CN202788902U - Thrust gear capable of providing effective torque and low coal seam hydraulic support - Google Patents
Thrust gear capable of providing effective torque and low coal seam hydraulic support Download PDFInfo
- Publication number
- CN202788902U CN202788902U CN 201220491068 CN201220491068U CN202788902U CN 202788902 U CN202788902 U CN 202788902U CN 201220491068 CN201220491068 CN 201220491068 CN 201220491068 U CN201220491068 U CN 201220491068U CN 202788902 U CN202788902 U CN 202788902U
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- Prior art keywords
- hinged
- junction plate
- pusher rod
- shape junction
- connecting plate
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Abstract
The utility model discloses a thrust gear capable of providing effective torque and a low coal seam hydraulic support. The rear end of the thrust gear is connected with the front end of the middle of a T-shaped connecting plate in a hinged mode. Inclined slot holes which incline outwards from front to back are respectively arranged on two side portions of the T-shaped connecting plate. End faces of the two side portions of the T-shaped connecting plate are arc-shaped faces. Hinged ears are respectively arranged at the rear ends of two split type base seats of the low coal seam hydraulic support. A round hole is formed in each hinged ear. The inclined slot holes in the two side portions of the T-shaped connecting plate are respectively connected with round holes of the hinged ears of the rear ends of the two split type base seats in a hinged mode. A slant which inclines outwards from front to back is arranged on the front portion of each hinged ear. The arc-shaped faces of the two side portions of the T-shaped connecting plate lean against the slant. When the support frame is pulled or pushed to slide under the action of an advancing jack, effective torque can be provided under joint action of inclined slot holes and the side end arc surfaces on the T-shaped connecting plate, and hinged ears and the slant in the rear portion of the base seat, and therefore a successful pull of the split type base seat support frame can be guaranteed.
Description
Technical field
The utility model relates to a kind of hydraulic support for low coal seam, relates in particular to a kind of thrust gear and hydraulic support for low coal seam that effective torque is provided.
Background technology
According to this area is to the criteria for classifying of coal seam thickness at present, 0.8～1.3m is girdle.In the design of Bracket in Thin Coal Seam, owing to be subjected to structural limitations, bracket base generally to be the form of complete split, this form is unfavorable for " trying to stop people from fighting each other " of support undoubtedly.Therefore, how to guarantee that trying to stop people from fighting each other smoothly of split base support just becomes the difficult point of thrust gear and associated components design, also do not have effective technical scheme to solve this difficult problem at present.
The utility model content
The purpose of this utility model provides a kind of thrust gear and hydraulic support for low coal seam that the provided effective torque that the split base support is tried to stop people from fighting each other smoothly can be provided.
The purpose of this utility model is achieved through the following technical solutions:
The thrust gear that effective torque is provided of the present utility model, comprise anterior pusher rod, rear portion pusher rod, be connected with advancing jack between described anterior pusher rod and the rear portion pusher rod, also comprise T shape junction plate, the front end at described T shape junction plate middle part and the rear end of described pusher rod are hinged, the both sides of described T shape junction plate are provided with respectively from front to back outward-dipping plagioclase hole, and the end face of the both sides of described T shape junction plate is arcwall face.
Hydraulic support for low coal seam of the present utility model, comprise two Split type bases, the thrust gear of above-mentioned provided effective torque is provided between described two Split type bases, the rear end of described two Split type bases is respectively equipped with hinged ear, described hinged ear is provided with circular hole, the plagioclase hole of the both sides of described T shape junction plate respectively with the hinged ear of two separate bottom base rear ends on circular hole hinged, the front portion of described hinged ear is provided with outward-dipping from front to back inclined-plane, and the arcwall face of the both sides of described T shape junction plate leans against on the described inclined-plane.
Can be found out by the technical scheme that above-mentioned the utility model provides, the thrust gear of the provided effective torque that the utility model embodiment provides and hydraulic support for low coal seam, owing to comprise T shape junction plate, the front end at T shape junction plate middle part and the rear end of pusher rod are hinged, the both sides of T shape junction plate are provided with respectively from front to back outward-dipping plagioclase hole, and the end face of the both sides of T shape junction plate is arcwall face; The rear end of two Split type bases is respectively equipped with hinged ear, hinged ear is provided with circular hole, the plagioclase hole of the both sides of T shape junction plate respectively with the hinged ear of two separate bottom base rear ends on circular hole hinged, the front portion of hinged ear is provided with outward-dipping from front to back inclined-plane, and the arcwall face of the both sides of T shape junction plate leans against on the inclined-plane.When support during in the effect lower tie frame of advancing jack or pushing and sliding, the hinged ear at the plagioclase hole on the T shape junction plate and side arc surface and base rear portion and inclined-plane synergy can provide larger effective torque, guarantee trying to stop people from fighting each other smoothly of split base support.
Description of drawings
Fig. 1 a is the structural representation of T shape junction plate among the embodiment of the present utility model;
Fig. 1 b is the lateral view of Fig. 1 a;
Fig. 2 is the structural representation of bilateral symmetry split base among the embodiment of the present utility model;
Fig. 3 a is the side structure schematic diagram of thrust gear among the embodiment of the present utility model;
Fig. 3 a is the plane structure schematic diagram of thrust gear among the embodiment of the present utility model;
Fig. 4 is the integral installation distribution structure schematic diagram of thrust gear and base among the embodiment of the present utility model;
Fig. 5 is the stressed schematic diagram of base among the embodiment of the present utility model;
Fig. 6 is the structural representation of the hydraulic support for low coal seam among the embodiment of the present utility model.
The specific embodiment
The below will be described in further detail the utility model embodiment.
The thrust gear that effective torque is provided of the present utility model, its better specific embodiment is:
Comprise anterior pusher rod, rear portion pusher rod, be connected with advancing jack between described anterior pusher rod and the rear portion pusher rod, also comprise T shape junction plate, the front end at described T shape junction plate middle part and the rear end of described pusher rod are hinged, the both sides of described T shape junction plate are provided with respectively from front to back outward-dipping plagioclase hole, and the end face of the both sides of described T shape junction plate is arcwall face.
The middle part of described anterior pusher rod is connected with the piston rod of described advancing jack by fixed axis, and the cylinder body of described advancing jack is connected with described rear portion pusher rod and is fixing.
Hydraulic support for low coal seam of the present utility model, its better specific embodiment is:
Comprise two Split type bases, the thrust gear of above-mentioned provided effective torque is provided between described two Split type bases, the rear end of described two Split type bases is respectively equipped with hinged ear, described hinged ear is provided with circular hole, the plagioclase hole of the both sides of described T shape junction plate respectively with the hinged ear of two separate bottom base rear ends on circular hole hinged, the front portion of described hinged ear is provided with outward-dipping from front to back inclined-plane, and the arcwall face of the both sides of described T shape junction plate leans against on the described inclined-plane.
Specific embodiment, extremely shown in Figure 6 such as Fig. 1:
As described in Fig. 1 a, 1b, T shape junction plate 5---formed by the welding of two block plates, also can be formed by a block plate blanking according to specific design.This plate front is provided with a circular hole, is connected with the thrust gear rear end; The back is arranged with two plagioclase holes 6, links to each other with bearing pin with base.
As shown in Figure 2, base 7 bilateral symmetry, fully split, base 7 rear portions are provided with hinged ear 10, and hinged ear 10 is provided with circular hole 11, and hinged with the plagioclase hole 6 of T shape junction plate 5 respectively, the size of circular hole 11 is consistent with the plagioclase hole 6 of T shape junction plate 5.The front portion of hinged ear 10 is provided with inclined-plane 9.
Shown in Fig. 3 a, 3b, thrust gear is comprised of anterior pusher rod 1, advancing jack 2 and rear portion pusher rod 3, advancing jack and rear portion pusher rod are fixed, anterior pusher rod is welded with fixed axis 4 at the middle part, fix with the piston rod of advancing jack, anterior pusher rod can slided in the pusher rod of rear portion under the advancing jack effect, and pusher rod rear portion, rear portion is provided with hinge hole and T shape junction plate front portion is hinged.
As shown in Figure 4, after base 7 and 5 combinations of T shape junction plate, when " pushing and sliding ", advancing jack cavity of resorption feed liquor, support stretching top board, thrust gear is to 5 one active forces backward of T shape junction plate, connection bearing pin between T shape junction plate 5 and the base 7 is stressed, and transporter is normally advanced.When " trying to stop people from fighting each other ", T shape junction plate by thrust gear 1 be drawn forward into, under two the outside plagioclase holes effects in T shape junction plate rear portion, there is the trend that expands outwardly at the base rear portion.Simultaneously, the external arc in T shape junction plate plagioclase hole contacts with the inclined-plane of the hinged ear clip plate of base, produces higher effective torque.
As shown in Figure 5, when T shape junction plate with after the inclined-plane of the hinged ear clip plate of base contacts, the inclined-plane is formed normal pressure F, establishing horizontal component is F
Level, vertically component is F
Vertically
As shown in Figure 6, the column 12 of support bears roof pressure, is fixed point with base 7 contact points, and the fixed point here is base needling 8 center (see figure 4)s.When the base rear portion expands outwardly, be actually single-base 7 take base needling 8 centers as axial extrinsic deflection, also be base 7 front portions to intrinsic deflection, left and right sides base symmetric deflection, then receive inward whole base 7 front portions, will greatly be conducive to support like this and try to stop people from fighting each other smoothly.
Be example in conjunction with Fig. 5, do following analysis:
Here,
F
JackIt is the pulling force of support advancing jack;
Then, torque
Torque
Torque
L in the practical application
1* tan α is much larger than L
2, therefore by above-mentioned calculating as can be known, T shape junction plate provides larger effective torque for the base rear portion to extrinsic deflection in support is tried to stop people from fighting each other process---and be core of the present utility model.
The above; it only is the better specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. thrust gear that effective torque can be provided, comprise anterior pusher rod, rear portion pusher rod, be connected with advancing jack between described anterior pusher rod and the rear portion pusher rod, it is characterized in that, also comprise T shape junction plate, the front end at described T shape junction plate middle part and the rear end of described pusher rod are hinged, and the both sides of described T shape junction plate are provided with respectively from front to back outward-dipping plagioclase hole, and the end face of the both sides of described T shape junction plate is arcwall face.
2. the thrust gear that effective torque is provided according to claim 1, it is characterized in that, the middle part of described anterior pusher rod is connected with the piston rod of described advancing jack by fixed axis, and the cylinder body of described advancing jack is connected with described rear portion pusher rod and is fixing.
3. hydraulic support for low coal seam, comprise two Split type bases, it is characterized in that, be provided with claim 1 or the 2 described thrust gears that effective torque is provided between described two Split type bases, the rear end of described two Split type bases is respectively equipped with hinged ear, described hinged ear is provided with circular hole, the plagioclase hole of the both sides of described T shape junction plate respectively with the hinged ear of two separate bottom base rear ends on circular hole hinged, the front portion of described hinged ear is provided with outward-dipping from front to back inclined-plane, and the arcwall face of the both sides of described T shape junction plate leans against on the described inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220491068 CN202788902U (en) | 2012-09-24 | 2012-09-24 | Thrust gear capable of providing effective torque and low coal seam hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220491068 CN202788902U (en) | 2012-09-24 | 2012-09-24 | Thrust gear capable of providing effective torque and low coal seam hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788902U true CN202788902U (en) | 2013-03-13 |
Family
ID=47816177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220491068 Withdrawn - After Issue CN202788902U (en) | 2012-09-24 | 2012-09-24 | Thrust gear capable of providing effective torque and low coal seam hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926791A (en) * | 2012-09-24 | 2013-02-13 | 中煤北京煤矿机械有限责任公司 | Thrust gear capable of providing effective torque and hydraulic support of thin coal seal |
-
2012
- 2012-09-24 CN CN 201220491068 patent/CN202788902U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926791A (en) * | 2012-09-24 | 2013-02-13 | 中煤北京煤矿机械有限责任公司 | Thrust gear capable of providing effective torque and hydraulic support of thin coal seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20141224 |
|
| RGAV | Abandon patent right to avoid regrant |