Coal mining machine roller and coal discharging and dust preventing device thereof
By designing a coal discharge dustproof device on the coal mining machine drum and using welding protective sheets and barrier strips to form a coal discharge channel, the problem of coal flying out of the gap is solved, and equipment protection and production efficiency are improved.
Patent Information
- Application Number
- CN202421381840.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-17
AI Technical Summary
During the rotation of the coal miner drum, coal is prone to fly out and enter the gap between the drum and the planetary reduction device in the rocker arm of the coal miner, resulting in equipment wear and damage to the floating seal, increasing maintenance costs and reducing production efficiency.
A coal dust-proof device for coal mining machine drum is designed, including welding protective sheets inside the drum, and processing fixing grooves on the protective sheets, inserting barriers in the fixing grooves to form coal discharge channels to prevent coal from entering the gaps, and removably connecting them with the tooth seats through the cut-off teeth to facilitate replacement of wear parts.
It effectively prevents coal from entering the gap between the drum and the planetary reduction device, avoids equipment wear and seal damage, reduces maintenance costs, and improves production efficiency.
Smart Images
Figure CN222596055U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of coal mining, and particularly relates to a coal mining machine drum and a coal discharge dust prevention device thereof. Background Art
[0002] Coal mining machine is one of the important equipment to realize the mechanization and modernization of coal mine production. Mechanized coal mining can reduce physical labor, improve safety, and achieve the goals of high output, high efficiency and low consumption. Coal mining machine is generally composed of drum, rocker arm, traction transmission box, external traction, electrical system, hydraulic system and other parts. The drum of coal mining machine is an important working mechanism connected to the rocker arm. The broken coal is cut out from the coal wall by the blades on the drum, and then the coal is rotated along the axis direction of the drum and transported to the scraper conveyor for transportation.
[0003] In actual work, the rotation of the drum will cause the coal in the drum to be affected by centrifugal force, and some of the coal will fly out of the drum and fall on the planetary reduction device in the coal mining machine rocker arm behind the drum, and then fall onto the scraper conveyor for transportation. At this time, some of the coal will enter the gap between the drum and the planetary reduction device in the coal mining machine rocker arm as the drum rotates. As the drum rotates, the inside of the drum and the outer wall of the planetary reduction device in the coal mining machine rocker arm will wear. At the same time, some coal slag and coal powder will enter the inside of the planetary reduction device, causing damage to the floating seal, increasing the equipment maintenance cost, and greatly reducing production efficiency. In summary, there is an urgent need for a safe and efficient coal mining machine drum and its coal discharge and dust prevention device. Utility Model Content
[0004] In order to solve part or all of the technical problems existing in the above-mentioned prior art, on the one hand, the utility model provides a coal discharge and dust prevention device for a coal mining machine drum.
[0005] The coal mining machine drum includes a sleeve, a disc-shaped base arranged on the outer periphery of one end of the sleeve, a connecting plate arranged on the inner wall of one end of the sleeve, and a plurality of blades sleeved on the outer periphery of the sleeve, the plurality of blades extending from the end of the sleeve away from the disc-shaped base along the sleeve rotation line to the disc-shaped base, the blades and the edges of the disc-shaped base are provided with evenly distributed tooth seats, the tooth seats are inclined along the radial rotation direction of the sleeve, the tooth seats are provided with cutting teeth, and the coal discharge and dust prevention device includes a plurality of protective sheets arranged on the inner wall of the sleeve, the plurality of protective sheets extending from one end of the sleeve along the sleeve rotation line to the other end of the sleeve, the free end of the protective sheet is provided with a fixing groove, and a baffle is provided in the fixing groove.
[0006] Furthermore, in the above-mentioned coal discharge and dust prevention device for the coal mining machine drum, the distribution position of the protective sheet on the sleeve matches the distribution position of the blade on the sleeve.
[0007] As a specific implementation, in the above-mentioned coal discharge and dust prevention device for the coal mining machine drum, the baffle is a felt baffle.
[0008] As a specific implementation, in the above-mentioned coal discharge and dust prevention device for the coal mining machine drum, the number of the blades is 3 to 5.
[0009] As a specific implementation, in the above-mentioned coal discharge and dust prevention device for the coal mining machine drum, the number of the protective sheets is 3 to 5.
[0010] As a specific implementation, in the above-mentioned coal discharge and dust prevention device for the coal mining machine drum, the cutting teeth are detachably arranged on the tooth seat.
[0011] As a specific implementation, in the above-mentioned coal discharge and dust prevention device for the coal mining machine drum, the baffle is detachably arranged in the fixed groove.
[0012] As a specific implementation, in the above-mentioned coal discharge and dust prevention device for the coal mining machine drum, the connection between the protective sheet and the inner wall of the sleeve is welding.
[0013] On the other hand, the utility model also provides a coal shearer drum, which includes the above-mentioned coal discharge and dust prevention device for the coal shearer drum.
[0014] The coal mining machine drum and its coal discharge dust prevention device of the utility model have the following advantages and positive effects:
[0015] (1) The device welds a protective sheet inside the drum and processes a fixing groove on the protective sheet, in which a retaining bar is inserted, thereby effectively preventing the coal from entering the gap between the drum and the planetary reduction device in the rocker arm of the coal mining machine as the drum rotates when cutting coal, thereby causing wear on the outer surfaces of the drum and the planetary reduction device in the rocker arm of the coal mining machine, and at the same time preventing small pieces of coal and coal powder from entering the planetary reduction device and causing damage to the floating seal;
[0016] (2) In the device, the cutting teeth and the tooth seat are connected by a detachable thread, and the retaining bar is detachably arranged in the fixed groove. When the cutting teeth or retaining bar are worn or fall off after using the coal mining machine drum for a period of time, they can be replaced more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the utility model and constitute a part of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0018] Figure 1 The utility model is a structural schematic diagram of a coal mining machine drum and a coal discharge and dust prevention device thereof.
[0019] Description of reference numerals:
[0020] 1-sleeve, 2-disc base, 3-connecting plate, 4-blade, 5-tooth seat, 6-cutting tooth, 7-protective sheet, 8-fixing groove, 9-blocking bar. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] like Figure 1As shown, on the one hand, the utility model discloses a coal discharge and dust prevention device for a coal mining machine drum, the coal mining machine drum comprises a sleeve 1, a disc-shaped base 2 arranged on the outer periphery of one end of the sleeve 1, a connecting plate 3 arranged on the inner wall of one end of the sleeve 1, and a plurality of blades 4 sleeved on the outer periphery of the sleeve 1, the plurality of blades 4 extend from the end of the sleeve 1 away from the disc-shaped base 2 along the rotation line of the sleeve 1 to the disc-shaped base 2, two adjacent blades 4 and the area formed by the outer periphery of the sleeve 1 between the two adjacent blades 4 form a coal conveying channel for conveying coal from one end to the other end, the sleeve 1 is connected to the output shaft of the planetary reduction device through the connecting plate 3, the blades 4 and the edges of the disc-shaped base 2 are provided with uniformly distributed tooth seats 5, the tooth seats 5 are inclined along the radial rotation direction of the sleeve 1, and the tooth seats 5 are provided with A pick 6 is provided, and the coal discharge and dust prevention device includes a plurality of protective sheets 7 arranged on the inner wall of the sleeve 1. The plurality of protective sheets 7 extend from one end of the sleeve 1 along the rotation line of the sleeve 1 to the other end of the sleeve 1. The area surrounded by two adjacent protective sheets 7 and the inner wall of the sleeve 1 between them forms a coal discharge channel. A fixed groove 8 is opened at the free end of the protective sheet 7, and a baffle 9 is arranged in the fixed groove 8. One side of the baffle 9 extending from the fixed groove 8 can just contact the outer wall of the planetary reduction device in the rocker arm of the coal mining machine. When the drum of the coal mining machine rotates, the coal discharge channel formed by the protective sheets 7, the baffle 9 and the sleeve 1 can prevent coal from entering the gap between the inside of the drum and the planetary reduction device in the rocker arm of the coal mining machine, and at the same time, the coal that has entered the gap can be rotated out to achieve the coal discharge effect.
[0023] Furthermore, in the coal discharge and dust prevention device for the coal mining machine drum of the utility model, the distribution position of the protective sheet 7 on the sleeve 1 matches the distribution position of the blade 4 on the sleeve 1. With such an arrangement, the coal cut by the pick 6 can be transported to the scraper conveyor through the coal conveying channel during the rotation of the sleeve 1 in the specified direction, and the coal slag that enters the gap between the inside of the drum and the planetary reduction device can be rotated out through the coal discharge channel, thereby achieving the coal discharge effect.
[0024] As a specific implementation, in the coal discharge dust prevention device for the coal mining machine drum of the utility model, the baffle 9 is a felt baffle. Of course, the baffle 9 can also be made of other barrier means such as rubber and steel wire, as long as it does not affect the normal rotation of the drum and can withstand the flying coal fragments.
[0025] As a specific implementation, in the coal discharge and dust prevention device for the coal mining machine drum of the utility model, the number of blades 4 is 3 to 5, more specifically, the number of blades 4 is 3. Of course, the specific number of blades 4 needs to be set according to actual usage and is not limited here.
[0026] As a specific implementation, in the coal discharge and dust prevention device for the coal mining machine drum of the utility model, the number of protective plates 7 is 3 to 5, more specifically, the number of protective plates 7 is 3. Of course, the number of specific blades 4 needs to be set according to actual usage conditions and is not limited here.
[0027] As a specific embodiment, in the coal removal and dust prevention device for the coal mining machine drum of the utility model, the pick 6 is detachably arranged on the tooth seat 5. More specifically, the pick 6 and the tooth seat 5 are detachably threadedly connected. With such an arrangement, when the pick 6 is worn or falls off after using the coal mining machine drum for a period of time, it can be replaced more conveniently.
[0028] As a specific implementation mode, in the coal discharge and dust prevention device for the coal mining machine drum of the utility model, the baffle 9 is detachably arranged in the fixed groove 8. More specifically, the fixed groove 8 is a T-shaped fixed groove, and the baffle 9 is a T-shaped baffle matching it. The T-shaped baffle can be inserted into the T-shaped fixed groove from the opening of the T-shaped fixed groove away from the connecting plate 3. After using the coal mining machine drum for a period of time, when the T-shaped baffle is worn or falls off, the T-shaped baffle to be replaced can be pulled out from the opening of the T-shaped fixed groove away from the connecting plate 3, and replaced with a new T-shaped baffle. The replacement is convenient and quick.
[0029] As a specific implementation, in the coal discharge and dust prevention device for the coal mining machine drum of the utility model, the connection between the protective sheet 7 and the inner wall of the sleeve 1 is welding. Of course, the protective sheet 7 can also be fixed to the inner wall of the sleeve 1 by other methods such as one-piece molding.
[0030] On the other hand, the utility model also provides a coal mining machine drum, which includes the above-mentioned coal discharge and dust prevention device for the coal mining machine drum.
[0031] The working principle of the coal mining machine drum and its coal discharge dust prevention device of the utility model is:
[0032] After the coal mining machine drum cuts the coal from the coal mine, it is transported to the scraper conveyor through the coal conveying channel for transportation. During this process, the coal slag that enters the gap between the inside of the drum and the planetary reduction device can be rotated out through the coal discharge channel, achieving a dust-proof coal discharge effect.
[0033] In summary, compared with the prior art, the coal mining machine drum and its coal discharge dust prevention device of the utility model have the following advantages and positive effects:
[0034] (1) The device welds a protective sheet 7 inside the drum, and processes a fixing groove 8 on the protective sheet 7, in which a retaining bar 9 is inserted, thereby effectively preventing the coal from entering the gap between the drum and the planetary reduction device in the rocker arm of the coal mining machine as the drum rotates when cutting coal, thereby causing wear on the outer surfaces of the drum and the planetary reduction device in the rocker arm of the coal mining machine, and at the same time preventing small pieces of coal and coal powder from entering the planetary reduction device and causing damage to the floating seal;
[0035] (2) In the present device, the cutting teeth 6 and the tooth seat 5 are detachably connected by thread, and the retaining bar 9 is detachably arranged in the fixing groove 8. When the cutting teeth 6 or the retaining bar 9 are worn or fall off after the coal mining machine drum has been used for a period of time, they can be replaced more conveniently.
[0036] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A coal-discharging and dust-proof device for a coal mining machine drum, the coal mining machine drum comprising a sleeve, a disc-shaped base arranged on the outer periphery of one end of the sleeve, a connecting plate arranged on the inner wall of one end of the sleeve, and a plurality of blades sleeved on the outer periphery of the sleeve, the plurality of blades extending from the end of the sleeve away from the disc-shaped base along the sleeve rotation line to the disc-shaped base, the blades and the edges of the disc-shaped base are both provided with uniformly distributed tooth seats, the tooth seats are inclined along the radial rotation direction of the sleeve, and the tooth seats are provided with cutting teeth, characterized in that: The coal discharge dust prevention device includes a plurality of protective plates arranged on the inner wall of the sleeve, and the plurality of protective plates extend from one end of the sleeve along the sleeve rotation line to the other end of the sleeve. A fixing groove is opened at the free end of the protective plate, and a baffle is arranged in the fixing groove.
2. The coal discharge dust prevention device for a coal mining machine drum according to claim 1, characterized in that: The distribution positions of the protection sheets on the sleeve match the distribution positions of the blades on the sleeve.
3. The coal discharge and dust prevention device for a coal mining machine drum according to claim 1, characterized in that: The baffle is a felt baffle.
4. The coal discharge and dust prevention device for a coal mining machine drum according to claim 1, characterized in that: The number of the blades is 3 to 5.
5. The coal discharge dust prevention device for a coal mining machine drum according to claim 1, characterized in that: The number of the protective sheets is 3 to 5.
6. The coal discharge dust prevention device for a coal mining machine drum according to claim 1, characterized in that: The cutting teeth are detachably arranged on the tooth seat.
7. The coal discharge dust prevention device for a coal mining machine drum according to claim 1, characterized in that: The blocking bar is detachably arranged in the fixing groove.
8. The coal discharge and dust prevention device for a coal mining machine drum according to claim 1, characterized in that: The protective sheet is connected to the inner wall of the sleeve by welding.
9. A coal mining machine drum, characterized in that: The coal mining machine drum includes the coal discharge and dust prevention device according to any one of claims 1-8.