Shoulder pole type lifting appliance for lifting subway tunnel steel rail

Abstract

The utility model provides a shoulder pole type lifting appliance for lifting a subway tunnel steel rail, which comprises two lifting mechanisms arranged in parallel, each hoisting mechanism comprises a supporting cross beam, a vertical supporting structure arranged on the upper end face of the supporting cross beam and two transverse supporting structures symmetrically arranged on the two sides of the supporting cross beam in the longitudinal direction of the supporting cross beam. According to the shoulder pole type lifting appliance, the number of lifting equipment is reduced, so that the acquisition cost of the equipment is reduced, and the maintenance and operation cost is obviously reduced due to the reduction of the number of the equipment; by using the single hoisting equipment, the operation process can be simplified, so that the operation is simpler, more convenient and more direct, the steel rail hoisting speed is accelerated, the construction progress can be directly improved by simplifying the operation process and accelerating the hoisting speed, meanwhile, the safety risk is reduced, and the construction safety coefficient of front-line workers is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to urban rail transit rail hoisting construction technical field, concretely relates to a flat shoulder type lifting appliance for subway tunnel rail hoisting. BACKGROUND

[0002] With the acceleration of urbanization, the urban population increases rapidly, and the traffic congestion problem is increasingly serious. As a large capacity, fast and punctual public transport mode, the subway plays an increasingly important role in the urban transportation system. Many cities are vigorously developing subway construction projects. In subway construction, tunnel construction is a key link, and rail is an important part of the subway track system. For example, in big cities like Beijing and Shanghai, new subway lines are planned and constructed every year. These subway lines are often tens of kilometers long and require a large number of rails to be laid in the tunnel.

[0003] Due to the complexity of the subway construction environment and the special requirements of the construction process, the rails often need to be transferred from a specific site to the construction site to ensure the smooth progress of the on-site construction. The following methods are generally used for hoisting:

[0004] When starting hoisting, first move two hoisting equipment to the appropriate position of the rail to be hoisted. Each hoisting equipment sets two hook points, and the operator starts the lowering function to lower the hook to the height of the rail that can be hung. The hooks are hung on the predetermined hoisting position of the rail one by one, and a total of four hook points can be hung on two equipment. One hoisting equipment is mainly responsible for lifting one end of the rail, and the other is responsible for lifting the other end of the rail, and then the lifting function of the two equipment is started at the same time. As the lifting height increases, when it is safe and meets the moving height, the two hoisting equipment will transport the rail to the laying location in the tunnel.

[0005] Although this hoisting process can hoist the rail to the on-site construction position, two hoisting equipment need to be purchased and maintained at a single work point, which undoubtedly increases the construction cost. Including the purchase cost of equipment, the daily maintenance cost, the depreciation cost of equipment, etc.; secondly, two operators need to operate two equipment at the same time, and they need to have good coordination. In the process of lifting, transporting and placing the rail, any operation error can cause accidents; and because two equipment need to be operated synchronously, the hoisting process is relatively slow, especially in the case of frequent hoisting of rails, which will seriously affect the progress of the subway tunnel construction. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a flat shoulder type lifting appliance for subway tunnel rail hoisting to solve the above-mentioned deficiencies of the prior art.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a flat shoulder type lifting appliance for subway tunnel steel rail hoisting, including two parallel setting hoisting mechanism,

[0009] Each hoisting mechanism includes support crossbeam, vertical support structure setting in the upper end surface of support crossbeam and two lateral support structures along the longitudinal symmetry of support crossbeam and set in the both sides of support crossbeam,

[0010] Vertical support structure includes two oblique cross beams one end fixedly connected and the other end fixedly connected with the upper end of longitudinal both ends of support crossbeam respectively and vertical reinforcing beam fixedly connected support crossbeam and oblique cross beam,

[0011] Each lateral support structure includes two lateral oblique cross beams one end fixedly connected and the other end fixedly connected with the side of support crossbeam respectively and transverse reinforcing beam fixedly connected support crossbeam and lateral oblique cross beam,

[0012] The support crossbeam of two hoisting mechanisms is fixedly connected through several connecting crossbeams.

[0013] Further, the support crossbeam and the two oblique cross beams are provided with a plurality of through holes arranged at fixed intervals, and the through holes are further provided with buckle wire rope fittings.

[0014] Further, the fixed connection is by welding.

[0015] According to the above technical solution, the utility model has the following technical advantages compared with the prior art:

[0016] The flat shoulder type lifting appliance reduces the number of hoisting equipment, reduces maintenance and operation costs, and at the same time, the use of less hoisting equipment can simplify the operation process, and the operator can focus more on the operation of a single device, reducing the occurrence of potential safety hazards due to poor communication or uncoordinated operation, building a safety line for the operator, enabling them to work in a safer and more stable environment; The simplification of the operation process and the acceleration of the hoisting speed can directly improve the progress of the subway tunnel construction, improve the efficiency of hoisting the steel rail, and thus enable the subsequent track laying work to be carried out smoothly and orderly. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] In the figure: 1, support crossbeam; 2, connecting crossbeam; 3, oblique cross beam; 4, vertical reinforcing beam; 5, lateral oblique cross beam; 6, transverse reinforcing beam; 7, buckle wire rope fitting. DETAILED DESCRIPTION

[0019] A preferred embodiment of the utility model is described in detail below in combination with the drawings.

[0020] As Figure 1 The flat-burden hoist for hoisting subway tunnel steel rails comprises two parallel hoisting mechanisms, each of which comprises a support beam 1, vertical support structures arranged on the upper end surface of the support beam, and two lateral support structures arranged symmetrically along the longitudinal direction of the support beam 1 on both sides of the support beam 1. In specific use, the support beams 1 of the two hoisting mechanisms are fixedly connected through several connecting beams 2, so that only one hoisting device is needed to simultaneously hoist the two hoisting mechanisms, thereby reducing the number of hoisting devices and the maintenance and operation costs. Meanwhile, the use of fewer hoisting devices can also simplify the operation process.

[0021] Specifically, the vertical support structure comprises two diagonal cross beams 3 fixedly connected at one end and fixedly connected at the other end with the upper ends of the longitudinal ends of the support beam 1 respectively, and a vertical reinforcing beam 4 fixedly connecting the support beam 1 and the diagonal cross beam 3, and a plurality of triangular structures are formed between the support beam 1, the diagonal cross beam 3 and the vertical reinforcing beam 4. Each lateral support structure comprises two lateral diagonal cross beams 5 fixedly connected at one end and fixedly connected at the other end with the side surface of the support beam 1 respectively, and a lateral reinforcing beam 6 fixedly connecting the support beam 1 and the lateral diagonal cross beam 5, and a plurality of triangular structures are formed between the support beam 1, the lateral diagonal cross beam 5 and the lateral reinforcing beam 6. The triangular structure of the preferred embodiment makes the overall structure of the hoisting mechanism more stable and effectively disperses the load.

[0022] Further, a plurality of perforations are arranged at fixed intervals on the support beam 1 and the two diagonal cross beams 3, and a buckle wire rope fitting 7 is arranged at the perforation. The buckle wire rope fitting 7 on the support beam 1 is used for firmly bundling with the steel rail, and the buckle wire rope fitting 7 on the diagonal cross beam 3 is used for reliably fixedly hooking with the hoisting device. The perforations of the preferred embodiment are burned by a cutting torch, and the diameter of the perforations is 120 mm. The distance between the perforations on the support beam 1 is 4100 mm, and the distance between the perforations on the diagonal cross beam 3 and the connecting point of the two diagonal cross beams 3 is 2600 mm.

[0023] In a specific operation, the fixed connection is welding, for the vertical support structure, the support beam 1 and vertical reinforcing beam 4 adopt 18# I-beam, the inclined cross beam 3 adopts 16# I-beam, first, a vertical reinforcing beam 4 is welded at the center position of the upper end surface of the support beam 1, then two inclined cross beams 3 are welded and fixed with the support beam and the vertical reinforcing beam at the center position, and then a vertical reinforcing beam is welded every 1200mm along the longitudinal direction of the support beam, starting from the vertical reinforcing beam at the center position, to connect the support beam and the inclined cross beam. The material and size of the transverse support structure can be selected according to the actual hoisting needs, including but not limited to I-beam or angle steel, and the welding and fixing method is similar to that of the vertical support structure.

[0024] Taking the track-laying small crane as an example, the rail hoisting by the lifting device described in the preferred embodiment specifically includes the following steps:

[0025] S1, the welded and assembled rail hoisting yoke is hoisted on the transport equipment by professional hoisting equipment, and the transport equipment is started to transport the lifting device to the site construction position;

[0026] S2, before actual hoisting, the track-laying small crane should be tested for hoisting, after the test is correct, the track-laying small crane is moved to the appropriate position of the lifting device, the lowering function of the track-laying small crane is started, the lifting hook of the track-laying small crane is lowered above the lifting device, and the operator firmly connects the lifting hook with the buckle wire rope rigging, at this time, the lifting function of the track-laying small crane is started to lift the lifting hook to a safe height, and the track-laying small crane is moved to the storage position of the rails;

[0027] S3, when starting to hoist the rails, first, the track-laying small crane is moved to the appropriate position of the rails, the lowering function of the track-laying small crane is started, so that the lifting device with buckle wire rope rigging has the height of bundling the rails, the operator effectively and reliably bundles the lifting device with buckle wire rope rigging at five points at the bottom of the lifting device with the hoisted rails, that is, one lifting device can hoist two rails at a time;

[0028] S4, before hoisting, check whether the bundling of the buckle wire rope rigging at each point of the rails is effective, and obstacles in the moving range of the small crane or safety-related issues need to be timely handled and solved. At this time, the lifting function of the track-laying small crane is started, the lifting device is lifted to a safe height that meets the moving height, and then the moving function is operated to transport the rails to the required construction site;

[0029] S5, after arriving at the site, the lowering function of the track-laying small crane is started, the lifting device is stably lowered to the parking position, the operator unfastens the buckle wire rope rigging, at this time, the lifting function of the track-laying small crane is started, the lifting device is lifted to a safe height, and the whole process of hoisting the rails is completed.

[0030] The preferred embodiment of the flat-type lifting appliance reduces the number of hoisting equipment, reduces the maintenance and operation cost; at the same time, the use of less hoisting equipment can simplify the operation process, the operator can pay more attention to the operation of a single device, reduces the emergence of potential safety hazards due to poor communication or operation incoordination, builds a safety line for the operator, and enables the operator to work in a safer and more stable environment; the simplification of the operation process and the acceleration of the hoisting speed can directly improve the progress of the subway tunnel construction, improve the efficiency of hoisting the rail, so that the subsequent track laying work can be carried out smoothly and orderly.

[0031] The above-described embodiments only describe the preferred embodiments of the utility model, and do not limit the scope of the utility model, and various modifications and improvements to the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A pole type sling for hoisting subway tunnel steel rails, characterized in that, The lifting mechanism comprises two parallel lifting mechanisms; Each lifting mechanism comprises a support beam, vertical support structures arranged on the upper end surface of the support beam, and two lateral support structures symmetrically arranged on both sides of the support beam along the longitudinal direction of the support beam; The vertical support structures comprise two diagonal cross beams with one end fixedly connected to each other and the other end fixedly connected to the upper end of the longitudinal two ends of the support beam respectively, and vertical reinforcing beams fixedly connecting the support beam and the diagonal cross beams; Each lateral support structure comprises two lateral diagonal cross beams with one end fixedly connected to each other and the other end fixedly connected to the side surface of the support beam respectively, and a lateral reinforcing beam fixedly connecting the support beam and the lateral diagonal cross beams; The support beams of the two lifting mechanisms are fixedly connected by a plurality of connecting beams.

2. The carrying pole type sling for hoisting subway tunnel steel rails according to claim 1, characterized in that, A plurality of perforations are arranged on the support beam and the two diagonal cross beams at fixed intervals, and a buckle steel wire rope fitting is arranged at the perforation.

3. The carrying pole type sling for hoisting subway tunnel rails according to claim 1, characterized in that, The fixed connection is achieved by welding.

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