CN202882971U - Hinge type push rod - Google Patents
Hinge type push rod Download PDFInfo
- Publication number
- CN202882971U CN202882971U CN 201220377553 CN201220377553U CN202882971U CN 202882971 U CN202882971 U CN 202882971U CN 201220377553 CN201220377553 CN 201220377553 CN 201220377553 U CN201220377553 U CN 201220377553U CN 202882971 U CN202882971 U CN 202882971U
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- push rod
- rod
- push
- side plate
- face
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Abstract
The utility model discloses a hinge type push rod which comprises a front push rod and a rear push rod. The front ends of two side plates of the rear push rod are respectively provided with a jack. The rear ends of two side plates of the front push rod are respectively hinged in the two jacks. The hinged place of the front push rod and the rear push rod is provided with a limit device, wherein the upward flip angle of the front push rod is greatly larger than the downward flip angle of the limit device under the condition that the rear push rod is not moved. Due to the fact that the hinged place of the front push rod and the rear push rod is provided with the limit device, wherein the upward flip angle of the front push rod is greatly larger than the downward flip angle of the limit device under the condition that the rear push rod is not moved, the downward flip angle of the front push rod is very small when an oil cylinder works. Accordingly, the movable deflection amount of the push rod is effectively controlled and the push rod is not prone to deformation. In addition, the guidance quality of the push rod is guaranteed, and the displacement can be achieved conveniently.
Description
Technical field
The utility model relates to a kind of support apparatus in coal mine, particularly relates to a kind of radial type push rod.
Background technology
Common long push rod is little compared to the short push rod amount of deflecting, and is conducive to control the inclined cut scrapper conveyor and glides.But long push rod is difficult for repair and replacement, although and the long push rod of radial type is convenient to dismounting, but conventional articulated manner causes front push rod and rear push-rod to rotate centered by both pin joints, when oil cylinder is regained, the freedom of movement of front push rod is large, affect the guidance quality of push rod, push rod is out of shape easily, is unfavorable for the realization of passing.
Summary of the invention
The technical problems to be solved in the utility model provides little, the adaptable radial type push rod of a kind of movable beat amount.
For solving the problems of the technologies described above, the utility model comprises front push rod and rear push-rod, the front end of rear push-rod biside plate is respectively equipped with socket, the rear end of front push rod biside plate is hinged on respectively in two sockets, and its design feature is that described front push rod and rear push-rod hinged place are provided with in the motionless situation of rear push-rod, the resupinate angle of front push rod is much larger than its downward stopping means of the angle of upset.
After adopting said structure, because front push rod and rear push-rod hinged place are provided with in the motionless situation of rear push-rod, the resupinate angle of front push rod is much larger than the stopping means of its angle of overturning downwards, when oil cylinder is worked, the downward flip angle of front push rod is very little, effectively control the movable beat amount of push rod, push rod is not easy distortion, and has guaranteed the guidance quality of push rod, is beneficial to the realization of passing.
Described stopping means comprises the bottom surface of front push rod side plate rear end end face and socket, the bottom of front push rod side plate rear end end face is for facing directly, top is the arcwall face with front push rod side plate end face rounding off, the bottom surface of socket is for facing directly, because end face top, front push rod side plate rear end is arcwall face, the resupinate angle of front push rod is larger, because the bottom of front push rod side plate rear end end face is for facing directly, its bottom, side plate rear end can be attached to the socket bottom surface when current push rod overturn very low-angle downwards centered by pin joint, the socket bottom surface stops that front push rod continues upset downwards, thereby is implemented in the motionless situation of rear push-rod, the resupinate angle of front push rod is much larger than its angle of overturning downwards.
Described stopping means comprises the bottom surface of front push rod side plate rear end end face and socket, front push rod side plate rear end end face is for facing directly, the socket bottom surface is the inclined plane that tilts to the rear push-rod front lower, because the top of front push rod side plate rear end end face and the gap of socket bottom surface are far longer than the bottom of front push rod side plate rear end end face and the gap of socket bottom surface, before the resupinate angle of push rod much larger than its downward angle of upset, its bottom, side plate rear end was attached to the socket bottom surface when current push rod overturn very low-angle downwards centered by pin joint, and the socket bottom surface stops that front push rod continues upset downwards.
The rear end of described front push rod biside plate is hinged by the bearing pin and the rear push-rod that run through two sockets.
Described bearing pin comprises middle bearing pin and two side bearing pins.
Described rear push-rod front bottom end is provided with the fixed head that forwards stretches out, fixed head be provided with stretch on two and perpendicular to the fixedly ear seat of bearing pin that is used for of rear push-rod side plate, the ear seat is provided with fixed pin holes.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural representation of the another kind of embodiment of the utility model;
Fig. 4 is use state diagram of the present utility model.
The specific embodiment
As shown in Figures 1 to 4, the radial type push rod comprises front push rod 1 and rear push-rod 2, the front end of rear push-rod biside plate 4 is respectively equipped with socket, the rear end of front push rod biside plate 3 is hinged on respectively in two sockets, and front push rod 1 and rear push-rod 2 hinged places are provided with in the motionless situation of rear push-rod 2, front push rod 1 resupinate angle is much larger than its downward stopping means of the angle of upset.Rear push-rod 2 front ends are respectively equipped with articulated slab 5, two articulated slabs 5 that stretch out side plate 4 end faces and form socket with side plate 4 end faces in the both sides of every side plate 4, the end face of side plate 4 forms the bottom surface of socket.The rear end of front push rod biside plate 3 is hinged by the bearing pin and the rear push-rod 2 that run through two sockets, and bearing pin comprises middle bearing pin 10 and two side bearing pins 9.Rear push-rod 2 front bottom end are provided with the fixed head 7 that forwards stretches out, fixed head 7 be provided with stretch on two and perpendicular to the fixedly ear seat 8 of bearing pin 10 that is used for of rear push-rod side plate 4, ear seat 8 is symmetricly set on the line both sides of rear push-rod biside plate 4 hinge holes, ear seat 8 is provided with fixed pin holes, being centered close on the same level face of the center of fixed pin holes and hinge hole.
As shown in Figure 1, stopping means comprises the bottom surface of front push rod side plate 3 rear end end faces and socket, the bottom of front push rod side plate 3 rear end end faces is for facing directly, top is the arc surface with front push rod side plate 3 end face rounding ofves, the height of facing directly is less than or equal to the height at rear push-rod 2 bottom surfaces to hinge hole center, the bottom surface of socket is for facing directly, because end face top, front push rod side plate 3 rear end is arc surface, any point to the distance of pin joint equates on this section end face, push rod 1 resupinate angle is larger before the institute, because the bottom of front push rod side plate 3 rear end end faces is for facing directly, its bottom, side plate 3 rear ends can be attached to the socket bottom surface when current push rod 1 overturn very low-angle downwards centered by pin joint, the socket bottom surface stops that front push rod 1 continues upset downwards, thereby is implemented in the motionless situation of rear push-rod 2, front push rod 1 resupinate angle is much larger than its angle of overturning downwards.As shown in Figure 3, the structure of stopping means also can be: front push rod side plate 3 rear end end faces are for facing directly, the socket bottom surface is the inclined plane that tilts to rear push-rod 2 front lower, be that the distance of socket bottom surface bottom end points and pin joint is less than the distance of socket bottom surface top end points and pin joint, because the top of front push rod side plate 3 rear end end faces and the gap of socket bottom surface are far longer than the bottom of front push rod side plate 3 rear end end faces and the gap of socket bottom surface, before push rod 1 resupinate angle much larger than its downward angle of upset, its bottom, side plate 3 rear ends was attached to the socket bottom surface when current push rod 1 overturn very low-angle downwards centered by pin joint, and the socket bottom surface stops that front push rod 1 continues upset downwards.
During use, first front push rod side plate 3 is inserted in the socket, with side bearing pin 9 front push rod side plate 3 is connected as a single entity with socket respectively, middle bearing pin 10 is placed on the fixed head 7, then pass successively pin dress hole with fixed pin shaft 11, the fixed pin holes of middle bearing pin, the pin dress hole of opposite side, thereby middle bearing pin 10 is fixed on the fixed head 7, bearing pin 10 and side bearing pin 9 is located along the same line and the length of middle bearing pin 10 just in time equals spacing between the both sides bearing pin 9 in this moment, thereby by installing middle bearing pin 10 additional that both sides bearing pin 9 is fixing, middle bearing pin 10 is provided with handle 12, the dismounting of bearing pin 10 in the convenience.First middle bearing pin 10 is taken off during dismounting, then just can easily side bearing pin 9 be dismantled, thereby solve the not easily detachable difficult problem of the narrow and small bearing pin of operating surface.Because front push rod 1 and rear push-rod 2 hinged places are provided with in the motionless situation of rear push-rod 2, front push rod 1 resupinate angle is much larger than its downward stopping means of the angle of upset, when oil cylinder 6 work, front push rod 1 downward flip angle is very little, effectively control the movable beat amount of push rod, push rod is not easy distortion, and guaranteed the guidance quality of push rod to be beneficial to the realization of passing.And the utility model is convenient to dismounting, can effectively reduce time of workman's maintain and replace push rod, is conducive to realize the high-yield and high-efficiency of work plane.
Claims (6)
1. radial type push rod, comprise front push rod (1) and rear push-rod (2), the front end of rear push-rod biside plate (4) is respectively equipped with socket, the rear end of front push rod biside plate (3) is hinged on respectively in two sockets, it is characterized in that described front push rod (1) and rear push-rod (2) hinged place are provided with in the motionless situation of rear push-rod (2), the resupinate angle of front push rod (1) is much larger than its downward stopping means of the angle of upset.
2. radial type push rod according to claim 1, it is characterized in that described stopping means comprises the bottom surface of front push rod side plate (3) rear end end face and socket, the bottom of front push rod side plate (3) rear end end face for face directly, top for and the arcwall face of front push rod side plate (3) end face rounding off, the bottom surface of socket is for facing directly.
3. radial type push rod according to claim 1, it is characterized in that described stopping means comprises the bottom surface of front push rod side plate (3) rear end end face and socket, front push rod side plate (3) rear end end face is for facing directly, and the socket bottom surface is the inclined plane that tilts to the rear push-rod front lower.
4. according to claim 1 to 3 each described radial type push rods, it is characterized in that the rear end of described front push rod biside plate (3) is hinged by the bearing pin and the rear push-rod (2) that run through two sockets.
5. radial type push rod according to claim 4 is characterized in that described bearing pin comprises middle bearing pin (10) and two side bearing pins (9).
6. radial type push rod according to claim 5, it is characterized in that described rear push-rod (2) front bottom end is provided with the fixed head (7) that forwards stretches out, fixed head (7) be provided with stretch on two and perpendicular to the fixedly ear seat (8) of bearing pin (10) that is used for of rear push-rod side plate (4), ear seat (8) is provided with fixed pin holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377553 CN202882971U (en) | 2012-08-01 | 2012-08-01 | Hinge type push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377553 CN202882971U (en) | 2012-08-01 | 2012-08-01 | Hinge type push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202882971U true CN202882971U (en) | 2013-04-17 |
Family
ID=48074411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220377553 Expired - Fee Related CN202882971U (en) | 2012-08-01 | 2012-08-01 | Hinge type push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202882971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358581A (en) * | 2014-11-28 | 2015-02-18 | 贵州盘江矿山机械有限公司 | Improved connecting structure for front push rod and rear push rod of support |
-
2012
- 2012-08-01 CN CN 201220377553 patent/CN202882971U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358581A (en) * | 2014-11-28 | 2015-02-18 | 贵州盘江矿山机械有限公司 | Improved connecting structure for front push rod and rear push rod of support |
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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: 20130417 Termination date: 20150801 |
|
| EXPY | Termination of patent right or utility model |