CN211117343U - Damping device of coal mining machine for coal mine - Google Patents
Damping device of coal mining machine for coal mine Download PDFInfo
- Publication number
- CN211117343U CN211117343U CN202020003516.2U CN202020003516U CN211117343U CN 211117343 U CN211117343 U CN 211117343U CN 202020003516 U CN202020003516 U CN 202020003516U CN 211117343 U CN211117343 U CN 211117343U
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- hydraulic
- screw rod
- fixed
- base
- mining machine
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Abstract
The utility model discloses a damping device of coal mine mining machine, which comprises a base, the screw rod, just smooth frame, steel sheet and hydraulic pressure cushioning device, the equal threaded connection in both ends of base has the screw rod, and the intrinsic spacing collar of cover on the screw rod, and the below cover that is located the spacing collar is equipped with first spring, the top of screw rod has all welded smooth frame, but slidable is fixed with the steel sheet between two smooth frames, on the upper plate of base, and the center department below that is located the steel sheet is fixed with a hydraulic pressure top section of thick bamboo, hydraulic pressure top section of thick bamboo internal seal is fixed with the hydraulic pressure ejector pin of liftable, be fixed with a hydraulic oil buffer cylinder on the bottom plate of base, and the defeated oil pipe intercommunication in one side bottom of a section of thick bamboo of one end of hydraulic. Has the advantages that: the overall structure divides the buffering power of the coal mining machine on the first spring of the steel plate and the hydraulic cushioning device, reduces the pressure of the single buffering device, prolongs the service life, and greatly improves the stability and the continuity of buffering.
Description
Technical Field
The utility model relates to a coal mine equipment technical field specifically is a damping device of coal mining machine.
Background
The coal mine is an area where people mine coal resources in a coal-rich mining area, and is generally divided into a mineworker coal mine and an opencast coal mine, when a coal seam is far away from the ground surface, coal is generally selected to be excavated into an underground excavation roadway, the mineworker coal mine is the mineworker coal mine, when the coal seam is very close to the ground surface, the coal is generally selected to be excavated by directly stripping a surface soil layer, the opencast coal mine is the opencast coal mine, a coal mining machine in coal mining equipment is one of main equipment of fully mechanized mining complete equipment, is mainly used for directly contacting with the coal seam, and the bottom of the coal mining equipment needs to be damped and buffered by means of a damping device to avoid breakage of some rigid parts, so the damping device of.
The coal-winning machine damping device who uses at present, its structure is more single, because the coal-winning machine is bulky, and weight is big, and stability requirement to damping device is higher, and some simple damping device, because the unicity of its structure leads to stability relatively poor, and single buffer is difficult to carry out effectively, and steady bradyseism to lead to the coal-winning machine to take place to vibrate at the during operation, the part drops easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the problems existing at present, the damping device of the coal mining machine for the coal mine is provided, the lifting screw rods are arranged at the two ends of the base, the slidable steel plate is arranged at the top end of each screw rod, the steel plate is utilized to support the equipment, meanwhile, the utility model has a certain cushioning function, the first spring is used for pushing the screw rod to lift, the screw rod is convenient to lift according to the lifting of the steel plate, the buffer device is matched with the first spring for use, double buffering is carried out, the buffering force is increased, the hydraulic buffer device is arranged on the base and is used as a supporting point for final buffering, when first spring and steel sheet bear great buffer capacity, provide stable, the follow-up holding power that lasts, overall structure divides the buffer capacity of coal-winning machine on steel sheet, first spring and hydraulic pressure bradyseism device, reduces monomer buffer's pressure, improves life, improves the stationarity of buffering greatly to solve the not enough and defect that prior art exists.
In order to realize the purpose, the utility model discloses a technical scheme is:
the damping device of the coal mining machine comprises a base with a cuboid structure, a screw rod, a sliding frame with a cube structure, a steel plate with an arc structure and a hydraulic damping device, wherein the screw rod is connected with two ends of the base through threads, an inherent limiting ring is sleeved on the screw rod, a first spring is sleeved on the screw rod and positioned below the limiting ring and used for supporting the steel plate and damping simultaneously, the sliding frame is welded at the top of the screw rod, the steel plate is fixed between the two sliding frames in a sliding manner and used for supporting equipment, the hydraulic damping device is arranged below the steel plate and comprises a hydraulic jacking cylinder, a hydraulic jacking rod, a hydraulic oil buffering cylinder and an oil conveying pipe, the hydraulic jacking cylinder is fixed on the upper plate of the base and positioned below the center of the steel plate, and is fixed with the hydraulic jacking cylinder, and the hydraulic jacking rod capable of being lifted is fixed in the hydraulic jacking cylinder in a sealing manner, be fixed with on the bottom plate of base the hydraulic oil buffer cylinder, just the one end of hydraulic oil buffer cylinder is through being equipped with defeated oil pipe communicate in one side bottom of a top section of thick bamboo for provide subsequent buffering holding power.
Preferably, a second spring is fixed inside one end of the hydraulic oil buffer cylinder, which is far away from the oil delivery pipe, and an extrusion plate is fixed at the other end of the second spring.
Preferably, the inside of the sliding frame is provided with a slot, the two ends of the steel plate are welded with flat inserting plates, and the inserting plates are provided with two sliding grooves.
Preferably, the sliding frame is provided with two bolt holes right above the sliding grooves, and the inserting plate is inserted into the bolt holes through the bolts for fixing.
Preferably, the middle part of the oil conveying pipe is connected with a high-pressure-resistant hose.
Since the technical scheme is used, the beneficial effects of the utility model are that:
1. the lifting screw rods are arranged at the two ends of the base, the slidable steel plates are arranged at the top ends of the screw rods, the steel plates are used for supporting equipment, and meanwhile, the device has a certain cushioning function, the first spring is used for supporting the screw rods to lift, so that the screw rods can lift according to the lifting of the steel plates and are matched with the first spring for use, double buffering is performed, and the buffering force is increased;
2. through being provided with hydraulic pressure bradyseism device on the base, as the strong point of last buffering, when first spring and steel sheet bear great buffer force, provide stable, continuous follow-up holding power, overall structure divides the buffer force of coal-winning machine on steel sheet, first spring and hydraulic pressure bradyseism device, reduces monomer buffer's pressure, improves life, improves the stationarity of buffering greatly.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an exploded schematic view of the connection between the middle sliding frame and the steel plate.
In the figure: 1. a base; 2. a screw; 3. a limiting ring; 4. a first spring; 5. a sliding frame; 6. a steel plate; 7. a hydraulic top cylinder; 8. a hydraulic ejector rod; 9. a hydraulic oil buffer cylinder; 10. a pressing plate; 11. a second spring; 12. an oil delivery pipe; 13. a slot; 14. a chute; 15. bolt holes; 16. and (4) bolts.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the accompanying drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, rather than all embodiments, based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.
Referring to fig. 1-2, the utility model provides a technical scheme, a damping device of coal mining machine for coal mine, comprising a base 1 with cuboid structure, a screw rod 2, a sliding frame 5 with cube structure, a steel plate 6 with arc structure and a hydraulic damping device, wherein both ends of the base 1 are in threaded connection with the screw rod 2, the screw rod 2 is sleeved with a limit ring 3, a first spring 4 is sleeved on the screw rod 2 and positioned below the limit ring 3 for supporting and buffering, the sliding frame 5 is welded on the top of the screw rod 2, the steel plate 6 is fixed between the two sliding frames 5 in a sliding way for bearing impact force, the hydraulic damping device is arranged below the steel plate 6 and comprises a hydraulic jacking cylinder 7, a hydraulic jacking rod 8, a hydraulic oil buffering cylinder 9 and an oil pipeline 12, the hydraulic jacking cylinder 7 is fixed on the upper plate of the base 1 and positioned below the center of the steel plate 6, the hydraulic top cylinder 7 is internally sealed and fixed with a liftable hydraulic top rod 8, a bottom plate of the base 1 is fixed with a hydraulic oil buffer cylinder 9, and one end of the hydraulic oil buffer cylinder 9 is communicated with the bottom of one side of the top cylinder 7 through an oil delivery pipe 12 arranged in the hydraulic top cylinder for stable buffering.
Preferably, a second spring 11 is fixed inside one end of the hydraulic oil buffer cylinder 9 far away from the oil delivery pipe 12, and an extrusion plate 10 is fixed at the other end of the second spring 11 for slowing down the pressing-in speed of the hydraulic oil.
Preferably, the inside of the sliding frame 5 is provided with a slot 13, the two ends of the steel plate 6 are welded with flat insertion plates, and the insertion plates are provided with two sliding grooves 14 for facilitating sliding.
Preferably, on the sliding frame 5, and be located two spout 14 directly over and seted up bolt hole 15, the picture peg inserts through the bolt 16 that is equipped with and fixes in bolt hole 15, is convenient for steadily slide and fix.
Preferably, the middle part of defeated oil pipe 12 is connected with high pressure resistant hose, is convenient for adjust the crookedness, avoids defeated oil pipe 12 to bend.
In this embodiment, the damping principle of coal mining machine damping device is as follows:
firstly, the damping device is arranged at the bottom of the coal mining machine or the bottom of the equipment to be used as a damping support, the steel plate 6 is fixed below the equipment, the damping device supports the equipment, and when the equipment is heavy, a plurality of damping devices can be fixed. When the device works, the generated vibration is transmitted to the steel plate 6 firstly, the steel plate 6 performs one-step cushioning by utilizing the elasticity of the steel plate 6, when the steel plate 6 is bent, the inserting plates at two ends are extruded and extend outwards, the bolt 16 plays a role in fixing and limiting, when the steel plate 6 bears the pressure, the screw rod 2 is pressed downwards, at the moment, the first spring 4 utilizes the elasticity of the steel plate to slow down the descending speed of the screw rod 2 and bear a part of cushioning force, when the vibration force is larger, the steel plate 6 descends and presses the hydraulic ejector rod 8, the hydraulic ejector rod 8 presses the hydraulic oil downwards and presses the hydraulic oil into the hydraulic oil cushioning cylinder 9, in the process that the hydraulic oil is pressed in, the second spring 11 has a good cushioning function to slow down the pressing-in speed of the hydraulic oil, the hydraulic oil is cushioned to be more stable, after one-wave impact force is cushioned, the steel plate 6, the first spring 4 and the second spring, the overall structure divides the buffering power of the coal mining machine on the steel plate 6, the first spring 4 and the hydraulic cushioning device, reduces the pressure of the single buffering device, prolongs the service life, and greatly improves the stability and the continuity of buffering.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a coal mine mining machine's damping device, includes base (1), screw rod (2) of cuboid structure, sliding frame (5) of square structure, steel sheet (6) and the hydraulic pressure bradyseism device of arc structure, its characterized in that: the screw rod (2) is connected to the two ends of the base (1) in a threaded manner, the screw rod (2) is sleeved with the inherent limiting ring (3), the steel plate (6) is fixed on the screw rod (2) in a sliding manner, the first spring (4) is sleeved below the limiting ring (3), the sliding frames (5) are welded at the top of the screw rod (2), the steel plate (6) is fixed between the two sliding frames (5) in a sliding manner, the hydraulic cushioning device is arranged below the steel plate (6) in a social manner and comprises a hydraulic top cylinder (7), a hydraulic top cylinder (8), a hydraulic oil buffer cylinder (9) and an oil conveying pipe (12), the hydraulic top cylinder (7) is fixed on the upper plate of the base (1) and is located below the center of the steel plate (6), and the hydraulic top cylinder (7) is fixed with the liftable hydraulic top cylinder (8) in an inner sealing manner, be fixed with on the bottom plate of base (1) hydraulic oil buffer cylinder (9), just the one end of hydraulic oil buffer cylinder (9) is through being equipped with defeated oil pipe (12) communicate in one side bottom of top cylinder (7).
2. The coal mining machine shock absorption device according to claim 1, characterized in that: the hydraulic oil buffer cylinder (9) is far away from the inside of one end of the oil conveying pipe (12) and is fixedly provided with a second spring (11), and the other end of the second spring (11) is fixedly provided with an extrusion plate (10).
3. The coal mining machine shock absorption device according to claim 1, characterized in that: the inside of sliding frame (5) has been seted up slot (13), the both ends welding of steel sheet (6) has smooth picture peg, just two spout (14) have been seted up on the picture peg.
4. The coal mining machine shock absorption device according to claim 3, characterized in that: on the sliding frame (5), and be located two bolt hole (15) have been seted up directly over spout (14), the picture peg inserts through bolt (16) that are equipped with fix in bolt hole (15).
5. The coal mining machine shock absorption device according to claim 1, characterized in that: the middle part of the oil delivery pipe (12) is connected with a high-pressure resistant hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020003516.2U CN211117343U (en) | 2020-01-02 | 2020-01-02 | Damping device of coal mining machine for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020003516.2U CN211117343U (en) | 2020-01-02 | 2020-01-02 | Damping device of coal mining machine for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211117343U true CN211117343U (en) | 2020-07-28 |
Family
ID=71689086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020003516.2U Expired - Fee Related CN211117343U (en) | 2020-01-02 | 2020-01-02 | Damping device of coal mining machine for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211117343U (en) |
-
2020
- 2020-01-02 CN CN202020003516.2U patent/CN211117343U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20210102 |