CN214787483U - Light hydraulic support for advance support - Google Patents
Light hydraulic support for advance support Download PDFInfo
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- CN214787483U CN214787483U CN202022845632.1U CN202022845632U CN214787483U CN 214787483 U CN214787483 U CN 214787483U CN 202022845632 U CN202022845632 U CN 202022845632U CN 214787483 U CN214787483 U CN 214787483U
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Abstract
The utility model discloses a light forepoling hydraulic support, which comprises a main top beam, an auxiliary top beam, a support moving jack, a main top beam upright post and an auxiliary top beam upright post; main back timber and vice back timber all have straight top surface, length direction is along the long roof beam type structure that the fore-and-aft direction set up, main back timber includes preceding articulated ear seat, back articulated ear seat, front column mount pad I, back column mount pad I with move a jack mount ear seat I, be equipped with main back timber on the top plane of vice back timber and hold the recess, the depth dimension that main back timber holds the recess is greater than the height dimension of main back timber, the tank bottom that main back timber holds the recess is equipped with main back timber spout, vice back timber includes front column mount pad II, back column mount pad II with move a jack mount ear seat II, main back timber is installed on vice back timber through main back timber holding recess and main back timber spout joint. The light-duty advance support hydraulic support has the characteristics of flexible operation and convenient movement, and can realize the maximum integrity without damaging the roadway roof.
Description
Technical Field
The utility model relates to a hydraulic support specifically is a light-duty advance support hydraulic support belongs to hydraulic support technical field.
Background
In the coal mining process of the underground coal mine, in order to ensure the production safety of the fully mechanized coal mining face, the top plate of the roadway must be effectively supported. In the working face stoping process, along with the continuous increase of goaf, the upper part rock stratum will shift gradually to the deep of coal rock mass around to form leading and lateral bearing pressure respectively in the front portion of working face and both sides, combine the tunnel in working face the place ahead and receive the superposition effect of dual pressure, and this regional equipment is intensive, staff's round trip is also more frequent, consequently develops the key place of protection work. The advance support can not only effectively prevent the emergence of tunnel advance support section roof fall accident, improves the security of personnel's operation, can also accelerate working face advancing speed, realizes the safe high-efficient production of working face.
The most applied advance support in China is that a single hydraulic prop is matched with a hinged top beam for supporting, the support moving mode is a manual carrying mode, and although the traditional support mode has high flexibility, the problems of weak support strength, low support efficiency, poor safety, high labor intensity and the like exist, and the advance support cannot adapt to the requirements of maintenance and management of deep and equal-strength impact advance roadways and large-sized large-section advance roadways. Therefore, the advanced support hydraulic support developed based on the support form of the hydraulic support used in the fully mechanized mining face appears in the prior art. The widely used four-bar type forepoling hydraulic support at present generally comprises a top beam, an oblique beam, a front connecting bar, a rear connecting bar, a split type base, a stand column, various jacks and hydraulic auxiliary elements. Although the advance support hydraulic support has larger working resistance and supporting height and can meet the application conditions of large mining height fully-mechanized mining and fully-mechanized caving face, the support distance of the advance support hydraulic support usually reaches 20m and the span is larger, so the advance support hydraulic support usually has the problems of large size, heavy weight and inconvenient transportation and installation, a stepping top beam support top plate is generally adopted by the current advance support hydraulic support and is pushed to advance only by a jack on a base, when the advance support is moved, actions such as frame lowering, frame pulling, frame lifting and the like need to be realized, the top plate in a support area is sequentially and repeatedly supported in the support lifting process, and the integrity of the top plate is damaged.
Disclosure of Invention
To the problem, the utility model provides a light-duty advance support hydraulic support has the flexible operation, removes convenient characteristics, and can realize furthest and do not destroy the integrality of tunnel roof.
In order to realize the aim, the light forepoling hydraulic support comprises a main top beam, an auxiliary top beam, a support moving jack, a main top beam upright post and an auxiliary top beam upright post;
the main top beam is of a long beam type structure with a straight top surface and arranged in the length direction along the front and back direction, the front end and the back end of the main top beam are respectively fixedly provided with a front hinged lug seat and a back hinged lug seat which have the same hinged height and can be installed in a plugging and matching manner, the bottom plane of the main top beam is respectively provided with a front upright post installation seat I and a back upright post installation seat I along the front and back direction, and the main top beam is also provided with a frame moving jack installation lug seat I;
the auxiliary top beam is a long beam type structure with a straight top surface and the length direction arranged along the front-back direction, the main top beam accommodating groove is formed in the top plane of the auxiliary top beam along the left-right direction, the main top beam accommodating groove penetrates through the auxiliary top beam along the front-back direction, the width size of the main top beam accommodating groove along the left-right direction is in clearance fit with the width size of the main top beam along the left-right direction, the depth size of the main top beam accommodating groove along the vertical direction is larger than the height size of the main top beam along the vertical direction, a main top beam sliding groove penetrating through the auxiliary top beam along the vertical direction is further formed in the groove bottom of the main top beam accommodating groove, the main top beam sliding groove is formed along the front-back direction, the width size of the main top beam sliding groove along the left-right direction is in clearance fit with the width size of the rear upright post mounting seat I along the left-right direction, and the main top beam is mounted on the auxiliary top beam in a clamping mode through the main top beam accommodating groove and the main top beam sliding groove; a front upright post mounting seat II and a rear upright post mounting seat II are respectively arranged on the bottom plane of the auxiliary top beam along the front-back direction, the front upright post mounting seat II and the rear upright post mounting seat II are respectively positioned behind the front upright post mounting seat I and the rear upright post mounting seat I, and a frame moving jack mounting ear seat II is also arranged on the auxiliary top beam corresponding to the frame moving jack mounting ear seat I;
two ends of the frame moving jack are respectively hinged to a frame moving jack mounting lug seat I and a frame moving jack mounting lug seat II;
the main top beam stand column and the auxiliary top beam stand column are respectively arranged into two parts, the top ends of the two main top beam stand columns are respectively installed on the front stand column installation seat I and the rear stand column installation seat I, and the top ends of the two auxiliary top beam stand columns are respectively installed on the front stand column installation seat II and the rear stand column installation seat II.
As a further improvement of the utility model, the total area size of the top surface of the auxiliary top beam is not less than that of the main top beam.
As a further improvement of the utility model, the width dimension of the main top beam chute along the left and right directions is less than the width dimension of the main top beam along the left and right directions.
As a further improvement of the utility model, the movable jack is arranged in a high-back inclined manner.
As the utility model discloses a further improvement scheme, back column mouting seat I includes pedestal and lower pedestal, and the width dimension of lower pedestal along controlling the direction is greater than the width dimension of pedestal along controlling the direction, and the width dimension clearance fit of direction about main back timber spout along the width dimension of controlling the direction and the last pedestal along controlling the direction of back column mouting seat I.
As a further improvement of the utility model, the high slope setting of low back before moving a jack.
As the utility model discloses a further improvement scheme moves a jack installation ear seat I and stretches out to the left side position and/or the right side position of main back timber through the mounting panel, moves a jack installation ear seat II and corresponds left side position and/or the right side position of stretching out to vice back timber through the mounting panel.
Compared with the prior art, when the light-duty advance support hydraulic support is used in an underground roadway, two light-duty advance support hydraulic supports can be bilaterally and symmetrically arranged into a group in the left and right direction, and a plurality of light-duty advance support hydraulic supports can be connected in series front and back through the front hinge lug seat and the back hinge lug seat into a whole in the length direction, so that a longer support distance larger than 20m can be realized, and the light-duty advance support hydraulic support has the characteristics of flexible operation and convenient movement; in the frame moving process of the light-duty advance support hydraulic support, the top plate is always in the alternate support state of the main top beam and the auxiliary top beam, and the frame moving operation of the top plate under the condition of no supporting force does not exist, so that the completeness of the roadway top plate can be furthest prevented from being damaged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a schematic structural view of the main top beam of the present invention;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a top view of FIG. 3;
FIG. 6 is a schematic structural view of the auxiliary top beam of the present invention;
FIG. 7 is a left side view of FIG. 6;
fig. 8 is a top view of fig. 6.
In the figure: 1. the main back timber, 11, preceding articulated ear seat, 12, back articulated ear seat, 13, front column mount pad I, 14, back column mount pad I, 15, move a jack mount pad I, 2, vice back timber, 21, main back timber holds the recess, 22, front column mount pad II, 23, back column mount pad II, 24, move a jack mount pad II, 3, move a jack, 4, main back timber stand, 5, vice back timber stand.
Detailed Description
The present invention will be further explained with reference to the drawings (hereinafter, the right side direction of fig. 1 is referred to as the front).
As shown in fig. 1 and 2, the hydraulic support for light forepoling comprises a main top beam 1, an auxiliary top beam 2, a support moving jack 3, a main top beam upright post 4 and an auxiliary top beam upright post 5.
As shown in fig. 3 to 5, the main top beam 1 is a long beam structure with a straight top surface and a length direction arranged along the front and rear direction, for manufacturing convenience, the longitudinal section of the main top beam 1 can be a rectangular structure, the front end and the rear end of the main top beam 1 are respectively and fixedly provided with a front hinged ear seat 11 and a rear hinged ear seat 12 which are hinged to be same in height and can be installed in a plugging and matching manner, the bottom plane of the main top beam 1 is respectively provided with a front upright mounting seat i 13 and a rear upright mounting seat i 14 along the front and rear direction, and the main top beam 1 is further provided with a movable support jack mounting ear seat i 15.
As shown in fig. 6 to 8, the auxiliary top beam 2 has a long beam structure with a straight top surface and a length direction set along the front-rear direction, a main top beam accommodating groove 21 is arranged at the symmetrical center position of the auxiliary top beam 2 along the left-right direction on the top plane, the main top beam accommodating groove 21 penetrates through the auxiliary top beam 2 along the front-rear direction, the width dimension of the main top beam accommodating groove 21 along the left-right direction is in clearance fit with the width dimension of the main top beam 1 along the left-right direction, the depth dimension of the main top beam accommodating groove 21 along the vertical direction is greater than the height dimension of the main top beam 1 along the vertical direction, a main top beam sliding groove which penetrates through the auxiliary top beam 2 along the vertical direction is further arranged at the bottom of the main top beam accommodating groove 21, the main top beam sliding groove is arranged along the front-rear direction, and the width dimension of the main top beam sliding groove along the left-right direction is in clearance fit with the width dimension of the rear upright post mounting seat i 14 along the left-right direction, the main top beam 1 is clamped and installed on the auxiliary top beam 2 through the main top beam accommodating groove 21 and the main top beam sliding groove; and a front upright post mounting seat II 22 and a rear upright post mounting seat II 23 are respectively arranged on the bottom plane of the auxiliary top beam 2 along the front-rear direction, the front upright post mounting seat II 22 and the rear upright post mounting seat II 23 are respectively positioned behind the front upright post mounting seat I13 and the rear upright post mounting seat I14, and a frame moving jack mounting lug seat II 24 is also arranged on the auxiliary top beam 2 corresponding to the frame moving jack mounting lug seat I15.
And two ends of the frame moving jack 3 are respectively hinged on a frame moving jack mounting lug seat I15 and a frame moving jack mounting lug seat II 24.
The main top beam upright post 4 and the auxiliary top beam upright post 5 are respectively arranged into two pieces, the top ends of the two main top beam upright posts 4 are respectively arranged on a front upright post mounting seat I13 and a rear upright post mounting seat I14, and the top ends of the two auxiliary top beam upright posts 5 are respectively arranged on a front upright post mounting seat II 22 and a rear upright post mounting seat II 23.
When the light-duty advance support hydraulic support is in normal support operation, as shown in fig. 1, a support moving jack 3 is in a completely retracted state, a main top beam upright post 4 on a front upright post mounting seat I13 is in a state of being close to an auxiliary top beam upright post 5 on a front upright post mounting seat II 22, a main top beam upright post 4 on a rear upright post mounting seat I14 is in a state of being close to the auxiliary top beam upright post 5 on a rear upright post mounting seat II 23, the main top beam upright post 4 and the auxiliary top beam upright post 5 are both in a state of extending out and stably supporting on a bottom plate, and at the moment, a main top beam 1 and an auxiliary top beam 2 are in a top plate supporting state with the top surfaces being flush;
when the frame moving operation is carried out, the auxiliary top beam upright post 5 is controlled to be in a pressure maintaining state, the main top beam upright post 4 is controlled to be unloaded, the main top beam 1 descends for a certain distance to be separated from the top plate, the main top beam 1 and the main top beam upright post 4 are integrally supported by the auxiliary top beam 2, then the frame moving jack 3 is controlled to extend out, the main top beam 1 moves forwards along the main top beam accommodating groove 21 under the pushing of the frame moving jack 3 and is pushed out, the main top beam 1 moves forwards to a set step pitch and then stops the extending action of the frame moving jack 3, then the main top beam upright post 4 is controlled to extend out to enable the main top beam 1 to be supported on the top plate and be in a supporting state after being jacked, then the auxiliary top beam upright post 5 is controlled to be unloaded, the auxiliary top beam 2 is separated from the top plate and then is controlled to retract, the auxiliary top beam 2 moves forwards along the main top beam 1 through the main top beam accommodating groove 21 under the pulling of the frame moving jack 3 and is pushed out, the frame moving jack 3 is completely retracted, and controlling the auxiliary top beam upright post 5 to extend out to enable the auxiliary top beam 2 to be supported on the top plate in a supporting state after being jacked up, and completing the frame moving operation of one step.
In the frame moving process of the light forepoling hydraulic support, the top plate is always in the alternate supporting state of the main top beam 1 and the auxiliary top beam 2, and the frame moving operation of the top plate under the condition of no supporting force does not exist, so that the completeness of the roadway top plate can be furthest prevented from being damaged. When the hydraulic support is used in an underground roadway, a plurality of light forepoling hydraulic supports can be connected in series front and back through the front hinged lug seat 11 and the rear hinged lug seat 12 in the length direction to be used, and a longer supporting distance larger than 20m can be achieved; in the left and right direction, two light forepoling hydraulic supports can be arranged into a group for use in bilateral symmetry.
For realizing moving the more firm supporting effect of support in-process to the roof, conduct the utility model discloses a further improvement scheme, the total area size of top surface of vice back timber 2 is not less than the total area size of top surface of main back timber 1.
In order to guarantee that main back timber 1 is in the state that is located main back timber and holds recess 21 all the time, as the utility model discloses a further improvement scheme, as shown in fig. 2, main back timber spout is less than main back timber 1 along the width dimension of left right direction. So set up, not only can realize that main back timber 1 is in the state that is located main back timber and holds recess 21 all the time, can realize breaking away from the bottom plate completely after moving a 4 uninstallations of in-process control main back timber stand moreover, be convenient for move the frame.
Under the prerequisite of guaranteeing the downward movement stroke that main back timber 1 and vice back timber 2 break away from the roof, for reducing the lapse resistance that moves a jack 3, as the utility model discloses a further improvement scheme moves a low slope setting in high back before the jack 3. The support moving jack 3 which is obliquely arranged in a high front-to-back manner and low back-to-front manner can generate an upward component force in the extending or retracting process, so that the pushing resistance of the support moving jack 3 can be reduced.
In order to break away from the bottom plate completely after moving 5 uninstallations of the vice back timber stand of in-process control, be convenient for move the frame, as the utility model discloses a further improvement scheme, as shown in fig. 4, back column mouting seat I14 includes upper base body and lower seat body, and the width dimension of lower seat body along left right direction is greater than the width dimension of upper base body along left right direction, and the width dimension of main back timber spout along left right direction and the width dimension clearance fit of the upper base body along left right direction of back column mouting seat I14. So set up, can realize when moving the uninstallation of the vice back timber stand 5 of in-process control that vice back timber 2 breaks away from the roof after through the lower seat body support of back upright post mount pad I14, and then can realize breaking away from the bottom plate, be convenient for move the frame after the retraction of vice back timber stand 5.
In order to guarantee that main back timber 1 or vice back timber 2 stabilize through the main back timber spout antedisplacement, as the utility model discloses a further improvement scheme, as shown in fig. 1, it sets up to move the high slope in low back before the jack 3. The support moving jack 3 obliquely arranged in a low front-to-back high manner generates a downward component force in the extending or retracting process, so that the main top beam 1 can be stably attached to the bottom of the main top beam accommodating groove 21 in the advancing process, and the auxiliary top beam 2 can be stably attached to the upper base body of the rear upright mounting base I14 in the advancing process.
In order to avoid the motion interference, as the utility model discloses a further improvement scheme, as shown in fig. 2, move a jack installation ear seat I15 and stretch out to the left side position and/or the right side position of main back timber 1 through the mounting panel, move a jack installation ear seat II 24 and correspond through the mounting panel and stretch out to the left side position and/or the right side position of vice back timber 2. Namely, the frame moving jack 3 is provided at the left position and/or the right position of the main top beam 1 and the auxiliary top beam 2.
Claims (7)
1. A light forepoling hydraulic support comprises a main top beam (1), an auxiliary top beam (2), a support moving jack (3), a main top beam upright post (4) and an auxiliary top beam upright post (5); it is characterized in that the preparation method is characterized in that,
the main top beam (1) is of a long beam type structure with a straight top surface and a length direction arranged along the front and back directions, a front hinge lug seat (11) and a back hinge lug seat (12) which are same in hinge height and can be installed in a plug-in fit mode are fixedly arranged at the front end and the back end of the main top beam (1) respectively, a front upright post mounting seat I (13) and a back upright post mounting seat I (14) are arranged on the bottom plane of the main top beam (1) along the front and back directions respectively, and a frame moving jack mounting lug seat I (15) is further arranged on the main top beam (1);
the auxiliary top beam (2) is of a long beam type structure with a straight top surface and a length direction arranged along the front and rear directions, a main top beam accommodating groove (21) is formed in the symmetrical center position of the auxiliary top beam (2) along the left and right directions on the top plane, the main top beam accommodating groove (21) penetrates through the auxiliary top beam (2) along the front and rear directions, the width size of the main top beam accommodating groove (21) along the left and right directions is in clearance fit with the width size of the main top beam (1) along the left and right directions, the depth size of the main top beam accommodating groove (21) along the vertical direction is larger than the height size of the main top beam (1) along the vertical direction, a main top beam sliding groove penetrating through the auxiliary top beam (2) along the vertical direction is further formed in the groove bottom of the main top beam accommodating groove (21), the main top beam sliding groove is arranged along the front and rear directions, and the width size of the main top beam sliding groove along the left and right directions is in clearance fit with the width size of the rear upright post mounting seat I (14) along the left and right directions, the main top beam (1) is clamped and installed on the auxiliary top beam (2) through the main top beam accommodating groove (21) and the main top beam sliding groove; a front upright post mounting seat II (22) and a rear upright post mounting seat II (23) are respectively arranged on the bottom plane of the auxiliary top beam (2) along the front-back direction, the front upright post mounting seat II (22) and the rear upright post mounting seat II (23) are respectively positioned behind the front upright post mounting seat I (13) and the rear upright post mounting seat I (14), and a frame moving jack mounting ear seat II (24) is also arranged on the auxiliary top beam (2) corresponding to the frame moving jack mounting ear seat I (15);
two ends of the frame moving jack (3) are respectively hinged to a frame moving jack mounting lug seat I (15) and a frame moving jack mounting lug seat II (24);
the main top beam upright post (4) and the auxiliary top beam upright post (5) are respectively arranged into two pieces, the top ends of the two main top beam upright posts (4) are respectively installed on a front upright post installation seat I (13) and a rear upright post installation seat I (14), and the top ends of the two auxiliary top beam upright posts (5) are respectively installed on a front upright post installation seat II (22) and a rear upright post installation seat II (23).
2. A hydraulic support for light forepoling according to claim 1, characterized in that the total size of the top surface of the secondary top beam (2) is not less than that of the main top beam (1).
3. A lightweight forepoling hydraulic support according to claim 1 or 2, characterized in that the width dimension of the main header runner in the left-right direction is smaller than the width dimension of the main header (1) in the left-right direction.
4. A lightweight forepoling hydraulic support as claimed in claim 3, characterized in that the racking jacks (3) are arranged inclined high front to low back.
5. A light-duty advance support hydraulic support as claimed in claim 3, wherein the rear pillar mount i (14) includes an upper seat body and a lower seat body, a width dimension of the lower seat body in the left-right direction is larger than a width dimension of the upper seat body in the left-right direction, and a width dimension of the main header runner in the left-right direction is clearance-fitted with a width dimension of the upper seat body of the rear pillar mount i (14) in the left-right direction.
6. A light-duty advance support hydraulic support according to claim 5, characterized in that the support-moving jack (3) is arranged obliquely with low front and high back.
7. The hydraulic support for light forepoling as claimed in claim 1 or 2, characterized in that the first mounting lug (15) of the jack is extended to the left and/or right position of the main top beam (1) through the mounting plate, and the second mounting lug (24) of the jack is correspondingly extended to the left and/or right position of the auxiliary top beam (2) through the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022845632.1U CN214787483U (en) | 2020-12-01 | 2020-12-01 | Light hydraulic support for advance support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022845632.1U CN214787483U (en) | 2020-12-01 | 2020-12-01 | Light hydraulic support for advance support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787483U true CN214787483U (en) | 2021-11-19 |
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ID=78710156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022845632.1U Active CN214787483U (en) | 2020-12-01 | 2020-12-01 | Light hydraulic support for advance support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787483U (en) |
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2020
- 2020-12-01 CN CN202022845632.1U patent/CN214787483U/en active Active
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