Telescopic dozer blade for mine roadway repairing machine

Abstract

The utility model belongs to the technical field of coal mine engineering machinery, and particularly relates to a telescopic dozer blade for a mine roadway repairing machine, which comprises an outer frame connecting frame, a guide slide way, a left telescopic beam, a right telescopic beam and a driving part, and the outer frame connecting frame is hinged to the front part of the roadway repairing machine; the guide slide way is arranged in the outer frame connecting frame; the left telescopic beam and the right telescopic beam are symmetrically arranged in the guide slide way; the driving part is arranged in the outer frame connecting frame and drives the left telescopic beam and the right telescopic beam to independently slide in a telescopic mode or synchronously slide in a telescopic mode along the guide sliding ways. The width of the telescopic dozer blade is consistent with the width of the dozer body under the normal condition, the extension and widening of the dozer blade can be realized through hydraulic control when special requirements exist, and the stability of the dozer body is improved.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine engineering machinery technology, specifically relating to a telescopic bulldozer blade for a mine roadway repair machine. Background Technology

[0002] With the increasing depth of coal mining, roadway deformation has become a major problem restricting safe production in mines due to ground pressure and mining dynamic pressure. Currently, most mines have begun to use roadway repair machines for roadway repair. For roadways with larger cross-sections, the medium and large roadway repair machines currently on the market can fully meet the needs. However, for roadways with smaller cross-sections, especially those with steeper slopes, smaller roadway repair machines are required.

[0003] To enable operation in narrow alleyways, small roadway repair machines are generally designed to be lightweight and have a narrow body. During operation, they often need to be assisted by a bulldozer blade to ensure the stability of the machine and prevent it from tipping over. However, sometimes when operating in roadways with steep slopes, a bulldozer blade that is the same width as the machine body is no longer sufficient to meet the work requirements, thus limiting the working scenarios of small roadway repair machines. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that when a roadway repair machine operates in a roadway with a large slope, the bulldozer blade with the same width as the machine body cannot meet the working requirements. This invention proposes a telescopic bulldozer blade for a mining roadway repair machine. Under normal circumstances, the telescopic bulldozer blade has the same width as the machine body. When there are special needs, the bulldozer blade can be extended and widened through hydraulic control, thereby improving the stability of the machine body.

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

[0006] A telescopic bulldozer blade for a mine roadway repair machine includes:

[0007] The outer frame connecting frame is hinged at the front of the roadway repair machine;

[0008] Guide slide, which is arranged inside the outer frame connecting frame;

[0009] The left and right telescopic beams are symmetrically arranged inside the guide rail.

[0010] And a drive unit, which is located inside the outer frame connecting frame, drives the left telescopic beam and the right telescopic beam to extend and slide individually or synchronously along the guide slide.

[0011] According to the telescopic bulldozer blade for mine roadway repair machine of this utility model, the front end face of the outer frame connecting frame is provided with a bulldozer plate with an arc.

[0012] According to the telescopic bulldozer blade for mine roadway repair machine of this utility model, the outer frame connecting frame is a T-shaped frame.

[0013] According to the telescopic bulldozer blade for the mine roadway repair machine of this utility model, the outer frame connecting frame is provided with at least one pair of connecting holes, and the outer frame connecting frame is hinged to the roadway repair machine by means of a pin passing through the connecting holes.

[0014] According to the telescopic bulldozer blade for mine roadway repair machine of this utility model, the guide slide is a rectangular groove formed by strip plate and outer frame connecting frame.

[0015] According to the telescopic bulldozer blade for mine roadway repair machine of this utility model, both the left telescopic beam and the right telescopic beam include a crossbeam and an L-shaped support plate, wherein the L-shaped support plate is disposed at the outer end of the crossbeam.

[0016] According to the telescopic bulldozer blade for mine roadway repair machine of this utility model, further, multiple wear-resistant strips are fixed to the top of the left telescopic beam and the right telescopic beam.

[0017] According to the present invention, the telescopic bulldozer blade for mine roadway repair machine is further provided that there are two drive units, which drive the left telescopic beam and the right telescopic beam to slide respectively; each drive unit adopts a hydraulic cylinder, the end of the telescopic rod of the hydraulic cylinder is hinged to the left telescopic beam or the right telescopic beam by a pin, and the base of the hydraulic cylinder is hinged to the outer frame connecting frame and the strip plate by a pin.

[0018] The beneficial effects achieved by adopting the above technical solution are:

[0019] When the tunnel repair machine is working normally, the two hydraulic cylinders can be controlled to be in their shortest position, at which point the width of the bulldozer blade is the same as the width of the machine body. When the tunnel repair machine is working in harsh environments (such as encountering a steep slope), the two hydraulic cylinders can be controlled to extend to the required length, widening the bulldozer blade and further enhancing the stability of the machine body during operation. This effectively reduces the tendency of the equipment to tip over and improves the safety of tunnel operations. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. The drawings are merely illustrative of some embodiments of this utility model and are not intended to limit the scope of all embodiments of this utility model.

[0021] Figure 1 This is one of the structural schematic diagrams of the telescopic bulldozer blade used in the mine roadway repair machine according to an embodiment of this utility model;

[0022] Figure 2This is the second schematic diagram of the structure of the telescopic bulldozer blade for the mine roadway repair machine according to an embodiment of this utility model;

[0023] Figure 3 This is a top view of the outer frame connecting frame according to an embodiment of the present utility model;

[0024] Figure 4 yes Figure 3 Schematic diagram of the structure in the AA direction;

[0025] Figure 5 This is a schematic diagram of the guide slide of an embodiment of the present utility model;

[0026] Figure 6 This is a front view of the left telescopic beam according to an embodiment of the present invention;

[0027] Figure 7 This is a front view of the right telescopic beam according to an embodiment of the present invention.

[0028] The numbers in the diagram represent the following meanings:

[0029] 1. Outer frame connecting bracket, 101. Connecting hole, 2. Guide slide, 201. Strip plate, 3. Left telescopic beam, 4. Right telescopic beam, 401. Crossbeam, 402. L-shaped support plate, 5. Wear-resistant strip, 6. Bulldozer plate, 7. Pin shaft, 8. Hydraulic cylinder. Detailed Implementation

[0030] The following description, in conjunction with the accompanying drawings of specific embodiments of the present invention, will provide a clear and complete illustration of exemplary solutions. Unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art.

[0031] like Figure 1 and Figure 2 As shown, this embodiment discloses a telescopic bulldozer blade for a mine roadway repair machine, comprising an outer frame connecting frame 1, a guide slide 2, a left telescopic beam 3, a right telescopic beam 4, and a drive unit. The outer frame connecting frame 1 is hinged to the front of the roadway repair machine, serving both as a basic bulldozer function and as an auxiliary support structure to maintain the stability of the machine during operation. The guide slide 2 is arranged inside the outer frame connecting frame 1. The left telescopic beam 3 and the right telescopic beam 4 are symmetrically arranged inside the guide slide 2. The drive unit is located inside the outer frame connecting frame 1 and is used to drive the left telescopic beam 3 and the right telescopic beam 4 to extend and retract individually or synchronously along the guide slide 2.

[0032] The front end of the outer frame connecting frame 1 is provided with a curved bulldozing plate 6. The curved design of the bulldozing plate 6 improves the efficiency of the roadway repair machine in leveling the roadway and carrying out bulldozing operations.

[0033] like Figure 3 and Figure 4 As shown, the outer frame connecting frame 1 in this embodiment is a T-shaped frame. Two pairs of connecting holes 101 are provided on the outer frame connecting frame 1. The outer frame connecting frame 1 is hinged to the roadway repair machine by means of a pin passing through the connecting holes 101, thereby realizing a stable connection between the bulldozer blade and the roadway repair machine.

[0034] like Figure 5 As shown, the guide slide 2 is a rectangular groove enclosed by a strip plate 201 and an outer frame connecting frame 1. In this embodiment, the strip plate 201 consists of two pieces, upper and lower, respectively installed on the top and bottom walls inside the outer frame connecting frame 1, to guide the entire telescopic beam. The guide slide 2 and the telescopic beam are fitted and limited by a small gap to ensure that the left telescopic beam 3 and the right telescopic beam 4 can slide smoothly inside the guide slide 2, while the guide slide 2 can accommodate the left telescopic beam 3 and the right telescopic beam 4.

[0035] like Figure 6 and Figure 7 As shown, both the left telescopic beam 3 and the right telescopic beam 4 include a crossbeam 401 and an L-shaped support plate 402. The L-shaped support plate 402 is located at the outer end of the crossbeam 401. Here, the crossbeam 401 can be composed of multiple beams arranged side by side. In this embodiment, the crossbeam 401 is composed of two beams of different lengths.

[0036] Preferably, multiple wear-resistant strips 5 are fixed to the top of the left telescopic beam 3 and the right telescopic beam 4, which not only increases wear resistance and improves service life, but also reduces frictional resistance.

[0037] In this embodiment, there are two drive units, which drive the left telescopic beam 3 and the right telescopic beam 4 to slide respectively. Each drive unit uses a hydraulic cylinder 8, and the end of the telescopic rod of the hydraulic cylinder 8 is hinged to the crossbeam 401 and L-shaped support plate 402 of the left telescopic beam 3 or the right telescopic beam 4 via a pin. The base of the hydraulic cylinder 8 is hinged to the outer frame connecting frame 1 and the strip plate 201 via a pin. The hydraulic system of the tunnel repair machine controls the two hydraulic cylinders 8 to drive the left and right telescopic beams to smoothly extend and retract within the guide slide 2 inside the outer frame connecting frame 1. At the same time, the left and right telescopic beams can be locked at any position within the stroke of the hydraulic cylinder 8 by a hydraulic two-way lock.

[0038] The working principle is as follows:

[0039] When the tunnel repair machine is working normally, the two hydraulic cylinders 8 can be controlled to their shortest position via the hydraulic system, and simultaneously locked by a hydraulic two-way lock. At this time, the left telescopic beam 3 and the right telescopic beam 4 are completely integrated into the outer frame connecting frame 1, and the width of the bulldozer blade is the same as that of the tunnel repair machine body. When the tunnel repair machine is working in harsh environments, the two hydraulic cylinders 8 can be controlled to extend to the required length. The two hydraulic cylinders 8 drive the left telescopic beam 3 and the right telescopic beam 4 to extend along the guide slide 2, and are locked by a hydraulic two-way lock. The extension and retraction of the right telescopic beam 4 and the left telescopic beam 3 can be controlled individually or simultaneously.

[0040] It should be noted that when one element is described as "connected," "coupled," or "connected" to another element, it can mean that they are directly connected, coupled, or connected. However, it should be understood that there may be intermediate elements between them; that is, it covers both direct and indirect connection positions.

[0041] It should be noted that the use of words such as "one" or "a" does not necessarily indicate a quantity limitation. Words such as "including" or "contains" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0042] It should be noted that terms such as "up," "down," "left," and "right," which indicate orientation or positional relationship, are only used to express relative positional relationship. They are used to facilitate the description of this utility model and do not mean that the device or component referred to must have a specific orientation or 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.

[0043] The preferred embodiments for implementing this utility model have been described in detail above. However, it should be understood that these embodiments are merely illustrative and not intended to limit the scope, application, or construction of this utility model in any way. The scope of protection of this utility model is defined by the appended claims and their equivalents. Those skilled in the art can make numerous modifications to the foregoing embodiments under the teachings of this utility model, and all such modifications fall within the scope of protection of this utility model.

Claims

1. A telescopic bulldozer blade for a mine roadway repair machine, characterized in that, include: The outer frame connecting frame is hinged at the front of the roadway repair machine; Guide slide, which is arranged inside the outer frame connecting frame; The left and right telescopic beams are symmetrically arranged inside the guide rail. And a drive unit, which is located inside the outer frame connecting frame, drives the left telescopic beam and the right telescopic beam to extend and slide individually or synchronously along the guide slide.

2. The telescopic bulldozer blade for a mine roadway repair machine according to claim 1, characterized in that, The front end face of the outer frame connecting frame is provided with a bulldozing plate with an arc.

3. The telescopic bulldozer blade for a mine roadway repair machine according to claim 1, characterized in that, The outer frame connecting frame is a T-shaped frame.

4. The telescopic bulldozer blade for a mine roadway repair machine according to claim 1, characterized in that, The outer frame connecting bracket has at least one pair of connecting holes, and the outer frame connecting bracket is hinged to the roadway repair machine by means of a pin passing through the connecting holes.

5. The telescopic bulldozer blade for a mine roadway repair machine according to claim 1, characterized in that, The guide slide is a rectangular groove formed by a strip plate and an outer frame connecting frame.

6. The telescopic bulldozer blade for a mine roadway repair machine according to claim 1, characterized in that, Both the left and right telescopic beams include a crossbeam and an L-shaped support plate, with the L-shaped support plate located at the outer end of the crossbeam.

7. The telescopic bulldozer blade for a mine roadway repair machine according to claim 6, characterized in that, Multiple wear-resistant strips are fixed to the top of the left and right telescopic beams.

8. The telescopic bulldozer blade for a mine roadway repair machine according to claim 5, characterized in that, There are two drive units, which drive the left telescopic beam and the right telescopic beam to slide respectively; each drive unit is a hydraulic cylinder, and the end of the telescopic rod of the hydraulic cylinder is hinged to the left telescopic beam or the right telescopic beam by a pin, and the base of the hydraulic cylinder is hinged to the outer frame connecting frame and the strip plate by a pin.

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