the upper parts of the left frame and the right frame are fixed with supporting blocks, and the foot pedals are horizontally arranged on the supporting blocks.

According to the technical scheme, the supporting block is provided with jacks, and plugs matched with the jacks are arranged at the left end and the right end of the pedal.

The traction device is composed of a double-drum winch and a fixed pulley, wherein the double-drum winch is arranged at the rear end of the needle beam, the fixed pulley is arranged at the front end of the needle beam, one winch drum in the double-drum winch is connected with the front end of the beam frame by bypassing the fixed pulley, and the other winch drum in the double-drum winch is connected with the rear end of the beam frame by the steel wire rope.

Further improvement technical scheme, draw gear comprises motor, driving sprocket, driven sprocket and chain, and motor and driving sprocket are installed in the rear end of needle beam, and driven sprocket installs the front end at the needle beam, and the rear end at the roof beam frame is connected to the one end of chain, then walks around driving sprocket, driven sprocket in proper order and connects the front end at the roof beam frame.

After the technical scheme is implemented, compared with the background technology, the utility model has the beneficial effects that:

The needle beam lining trolley is arranged on two sides of the needle beam and the beam frame in a moving fit manner, so that not only is the space for the engineering vehicle to pass through opened, but also the needle beam and the beam frame can be alternately moved.

The needle beam lining trolley is also provided with a detachable pedal, a worker can stand on the pedal to operate after the pedal is installed, and the engineering trolley can pass through the needle beam after the pedal is removed.

The needle beam lining trolley can pass through an engineering vehicle, and can simultaneously carry out tunnel lining operation and excavation operation in construction, thereby greatly improving the construction efficiency.

Drawings

Fig. 1 is a schematic forward view of a prior art needle beam lining trolley when moving a beam frame.

Fig. 2 is a schematic side view of a prior art needle beam lining trolley moving a beam frame.

Fig. 3 is a schematic forward view of a prior art needle beam lining trolley when the needle beam is moved.

Fig. 4 is a schematic side view of a prior art needle beam lining trolley when the needle beam is moved.

Fig. 5 is a schematic view showing the forward direction of the needle beam lining trolley in example 1 when the girder frame is moved.

Fig. 6 is a schematic side view showing the movement of the girder frame of the needle girder lining trolley of example 1.

Fig. 7 shows a schematic view of the forward structure of the needle beam.

Fig. 8 shows a schematic view of the forward structure of the beam frame.

Fig. 9 is a schematic forward view showing the movement of the needle beam by the present needle beam lining trolley in example 1.

Fig. 10 is a schematic side view showing the movement of the needle beam by the present needle beam lining trolley in example 1.

Fig. 11 is a schematic view showing the structure of the traction device in embodiment 1.

Fig. 12 is a schematic view showing the structure of the traction device in embodiment 2.

Drawings

10. Beam frame, 11, left frame, 12, bottom frame, 13, right frame, 14, beam frame lifting cylinder, 15, foot pedal, 16, supporting block, 17, horizontal roller, 18, vertical roller;

20. needle beam, 21, rectangular groove, 22, needle beam lifting cylinder, 23, approach bridge, 24, approach bridge rotating cylinder;

30. the traction device, 31, a double-drum winch, 32, a fixed pulley, 33, a steel wire rope, 34, a motor, 35, a driving sprocket, 36, a driven sprocket, 37, a chain, 38 and a tensioning sprocket;

40. A template cylinder;

50. and (5) steel molding plates.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model. It should be noted that, in the description of the present utility model, terms such as "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. It should also be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Example 1 fig. 5 and 6 show a needle beam lining trolley which can pass through an engineering vehicle, comprising a beam frame 10, a needle beam 20 and a traction device, the structure and function of which are specifically described below.

Reference is made to fig. 5-7. Unlike the conventional frame-shaped needle bar 20, the needle bar 20 has a plate shape, rectangular grooves 21 are provided in the axial direction on the right and left side surfaces of the needle bar 20, and a double drum hoist 31 is provided at the bottom of the needle bar 20. A pair of needle beam lifting cylinders 22 are respectively provided at the front and rear ends of the needle beam 20, and the needle beam lifting cylinders 22 are used for lifting the needle beam 20 horizontally. The front end and the rear end of the needle beam 20 are also hinged with a bridge approach 23 and a bridge approach rotating oil cylinder 24 respectively, and the bridge approach rotating oil cylinder 24 is used for lifting the bridge approach 23 or dropping the bridge approach 23. The ground is also poured with concrete during lining, and the truck cannot pass through, and the needle beam 20 and the approach bridge 23 form a trestle which can enable the engineering truck to pass through the pouring area.

Reference is made to fig. 8. A pair of beam frame lifting cylinders 14 are respectively arranged at the front end and the rear end of the beam frame 10, the telescopic ends of the beam frame lifting cylinders 14 are connected with a steel template 50 for pouring the ground, and the beam frame 10 can be lifted horizontally when the beam frame lifting cylinders 14 extend and are supported on the ground.

Unlike the conventional girder frame, the girder frame 10 is composed of a left frame 11, a bottom frame 12 and a right frame 13, and a detachable foot pedal 15 is provided at the upper portions of the left frame 11 and the right frame 13. After installing the foot pedal 15, a worker can stand on the foot pedal 15 to perform a concrete pouring operation. After the foot pedal 15 is removed, the truck can pass over the needle beam 20. In the present embodiment, support blocks 16 are fixed to upper portions of the left and right frames 11 and 13, and the foot boards 15 are horizontally placed on the support blocks 16. In order to prevent the foot pedal 15 from falling, the support block 16 is provided with insertion holes, and plugs matched with the insertion holes are provided at the left and right ends of the foot pedal 15, and the plugs are inserted into the insertion holes when the foot pedal 15 is mounted.

The outer sides and the top of the left frame 11 and the right frame 13 are connected with a plurality of template cylinders 40, and the telescopic ends of the template cylinders 40 are respectively connected with steel templates 50 such as a top arch, an side arch and the like. The function of the template cylinder 40 is to splice the steel templates 50 together by elongation before lining, and to retract and demold the steel templates 50 after lining. Another function of the beam frame lifting cylinder 14 is to splice the ground steel form with other steel forms into a full section lining pouring form when the beam frame lifting cylinder 14 extends and is supported on the ground.

Reference is made to fig. 5-10. Two pairs of horizontal rollers 17 and two pairs of vertical rollers 18 are provided at lower portions of the left and right frames 11 and 13, and the vertical rollers 18 are in contact with left and right sides of the needle beam 20 for restricting the lateral degree of freedom of the needle beam 20. The rectangular groove 21 has a groove width larger than the diameter of the horizontal roller 17, and in operation, the horizontal roller 17 contacts the upper groove side or the lower groove side of the rectangular groove 21 to limit the longitudinal freedom of the needle beam 20.

Reference is made to fig. 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 double-drum winders 31 has a wire rope 33 connected to the front end of the girder frame 10 around the fixed pulley 32, and the other one of the double-drum winders 31 has a wire rope 33 connected to the rear end of the girder frame 10. The function of the fixed pulley 32 is to change the force transmission direction of the wire rope 33. When the double-drum hoist 31 rotates, one hoist drum unwinds the rope and the other hoist drum receives the rope.

The needle beam 20 and the beam frame 10 of the needle beam lining trolley alternately move forward along with the extension of the tunnel working surface.

Reference is made to fig. 5 and 6. Before the beam frame 10 moves, the needle beam lifting cylinder 22 is supported on the ground, and the beam frame lifting cylinder 14 and each template cylinder 40 retract and release. At this time, the two pairs of vertical rollers 18 on the left and right frames 11, 13 are respectively in contact with the left and right side surfaces of the needle beam 20, forming a kinematic pair capable of restricting the lateral 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 respectively contacted with the lower groove edges of the rectangular grooves 21 to form a motion matching pair capable of limiting the longitudinal freedom degree of the needle beam 20, so that the beam frame 10 can only move parallel to the needle beam 20.

When the beam frame 10 moves forwards, the double-drum windlass 31 rotates clockwise, one winding drum in the double-drum windlass 31 receives ropes, the other winding drum releases the ropes, and the beam frame 10 is dragged to move forwards through reversing of the fixed pulleys 32. After moving into place, the beam lift cylinders 14 extend and are supported on the ground.

Since the needle beam 20 has a plate shape, the beam frame 10 has a detachable foot pedal 15, and a high space is provided above the needle beam 20 after the foot pedal 15 is detached, the truck can pass over the needle beam 20 while the needle beam lift cylinder 22 is supported on the ground.

Reference is made to fig. 9 and 10. Before the needle beam 20 moves forward, the template cylinder 40 and the beam frame lifting cylinder 14 on the beam frame 10 push each steel template 50 against the full section of the tunnel, and the beam frame 10 is in a tightly-supported and fixed state. When the needle beam 20 moves forwards, the needle beam lifting cylinders 22 at the two ends of the needle beam 20 contract, the needle beam 20 descends integrally, and the horizontal rollers 17 on the left frame 11 and the right frame 13 are contacted with the upper groove edges of the rectangular grooves 21. Then the double drum hoist 31 rotates counterclockwise, directly dragging the needle bar 20 forward.

In embodiment 2, in embodiment 1, when the double-drum hoist 31 rotates, the diameters of the wire ropes 33 on the two hoist drums change at any time, and there is always a phenomenon that one hoist drum is less in rope unwinding and the other hoist drum is more in rope unwinding, or one hoist drum is less in rope unwinding and the other hoist drum is more in rope unwinding. The reverse drag is caused by less rope unwinding and more rope winding, the winding and loosening of the steel wire rope 33 are caused by more rope unwinding and less rope winding, and the winding is easy.

Reference is made to fig. 12. In order to solve the above-mentioned problems, in the present embodiment, the traction device 30 is composed of a motor 34, a driving sprocket 35, a driven sprocket 36 and a chain 37, wherein the motor 34 and the driving sprocket 35 are installed at the rear end of the needle beam 20, the driven sprocket 36 is installed at the front end of the needle beam 20, one end of the chain 37 is connected at the rear end of the beam frame 10, and then the driving sprocket 35 and the driven sprocket 36 are respectively wound around and connected at the front end of the beam frame 10. When the motor 34 drives the driving sprocket 35 to rotate clockwise, the beam frame 10 is dragged to move forward by reversing the driven sprocket 36. When the motor 34 drives the driving sprocket 35 to rotate anticlockwise, the needle beam 20 is directly dragged to move forwards.

Because the chain wheel and chain transmission does not have the conditions of less rope unwinding, more rope winding or more rope unwinding and less rope winding, the problem that the winch type traction device 30 is easy to drag reversely, wind and loosen and wind is solved.

In order to prevent the chain 37 from sagging, a tension sprocket 38 is installed at the middle portion of the needle beam 20.

The parts not described in detail are prior art. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (6)

1. The needle beam lining trolley capable of passing through the engineering vehicle comprises a needle beam, a beam frame and a traction device, and is characterized in that the needle beam is plate-shaped, rectangular grooves are formed in the left side surface and the right side surface of the needle beam along the axial direction, the beam frame is composed of a bottom frame, a left frame and a right frame, detachable foot pedals are arranged on the upper parts of the left frame and the right frame, at least two pairs of horizontal rollers and two pairs of vertical rollers are arranged on the lower parts of the left frame and the right frame, the vertical rollers are in contact with the left side surface and the right side surface of the needle beam and used for limiting the transverse freedom degree of the needle beam, the groove width of each rectangular groove is larger than the diameter of each horizontal roller, and the horizontal rollers are in contact with the upper groove edge or the lower groove edge of each rectangular groove and used for limiting the longitudinal freedom degree of the needle beam when the needle beam is in operation.

2. The needle beam lining trolley capable of passing through an engineering vehicle as claimed in claim 1, wherein the front end and the rear end of the needle beam are hinged with an approach bridge and an approach bridge rotating cylinder.

3. The needle beam lining trolley for the engineering truck according to claim 1, wherein the upper parts of the left frame and the right frame are fixedly provided with supporting blocks, and the foot pedals are horizontally arranged on the supporting blocks.

4. The needle beam lining trolley for the engineering truck as claimed in claim 3, wherein the supporting block is provided with jacks, and plugs matched with the jacks are arranged at the left end and the right end of the pedal.

5. The needle beam lining trolley capable of passing through an engineering vehicle according to claim 1, wherein the traction device comprises a double-drum winch and a fixed pulley, the double-drum winch is arranged at the rear end of the needle beam, the fixed pulley is arranged at the front end of the needle beam, one winch drum in the double-drum winch is connected with the front end of a beam frame by bypassing the fixed pulley, and the other winch drum in the double-drum winch is connected with the rear end of the beam frame by a steel wire rope.

6. The needle beam lining trolley capable of passing through the engineering vehicle as claimed in claim 1, wherein the traction device consists of a motor, a driving sprocket, a driven sprocket and a chain, wherein the motor and the driving sprocket are arranged at the rear end of the needle beam, the driven sprocket is arranged at the front end of the needle beam, one end of the chain is connected at the rear end of the beam frame, and then the driving sprocket and the driven sprocket are sequentially wound around and connected at the front end of the beam frame.