Protective device for tunneling working part of coal mining tunneling machine

Abstract

The utility model relates to the technical field of coal mining heading machines, in particular to a protective device for a heading working part of a coal mining heading machine. Comprising a power unit including a power part; the moving unit comprises a hydraulic cabin arranged on the power part and a hydraulic rod arranged on one side of the hydraulic cabin; the protection unit comprises a power cabin arranged at one end of the hydraulic cabin, a fixed plate arranged at the bottom of the power cabin, a top plate arranged at the bottom of the fixed plate, a movable plate arranged in the fixed plate and a second protection plate arranged at one end of the movable plate. The moving unit controls the protection unit to move along the guide rail assembly, so that the protection unit protects the two sides of the working gun head, the rotating unit controls the rotating plate to protect the front end of the working gun head, and therefore the problem that an existing protection device cannot protect the heading machine gun head, and the working gun head cannot be protected is solved. And meanwhile, a worker cannot carry and install the device conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of coal winning roadheader, in particular to a protection device for the tunneling working part of a coal winning roadheader. Background Art

[0002] A coal winning roadheader is a machine and equipment specially used for excavating straight underground roadways in coal mining. It mainly consists of a traveling mechanism, a working mechanism, a loading and transporting mechanism, a transfer mechanism and other parts. It realizes underground excavation and development work through a powerful propulsion mechanical device. The working part of the roadheader is mainly used for coal mining, and sharp cutter heads are arranged on its surface. After the roadheader finishes working, it is necessary to stop the machine and cut off the power supply after the rear support, the scraper plate and the boom "touch the ground", and protect the boom to prevent the boom of the roadheader from malfunctioning and causing casualty accidents. Most of the current protection devices adopt a cage-type protective cover made of mesh. After the machine stops, the staff will lift the cage-type protective cover onto the boom of the roadheader to achieve the purpose of protecting the boom. Strictly speaking, the cage-type protective cover cannot really play a safety role. At best, it can only be said that we have protective measures for the boom. As for whether it is safe and can really play a protective role, at the same time, the cage-type protective cover needs to be manually carried for installation and protection, and the cage-type protective cover is heavy, which is not convenient for the staff to install and carry. Content of the Utility Model

[0003] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part and in the abstract and title of the specification of this application to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0004] In view of the problems existing in the protection device in the above-mentioned prior art, the present utility model is proposed.

[0005] Therefore, the purpose of the present utility model is to provide a protection device for the tunneling working part of a coal winning roadheader, and its purpose is to solve the problems that the existing protection device cannot protect the boom of the roadheader and is not convenient for the staff to carry and install it.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: A protective device for the tunneling working part of a coal mining roadheader, comprising a power unit including a power component; a moving unit including a hydraulic chamber provided on the power component and a hydraulic rod provided on one side of the hydraulic chamber; and a protection unit including a power chamber provided at one end of the hydraulic chamber, a fixing plate provided at the bottom of the power chamber, a top plate provided at the bottom of the fixing plate, a moving plate provided inside the fixing plate, a second protection plate provided at one end of the moving plate, and a first protection plate provided inside the fixing plate and corresponding to the moving plate.

[0007] As a preferred solution of the protective device for the tunneling working part of the coal mining roadheader of the present utility model, wherein: Fixing bolts are provided inside the fixing plate and inside the moving plate.

[0008] As a preferred solution of the protective device for the tunneling working part of the coal mining roadheader of the present utility model, wherein: A connection assembly is provided on one side of the power component, a connection column is provided on one side of the connection assembly, and a working gun head is provided at one end of the connection column.

[0009] As a preferred solution of the protective device for the tunneling working part of the coal mining roadheader of the present utility model, wherein: Support columns corresponding to the hydraulic rod are provided on the power component.

[0010] As a preferred solution of the protective device for the tunneling working part of the coal mining roadheader of the present utility model, wherein: Support rings are equidistantly provided on the outer side of the connection column, and a guide rail assembly is provided on the support rings.

[0011] As a preferred solution of the protective device for the tunneling working part of the coal mining roadheader of the present utility model, wherein: The guide rail assembly includes a guide rail main body provided on the support ring, a moving groove provided inside the guide rail main body, and limiting grooves provided on the guide rail main body and on both sides of the moving groove.

[0012] As a preferred solution of the protective device for the tunneling working part of the coal mining roadheader of the present utility model, wherein: Support wheels corresponding to the moving groove are provided at the bottom of the top plate, and limiting columns corresponding to the limiting grooves are provided at the bottom of the top plate.

[0013] As a preferred solution of the protective device for the tunneling working part of the coal mining roadheader of the present utility model, wherein: A limiting rotating shaft is provided on one side of the power chamber, a hinge mechanism is provided on one side of the top plate, a rotating plate is provided at one end of the hinge mechanism, a connecting ring is provided on one side of the rotating plate, and a connecting rope is provided on the connecting ring.

[0014] As a preferred embodiment of the protection device for the tunneling working part of a coal mining roadheader of the present utility model, wherein: a steering column is provided at the top of the rotating plate.

[0015] As a preferred embodiment of the protection device for the tunneling working part of a coal mining roadheader of the present utility model, wherein: a limiting ring is provided at one end of the steering column.

[0016] The beneficial effects of the present utility model: The protection unit is controlled by the moving unit to move along the guide rail assembly, so that the protection unit protects both sides of the working gun head, and the rotating plate is controlled by the rotating unit to protect the front end of the working gun head, thus solving the problem that the existing protection device cannot protect the roadheader gun head and it is not convenient for the staff to carry and install it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the protection device for the tunneling working part of the coal mining roadheader of the present utility model.

[0019] Figure 2 It is a schematic diagram of the power unit structure of the protection device for the tunneling working part of the coal mining roadheader of the present utility model.

[0020] Figure 3 For the present utility model Figure 2 It is an enlarged schematic diagram of the structure at A in the present utility model.

[0021] Figure 4 It is a schematic diagram of the moving unit structure of the protection device for the tunneling working part of the coal mining roadheader of the present utility model.

[0022] Figure 5 It is a schematic diagram of the protection unit structure of the protection device for the tunneling working part of the coal mining roadheader of the present utility model.

[0023] Figure 6 It is a schematic diagram of the rotating unit structure of the protection device for the tunneling working part of the coal mining roadheader of the present utility model.

[0024] Description of the Drawings: 100, power unit; 101, power component; 102, connection component; 103, connection column; 104, support ring; 105, working gun head; 106, support column; 107, guide rail assembly; 107a, guide rail body; 107b, moving groove; 107c, limiting groove; 200, moving unit; 201, hydraulic chamber; 202, hydraulic rod; 300, protection unit; 301, top plate; 302, fixing plate; 303, fixing bolt; 304, support wheel; 305, limiting column; 306, protection plate 1; 307, protection plate 2; 308, moving plate; 309, rotating plate; 400, rotating unit; 401, power chamber; 402, limiting rotating shaft; 403, hinge mechanism; 404, steering column; 405, limiting ring; 406, connecting rope; 407, connecting ring. Detailed Description of the Embodiment

[0025] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the drawings of the specification.

[0026] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0027] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0028] Furthermore, the present utility model is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general ratio, and the schematic diagrams are only examples, which should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0029] Embodiment 1, refer to Figure 1 - Figure 6, which is the first embodiment of the present utility model, provides a protective device for the tunneling working part of a coal mining roadheader. This device includes a power unit 100, which includes a power component 101; a moving unit 200, which includes a hydraulic chamber 201 arranged on the power component 101, and a hydraulic rod 202 arranged on one side of the hydraulic chamber 201; and a protection unit 300, which includes a power chamber 401 arranged at one end of the hydraulic chamber 201, a fixing plate 302 arranged at the bottom of the power chamber 401, a top plate 301 arranged at the bottom of the fixing plate 302, a moving plate 308 arranged inside the fixing plate 302, a second protection plate 307 arranged at one end of the moving plate 308, and a first protection plate 306 arranged inside the fixing plate 302 and corresponding to the moving plate 308. By using the limiting columns 305 on both sides of the top plate 301 and the first protection plate 306 in combination, the top and both sides of the working gun head 105 are surrounded and protected, and at the same time, it prevents the staff from accidentally touching the working gun head 105 and causing harm to it.

[0030] Among them, fixing bolts 303 are arranged inside the fixing plate 302 and inside the moving plate 308. Through the fixing bolts 303, the moving plate 308 is tightly connected to the fixing plate 302, so as to fix the first protection plate 306 and the second protection plate 307 on both sides of the top plate 301, and protect the working gun head 105 together with the top plate 301.

[0031] During the use process, first, according to the size of the working gun head 105, control the telescopic movement of the moving plate 308 inside the fixing plate 302, so as to adjust the distance between the first protection plate 306 and the second protection plate 307 to make it adapt to the size of the working gun head 105, thereby increasing the applicable range of the device and the comfort of use for the staff. Since the hydraulic chamber 201 is installed on the power component 101, the hydraulic rod 202 will always be parallel to the connecting column 103, and the moving unit 200 and the protection unit 300 and the rotating unit 400 at one end of it are also parallel to the connecting column 103, and then parallel to the working gun head 105 at one end of the connecting column 103. When the working gun head 105 stops working, at this time, control the hydraulic chamber 201 to start the hydraulic rod 202, so that the hydraulic rod 202 pushes the power chamber 401 at its one end to move towards the working gun head 105. When the hydraulic rod 202 moves to the maximum distance, at this time, the top plate 301 is just located directly above the working gun head 105, and the limiting columns 305 on both sides of the top plate 301 and the first protection plate 306 are located on both sides of the working gun head 105, so as to protect the working gun head 105 and prevent the staff from accidentally touching the working gun head 105 and causing harm to the staff, thereby increasing the safety of the staff.

[0032] Example 2, refer to Figure 1 - Figure 6, which is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is that: a connection component 102 is provided on one side of the power component 101, a connection column 103 is provided on one side of the connection component 102, a working gun head 105 is provided at one end of the connection column 103, a support column 106 corresponding to the hydraulic rod 202 is provided on the power component 101, support rings 104 are equidistantly provided on the outer side of the connection column 103, and a guide rail assembly 107 is provided on the support rings 104. The guide rail assembly 107 includes a guide rail main body 107a provided on the support ring 104, a moving groove 107b provided in the guide rail main body 107a, and limit grooves 107c provided on the guide rail main body 107a and located on both sides of the moving groove 107b. The support wheels 304 and limit columns 305 at the bottom of the top plate 301 are supported and limited by the guide rail assembly 107, so as to support the top plate 301, thereby preventing the protection unit 300 and other devices from being too heavy, causing the hydraulic rod 202 to deflect downward and be damaged, and increasing the use safety and service life of the hydraulic rod 202.

[0033] Compared with Embodiment 1, further, support wheels 304 corresponding to the moving groove 107b are provided at the bottom of the top plate 301, limit columns 305 corresponding to the limit grooves 107c are provided at the bottom of the top plate 301, grooves are equidistantly opened in the moving groove 107b and the limit grooves 107c, and the size of the grooves is adapted to the size of the support wheels 304 and the limit columns 305. Thus, when the working gun head 105 is working, part of the coal cinder and dust accumulates in the moving groove 107b and the limit grooves 107c. Then, when the support wheels 304 and the limit columns 305 move, the coal cinder and dust accumulated in the moving groove 107b and the limit grooves 107c will be swept into the grooves and fall along the grooves.

[0034] During use, when the working gun head 105 stops working, the control hydraulic chamber 201 is actuated to start the hydraulic rod 202 at this time, so that the hydraulic rod 202 pushes the power chamber 401 at one end thereof towards the working gun head 105. Further, the power chamber 401 drives the top plate 301 at its bottom to move along the top of the guide rail main body 107a. At this time, the support wheels 304 on the top of the top plate 301 move in the moving groove 107b, and the limit posts 305 move in the limit groove 107c. Thus, the guide rail assembly 107 supports the support wheels 304 and the limit posts 305, and further supports the top plate 301 on its top, preventing the one end of the hydraulic rod 202 from deflecting downward due to the excessive weight of the top plate 301 and other devices, increasing the service safety and service life of the hydraulic rod 202; at the same time, when the working gun head 105 is working, the hydraulic rod 202 will contract to the side of the connecting assembly 102. At this time, a large amount of coal slag and dust will be generated around the working gun head 105. Further, the coal slag and dust will accumulate in the moving groove 107b and the limit groove 107c in the guide rail main body 107a. The moving groove 107b and the limit groove 107c are equidistantly provided with grooves, and the size of the grooves is adapted to the size of the support wheels 304 and the limit posts 305. Further, when the support wheels 304 and the limit posts 305 move, the coal slag and dust accumulated in the moving groove 107b and the limit groove 107c will be swept into the grooves and fall along the grooves, thus preventing the coal slag and dust accumulated inside from blocking the movement of the support wheels 304 and the limit posts 305, ensuring the stability during their movement.

[0035] The rest of the structure is the same as that of Embodiment 1.

[0036] Embodiment 3, referring to Figure 1 - Figure 6 , is the third embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a limit rotating shaft 402 is provided on one side of the power chamber 401, a hinge mechanism 403 is provided on one side of the top plate 301, a rotating plate 309 is provided at one end of the hinge mechanism 403, a connecting ring 407 is provided on one side of the rotating plate 309, and a connecting rope 406 is provided on the connecting ring 407. The flipping of the rotating plate 309 is controlled by the connecting rope 406, so that the rotating plate 309 shields and protects the front end of the working gun head 105, further increasing the protection range of the protection unit 300 for the working gun head 105.

[0037] Compared with Embodiment 2, further, a steering column 404 is provided on the top of the rotating plate 309, and a limit ring 405 is provided at one end of the steering column 404. The connecting rope 406 is protected at the bending part by the steering column 404, and the connecting rope 406 is limited by the limit ring 405, thus preventing the connecting rope 406 from running out of the limit ring 405 and causing wear and damage to the connecting rope 406. Further, the service life and service stability of the connecting rope 406 are increased.

[0038] One end of the connecting rope 406 is installed on the wire winding mechanism in the power cabin 401. The other end comes out between two groups of limit rotating shafts 402, then moves downward through the steering column 404 and is connected to the connecting ring 407 on one side of the rotating plate 309. Thus, the wire winding mechanism inside the power cabin 401 enables the rotating plate 309 to rotate along the hinge mechanism 403 through the connecting rope 406, so as to protect the front end of the working gun head 105 with the rotating plate 309.

[0039] During use, when the working gun head 105 is working, at this time, the top plate 301 is located on one side of the connecting component 102, and the rotating plate 309 is parallel to the top plate 301 and relies on the top of the guide rail assembly 107. When the working gun head 105 finishes working, at this time, control the hydraulic chamber 201 to start the hydraulic rod 202, so that the hydraulic rod 202 pushes the power chamber 401 at one end thereof towards the working gun head 105 until the top plate 301 moves to the top of the working gun head 105. Then, control the wire-releasing mechanism inside the power chamber 401 to release the wire. At this time, the rotating plate 309 will rotate downward around the hinge mechanism 403 due to its own gravity. Furthermore, the rotating plate 309 drives the connecting rope 406 inside the connecting ring 407 at one end thereof to move downward, and the steering column 404 will protect the connecting rope 406 at the turning point thereof. The limiting ring 405 limits the connecting rope 406 to prevent the connecting rope 406 from running out of the limiting ring 405, resulting in wear and damage of the connecting rope 406. Furthermore, the service life and service stability of the connecting rope 406 are increased, and the rotating plate 309 rotates downward and relies on one side of the top plate 301, thereby protecting the front end of the working gun head 105; when the working gun head 105 needs to work, at this time, first control the wire-receiving mechanism in the power chamber 401 to retract the connecting rope 406, thereby driving the rotating plate 309 at one end of the connecting rope 406 to rotate around the hinge mechanism 403 until the connecting rope 406 is retracted by a certain distance, so that at this time, the rotating plate 309 will be parallel to the top plate 301. Then, control the hydraulic chamber 201 to retract the hydraulic rod 202. At this time, the supporting wheel 304 at the bottom of the top plate 301 will move along the moving groove 107b towards the connecting component 102 until the hydraulic rod 202 is completely retracted. At this time, one side of the top plate 301 is closely attached to the power component 101, and the rotating plate 309 on one side of the top plate 301 covers above the guide rail main body 107a. During operation, the rotating plate 309 will reduce the dust and coal cinder entering the moving groove 107b and the limiting groove 107c, thereby preventing the coal cinder and dust from blocking the moving groove 107b and the limiting groove 107c, which is not convenient for the supporting wheel 304 and the limiting column 305 to move above them. Furthermore, the service stability of the supporting wheel 304 and the limiting column 305 is increased. It should be specifically noted that the rotation angle of the end of the hinge mechanism 403 connected to the rotating plate 309 is between 0 - 90°. That is, when the rotating plate 309 is perpendicular to the top plate 301 and the rotating plate 309 rotates around the hinge mechanism 403, when the rotating plate 309 rotates to be parallel to the top plate 301, at this time, the rotating plate 309 cannot continue to rotate.

[0040] The remaining structure is the same as that of Embodiment 2.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A protective device for a coal mining machine's excavation working part, characterized in that: include A power unit (100) comprising a power component (101); A mobile unit (200) comprising a hydraulic compartment (201) disposed on the power component (101), and a hydraulic rod (202) disposed on one side of the hydraulic compartment (201); and, The protection unit (300) comprises a power compartment (401) arranged at one end of the hydraulic compartment (201), a fixed plate (302) arranged at the bottom of the power compartment (401), a top plate (301) arranged at the bottom of the fixed plate (302), a movable plate (308) arranged in the fixed plate (302), a second protection plate (307) arranged at one end of the movable plate (308), and a first protection plate (306) arranged in the fixed plate (302) and corresponding to the movable plate (308).

2. The protective device for the excavation working part of the coal mining machine according to claim 1, characterized in that: A fixing bolt (303) located inside the movable plate (308) is provided inside the fixing plate (302).

3. The protective device for the excavation working part of the coal mining machine according to claim 2, characterized in that: A connecting assembly (102) is provided on one side of the power component (101), a connecting column (103) is provided on one side of the connecting assembly (102), and a working gun head (105) is provided at one end of the connecting column (103).

4. The protective device for the excavation working part of the coal mining machine according to claim 3, characterized in that: The power component (101) is provided with a support column (106) corresponding to the hydraulic rod (202).

5. The protective device for the excavation working part of the coal mining machine according to claim 4, characterized in that: Support rings (104) are equidistantly arranged on the outside of the connection column (103), and a guide rail assembly (107) is arranged on the support ring (104).

6. The protective device for the excavation working part of the coal mining machine according to claim 5, characterized in that: The guide rail assembly (107) comprises a guide rail body (107a) arranged on the support ring (104), a movable groove (107b) arranged in the guide rail body (107a), and limiting grooves (107c) arranged in the guide rail body (107a) and located on both sides of the movable groove (107b).

7. The protective device for the excavation working part of the coal mining machine according to claim 6, characterized in that: A supporting wheel (304) corresponding to the movable groove (107b) is provided at the bottom of the top plate (301), and a limiting column (305) corresponding to the limiting groove (107c) is provided at the bottom of the top plate (301).

8. The protective device for the excavation working part of the coal mining machine according to claim 7, characterized in that: A limiting rotating shaft (402) is provided on one side of the power cabin (401), a hinge mechanism (403) is provided on one side of the top plate (301), a rotating plate (309) is provided at one end of the hinge mechanism (403), a connecting ring (407) is provided on one side of the rotating plate (309), and a connecting rope (406) is provided on the connecting ring (407).

9. The protective device for the excavation working part of the coal mining machine according to claim 8, characterized in that: A steering column (404) is provided on the top of the rotating plate (309).

10. The protective device for the excavation working part of the coal mining machine according to claim 9, characterized in that: A limiting ring (405) is provided at one end of the steering column (404).

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