Coal pushing device of heading machine
By introducing a combined structure of telescopic parts, support arms and hydraulic cylinders into the coal pushing device of the boring machine, independent adjustment of the pitch angle and height of the pushing plate is achieved, and the coal rock leakage problem caused by the change of the pushing plate height in the prior art is solved, and the reliability and efficiency of the pushing coal are improved.
Patent Information
- Application Number
- CN202422129486.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-31
AI Technical Summary
When the existing boring machine coal pushing device adjusts the pitch angle, the height of the push plate from the ground changes, resulting in the bottom being unable to contain coal, affecting the effect of coal pushing.
The telescopic parts, support arms and push plate structures are adopted, combined with the use of hydraulic cylinders, and the pitch angle and height of the push plate are independently adjusted to ensure that the bottom of the push plate is close to the ground and avoid coal rock leakage.
When adjusting the pitch angle, keep the bottom of the push plate in contact with the ground to ensure that the coal rock is pushed smoothly onto the transport aircraft, improving the reliability and efficiency of coal push.
Smart Images
Figure CN223190420U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of coal pushing devices, in particular to a coal pushing device for a roadheader. Background Art
[0002] Coal mine tunnel excavation is first carried out by the roadheader, and then the rear scraper conveyor and belt conveyor are installed. Since the conditions for installing the roadheader transfer frame are not met in the early stage of tunnel excavation, a scraper loader or rock loader is needed to scrape the coal and rock loaded by the first conveyor onto the rear scraper conveyor and then transport it away.
[0003] Patent CN2020201859278 discloses a coal pushing device for a roadheader. Although the pitch angle of the push plate can be adjusted during use, the height of the push plate from the ground also changes when the pitch angle is adjusted, resulting in the bottom being unable to hold the coal when pushing the coal. Utility Model Content
[0004] The technical problem to be solved by the utility model is that although the pitch angle of the push plate can be adjusted when the existing patent is in use, the height of the push plate from the ground also changes when the pitch angle is adjusted, resulting in the bottom being unable to hold the coal when pushing the coal.
[0005] In order to achieve the above functions, the technical solution adopted by the present invention is as follows: A coal pushing device for a tunneling machine includes a telescopic part, a support arm and a push plate. The movable end of the telescopic part is provided with a fixed plate, the support arm is rotatably provided on the fixed plate, the side wall of the push plate is rotatably hinged to one end of the support arm, an adjusting part is provided between the other end of the support arm and the telescopic part, a connecting rod is provided on the support arm, a hydraulic cylinder 1 is provided between the connecting rod and the push plate, the movable end of the hydraulic cylinder 1 is rotatably hinged to the side wall of the push plate, and the fixed end of the hydraulic cylinder is rotatably sleeved on the connecting rod.
[0006] Preferably, the telescopic member includes a mounting plate and a second hydraulic cylinder, the fixed end of the second hydraulic cylinder is arranged on the mounting plate, and the movable end of the second hydraulic cylinder is fixed to the side wall of the fixed plate.
[0007] Preferably, the adjusting member includes a fixed rod and a hydraulic cylinder three, the fixed rod is arranged at the end of the support arm away from the push plate, the fixed end of the hydraulic cylinder three is rotatably hinged on the mounting plate, and the movable end of the hydraulic cylinder three is rotatably sleeved on the fixed rod.
[0008] Preferably, the support arm is arranged in a √-shaped structure.
[0009] Preferably, the cross section of the push plate is an arc-shaped structure, and baffles are provided at both ends of the push plate.
[0010] Preferably, the mounting plate is provided with a mounting hole.
[0011] The utility model adopts the above structure to achieve the following beneficial effects: when adjusting the pitch angle of the push plate, as soon as the hydraulic cylinder is extended or retracted, the push plate rotates upward or downward on the support arm to adjust the pitch angle of the push plate, and the rotation of the support arm on the fixed plate is adjusted by cooperating with the adjusting member to make the bottom of the push plate close to the ground, and the telescopic member is extended or retracted to push the coal rock onto the conveyor for transportation. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The overall structure of the embodiment of the utility model is shown in FIG. Figure 1 ;
[0013] Figure 2 The overall structure of the embodiment of the utility model is shown in FIG. Figure 2 ;
[0014] Figure 3 The overall structure of the embodiment of the utility model is shown in FIG. Figure 3 ;
[0015] Figure 4 The overall structure of the embodiment of the utility model is shown in FIG. Figure 4 .
[0016] Among them, 1. telescopic part, 2. support arm, 3. push plate, 4. fixed plate, 5. adjusting part, 6. connecting rod, 7. hydraulic cylinder one, 8. mounting plate, 9. hydraulic cylinder two, 10. fixing rod, 11. hydraulic cylinder three, 12. baffle, 13. mounting hole. DETAILED DESCRIPTION
[0017] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0018] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The present invention will be further described below in conjunction with the accompanying drawings.
[0019] like Figure 1-4As shown, the utility model proposes a coal pushing device for a roadheader, comprising a telescopic member 1, a support arm 2 and a push plate 3. The movable end of the telescopic member 1 is provided with a fixed plate 4, the support arm 2 is rotatably arranged on the fixed plate 4, the support arm 2 is a √-shaped structure, the side wall of the push plate 3 is rotatably hinged to one end of the support arm 2, the cross section of the push plate 3 is an arc-shaped structure, baffles 12 are provided at both ends of the push plate 3, an adjusting member 5 is provided between the other end of the support arm 2 and the telescopic member 1, and a connecting rod 6 is provided on the support arm 2. A hydraulic cylinder 7 is provided between the connecting rod 6 and the push plate 3. The movable end of the hydraulic cylinder 7 is rotatably hinged to the side wall of the push plate 3, and the fixed end of the hydraulic cylinder 7 is rotatably sleeved on the connecting rod 6. When adjusting the pitch angle of the push plate 3, the hydraulic cylinder 7 is extended and retracted, and the push plate 3 rotates upward or downward on the support arm 2 to adjust the pitch angle of the push plate 3. The rotation of the support arm 2 on the fixed plate 4 is adjusted by cooperating with the adjusting part 5, so that the bottom of the push plate 3 is close to the ground, and the telescopic part 1 is extended and retracted to push the coal rock onto the conveyor for transportation.
[0020] like Figure 3 As shown, the telescopic member 1 includes a mounting plate 8 and a hydraulic cylinder 2 9. The mounting plate 8 is provided with a mounting hole 13. The fixed end of the hydraulic cylinder 2 9 is provided on the mounting plate 8, and the movable end of the hydraulic cylinder 2 9 is fixed to the side wall of the fixed plate 4. The hydraulic cylinder 2 9 is extended to push the push plate 3 to push the coal rock onto the conveyor.
[0021] like Figure 4 As shown, the adjusting member 5 includes a fixed rod 10 and a hydraulic cylinder 3 11. The fixed rod 10 is provided at the end of the support arm 2 away from the push plate 3. The fixed end of the hydraulic cylinder 3 11 is rotatably hinged on the mounting plate 8. The movable end of the hydraulic cylinder 3 11 is rotatably sleeved on the fixed rod 10. The hydraulic cylinder 3 11 is extended and retracted to drive the support arm 2 to rotate on the fixed plate 4, so as to drive the push plate 3 to adjust the height up and down.
[0022] During specific use, when adjusting the pitch angle of the push plate 3, the hydraulic cylinder 1 7 is extended and retracted, and the push plate 3 rotates upward or downward on the support arm 2 to adjust the pitch angle of the push plate 3. By cooperating with the extension and retraction of the hydraulic cylinder 3 11, the support arm 2 can be driven to rotate on the fixed plate 4 to drive the push plate 3 to adjust the height up and down, so that the bottom of the push plate 3 is close to the ground and the coal rock is not easily leaked. At this time, the hydraulic cylinder 2 9 is extended to push the push plate 3 to push the coal rock to the conveyor for transportation.
[0023] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.
Claims
1. A coal pushing device for a roadheader, characterized by: It includes a telescopic part, a support arm and a push plate, the movable end of the telescopic part is provided with a fixed plate, the support arm is rotatably provided on the fixed plate, the side wall of the push plate is rotatably hinged to one end of the support arm, an adjusting part is provided between the other end of the support arm and the telescopic part, a connecting rod is provided on the support arm, a hydraulic cylinder 1 is provided between the connecting rod and the push plate, the movable end of the hydraulic cylinder 1 is rotatably hinged to the side wall of the push plate, and the fixed end of the hydraulic cylinder 1 is rotatably sleeved on the connecting rod.
2. A coal pushing device for a roadheader according to claim 1, characterized in that: The telescopic member comprises a mounting plate and a second hydraulic cylinder, wherein the fixed end of the second hydraulic cylinder is arranged on the mounting plate, and the movable end of the second hydraulic cylinder is fixedly arranged on the side wall of the fixed plate.
3. The coal pushing device for a roadheader according to claim 1, characterized in that: The adjusting member includes a fixed rod and a hydraulic cylinder three, the fixed rod is arranged at the end of the support arm away from the push plate, the fixed end of the hydraulic cylinder three is rotatably hinged on the mounting plate, and the movable end of the hydraulic cylinder three is rotatably sleeved on the fixed rod.
4. The coal pushing device for a roadheader according to claim 1, characterized in that: The support arm is arranged in a √-shaped structure.
5. The coal pushing device for a roadheader according to claim 1, characterized in that: The cross section of the push plate is an arc-shaped structure, and baffles are provided at both ends of the push plate.
6. The coal pushing device for a roadheader according to claim 2, characterized in that: The mounting plate is provided with mounting holes.