CN202718694U - Hydraulic bracket with large dip angle - Google Patents
Hydraulic bracket with large dip angle Download PDFInfo
- Publication number
- CN202718694U CN202718694U CN 201220377368 CN201220377368U CN202718694U CN 202718694 U CN202718694 U CN 202718694U CN 201220377368 CN201220377368 CN 201220377368 CN 201220377368 U CN201220377368 U CN 201220377368U CN 202718694 U CN202718694 U CN 202718694U
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- base
- rod
- push rod
- hinged
- hinged ear
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Abstract
The utility model discloses a hydraulic bracket with a large dip angle, which comprises a base and a top beam which is connected with the base through a bracket vertical column, wherein a long push rod of which the front stretching end can be connected with a coal cutter is connected with the base in a sliding way; a front anti-sliding cylinder of which a piston rod is connected with the rear part of the long push rod is further installed on the base; a sleeve is arranged at the back part of the base; a support shaft which can rotate freely and is connected with a rear anti-sliding cylinder is installed inside the sleeve; two tilting prevention cross shafts are respectively installed at the front part and the rear part of the top beam; tilting prevention cylinders are hinged at the two tilting prevention cross shafts at the same side or different sides of the top beam; and tilting prevention chains are installed on piston rods of the tilting prevention cylinders. The hydraulic bracket with the large dip angle has a simple structure and is good in anti-sliding and tilting prevention capability, the stability of the hydraulic bracket with the large dip angle, the adaptability to the dip angle of a working plane and the economy and the security in exploitation are enhanced, and thus the bracket is more applicable to the exploitation of the working plane with the large dip angle coal seam.
Description
Technical field
The utility model relates to a kind of high inclination-angle hydraulic support.
Background technology
The coal seam that has a large amount of high inclination-angles is composed on the ground such as the southern area cloud of China, expensive, river, it is complicated that the high inclination-angle hydraulic support ubiquity the anti-skid measure now, the anti-skid jack can't satisfy the requirement that a step moves frame, support easily falls frame, the device bad adaptability is transferred at the end, the problems such as complicated operation, and production efficiency is low, and labor strength is high, poor safety performance.
The utility model content
The technical problems to be solved in the utility model provides the good high inclination-angle hydraulic support of a kind of anti-inversion performance simple in structure, anti-skidding.
For solving the problems of the technologies described above, high inclination-angle hydraulic support with following design feature is provided: it comprises base and is connected to back timber on the base by bracket upright post, slidely connect the long push rod that anterior extension end can be connected with coal-winning machine on the base, piston rod and the back-connected front anti-skidding oil cylinder of long push rod also are housed on the base, the rear portion of base is provided with sleeve, the bolster that freely rotates and can be connected with rear defence lubricating oil cylinder is housed in the sleeve, and the front and rear of back timber is equipped with respectively two anti-down cross axles.
Be hinged with anti-down oil cylinder on the two anti-down cross axles of the homonymy of back timber or heteropleural, anti-down chain is housed on the piston rod of anti-down oil cylinder.
The postmedian of base is hinged with two front rods and two back links, the rear portion of back timber is hinged with balancing cylinder and cover frame, the piston rod of balancing cylinder is hinged on the postmedian of cover frame, the up extension end of front rod and back link cuts with scissors respectively and is contained on the cover frame, the front portion of back timber is connected with protective screening, and the front side and the rear side that are positioned at bracket upright post on the described base are equipped with respectively the walkway.
Described long push rod comprises front push rod and rear push-rod, and the front end of front push rod is connected with the front engaging lug that can be connected with coal-winning machine, and the rear portion hinge of rear push-rod is contained on the base, and front push rod is connected the rotation-limited device and connects with rear push-rod.
Described rotation-limited device comprises the front hinged ear that is arranged on the front push rod and the rear hinged ear that is arranged on the rear push-rod, rear hinged ear is provided with the slot that inserts for front hinged ear, front hinged ear be connected hinged ear by connecting stud connection, the bottom of rear hinged ear is provided with carriage, is equipped with on the carriage to pass the spacing hinge that connects hinge.
After adopting said structure, anti-skidding oil cylinder is housed on the bolster of adjacent two hydraulic supports, shoe after the anti-skidding employing of support, can satisfy the needs of unit advance, realize with the machine fast-moving bracket, it is anti-skidding that the hinged long push rod guiding of the anterior employing of hydraulic support also can be carried out the front portion, by the downslide of push rod limit bracket front portion.Set cap is provided with anti-down cross axle, connects by anti-down oil cylinder and anti-down chain between the adjacent frame, and each cover before and after the column, anti-inversion performance is good and simple in structure, and it is the pattern that is flexible coupling, and compliance is good.Binary channels before and after support adopts, prepass is fit to not start shooting the walkway, and the rear portion is start main walkway of coal mining stage, and the protector in conjunction with arranging can provide safe and reliable people's row space; Adopt simultaneously the long push rod that the rotation-limited device is set, can effectively reduce the time of the long push rod of workman's maintain and replace, be conducive to realize the high-yield and high-efficiency of work plane, the utility model product had safe and reliable, be applicable to hydraulic support in the normal exploitation of large inclination working surface.
In sum, the utlity model has simple in structure, anti-skidding anti-inversion performance good, strengthened the stability of high inclination-angle support, to the compliance at work plane inclination angle, economy and the safety of exploitation, make support be more suitable for the exploitation of large-inclination-angle coal bed work plane.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is structural representation of the present utility model;
The schematic diagram of Fig. 2 for analysing and observe along A-A line among Fig. 1;
Fig. 3 is the B-B sectional drawing among Fig. 1;
Fig. 4 is the structural representation of long push rod;
Fig. 5 is the top view of Fig. 4.
The specific embodiment
As depicted in figs. 1 and 2, this high inclination-angle hydraulic support comprises base 1 and is connected to back timber 11 on the base by bracket upright post 12, bracket upright post 12 arranges two and be symmetrical arranged altogether, and the more traditional four post support shield type of this employing two column protected type is lightweight, and is good to roof and floor compliance.The rear portion of base 1 is provided with sleeve 3, and the bolster 4 that freely rotates and can be connected with rear defence lubricating oil cylinder is housed in the sleeve 3, namely as shown in Figure 2, rear defence lubricating oil cylinder 17 is housed between the bolster 4 of two adjacent hydraulic supports.As shown in figures 1 and 3, the front and rear of the back timber 11 of each hydraulic support is equipped with respectively two anti-down cross axles 5, be hinged with anti-down oil cylinder 6 on the two anti-down cross axles 5 of the homonymy of back timber 11 or heteropleural, anti-down chain 7 is housed on the piston rod of anti-down oil cylinder 6, anti-down oil cylinder and anti-down chain 7 are housed between the anti-down cross axle 5 between adjacent two hydraulic supports, thereby make two adjacent hydraulic supports form the one that is flexible coupling, effectively carry out anti-down.
As shown in Figure 1, the postmedian of base 1 is hinged with two front rods 14 and two back links 15, the rear portion of back timber 11 is hinged with balancing cylinder 10 and cover frame 13, the piston rod of balancing cylinder 10 is hinged on the postmedian of cover frame 13, the up extension end of front rod 14 and back link 15 cuts with scissors respectively and is contained on the cover frame 13, the front portion of back timber 11 is connected with protective screening 8, and the front side and the rear side that are positioned at bracket upright post 12 on the base 1 are equipped with respectively walkway 16.
Such as Fig. 1, Fig. 4 and shown in Figure 5, slidely connect the long push rod 2 that anterior extension end can be connected with coal-winning machine on the base 1, piston rod and long push rod 2 back-connected front anti-skidding oil cylinders 9 also are housed on the base 1, long push rod 2 comprises front push rod 21 and rear push-rod 22, the front end of front push rod 21 is connected with the front engaging lug 23 that can be connected with coal-winning machine, the rear portion hinge of rear push-rod 22 is contained on the base 1, front push rod 21 is connected with rear push-rod and is connected by the rotation-limited device, the piston rod hinge of above-mentioned front anti-skidding oil cylinder 9 is contained in the rearward end of rear push-rod 22, this rotation-limited device comprises the front hinged ear 24 that is arranged on the front push rod 21 and the rear hinged ear 25 that is arranged on the rear push-rod 22, rear hinged ear 25 is provided with the slot that inserts for front hinged ear 24, front hinged ear 24 be connected hinged ear 25 and connect by connecting hinge 26, the bottom of rear hinged ear 25 is provided with carriage 27, is equipped with on the carriage 27 to pass the spacing hinge 28 that connects hinge 26.The fit structure of front hinged ear 24 and rear hinged ear 25 can effectively limit the swing of the horizontal direction of front push rod 21 and rear push-rod 22, spacing hinge 28 effective swing that has limited front push rod 21 and rear push-rod 22 vertical directions is set.
Claims (5)
1. high inclination-angle hydraulic support, comprise base (1) and be connected to back timber (11) on the base by bracket upright post (12), it is characterized in that: slidely connect the long push rod (2) that anterior extension end can be connected with coal-winning machine on the base (1), piston rod and the back-connected front anti-skidding oil cylinder of long push rod (2) (9) also are housed on the base (1), the rear portion of base (1) is provided with sleeve (3), the bolster (4) that freely rotates and can be connected with rear defence lubricating oil cylinder is housed in the sleeve (3), and the front and rear of back timber (11) is equipped with respectively two anti-down cross axles (5).
2. high inclination-angle hydraulic support according to claim 1 is characterized in that: be hinged with anti-down oil cylinder (6) on the two anti-down cross axles (5) of the homonymy of back timber (11) or heteropleural, anti-down chain (7) is housed on the piston rod of anti-down oil cylinder (6).
3. high inclination-angle hydraulic support according to claim 1, it is characterized in that: the postmedian of base (1) is hinged with two front rods (14) and two back links (15), the rear portion of back timber (11) is hinged with balancing cylinder (10) and cover frame (13), the piston rod of balancing cylinder (10) is hinged on the postmedian of cover frame (13), the up extension end of front rod (14) and back link (15) cuts with scissors respectively and is contained on the cover frame (13), the front portion of back timber (11) is connected with protective screening (8), and the front side and the rear side that are positioned at bracket upright post (12) on the described base (1) are equipped with respectively walkway (16).
4. each described high inclination-angle hydraulic support according to claim 1-3, it is characterized in that: described long push rod (2) comprises front push rod (21) and rear push-rod (22), the front end of front push rod (21) is connected with the front engaging lug (23) that can be connected with coal-winning machine, the rear portion hinge of rear push-rod (22) is contained on the base (1), and front push rod (21) is connected 22 with rear push-rod) connect by the rotation-limited device.
5. high inclination-angle hydraulic support according to claim 4, it is characterized in that: described rotation-limited device comprises the front hinged ear (24) that is arranged on the front push rod (21) and is arranged on rear hinged ear (25) on the rear push-rod (22), rear hinged ear (25) is provided with the slot that inserts for front hinged ear (24), front hinged ear (24) be connected hinged ear (25) and connect by connecting hinge (26), the bottom of rear hinged ear (25) is provided with carriage (27), is equipped with on the carriage (27) to pass the spacing hinge (28) that connects hinge (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377368 CN202718694U (en) | 2012-08-01 | 2012-08-01 | Hydraulic bracket with large dip angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377368 CN202718694U (en) | 2012-08-01 | 2012-08-01 | Hydraulic bracket with large dip angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718694U true CN202718694U (en) | 2013-02-06 |
Family
ID=47620520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220377368 Expired - Fee Related CN202718694U (en) | 2012-08-01 | 2012-08-01 | Hydraulic bracket with large dip angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173290A (en) * | 2019-07-02 | 2019-08-27 | 重庆市能源投资集团科技有限责任公司 | A kind of hydraulic support for high-dipping stope face |
-
2012
- 2012-08-01 CN CN 201220377368 patent/CN202718694U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173290A (en) * | 2019-07-02 | 2019-08-27 | 重庆市能源投资集团科技有限责任公司 | A kind of hydraulic support for high-dipping stope face |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20150801 |
|
| EXPY | Termination of patent right or utility model |