CN203239345U - Forced tool retracting device of coal plough - Google Patents
Forced tool retracting device of coal plough Download PDFInfo
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- CN203239345U CN203239345U CN 201320203965 CN201320203965U CN203239345U CN 203239345 U CN203239345 U CN 203239345U CN 201320203965 CN201320203965 CN 201320203965 CN 201320203965 U CN201320203965 U CN 201320203965U CN 203239345 U CN203239345 U CN 203239345U
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- push rod
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- revolving body
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Abstract
The utility model relates to the technical field of coal ploughs for thin coal seam mining underground a coal mine, and particularly relates to a forced tool retracting device of a coal plough. In the prior art, the tool retracting device generally adopts a chained pull lever structure, that is, a planer tool base is connected with a pull lever by using a chain, the chain with the structure is fixed in length, the length of the chain is difficultly regulated when the stress changes, the reliability is low, and the requirement of a plane base body with large size can not be met. According to the technical scheme of the utility model, revolved bodies are arranged on two sides of the plane base body respectively through shafts, tool bases are arranged on the revolved bodies, the pull lever is assembled in a through hole in the middle of the plane base body, and two ends of the push lever are respectively matched with the revolved bodies on two sides. When a planer tool on one side carries out planing, the revolved body inwards swings to impact the push lever under the action of the resistance of a coal wall, the push lever pushes the revolved body on the other side to outwards swing to drive the planer tool on the side to separate from the coal wall, thus a forced tool retracting process is not influenced by the change of the planing force of the planer tools, the abrasion frequency of the planer tool is reduced, the service life of the planer tools is prolonged, and the work efficiency is increased.
Description
Technical field:
The utility model relates to a kind of coal plough technical field for thin seam mining under the coal mine, and specifically a kind of pressure tool retracting device for coal plough plays the effect of protection planing tool in coal plough planing process.
Background technology:
Coal plough is the professional equipment that is applicable to thin seam mining, and thin seam working surface has certain limitation to equipment, personnel, and this just needs the coal plough exploitation to develop to full-automation.When thin seam mining, need to change after the wearing and tearing of the planing tool of coal plough, often changing planing tool affects production efficiency.The adz block of coal plough does not have cutter relieving function, behind the one side planing cutter planing rib, the opposite side planing tool still repeats planing, does not so not only have operating efficiency, planing tool also is worn equally, and coal plough pressure tool retracting device is exactly effective measures for fear of the planing tool repeated wear.
Tool retracting device generally adopts the structure of chain type drawbar in the prior art, namely with chain adz block is linked to each other with drawbar, and the adz block of both sides, chain, drawbar become as a whole like this.When a side planing cutter was stressed, chain shrank, and the opposite side tool rest moved chain was stretched this moment, made the opposite side planing tool leave rib.But the chain length of this structure is fixed, in case when stressed variation occurring, chain length needs to change, and removes and installs operational difficulties; In addition, this chain type drawbar structural reliability is lower, when plane matrix volume is larger, often can't guarantee merely the demand of cutter relieving by the intensity of chain, so chain type drawbar structure can't satisfy the full-automatic demand for development of coal plough.
Summary of the invention:
The purpose of this utility model provides a kind of coal plough to force tool retracting device, satisfying the desired easy accessibility of coal plough work plane, under the prerequisite of compact conformation, satisfies working strength, can automatically realize cutter relieving function, prolongs the application life of planing tool.
The technical solution adopted in the utility model is: comprise the plane matrix, also comprise left revolving body, right-hand rotation body, left cam, right cam, limited block and push rod; Left revolving body, right-hand rotation body are symmetrical structure, are installed on the revolution inclined-plane that digs the matrix left and right sides by axle respectively, and adz block is separately fixed on left revolving body and the right-hand rotation body; Left revolving body and right-hand rotation body bottom are provided with adjacent notches and projection, dig the matrix both sides be provided with revolving body on groove and the projection adjacent protrusion and the groove that are meshed; Left cam and right cam are housed on the plane matrix of left revolving body, right-hand rotation body inboard, a limited block respectively is housed on the plane matrix of left revolving body, the external side of right-hand rotation;
Dig the matrix middle part and be provided with horizontal through hole; Be equipped with push rod in the through hole, push rod is comprised of push rod and termination, and the two ends of push rod are respectively fitted with a termination by screw thread, and the termination is provided with slotted hole, and pin passes the pin-and-hole at push rod two ends and the slotted hole of termination is locked push rod and termination; The termination at push rod two ends cooperates with left revolving body and right-hand rotation body respectively.
Further, the revolution inclined-plane of the described plane matrix left and right sides becomes 55～85 degree with horizontal plane.
The advantage that the utlity model has is: during coal plough work, tool retracting device can under the active force of work plane, not need accessory system and the transmission of realizable force; Force the cutter relieving process flexible, the impact that not changed by planing tool planing power does not need to adjust at any time, has reached the stability of coal mining requirement, has improved operating efficiency.Tool retracting device rational in infrastructure, easy installation and removal; Push rod easy to wear designs for split, and its end adjustment and change easyly has good reliability, has avoided the excessive wear of planing tool, has effectively prolonged the application life of planing tool.
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is elaborated.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the lateral view that the utility model coal plough is forced tool retracting device;
Fig. 3 is the structural representation of push rod;
Fig. 4 is the work schematic diagram that the utility model coal plough is forced tool retracting device.
The specific embodiment
Among the figure: 1, push rod, 2, dig matrix, 3, left cam, 4, left revolving body, 5, limited block, 6, right cam, 7, right-hand rotation body, 8, the termination, 9, push rod, 10, pin, the distance between X, revolving body and the push rod, the reaction force of F, rib, A, right swinging guide rails, B, the moving guide rail of left swing, S, slotted hole length, L, push rod length.
From Fig. 1～Fig. 3 as can be known, technical solutions of the utility model comprise digs matrix 2, also comprises left revolving body 4, right-hand rotation body 7, left cam 3, right cam 6, limited block 5 and push rod 1; Left revolving body 4, right-hand rotation body 7 are symmetrical structure, are installed on the revolution inclined-plane that digs matrix 2 left and right sides by axle respectively, and the revolution inclined-plane becomes 55～85 degree angles with horizontal plane.Revolution inclined-plane in the present embodiment and horizontal plane angle are 70 degree.
The planing tool of both sides and tool rest are fixed on left revolving body 4 and the right-hand rotation body 7; Left revolving body 4 and right-hand rotation body 7 bottoms are provided with adjacent notches and projection, dig matrix 2 both sides be provided with revolving body on groove and the projection adjacent protrusion and the groove that are meshed; Both sides revolving body and groove and the projection of digging on the matrix consist of respectively right swinging guide rails A and the moving guide rail B of left swing;
The length with push rod 1 thread connection can be regulated in termination 8 in slotted hole length S, namely adjust push rod length L, and then changes the distance X between revolving body and the push rod.
Fig. 4 describes the course of work of the present utility model in detail take the action of the stressed pressure cutter relieving of coal plough right side planing tool as example.When the planing tool on the coal plough right-hand rotation body 7 is shear, the reaction force F of rib makes right-hand rotation body 7 inwardly swing along right swinging guide rails A, promoting push rod 1 moves horizontally in digging the matrix through hole, with the left revolving body 4 of thrust in opposite side, left revolving body 4 is swung laterally along the moving guide rail B of left swing, make the planing tool in left side break away from rib to left back swing, prevent the planing tool wearing and tearing.Because the application of force is to push rod 1 repeatedly for the revolving body of both sides in the shearing operation, easily wear and tear in the termination 8 of push rod; If a small amount of wearing and tearing appear in termination 8, termination 8 outwards can be screwed out, recover push rod and the original distance of revolving body; When termination 8 is damaged, only need to change the termination and get final product.
The above detailed description of technical solutions of the utility model being carried out by preferred embodiment is schematic but not pro forma restriction.Those skilled in the art is on the basis of reading the utility model manual, can make amendment to the technical scheme that embodiment puts down in writing, perhaps part technical characterictic wherein is equal to replacement, and these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of the utility model embodiment technical scheme.
Claims (2)
1. a coal plough is forced tool retracting device, comprise and dig matrix (2), it is characterized in that: also comprise left revolving body (4), right-hand rotation body (7), left cam (3), right cam (6), limited block (5) and push rod (1); Left revolving body (4), right-hand rotation body (7) are symmetrical structure, are assemblied on the revolution inclined-plane that digs matrix (2) left and right sides by axle respectively, and adz block is separately fixed on left revolving body (4) and the right-hand rotation body (7); Left revolving body (4) and right-hand rotation body (7) bottom are equipped with adjacent notches and projection, dig matrix (2) both sides be provided with revolving body on groove and the projection adjacent protrusion and the groove that are meshed; On the plane matrix of left revolving body (4), right-hand rotation body (7) inboard left cam (3) and right cam (6) are housed, on the plane matrix (2) in left revolving body (4), right-hand rotation body (7) outside limited block (5) are housed respectively;
Dig matrix (2) middle part and be provided with horizontal through hole; Be equipped with push rod (1) in the through hole, push rod (1) is comprised of push rod (9) and termination (8), the two ends of push rod (9) are respectively fitted with a termination (8) by screw thread, termination (8) is provided with slotted hole, and pin (10) passes the pin-and-hole at push rod (9) two ends and the slotted hole of termination (8) is locked push rod (9) and termination (8); The termination (8) at push rod (1) two ends cooperates with left revolving body (4) and right-hand rotation body (7) respectively.
2. a kind of coal plough according to claim 1 is forced tool retracting device, it is characterized in that: the revolution inclined-plane of described plane matrix (2) left and right sides becomes 55～85 degree with horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203965 CN203239345U (en) | 2013-04-10 | 2013-04-10 | Forced tool retracting device of coal plough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203965 CN203239345U (en) | 2013-04-10 | 2013-04-10 | Forced tool retracting device of coal plough |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239345U true CN203239345U (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320203965 Expired - Lifetime CN203239345U (en) | 2013-04-10 | 2013-04-10 | Forced tool retracting device of coal plough |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410508A (en) * | 2013-07-09 | 2013-11-27 | 中煤张家口煤矿机械有限责任公司 | Forcible cutter relieving device of coal planer |
| CN105507356A (en) * | 2016-02-01 | 2016-04-20 | 徐州徐工基础工程机械有限公司 | Gear swinging mechanism for milling wheel of double-wheel slot milling machine |
-
2013
- 2013-04-10 CN CN 201320203965 patent/CN203239345U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410508A (en) * | 2013-07-09 | 2013-11-27 | 中煤张家口煤矿机械有限责任公司 | Forcible cutter relieving device of coal planer |
| CN105507356A (en) * | 2016-02-01 | 2016-04-20 | 徐州徐工基础工程机械有限公司 | Gear swinging mechanism for milling wheel of double-wheel slot milling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |