CN218991639U

CN218991639U - Double-telescopic upright post for thin coal seam hydraulic support

Info

Publication number: CN218991639U
Application number: CN202222795472.3U
Authority: CN
Inventors: 化志; 张帅; 仝灼金
Original assignee: Henan Coal Mine Machinery Co ltd
Current assignee: Henan Coal Mine Machinery Co ltd
Priority date: 2022-10-23
Filing date: 2022-10-23
Publication date: 2023-05-09
Anticipated expiration: 2032-10-23

Abstract

The utility model discloses a double-telescopic stand column for a thin coal seam hydraulic support, which relates to the technical field of double-telescopic stand columns and comprises a primary cylinder body, wherein the lower surface of the primary cylinder body is fixedly connected with a connecting flange, the upper surface of the primary cylinder body is movably connected with a secondary cylinder body, the upper surface of the primary cylinder body is fixedly connected with a lower fixed block, the outer surface of the upper end of the secondary cylinder body is fixedly connected with an upper fixed block, the outer surface of the lower fixed block is detachably connected with a lower connecting sleeve, the inside of the lower connecting sleeve is slidably connected with a dustproof baffle, the outer surface of the upper fixed block is detachably connected with an upper connecting sleeve, the inside of the upper connecting sleeve is movably connected with a dustproof baffle, the upper surface of the secondary cylinder body is movably connected with a piston rod, and the upper surface of the piston rod is provided with a connecting bearing.

Description

Double-telescopic upright post for thin coal seam hydraulic support

Technical Field

The utility model relates to the technical field of double telescopic upright posts, in particular to a double telescopic upright post for a thin coal seam hydraulic support.

Background

The coal seam is a thin coal seam, and the resources are widely distributed, but due to the fact that the coal seam is thin, the working space is small, the exploitation efficiency is low, the industrial concentration is low, the safety condition is poor, the economic benefit is low, and a large amount of thin coal seam coal resources are in a rest state. The key to high-yield and high-efficiency mining of the thin coal seam is to improve the mechanization level of the thin coal seam, wherein a hydraulic support of the thin coal seam is an important device for supporting the working surface of the thin coal seam.

At present, the existing double-telescopic stand column for the thin coal seam hydraulic support has the defects that the sealing effect of the telescopic joint is poor, dust in the working environment is more, the dust in the air enters the telescopic device, the service life of the double-telescopic stand column is further influenced, and the protection effect of the existing double-telescopic stand column is poor.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a double telescopic upright post for a thin coal seam hydraulic support, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a thin coal seam hydraulic support is with two flexible stands, includes the one-level cylinder body, the lower fixed surface of one-level cylinder body is connected with flange, the last surface swing joint of one-level cylinder body has the second grade cylinder body, the last fixed block of last fixed surface fixedly connected with of one-level cylinder body, the fixed block is gone up to the surface fixedly connected with of second grade cylinder body upper end, the surface of fixed block can be dismantled and be connected with down the connecting sleeve down, connecting sleeve's inside sliding connection has dustproof baffle down, connecting sleeve can be dismantled to the surface of going up the fixed block and be connected with last connecting sleeve, go up connecting sleeve's inside swing joint has dustproof baffle, the last surface swing joint of second grade cylinder body has the piston rod, the last surface mounting of piston rod has connecting bearing.

Optionally, the surface that lower fixed block is located one-level cylinder body and second grade cylinder body junction, the recess has been seted up to the side of lower fixed block, recess surface sliding connection has the fixture block, the internal surface fixedly connected with spring of recess, the other end fixedly connected with fixture block of spring, the fixture block is unanimous with the size in fixture block groove.

Optionally, a chute is provided on the surface of the upper fixing block, a wedge is fixedly connected to the inner side of the upper connecting sleeve, and the chute is wedged with the wedge.

Optionally, the quantity of recess, spring and fixture block is six, and circumference array distributes in the surface of fixed block down, chute and last fixed block's quantity is six, and circumference array distributes in the surface of fixed block.

Optionally, the first cavity has been seted up to lower connecting sleeve's inside, logical groove has been seted up to connecting sleeve's upper surface down, connecting sleeve's upper surface is provided with sealed pad, be located the swing joint department of leading to groove and dustproof baffle, the surface swing joint who leads to the groove has dustproof baffle, connecting sleeve's lower surface has been seted up the groove down, fixture block groove has been seted up to the side in groove, the first extension spring of inner bottom fixedly connected with of first cavity, the other end and the dustproof baffle lower surface fixed connection of first extension spring, the equal fixedly connected with dog in both ends about the dustproof baffle.

Optionally, the second cavity has been seted up to go up connecting sleeve's inside, the interior roof fixedly connected with second extension spring of second cavity, the other end and the upper surface fixed connection of dustproof baffle of second extension spring.

Optionally, the number of first extension spring and second extension spring is six, and evenly distributed is at dustproof baffle's upper and lower surface.

Optionally, the surface of piston rod is provided with second grade dust keeper, second grade dust keeper dustproof principle is the same with the dust keeper that second grade cylinder body surface set up.

(III) beneficial effects

The utility model provides a double telescopic upright post for a thin coal seam hydraulic support, which has the following beneficial effects:

1. this two flexible stands, through dustproof baffle and second dust keeper's setting, make this two flexible stands possess the effect that prevents that the dust from getting into flexible stand, in the use, when second grade cylinder body and piston rod outwards extend, second grade cylinder body upwards moves the in-process and drives fixed block upwards and move, and then make the dustproof baffle that is located the second cavity inside outwards remove, be located the synchronous outwards removal of the inside dustproof baffle of first cavity simultaneously, the in-process of removal, continuous tensile first extension spring and second extension spring, through the setting of first extension spring and second extension spring, make dustproof baffle can freely stretch out and draw back, in the use, dustproof baffle is located the surface of second grade cylinder body always, the same second dust keeper possesses the same effect, isolated outside dust gets into the effect in the flexible stand, dustproof purpose has been reached.

2. This two flexible stands, through the setting of last fixed block and lower fixed block, make this two flexible stands possess convenient to detach dust keeper's effect, during the installation, lower connecting sleeve, dust baffle be an entity, with this whole cover to the second grade cylinder body, remove the back to relevant position, align voussoir and chute, rotate connecting sleeve along the chute, and then make voussoir and chute wedge mutually, the in-process that removes simultaneously, lower connecting sleeve lower surface L type groove aligns with lower fixed block, fixture block and fixture block groove chucking, the purpose of quick installation dust keeper has been reached, when need wasing dust keeper, only need rotate dust keeper with effort, make the fixture block break away from the fixture block groove, the voussoir breaks away from the chute can take off dust keeper, the purpose of convenient installation has been reached.

3. This two flexible stands, through sealed setting up of filling up, make this two flexible stands possess and reduced the inside effect of dust entering dust keeper, through sealed setting up of filling up, make dustproof baffle when first cavity and second cavity remove, keep apart most dust, reached the purpose that has reduced the dust and got into in first cavity and the second cavity.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the internal perspective structure of the present utility model;

FIG. 3 is a schematic view of a lower block of the present utility model;

FIG. 4 is a schematic view of the structure of the upper fixing block of the present utility model;

FIG. 5 is a schematic view of the present utility model in elevation and cross section;

fig. 6 is a schematic diagram of the structure of fig. 5 a according to the present utility model.

In the figure: 1. a primary cylinder; 101. a connecting flange; 2. a secondary cylinder; 3. a piston rod; 4. connecting a bearing; 5. a lower fixing block; 6. a groove; 7. a spring; 8. a clamping block; 9. an upper fixing block; 10. a chute; 11. a lower connecting sleeve; 111. an L-shaped groove; 112. a clamping block groove; 12. a first cavity; 13. a first extension spring; 14. a through groove; 15. a dust-proof baffle; 151. a stop block; 16. an upper connecting sleeve; 17. a second cavity; 18. a second tension spring; 19. wedge blocks; 20. a secondary dust-proof device; 21. and a sealing gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1 to 4, the present utility model provides the following technical solutions: the utility model provides a thin coal seam hydraulic support is with two flexible stands, including one-level cylinder body 1, the lower fixed surface of one-level cylinder body 1 is connected with flange 101, the upper surface swing joint of one-level cylinder body 1 has second grade cylinder body 2, the upper surface fixedly connected with of one-level cylinder body 1 down fixed block 5, the surface that lower fixed block 5 is located one-level cylinder body 1 and second grade cylinder body 2 junction is the surface, recess 6 has been seted up to the side of lower fixed block 5, recess 6 surface sliding connection has fixture block 8, the internal surface fixedly connected with spring 7 of recess 6, the other end fixedly connected with fixture block 8 of spring 7, the size of fixture block 8 and fixture block groove 112 is unanimous, the surface fixedly connected with of second grade cylinder body 2 upper end goes up fixed block 9, chute 10 has been seted up on the surface of fixed block 9, the inboard fixedly connected with voussoir 19 of last connecting sleeve 16,

chute

10 and 19 wedge, the surface detachably of lower fixed block 5 is connected with down connecting sleeve 11, the quantity of recess 6, spring 7 and fixture block 8 is six, and the quantity of circumference array distributes at the surface of fixed block 5 down, the quantity of chute 10 and last fixed block 9 is six and circumference array is the surface of circumference array of circumference 9.

When the anti-dust device is used, the lower connecting sleeve 11 and the anti-dust baffle 15 are integrated, the integrated cylinder body 2 is sleeved with the integrated cylinder body, after the anti-dust device is moved to the corresponding position, the wedge block 19 is aligned with the chute 10, the upper connecting sleeve 16 is rotated along the chute 10, the wedge block 19 is wedged with the chute 10, meanwhile, in the moving process, the L-shaped groove 111 on the lower surface of the lower connecting sleeve 11 is aligned with the lower fixed block 5, the clamping block 8 is clamped with the clamping block groove 112, the aim of quickly installing the anti-dust device is fulfilled, and when the anti-dust device is required to be cleaned, the anti-dust device can be taken down by only rotating the anti-dust device forcedly, so that the clamping block 8 is separated from the clamping block groove 112 and the wedge block 19 is separated from the chute 10, and the aim of facilitating installation is fulfilled.

Example 2

Referring to fig. 5 to 6, the present utility model provides the following technical solutions: the inside sliding connection of lower connecting sleeve 11 has dustproof baffle 15, first cavity 12 has been seted up to the inside of connecting sleeve 11 down, logical groove 14 has been seted up to the upper surface of connecting sleeve 11 down, the upper surface of connecting sleeve 11 is provided with sealed 21, 21 are located logical groove 14 and dustproof baffle 15's swing joint department, the surface swing joint of logical groove 14 has dustproof baffle 15, L type groove 111 has been seted up to the lower surface of connecting sleeve 11 down, fixture block groove 112 has been seted up to the side of L type groove 111, the first extension spring 13 of bottom fixedly connected with in first cavity 12, the other end and the dustproof baffle 15 lower surface fixed connection of first extension spring 13, the equal fixedly connected with dog 151 in upper and lower both ends of dustproof baffle 15, the surface detachable connection of upper fixed block 9 has last connecting sleeve 16, the second cavity 17 has been seted up to the inside of upper connecting sleeve 16, the inside roof fixedly connected with second extension spring 18 of second cavity 17, the other end and the last surface fixedly connected with dustproof baffle 15 of dustproof baffle 16, the inside swing joint of upper connecting sleeve 16 has dustproof baffle 15, the last surface 3 of second cylinder body 2 is connected with the upper surface of the same cylinder body 3, the equal device of the second cylinder body 3, the same number of the equal and the dustproof device of second cylinder body 3 is arranged at the second piston rod 20, the same with the dustproof device of the second piston rod 20.

When the anti-dust device is used, when the secondary cylinder body 2 and the piston rod 3 stretch outwards, the secondary cylinder body 2 drives the upper fixing block 9 to move upwards in the upward moving process, and then the dustproof baffle 15 positioned in the second cavity 17 moves outwards, meanwhile, the dustproof baffle 15 positioned in the first cavity 12 moves outwards synchronously, in the moving process, the first extension spring 13 and the second extension spring 18 are continuously stretched, the dustproof baffle 15 can freely stretch out and draw back through the arrangement of the first extension spring 13 and the second extension spring 18, in the using process, the dustproof baffle 15 is always positioned on the outer surface of the secondary cylinder body 2, the same effect as that of the secondary dustproof device 20 is achieved, the effect of isolating external dust from entering the telescopic upright column is achieved, the dustproof purpose is achieved, and most dust is isolated when the dustproof baffle 15 moves in the first cavity 12 and the second cavity 17 through the arrangement of the sealing gasket 21, and the purpose of reducing the dust from entering the first cavity 12 and the second cavity 17 is achieved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a thin coal seam hydraulic support is with two flexible stands, includes one-level cylinder body (1), its characterized in that: the utility model discloses a cylinder body, including first-level cylinder body (1), lower fixed surface connection flange (101) of first-level cylinder body (1), upper surface swing joint of first-level cylinder body (1) has second grade cylinder body (2), upper surface fixedly connected with down fixed block (5) of first-level cylinder body (1), the surface fixedly connected with of second grade cylinder body (2) upper end goes up fixed block (9), the surface of lower fixed block (5) can be dismantled and be connected with down connecting sleeve (11), the inside sliding connection of connecting sleeve (11) has dust baffle (15), the surface of last fixed block (9) can be dismantled and be connected with last connecting sleeve (16), the inside swing joint of last connecting sleeve (16) has dust baffle (15), the upper surface swing joint of second grade cylinder body (2) has piston rod (3), the last surface mounting of piston rod (3) has connecting bearing (4).

2. The dual telescopic column for a thin seam hydraulic support of claim 1, wherein: the utility model discloses a cylinder body, including lower fixed block (5), clamping block (8), spring (7) are connected with in the internal surface fixedly connected with of recess (6), other end fixedly connected with fixture block (8) of spring (7), the size of fixture block (8) and fixture block groove (112) is unanimous, lower fixed block (5) are located the surface of one-level cylinder body (1) and second grade cylinder body (2) junction, recess (6) are seted up to the side of lower fixed block (5).

3. The dual telescopic column for a thin seam hydraulic support according to claim 2, wherein: the surface of the upper fixing block (9) is provided with a chute (10), the inner side of the upper connecting sleeve (16) is fixedly connected with a wedge block (19), and the chute (10) is wedged with the wedge block (19).

4. A dual telescopic column for a thin seam hydraulic prop according to claim 3, wherein: the number of grooves (6), springs (7) and clamping blocks (8) is six, the circumferential arrays are distributed on the outer surface of the lower fixing block (5), the number of the inclined grooves (10) and the number of the upper fixing block (9) are six, and the circumferential arrays are distributed on the outer surface of the upper fixing block (9).

5. The dual telescopic column for a thin seam hydraulic support of claim 1, wherein: the inside of lower connecting sleeve (11) has been seted up first cavity (12), logical groove (14) have been seted up to the upper surface of lower connecting sleeve (11), the upper surface of connecting sleeve (11) is provided with sealed pad (21), 21 are located the swing joint department of leading to groove (14) and dustproof baffle (15), the surface swing joint of leading to groove (14) has dustproof baffle (15), L type groove (111) have been seted up to the lower surface of lower connecting sleeve (11), fixture block groove (112) have been seted up to the side of L type groove (111), the interior bottom fixedly connected with first extension spring (13) of first cavity (12), the other end and dustproof baffle (15) lower surface fixedly connected with of first extension spring (13), the equal fixedly connected with dog (151) in upper and lower both ends of dustproof baffle (15).

6. The dual telescopic column for a thin seam hydraulic support of claim 1, wherein: the inside of going up connecting sleeve (16) has seted up second cavity (17), the interior roof fixedly connected with second extension spring (18) of second cavity (17), the other end and the upper surface fixed connection of dustproof baffle (15) of second extension spring (18).

7. The dual telescopic column for a thin seam hydraulic support of claim 5, wherein: the number of the first extension springs (13) and the second extension springs (18) is six, and the first extension springs and the second extension springs are uniformly distributed on the upper surface and the lower surface of the dustproof baffle plate (15).

8. The dual telescopic column for a thin seam hydraulic support of claim 1, wherein: the outer surface of the piston rod (3) is provided with a secondary dustproof device (20), and the dustproof principle of the secondary dustproof device (20) is the same as that of the outer surface of the secondary cylinder body (2).