CN215370751U - Hydraulic buffer of coal gangue sorting device - Google Patents
Hydraulic buffer of coal gangue sorting device Download PDFInfo
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- CN215370751U CN215370751U CN202121052055.9U CN202121052055U CN215370751U CN 215370751 U CN215370751 U CN 215370751U CN 202121052055 U CN202121052055 U CN 202121052055U CN 215370751 U CN215370751 U CN 215370751U
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Abstract
The invention relates to a hydraulic buffer of a coal gangue sorting device, belonging to the field of coal gangue screening equipment. The technical scheme adopted by the invention is as follows: the buffer device comprises a buffer rod body, wherein one end of the buffer rod body is provided with a piston, the other end of the buffer rod body is provided with a guide plunger, and a first buffer spring is sleeved on the buffer rod body; the guide cylinder is internally provided with a hollow guide stroke hole, one end of the guide cylinder is provided with a guide end cover in an opening mode, a guide plunger of the buffer rod body is positioned in the guide stroke hole of the guide cylinder, the buffer rod body penetrates through an end cover hole in the guide end cover, the first buffer spring is positioned between the guide plunger and the guide end cover, and the other end of the guide cylinder is provided with a guide hinge hole; the hydraulic buffer cylinder is provided with a buffer oil cavity, and the piston of the buffer rod body is positioned in the buffer oil cavity. The invention has the advantages that: the problem of abrasion at the mechanical collision limit position in the coal gangue screening is solved; adopt hydraulic pressure and spring double buffering, reduced the atress situation of collision screening equipment at extreme position, improved the life of product.
Description
Technical Field
The invention relates to a hydraulic buffer of a coal gangue sorting device, belonging to the field of coal gangue screening equipment.
Background
Screening of coal gangue in coal is a measure for improving quality and increasing efficiency of coal mines at present. In order to effectively improve the coal combustion calorie and improve the coal quality and the price, the coal gangue screening is carried out on the mined coal.
The coal gangue screening adopts manual screening when the mechanical technology is incomplete, and has great requirements on labor and high experience requirements. However, the labor cost is high, particularly, the current labor cost is high, and the manual screening of the coal gangue is not suitable for the current coal mining cost requirement.
The mechanical screening is adopted, namely, the gangue in the coal is distinguished through a physical method and then is selected through mechanical equipment.
The current mechanical equipment screens coal gangue is through cylinder equipment with the coal gangue collision out the coal stream of high-speed flow, collision screening equipment needs the action of high frequency collision, and the big problem of extreme tip wearing and tearing that can appear in the motion after conventional screening collision equipment uses a period.
Disclosure of Invention
The invention provides a hydraulic buffer of a coal gangue sorting device, which solves the problem of damage to equipment caused by overlarge impact load in the operation of coal gangue screening equipment.
In order to achieve the purpose, the invention adopts the technical scheme that:
the hydraulic buffer of the coal gangue sorting device comprises,
the buffer rod body is provided with a piston at one end and a guide plunger at the other end, and a first buffer spring is sleeved on the buffer rod body;
the buffer rod body penetrates through an end cover hole on the guide end cover, the first buffer spring is positioned between the guide plunger and the guide end cover, and the other end of the guide cylinder is provided with a guide hinge hole;
the hydraulic buffer cylinder is provided with a buffer oil cavity, a piston of the buffer rod body is positioned in the buffer oil cavity, a hydraulic sealing end cover is arranged at the end part of the hydraulic buffer cylinder, the buffer rod body penetrates through the hydraulic sealing end cover, the side wall of the hydraulic buffer cylinder is provided with an oil duct and two oil holes which are communicated with the front position and the rear position of the buffer oil cavity, and the hydraulic buffer cylinder is provided with a buffer hinge hole at the end part of the other end.
Preferably, the package buffer rod body is further provided with a second buffer spring, the middle of the buffer rod body is provided with a protruding external spring for limiting, and the second buffer spring is located between the external spring for limiting and the guide end cover of the guide cylinder.
Preferably, the hydraulic buffer cylinder is further provided with an oil cup, the oil cup is communicated with the upper portion of the oil duct, the oil cup, the oil duct and the buffer oil cavity are filled with hydraulic oil, and the highest liquid level of the hydraulic oil is located in the oil cup.
Further preferably, the piston is located in the buffer oil chamber between the two oil holes.
Preferably, the oil duct is provided with processing holes in the outer end face and the side face of the hydraulic buffer cylinder, sealing covers are arranged at the processing holes, the buffer oil cavity is provided with an anti-collision indent in the inner end face, the piston is fixed on the end face of the buffer rod body through a bolt, and the bolt is embedded into the anti-collision indent when the end of the buffer rod body is close to the end of the buffer oil cavity.
Preferably, the buffer rod body is composed of two solid rod bodies, one end of the buffer rod body in the guide cylinder is a guide rod end, one end of the buffer rod body in the buffer oil cavity is a buffer rod end, the external spring is limited at the outer end part of the guide rod end, a connecting hole is formed in the limiting end face of the external spring and connected with the buffer rod end, and two symmetrical mounting surfaces are arranged on the limiting circumferential face of the external spring.
Preferably, the end part of the guide cylinder is fixedly provided with a guide connecting plate, the guide connecting plate is provided with the guide hinge hole, the end part of the hydraulic buffer cylinder is provided with a buffer connecting plate, and the buffer connecting plate is provided with a buffer hinge hole.
The invention has the advantages that: the problem that equipment is damaged due to overlarge impact load at the mechanical collision limit position in the coal gangue screening is solved;
adopt hydraulic pressure and spring double buffering, reduced the atress situation of collision screening equipment at extreme position, improved the life of product.
Drawings
Figure 1 is a view of the overall structure of the product,
figure 2 is a cut-away view of the present invention,
figure 3 is a side view of the present invention,
fig. 4 is a view showing a structure of a rod end of a buffer rod body according to the present invention.
Reference numerals:
1 buffer rod body 2, guide cylinder 3, hydraulic buffer cylinder 4, oil cup 101, guide rod end 102, buffer rod end 103, piston 105, first buffer spring 106, second buffer spring 107, external spring limit 108, mounting surface 201, guide stroke hole 202, guide end cover 203, guide hinge hole 204, guide connecting plate 301, buffer oil cavity 302, hydraulic seal end cover 303, oil channel 304, oil hole 305 and anti-collision concave 306 buffer hinge hole 308 of connecting plate 307.
Detailed Description
The invention is further illustrated below:
the invention relates to a hydraulic buffer of a coal gangue sorting device, which has a structure shown in figures 1-3 and comprises a buffer rod body 1, a guide cylinder 2, a hydraulic buffer cylinder 3 and an oil cup.
One end of the buffer rod body 1 is provided with a piston 104, the other end of the buffer rod body is provided with a guide plunger 103, the buffer rod body 1 is sleeved with a first buffer spring 105 and a second buffer spring, and the middle part of the buffer rod body 1 is provided with a protruding external spring limit 107.
The guide cylinder 2 is internally provided with a hollow guide stroke hole 201, one end of the guide cylinder 2 is opened and provided with a guide end cover 202, the guide plunger 103 of the buffer rod body 1 is positioned in the guide stroke hole 201 of the guide cylinder 2, the buffer rod body 1 penetrates through an end cover hole on the guide end cover 202, the first buffer spring 105 is positioned in the guide stroke hole 201 and is arranged between the guide plunger 103 and the guide end cover 202. The end of the guide cylinder 2 is fixedly provided with a guide connecting plate 204, and the guide connecting plate 204 is provided with a guide hinge hole 203. The guide hinge holes 203 are hinged and connected with the sieving swing rods of the coal gangue sieving structure through pin shafts.
The hydraulic buffer cylinder 3 is provided with a buffer oil cavity 301, the piston 104 of the buffer rod body 1 is positioned in the buffer oil cavity 301, the hydraulic buffer cylinder 3 is provided with a hydraulic sealing end cover 302 at the end part of the opening of the buffer oil cavity 301, and the buffer rod body 1 penetrates through the hydraulic sealing end cover 302. The side wall of the hydraulic buffer cylinder 3 is provided with an oil passage 303 and two oil holes 304 which communicate the front and rear positions of the buffer oil chamber 301, and the piston 104 moves in the buffer oil chamber 301 between the two oil holes 304. The end part without the opening of the hydraulic buffer cylinder 3 is provided with a buffer connecting plate which is provided with a buffer hinge hole.
The second buffer spring 106 is located between the outer spring stop 107 and the guide end cap 202 of the guide cylinder 2.
The hydraulic buffer cylinder 3 is further provided with an oil cup 4, the oil cup 4 is communicated with the upper portion of the oil passage 303, the oil cup 4, the oil passage 303 and the buffer oil cavity 301 are filled with hydraulic oil, and the highest liquid level of the hydraulic oil is located in the oil cup 4.
The oil duct 303 is provided with processing holes on the outer end surface and the side surface of the hydraulic buffer cylinder 3, sealing covers are arranged at the positions of the processing holes, the buffer oil cavity 301 is provided with an anti-collision indent 305 on the inner end surface, the piston 104 is fixed on the end surface of the buffer rod body 1 through a bolt, and the bolt is embedded into the anti-collision indent 305 when the end part of the buffer rod body 1 is close to the inner end part of the buffer oil cavity 301.
The buffer rod body 1 is composed of two solid rod bodies, and is convenient to process and capable of reducing the processing difficulty. Wherein the one end that is in guide cylinder 2 is the guide rod end 101, and the one end that is in buffer oil chamber 301 is buffer rod end 102, and the spacing 107 of outside spring is in the outer tip of guide rod end 101, and its spacing 107 terminal surface of this outside spring sets up the connecting hole and links to each other with buffer rod end 102, and the global of the spacing 107 of outside spring is equipped with the installation face of bisymmetry, facilitates the use spanner and dismantles the installation.
When the device is used and swings to the farthest position along with the sorting plate, the piston in the hydraulic buffer cylinder 3 moves towards the end cover, as shown in fig. 2, hydraulic oil enters the oil duct from the buffer oil cavity 301 on the left side of the piston through the oil hole and then enters the buffer oil cavity 301 on the right side of the piston through the oil duct, the hydraulic oil flows in the process, the movement speed of the buffer rod body can be reduced, the acceleration of the swing rod of the sorting plate at the limit movement position is reduced, and the impact force generated by the swing of the sorting plate is reduced.
Simultaneously, the first buffer spring at guide cylinder 2 is compressed when swinging motion to the farthest position along with the sorting plate, and the buffering body of rod 1 and guide cylinder 2 and hydraulic buffer cylinder 3 are in whole longest this moment, and the first buffer spring of compressed plays the function of buffering sorting plate acceleration of motion simultaneously with hydraulic buffer cylinder 3.
When the buffer rod body 1 swings to the shortest length along with the sorting plate, the piston in the hydraulic buffer cylinder 3 moves towards the inner direction, as shown in fig. 2, hydraulic oil enters the oil duct from the buffer oil cavity 301 on the right side of the piston through the oil hole and then enters the buffer oil cavity 301 on the left side of the piston through the oil duct, and the hydraulic oil flows in the process, so that the retraction movement speed of the buffer rod body can be reduced, and the speed of the sorting plate at the limit movement position is reduced. Meanwhile, a second buffer spring on the buffer rod body 1 is compressed by the guide cylinder 2, and the motion speed of the sorting plate is buffered.
The hydraulic buffer device adopts double buffering of hydraulic pressure and a spring, reduces the stress condition of equipment at the limit position, and prolongs the service life of a product.
Claims (7)
1. A hydraulic buffer of a coal gangue sorting device is characterized by comprising,
the device comprises a buffer rod body (1), wherein one end of the buffer rod body (1) is provided with a piston (104), and the other end of the buffer rod body is provided with a guide plunger (103);
the buffer rod body structure comprises a guide cylinder (2), wherein a hollow guide stroke hole (201) is formed in the guide cylinder (2), a guide end cover (202) is arranged at an opening at one end of the guide cylinder (2), a guide plunger (103) of the buffer rod body (1) is positioned in the guide stroke hole (201) of the guide cylinder (2), the buffer rod body (1) penetrates through an end cover hole in the guide end cover (202), and a guide hinge hole (203) is formed in the other end of the guide cylinder (2);
hydraulic cushion cylinder (3), hydraulic cushion cylinder (3) are equipped with buffer oil cavity (301), piston (104) of the buffer rod body (1) are in buffer oil cavity (301), and hydraulic seal end cover (302) are established at the tip in hydraulic cushion cylinder (3), and hydraulic seal end cover (302) are passed in buffer rod body (1), and the lateral wall of hydraulic cushion cylinder (3) is equipped with oil duct (303) and two oilholes (304) that communicate buffer oil cavity (301) front and back position, and hydraulic cushion cylinder (3) are equipped with the buffering hinge hole at other end tip.
2. The hydraulic buffer of the coal gangue sorting device as claimed in claim 1, wherein a first buffer spring (105) and a second buffer spring (106) are sleeved on the buffer rod body (1), the first buffer spring (105) is positioned between the guide plunger (103) and the guide end cap (202), a protruding outer spring limit (107) is arranged in the middle of the buffer rod body (1), and the second buffer spring (106) is positioned between the outer spring limit (107) and the guide end cap (202) of the guide cylinder (2).
3. The hydraulic buffer of the coal gangue sorting device as defined in claim 1, wherein the hydraulic buffer cylinder (3) is further provided with an oil cup (4), the oil cup (4) is communicated with the upper part of the oil passage (303), the oil cup (4), the oil passage (303) and the buffer oil cavity (301) are filled with hydraulic oil, and the highest liquid level of the hydraulic oil is located in the oil cup (4).
4. The hydraulic buffer of the coal gangue sorting device as defined in claim 1, wherein the piston (104) moves in the buffer oil chamber (301) between the two oil holes (304).
5. The hydraulic buffer of the coal gangue sorting device as defined in claim 1, wherein the oil passage (303) is provided with a processing hole at an outer end surface and a side surface of the hydraulic buffer cylinder (3), a sealing cover is provided at the processing hole, the buffer oil chamber (301) is provided with an anti-collision indent (305) at an inner end surface, the piston (104) is fixed to an end surface of the buffer rod body (1) by a bolt, and the bolt is embedded in the anti-collision indent (305) when the end of the buffer rod body (1) is close to the inner end of the buffer oil chamber (301).
6. The hydraulic buffer of the coal gangue sorting device as defined in claim 2, wherein the buffer rod body (1) is composed of two solid rod bodies, one end of the buffer rod body in the guide cylinder (2) is a guide rod end (101), one end of the buffer rod body in the buffer oil cavity (301) is a buffer rod end (102), the external spring limit (107) is arranged at the outer end of the guide rod end (101), the end surface of the external spring limit (107) is provided with a connecting hole connected with the buffer rod end (102), and the peripheral surface of the external spring limit (107) is provided with two symmetrical mounting surfaces.
7. The hydraulic buffer of the coal gangue sorting device as defined in claim 1, wherein the end of the guide cylinder (2) is fixedly provided with a guide connecting plate (204), the guide connecting plate (204) is provided with the guide hinge hole (203), the end of the hydraulic buffer cylinder (3) is provided with a buffer connecting plate, and the buffer connecting plate is provided with a buffer hinge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121052055.9U CN215370751U (en) | 2021-05-17 | 2021-05-17 | Hydraulic buffer of coal gangue sorting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121052055.9U CN215370751U (en) | 2021-05-17 | 2021-05-17 | Hydraulic buffer of coal gangue sorting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215370751U true CN215370751U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121052055.9U Active CN215370751U (en) | 2021-05-17 | 2021-05-17 | Hydraulic buffer of coal gangue sorting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215370751U (en) |
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2021
- 2021-05-17 CN CN202121052055.9U patent/CN215370751U/en active Active
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