A quick-change mechanism for an advanced hydraulic support base and an advanced hydraulic support

Abstract

The present invention discloses a quick-change mechanism of an advanced hydraulic support base and an advanced hydraulic support base, wherein the quick-change mechanism comprises a movable connecting piece and an elastic locking mechanism; when the movable connecting piece reaches a locking position, the elastic locking mechanism can fix the movable connecting piece on the base, so that the movable connecting piece is connected to the frame shifting jack through a connecting joint, thereby enabling the advanced hydraulic support to be used as an air lane advanced support. When the elastic locking mechanism releases the locking of the movable connecting piece, the movable connecting piece can be separated from the base, and after the elastic locking mechanism is removed from the base, the advanced hydraulic support can be used as a base lane advanced support, thereby avoiding the problem of easy confusion and error in the design and production process of the two advanced supports, reducing the workload and improving the yield rate; and the assembly is simple, reducing the assembly cycle and the assembly amount.

Description

Technical Field

[0001] The invention relates to the technical field of advanced support for fully mechanized working faces in underground coal mines, and in particular to a quick-change mechanism for an advanced hydraulic support base and an advanced hydraulic support. Background Art

[0002] At present, when coal is mined by fully mechanized mining technology, it is necessary to support the transport tunnel and the return air tunnel separately. Usually, the advanced support bracket is used to support the roof of the tunnel to provide a safe production environment for coal mining.

[0003] In actual production, advance brackets are divided into base tunnel advance brackets and air tunnel advance brackets according to their types. Equipment such as transfer machines need to be placed in the middle of the left and right bases of the machine tunnel advance bracket, and there is no space to install the adjustment jack. However, there is no need to place equipment such as transfer machines in the middle of the left and right bases of the air tunnel advance bracket, and there is space to install the adjustment jack. It can be seen that the main structural parts of the base tunnel advance bracket and the air tunnel advance bracket are only partially different. In this way, confusion and errors are easy to occur during the design and production process of the two advance brackets, which not only increases the workload but also reduces the yield rate; and it is not easy to distinguish between the two advance brackets during assembly, which makes the assembly process cumbersome and complicated, resulting in increased assembly workload and extended assembly cycle. Summary of the invention

[0004] The purpose of the present invention is to provide a quick-change mechanism for an advanced hydraulic support base and an advanced hydraulic support, and the main purpose is to solve at least one technical problem in the above prior art.

[0005] In a first aspect, according to an embodiment of the present invention, a quick-change mechanism of an advanced hydraulic support base is provided, comprising a movable connecting member and an elastic locking mechanism; the elastic locking mechanism is detachably connected to a base of the advanced hydraulic support base;

[0006] When the movable connecting piece reaches the locking position, the elastic locking mechanism can fix the movable connecting piece on the base so that the movable connecting piece is connected to the frame shifting jack through the connecting joint; when the elastic locking mechanism releases the lock on the movable connecting piece, the movable connecting piece can be separated from the base.

[0007] Specifically, the elastic locking mechanism includes a limiter, a latch and an elastic member;

[0008] The limiting member is detachably connected to the base, the latch extends into the limiting member, a step surface is provided on the latch, and the elastic member abuts between the step surface and the limiting member;

[0009] A slide rail is provided in the base, an opening is provided on the base corresponding to the slide rail, the movable connecting member can slide in the slide rail through the opening, and through holes are provided on the slide rail and the movable connecting member;

[0010] When the movable connecting member slides to an unlocking position in the slide rail, the elastic member can push the latch to pass through the through holes of the slide rail and the movable connecting member in sequence; when the latch moves in a direction away from the movable connecting member, the latch disengages from the through holes of the slide rail and the movable connecting member, so that the movable connecting member slides out of the slide rail.

[0011] Specifically, the position-limiting member includes a flange sleeve and a bushing, a circular hole is opened on the base at a position corresponding to the through hole of the slide rail, and the outer edge of the flange sleeve is detachably connected to the edge of the circular hole;

[0012] The bushing is located in the flange sleeve, the bushing and the flange sleeve are interference fit, and a fixing piece is penetrated through the outer peripheral wall of the flange sleeve to lock the bushing.

[0013] Specifically, an end cover is provided at the outer edge of one end of the latch away from the movable connecting piece.

[0014] Specifically, a pull ring is provided at one end of the latch away from the movable connecting piece.

[0015] Specifically, a chamfer is provided at a corner where the movable connecting piece extends into one end of the slide rail.

[0016] In the second aspect, according to an embodiment of the present invention, an advance hydraulic support is provided, comprising two base pairs arranged from top to bottom, each of the base pairs comprising two bases arranged opposite to each other, each of the bases being provided with a circular hole for connecting an elastic locking mechanism of a quick-change mechanism of the above-mentioned advance hydraulic support base, and a slide rail for sliding the movable connecting part of the quick-change mechanism of the above-mentioned advance hydraulic support base, and an opening being provided on the portion of the base corresponding to the slide rail.

[0017] Specifically, the edge of the circular hole is detachably connected to the elastic locking mechanism, and when the movable connecting piece slides to the unlocking position in the slide rail, the elastic locking mechanism locks the movable connecting piece so that the movable connecting piece is connected to the frame shifting jack through the connecting joint.

[0018] Specifically, a cover is provided on the circular hole, a plugboard seat is provided on the outer edge of the opening, plugboard seats are provided at both ends of the opening with plugholes for inserting the plugboard, a limiting portion is provided at the first end of the plugboard along the width direction of the plugboard, and a stopper is detachably connected to the second end of the plugboard;

[0019] The second end of the plug board can be connected to the stopper after passing through the plug hole in sequence, so that the plug board is fixed above the opening.

[0020] Specifically, the stopper is a D-shaped card, and the plug plate is provided with a pin hole for inserting the straight rod part of the D-shaped card.

[0021] The embodiment of the present invention provides a quick-change mechanism of an advanced hydraulic support base and an advanced hydraulic support base, wherein the quick-change mechanism includes a movable connecting piece and an elastic locking mechanism; the elastic locking mechanism is detachably connected to the base of the advanced hydraulic support base; when the movable connecting piece reaches the locking position, the elastic locking mechanism can fix the movable connecting piece on the base, so that the movable connecting piece is connected to the frame shifting jack through a connecting joint, so that the advanced hydraulic support can be used as a wind tunnel advanced support. When the elastic locking mechanism releases the locking of the movable connecting piece, the movable connecting piece can be separated from the base, and after the elastic locking mechanism is removed from the base, the advanced hydraulic support can be used as a base tunnel advanced support, thereby realizing the conversion of the two advanced hydraulic supports by loading and unloading the movable connecting piece and the elastic locking mechanism on the base, thereby avoiding the problem of easy confusion and error in the design and production process of the two advanced supports, reducing the workload and improving the yield rate; and the assembly is simple, reducing the assembly cycle and assembly amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A structural diagram of a quick-change mechanism of an advanced hydraulic support base provided by an embodiment of the present invention;

[0024] Figure 2 is a structural diagram of the elastic locking mechanism;

[0025] Figure 3 is a structural diagram of a movable connecting member;

[0026] Figure 4 This is a structural diagram of the advance support as the wind tunnel advance support;

[0027] Figure 5 This is the structural diagram of the advance support as the advance support of the base tunnel;

[0028] Figure 6 This is a structural diagram of the advance support serving as the base of the advance support of the base tunnel.

[0029] Among them, 1-elastic locking mechanism, 101-pin, 102-elastic part, 103-limiting part, 1031-bushing, 1032-flange sleeve, 1033-screw, 104-pull ring, 105-circlip, 106-end cover, 2-slide rail, 3-movable connecting part, 301-chamfer, 4-base, 5-connecting joint, 6-removing frame jack, 7-cover body, 8-plug plate seat, 9-plug plate, 901-limiting part, 10-D-shaped card. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In a first aspect, according to an embodiment of the present invention, Figure 1 and Figure 2 As shown, a quick-change mechanism of an advanced hydraulic support base is provided, including a movable connecting member 3 and an elastic locking mechanism 1; the elastic locking mechanism 1 is detachably connected to a base 4 of the advanced hydraulic support base; when the movable connecting member 3 reaches a locking position, the elastic locking mechanism 1 can fix the movable connecting member 3 on the base 4, so that the movable connecting member 3 is connected to the frame shifting jack 6 through a connecting joint 5; when the elastic locking mechanism 1 releases the lock on the movable connecting member 3, the movable connecting member 3 can be separated from the base 4.

[0032] The locking position is a position that can be locked by the elastic locking mechanism 1, and when the movable connecting member 3 reaches the locking position, the movable connecting member 3 is partially located outside the base 4 for connecting with the connecting joint 5. In order to facilitate the connection with the connecting joint 5, the part of the movable connecting member 3 located outside the base 4 is provided with a connecting hole, etc. Specifically, the movable connecting member 3 can adopt an ear plate.

[0033] The present embodiment provides a quick-change mechanism for the base of an advanced hydraulic support, which includes a movable connecting member 3 and an elastic locking mechanism 1; the elastic locking mechanism 1 is detachably connected to the base 4 of the advanced hydraulic support base; when the movable connecting member 3 reaches the locking position, the elastic locking mechanism 1 can fix the movable connecting member 3 on the base 4, so that the movable connecting member 3 is connected to the frame shifting jack 6 through the connecting joint 5, so that the advanced hydraulic support can be used as a wind tunnel advanced support. When the elastic locking mechanism 1 releases the locking of the movable connecting member 3, the movable connecting member 3 can be separated from the base 4, and after the elastic locking mechanism 1 is removed from the base 4, the advanced hydraulic support can be used as a base tunnel advanced support, so that the conversion of the two advanced hydraulic supports can be realized by loading and unloading the movable connecting member 3 and the elastic locking mechanism 1 on the base 4, thereby avoiding the problem of easy confusion and error in the design and production process of the two advanced supports, reducing the workload and improving the yield rate; and the assembly is simple, reducing the assembly cycle and assembly amount.

[0034] In the above embodiment, if Figure 1 and Figure 2 As shown, the elastic locking mechanism 1 includes a limiter 103, a latch 101 and an elastic member 102; the limiter 103 is detachably connected to the base 4, the latch 101 extends into the limiter 103, the latch 101 is provided with a step surface, and the elastic member 102 abuts between the step surface and the limiter 103; the base 4 is provided with a slide rail 2, and the base 4 is provided with an opening at a portion corresponding to the slide rail 2, and the movable connecting member 3 can pass through the opening and slide in the slide rail 2, and the slide rail 2 and the movable connecting member 3 are provided with through holes; when the movable connecting member 3 slides to the unlocking position in the slide rail 2, the elastic member 102 can push the latch 101 to pass through the through holes of the slide rail 2 and the movable connecting member 3 in sequence; when the latch 101 moves in a direction away from the movable connecting member 3, the latch 101 is disengaged from the through holes of the slide rail 2 and the movable connecting member 3, so that the movable connecting member 3 slides out of the slide rail 2. Among them, the elastic member 102 can be a spring.

[0035] In this embodiment, when it is needed to be used as an air lane advance bracket, after the movable connecting member 3 is slid in the slide rail 2 to the unlocked position, the elastic member 102 pushes the latch 101 through the through holes of the slide rail 2 and the movable connecting member 3 in turn by the compressed elastic force, thereby fixing the movable connecting member 3, and then the staff installs the frame transfer jack 6 on the movable connecting member 3 through the connecting joint 5, so that the advance bracket can be used as an air lane advance bracket. When it is needed to be used as a base lane advance bracket, the latch 101 is moved away from the movable connecting member 3, so that the latch 101 is disengaged from the through holes of the slide rail 2 and the movable connecting member 3, and then the movable connecting member 3 is slid out of the slide rail 2, and then the elastic locking mechanism 1 is removed, so that the advance bracket can be used as a base lane advance bracket.

[0036] In the above embodiment, if Figure 1 and Figure 2 As shown, the limit member 103 includes a flange sleeve 1032 and a bushing 1031. A circular hole is opened on the base 4 at a position corresponding to the through hole of the slide rail 2, and the outer edge of the flange sleeve 1032 is detachably connected to the edge of the circular hole; the bushing 1031 is located in the flange sleeve 1032, and the bushing 1031 and the flange sleeve 1032 are interference fit, and a fixing member is penetrated through the outer peripheral wall of the flange sleeve 1032 to lock the bushing 1031.

[0037] The flange sleeve 1032 and the edge of the circular hole can be detachably connected by bolts. The fixing member can be a screw 1033, which is used to fix the bushing 1031 to prevent the bushing 1031 and the flange sleeve 1032 from rotating relative to each other, thereby improving the stability of the connection between the flange sleeve 1032 and the bushing 1031.

[0038] In the above embodiment, if Figure 1 and Figure 2 As shown, an end cap 106 is provided at the outer edge of one end of the latch 101 away from the movable connecting member 3 , and the end cap 106 can play a role in dust prevention. Specifically, the end cap 106 is connected to the latch 101 through a retaining spring 105 .

[0039] In the above embodiment, if Figure 1 and Figure 2 As shown, a pull ring 104 is provided at one end of the latch pin 101 away from the movable connecting member 3. The staff can pull the pull ring 104 to move the pin shaft in a direction away from the connecting plate, which is convenient for the staff to operate.

[0040] In the above embodiment, if Figure 3 As shown, the corner where the movable connecting member 3 extends into one end of the slide rail 2 is provided with a chamfer 301. The chamfer 301 can make the movable connecting member 3 slide more smoothly in the slide rail 2.

[0041] In the second aspect, according to an embodiment of the present invention, an advance hydraulic support is provided, including two base pairs arranged from top to bottom, each base pair including two bases 4 arranged opposite to each other, each base 4 is provided with a circular hole for connecting an elastic locking mechanism 1 of a quick-change mechanism of the above-mentioned advance hydraulic support base, and a slide rail 2 for sliding a movable connecting part 3 of the quick-change mechanism of the above-mentioned advance hydraulic support base, and an opening is provided on the part of the base 4 corresponding to the slide rail 2.

[0042] When it is needed to be used as an air lane advance bracket, an elastic locking mechanism 1 is installed on the circular hole. When the movable connecting member 3 reaches the locking position, the elastic locking mechanism 1 can fix the movable connecting member 3 on the base 4, so that the movable connecting member 3 is connected to the frame shifting jack 6 through the connecting joint 5, so that the advance hydraulic support can be used as an air lane advance bracket. When the elastic locking mechanism 1 releases the lock on the movable connecting member 3, the movable connecting member 3 can be separated from the base 4, and after the elastic locking mechanism 1 is removed from the base 4, the advance hydraulic support can be used as a base lane advance bracket. Therefore, by loading and unloading the movable connecting member 3 and the elastic locking mechanism 1 on the base 4, the conversion of the two advance hydraulic supports can be realized, thereby avoiding the problem of easy confusion and error in the design and production process of the two advance brackets, reducing the workload and improving the yield rate; and the assembly is simple, reducing the assembly cycle and assembly volume.

[0043] In specific applications, such as Figure 4 As shown, when the advance bracket is used as an air channel advance bracket, the edge of the circular hole is detachably connected with an elastic locking mechanism 1, and when the movable connecting member 3 slides to the unlocking position in the slide rail 2, the elastic locking mechanism locks the movable connecting member 3 so that the movable connecting member 3 is connected to the frame shifting jack 6 through the connecting joint 5.

[0044] like Figure 5 As shown, when the advance bracket is used as the base lane advance bracket, when the elastic locking mechanism 1 releases the lock on the movable connecting member 3, the movable connecting member 3 can be separated from the base 4, and the elastic locking mechanism 1 can be removed from the base 4. Among them, the specific structure of the elastic locking mechanism 1 and the movable connecting member 3 can adopt the structure in the above embodiment, and no further description is given.

[0045] Further, in order to prevent dust from entering the base 4 through the circular holes and openings, as Figure 6 As shown, a cover body 7 is provided on the circular hole, a plug-in board seat 8 is provided on the outer edge of the opening, plug-in board seat 8 is provided with plug-in holes for inserting plug-in boards 9 at both ends of the opening, a limiting portion 901 is provided at the first end of the plug-in board 9 along the width direction of the plug-in board 9, and a stopper is detachably connected to the second end of the plug-in board 9; the second end of the plug-in board 9 can be connected to the stopper after passing through the plug-in holes in turn, so that the plug-in board 9 is fixed above the opening.

[0046] The cover body 7 can be connected to the edge of the circular hole by bolts to facilitate the loading and unloading of the cover body 7. The stopper is a D-shaped card 10, and the plug plate 9 is provided with a pin hole for inserting the straight rod part of the D-shaped card 10. Using the D-shaped card 10 as a stopper can facilitate the loading and unloading of the stopper by the staff.

[0047] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0048] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A quick-change mechanism for a base of an advanced hydraulic support, characterized in that: It comprises a movable connecting piece (3) and an elastic locking mechanism (1); the elastic locking mechanism (1) is detachably connected to a base (4) of the advanced hydraulic support base; When the movable connecting member (3) reaches the locking position, the elastic locking mechanism (1) can fix the movable connecting member (3) on the base (4), so that the movable connecting member (3) is connected to the frame transfer jack (6) through the connecting joint (5); when the elastic locking mechanism (1) releases the locking of the movable connecting member (3), the movable connecting member (3) can be separated from the base (4); The elastic locking mechanism (1) comprises a limiting member (103), a latch (101) and an elastic member (102); The limiting member (103) is detachably connected to the base (4), the latch (101) extends into the limiting member (103), a step surface is provided on the latch (101), and the elastic member (102) abuts between the step surface and the limiting member (103); The base (4) is provided with a slide rail (2), a portion of the base (4) corresponding to the slide rail (2) is provided with an opening, the movable connecting member (3) can pass through the opening and slide in the slide rail (2), and through holes are provided on both the slide rail (2) and the movable connecting member (3); When the movable connecting member (3) slides to an unlocking position in the slide rail (2), the elastic member (102) can push the latch (101) to pass through the through holes of the slide rail (2) and the movable connecting member (3) in sequence; when the latch (101) moves in a direction away from the movable connecting member (3), the latch (101) disengages from the through holes of the slide rail (2) and the movable connecting member (3), so that the movable connecting member (3) slides out of the slide rail (2).

2. The quick-change mechanism of the advanced hydraulic support base according to claim 1 is characterized in that: The limiting member (103) comprises a flange sleeve (1032) and a bushing (1031); a circular hole is provided on the base (4) at a position corresponding to the through hole of the slide rail (2); and the outer edge of the flange sleeve (1032) is detachably connected to the edge of the circular hole; The bushing (1031) is located in the flange sleeve (1032), the bushing (1031) and the flange sleeve (1032) are interference fit, and a fixing piece is penetrated through the outer peripheral wall of the flange sleeve (1032) to lock the bushing (1031).

3. The quick-change mechanism of the advanced hydraulic support base according to claim 1 is characterized in that: An end cover (106) is provided at the outer edge of one end of the latch pin (101) away from the movable connecting member (3).

4. The quick-change mechanism of the advanced hydraulic support base according to claim 1 is characterized in that: A pull ring (104) is provided at one end of the latch pin (101) away from the movable connecting member (3).

5. The quick-change mechanism of the advanced hydraulic support base according to claim 1 is characterized in that: A chamfer (301) is provided at the corner where the movable connecting member (3) extends into one end of the slide rail (2).

6. An advanced hydraulic support, characterized in that: It comprises two base pairs arranged from top to bottom, each of the base pairs comprises two bases (4) arranged opposite to each other, each of the bases (4) is provided with a circular hole for connecting an elastic locking mechanism (1) of a quick-change mechanism of an advance hydraulic support base as described in any one of claims 1 to 5, and a slide rail (2) for sliding a movable connecting member (3) of a quick-change mechanism of an advance hydraulic support base as described in any one of claims 1 to 5, and an opening is provided on the base (4) at a portion corresponding to the slide rail (2).

7. The advanced hydraulic support according to claim 6, characterized in that: The elastic locking mechanism (1) is detachably connected to the edge of the circular hole, and when the movable connecting member (3) slides to an unlocking position in the slide rail (2), the elastic locking mechanism locks the movable connecting member (3) so that the movable connecting member (3) is connected to the frame transfer jack (6) via the connecting joint (5).

8. The advanced hydraulic support according to claim 6, characterized in that: The circular hole is provided with a cover body (7), the outer edge of the opening is provided with a plug board seat (8), the plug board seat (8) is provided with plug holes for inserting a plug board (9) at both ends of the opening, the first end of the plug board (9) is provided with a limiting portion (901) along the width direction of the plug board (9), and the second end of the plug board (9) is detachably connected with a stopper; The second end of the plug plate (9) can be connected to the stopper after passing through the plug hole in sequence, so that the plug plate (9) is fixed above the opening.

9. The advanced hydraulic support according to claim 8, characterized in that: The stopper is a D-shaped card (10), and the inserting plate (9) is provided with a pin hole for inserting the straight rod part of the D-shaped card (10).

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