Arch frame mounting trolley with arch frame jacking longitudinal beam capable of being adjusted left and right

Abstract

The utility model discloses a lagging jack installation trolley with lagging jack jacking longitudinal beams capable of being adjusted left and right, which comprises a trolley main body, a lagging jack jacking device is arranged on the trolley main body, the lagging jack jacking device comprises two jacking longitudinal beams which are arranged in parallel along the longitudinal direction of the trolley, and a plurality of lagging jack carrying trolleys are arranged on each jacking longitudinal beam. The jacking longitudinal beam is driven to ascend and descend based on the jacking oil cylinders at the two ends respectively. The jacking device further comprises two bearing cross beams, the bearing cross beams are arranged between the jacking oil cylinders and the jacking longitudinal beams, the same ends of the two jacking longitudinal beams can be transversely and movably arranged on the same bearing cross beam, and position adjusting devices used for adjusting the transverse positions of the jacking longitudinal beams are connected between the jacking longitudinal beams and the bearing cross beams. The device has the advantages that the jacking longitudinal beam is arranged to be of a structure with the left-right position adjustable, adjustment of the left-right position and the left-right deflection angle is achieved through the position adjusting device, and the purpose that the in-place position of an arch frame is accurate is achieved. Labor intensity can be relieved, potential safety hazards are reduced or eliminated, and arch frame installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel operation trolley, in particular to an arch frame mounting trolley with left-right adjustable arch frame jacking longitudinal beams. BACKGROUND

[0002] In tunnel construction of railway or highway, steel arch frame needs to be erected at the excavation section of soft surrounding rock. The existing arch frame mounting method is to hoist the arch frame above the mounting trolley from one end of the trolley, then transfer the arch frame to the arch frame carrying trolley on the trolley, transport the arch frame to the position below the mounting position by the carrying trolley, finally, jacking the arch frame to the mounting height by the jacking device on the trolley, and fixing it on the excavated tunnel wall by anchor rod. This method requires the arch frame to be in the middle position of the tunnel width, otherwise, left-right adjustment of the arch frame is needed after jacking to the mounting height. The existing arch frame mounting method can only rely on manual pushing and pulling for left-right adjustment, which is labor-intensive and has safety hazards. Therefore, improvement is needed to reduce labor intensity, improve arch frame mounting efficiency, and reduce or eliminate safety hazards. SUMMARY

[0003] The utility model aims at the defect that the existing arch frame trolley needs to rely on manual left-right adjustment during arch frame mounting, and provides an arch frame mounting trolley with left-right adjustable arch frame jacking longitudinal beams. The jacking longitudinal beams are set to be adjustable in left-right position, so that when the arch frame deviates from the ideal position and needs to be adjusted left-right during arch frame mounting and positioning, the left-right position of the arch frame is adjusted by the position adjusting device, achieving the purpose of accurate arch frame positioning. Compared with the existing manual pushing and pulling adjustment method, labor intensity is reduced, safety hazards are reduced or eliminated, and arch frame mounting efficiency is improved.

[0004] To achieve the foregoing purposes, the utility model adopts the following technical solutions.

[0005] An arch frame mounting trolley with left-right adjustable arch frame jacking longitudinal beams comprises a trolley main body, an arch frame jacking device provided on the trolley main body, the arch frame jacking device comprising two jacking longitudinal beams arranged in parallel along the longitudinal direction of the trolley, a plurality of arch frame carrying trolleys provided on each jacking longitudinal beam, and each jacking longitudinal beam driven to lift by a jacking oil cylinder at each end; two bearing crossbeams are further included, which are provided between the jacking oil cylinder and the jacking longitudinal beam, the same end of the two jacking longitudinal beams is movably provided on the same bearing crossbeam, and a position adjusting device capable of adjusting the transverse position of the jacking longitudinal beam is connected between the jacking longitudinal beam and the bearing crossbeam.

[0006] The utility model discloses a preceding scheme, through setting up the jacking longitudinal beam into the structure of adjustable left and right position, when needing left and right adjustment when the arch frame deviates from the ideal centerline position during the installation of the arch frame, the left and right position of the jacking longitudinal beam is adjusted by the position adjusting device, and the purpose of accurate installation position of the arch frame is achieved. Compared with the prior art manual push-pull adjustment mode, the utility model can reduce labor intensity, reduce or eliminate safety hazards and improve the installation efficiency of the arch frame. The two jacking longitudinal beams can be fixedly connected together through the connecting rod or form a parallelogram four-bar mechanism through the hinged connecting rod at both ends, so that the two jacking longitudinal beams have the structure of synchronous left and right movement. In addition, the position adjusting device can be a hydraulic power oil cylinder driven adjustment or an electric or manual position adjusting device of the screw nut pair structure. In order to facilitate adjustment, preferably, a position adjusting device is arranged at both ends of the load bearing cross beam, so that the jacking longitudinal beam is uniformly stressed during left and right position adjustment, and the adjustment effect is ensured.

[0007] Preferably, the load bearing cross beam is provided with a load bearing trolley based on roller movement, and the two ends of the jacking longitudinal beam are arranged on the load bearing trolleys respectively. The load bearing trolley based on roller movement can reduce the movement resistance of the jacking longitudinal beam and improve the convenience of position adjustment.

[0008] Further preferably, one end of the jacking longitudinal beam is hinged to the corresponding load bearing trolley through a column hole matching structure, and the other end is connected to the other load bearing trolley through the cooperation of the pin shaft and the long hole. When the two load bearing trolleys move relative to each other, the longitudinal axis of the jacking longitudinal beam changes the angle with the longitudinal axis of the trolley body, which can be used for adjusting the left and right swing angle of the trolley body when the longitudinal axis of the trolley body is not parallel to the center line of the tunnel.

[0009] Further preferably, the load bearing trolley is provided with a load bearing roller and an anti-skid roller, the load bearing roller is in rolling contact with the top surface of the load bearing cross beam, and the anti-skid roller is located on both sides of the load bearing cross beam and can be in rolling contact with the side surface of the load bearing cross beam. The anti-skid roller can effectively prevent the trolley from skidding, and through the anti-skid measures, the arch frame on the jacking longitudinal beam is prevented from swinging along the longitudinal direction of the trolley, the movement stability during adjustment is maintained, and the safety during adjustment is ensured.

[0010] Still further preferably, the load bearing cross beam is in the form of an H-shaped steel structure, and the load bearing trolley is further provided with anti-tipping rollers symmetrically left and right, the roller shafts of the load bearing rollers and the anti-tipping rollers are parallel to each other, and the two form clamping on the upper flange of the H-shaped steel. The load bearing trolley can prevent the load bearing cross beam from being pressed longitudinally, that is, the trolley is tilted transversely, so that the arch frame does not slide transversely, and the left and right automatic centering function of the two jacking longitudinal beams is maintained.

[0011] Further preferably, a rectangular tube is welded on the inner wall surface of the upper flange plate of the H-shaped steel of the load bearing cross beam, the outer side surface of the rectangular tube is flush with the outer side surface of the upper flange plate of the H-shaped steel of the load bearing cross beam; the anti-overturning roller can rollingly contact the corresponding side surface of the rectangular tube. The rectangular tube is used to increase the span between the load bearing rollers and the anti-overturning rollers, and the contact area between the anti-side-sliding rollers and the load bearing cross beam, thereby improving the motion stability of the load bearing trolley.

[0012] Further preferably, two coaxial load bearing rollers are arranged at the same longitudinal position along the motion direction of the load bearing trolley; the two load bearing rollers, the two anti-side-sliding rollers and the two anti-overturning rollers at the same longitudinal position form a roller set; and two roller sets are arranged on the load bearing trolley. The stability is further improved.

[0013] Further preferably, the position adjusting device is composed of an adjusting oil cylinder, and the two ends of the adjusting oil cylinder are respectively hingedly connected to the load bearing trolley and the load bearing cross beam. The position adjusting device is used to adjust the position of the load bearing trolley, change the position of the jacking longitudinal beam, and realize the centering adjustment of the arch.

[0014] The utility model discloses the beneficial effects are: the jacking longitudinal beam is set to the structure that left and right positions can be adjusted, and the left and right positions and the left and right deflection angle are adjusted by the position adjusting device, so that the arch is accurately positioned. Labor intensity can be reduced, and safety hazards can be reduced or eliminated, and arch installation efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic axonometric drawing of the utility model.

[0016] Figure 2 It is the structure schematic axonometric drawing of the arch jacking device in the utility model.

[0017] Figure 3 It is the structure schematic axonometric drawing of the utility model Figure 2 in A part.

[0018] Figure 4 It is the structure schematic front view of the relevant part of load bearing cross beam and load bearing trolley in the utility model, wherein the load bearing trolley shown is the structure with long hole on the top plate.

[0019] Figure 5 It is the structure schematic front view of the relevant part of load bearing cross beam and load bearing trolley in the utility model. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with the drawings, but will not therefore limit the utility model in the embodiment range described.

[0021] Reference Figure 1 , Figure 2 , Figure 3、 Figure 4 and Figure 5 The arch frame jacking longitudinal beam left and right adjustable arch frame installation trolley comprises a trolley body 1, an arch frame jacking device is arranged on the trolley body 1, the arch frame jacking device comprises two jacking longitudinal beams 2 arranged in parallel along the longitudinal direction of the trolley, a plurality of arch frame carrying trolleys 3 are arranged on each jacking longitudinal beam 2, and each jacking longitudinal beam 2 is driven to lift based on a jacking oil cylinder 4 at each end thereof; the trolley body 1 further comprises two bearing cross beams 5, the bearing cross beams 5 are arranged between the jacking oil cylinders 4 and the jacking longitudinal beams 2, the same end of each jacking longitudinal beam 2 is movably arranged on the same bearing cross beam 5, and a position adjusting device capable of adjusting the transverse position of the jacking longitudinal beam 2 is connected between the jacking longitudinal beam 2 and the bearing cross beam 5. The trolley body 1 is further provided with an arch frame lifting device 8 for two-point or four-point lifting, the arch frame lifting device 8 is used for lifting the arch frame on the ground of the tunnel from the trolley opening end and transferring the arch frame to the arch frame carrying trolley 3, and each arch frame is jointly lifted by one arch frame carrying trolley 3 on each jacking longitudinal beam 2.

[0022] The two jacking longitudinal beams 2 are respectively hinged with a connecting rod 9 at the two ends, and the two jacking longitudinal beams 2 and the two connecting rods 9 form a parallelogram four-bar mechanism. The bearing cross beam 5 is provided with a bearing trolley 7 based on roller movement; the two ends of the jacking longitudinal beam 2 are respectively arranged on a bearing trolley 7. The two end portions of the bearing cross beam 5 are each provided with a position adjusting device, the position adjusting device is composed of an adjusting oil cylinder 6, and the two ends of the adjusting oil cylinder 6 are respectively hinged on the bearing trolley 7 and the bearing cross beam 5. One end of the jacking longitudinal beam 2 is hinged with the corresponding bearing trolley 7 through a column hole matching structure (not shown in the drawing), and the other end is connected with the other bearing trolley 7 through the cooperation of the pin shaft and the long hole 7d.

[0023] The bearing trolley 7 is provided with a bearing roller 71 and an anti-skid roller 72, the bearing roller 71 is in rolling contact with the top surface of the bearing cross beam 5, and the anti-skid roller 72 is located on the side surface of the bearing cross beam 5 and can be in rolling contact with the side surface of the bearing cross beam 5. The bearing cross beam 5 is in the form of an H-shaped steel structure; the bearing trolley 7 is further provided with an anti-tipping roller 73, the anti-tipping roller 73 is parallel to the roller shaft of the bearing roller 71, and the two form clamping on the upper flange plate of the H-shaped steel. In order to increase the span between the bearing roller 71 and the anti-tipping roller 73 and the contact area between the anti-skid roller 72 and the bearing cross beam 5, and improve the movement stability of the bearing trolley 7, a rectangular tube 51 is welded on the inner wall surface of the upper flange plate of the H-shaped steel of the bearing cross beam 5, the outer side surface of the rectangular tube 51 is flush with the outer side surface of the upper flange plate of the H-shaped steel of the bearing cross beam 5, and the anti-tipping roller 73 can be in rolling contact with the corresponding side surface of the rectangular tube 51.

[0024] To improve the stability of the trolley 7 during adjustment, rectangular tubes 51 are welded to the inner walls of both sides of the H-shaped steel flange of the bearing beam 5, and anti-slip rollers 72 are provided on both sides of the bearing beam 5; anti-tipping rollers 73 are provided on both sides of the trolley 7; and along the longitudinal direction of the trolley 7, two coaxial bearing rollers 71 are provided at the same position; the two bearing rollers 71, the two anti-slip rollers 72, and the two anti-tipping rollers 73 at the same position constitute a roller group; the trolley 7 is provided with two roller groups. This further improves stability.

[0025] In this embodiment, the position adjustment device can also be an electric or manual adjustment device with a lead screw and nut pair structure.

[0026] In this embodiment, the carrying trolley 7 includes a top plate 7a connected to the lifting longitudinal beam 2. Partition plates 7b are welded onto the top plate 7a. The partition plates 7b extend vertically downwards from both sides and then extend towards the middle, forming a symmetrical L-shape on both sides. Multiple longitudinally extending connecting plates 7c are welded together between the two partition plates 7b. Corresponding rollers are installed between each pair of longitudinally extending connecting plates via roller shafts. A roller assembly is provided between two partition plates 7b. Figure 4 This is the state with the outer end partition 7b removed. The top plate 7a of the supporting trolley 7 at one end of the lifting longitudinal beam 2 has a circular through hole. A pin is fixedly connected to the corresponding end of the lifting longitudinal beam 2, and this pin engages with the circular through hole to allow the lifting longitudinal beam 2 to rotate relative to the supporting trolley 7, swinging left and right. The top plate 7a of the supporting trolley 7 at the other end of the lifting longitudinal beam 2 has an elongated hole 7d. Another pin is fixedly connected to the corresponding end of the lifting longitudinal beam 2, and this pin engages with the elongated hole 7d. The extension direction of the elongated hole 7d is perpendicular to the movement direction of the supporting trolley 7, so that by driving the supporting trolley 7 to move, the lifting longitudinal beam 2 can be tilted around the axis of the pin at the other end, achieving angle adjustment.

[0027] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An arch frame installation trolley with adjustable left and right lifting longitudinal beams, comprising a trolley body (1), an arch frame lifting device on the trolley body (1), the arch frame lifting device comprising two lifting longitudinal beams (2) arranged parallel to each other along the longitudinal direction of the trolley, each lifting longitudinal beam (2) being provided with multiple arch frame transport trolleys (3), the lifting longitudinal beams (2) being driven to lift and lower based on a lifting hydraulic cylinder (4) at each end; characterized in that, It also includes two supporting crossbeams (5), which are located between the lifting cylinder (4) and the lifting longitudinal beam (2). The same end of the two lifting longitudinal beams (2) is movably mounted on the same supporting crossbeam (5). A position adjustment device that can adjust the lateral position of the lifting longitudinal beam (2) is connected between the lifting longitudinal beam (2) and the supporting crossbeam (5).

2. The arch frame installation trolley with adjustable longitudinal beams for lifting the arch frame as described in claim 1, characterized in that, Each end of the two lifting longitudinal beams (2) is hinged to a connecting rod (9), and the two lifting longitudinal beams (2) and the two connecting rods (9) form a parallelogram four-bar linkage.

3. The arch frame installation trolley with adjustable longitudinal beams for lifting the arch frame as described in claim 1, characterized in that, The load-bearing crossbeam (5) is provided with a load-bearing trolley (7) that moves based on rollers; the two ends of the lifting longitudinal beam (2) are respectively provided on a load-bearing trolley (7).

4. The arch frame installation trolley with adjustable longitudinal beams for lifting the arch frame as described in claim 3, characterized in that, One end of the lifting longitudinal beam (2) is hinged to the corresponding carrying trolley (7) through a column hole fitting structure, and the other end is connected to another carrying trolley (7) through a pin shaft fitting with a long strip hole.

5. The arch frame installation trolley with adjustable left and right arch frame lifting longitudinal beam according to claim 3, characterized in that, The carrying trolley (7) is equipped with a carrying roller (71) and an anti-slip roller (72). The carrying roller (71) rolls in contact with the top surface of the carrying beam (5), and the anti-slip roller (72) is located on both sides of the carrying beam (5) and can roll in contact with the side of the carrying beam (5).

6. The arch frame installation trolley with adjustable left and right arch frame lifting longitudinal beam according to claim 5, characterized in that, The load-bearing crossbeam (5) is an H-shaped steel structure; the load-bearing trolley (7) is also symmetrically provided with anti-tipping rollers (73), the roller shafts of the anti-tipping rollers (73) and the load-bearing rollers (71) are parallel to each other, and the two form a clamp on the upper flange of the H-shaped steel.

7. The arch frame installation trolley with adjustable left and right arch frame lifting longitudinal beams according to claim 6, characterized in that, A rectangular tube (51) is welded to the inner wall of the upper flange of the H-beam of the bearing beam (5). The outer side of the rectangular tube (51) is flush with the outer side of the upper flange of the H-beam of the bearing beam (5). The anti-tipping roller (73) can roll in contact with the corresponding side of the rectangular tube (51).

8. The arch frame installation trolley with adjustable left and right arch frame lifting longitudinal beam according to claim 7, characterized in that, Along the moving direction of the carrying trolley (7), two coaxial carrying rollers (71) are provided at the same longitudinal position; the two carrying rollers (71), two anti-slip rollers (72) and two anti-tipping rollers (73) at the same longitudinal position constitute a roller group; the carrying trolley (7) is provided with two roller groups.

9. The arch frame installation trolley with adjustable left and right arch frame lifting longitudinal beam according to claim 3, characterized in that, Each of the bearing beams (5) is provided with a position adjustment device at both ends.

10. The arch frame installation trolley with adjustable left and right arch frame lifting longitudinal beam according to claim 9, characterized in that, The position adjustment device consists of an adjustment cylinder (6), with both ends of the adjustment cylinder (6) hinged to the carrying trolley (7) and the carrying beam (5), respectively.

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