Transverse moving power device for railway box girder

Abstract

The utility model provides a railway box girder transverse moving power device, which comprises a slide way, a transverse moving power device, a transverse moving power device, a transverse moving power device, a transverse moving power device and a transverse moving power device, and is characterized in that the slide way extends from a transverse moving starting point to a transverse moving end point; the continuous jack is arranged at one end, corresponding to the transverse moving starting point, of the sliding shoe, a traction cable penetrates through the interior of the continuous jack, the traction cable penetrates through the sliding shoe and then is connected to a counter-force seat, and the counter-force seat is fixed to one end, corresponding to the transverse moving terminal point, of the sliding way; a push plate corresponding to the continuous jack is arranged at the end part of the sliding shoe, and the pressure sensor is arranged between the push plate and the continuous jack; and the pressure sensor and the continuous jack are correspondingly connected to the controller. The driving mode of a power device is improved, one end of a traction cable is anchored on a counter-force seat, the other end of the traction cable penetrates through a sliding shoe, box girder transverse movement is achieved under pushing of a continuous jack through counter-force, the pushing force is monitored in real time through a pressure sensor in the pushing process, and therefore the pushing stability is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction equipment, and in particular relates to a railway box girder transverse moving power device. Background Art

[0002] With the rapid development of the economy and society, more and more high-speed railways have appeared in my country, and there are more and more steel truss swivel bridges across or near high-speed railways. In order to reduce the occupation of land, such bridges are relatively close to high-speed railways, especially bridges in the same direction as the high-speed railway line, which are closer to the high-speed railway line. During the construction of this type of bridge, it will be affected by the high-speed passenger trains passing at high speed, and the construction process has to be interrupted. In addition, the proximity to the high-speed railway will also affect the safety of high-speed railway operation. When constructing and installing steel box girders, they need to be assembled at the construction site, and equipment and personnel will stay next to the high-speed railway for a long time. Affected by the passing high-speed railway, the installation and construction efficiency of the steel box girder is low, and there is a great safety risk.

[0003] In the existing related technology, the box girder can be assembled on the side of the bridge to be constructed through a slideway, and then slid into place by lateral movement. In this way, the box girder can be as far away from the existing high-speed railway as possible during the assembly process. In the current technology, it is generally driven by a hydraulic rod or a winch as a power device, but the box girder has a large weight and the winch is difficult to drive. The length of the hydraulic cylinder is limited, and the position of the hydraulic cylinder needs to be adjusted according to the sliding position. Continuous advancement cannot be achieved, and the construction efficiency is low.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art. The utility model provides a railway box girder lateral movement power device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A railway box girder lateral movement power device, comprising:

[0008] A slideway, the slideway extending from a lateral movement starting point to a lateral movement end point, and a sliding shoe is slidably mounted on the slideway;

[0009] A continuous jack is provided at one end of the sliding shoe corresponding to the starting point of the lateral movement, a traction cable is inserted inside the continuous jack, and the traction cable passes through the sliding shoe and is connected to the reaction seat, and the reaction seat is fixed at one end of the slideway corresponding to the end point of the lateral movement;

[0010] A pressure sensor, wherein a push plate corresponding to the continuous jack is provided at the end of the sliding shoe, and the pressure sensor is provided between the push plate and the continuous jack;

[0011] The pressure sensor and the continuous jack are connected to the controller accordingly.

[0012] Preferably, the continuous jack comprises two center hole cylinders connected by a plurality of fixing columns, the two center hole cylinders extend along the same axial direction, and a clamping mechanism corresponding to the traction cable is provided at the end of the piston rod of each center hole cylinder.

[0013] Preferably, the clamping mechanism includes a main sleeve, a wedge block and an extrusion sleeve, the main sleeve is threadedly connected to the end of the piston rod of the center hole cylinder, the end of the inner hole of the main sleeve away from the piston rod of the center hole cylinder is a conical extrusion port, a plurality of wedge blocks extend into the conical extrusion port, the outer periphery of the main sleeve is connected to the extrusion sleeve through a plurality of extrusion rods, and the extrusion sleeve squeezes the wedge blocks into the conical extrusion port so that the wedge blocks hold the traction cable circumferentially.

[0014] Preferably, the plurality of wedge-shaped blocks are evenly distributed in the circumferential direction of the conical extrusion port, and there is a clearance gap between two adjacent wedge-shaped blocks;

[0015] The outer wall of the wedge block is a conical surface corresponding to the conical extrusion port, the inner wall of the wedge block is an arcuate surface corresponding to the traction cable, and an extrusion spring is provided between the wedge block and the end of the piston rod of the center hole cylinder so that the wedge block has a tendency to exit the conical extrusion port.

[0016] Preferably, there are a plurality of the fixing columns, and the plurality of the fixing columns are evenly distributed in the circumferential direction of the continuous jacks.

[0017] Preferably, a position sensor is provided at the position of the slideway corresponding to the end point of the lateral movement, and the position sensor is correspondingly connected to the control.

[0018] Beneficial effects: The driving mode of the power device is improved, with one end of the traction cable anchored on the reaction seat and the other end passing through the sliding shoe. The reaction force is used to achieve the lateral movement of the box girder under the propulsion of the continuous jack. During the propulsion process, the thrust size is monitored in real time by the pressure sensor to ensure the stability of the propulsion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0020] Figure 1 A simplified structural diagram of a power device in a specific embodiment provided by the utility model;

[0021] Figure 2 The present invention provides a schematic structural diagram of a continuous jack in a specific embodiment.

[0022] In the figure: 1, slideway; 2, traction cable; 3, reaction seat; 4, transverse end point; 5, box beam; 6, continuous jack; 7, sliding shoe; 601, center hole cylinder; 602, fixed column; 603, piston rod; 604, extrusion rod; 605, main sleeve; 606, extrusion sleeve; 607, wedge block; 608, extrusion spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0024] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0026] like Figure 1-2As shown, a railway box girder lateral movement power device includes a slideway 1, a continuous jack 6, and a pressure sensor. The slideway 1 extends from a lateral movement starting point to a lateral movement end point 4. The slideway 1 can be formed by splicing multiple sections of I-beams or box-type structures. A sliding shoe 7 is slidably mounted on the slideway 1. The upper surface of the sliding shoe 7 is a flat surface for supporting the box girder 5. At least two slideways 1 are supported at both ends of the box girder 5 by the sliding shoes 7. The lateral movement starting point is located outside the designed position of the box girder 5 to be constructed. The lateral movement end point 4 is located at the designed position of the box girder 5 to be constructed. A continuous jack 6 is provided at one end of the sliding shoe 7 corresponding to the lateral movement starting point. A traction cable 2 is inserted inside the continuous jack 6. The traction cable 2 passes through the sliding shoe 7 and is connected to the reaction seat 3. The continuous jack 6 can drive the traction cable 2. The reaction seat 3 passes through its internal center hole and is fixed at one end of the slideway 1 corresponding to the lateral movement end point 4, so that the continuous jack 6 pushes the sliding shoe 7 to drive the box girder 5. The end of the sliding shoe 7 is provided with a push plate corresponding to the continuous jack 6. The shape of the push plate is adapted to the shape of the end of the continuous jack 6 and is fixed to the end of the sliding shoe 7 accordingly. The pressure sensor is provided between the push plate and the continuous jack 6 to detect the thrust. The pressure sensor and the continuous jack 6 are connected to the controller accordingly. Specifically, the electromagnetic control valve of the continuous jack 6 is connected to the controller. The controller can be a single-chip microcomputer or a plc, so that the thrust threshold can be set. When the thrust exceeds the threshold, the driving of the continuous jack 6 is stopped to ensure the stability of the push.

[0027] In this embodiment, the sliding shoe 7 includes two boots hinged to each other, and the boots are square box structures formed by welding steel plates. The boots include a top plate, a bottom plate, a double steel plate and an end plate. The top plate has a flat upper surface to support the box beam 5. The length of the two boots after being hinged is adapted to the length of the bottom surface of the box beam 5. The bottom plates of the two boots are located on the same inclined plane, thereby forming an inclined surface that extends obliquely and can be adapted to the corresponding slideway 1, so as to meet the lifting of the box beam 5 during the actual sliding process. A through hole (located on the end plate) is provided in the middle of the boot along its length direction for the traction cable 2 to pass through. One end of the traction cable 2 passes through the shoe and is fixed on the reaction seat 3 at the end of the slide 1. The reaction seat 3 is welded or bolted to the slide 1, and the other end is connected to the continuous jack 6, so that along the traction cable 2, the top plates of the two shoes are located on the same horizontal plane, and the bottom plates of the two shoes are located on the extension surface of the same inclined surface, thereby forming an inclined extending inclined surface corresponding to the slide 1.

[0028] Guide plates are provided on both sides of the bottom plate. The guide plates are strip-shaped plates. The length of the guide plates matches the length of the boot. The spacing between the two guide plates matches the width of the slideway 1, thereby ensuring stability during the sliding process.

[0029] The bottom plate and the top plate are spaced apart in the longitudinal direction, and the two double-piece steel plates are located between the top plate and the bottom plate. One end of the bottom plate extends upwardly tilted to form an inclined surface corresponding to the inclined slide 1, so that the box girder 5 can be lifted when sliding on the slide 1. The two double-piece steel plates are fixed between the top plate and the bottom plate, and the lower side of the double-piece steel plates is adapted to the inclination angle of the bottom plate, thereby ensuring the supporting capacity of the sliding shoe 7. End plates are fixed at both ends of the shoe, and hinge plates are provided on the adjacent end plates of the two shoe members by welding, so that the two shoe members can be hinged through a hinge shaft.

[0030] In an optional embodiment, the continuous jack 6 includes two center hole cylinders 601 connected by multiple fixed columns 602. The fixed columns 602 are solid metal, and their two ends are respectively connected to the cylinder bodies of the two center hole cylinders 601. The length of the fixed columns 602 is greater than the maximum extension length of the piston rod 603 of the center hole cylinder 601, thereby ensuring the extension and retraction of the piston rod 603.

[0031] The two center hole oil cylinders 601 extend along the same axial direction, and a clamping mechanism corresponding to the traction cable 2 is provided at the end of the piston rod 603 of each center hole oil cylinder 601 . The clamping mechanism includes a main sleeve 605, a wedge block 607 and an extrusion sleeve 606. The main sleeve 605 is a metal sleeve, and one end of the main sleeve corresponding to the end of the piston rod 603 is provided with an internal thread, and the corresponding end of the piston rod 603 is provided with an external thread, so that the main sleeve 605 is threadedly connected to the end of the piston rod 603 of the center hole cylinder 601, and the end of the inner hole of the main sleeve 605 away from the piston rod 603 of the center hole cylinder 601 is a tapered extrusion port, and the larger end of the tapered extrusion port is away from the sliding shoe 7, and the smaller sections of multiple wedge blocks 607 extend into the tapered extrusion port. The outer periphery of the main sleeve 605 is connected to the extrusion sleeve 606 through multiple extrusion rods 604, and the extrusion sleeve 606 squeezes the wedge block 607 into the tapered extrusion port. Under the restriction of the tapered extrusion port, the wedge block 607 squeezes the traction cable 2 inward, thereby holding the traction cable 2 circumferentially through the wedge block 607 to fix the traction cable 2.

[0032] The extrusion rod 604 can be a small hydraulic cylinder. The number of the extrusion rods 604 is 3-6 and is evenly distributed around the piston rod 603. The electromagnetic control valves of the extrusion rods 604 are correspondingly connected to the control.

[0033] The plurality of wedge blocks 607 are evenly distributed in the circumferential direction of the conical extrusion port, and there is a clearance gap between two adjacent wedge blocks 607, so as to ensure that they can be radially displaced and the traction cable 2 can be squeezed under the restriction of the conical extrusion port. The outer wall of the wedge block 607 is a conical surface corresponding to the conical extrusion port, and the inner wall of the wedge block 607 is an arc surface corresponding to the traction cable 2. The number of wedge blocks 607 can be 4-6.

[0034] An extrusion spring 608 is provided between the wedge block 607 and the end of the piston rod 603 of the center hole cylinder 601. The extrusion spring 608 is compressed on the smaller end of the wedge block 607 and the end of the piston rod 603, so that the wedge block 607 has a tendency to withdraw from the conical extrusion port. After the extrusion rod 604 drives the extrusion sleeve 606 to disengage from the wedge block 607, the wedge block 607 is squeezed out by the extrusion spring 608, thereby releasing the embrace of the traction cable 2.

[0035] The extrusion sleeve 606 is an annular disk. After the extrusion rod 604 is extended (maximum stroke), the distance between the extrusion rod 604 and the main sleeve 605 is smaller than the axial length of the wedge block 607, so that it will not fall out of the conical extrusion port after the traction cable 2 is released.

[0036] In an optional embodiment, there are multiple fixing columns 602 , for example, four fixing columns 602 , and the multiple fixing columns 602 are evenly distributed in the circumferential direction of the continuous jack 6 .

[0037] A position sensor is provided at the position of the slideway 1 corresponding to the lateral end point 4, and the position sensor is used to monitor the position of the box beam 5. The position sensor is correspondingly connected to the control to feedback the sliding position of the box beam 5, thereby stopping the driving jack.

[0038] The center hole hydraulic cylinder 601 is a conventional hydraulic rod and is not subject to too many restrictions.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A railway box girder lateral motion power device, characterized in that: include: A slideway, the slideway extending from a lateral movement starting point to a lateral movement end point, and a sliding shoe is slidably mounted on the slideway; A continuous jack is provided at one end of the sliding shoe corresponding to the starting point of the lateral movement, a traction cable is inserted inside the continuous jack, and the traction cable passes through the sliding shoe and is connected to the reaction seat, and the reaction seat is fixed at one end of the slideway corresponding to the end point of the lateral movement; A pressure sensor, wherein a push plate corresponding to the continuous jack is provided at the end of the sliding shoe, and the pressure sensor is provided between the push plate and the continuous jack; The pressure sensor and the continuous jack are connected to the controller accordingly.

2. The railway box girder lateral motion power device according to claim 1, characterized in that: The continuous jack comprises two center hole cylinders connected by a plurality of fixing columns, the two center hole cylinders extend along the same axial direction, and a clamping mechanism corresponding to the traction cable is provided at the end of the piston rod of each center hole cylinder.

3. The railway box girder lateral motion power device according to claim 2, characterized in that: The clamping mechanism includes a main sleeve, a wedge block and an extrusion sleeve. The main sleeve is threadedly connected to the end of the piston rod of the center hole cylinder. The end of the inner hole of the main sleeve away from the piston rod of the center hole cylinder is a conical extrusion port. A plurality of wedge blocks extend into the conical extrusion port. The outer periphery of the main sleeve is connected to the extrusion sleeve through a plurality of extrusion rods. The extrusion sleeve squeezes the wedge blocks into the conical extrusion port so that the wedge blocks hold the traction cable tightly in the circumferential direction.

4. The railway box girder lateral motion power device according to claim 3, characterized in that: The plurality of wedge-shaped blocks are evenly distributed in the circumferential direction of the conical extrusion port, and there is a clearance gap between two adjacent wedge-shaped blocks; The outer wall of the wedge block is a conical surface corresponding to the conical extrusion port, the inner wall of the wedge block is an arcuate surface corresponding to the traction cable, and an extrusion spring is provided between the wedge block and the end of the piston rod of the center hole cylinder so that the wedge block has a tendency to exit the conical extrusion port.

5. The railway box girder lateral motion power device according to claim 2, characterized in that: There are multiple fixing columns, and the multiple fixing columns are evenly distributed in the circumferential direction of the continuous jacks.

6. The railway box girder lateral motion power device according to claim 2, characterized in that: A position sensor is provided at the position of the slideway corresponding to the end point of the lateral movement, and the position sensor is correspondingly connected to the control.

Images