A light and narrow eccentric type advanced hydraulic support handling device and handling method

Abstract

The present invention provides a light and narrow eccentric type advanced hydraulic support handling device and a handling method, belonging to the technical field of eccentric type advanced hydraulic support handling. The light and narrow eccentric type advanced hydraulic support handling device includes a U-shaped vehicle frame, a connection mechanism for connecting with a power locomotive, walking wheels, an eccentric support lifting and limiting assembly, and a hydraulic system; the front end of the U-shaped vehicle frame is a closed end, and the rear end is an open end; the connection mechanism is arranged outside the front end of the U-shaped vehicle frame; the walking wheels are arranged on both sides of the U-shaped vehicle frame; the eccentric support lifting and limiting assembly includes a disc type chain hoist lifting mechanism and an asymmetric flexible roller clamping mechanism arranged on both sides of the U-shaped vehicle frame, and a support limiting frame arranged at the front end of the U-shaped vehicle frame. In view of the eccentric characteristics of the eccentric type advanced hydraulic support, the device is provided with an eccentric support lifting and limiting assembly, which restricts the degrees of freedom of the eccentric type advanced hydraulic support in all directions, ensuring the safe and stable handling of the eccentric type advanced hydraulic support to the designated location.

Description

Technical Field

[0001] The invention belongs to the technical field of handling eccentric type advanced hydraulic supports, and specifically discloses a light and narrow eccentric type advanced hydraulic support handling device and a handling method. Background Art

[0002] With the continuous popularization of intelligent mines in China, the mining and excavation technology of fully mechanized working faces has been further optimized, and the non-repeated support advanced support in the gateway of the working face has also been continuously promoted and applied. For coal mines with strong rock bursts, by using paired unit type advanced hydraulic supports to achieve non-repeated support advanced support in the gateway roadway, the roof can be effectively protected and the support efficiency can be improved. However, the gateway roadway is narrow, and the width for the handling device to travel is about 2.2 m. The unit type advanced hydraulic supports used are generally within 3 - 5 tons, and the width of the support is not more than 1 m. The explosion-proof support transporter for coal mines provided by CN202966317U and the hydraulic support transporter provided by CN104554500A are mainly used to handle 40 / 50 / 60 / 80-ton heavy hydraulic supports in fully mechanized working faces, which belong to large-scale mechanical equipment with relatively large sizes and cannot enter the gateway roadway to handle the unit type advanced hydraulic supports. When handling the unit type advanced hydraulic supports in the narrow roadway, methods such as winch dragging and manual assistance are required, resulting in low work efficiency, large workload, high labor intensity, and poor safety guarantee.

[0003] The difference between the eccentric type advanced hydraulic support and the above-mentioned unit type advanced hydraulic support is that it adopts an eccentric design and can achieve the side shift function, greatly expanding the application of the advanced hydraulic support in the gateway roadway. However, its special eccentric design and the narrow gateway roadway conditions make the methods such as winch dragging and manual assistance have problems such as low work efficiency, large workload, high labor intensity, poor safety guarantee, and in addition, there are also problems that the support is not fixed firmly during transportation and is prone to tipping. Summary of the Invention

[0004] The purpose of the invention is to provide a light and narrow eccentric type advanced hydraulic support handling device and a handling method. In view of the eccentric characteristics of the eccentric type advanced hydraulic support, an eccentric support lifting limit assembly is set to realize the lifting, clamping, and transportation of the eccentric type advanced hydraulic support, limit the degrees of freedom of the eccentric type advanced hydraulic support in all directions, ensure the safe and stable handling of the eccentric type advanced hydraulic support to the designated location, and meet the handling requirements of non-repeated eccentric type advanced hydraulic supports in the gateway roadway of coal mines.

[0005] To achieve the above object, the present invention provides a light and narrow eccentric type advanced hydraulic support handling device, which includes a U-shaped vehicle frame, a connection mechanism for connecting with a power locomotive head, walking wheels, an eccentric support lifting and limiting assembly, and a hydraulic system; the front end of the U-shaped vehicle frame is a closed end, and the rear end is an open end; the connection mechanism is arranged outside the front end of the U-shaped vehicle frame; the walking wheels are arranged on both sides of the U-shaped vehicle frame; the eccentric support lifting and limiting assembly includes a disc-type chain hoisting mechanism and an asymmetric flexible roller clamping mechanism arranged on both sides of the U-shaped vehicle frame, and a support limiting frame arranged at the front end of the U-shaped vehicle frame; the disc-type chain hoisting mechanism includes a lifting oil cylinder, a sprocket arranged on the U-shaped vehicle frame, and a chain wound around the sprocket; both ends of the lifting oil cylinder are respectively hinged to the axle of the sprocket and the U-shaped vehicle frame; the asymmetric flexible roller clamping mechanism includes a clamping oil cylinder, a roller plate asymmetrically hinged inside the U-shaped vehicle frame, and flexible rollers arranged on the roller plate; both ends of the clamping oil cylinder are respectively hinged to the outside of the roller plate and the U-shaped vehicle frame; the support limiting frame extends backward and is firmly connected to the eccentric type advanced hydraulic support through a fastening sling; the lifting oil cylinder and the clamping oil cylinder are controlled by the hydraulic system.

[0006] Further, the asymmetric flexible roller clamping mechanism further includes a support rod arranged inside the roller plate; the support rod passes through the eccentric type advanced hydraulic support.

[0007] Further, the roller plate is a T-shaped plate, the bottom end is hinged to the U-shaped vehicle frame, and the top end is provided with flexible rollers.

[0008] Further, the sprocket is inclined towards the outside of the U-shaped vehicle frame, and the sprocket adopts a semi-circular wheel double-row tooth structure; the chain is arranged between the double-row teeth.

[0009] Further, two groups of disc-type chain hoisting mechanisms are arranged on one side of the U-shaped vehicle frame, the two groups of disc-type chain hoisting mechanisms are located on both sides of the roller plate, and the four lifting oil cylinders work independently.

[0010] Further, the connection mechanism includes a vehicle frame connection shaft, a central winch, a power locomotive head connection frame, a steering oil cylinder, and a steering oil cylinder ear plate; the central winch includes a rear end plate and winch ear plates arranged on the upper and lower sides of the rear end plate; the vehicle frame connection shaft is transversely arranged and rotates through the front end of the U-shaped vehicle frame and the rear end plate of the central winch; the power locomotive head connection frame includes a front end plate and connection frame ear plates arranged on the upper and lower sides of the front end plate, and the connection frame ear plates and the winch ear plates are hinged through a vertical hinge shaft; the steering oil cylinder is controlled by the hydraulic system, is located on both sides of the central winch, and both ends are respectively hinged to the steering oil cylinder ear plate and the rear end plate of the central winch.

[0011] Further, the U-shaped frame includes a chassis body and a bearing frame body disposed above the chassis body; the chassis body is a frame made of a plate, and a connecting shaft frame rotatably fitted with the vehicle frame connecting shaft is provided at the front end; hollow portions are provided at the front end and both sides of the bearing frame body, a bracket limiting frame is provided at the front end, and disc chain hoisting mechanisms and asymmetric flexible roller clamping mechanisms are provided on both sides.

[0012] Further, the traveling wheels are provided with wheel rims having a braking function; an arc-shaped groove is provided on the bearing frame body; the wheel rims are disposed in the arc-shaped groove and hinged to the rear end of the chassis body; the adjusting oil cylinder is controlled by a hydraulic system and is hinged to the bearing frame body and the wheel rim at both ends respectively.

[0013] Further, the hydraulic system includes a power access quick plug and a centralized control valve group; the power access quick plug is disposed on the central winch; the centralized control valve group is disposed in the hollow portions on both sides of the bearing frame body; the hydraulic oil provided by the power head is accessed to the centralized control valve group through the power access quick plug.

[0014] The present invention also provides an eccentric type advanced hydraulic support handling method, which is implemented based on the above-mentioned light and narrow eccentric type advanced hydraulic support handling device, and includes the following steps:

[0015] S1, the eccentric type advanced hydraulic support on one side is self-moved to the middle of the gateway roadway, the light and narrow eccentric type advanced hydraulic support handling device reverses to the gateway roadway under the traction of the power head, the U-shaped frame straddles both sides of the eccentric type advanced hydraulic support, and the hoisting chain is fixed on the eccentric type advanced hydraulic support.

[0016] S2, the hydraulic system supplies oil to the lifting oil cylinder and the clamping oil cylinder, the lifting oil cylinder extends, the sprocket rotates, the ground clearance of the eccentric type advanced hydraulic support is controlled, and at the same time the clamping oil cylinder extends, the roller plate rotates, and the flexible roller clamps the eccentric type advanced hydraulic support to assist the eccentric type advanced hydraulic support to complete the passive balance during lifting.

[0017] S3, the hydraulic system stops supplying oil to the lifting oil cylinder, and the eccentric type advanced hydraulic support compresses the lifting oil cylinder by its own gravity, so that the hydraulic oil in the lifting oil cylinder flows back to the hydraulic system and contracts, realizing the active balance of the eccentric type advanced hydraulic support.

[0018] S4, the hydraulic system finely adjusts the handling posture of the eccentric type advanced hydraulic support through the lifting oil cylinder and the clamping oil cylinder, and then locks the lifting oil cylinder and the clamping oil cylinder.

[0019] S5, use a fastening sling to bind the eccentric type advanced hydraulic support to the bracket limiting frame to limit the front and rear swing of the eccentric type advanced hydraulic support.

[0020] S6. After the eccentric type advanced hydraulic support is completely fixed, the power head tractor pulls the advanced hydraulic support handling device to the front end of the crossheading roadway. The hydraulic system supplies oil to the lifting cylinder and the clamping cylinder. The lifting cylinder and the clamping cylinder contract, placing the eccentric type advanced hydraulic support in the middle of the crossheading roadway, and the eccentric type advanced hydraulic support self-moves to the two-side support positions.

[0021] The present invention has the following beneficial effects:

[0022] 1. In view of the eccentric characteristics of the eccentric type advanced hydraulic support, an eccentric support lifting limit component is provided to realize the lifting, clamping, and transportation of the eccentric type advanced hydraulic support, restricting the degrees of freedom in all directions of the eccentric type advanced hydraulic support, ensuring the safe and stable handling of the eccentric type advanced hydraulic support to the designated location, and meeting the handling requirements of the crossheading roadway in the coal mine without repeated eccentric type advanced hydraulic supports;

[0023] 2. In view of the complex transportation equipment underground, a general connection mechanism is designed, which can connect a variety of articulated power heads;

[0024] 3. In view of the characteristics of the rough equipment underground, a refined design is carried out in terms of structure. While ensuring the strength of the vehicle body, a frame-type underframe body made of plates and a hollow-type bearing frame body are adopted to design the U-shaped vehicle frame to be lighter and thinner;

[0025] 4. An adjustment cylinder is set to control the ground clearance height of the U-shaped vehicle frame, thereby balancing the connection height difference between the connection mechanism and the power head;

[0026] 5. The design of this handling device realizes the multi-purpose of one machine to a certain extent, reduces the equipment purchase cost of coal mining enterprises, improves production efficiency, reduces the underground operating personnel, and provides an effective way for building a safe and efficient mine;

[0027] 6. The present invention realizes the automatic handling of the eccentric type advanced hydraulic support without repeated support in the crossheading roadway of the coal mine underground, can effectively improve the advanced support speed, avoid repeated support and fragmentation of the roof, enhance the safety of underground operations in the coal mine, save the support operation time, reduce the labor intensity of personnel, improve the safety production rate, save the equipment purchase cost of coal mining enterprises, and realize the reduction of personnel and increase of efficiency in the fully mechanized mining face. Description of the Drawings

[0028] Figure 1 It is a structural schematic diagram of the light and narrow type eccentric type advanced hydraulic support handling device described in Embodiment 1;

[0029] Figure 2 It is a structural schematic diagram of the connection mechanism;

[0030] Figure 3 It is a structural schematic diagram of the underframe body and various parts thereon;

[0031] Figure 4 It is a structural schematic diagram of the carrier frame and each part thereon.

[0032] Among them, the names corresponding to the reference numerals are:

[0033] 1 - U-shaped vehicle frame; 1.1 - chassis body; 1.2 - carrier frame; 1.3 - connecting shaft frame; 2 - connecting mechanism; 2.1 - vehicle frame connecting shaft; 2.2 - central winch; 2.3 - power vehicle head connecting frame; 2.4 - steering oil cylinder; 2.5 - steering oil cylinder ear plate; 2.6 - vertical hinge shaft; 3 - traveling wheel; 4 - eccentric support lifting limit assembly; 4.1 - support limit frame; 4.2 - lifting oil cylinder; 4.3 - sprocket; 4.4 - hoisting chain; 4.5 - clamping oil cylinder; 4.6 - idler plate; 4.7 - flexible idler; 4.8 - fastening sling; 4.9 - support rod; 4.10 - wheel axle ear plate; 5.1 - wheel side; 5.2 - wheel side connecting shaft; 5.3 - adjusting oil cylinder; 5.4 - adjusting ear plate; 6.1 - power access quick plug-in; 6.2 - centralized control valve group. Specific embodiments

[0034] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] This embodiment provides a light and narrow eccentric type advanced hydraulic support handling device, which includes a U-shaped vehicle frame 1, a connection mechanism 2 for connecting with a power locomotive head, walking wheels 3, an eccentric support lifting and limiting assembly 4, and a hydraulic system; the front end of the U-shaped vehicle frame is a closed end, and the rear end is an open end; the connection mechanism 2 is arranged outside the front end of the U-shaped vehicle frame; the walking wheels 3 are arranged on both sides of the U-shaped vehicle frame; the eccentric support lifting and limiting assembly 4 includes a disc-type chain hoisting mechanism and an asymmetric flexible roller clamping mechanism arranged on both sides of the U-shaped vehicle frame 1, and a support limiting frame 4.1 arranged at the front end of the U-shaped vehicle frame 1; the disc-type chain hoisting mechanism includes a lifting oil cylinder 4.2, a sprocket 4.3 rotatably arranged on the U-shaped vehicle frame 1, and a chain 4.4 wound around the sprocket 4.3; both ends of the lifting oil cylinder 4.2 are respectively hinged with the axle of the sprocket 4.3 and the U-shaped vehicle frame 1; the asymmetric flexible roller clamping mechanism includes a clamping oil cylinder 4.5, a roller plate 4.6 asymmetrically hinged inside the U-shaped vehicle frame 1, and a flexible roller 4.7 arranged on the roller plate 4.6; both ends of the clamping oil cylinder 4.5 are respectively hinged with the outer side of the roller plate 4.6 and the U-shaped vehicle frame 1; the support limiting frame 4.1 extends backward and is firmly connected with the eccentric type advanced hydraulic support through a fastening sling 4.8; the lifting oil cylinder 4.2 and the clamping oil cylinder 4.5 are controlled by the hydraulic system.

[0037] Further, the asymmetric flexible roller clamping mechanism further includes a support rod 4.9 arranged inside the roller plate 4.6; the support rod 4.9 passes through the eccentric type advanced hydraulic support and can fix it more effectively.

[0038] Further, the roller plate 4.6 is a T-shaped plate, the bottom end is hinged with the U-shaped vehicle frame 1, and the top end is provided with a flexible roller 4.7. Using a T-shaped plate can not only reduce the occupied space inside the U-shaped vehicle frame 1, but also save costs while realizing the function.

[0039] Further, the sprocket 4.3 inclines towards the outside of the U-shaped vehicle frame 1 to improve the stress condition of the sprocket 4.3, adapt to different support widths, reduce chain wear, make the lifting smoother, and at the same time can increase the lifting height, reduce the installation size of the sprocket 4.3, and can make the U-shaped vehicle frame 1 thinner. The sprocket 4.3 adopts a semi-circular wheel double-row tooth structure. Using a semi-circular wheel can not only increase the internal use size of the U-shaped vehicle frame 1, but also save costs while realizing the function, and the double-row teeth have higher strength; the chain 4.4 is arranged between the double-row teeth.

[0040] Further, two groups of disc-type chain hoisting mechanisms are arranged on one side of the U-shaped vehicle frame 1, and the two groups of disc-type chain hoisting mechanisms are located on both sides of the roller plate 4.6. The four lifting oil cylinders 4.2 work independently without interference to realize asynchronous hoisting. A wheel axle ear plate 4.10 is fixed on the axle of the sprocket 4.3, and the lifting oil cylinder 4.2 is hinged with the wheel axle ear plate 4.10.

[0041] Furthermore, the connecting mechanism 2 includes a frame connecting shaft 2.1, a center capstan 2.2, a power locomotive connecting frame 2.3, a steering cylinder 2.4 and a steering cylinder ear plate 2.5; the center capstan 2.2 includes a rear end plate and capstan ear plates arranged on the upper and lower sides of the rear end plate; the frame connecting shaft 2.1 is arranged horizontally and rotates through the front end of the U-shaped frame 1 and the rear end plate of the center capstan 2.2; the power locomotive connecting frame 2.3 includes a front end plate and a connecting frame ear plates arranged on the upper and lower sides of the front end plate, the front end plate and the connecting frame ear plates can be disassembled or welded, and can be selected according to the actual situation of the coal mining enterprise, and the connecting frame ear plates and the capstan ear plates are hinged through a vertical hinge shaft 2.6; the steering cylinder 2.4 is controlled by a hydraulic system and is located on both sides of the center capstan 2.2, and the two ends are respectively hinged to the steering cylinder ear plate 2.5 and the rear end plate of the center capstan 2.2. The center capstan 2.2, the power locomotive connection frame 2.3, and the steering cylinder 2.4 are all flexible and detachable. If the articulation space of the power locomotive is sufficient, the front end plate of the power locomotive connection frame 2.3 and the steering cylinder ear plate 2.5 can be directly welded or bolted to the power locomotive; if the articulation space of the power locomotive is average, the steering cylinder 2.4 and the steering cylinder ear plate 2.5 can be removed and connected directly through the power locomotive connection frame 2.3; if the articulation space is narrow, the power locomotive connection frame 2.3, the steering cylinder 2.4 and the steering cylinder ear plate 2.5 can be removed, and the center capstan 2.2 can be directly articulated with the power locomotive. The connection mechanism 2 can select a suitable drive body connection according to the existing vehicle model of the coal mining enterprise. It is flexible and adjustable, which reduces the restriction of the connection mechanism 2 on the power locomotive, increases the diversity of the power locomotive, and saves equipment purchase costs for coal mining enterprises.

[0042] Furthermore, the U-shaped frame 1 includes a bottom frame body 1.1 and a supporting frame body 1.2 arranged above the bottom frame body 1.1; the bottom frame body 1.1 is a frame body made of plate material, which can reduce its own weight to the greatest extent while meeting the structural requirements, and a connecting shaft frame 1.3 is arranged at the front end to rotate with the frame connecting shaft 2.1; the front end and both sides of the supporting frame body 1.2 are provided with hollow parts, a support limit frame 4.1 is arranged at the front end, and a wheel-type chain hoisting mechanism and an asymmetric flexible roller clamping mechanism are arranged on both sides. Due to the narrowness of the chute lane, in order to ensure that the internal space size of the handling device retains a margin, the outer width of the U-shaped frame 1 does not exceed 1.6 meters, and the light, thin and ultra-narrow design can ensure that the light and narrow eccentric advance hydraulic support handling device can smoothly enter the chute lane for handling work.

[0043] Furthermore, the bracket limit frame 4.1 is a special-shaped limit frame, including a front plate connected to the supporting frame body 1.2, a top plate arranged on the top of the front plate, and a side plate connecting the front plate and the top plate. The front plate, the top plate and the side plates all adopt a hollow structure, which can effectively reduce the weight.

[0044] Furthermore, the walking wheel 3 is provided with a wheel edge 5.1 having a braking function; an arc-shaped groove is provided on the bearing frame body 1.2; the wheel edge 5.1 is arranged in the arc-shaped groove and is hinged to the rear end of the bottom frame body 1.1 through a wheel edge connecting shaft 5.2; the adjusting oil cylinder 5.3 is controlled by a hydraulic system, and both ends are respectively hinged to the bearing frame body 1.2 and an adjusting ear plate 5.4 on the wheel edge 5.1. The wheel edge 5.1, the wheel edge connecting shaft 5.2, the adjusting oil cylinder 5.3 and the adjusting ear plate 5.4 constitute a vehicle frame height adjusting mechanism, which controls the height of the U-shaped vehicle frame 1 from the ground, thereby balancing the connection height difference between the connection mechanism 2 and the power head, and improving the adaptability of the light and narrow eccentric type advanced hydraulic support handling device.

[0045] Furthermore, the hydraulic system includes a power access quick connector 6.1 and a centralized control valve group 6.2; the power access quick connector 6.1 is arranged on the central winch 2.2; the centralized control valve group 6.2 is arranged in the hollow parts on both sides of the bearing frame body 1.2; the power head provides hydraulic oil for the above-mentioned light and narrow eccentric type advanced hydraulic support handling device, and the hydraulic oil is accessed into the centralized control valve group 6.2 through the power access quick connector 6.1. Each oil cylinder can be controlled by operating the centralized control valve group 6.2.

[0046] Embodiment 2

[0047] This embodiment provides an eccentric type advanced hydraulic support handling method, which is implemented based on the above-mentioned light and narrow eccentric type advanced hydraulic support handling device, and includes the following steps:

[0048] S1, the eccentric type advanced hydraulic support on one side is self-moved to the middle of the crossheading roadway, the light and narrow eccentric type advanced hydraulic support handling device is reversed to the crossheading roadway under the traction of the power head, the U-shaped vehicle frame 1 straddles both sides of the eccentric type advanced hydraulic support, and the lifting chain 4.4 is fixed on the eccentric type advanced hydraulic support;

[0049] S2, the hydraulic system supplies oil to the lifting oil cylinder 4.2 and the clamping oil cylinder 4.5, the lifting oil cylinder 4.2 extends, the sprocket 4.3 rotates, controlling the height of the eccentric type advanced hydraulic support from the ground, and at the same time the clamping oil cylinder 4.5 extends, the roller plate 4.6 rotates, and the flexible roller 4.7 clamps the eccentric type advanced hydraulic support to assist the eccentric type advanced hydraulic support to complete the passive balance during lifting;

[0050] S3, the hydraulic system stops supplying oil to the lifting oil cylinder 4.2, and the eccentric type advanced hydraulic support compresses the lifting oil cylinder 4.2 by its own gravity, so that the hydraulic oil in the lifting oil cylinder 4.2 flows back to the hydraulic system and contracts, realizing the active balance of the eccentric type advanced hydraulic support;

[0051] S4, the hydraulic system finely adjusts the handling posture of the eccentric type advanced hydraulic support through the lifting oil cylinder 4.2 and the clamping oil cylinder 4.5, and then locks the lifting oil cylinder 4.2 and the clamping oil cylinder 4.5;

[0052] S5, using the fastening sling 4.8 to bind the eccentric advance hydraulic support to the support limit frame 4.1, so as to limit the forward and backward swinging of the eccentric advance hydraulic support;

[0053] S6, after the eccentric advance hydraulic support is completely fixed, the power locomotive pulls the advance hydraulic support transport device to the front end of the drift tunnel, and the hydraulic system supplies oil to the lifting cylinder 4.2 and the clamping cylinder 4.5, and the lifting cylinder 4.2 and the clamping cylinder 4.5 are retracted, and the eccentric advance hydraulic support is placed in the middle of the drift tunnel, and the eccentric advance hydraulic support moves to the support position on both sides;

[0054] S7, the power locomotive then pulls the advance hydraulic support transport device to the chute tunnel to the tail end of the chute tunnel, transports the eccentric advance hydraulic support on the opposite side, and completes an eccentric advance hydraulic support transport cycle.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A light and narrow eccentric type advanced hydraulic support handling device, characterized in that It includes a U-shaped frame, a connecting mechanism for connecting with a power locomotive, walking wheels, an eccentric bracket lifting limit component and a hydraulic system; The front end of the U-shaped frame is a closed end, and the rear end is an open end; The connecting mechanism is arranged outside the front end of the U-shaped frame; The walking wheels are arranged on both sides of the U-shaped frame; The eccentric bracket lifting limit component includes a disc-type chain hoisting mechanism and an asymmetric flexible roller clamping mechanism arranged on both sides of the U-shaped frame, and a bracket limit frame arranged at the front end of the U-shaped frame; The disc-type chain hoisting mechanism includes a lifting oil cylinder, a sprocket rotatably arranged on the U-shaped frame and a chain wound around the sprocket; Both ends of the lifting oil cylinder are respectively hinged with the axle of the sprocket and the U-shaped frame; The asymmetric flexible roller clamping mechanism includes a clamping oil cylinder, a roller plate asymmetrically hinged inside the U-shaped frame and flexible rollers arranged on the roller plate; Both ends of the clamping oil cylinder are respectively hinged with the outer side of the roller plate and the U-shaped frame; The bracket limit frame extends backward and is firmly connected with the eccentric type advanced hydraulic support through a fastening sling; The lifting oil cylinder and the clamping oil cylinder are controlled by the hydraulic system.

2. The light and narrow eccentric type advanced hydraulic support handling device according to claim 1, characterized in that, The asymmetric flexible roller clamping mechanism further includes a support rod arranged inside the roller plate; The support rod passes through the eccentric type advanced hydraulic support.

3. The light and narrow eccentric type advanced hydraulic support handling device according to claim 2, wherein The roller plate is a T-shaped plate, the bottom end is hinged with the U-shaped frame, and the top end is provided with flexible rollers.

4. The light and narrow eccentric type advanced hydraulic support handling device according to claim 3, characterized in that, The sprocket is inclined towards the outside of the U-shaped frame, and the sprocket adopts a semi-circular wheel double-row tooth structure; The chain is arranged between the double-row teeth.

5. The light and narrow eccentric type advanced hydraulic support handling device according to claim 4, characterized in that, Two groups of disc-type chain hoisting mechanisms are arranged on one side of the U-shaped frame. The two groups of disc-type chain hoisting mechanisms are located on both sides of the roller plate, and the four lifting oil cylinders work independently.

6. The light and narrow eccentric type advanced hydraulic support handling device according to claim 5, characterized in that, The connecting mechanism includes a frame connecting shaft, a central winch, a power locomotive connecting frame, a steering oil cylinder and a steering oil cylinder ear plate; The central winch includes a rear end plate and winch ear plates arranged on the upper and lower sides of the rear end plate; The frame connecting shaft is arranged horizontally and rotatably passes through the front end of the U-shaped frame and the rear end plate of the central winch; The power locomotive connecting frame includes a front end plate and connecting frame ear plates arranged on the upper and lower sides of the front end plate. The connecting frame ear plates and the winch ear plates are hinged through a vertical hinge shaft; The steering oil cylinder is controlled by the hydraulic system, is located on both sides of the central winch, and both ends are respectively hinged with the steering oil cylinder ear plate and the rear end plate of the central winch.

7. The light and narrow eccentric type advanced hydraulic support handling device according to claim 6, characterized in that, The U-shaped frame includes a bottom frame body and a bearing frame body arranged above the bottom frame body; The bottom frame body is a frame made of plates, and a connecting shaft frame for rotatably matching with the frame connecting shaft is arranged at the front end; Hollow parts are arranged at the front end and both sides of the bearing frame body. A bracket limit frame is arranged at the front end, and a disc-type chain hoisting mechanism and an asymmetric flexible roller clamping mechanism are arranged on both sides.

8. The light and narrow eccentric type advanced hydraulic support handling device according to claim 7, characterized in that, The walking wheels are provided with wheel rims with braking functions; An arc-shaped groove is arranged on the bearing frame body; The wheel rim is arranged in the arc-shaped groove and is hinged with the rear end of the bottom frame body; The adjusting oil cylinder is controlled by the hydraulic system, and both ends are respectively hinged with the bearing frame body and the wheel rim.

9. The light and narrow eccentric type advanced hydraulic support handling device according to claim 8, characterized in that, The hydraulic system includes a power access quick plug and a centralized control valve group; The power access quick plug is arranged on the central winch; The centralized control valve group is arranged in the hollow parts on both sides of the bearing frame body; The hydraulic oil provided by the power locomotive is connected to the centralized control valve group through the power access quick plug.

10. A method for transporting an eccentric type advanced hydraulic support, characterized in that, Implement the light and narrow eccentric type advanced hydraulic support handling device according to any one of claims 1-9, including the following steps: S1. The eccentric type advanced hydraulic support on one side is self-propelled to the middle of the gateway roadway. The light and narrow eccentric type advanced hydraulic support handling device reverses to the gateway roadway under the traction of the power head. The U-shaped frame straddles both sides of the eccentric type advanced hydraulic support, and the lifting chain is fixed on the eccentric type advanced hydraulic support; S2. The hydraulic system supplies oil to the lifting cylinder and the clamping cylinder. The lifting cylinder extends, and the sprocket rotates to control the ground clearance height of the eccentric type advanced hydraulic support. At the same time, the clamping cylinder extends, and the roller plate rotates, and the flexible rollers clamp the eccentric type advanced hydraulic support to assist the eccentric type advanced hydraulic support to complete the passive balance during lifting; S3. The hydraulic system stops supplying oil to the lifting cylinder. The eccentric type advanced hydraulic support compresses the lifting cylinder by its own gravity, so that the hydraulic oil in the lifting cylinder flows back to the hydraulic system and contracts, realizing the active balance of the eccentric type advanced hydraulic support; S4. The hydraulic system finely adjusts the handling attitude of the eccentric type advanced hydraulic support through the lifting cylinder and the clamping cylinder, and then locks the lifting cylinder and the clamping cylinder; S5. Use the fastening sling to bind the eccentric type advanced hydraulic support to the support limit frame to limit the front-back swing of the eccentric type advanced hydraulic support; S6. After the eccentric type advanced hydraulic support is completely fixed, the power head pulls the advanced hydraulic support handling device to the front end of the gateway roadway. The hydraulic system supplies oil to the lifting cylinder and the clamping cylinder. The lifting cylinder and the clamping cylinder contract, and the eccentric type advanced hydraulic support is placed in the middle of the gateway roadway. The eccentric type advanced hydraulic support self-propels to the two-side support positions.

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