Hydraulic coal slipping cylinder for coal mine
By introducing opening and closing components, sealing components, and material collection components into the hydraulic coal chute, the problem of inadequate sealing was solved, achieving effective sealing of the discharge port and centralized diversion of coal slag, thus improving the ease of use of the equipment and the stability of the ventilation system.
Patent Information
- Application Number
- CN202423220775.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing hydraulic coal chutes suffer from poor sealing during use, leading to air and slag leakage, which affects the convenience of workers and the stability of the ventilation system.
A hydraulic coal chute including an opening and closing component, a sealing component, and a material collection component was designed. It adopts a combination structure of hydraulic cylinder, push arm, guide sleeve and sealing end cover, combined with sealing design of sealing ring and protective gasket, and material guide pipe structure that is wider at the top and narrower at the bottom, to achieve sealing protection of the discharge port and centralized collection of coal slag.
It effectively prevents airflow from leaking into the main circuit, avoids coal slag splashing, improves sealing and precise coal slag delivery, and ensures stable operation of the ventilation system and convenience for staff.
Smart Images
Figure CN223591597U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of coal mine operation especially relates to a hydraulic coal chute for coal mine. BACKGROUND
[0002] The coal chute is a kind of equipment for conveying coal in the roadway of coal mine underground. The position and angle of the coal chute are controlled by using hydraulic system to realize efficient coal conveying. It is usually used in the coal transfer process from the working face in mine to main transportation system.
[0003] At present, the closure structure of the discharge port of the existing hydraulic coal chute is usually composed of a hydraulic cylinder and an end cover connected with each other. However, in the actual application process, air flow leaks from the coal chute to the total return due to the poor sealing of the end cover, and the problem of roadway slagging is also prone to occur, thereby causing great inconvenience to the workers.
[0004] Therefore, the hydraulic coal chute for coal mine with sealing protection and material collecting function is proposed to solve the above-mentioned technical problems in the prior art. SUMMARY
[0005] In order to overcome the shortcomings of the existing hydraulic coal chute in the actual use process, such as poor sealing leading to air leakage and slag leakage, the technical problem is to provide a hydraulic coal chute for coal mine with sealing protection and material collecting function.
[0006] The technical scheme is as follows: a hydraulic coal chute for coal mine, comprising a coal chute, an opening and closing assembly, a sealing member and a material collecting assembly, the coal chute is provided with an opening and closing assembly on the outside, the opening and closing assembly comprises a hydraulic cylinder, a push arm, a guide sleeve and a sealing end cover, the hydraulic cylinder is installed on the outer wall of the coal chute, the hydraulic push rod end of the hydraulic cylinder is connected with the push arm, the guide sleeve is hingedly connected to the outer wall of the discharge port of the coal chute through a connecting seat, and the push arm is movably sleeved on the guide sleeve, the sealing end cover for closing the discharge port of the coal chute is connected to the guide sleeve, the sealing member capable of being attached to each other is connected between the coal chute and the sealing end cover, and the material collecting assembly for concentrating and collecting coal slag is arranged in the coal chute.
[0007] As a further optimization of the above technical scheme, the sealing member comprises a sealing ring and a protective gasket, the sealing ring is arranged on the inner side of the sealing end cover, the protective gasket is connected to the discharge port of the coal chute, and the sealing ring can be attached to the protective gasket.
[0008] As a further optimization of the above technical solutions, the aggregate assembly includes a sliding block and a material guide pipe, the inner wall of the coal chute is provided with guide grooves along the circumference near the protective gasket, each of the guide grooves is slidably sleeved with a sliding block, and the material guide pipe is connected between the sliding blocks, and the lower end of the material guide pipe can abut against the inner side of the sealing end cover.
[0009] As a further optimization of the above technical solutions, the material guide pipe is designed in a circular truncated cone shape with a wide upper end and a narrow lower end.
[0010] As a further optimization of the above technical solutions, the lower end of the material guide pipe can extend outward along the discharge opening of the coal chute.
[0011] As a further optimization of the above technical solutions, the upper end of the material guide pipe is provided with an inner bevel.
[0012] As a further optimization of the above technical solutions, the sealing ring is matched with the discharge opening of the coal chute.
[0013] As a further optimization of the above technical solutions, the sealing end cover can be flipped open to be perpendicular to the discharge opening of the coal chute.
[0014] The device can conveniently open or close the discharge opening of the coal chute through the control opening and closing assembly, and the sealing and protection of the coal chute can be realized through the sealing ring and the protective gasket, thereby further improving the sealing performance of the wind control system. The coal cinder can be concentrated and collected through the material guide pipe with a wide upper end and a narrow lower end, thereby accurately discharging the coal cinder into the belt conveying groove, and providing convenience for the workers. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a perspective view of the utility model.
[0016] Figure 2 It is a sectional view of the utility model.
[0017] Figure 3 It is an open state diagram of the sealing end cover of the utility model.
[0018] Figure 4 It is a perspective view of the sliding block and the material guide pipe of the utility model.
[0019] Mark 1_ coal chute, 2_ hydraulic cylinder, 3_ push arm, 4_ guide sleeve, 5_ sealing end cover, 6_ sealing ring, 7_ protective gasket, 8_ guide groove, 9_ sliding block, 10_ material guide pipe, 11_ inner bevel. DETAILED DESCRIPTION
[0020] The following description is only a preferred embodiment of the utility model, and does not limit the protection scope of the utility model.
[0021] Embodiment: the utility model provides a hydraulic pressure coal chute for coal mine, as shown in figure, Figures 1 to 4 The outer side of the coal chute 1 is provided with an opening and closing assembly, the opening and closing assembly comprises a hydraulic cylinder 2, a push arm 3, a guide sleeve 4 and a sealing end cover 5, the hydraulic cylinder 2 is installed on the outer side wall of the coal chute 1, the hydraulic push rod end of the hydraulic cylinder 2 is connected with the push arm 3, and the push arm 3 is designed in T-shaped structure, the outer side wall near the discharge port of the coal chute 1 is hingedly connected with the guide sleeve 4 through a connecting seat, a one-dimensional sliding groove is formed in the guide sleeve 4, and the T-shaped push arm 3 is movably sleeved in the sliding groove of the guide sleeve 4, which can push the guide sleeve 4 to reciprocate and turn over, the guide sleeve 4 is connected with the sealing end cover 5 for closing the discharge port of the coal chute 1, and the sealing end cover 5 can be turned over and opened to be perpendicular to the discharge port of the coal chute 1, which can avoid the phenomenon that the discharged coal cinder splashes on the sealing end cover 5 to cause abrasion; a sealing element is connected between the coal chute 1 and the sealing end cover 5, the sealing element comprises a sealing ring 6 and a protective gasket 7, the inner side of the sealing end cover 5 is provided with the sealing ring 6, the sealing ring 6 is matched with the discharge port of the coal chute 1, which is helpful to improve the sealing performance of the discharge port of the coal chute 1; the discharge port of the coal chute 1 is connected with the protective gasket 7, and the sealing ring 6 can be attached to the protective gasket 7, thereby improving the sealing performance of the discharge port of the coal chute 1, the coal chute 1 is internally provided with a material collecting assembly, the material collecting assembly can accurately concentrate the coal cinder discharged from the coal chute 1 into the belt conveying groove, and the material collecting assembly comprises a sliding block 9 and a material guide pipe 10, the inner side wall of the coal chute 1 is circumferentially spaced apart and provided with guide grooves 8 near the protective gasket 7, the sliding block 9 is slidably sleeved in each guide groove 8, and the material guide pipe 10 is connected between the sliding blocks 9, and the outer side wall of the upper part of the material guide pipe 10 is tightly attached to the inner side wall of the coal chute 1, so that the material guide pipe 10 can seal and block the guide grooves 8, so that the guide grooves 8 are in a hidden and shielded state, and the lower end of the material guide pipe 10 can abut against the inner side of the sealing end cover 5, and when the sealing end cover 5 is closed upward, the material guide pipe 10 can be pushed to move upward and reset.
[0022] In addition, as shown in Figures 2 to 4 The material guide pipe 10 is designed in circular truncated cone shape with the upper part being wide and the lower part being narrow, which is helpful to concentrate and collect the discharged coal cinder, and avoid the splashing and scattering phenomenon; when the sealing end cover 5 is turned over and opened, the lower end of the material guide pipe 10 can extend outward along the discharge port of the coal chute 1, which is helpful to accurately concentrate and guide the coal cinder; an inner inclined mouth 11 is formed in the upper end of the material guide pipe 10, which is helpful to guide the coal chute 1, and avoid the stagnation.
[0023] When the sealing end cover 5 is closed, the inside of the coal chute 1 can be filled with coal powder, so as to block the air flow and avoid the air flow from entering the main return. The sealing ring 6 and the protective gasket 7 can seal the discharge port of the coal chute 1, so as to further effectively block the air flow. In this way, the problem of air leakage in the roadway can be solved, and the stable and reliable operation of the ventilation system can be ensured. When the sealing end cover 5 needs to be opened, the hydraulic cylinder 2 is controlled to shorten the hydraulic push rod, so as to drive the push arm 3 to pull the guide sleeve 4 to swing. The guide sleeve 4 can drive the sealing end cover 5 to open outward around the connecting seat as the axis. When the sealing end cover 5 is opened, the guide pipe 10 will extend outward along the discharge port under the action of gravity and the coal residue. In this way, the coal residue can be collected and drained, so that the discharged coal residue can be concentrated and fallen into the belt conveying groove, avoiding the scattering and splashing.
[0024] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A hydraulic coal chute for coal mines, comprising a coal chute (1), characterized in that: It also includes an opening and closing assembly, a sealing element, and a material collection assembly. An opening and closing assembly is provided on the outside of the coal chute (1). The opening and closing assembly includes a hydraulic cylinder (2), a push arm (3), a guide sleeve (4), and a sealing end cap (5). A hydraulic cylinder (2) is installed on the outer wall of the coal chute (1). The end of the hydraulic push rod of the hydraulic cylinder (2) is connected to the push arm (3). The outer wall of the outlet of the coal chute (1) is hinged to the guide sleeve (4) through a connecting seat. The push arm (3) is movably sleeved on the guide sleeve (4). A sealing end cap (5) for closing the outlet of the coal chute (1) is connected on the guide sleeve (4). A sealing element that can fit together is connected between the coal chute (1) and the sealing end cap (5). A material collection assembly for collecting coal slag is provided inside the coal chute (1).
2. A hydraulic coal chute for coal mines according to claim 1, characterized in that: The sealing element includes a sealing ring (6) and a protective gasket (7). The sealing end cap (5) is provided with a sealing ring (6) on its inner side. The coal chute (1) is connected to the discharge port with a protective gasket (7), and the sealing ring (6) can fit with the protective gasket (7).
3. A hydraulic coal chute for coal mines according to claim 2, characterized in that: The material collection assembly includes a slider (9) and a guide pipe (10). The inner wall of the coal chute (1) is provided with guide grooves (8) spaced apart circumferentially near the protective gasket (7). Each guide groove (8) is fitted with a slider (9) that slides up and down. Each slider (9) is connected to a guide pipe (10), and the lower end of the guide pipe (10) can abut against the inner side of the sealing end cap (5).
4. A hydraulic coal chute for coal mines according to claim 3, characterized in that: The feed tube (10) has a frustum-shaped structure that is wider at the top and narrower at the bottom.
5. A hydraulic coal chute for coal mines according to claim 3, characterized in that: The lower end of the feed pipe (10) can extend outward along the discharge port of the coal chute (1).
6. A hydraulic coal chute for coal mines according to claim 3, characterized in that: The upper end of the feed tube (10) is provided with an inner oblique opening (11).
7. A hydraulic coal chute for coal mines according to claim 2, characterized in that: The sealing ring (6) fits into the discharge port of the coal chute (1).
8. A hydraulic coal chute for coal mines according to claim 1, characterized in that: The sealing end cap (5) can be flipped open to be perpendicular to the discharge port of the coal chute (1).