CN202012365U - Hydraulic support with prepositioned positive four bar linkage - Google Patents

Hydraulic support with prepositioned positive four bar linkage Download PDF

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Publication number
CN202012365U
CN202012365U CN2011200961284U CN201120096128U CN202012365U CN 202012365 U CN202012365 U CN 202012365U CN 2011200961284 U CN2011200961284 U CN 2011200961284U CN 201120096128 U CN201120096128 U CN 201120096128U CN 202012365 U CN202012365 U CN 202012365U
Authority
CN
China
Prior art keywords
connecting rod
hinged
back timber
positive
bar linkage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011200961284U
Other languages
Chinese (zh)
Inventor
牛敬业
张连宝
杨红芳
王李平
张永
邵小卫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANDONG TIANSHENG COAL MINE EQUIPMENT CO Ltd
Original Assignee
SHANDONG TIANSHENG COAL MINE EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANDONG TIANSHENG COAL MINE EQUIPMENT CO Ltd filed Critical SHANDONG TIANSHENG COAL MINE EQUIPMENT CO Ltd
Priority to CN2011200961284U priority Critical patent/CN202012365U/en
Application granted granted Critical
Publication of CN202012365U publication Critical patent/CN202012365U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A hydraulic support with a prepositioned positive four bar linkage is characterized in that the support comprises a pedestal, supporting columns, a top beam, a cant beam, an upper connecting rod, a lower connecting rod, a face guard plate and a rear beam; the supporting columns are arranged respectively at the right side and the left side of the pedestal, and are connected with the top beam and the pedestal respectively through pin shafts; the front portion of the top beam is hinged with the face guard plate and is connected with a hydraulic jack; the rear portion of the top beam is hinged with the rear beam and is connected with the hydraulic jack; the center of the top beam is connected with the cant beam via a pin shaft; the upper connecting rod and the lower connecting rod are respectively hinged with the cant beam and the pedestal to together form the four bar linkage. The upper connecting rod and the lower connecting rod are respectively hinged with the cant beam and the pedestal to together form the prepositioned positive four bar linkage. The adoption of the prepositioned positive four bar linkage enables the space between the columns front and back to be adjusted reasonably, and provides enough space for working space arrangement, the whole advance of space and walking of workers. The rear beam and the face guard plate are employed, so that working space is better maintained.

Description

The hydraulic support of preposition positive quadric chain
Technical field
The utility model relates to a kind of hydraulic support of preposition positive quadric chain, belongs to the mining machinery field.
Background technology
Hydraulic support is normally to carry out the necessary support apparatus of coal work under the coal mine.Existing hydraulic support all adopts quadric chain to perform stabilizing mechanism, and quadric chain has two kinds: a kind of be positive quadric chain, a kind of be reverse-four-link-bar mechanism, these two kinds of quadric chains are positioned at the rear portion of hydraulic support.Existing hydraulic support working space is all in the quadric chain front.For requiring the front and rear part that the special support of working space is arranged, as exploitation on one side, on one side the special stand of filling, existing structure design just can not meet the demands.
The utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of and can overcome above-mentioned defective, and preposition positive four connecting rods, the support front and rear all has the hydraulic support of the preposition positive quadric chain of working space.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of hydraulic support of preposition positive quadric chain, it is characterized in that: comprise base, support post, back timber, cant beam, last connecting rod, lower link, face guard and tail boom, support post is arranged on the left and right sides of base, connect back timber and base by bearing pin respectively, the front portion of back timber and face guard are hinged and be connected with hydraulic jack, the rear portion of back timber and tail boom are hinged and be connected with hydraulic jack, the back timber middle part is connected by bearing pin with cant beam, last connecting rod and lower link are hinged with cant beam and base respectively, form quadric chain jointly.
Described back timber adopts whole box structure.
Described tail boom adopts whole box-shaped to become section structure.
The beneficial effect that the utility model had is: go up connecting rod and lower link and be hinged respectively at cant beam and base, the preposition quadric chain of common formation, adopt this preposition quadric chain, front and rear row column spacing is rationally adjusted, and provides enough spaces for the layout of working space and whole reach and personnel walk.By tail boom and face guard are set, can better the maintenance work space.
Description of drawings
Fig. 1 is the utility model structural representation;
Among the figure: 1, face guard; 2, back timber; 3, tail boom; 4, cant beam; 5, go up connecting rod; 6, lower link; 7, support post; 8, base;
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As shown in Figure 1, a kind of hydraulic support of preposition positive quadric chain, comprise base 8, support post 7, back timber 2, cant beam 4, last connecting rod 5, lower link 6, face guard 1 and tail boom 3, support post 7 is arranged on the left and right sides of base 8, connect back timber 2 and base 8 by bearing pin respectively, the front portion of back timber 2 and face guard 1 are hinged and be connected with hydraulic jack, the rear portion of back timber 2 and tail boom 3 are hinged and be connected with hydraulic jack, back timber 2 middle parts and cant beam 4 are connected by bearing pin, last connecting rod 5 and lower link 6 are hinged with cant beam 4 and base 8 respectively, form quadric chain jointly.
Described back timber 2 adopts whole box structure.
Described tail boom 3 adopts whole box-shaped to become section structure.
Back timber 2 adopts whole box structure and is hinged with face guard 1, and intensity is higher, forms the anterior working space when mining.During operation, back timber 2 directly contacts with top board, and roof supporting is one of main load bearing component of support.It mainly acts on and comprising: the load of accepting balkstone and coal; Prop up the support coal repeatedly, can play fragmentation harder top coal; For stope provides enough safe spaces.
Tail boom 3 is hinged with back timber 2 rear portions, is supported by hydraulic jack, and top coal and the top board that falls that collapse after the support reach directly affacts on the tail boom 3, is the critical component of support shielding.It mainly acts on and comprising: support the loosening top board in filling area, safeguard the good operation space; Constitute divider wall, possess good anti-spillage function, for packing job creates conditions.
Because the impact that tail boom 3 will bear balkstone, for guaranteeing to have enough rigidity and intensity, tail boom 3 adopts whole box-shaped to become section structure, forms the Background Job space when being used for packing job with the steel plate welding.
Last connecting rod 5 and lower link 6 are hinged with cant beam 4 and base 8 respectively, the preposition quadric chain of common formation, adopt this preposition quadric chain, front and rear row column spacing is rationally adjusted, and provides enough spaces for the layout of working space and whole reach and personnel walk.

Claims (3)

1. the hydraulic support of a preposition positive quadric chain, it is characterized in that: comprise base, support post, back timber, cant beam, go up connecting rod, lower link, face guard and tail boom, support post is arranged on the left and right sides of base, connect back timber and base by bearing pin respectively, the front portion of back timber and face guard are hinged and be connected with hydraulic jack, the rear portion of back timber and tail boom are hinged and be connected with hydraulic jack, the back timber middle part is connected by bearing pin with cant beam, last connecting rod and lower link are hinged with cant beam and base respectively, form quadric chain jointly.
2. the hydraulic support of preposition positive quadric chain according to claim 1, it is characterized in that: described back timber adopts whole box structure.
3. the hydraulic support of preposition positive quadric chain according to claim 1 is characterized in that: described tail boom adopts whole box-shaped to become section structure.
CN2011200961284U 2011-04-02 2011-04-02 Hydraulic support with prepositioned positive four bar linkage Expired - Lifetime CN202012365U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200961284U CN202012365U (en) 2011-04-02 2011-04-02 Hydraulic support with prepositioned positive four bar linkage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200961284U CN202012365U (en) 2011-04-02 2011-04-02 Hydraulic support with prepositioned positive four bar linkage

Publications (1)

Publication Number Publication Date
CN202012365U true CN202012365U (en) 2011-10-19

Family

ID=44782977

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200961284U Expired - Lifetime CN202012365U (en) 2011-04-02 2011-04-02 Hydraulic support with prepositioned positive four bar linkage

Country Status (1)

Country Link
CN (1) CN202012365U (en)

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CX01 Expiry of patent term
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Granted publication date: 20111019