CN217602692U - Hydraulic support shields roof beam rear portion waste rock blocking device - Google Patents
Hydraulic support shields roof beam rear portion waste rock blocking device Download PDFInfo
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- CN217602692U CN217602692U CN202221389142.8U CN202221389142U CN217602692U CN 217602692 U CN217602692 U CN 217602692U CN 202221389142 U CN202221389142 U CN 202221389142U CN 217602692 U CN217602692 U CN 217602692U
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- pin
- round pin
- baffle
- roof beam
- waste rock
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Abstract
The utility model discloses a hydraulic support shields roof beam rear portion waste rock blocking device, including the shield roof beam, the below of shield roof beam is provided with hydraulic support's back connecting rod, two identical baffle fixed blocks that the rear portion interval distance of shield roof beam set up, all set up the first round pin shaft hole that link up about one on every baffle fixed block, the shield roof beam is articulated through round pin axle and waste rock blocking plate, distance between two round pin axles is less than the distance between two baffle fixed orificess, be provided with the last spacer bar that is used for restricting two round pin axles and remove in opposite directions between two round pin axles, be provided with the location structure for the locating pin axle on the waste rock blocking plate, location structure includes the location annular of selling epaxial seting up, be the square backing pin of rectangle with location annular joint and cross-section, and the split pin of pegging graft with the square backing pin end. The utility model discloses the setting is between screen roof beam and back connecting rod to block that the waste rock gushes into the working face through the neutral gear between screen roof beam and the back connecting rod, and simple structure, easy dismounting.
Description
Technical Field
The utility model relates to a thin coal seam support rear portion keeps off cash technical field, concretely relates to XX.
Background
At present, a hydraulic support for a working surface of a thin coal seam cannot be provided with a waste rock blocking rib plate of a conventional support due to structural limitation on a rear connecting rod, so that a large neutral gear exists between the rear connecting rods, and waste rock and broken coal blocks can rush into the working surface through the neutral gear between the rear connecting rods. This not only can damage hydraulic support's components and parts, for the support uses, maintains and increases the burden, still can cause certain potential safety hazard to operating personnel, consequently needs a simple structure easy dismounting's fender waste rock device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: overcome the not enough of existence among the prior art, provide a hydraulic support shield beam rear portion waste rock blocking device, set up between shield beam and back connecting rod to block that the waste rock gushes into the working face through the neutral gear between shield beam and the back connecting rod, and simple structure, easy dismounting.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a hydraulic support shields roof beam rear portion waste rock blocking device, is located hydraulic support's rear portion, including the screen roof beam, the below of screen roof beam is provided with hydraulic support's back connecting rod, two identical baffle fixed blocks that the rear portion interval distance of screen roof beam set up, all set up one on every baffle fixed block and control the first round pin shaft hole that link up, peg graft in the first round pin shaft hole have rather than complex round pin axle, the screen roof beam is articulated through round pin axle and waste rock blocking plate, and the distance between two round pin axles is less than the distance between two baffle fixed holes, is provided with the fender axle strip that is used for restricting two round pin axle phase displacement between two round pin axles, be provided with the location structure who is used for the locating pin axle on the waste rock blocking plate, location structure includes the locating ring groove of seting up on the round pin axle, with locating ring groove joint and the square backing pin of cross-section for the rectangle to and the split pin of square backing pin end grafting.
Furthermore, the vertical section of the baffle fixing block is a right triangle, and a right-angle side of the right triangle is tightly attached to the rear side face of the shield beam.
Furthermore, the positions, corresponding to the two pin shafts, of the top of the waste rock blocking plate are respectively provided with a connecting shaft, a second pin shaft hole is formed in the connecting shaft, the connecting shaft is hinged to the pin shafts through the second pin shaft hole, and the two connecting shafts are located on the outer sides of the two baffle fixing blocks respectively.
Further, the waste rock blocking plate comprises a main baffle of a top fixed connecting shaft and an auxiliary baffle fixed on the upper surface of the main baffle, the main baffle and the auxiliary baffle are identical in shape and are arranged in a staggered mode, the bottom of the auxiliary baffle exceeds the bottom of the main baffle, the top of the auxiliary baffle is arranged at a distance from the top of the main baffle, and the bottom surface of the lower portion of the main baffle is in contact with the top of the rear connecting rod.
Furthermore, two pin shafts are provided with a limit hole along the axial direction on the opposite end surfaces respectively, the limit hole is used for inserting the shaft blocking strip, one end of the shaft blocking strip is inserted into the limit hole on the left pin shaft, and the other end of the shaft blocking strip is inserted into the limit hole on the right pin shaft.
Furthermore, one side fixedly connected with cross-section that the baffle fixed block was kept away from to the connecting axle is the backing pin seat of rectangle, backing pin seat middle part is seted up with round pin axle complex third round pin shaft hole, and the backing pin seat cup joints with the round pin axle through third round pin shaft hole, and the connecting axle is located between backing pin seat and the baffle fixed block.
Further, a locating ring groove matched with a square stop pin is formed in one section of the outer peripheral face, sleeved with the stop pin seat, of the pin shaft, a stop pin jack matched with the square stop pin is formed in the side face of the stop pin seat, the stop pin jack penetrates through the stop pin seat, the square stop pin is inserted into the stop pin jack from one side of the stop pin seat, the stop pin seat is worn out from the other side, the locating ring groove is clamped into the middle portion of the square stop pin, an opening pin hole is formed in one section, worn out of the stop pin seat, of the square stop pin, and the opening pin is inserted into the opening pin hole.
The beneficial effects of the utility model are that: through setting up the waste rock baffle in the neutral gear department between shield beam and back connecting rod, realized preventing that waste rock (or broken coal cinder) from gushing into the effect in the working face through the neutral gear between the back connecting rod, through setting up fender axial braid, square backing pin, positioning ring groove and split pin, improved the steadiness that the waste rock baffle is connected with shield beam, and simple structure, easy dismounting.
Drawings
Fig. 1 is a rear view structure diagram of the present invention;
FIG. 2 is a front view of the positioning structure of the present invention;
fig. 3 is a schematic front view of the baffle fixing block of the present invention;
fig. 4 is a schematic diagram of the structure of the gangue blocking plate of the present invention.
In the figure, 1, a shield beam; 2. a waste rock blocking plate; 3. a pin shaft; 4. a square stop pin; 5. a cotter pin; 6. a stop pin seat; 7. and a shaft blocking strip.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
The embodiment is as follows:
as shown in fig. 1-4, a waste rock blocking device at the rear part of a hydraulic support shield beam is located at the rear part of the hydraulic support, and comprises a shield beam 1, a rear connecting rod of the hydraulic support is arranged below the shield beam 1, two completely same baffle fixing blocks are arranged at the rear part of the shield beam 1 at a distance, the distance is set so as to be more stable, a first pin shaft hole which is through from left to right is arranged on each baffle fixing block, a pin shaft 3 matched with the first pin shaft hole is inserted in the first pin shaft hole, the shield beam 1 is hinged with a waste rock blocking plate 2 through the pin shaft 3, the distance between the two pin shafts 3 is smaller than the distance between the two baffle fixing holes, a blocking shaft strip 7 used for limiting the two pin shafts 3 to move oppositely is arranged between the two pin shafts 3, a positioning structure used for positioning the pin shaft 3 is arranged on the waste rock blocking plate 2, the positioning structure comprises a positioning ring groove arranged on the pin shaft 3, a square blocking pin 4 which is connected with the positioning ring groove in a clamping manner and has a rectangular cross section, and a split pin 5 which is connected with the tail end of the square blocking pin 4 in a plugging manner.
The vertical section of the baffle fixing block is a right triangle, one right-angle side of the right triangle is tightly attached to the rear side face of the shield beam 1, and the baffle fixing block is arranged to be connected with the waste rock blocking plate 2, so that the bearing capacity of the shield beam 1 cannot be reduced.
The positions, corresponding to the two pin shafts 3, of the top of the waste rock blocking plate 2 are respectively provided with a connecting shaft, a second pin shaft hole is formed in the connecting shaft, the connecting shaft is hinged to the pin shafts 3 through the second pin shaft hole, and the two connecting shafts are located on the outer sides of the two baffle fixing blocks respectively.
The waste rock blocking plate 2 comprises a main blocking plate and an auxiliary blocking plate, the top of the main blocking plate is fixedly connected with a connecting shaft, the auxiliary blocking plate is fixed on the upper surface of the main blocking plate, the main blocking plate and the auxiliary blocking plate are in the same shape and are arranged in a staggered mode, the bottom of the auxiliary blocking plate exceeds the bottom of the main blocking plate, the top of the auxiliary blocking plate is arranged at a distance away from the top of the main blocking plate, and the bottom surface of the lower portion of the main blocking plate is in contact with the top of the rear connecting rod; the main baffle and the auxiliary baffle are arranged, so that the impact resistance of the waste rock blocking plate 2 is improved, and lengthened blocking spaces are arranged in a staggered mode.
The opposite end surfaces of the two pin shafts 3 are respectively provided with a limiting hole for the insertion of the blocking shaft strip 7 along the axial direction, one end of the blocking shaft strip 7 is inserted in the limiting hole on the left pin shaft 3, and the other end is inserted in the limiting hole on the right pin shaft 3.
One side fixedly connected with cross-section that the baffle fixed block was kept away from to the connecting axle is the backing pin seat 6 of rectangle, and backing pin seat 6 middle part is seted up with round pin axle 3 complex third round pin shaft hole, and backing pin seat 6 cup joints with round pin axle 3 through third round pin shaft hole, and the connecting axle is located between backing pin seat 6 and the baffle fixed block.
A positioning ring groove matched with the square stop pin 4 is formed in the peripheral surface of one section of the pin shaft 3 sleeved with the stop pin seat 6, a stop pin inserting hole matched with the square stop pin 4 is formed in the side surface of the stop pin seat 6, the stop pin inserting hole penetrates through the stop pin seat 6, the square stop pin 4 is inserted into the stop pin inserting hole from one side of the stop pin seat 6 and penetrates out of the stop pin seat 6 from the other side, the middle part of the square stop pin 4 is clamped into the positioning ring groove, an opening pin hole is formed in one section of the square stop pin 4 penetrating out of the stop pin seat 6, and an opening pin 5 is inserted into the opening pin hole; set up like this and improved the stability of round pin axle 3, be difficult to the pine when waste rock or broken coal impact are received to waste rock board 2 and take off, improve shock resistance, increase life, and simple structure, easy dismounting.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for limiting the same, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a hydraulic support shields roof beam rear portion waste rock blocking device, is located hydraulic support's rear portion, its characterized in that: including shield roof beam (1), the below of shield roof beam (1) is provided with hydraulic support's back connecting rod, two identical baffle fixed blocks that the rear portion interval distance of shield roof beam (1) set up, all set up one on every baffle fixed block and control the first round pin shaft hole that link up, peg graft in the first round pin shaft hole have rather than complex round pin axle (3), shield roof beam (1) is articulated through round pin axle (3) and waste rock blocking plate (2), and the distance between two round pin axles (3) is less than the distance between two baffle fixed orificess, is provided with between two round pin axles (3) and is used for restricting two round pin axles (3) fender axle strip (7) that move in opposite directions, be provided with the location structure who is used for location round pin axle (3) on waste rock blocking plate (2), location structure includes the location annular of seting up on round pin axle (3), with the square backing pin (4) that location annular joint and cross-section are the rectangle to and cotter (5) with the terminal grafting of square backing pin (4).
2. The hydraulic support shield beam rear gangue blocking device of claim 1, wherein: the vertical section of the baffle fixing block is a right triangle, and a right-angle side of the right triangle is tightly attached to the rear side face of the shield beam (1).
3. The hydraulic support shield beam rear gangue blocking device of claim 2, wherein: the position that the top of waste rock blocking plate (2) corresponds two round pin axles (3) is provided with a connecting axle respectively, has seted up second round pin shaft hole on the connecting axle, and the connecting axle passes through second round pin shaft hole and articulates with round pin axle (3), and two connecting axles are located the outside that is located two baffle fixed blocks respectively.
4. The hydraulic support shield beam rear gangue blocking device of claim 3, wherein: the waste rock blocking plate (2) comprises a main baffle of a top fixed connecting shaft and an auxiliary baffle fixed on the upper surface of the main baffle, the main baffle and the auxiliary baffle are identical in shape and are arranged in a staggered mode, the bottom of the auxiliary baffle exceeds the bottom of the main baffle, the top of the auxiliary baffle is arranged at a distance from the top of the main baffle, and the bottom surface of the lower portion of the main baffle is in contact with the top of the rear connecting rod.
5. The hydraulic support shield beam rear gangue blocking device of claim 4, wherein: and the opposite end surfaces of the two pin shafts (3) are respectively provided with a limiting hole for the insertion of the stop shaft strip (7) along the axial direction, one end of the stop shaft strip (7) is inserted into the limiting hole on the left pin shaft (3), and the other end is inserted into the limiting hole on the right pin shaft (3).
6. The hydraulic support shield beam rear gangue blocking device of claim 5, which is characterized in that: one side fixedly connected with cross-section that the baffle fixed block was kept away from to the connecting axle is the catch pin seat (6) of rectangle, catch pin seat (6) middle part seted up with round pin axle (3) complex third round pin shaft hole, catch pin seat (6) cup joint through third round pin shaft hole and round pin axle (3), the connecting axle is located between catch pin seat (6) and the baffle fixed block.
7. The hydraulic support shield beam rear waste rock blocking device of claim 6, characterized in that: round pin axle (3) and one section outer peripheral face that backing pin seat (6) cup jointed offer with square backing pin (4) complex positioning ring groove, the side of backing pin seat (6) is offered with square backing pin (4) complex backing pin jack, and the backing pin jack runs through backing pin seat (6), and square backing pin (4) insert the backing pin jack from one side of backing pin seat (6), wear out backing pin seat (6) from the opposite side, and square backing pin (4) middle part card is gone into positioning ring groove, square backing pin (4) are worn out one section of backing pin seat (6) and are seted up the split pin hole, insert split pin (5) in the split pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221389142.8U CN217602692U (en) | 2022-06-06 | 2022-06-06 | Hydraulic support shields roof beam rear portion waste rock blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221389142.8U CN217602692U (en) | 2022-06-06 | 2022-06-06 | Hydraulic support shields roof beam rear portion waste rock blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217602692U true CN217602692U (en) | 2022-10-18 |
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ID=83588862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221389142.8U Active CN217602692U (en) | 2022-06-06 | 2022-06-06 | Hydraulic support shields roof beam rear portion waste rock blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217602692U (en) |
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2022
- 2022-06-06 CN CN202221389142.8U patent/CN217602692U/en active Active
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