Quick dismounting device for hydraulic support

Abstract

The utility model discloses a hydraulic support quick disassembling device which comprises a base, a shield support installation groove is formed in the middle of the base, a sliding groove base is arranged on one side of the end of the base, a guide pulley is installed on the sliding groove base, and an anchor chain is wound on the outer side of the guide pulley. One end of the anchor chain is connected to the hydraulic assembly, the other end of the anchor chain is connected with the hydraulic support, and the hydraulic assembly is installed on the sliding groove base and can drive the anchor chain to pull the hydraulic support to move. The anchor chain is fixed to the shield support, the support is dismantled in a pushing and self-moving mode, it is really avoided that the support is dismantled through a winch, cordless support dismantling is achieved, the construction safety is greatly improved, the one-time pulling stroke of a normal support is increased, the times of self-moving chain pinching are reduced, and the support dismantling efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining and fully-mechanized mining equipment demolition, in particular to a hydraulic support rapid demolition device. Background Art

[0002] In recent years, with the development of fully-mechanized coal mining equipment towards large-scale and heavy-duty, the weight of hydraulic supports has increased from a dozen tons to dozens of tons, which brings difficulties to the installation and demolition of hydraulic supports. Especially, the demolition of hydraulic supports is restricted by conditions such as roof pressure and on-site working conditions, and it is particularly difficult. At the same time, as the length of fully-mechanized mining faces exceeds 3000m, the service time of fully-mechanized mining equipment is relatively long, which also leads to more damage to the hydraulic systems of hydraulic supports. When withdrawing the supports, problems such as the inability to retract the columns, the inoperability of the pushing, and the blockage of hydraulic valve groups often occur.

[0003] The traditional process is to use a winch to drag the support for demolition. After improvement, the hydraulic supports in fully-mechanized mining faces all adopt the pushing device of the support to be demolished, which is fixed on the shielding support through anchor chains and the support is demolished by the way of self-pushing. However, when the hydraulic system of the support is damaged, the backward winch traction demolition process is often still used for support demolition, which poses a great safety threat. There are the following deficiencies in such a design:

[0004] 1. Limited by the short pushing stroke of the support to be demolished, after the support moves one pushing stroke, the chain needs to be tightened again, and then self-pushing is carried out. Repeatedly tightening the chain results in low efficiency.

[0005] 2. When using a winch to demolish the support, the winch load is large and the safety threat is great. In recent years, accidents of wire rope or connecting piece breakage and injury have occurred frequently. After the previous support is traction-demolished, the wire rope needs to be manually transported from the winch to the position of the next support, which is labor-intensive and has low efficiency. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is: how to provide a high-efficiency special rapid pulling device for hydraulic supports.

[0007] To solve the above technical problem, the utility model provides the following technical solutions:

[0008] A hydraulic support rapid demolition device includes a base. A shielding support installation groove is provided at the middle position of the base. A chute base is provided on one side of the end of the base. A guiding pulley is installed on the chute base, and an anchor chain is wound around the outside of the guiding pulley.

[0009] One end of the anchor chain is connected to a hydraulic component, and the other end is connected to a hydraulic support. The hydraulic component is installed on the chute base, and the hydraulic component can drive the anchor chain to pull the hydraulic support to move.

[0010] This application is fixed on the shielding frame by an anchor chain and uses the method of pushing and self-shifting to remove the support. It truly eliminates the use of a winch to remove the support, realizes the "cordless" removal of the support, greatly improves the construction safety, increases the one-time pulling stroke of the normal support, reduces the number of times of self-shifting chain pinching, and greatly improves the support removal efficiency.

[0011] As a further solution of the present utility model: The hydraulic component includes a guide rod and a hydraulic cylinder installed on the guide rod. The guide rod is located on one side of the chute base, and the output end of the hydraulic cylinder is connected to the guide block.

[0012] As a further solution of the present utility model: Standing plates are installed on both sides of the base to form a limiting groove in the middle of the base.

[0013] As a further solution of the present utility model: A number of threaded mounting holes are provided at the four corner positions of the base.

[0014] As a further solution of the present utility model: A number of positioning holes are provided on the chute base, and the positioning holes are detachably connected to the threaded mounting holes on the base.

[0015] As a further solution of the present utility model: A protruding portion is provided at one end of the chute base, and an eye hole is provided in the protruding portion. The eye hole is located at the top position of the shielding frame installation groove.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. It is fixed on the shielding frame by an anchor chain and uses the method of pushing and self-shifting to remove the support. It truly eliminates the use of a winch to remove the support and realizes the "cordless" removal of the support;

[0018] 2. This application provides a removal method for the support with a damaged hydraulic system. The hydraulic cylinder can cooperate with remote control for long-distance operation, greatly improving the construction safety;

[0019] 3. This application increases the one-time pulling stroke of the normal support, reduces the number of times of self-shifting chain pinching, and greatly improves the support removal efficiency;

[0020] 4. When the support is quickly removed from the nest, the old goaf roof can be maintained in time, shortening the empty roof time and greatly reducing the roof risk;

[0021] 5. When the device removes a normal support, the efficiency is doubled; when removing a support with a damaged hydraulic system, about 3 workers per support are reduced, reducing the labor cost and economic cost;

[0022] 6. The shielding support is placed on the base of the device, increasing the contact area between the shielding support base and the floor, making it more stable and not skewed. Description of the Drawings

[0023] Figure 1 This is a schematic structural diagram of the rapid support removal device of the hydraulic support according to the embodiment of the present utility model;

[0024] Figure 2 For the embodiment of the present utility model Figure 1 Side view;

[0025] Figure 3 This is a schematic structural diagram of the guide rod and the chute base according to the embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram when the rapid support removal device of the hydraulic support according to the embodiment of the present utility model is applied;

[0027] Figure 5 Side view of the guide pulley according to the embodiment of the present utility model;

[0028] Explanation of reference numerals:

[0029] 1. Guide rod; 2. Chute base; 3. Guide pulley; 4. Anchor chain; 5. Base; 6. Hydraulic cylinder; 7. Eye hole; 8. Shearer support installation groove; 9. Standing plate; 10. Guide block. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] Referring to Figure 1 、 Figure 2 And Figure 3 , a rapid support removal device for a hydraulic support includes a guide rod 1, a chute base 2, a guide pulley 3, an anchor chain 4, a base 5, a hydraulic cylinder 6, an eye hole 7, a shearer support installation groove 8, a standing plate 9 and a guide block 10; a shearer support installation groove 8 for installing a shearer support pushing device is provided at the middle position of the base 5, and a chute base 2 is provided on one side of the end of the base 5, wherein a guide pulley 3 is installed on the chute base 2, and an anchor chain 4 is wound around the outside of the guide pulley 3.

[0032] It should be noted that the shield support is also a hydraulic support and temporarily serves as a shield support. The above-mentioned shield support pushing device is located at the middle position of the bottom of the shield support. The base 5 is located at the bottom of the shield support and is connected to the pushing device of the shield support. The whole shield support is located on the ground, and the shield support pushing device is arranged in the groove at the middle position. At this time, the base 5 of the present application is located in the groove at the middle of the shield support. When the pushing device works, it can drive the base 5 to move together with the guide rod 1 and the chute base 2. Since the hydraulic support is an existing device and the present application does not improve it, the working principle and structure thereof will not be described in detail.

[0033] Further, one end of the anchor chain 4 is connected to the guide block 10, and the other end is connected to the hydraulic support. One end of the guide block 10 is connected to the end of the hydraulic cylinder 6, and the hydraulic cylinder 6 is installed on the chute base 2. The hydraulic cylinder 6 can drive the anchor chain 4 to rotate along the guide pulley 3, thereby pulling the hydraulic support to move.

[0034] Refer to Figure 1 、 Figure 2 and Figure 3 After the guide rod 1, the chute base 2 and the base 5 are processed, the chute base 2 is installed on one side of the base 5, and the guide rod 1 is installed on one side of the chute base 2. Burrs are removed during the processing of the three, and the guide rod 1 and the chute base 2 are assembled. Threaded mounting holes are provided on the guide rod 1, the chute base 2 and the base 5. For all hole structures, gas cutting processing shall not be used, and finish machining must be carried out to ensure the accuracy requirements; the threaded mounting holes on the guide rod 1, the chute base 2 and the base 5 meet the coaxiality requirements so as to assemble their shafts. The three can be connected by screws through threads or can be processed by welding.

[0035] Further, a guide pulley 3 is installed on the chute base 2. An eye hole is provided on the guide pulley 3 and is connected to the threaded mounting hole on the chute base 2. The threaded mounting hole and the eye hole must also meet the coaxiality requirements so as to assemble the shaft.

[0036] Refer to Figure 1 One end of the chute base 2 is provided with a protruding portion, and an eye hole 7 is provided in the protruding portion. The eye hole 7 is located at the top position of the shield support installation groove 8, and the eye hole 7 is connected to the shield support pushing device.

[0037] Refer to Figure 1 On both sides of the base 5, standing plates 9 are installed, and a base limiting groove is formed in the middle of the base 5.

[0038] The specific operation principle of the present application is as follows:

[0039] According to the following Figure 4In the manner shown, this application is fixed to the shield support on the side close to the coal wall. The eye hole 7 on the illustrated chute base 2 is connected by inserting a pin shaft to the eye hole of the pushing device at the middle position of the bottom of the shield support; the shield support is positioned on the base limit groove formed by the base 5.

[0040] Removal of the support with a damaged hydraulic system: Remote control the hydraulic cylinder 6 on this device. The hydraulic cylinder 6 drives the anchor chain 4 to pull the support out of the support socket, achieving the removal.

[0041] Removal of a normal support: While the support to be removed is being pushed and self-propelled, remotely control the hydraulic cylinder 6 on this device to supply liquid, so that the support to be removed can be pulled out at one time by the stroke of the shield support pushing rod + the stroke of the hydraulic cylinder 6 of this device, improving the efficiency of support removal.

[0042] Pulling and moving the shield support: Before pulling and moving the shield support, extend the pushing rod of the shield support, push this device forward for a certain distance, connect the winch to the pulling ear on this device and apply force. Pull the shield support forward by one step distance in the way of the shield support being pushed and self-propelled, achieving the pulling and moving of the shield support.

[0043] 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydraulic support quick dismantling device, characterized in that: The invention comprises a base (5), wherein a shield frame installation groove (8) is provided at the middle position of the base (5), and a slide groove base (2) is provided at one end of the base (5), wherein a guide pulley (3) is installed on the slide groove base (2), and an anchor chain (4) is wound around the outer side of the guide pulley (3); One end of the anchor chain (4) is connected to a hydraulic assembly, and the other end is connected to a hydraulic support. The hydraulic assembly is mounted on the slideway base (2). The hydraulic assembly can drive the anchor chain (4) to pull the hydraulic support to move.

2. A hydraulic support quick disassembly device according to claim 1, characterized in that: The hydraulic assembly comprises a guide rod (1) and a hydraulic cylinder (6) mounted on the guide rod (1), wherein the guide rod (1) is located on one side of the slideway base (2), and the output end of the hydraulic cylinder (6) is connected to a guide block (10).

3. The hydraulic support quick disassembly device according to claim 1 is characterized by: Standing plates (9) are installed on both sides of the base (5) to form a limiting groove in the middle of the base (5).

4. The hydraulic support quick disassembly device according to claim 1, characterized in that: A plurality of threaded mounting holes are provided at four corner positions on the base (5).

5. A hydraulic support quick disassembly device according to claim 4, characterized in that: The slide groove base (2) is provided with a plurality of positioning holes, and the positioning holes are detachably connected to the threaded mounting holes on the base (5).

6. The hydraulic support quick disassembly device according to claim 1, characterized in that: A protruding portion is provided at one end of the slide groove base (2), and an eyelet (7) is provided on the protruding portion, wherein the eyelet (7) is located at the top position of the shield frame mounting groove (8).

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