CN215761749U - Split type bottom lifting device for hydraulic support moving frame - Google Patents
Split type bottom lifting device for hydraulic support moving frame Download PDFInfo
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- CN215761749U CN215761749U CN202122476293.9U CN202122476293U CN215761749U CN 215761749 U CN215761749 U CN 215761749U CN 202122476293 U CN202122476293 U CN 202122476293U CN 215761749 U CN215761749 U CN 215761749U
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- hydraulic support
- bottom lifting
- support base
- jack
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Abstract
The utility model provides a split type bottom lifting device for a hydraulic support moving frame, which relates to the technical field of mining machinery and comprises a hydraulic support base, wherein a bottom lifting jack is arranged at an opening at the front end of the hydraulic support base, the upper end of the bottom lifting jack is hinged with the hydraulic support base, the bottom end of the bottom lifting jack is hinged with a push rod, limiting plates are respectively arranged on two sides of the bottom lifting jack, a wear-resistant sleeve is sleeved on the outer surface of the bottom lifting jack, and when the front end of the hydraulic support base is lifted, the cylindrical surface of the wear-resistant sleeve generates friction with the limiting plates on the two sides of the wear-resistant sleeve; when lifting the piston rod upward movement of end jack, lift end jack and wear-resisting cover and can take place to rotate for the pushing rod, make the both sides of wear-resisting cover take place to rub with two limiting plates respectively, effectively avoid hydraulic support base to take place to rock the problem that influences the hydraulic support use.
Description
Technical Field
The utility model relates to the technical field of mining machinery, in particular to a split type bottom lifting device for a hydraulic support moving frame.
Background
The hydraulic support is a structure used for controlling the mine pressure of the coal face. The mining face mine pressure acts on the hydraulic support in the form of external load. In a mechanical system of interaction of a hydraulic support and mining face surrounding rock, if the resultant force of all supporting pieces of the hydraulic support and the resultant force of external loading of a top plate acting on the hydraulic support are exactly in the same straight line, the hydraulic support is very suitable for the mining face surrounding rock, and in order to solve the problem of bottom pricking at the front end of the support caused by insufficient pressure resistance of a bottom plate, a bottom lifting device is needed.
In the prior art, a piston rod of the bottom lifting jack is usually hinged to a hydraulic support base through a pin shaft, when the hydraulic support base is lifted for many times, the pin shaft is easily worn and torn for a long time, the size of a shaft hole changes, and the hydraulic support base is easily shaken when the hydraulic support base is lifted for the bottom again, so that great influence is caused on the use of the hydraulic support.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a split type bottom lifting device for a hydraulic support moving frame, and aims to solve the problem that in the prior art, a base of a hydraulic support is easy to shake in the bottom lifting process to influence the use of the hydraulic support.
In order to achieve the purpose, the utility model adopts the following technical scheme: the split type bottom lifting device for the hydraulic support moving frame comprises a hydraulic support base, wherein a bottom lifting jack is arranged at the front end opening of the hydraulic support base, the upper end of the bottom lifting jack is hinged to the hydraulic support base, a pushing rod is hinged to the bottom end of the bottom lifting jack, limiting plates are arranged on two sides of the bottom lifting jack respectively, a wear-resistant sleeve is sleeved on the outer surface of the bottom lifting jack, and when the front end of the hydraulic support base is lifted, the cylindrical surface of the wear-resistant sleeve is in friction with the limiting plates on two sides of the wear-resistant sleeve.
According to a further technical scheme, the hydraulic support base comprises support bodies arranged on two sides of the bottom lifting jack and a plurality of connecting assemblies used for connecting the two support bodies.
According to a further technical scheme, the connecting assembly is a connecting rod fixedly connected between the two frame bodies.
In order to enable the hydraulic support base to have the effect of separating the limiting plates from the wear-resistant sleeves, the hydraulic support base further has the technical scheme that the opposite outer sides of the two limiting plates are respectively and fixedly connected with a supporting rod, a through hole which is coincident with the axis of the supporting rod is formed in the hydraulic support base, the supporting rod penetrates through the through hole and is fixedly connected with a fixing disc, and the fixing disc is detachably connected with the hydraulic support base.
In order to enable the hydraulic support frame to have the effect of being convenient to maintain, the hydraulic support frame has the further technical scheme that the fixed disc is connected with the hydraulic support frame base through locking bolts, and grooves for containing the limiting plates are respectively formed in the opposite inner sides of the two frame bodies.
According to a further technical scheme, a space is reserved between the frame body and the limiting plate so that the supporting rod can slide along the axial direction of the through hole.
According to a further technical scheme, a hollow plate is arranged at the top of each fixed plate, and the hollow plate is connected with a clamping plate in a sliding mode in the vertical direction.
The utility model has the further technical scheme that the upper end of the bottom lifting jack is hinged with the hydraulic support base through a rotating shaft.
The utility model has the beneficial effects that:
1. when lifting the piston rod upward movement of end jack, lift end jack and wear-resisting cover and can take place to rotate for the pushing rod, make the both sides of wear-resisting cover take place to rub with two limiting plates respectively, wear-resisting cover can avoid lifting end jack and take place wearing and tearing, improves the life who lifts end jack, and the limiting plate is spacing to the wear-resisting cover in order to restrict to lift rocking of end jack, effectively avoids the hydraulic support base to take place to rock the problem that influences the hydraulic support use.
2. Through dismantling the locking bolt, make the bracing piece slide along through-hole axis direction to the limiting plate breaks away from wear-resisting cover and accomodates to the inside of recess, increases the maintenance space, and the staff of being convenient for is to lifting the maintenance work of end jack.
3. The clamping plate can be clamped into the space between the fixed disc and the frame body, and the limiting plate is prevented from being separated from the groove in the overhauling process.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic perspective view of the frame body of the present invention;
FIG. 5 is a schematic cross-sectional view of the frame of the present invention;
FIG. 6 is a schematic view showing the structure of the present invention in a state where the hollow plate and the chucking plate are separated from each other.
In the figure: 1. a hydraulic support base; 101. a frame body; 102. a connecting assembly; 2. lifting a bottom jack; 3. a push rod; 4. a limiting plate; 5. a wear-resistant sleeve; 6. a support bar; 7. fixing the disc; 8. locking the bolt; 9. a hollow plate; 10. clamping a plate; 11. a rotating shaft.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-6, a split type bottom lifting device for a hydraulic support moving frame comprises a hydraulic support base 1, wherein a bottom lifting jack 2 is arranged at an opening at the front end of the hydraulic support base 1, the upper end of the bottom lifting jack 2 is hinged to the hydraulic support base 1, a pushing rod 3 is hinged to the bottom end of the bottom lifting jack 2, two sides of the bottom lifting jack 2 are respectively provided with a limiting plate 4, a wear-resistant sleeve 5 is sleeved on the outer surface of the bottom lifting jack 2, and when the front end of the hydraulic support base 1 is lifted, the cylindrical surface of the wear-resistant sleeve 5 and the limiting plates 4 on the two sides of the wear-resistant sleeve generate friction.
In this embodiment, when lifting jack 2's piston rod upward movement, lift jack 2 and wear-resisting cover 5 and can take place to rotate for pushing rod 3, make wear-resisting cover 5's both sides take place the friction with two limiting plates 4 respectively, wear-resisting cover 5 can avoid lifting jack 2 and take place wearing and tearing, improve and lift jack 2's life, and limiting plate 4 is spacing to wear-resisting cover 5 and lifts rocking of jack 2 in order to restrict, effectively avoid hydraulic support base 1 to take place to rock the problem that the influence hydraulic support used.
In another embodiment of the present invention, the hydraulic support base 1 includes a frame body 101 disposed at both sides of the lifting jack 2 and a plurality of connection assemblies 102 for connecting the two frame bodies 101.
Specifically, the connecting assembly 102 is a connecting rod fixedly connected between the two frame bodies 101.
Specifically, the relative outside of two limiting plates 4 is fixedly connected with bracing piece 6 respectively, sets up the through-hole with 6 axis coincidences of bracing piece on the hydraulic support base 1, and bracing piece 6 passes through-hole and fixedly connected with fixed disk 7, and fixed disk 7 can be dismantled with hydraulic support base 1 and be connected.
Specifically, the fixed disk 7 is connected with the hydraulic support base 1 through the locking bolt 8, and grooves for accommodating the limiting plates 4 are respectively formed in the opposite inner sides of the two support bodies 101.
Specifically, leave the interval between support body 101 and the limiting plate 4 so that bracing piece 6 can follow the through-hole axis direction and slide, through dismantling locking bolt 8, make bracing piece 6 slide along through-hole axis direction to limiting plate 4 breaks away from wear-resisting cover 5 and accomodates to the inside of recess, increases the maintenance space, and the staff of being convenient for is to lifting the maintenance work of end jack 2.
Specifically, the top of every fixed disk 7 all is provided with well hollow plate 9, and well hollow plate 9 has cardboard 10 along sliding connection on the vertical direction, accomodates to the inside back of recess when limiting plate 4, forms the interval between fixed disk 7 and the support body 101, makes cardboard 10 can block into to the interval between fixed disk 7 and the support body 101 in, avoids examining and repairing the in-process, and limiting plate 4 breaks away from the recess.
Specifically, the upper end of the bottom lifting jack 2 is hinged with the hydraulic support base 1 through a rotating shaft 11.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a split type end device that lifts for hydraulic support moves frame, includes hydraulic support base (1), the front end opening part of hydraulic support base (1) is provided with lifts end jack (2), lift the upper end of end jack (2) and be connected its characterized in that with hydraulic support base (1) articulated: the bottom end of the bottom lifting jack (2) is hinged with a pushing rod (3), limiting plates (4) are arranged on two sides of the bottom lifting jack (2) respectively, a wear-resistant sleeve (5) is sleeved on the outer surface of the bottom lifting jack (2), and when the front end of the hydraulic support base (1) is lifted, the cylindrical surface of the wear-resistant sleeve (5) and the limiting plates (4) on two sides of the wear-resistant sleeve generate friction.
2. The split type bottom lifting device for hydraulic support moving frame according to claim 1 is characterized in that the hydraulic support base (1) comprises frame bodies (101) arranged on two sides of the bottom lifting jack (2) and a plurality of connecting assemblies (102) used for connecting the two frame bodies (101).
3. The split type bottom lifting device for hydraulic support moving frame according to claim 2 is characterized in that the connecting assembly (102) is a connecting rod fixedly connected between the two frame bodies (101).
4. The split type bottom lifting device for the hydraulic support moving frame is characterized in that two opposite outer sides of the limiting plates (4) are respectively and fixedly connected with supporting rods (6), a through hole coincident with the axis of the supporting rods (6) is formed in the hydraulic support base (1), the supporting rods (6) penetrate through the through hole and are fixedly connected with fixing discs (7), and the fixing discs (7) are detachably connected with the hydraulic support base (1).
5. The split type bottom lifting device for the hydraulic support moving frame is characterized in that the fixed disc (7) is connected with the hydraulic support base (1) through a locking bolt (8), and grooves for containing the limiting plates (4) are formed in the opposite inner sides of the two frame bodies (101) respectively.
6. The split type bottom lifting device for the hydraulic support moving frame is characterized in that a space is reserved between the frame body (101) and the limiting plate (4) so that the supporting rod (6) can slide along the axial direction of the through hole.
7. The split type bottom lifting device for the hydraulic support moving frame is characterized in that a hollow plate (9) is arranged at the top of each fixed plate (7), and a clamping plate (10) is slidably connected to the hollow plate (9) in the vertical direction.
8. The split type bottom lifting device for hydraulic support moving frame according to any one of claims 1 to 7, characterized in that the upper end of the bottom lifting jack (2) is hinged with the hydraulic support base (1) through a rotating shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122476293.9U CN215761749U (en) | 2021-10-14 | 2021-10-14 | Split type bottom lifting device for hydraulic support moving frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122476293.9U CN215761749U (en) | 2021-10-14 | 2021-10-14 | Split type bottom lifting device for hydraulic support moving frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215761749U true CN215761749U (en) | 2022-02-08 |
Family
ID=80095706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122476293.9U Active CN215761749U (en) | 2021-10-14 | 2021-10-14 | Split type bottom lifting device for hydraulic support moving frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215761749U (en) |
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2021
- 2021-10-14 CN CN202122476293.9U patent/CN215761749U/en active Active
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