CN111577349A - Hydraulic support - Google Patents
Hydraulic support Download PDFInfo
- Publication number
- CN111577349A CN111577349A CN202010312565.9A CN202010312565A CN111577349A CN 111577349 A CN111577349 A CN 111577349A CN 202010312565 A CN202010312565 A CN 202010312565A CN 111577349 A CN111577349 A CN 111577349A
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- Prior art keywords
- top beam
- hydraulic
- support
- base
- cylinder
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
- E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/55—Details of the ends of props of prop heads or feet
Abstract
The invention relates to a walking mine roof support for mining, in particular to a hydraulic support. Hydraulic support includes the base, the back timber, stand and guide post, mated front column and back stand about the stand includes, it is preceding, the back stand is scalable stand, it is preceding, the both ends of back stand are connected respectively on base and back timber, and drive the back timber lift when flexible, arrange in pairs about the guide post, and upper and lower both ends are connected base and back timber respectively, when the back timber goes up and down, the guide post is flexible in the direction of upper and lower side, control two guide post intervals and set up, and penetrating sight passageway around reserving between the two, can be convenient for observe the swing state of hydraulic support rear portion balance beam and the operating condition of equipment such as rear portion conveyer through this sight passageway, with avoid the misoperation and lead to swing beam and the last scraper conveyor of back timber and other relevant mechanism to bump or interfere.
Description
Technical Field
The invention relates to a walking mine roof support for mining, in particular to a hydraulic support.
Background
The hydraulic support is more important and key supporting equipment in mining engineering operation, and various hydraulic supports aiming at different requirements are continuously available along with continuous maturity of mineral exploitation technology. If the chinese utility model patent of grant publication No. CN205638519U just discloses a thin coal seam solid filling support, this kind of support includes the base, has the back timber through front and back stand support on the base, and front and back stand is scalable stand, and realizes the lift of the relative base of back timber. A four-bar linkage is connected between the top beam and the base and is positioned between the front and rear upright posts, and the four-bar linkage plays a role in stably supporting the top beam in the lifting process of the top beam. In addition, the rear end of base has tamping mechanism and conveyer in addition, and tamping mechanism includes the swing beam, and the swing beam can be around the pin joint luffing motion, and the compacting plate of swing beam rear end can stretch out and retract under the drive of compaction jack to tamp the waste rock of support rear side.
The hydraulic support is mainly suitable for thin coal seams, the support height is 1.4-2.6 m, the space on the lower side of the support is limited after a top beam is lifted, a four-bar mechanism is arranged between a front upright and a rear upright and occupies the space in the middle of the support, when a worker operates at the front end of the support to adjust a swing beam at the rear end to swing, due to the shielding of the four-bar mechanism, the working state of equipment such as a swing state conveyor and the like of the swing beam at the rear part of the hydraulic support cannot be conveniently observed, and the swing beam is easy to collide or interfere with the conveyor and other related structures on the top beam due to improper operation.
Disclosure of Invention
The invention aims to provide a hydraulic support, which is used for solving the problems that the rear end condition of the existing support is inconvenient to observe when the existing support is used, and the swing beam is easy to collide and interfere with other structures at the rear end of the support.
The hydraulic support adopts the following technical scheme: the hydraulic support includes: a base; a top beam; the upright columns comprise a front upright column and a rear upright column which are paired left and right, and the front upright column and the rear upright column are telescopic upright columns; the two ends of the front and rear upright posts are respectively connected to the base and the top beam, and the top beam is driven to lift when the front and rear upright posts stretch; further comprising: the guide posts are arranged in pairs from left to right, the upper end and the lower end of each guide post are respectively connected with the base and the top beam, and the guide posts stretch in the up-down direction when the top beam is lifted; the left and right guide posts are arranged at intervals, and a sight passage which is through from front to back is reserved between the left and right guide posts.
The invention has the beneficial effects that: in the hydraulic support, the guide posts play a role in guiding the lifting of the top beam, the guide posts are arranged in pairs from left to right, and a front-back through sight channel is reserved between the left guide post and the right guide post, so that when an operator operates at the front end of the hydraulic support, the swing state of a swing beam at the rear part of the hydraulic support can be conveniently observed through the sight channel, and the collision or interference of the swing beam with a scraper conveyor and other related mechanisms on the rear top beam caused by improper operation is avoided.
Furthermore, the left and right guide posts correspond to the front and rear upright posts in the front-rear direction.
The beneficial effects are as follows: the left guide post and the right guide post correspond to the front upright post and the rear upright post in the front-rear direction, so that a sight line channel with a large range is reserved between the two guide posts, and the swing range of the swing beam which can be observed through the sight line channel are enlarged.
Furthermore, the left and right guide posts are respectively arranged at the positions between the front and rear upright posts at the corresponding sides.
The beneficial effects are as follows: the position arrangement of the guide columns is beneficial to the integral balance of the top beam, so that the top beam is not easy to deviate in the front-back direction and the left-right direction.
Furthermore, the top beam comprises a front top beam and a rear top beam which are hinged through a horizontal axis, the upper end of the front upright post is connected with the front top beam, the upper end of the rear upright post is connected with the rear top beam, and the upper end of the guide post is connected with a hinged shaft of the front top beam and the rear top beam.
The beneficial effects are as follows: the arrangement of the front top beam and the rear top beam and the arrangement of the positions of the guide columns can form an included angle between the front top beam and the rear top beam and a horizontal plane so as to adapt to top rock strata with different heights and improve the adaptability of the hydraulic support to different strata.
Furthermore, the guide post is of a piston structure and comprises a piston cylinder and a piston rod which is installed in the piston cylinder in a guide sliding mode, one of the piston cylinder and the piston rod is connected with the base, and the other of the piston cylinder and the piston rod is connected with the top beam.
The beneficial effects are as follows: the guide post of the piston structure has a simple structure, the height of the guide post can be freely adjusted along with the height of the top beam, and the guide post is convenient to realize in the invention.
Furthermore, the lower end cartridge of piston cylinder is in the fixed slot, and the assembly that relatively fixes is in the same place in upper and lower direction, and the piston rod is connected with the back timber.
The beneficial effects are as follows: the setting of fixed slot can make the guide post remain vertical state throughout on the base, makes the guide post play better guide effect when the back timber goes up and down, and the processing and the assembly of whole hydraulic support of being convenient for of the form of above-mentioned movable assembly moreover.
Furthermore, the groove edge of the fixed groove is provided with a connecting seat, the outer side of the piston cylinder is provided with a connecting lug, a horizontal through hole is correspondingly formed in the connecting lug and the connecting seat, and the connecting lug and the connecting seat are fixedly assembled in the vertical direction through a pin bolt penetrating through the horizontal through hole.
The beneficial effects are as follows: the connecting lug and the bolt pin are simple in structure, and the piston cylinder and the base are fixedly connected conveniently.
Furthermore, the guide post is a hydraulic cylinder, one of a cylinder body and a piston rod of the hydraulic cylinder is fixedly connected with the base, the other is connected with the top beam, the hydraulic support further comprises a hydraulic control oil circuit system matched with the hydraulic cylinder, the hydraulic control oil circuit system charges oil into the hydraulic cylinder to pressurize when the hydraulic cylinder is required to provide support, and when the hydraulic cylinder is required to provide guidance, the hydraulic cylinder is connected with normal pressure and the cylinder body and the piston rod stretch along with each other when the top beam is lifted.
The beneficial effects are as follows: under the special use condition, the hydraulic cylinder can support the top beam in the whole hydraulic support under the control of the hydraulic control oil way system, so that the bearing capacity of the hydraulic support is further improved.
Furthermore, the top beam comprises a front top beam and a rear top beam which are hinged through a horizontal axis, the upper end of the front upright post is connected with the front top beam, the upper end of the rear upright post is connected with the rear top beam, the front top beam and the rear top beam are respectively provided with a front connecting support and a rear connecting support, and an adjustable balance piece is connected between the front connecting support and the rear connecting support.
The beneficial effects are as follows: the adjustable balancing piece can be used for adapting to the adjustment of the top beam inclination angle, and the top beam is beneficial to keeping balance in the adjustment process.
Further, the adjustable balance piece is a balance jack.
The beneficial effects are as follows: the balance jack has simple structure and is convenient to realize in the invention.
Furthermore, the front and rear connecting supports are respectively arranged in pairs from left to right, and the two adjustable balance pieces are arranged at intervals in the left-right direction.
The beneficial effects are as follows: the arrangement form of the connecting supports and the number of the adjustable balance pieces are provided to help increase the visual space of the sight channel, so that the adjustable balance pieces or the connecting supports are prevented from blocking the observation of the position and the action of the swing beam by an operator.
Drawings
FIG. 1 is a front view of a hydraulic mount according to an embodiment 1 of the present invention;
FIG. 2 is a left side view (hidden swing beam and compression plate) of a hydraulic mount in an embodiment 1 of the hydraulic mount of the present invention;
FIG. 3 is a right side view of a hydraulic mount (hidden swing beam and compression plate) in an embodiment 1 of the hydraulic mount of the present invention;
fig. 4 is a perspective view (with the swing beam and the compression plate hidden) of a hydraulic mount according to embodiment 1 of the present invention;
FIG. 5 is a schematic structural view of a guide post in embodiment 1 of the hydraulic mount of the present invention;
in the figure: 1-base, 2-front column, 3-rear column, 4-swing beam, 5-compacting plate, 6-swing beam jack, 7-front top beam, 8-rear top beam, 9-articulated shaft, 10-guide column, 11-scraper conveyor, 12-piston cylinder, 13-piston rod, 14-connecting seat, 15-connecting lug, 16-sleeve, 17-front connecting support, 18-rear connecting support and 19-balance jack.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
in the present embodiment, the present invention is explained by taking the example of filling the hydraulic bracket, but it is needless to say that in other embodiments, the hydraulic bracket may be a general hydraulic bracket, that is, a hydraulic bracket of a tamping mechanism not provided at the rear end.
As shown in fig. 1 to 4, in the present embodiment, the hydraulic support includes a base 1 and a top beam, the top beam is located above the base 1, a column is disposed between the base 1 and the top beam, the column includes a front column 2 and a rear column 3 disposed at an interval in a front-rear direction, the front column 2 is provided with two columns and is arranged in pair in a left-right direction, and the rear column 3 is also provided with two columns and is arranged in pair in the left-right direction. The base rear end is provided with the tamping mechanism who articulates on base 1, and tamping mechanism includes swing beam 4 and the compacting plate 5 of setting on swing beam 4, and compacting plate 5 can stretch out and draw back along swing beam 4 length direction under the drive of pneumatic cylinder to the propelling movement material, back timber rear end hangs in swing beam 4 top and establishes scraper conveyor 11. And a swing beam jack 6 is further arranged between the swing beam 4 and the top beam, two swing beam jacks 6 are arranged at intervals in pairs in the left-right direction, and the swing beam 4 and the compacting plate 5 can swing up and down under the action of the swing beam jack 6 so as to tamp the waste rock below the swing beam 4 and the compacting plate 5 and tamp the filling material within the full mining height range.
In this embodiment, as shown in fig. 1 and 4, the top beams include a front top beam 7 and a rear top beam 8 arranged in a front-rear direction, and the front top beam 7 and the rear top beam 8 are hinged together by a hinge shaft 9 extending in a left-right direction. The lower end of the front upright post 2 is hinged on the base 1, the upper end is hinged on the front top beam 7, the front top beam 7 is used for supporting, the lower end of the rear upright post 3 is hinged on the base 1, the upper end is hinged on the rear top beam 8, the rear top beam 8 is used for supporting, the rear top beam 8 is driven to ascend and descend, the front upright post 2 and the rear upright post 3 are telescopic upright posts, the front top beam 7 and the rear top beam 8 can be respectively driven to ascend and descend, the front top beam 7 and the rear top beam 8 can be respectively formed into non-zero included angles with the horizontal plane, the top rock strata with different heights can be adapted.
In this embodiment, as shown in fig. 1 and 2, a guide post 10 is further disposed between the base 1 and the top beam, as the name suggests, the guide post is a columnar structure having a guiding function, in this embodiment, the guide post includes three sections, adjacent sections are in guiding fit in the up-down direction, and are flexible in following manner when the top beam goes up and down. The guide columns 10 are guided to stretch in the up-down direction, the part connected with the guide columns 10 on the top beam can be ensured to move in the up-down direction in a guiding mode, the two guide columns 10 are arranged at intervals in the left-right direction, a front-back transparent sight channel is reserved between the two guide columns 10, operation workers located on the front side can observe the swing state and the swing position of the swing beam 4 on the rear portion of the hydraulic support conveniently, collision and interference between the swing beam 4 and a conveyor or other related structures on the rear portion of the hydraulic support in the swing process are avoided, normal work of the hydraulic support is facilitated, the swing beam jacks 6 are arranged in pairs and are arranged at intervals in the left-right direction, the visual space of the sight channel can be enlarged, and the swing beam jacks 6 are prevented from influencing monitoring of the motion state of the operation workers on the swing beam 4 on the rear portion.
In the present embodiment, as shown in fig. 1 and 4, each guide post 10 is located between the front pillar 2 and the rear pillar 3 on the corresponding side in the front-rear direction, and the front pillar 2, the rear pillar 3 on the corresponding side correspond to the guide post 10 in the front-rear direction, so that a sight line channel with a large range is reserved between the left and right guide posts 10, a rear side area that an operator can observe through the sight line channel can be enlarged, a swing range of the swing beam 4 can be enlarged, and the working efficiency of the hydraulic bracket can be improved.
In this embodiment, as shown in fig. 5, the guide post 10 is a piston structure, the guide post 10 includes a piston cylinder 12 and a piston rod 13 slidably assembled with the piston cylinder 12 in a guiding manner, an overhanging end of the piston cylinder 12 is fixed on the base 1, and an overhanging end of the piston rod 13 is fixed on the top beam.
Specifically, as shown in fig. 4, a fixing groove is formed in the base 1, the fixing groove is a circular groove with an upward opening, the fixing groove is used for being inserted and matched with the piston cylinder 12 to ensure that the piston cylinder 12 can be stably and reliably fixed on the base, connecting seats 14 are formed on a groove edge of the fixing groove, the connecting seats 14 are arranged at intervals along the circumferential direction of the fixing groove, correspondingly, connecting lugs 15 are arranged on the outer circumferential wall of the piston cylinder 12, the connecting lugs 15 are arranged in one-to-one correspondence with the connecting seats 14 along the circumferential direction of the piston cylinder 12, each connecting lug 15 is arranged in pairs and is respectively located on two sides of the connecting seat 14, each connecting lug 15 and the corresponding connecting seat 14 are respectively provided with a horizontal through hole, the horizontal through hole on the connecting lug 15 is coaxially arranged with the horizontal through hole on the corresponding connecting seat 14, the connecting seat 14 is connected with the connecting lug 15 through a, thereby ensuring the reliable fixed connection of the piston cylinder 12 of the guide post 10 and the base 1.
As shown in fig. 5, a sleeve 16 is disposed at the overhanging end of the piston rod 13, the axis of the sleeve 16 is perpendicular to the axis of the piston rod 13, and the sleeve 16 is sleeved on the hinge shaft 9 between the front top beam 7 and the rear top beam 8 to realize the fixed connection between the overhanging end of the piston rod 13 and the top beam and realize the guiding balance effect of the guide post 10 on the top beam.
In this embodiment, as shown in fig. 1 and fig. 2, a front connecting support 17 protruding downward is provided on the front top beam 7, the front connecting support 17 is located at the rear side of the front upright 2, a rear connecting support 18 protruding downward is provided on the rear top beam 8, the rear connecting support 18 is located at the front side of the rear upright 3, an adjustable balancing member is connected between the front connecting support 17 and the rear connecting support 18, in this embodiment, the adjustable balancing member is a balancing jack 19, two ends of the balancing jack 19 are both fixedly connected with the corresponding front connecting support 17 and the corresponding rear connecting support 18 through a pin shaft, and an axis of the pin shaft extends in the left-right direction. The arrangement of the adjustable balancing piece can be used for adaptively automatically adjusting or manually adjusting the length when the front top beam 7 and the rear top beam 8 are arranged at an included angle, so that the front top beam and the rear top beam can keep the balance of the whole top beam in the angle adjusting process.
In this embodiment, as shown in fig. 2, there are two adjustable balance members 8, there are two corresponding front connecting supports 17 and two corresponding rear connecting supports 18, and the two adjustable balance members are arranged at intervals in the left-right direction of the hydraulic bracket, and the two adjustable balance members are located between the two guide posts 10, and because the adjustable balance members have a certain height, they do not affect the observation of the swing state of the swing beam 4 at the rear of the hydraulic bracket by the operating worker located at the front side.
it differs from the specific example 1 in that: in two guide posts of left and right direction interval arrangement, be located left guide post and be located the right side that corresponds side front column, the guide post that is located the right side is located the left side to corresponding side front column, distance between two guide posts is less than the distance between two front columns promptly, penetrating realization passageway around this kind of structure setting also can forming between two guide posts, be convenient for front side operation workman is to the observation of hydraulic support rear portion swing beam swing state, avoid swing beam and hydraulic support rear end structure and other relevant structures to collide and interfere, help hydraulic support's normal work.
In other embodiments, when the dimension of the base in the left-right direction is greater than the dimension of the top beam in the left-right direction, and the hinge shaft connected between the front top beam and the rear top beam is arranged in a protruding manner in the left-right direction, the guide pillar on the left side can be further arranged on the left side of the front upright on the left side, and the guide pillar on the right side can be arranged on the right side of the front upright on the right side, that is, the distance between the two guide pillars is greater than the distance between the two front uprights.
it differs from the specific example 1 in that: the left guide posts are two and are respectively positioned at the front side and the rear side of the front upright post and the rear upright post, and the right guide posts are two and are respectively positioned at the front side and the rear side of the front upright post and the rear upright post.
Specific embodiment 4 of the hydraulic mount of the present invention:
it differs from the specific example 1 in that: the upper ends of the two guide posts are fixed on the front top beam and are connected with the front top beam through pin shafts extending in the left and right directions.
In other embodiments, the rear ends of the two guide pillars are fixed on the rear top beam and connected with the rear top beam through a pin shaft extending in the left-right direction.
it differs from the specific example 1 in that: the guide post includes two mutual plug bush square sleeves, and the square telescopic lower extreme cartridge of upside is in the square sleeve of downside, and the square telescopic upper end of upside articulates on the articulated shaft, and the square telescopic lower extreme of downside is fixed on the base.
In other embodiments, the lower square sleeve may also be welded directly to the base.
Specific example 6 of the hydraulic mount of the present invention:
it differs from the specific example 1 in that: the guide post comprises two sections, each section is matched in a guiding mode in the up-down direction and stretches out and draws back along with the top beam when the top beam is lifted.
In other embodiments, the number of the sections of the guide columns can be four or more than five, and the adjacent sections are in guide fit in the vertical direction and stretch along with the lifting of the top beam.
Specific example 7 of the hydraulic mount of the present invention:
it differs from the specific example 1 in that: the guide post is the pneumatic cylinder, and the pneumatic cylinder includes cylinder body and piston rod, and bolt and base fixed connection are passed through to the cylinder body bottom, and the top of piston rod is provided with the sleeve, and telescopic axis arranges with the piston rod axis is perpendicular, and the sleeve suit is on the articulated shaft between front top beam and back top beam to realize the fixed connection of piston rod overhang end and back beam. The hydraulic support comprises a hydraulic control oil way system which is matched with the hydraulic cylinder. The hydraulic control oil circuit system can realize the switching between normal pressure oil and high pressure oil in the hydraulic cylinder, when the guide post is required to play a certain supporting role on the top beam, the hydraulic cylinder is filled with oil and pressurized, and the hydraulic cylinder and the front and rear upright posts support the top beam together; when the hydraulic cylinder does not need to play a supporting role, namely, only plays a guiding role, the hydraulic cylinder is connected with common hydraulic oil, and at the moment, the cylinder body and the piston rod of the hydraulic cylinder stretch and retract along with the lifting action of the top beam in a guiding way.
it differs from the specific example 1 in that: the fixed slot is not arranged on the base, the connecting lug is arranged on the outer peripheral face of the overhanging end of the piston cylinder and is arranged along the circumferential interval of the piston cylinder, bolt perforation is arranged on the connecting lug along the upper direction and the lower direction, a threaded hole which is coaxially arranged with the bolt perforation is arranged on the base corresponding to the connecting lug, and the bolt penetrates through the bolt perforation on the connecting lug and is fixedly connected with the bolt hole so as to realize the fixed connection of the piston cylinder and the base.
Specific embodiment of the hydraulic mount of the present invention 9:
it differs from the specific example 1 in that: the back timber formula structure as an organic whole is provided with the lug on the back timber, and the piston rod of guide post is connected with the lug of back timber through the round pin axle on the horizontal direction along.
it differs from the specific example 1 in that: the adjustable balance member is provided with one, and the front connecting support and the rear connecting support are both located at the middle position of the top beam in the left-right direction, so that the adjustable balance member is located at the middle position.
In other embodiments, three, four or more than five adjustable balance pieces can be further provided, and each adjustable balance piece is arranged at intervals in the left and right direction of the top beam to adapt to the adjustment of the angle of the top beam and ensure the balance of the top beam in the left and right direction.
Specific embodiment of the hydraulic mount of the present invention 11:
it differs from the specific example 1 in that: the adjustable horizontal part comprises a double-head screw rod, the front and the rear connecting supports are respectively hinged with a threaded sleeve, two ends of the double-head screw rod are respectively screwed in the threaded sleeves, the screw rod is rotated, and the extension or the shortening of the length of the screw rod connected between the front connecting support and the rear connecting support can be realized. The lead screw is beneficial to the transmission of force between the front top beam and the rear top beam, and the strength requirement on the articulated shaft is reduced.
Specific example of the hydraulic mount of the present invention 12:
it differs from the specific example 1 in that: the swing beam jack is arranged at the middle position of the left and right directions of the rear top beam, the swing beam is higher in position, and monitoring of the hydraulic bracket rear end swing beam motion state by hydraulic direct front side operators can be avoided.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. A hydraulic mount, comprising:
a base;
a top beam;
the upright columns comprise a front upright column and a rear upright column which are paired left and right, and the front upright column and the rear upright column are telescopic upright columns;
the two ends of the front and rear upright posts are respectively connected to the base and the top beam, and the top beam is driven to lift when the front and rear upright posts stretch;
it is characterized by also comprising:
the guide posts are arranged in pairs from left to right, the upper end and the lower end of each guide post are respectively connected with the base and the top beam, and the guide posts stretch in the up-down direction when the top beam is lifted;
the left and right guide posts are arranged at intervals, and a sight passage which is through from front to back is reserved between the left and right guide posts.
2. The hydraulic mount of claim 1, wherein the left and right guide posts correspond to the front and rear posts in the fore-and-aft direction.
3. The hydraulic mount of claim 1, wherein the left and right guide posts are located between the front and rear posts on the respective sides.
4. The hydraulic support of claim 3, wherein the top beams comprise front and rear top beams hinged by a horizontal axis, the upper ends of the front uprights are connected with the front top beams, the upper ends of the rear uprights are connected with the rear top beams, and the upper ends of the guide posts are connected with the hinge shafts of the front and rear top beams.
5. A hydraulic support according to any one of claims 1 to 4, characterised in that the guide post is of a piston construction comprising a piston cylinder and a piston rod slidably guided in the piston cylinder, one of the piston cylinder and the piston rod being connected to the base and the other to the top beam.
6. The hydraulic support according to claim 5, wherein the base has a fixing groove, the lower end of the piston cylinder is inserted into the fixing groove and assembled together in a vertically fixed manner, and the piston rod is connected to the top beam.
7. The hydraulic prop according to claim 6, wherein the groove edge of the fixing groove is provided with a connecting seat, the outside of the piston cylinder is provided with a connecting lug, the connecting lug and the connecting seat are correspondingly provided with horizontal through holes, and the connecting lug and the connecting seat are fixedly assembled in the up-down direction through a pin bolt inserted in the horizontal through hole.
8. The hydraulic support according to any one of claims 1 to 4, wherein the guide post is a hydraulic cylinder, one of a cylinder body and a piston rod of the hydraulic cylinder is fixedly connected with the base, and the other is connected with the top beam, the hydraulic support further comprises a hydraulic control oil circuit system matched with the hydraulic cylinder, the hydraulic control oil circuit system charges oil into the hydraulic cylinder to pressurize when the hydraulic cylinder is required to provide support, and when the hydraulic cylinder is required to provide guide, the hydraulic cylinder is connected with normal pressure and the cylinder body and the piston rod stretch along with each other when the top beam is lifted.
9. The hydraulic support according to any one of claims 1 to 3, wherein the top beam comprises a front top beam and a rear top beam hinged through a horizontal axis, the upper end of the front upright post is connected with the front top beam, the upper end of the rear upright post is connected with the rear top beam, the front top beam and the rear top beam are respectively provided with a front connecting support and a rear connecting support, and an adjustable balancing piece is connected between the front connecting support and the rear connecting support.
10. A hydraulic mount according to claim 9 wherein the adjustable counterbalance is a counterbalance jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010312565.9A CN111577349A (en) | 2020-04-20 | 2020-04-20 | Hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010312565.9A CN111577349A (en) | 2020-04-20 | 2020-04-20 | Hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111577349A true CN111577349A (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010312565.9A Pending CN111577349A (en) | 2020-04-20 | 2020-04-20 | Hydraulic support |
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| CN (1) | CN111577349A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137261A (en) * | 2021-05-31 | 2021-07-20 | 天津鹏程誉泰液压支架有限公司 | Three-stage telescopic mechanism with two symmetrically arranged groups of guide rods for hydraulic support |
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2020
- 2020-04-20 CN CN202010312565.9A patent/CN111577349A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137261A (en) * | 2021-05-31 | 2021-07-20 | 天津鹏程誉泰液压支架有限公司 | Three-stage telescopic mechanism with two symmetrically arranged groups of guide rods for hydraulic support |
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