Sliding type roof protection device for driving and anchoring all-in-one machine

Abstract

The utility model belongs to the technical field of coal mine underground roof control and maintenance, and particularly relates to a sliding type roof protection device for a digging and anchoring all-in-one machine, which comprises a fixing frame, a forepoling supporting device, two supporting roof plates and two coal blocking curtains, and the fixing frame is fixedly arranged at the top of the front end of the digging and anchoring all-in-one machine; the forepoling supporting device is arranged on the fixing frame in a relative translation and telescopic mode. The two supporting top plates are fixedly arranged on the two sides of the upper portion of the front end of the forepoling supporting device respectively. The two coal blocking curtains are fixedly arranged on the two sides of the lower portion of the front end of the forepoling supporting device respectively, and a cutting arm of the digging and anchoring all-in-one machine can penetrate through the space between the two coal blocking curtains. According to the utility model, the support top plate supports the unsupported area in time through free expansion and contraction, so that the working safety, stability and tunneling efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground roof control and maintenance of coal mines, and in particular relates to a sliding roof protection device for an integrated digging and anchoring machine. Background Art

[0002] Integrated excavator-anchor machines are widely used in coal mining in my country. The tunnel needs to be supported during the excavation process. The temporary support technology after tunnel excavation plays an important role in the mining process.

[0003] At present, when the anchor-digger is working forward, the empty top area above the cutting part cannot be supported in time, resulting in a long empty top time, prone to local safety accidents, prominent safety hazards, affecting the excavation efficiency, and wasting working time. Therefore, it is very necessary to design a sliding top protection device for the anchor-digger. Summary of the invention

[0004] The purpose of the utility model is to solve the problem that the existing drilling and anchoring machine has a long empty top time and cannot provide timely support during the excavation process. A sliding top protection device for the drilling and anchoring machine is proposed. The supporting top plate can provide timely support to the empty top area through free extension and retraction, thereby improving work safety, stability and excavation efficiency.

[0005] To achieve the above purpose, the technical solution adopted is:

[0006] A sliding top protection device for a drilling and anchoring machine, comprising:

[0007] A fixing frame, which is fixedly mounted on the front top of the anchoring and digging machine;

[0008] A forward exploration support device, which is relatively translatable and retractable and is arranged on the fixing frame;

[0009] Two supporting top plates are respectively fixedly arranged on both sides above the front end of the forward exploration supporting device;

[0010] And two coal blocking curtains are respectively fixedly arranged on both sides below the front end of the front exploration support device, and the space between the two coal blocking curtains is used for the cutting arm of the mining and anchoring machine to pass through.

[0011] According to the sliding top protection device for the integrated digging and anchoring machine of the utility model, further, the fixing frame is fixed to the front end top of the integrated digging and anchoring machine through a pin shaft.

[0012] According to the sliding top protection device for the integrated digging and anchoring machine of the utility model, further, a pair of guide rails are arranged opposite to each other on both sides of the width direction of the fixed frame.

[0013] According to the sliding top protection device for the integrated mining and anchoring machine of the utility model, further, the front exploration support device is a T-shaped structure, including an integrally designed horizontal part and a vertical part, and long sliding blocks matching the guide rails are arranged on both sides of the vertical part, and the long sliding blocks can slide back and forth along the guide rails.

[0014] According to the utility model, the sliding top protection device for the integrated drilling and anchoring machine further includes an oil cylinder, the tail end of which is connected and fixed to the fixing frame through a pin shaft, and the head end of which is connected and fixed to the end face of the vertical part of the front exploration support device through a pin shaft.

[0015] According to the sliding top protection device for the integrated drilling and anchoring machine of the utility model, further, the two supporting top plates are fixed on both sides above the horizontal part of the front exploration supporting device through pins.

[0016] According to the sliding top protection device for the integrated digging and anchoring machine of the utility model, further, the two coal retaining curtains are fixed to both sides below the horizontal part of the front exploration support device by bolts.

[0017] The beneficial effects achieved by adopting the above technical solution are:

[0018] During the excavation operation, the utility model realizes free extension and retraction of the oil cylinder by the inflow and outflow of oil, thereby pushing the forward exploration support device to translate and retract, thereby driving the coal retaining curtain and the supporting roof to retract and retract along with the forward exploration support device, so as to provide timely support for the empty roof area, reduce the empty roof distance, and expand the supporting area, thereby achieving effective control of the tunnel roof, preventing the occurrence of safety accidents caused by long empty roof time and large empty roof distance, and ensuring safe, continuous and stable construction operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention are briefly introduced below. The drawings are only used to show some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a sliding top protection device for an integrated digging and anchoring machine according to an embodiment of the utility model;

[0021] Figure 2 It is a front view of a sliding top protection device for an integrated digging and anchoring machine according to an embodiment of the utility model;

[0022] Figure 3 It is a top view of a sliding top protection device for an integrated drilling and anchoring machine according to an embodiment of the utility model.

[0023] The meanings of the numbers in the figure are:

[0024] 1. Fixed frame, 2. Front exploration support device, 201. Horizontal part, 202. Vertical part, 3. Support roof, 4. Coal curtain, 5. Pin shaft, 6. Guide rail, 7. Long slider, 8. Oil cylinder, 9. Bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings of the specific embodiments of the utility model to clearly and completely describe the exemplary scheme of the utility model. Unless otherwise defined, the technical terms or scientific terms used in the utility model should be the common meanings understood by people with ordinary skills in the relevant field.

[0026] like Figures 1 to 3 As shown, the sliding top protection device for the integrated digging and anchoring machine of this embodiment includes a fixed frame 1, a forward exploration support device 2, two support top plates 3 and two coal blocking curtains 4. The fixed frame 1 is fixedly installed on the front end top of the integrated digging and anchoring machine; the forward exploration support device 2 is relatively translated and telescopically arranged on the fixed frame 1. When the fixed frame 1 is tilted, the forward exploration support device 2 maintains the same inclination angle with it. The two support top plates 3 are respectively fixedly arranged on both sides above the front end of the forward exploration support device 2. Through the translation and telescoping of the support top plates 3, the forward extension distance can be adjusted so that the support top plates 3 can push the tunnel roof to play a supporting role. The two coal blocking curtains 4 are respectively fixedly arranged on both sides below the front end of the forward exploration support device 2. The space between the two coal blocking curtains 4 can be used for the cutting arm of the integrated digging and anchoring machine to pass through. During the excavation operation, the coal blocking curtains 4 can prevent the high-speed falling coal from hitting the integrated digging and anchoring machine, thereby protecting the integrated digging and anchoring machine and the operating personnel.

[0027] Preferably, the fixing frame 1 is fixed to the front top of the anchoring machine by a pin shaft, so that the entire top protection device is fixed. This connection mode is convenient for personnel to quickly disassemble and assemble. A pair of guide rails 6 are arranged on both sides of the fixing frame 1 in the width direction.

[0028] Furthermore, the front exploration support device 2 is a T-shaped structure, including an integrally designed horizontal portion 201 and a vertical portion 202, and long sliders 7 matching the guide rail 6 are arranged on both sides of the vertical portion 202, and the long sliders 7 can slide back and forth along the guide rail 6. Two supporting top plates 3 are fixed to both sides above the horizontal portion 201 of the front exploration support device 2 through pins 5, and two coal blocking curtains 4 are fixed to both sides below the horizontal portion 201 of the front exploration support device 2 through bolts 9.

[0029] In addition to the above structure, the sliding top protection device also includes a cylinder 8, the tail end of the cylinder 8 is connected and fixed to the fixed frame 1 through a pin shaft, and the head end is connected and fixed to the end face of the vertical part 202 of the front exploration support device 2 through a pin shaft. Through the free extension and retraction of the cylinder 8, the front exploration support device 2 can be driven to move relatively horizontally and retractably on the guide rail 6.

[0030] Here’s how it works:

[0031] When the drilling and anchoring machine is excavating, the oil cylinder 8 can freely reciprocate and extend by the inflow and outflow of oil, pushing the forward exploration support device 2 to move back and forth, driving the coal curtain 4 and the supporting roof 3 to perform corresponding translation and extension movements. After moving into place, the supporting roof 3 pushes the tunnel roof to provide timely support for the empty roof area.

[0032] The forward extension distance of the supporting top plate 3 of the utility model can be flexibly adjusted according to the needs, which can reduce the empty top distance (i.e. the distance between the supporting top plate 3 and the front face of the tunnel) and expand the supporting area to avoid safety accidents caused by large empty top distance. The utility model effectively ensures the safety and continuity of construction and improves the excavation efficiency.

[0033] It should be noted that when one element is “connected”, “coupled” or “connected” to another element, it may mean that they are directly connected, coupled or connected, but it should be understood that there may be intermediate elements between the two; that is, the positional relationships of direct connection and indirect connection are covered.

[0034] It should be noted that the use of "a" or "an" and similar words does not necessarily indicate a quantitative limitation. "Include" or "comprising" and similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0035] It should be noted that terms such as "up", "down", "left" and "right" indicating orientation or positional relationship are only used to indicate relative positional relationship. This is for the convenience of describing the present utility model, and does not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0036] The preferred embodiments for implementing the present invention have been described in detail above, but it should be understood that the role of these embodiments is only to exemplify, and is not intended to limit the scope, applicability or configuration of the present invention in any way. The protection scope of the present invention is defined by the attached claims and their equivalents. A person of ordinary skill in the art can make many changes to the above embodiments under the guidance of the present invention, and these changes all fall within the protection scope of the present invention.

Claims

1. A sliding top protection device for a drilling and anchoring machine, characterized in that: include: A fixing frame, which is fixedly mounted on the front top of the anchoring and digging machine; A forward exploration support device, which is relatively translatable and retractable and is arranged on the fixing frame; Two supporting top plates are respectively fixedly arranged on both sides above the front end of the forward exploration supporting device; And two coal blocking curtains are respectively fixedly arranged on both sides below the front end of the front exploration support device, and the space between the two coal blocking curtains is used for the cutting arm of the mining and anchoring machine to pass through.

2. The sliding top protection device for the anchoring and digging machine according to claim 1 is characterized in that: The fixing frame is fixed to the front end top of the anchoring and digging machine through a pin shaft.

3. The sliding top protection device for an integrated anchoring and digging machine according to claim 1 or 2, characterized in that: A pair of guide rails are arranged opposite to each other on both sides of the fixed frame in the width direction.

4. The sliding top protection device for the anchoring and digging machine according to claim 3 is characterized in that: The forward exploration support device is a T-shaped structure, including a horizontal portion and a vertical portion of an integral design. Long sliders matching the guide rails are arranged on both sides of the vertical portion, and the long sliders can slide back and forth along the guide rails.

5. The sliding top protection device for the anchoring and digging machine according to claim 4 is characterized in that: It also includes an oil cylinder, the tail end of which is connected and fixed to a fixing frame through a pin shaft, and the head end of which is connected and fixed to an end face of a vertical portion of a forward exploration support device through a pin shaft.

6. The sliding top protection device for the anchoring and digging machine according to claim 4 is characterized in that: The two supporting top plates are fixed on both sides above the horizontal part of the front exploration supporting device through pins.

7. The sliding top protection device for the anchoring and digging machine according to claim 4 is characterized in that: The two coal blocking curtains are fixed on both sides below the horizontal part of the front exploration support device by bolts.

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