Coal mining machine roller convenient to clean
By introducing a combination design of lead screw and crushing ring into the coal mining machine drum, the problem of difficult drum disassembly and cleaning in the existing technology is solved, realizing convenient drum cleaning and flexible working face adaptation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QINGHUAN ELECTRIC CO LTD
- Filing Date
- 2024-09-08
- Publication Date
- 2026-05-26
AI Technical Summary
Existing coal mining machine drums are difficult to disassemble and clean efficiently after a period of use, which affects work efficiency.
A coal mining machine drum structure that is easy to clean was designed. By combining a screw and a crushing ring, the crushing ring can be fixed and disassembled, which facilitates the separation of the spiral blades and scraper conveyor end plate inside the drum and simplifies the cleaning process.
It enables convenient disassembly and cleaning of the coal mining machine drum, improves work efficiency, and adapts to the needs of working faces of different depths.
Smart Images

Figure CN224282624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mining machine technology, and more specifically, to a coal mining machine drum that is easy to clean. Background Technology
[0002] A drum shearer mainly consists of an electric motor, traction unit, cutting unit, and auxiliary devices. The supporting equipment for a fully mechanized mining face typically includes a double-drum shearer, a flexible scraper conveyor, and hydraulic supports. After a period of use, the shearer drum usually requires maintenance and cleaning. Due to the complex internal structure of the shearer drum, disassembling it as a whole is difficult, affecting work efficiency. Therefore, a shearer drum that is easy to clean is needed. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a coal mining machine drum that is easy to clean, which has the advantage that the parts of the coal mining machine drum that need to be cleaned can be separated and disassembled without the need to separate the drum as a whole.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a coal mining machine drum that is easy to clean, comprising a motor shaft, a traction ring fixedly installed at the left end of the motor shaft, a first crushing ring fixedly installed at the left side of the traction ring, an inner cylinder fixedly installed at the middle of the left side of the first crushing ring, a second lead screw engaged with the left side of the inner cylinder, a second crushing ring engaged with the middle of the second lead screw, a first lead screw engaged with the inside of the second crushing ring, an outer cylinder engaged with the right end of the first lead screw, a spiral blade fixedly installed on the outside of the outer cylinder, and a scraper conveying end plate fixedly installed on the outside of the spiral blade.
[0005] As a preferred embodiment of this utility model, a lead screw three is rotatably mounted on the left end of the second crushing ring, a base plate is fixedly mounted on the middle of the lead screw three, and a drill bit is fixedly mounted on the left side of the base plate.
[0006] As a preferred embodiment of this utility model, the surface of the lead screw is threaded, and the right end of the lead screw is inserted into the left side of the outer cylinder.
[0007] In a preferred embodiment of this invention, the right side of the outer cylinder is inserted into the left side of the crushing ring.
[0008] As a preferred embodiment of this utility model, the second lead screw passes through the second crushing ring, and the right end of the second lead screw is inserted into the interior of the inner cylinder.
[0009] As a preferred embodiment of this utility model, the lead screw three penetrates the bottom plate, and the right end of the lead screw three engages with the contact portion of the crushing ring two.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. This utility model, by setting up a second crushing ring, fixes the second crushing ring to the left side of the inner cylinder body because the first screw passes through it. When the motor drives the coal mining machine drum to rotate, the second crushing ring on the left side of the inner cylinder body rotates through the motor shaft to mine coal at the working face. When the motor stops rotating, the second screw and the first screw are rotated to disengage from the inner and outer cylinder bodies respectively, thereby releasing the fixation of the second crushing ring. Since the right side of the outer cylinder body is inserted into the inside of the first crushing ring, the second crushing ring is removed, and the outer cylinder body is pulled out from the inside of the first crushing ring, thereby detaching from the spiral blades and scraper conveying end plate on the surface of the outer cylinder body. This allows for the separation and disassembly of the parts of the drum that need to be cleaned, and the operation is simple.
[0012] 2. This utility model, by setting a base plate, with the lead screw three penetrating through the base plate and its right end inserted inside the crushing ring two, fixes the base plate to the left side of the crushing ring two. Rotating the lead screw three causes it to mesh with the crushing ring two, thereby controlling the distance between the base plate and the left side of the crushing ring two, driving the drill bit to move and adjusting the coal mining machine drum to create openings for different depths of working faces. This allows for flexible adjustment of the distance between the drill bit and the crushing ring two to adapt to different depths of working faces. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the spiral blade structure of this utility model;
[0015] Figure 3 This is a cross-sectional view of the outer cylinder structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the scraper conveyor end plate structure of this utility model;
[0017] Figure 5 This is a cross-sectional view of the second structure of the crushing ring of this utility model.
[0018] In the diagram: 1. Motor shaft; 2. Traction ring; 3. Crushing ring one; 4. Inner cylinder; 5. Crushing ring two; 6. Lead screw one; 7. Outer cylinder; 8. Spiral blade; 9. Scraper conveyor end plate; 10. Lead screw two; 11. Base plate; 12. Lead screw three; 13. Drill bit. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] like Figures 1 to 5 As shown, this utility model provides a coal mining machine drum that is easy to clean, including a motor shaft 1. A traction ring 2 is fixedly installed at the left end of the motor shaft 1. A crushing ring 3 is fixedly installed at the left side of the traction ring 2. An inner cylinder 4 is fixedly installed at the middle of the left side of the crushing ring 3. A screw 10 is engaged with the left side of the inner cylinder 4. A crushing ring 5 is engaged with the middle of the screw 10. A screw 6 is engaged with the inside of the crushing ring 5. An outer cylinder 7 is engaged with the right end of the screw 6. A spiral blade 8 is fixedly installed on the outside of the outer cylinder 7. A scraper conveyor end plate 9 is fixedly installed on the outside of the spiral blade 8.
[0021] By setting a second crushing ring 5, and with the first screw 6 passing through it, the second crushing ring 5 is fixed to the left side of the inner cylinder 4. When the motor drives the coal mining machine drum to rotate, the second crushing ring 5 on the left side of the inner cylinder 4 is rotated through the motor shaft 1 to mine coal at the working face. When the motor stops rotating, the second screw 10 and the first screw 6 are rotated to disengage from the inner cylinder 4 and the outer cylinder 7 respectively, thereby releasing the fixation of the second crushing ring 5. Since the right side of the outer cylinder 7 is inserted into the first crushing ring 3, the second crushing ring 5 is removed, and the outer cylinder 7 is pulled out from the inside of the first crushing ring 3, thereby separating the spiral blades 8 and the scraper conveyor end plate 9 on the surface of the outer cylinder 7. This allows for the separation and disassembly of the parts of the drum that need to be cleaned, making the operation simple.
[0022] Among them, the left end of the second crushing ring 5 is rotatably mounted with a screw 12, the middle of the screw 12 is fixedly mounted with a base plate 11, and the left side of the base plate 11 is fixedly mounted with a drill bit 13.
[0023] By setting a base plate 11, and since the lead screw 12 passes through the base plate 11 and its right end is inserted into the crushing ring 2 5, the lead screw 12 fixes the base plate 11 to the left side of the crushing ring 2 5. By rotating the lead screw 12, the contact part between the lead screw 12 and the crushing ring 2 5 forms a mesh, thereby controlling the distance between the base plate 11 and the left side of the crushing ring 2 5, driving the drill bit 13 to move and thereby adjusting the coal mining machine drum to extract gaps for different working faces. This allows for flexible adjustment of the distance between the drill bit 13 and the crushing ring 2 5 to adapt to different working faces.
[0024] Among them, the surface of the lead screw 6 is threaded, and the right end of the lead screw 6 is inserted into the left side of the outer cylinder 7;
[0025] By setting the surface of the lead screw 6 to be threaded, and inserting the right end of the lead screw 6 into the left side of the outer cylinder 7, the lead screw 6 can be rotated to fix the crushing ring 5 to the left side of the outer cylinder 7.
[0026] The right side of the outer cylinder 7 is inserted into the left side of the crushing ring 3;
[0027] By setting the right side of the outer cylinder 7 to be inserted into the left side of the first crushing ring 3, when the second crushing ring 5 is released from its fixed position, the second crushing ring 5 can be removed because the right side of the outer cylinder 7 is inserted into the first crushing ring 3. The outer cylinder 7 can then be pulled out from the inside of the first crushing ring 3, thereby separating the spiral blades 8 and scraper conveying end plate 9 from the surface of the outer cylinder 7. This allows the parts of the drum that need to be cleaned to be separated and disassembled.
[0028] Among them, the second screw 10 passes through the second crushing ring 5, and the right end of the second screw 10 is inserted into the inner cylinder 4.
[0029] By setting the second screw 10 to pass through the second crushing ring 5, and inserting the right end of the second screw 10 into the inner cylinder 4, the second screw 10 can be rotated to fix the second crushing ring 5 on the left side of the inner cylinder 4.
[0030] Among them, the lead screw 312 penetrates the base plate 11, and the right end of the lead screw 312 meshes with the contact part of the crushing ring 2 5.
[0031] By setting a screw 12 that passes through the bottom plate 11 and the right end of the screw 12 engaging with the contact part of the crushing ring 5, the screw 12 can be rotated. Through the engagement between the screw 12 and the contact part of the crushing ring 5, the distance between the bottom plate 11 and the left side of the crushing ring 5 is controlled, thereby driving the drill bit 13 to move and adjusting the coal mining machine drum to make openings for different depths of working faces.
[0032] Working principle and usage process of this utility model:
[0033] Since screw 16 passes through crushing ring 25, crushing ring 25 is fixed to the left side of inner cylinder 4. When the motor drives the coal mining machine drum to rotate, the crushing ring 25 on the left side of inner cylinder 4 is rotated through motor shaft 1 to mine coal at the working face. When the motor stops rotating, screw 210 and screw 16 are rotated to disengage screw 210 and screw 16 from the inside of inner cylinder 4 and outer cylinder 7 respectively, thereby releasing the fixation of crushing ring 25. Since the right side of outer cylinder 7 is inserted into crushing ring 3, crushing ring 25 is removed and outer cylinder 7 is pulled out from inside crushing ring 3, thereby detaching the spiral blades 8 and scraper conveying end plate 9 on the surface of outer cylinder 7. This allows for the separation and disassembly of the parts of the drum that need to be cleaned, making the operation simple.
[0034] A base plate 11 is set up. Since the lead screw 12 passes through the base plate 11 and its right end is inserted into the crushing ring 2 5, the lead screw 12 fixes the base plate 11 to the left side of the crushing ring 2 5. Rotating the lead screw 12 causes it to mesh with the crushing ring 2 5, thereby controlling the distance between the base plate 11 and the left side of the crushing ring 2 5. This drives the drill bit 13 to move, thereby adjusting the coal mining machine drum to extract gaps at different depths of working faces. The distance between the drill bit 13 and the crushing ring 2 5 can be flexibly adjusted to adapt to different depths of working faces.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A coal mining machine drum that is easy to clean, comprising a motor shaft (1), characterized in that: A traction ring (2) is fixedly installed on the left end of the motor shaft (1). A crushing ring (3) is fixedly installed on the left side of the traction ring (2). An inner cylinder (4) is fixedly installed in the middle of the left side of the crushing ring (3). A screw (10) is engaged on the left side of the inner cylinder (4). A crushing ring (5) is engaged in the middle of the screw (10). A screw (6) is engaged inside the crushing ring (5). An outer cylinder (7) is engaged at the right end of the screw (6). A spiral blade (8) is fixedly installed on the outside of the outer cylinder (7). A scraper conveying end plate (9) is fixedly installed on the outside of the spiral blade (8).
2. The easy-to-clean coal mining machine drum according to claim 1, characterized in that: The left end of the second crushing ring (5) is rotatably mounted with a third screw (12), the middle part of the third screw (12) is fixedly mounted with a base plate (11), and the left side of the base plate (11) is fixedly mounted with a drill bit (13).
3. The easy-to-clean coal mining machine drum according to claim 1, characterized in that: The surface of the lead screw (6) is threaded, and the right end of the lead screw (6) is inserted into the left side of the outer cylinder (7).
4. A coal mining machine drum that is easy to clean according to claim 1, characterized in that: The right side of the outer cylinder (7) is inserted into the left side of the crushing ring (3).
5. A coal mining machine drum that is easy to clean according to claim 1, characterized in that: The second lead screw (10) passes through the second crushing ring (5), and the right end of the second lead screw (10) is inserted into the inner cylinder (4).
6. A coal mining machine drum that is easy to clean according to claim 2, characterized in that: The lead screw three (12) penetrates the bottom plate (11), and the right end of the lead screw three (12) meshes with the contact part of the crushing ring two (5).