CN111594249A - Supporting auxiliary device for heading machine - Google Patents
Supporting auxiliary device for heading machine Download PDFInfo
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- CN111594249A CN111594249A CN202010398056.2A CN202010398056A CN111594249A CN 111594249 A CN111594249 A CN 111594249A CN 202010398056 A CN202010398056 A CN 202010398056A CN 111594249 A CN111594249 A CN 111594249A
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- support
- heading machine
- folding
- oil cylinder
- upright
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- 230000005641 tunneling Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
The invention discloses a supporting auxiliary device for a heading machine, which is arranged at the top of the output end of the heading machine and connected with the two sides of the output end of the heading machine, the device comprises a folding bracket for protecting the top of the heading machine, a folding oil cylinder for translating the folding bracket along the axial line direction of the heading machine and a hydraulic control system, the two ends of the folding oil cylinder are respectively hinged with the heading machine and the folding bracket, the folding oil cylinder is provided with a control valve for controlling the movement of the folding oil cylinder, the hydraulic control system is connected with the signal input end of the folding oil cylinder through the control valve, and two sides of the bracket connected with the heading machine are respectively and symmetrically provided with upright posts with adjustable; by adopting the technical scheme, the hydraulic control system can be used for independently controlling the plurality of different oil cylinders, so that the supporting device can form various inclined shapes to cope with complex roadway sites.
Description
Technical Field
The invention belongs to the field of coal mining, and particularly relates to a supporting auxiliary device for a heading machine.
Background
The temporary support of roadway driving is a technical problem which puzzles the safety production for a long time. Because the traditional temporary support adopts a single body matched with a top beam for support, the top plate support of a hollow top area is not timely after the roadway is tunneled, all manual operation is performed, the safety threat is large, the labor intensity is high, the support speed is slow, and accidents that people are injured due to the fact that waste rock falls from the top plate often occur; the airborne advance temporary support in the prior art only adapts to the relatively gentle roof, is difficult to adapt to the different changes of roof: such as a sharp top, a slant top, a corrugated top, etc., and thus, is not suitable for complex and variable practical environments.
Disclosure of Invention
The invention aims to solve the technical problem of providing a supporting auxiliary device which is suitable for various different roadway environments and is used for a heading machine.
In order to achieve the purpose, the invention adopts the technical scheme that:
the supporting auxiliary device for the heading machine is arranged at the top of the output end of the heading machine and connected with two sides of the output end of the heading machine, the supporting auxiliary device comprises a folding support used for protecting the top of the heading machine, a folding oil cylinder used for enabling the folding support to move horizontally along the axial line direction of the heading machine and a hydraulic control system, two ends of the folding oil cylinder are hinged with the heading machine and the folding support respectively, the folding oil cylinder is provided with a control valve used for controlling the movement of the folding oil cylinder, the hydraulic control system is connected with the signal input end of the folding oil cylinder through the control valve, and two sides of the support connected with the heading machine are symmetrically provided with upright.
The invention discloses a supporting auxiliary device for a heading machine, wherein a support comprises a top frame for protecting the top of the output end of the heading machine and two symmetrically arranged upright posts for supporting the top frame on two sides of the heading machine, lifting oil cylinders for stretching the upright posts are arranged in the upright posts, each upright post comprises an inner upright post and an outer upright post which are arranged up and down, the cross section of each inner upright post is smaller than that of each outer upright post, the bottom end of each inner upright post is arranged in a notch at the corresponding position of each outer upright post, the lifting oil cylinders are arranged between the inner upright posts and the outer upright posts, the length of the whole upright posts is adjusted by the inner upright posts through the lifting oil cylinders, and the lifting oil cylinders control the lifting of the lifting oil cylinders.
The invention discloses a supporting auxiliary device for a heading machine, wherein a supporting oil cylinder used for being matched with a top frame for supporting is further arranged between a support and the top end of an upright post, two ends of the supporting oil cylinder are respectively hinged with the upright post and the top frame, a connecting piece is arranged in the position where the top end of the upright post is connected with the top frame, the upright post is hinged with the top frame through the connecting piece, and the supporting oil cylinder controls the relative position between the top frame and the upright post through a hydraulic control system.
The invention discloses a support auxiliary device for a heading machine, wherein a hydraulic control system comprises a programmable logic controller and a plurality of control valves, the programmable logic controller is provided with a plurality of signal output ends corresponding to the plurality of control valves, outputs control signals to the control valves through the signal output ends and transmits the control signals to corresponding oil cylinders.
The invention discloses a supporting auxiliary device for a heading machine, wherein a folding oil cylinder is of a type HSG63, the rod diameter is 50 mm, and the stroke is 80 cm.
The invention discloses a supporting auxiliary device for a heading machine, wherein a supporting oil cylinder adopts a universal coupling with the model of HSG63, the rod diameter of 40 mm and the stroke of 60 cm, and a connecting piece adopts the inner hole with the radius of 18 mm, the outer diameter of 32 mm and the total length of 85 mm.
The invention discloses a supporting auxiliary device for a heading machine.
The invention discloses a supporting auxiliary device for a heading machine, wherein a programmable logic controller is correspondingly connected with two folding oil cylinders, two folding oil cylinders and two lifting oil cylinders which are symmetrical along the two sides of an axis through different control valves respectively, and the programmable logic controller and each independent oil cylinder are independently controlled.
The invention discloses a supporting auxiliary device for a heading machine, wherein the bottoms of two symmetrically arranged lifting oil cylinders are provided with U-shaped pipelines connected with oil passages, and the bottoms of the U-shaped pipelines corresponding to the central axis are provided with balance valves.
The invention discloses a supporting auxiliary device for a heading machine, wherein a flow control valve with the model ZY47F-16 is adopted as a balance valve.
By adopting the technical scheme, the working position of the support is determined by adjusting the position of the output end of the development machine and controlling the action of the oil cylinders when the working position of the support auxiliary device is adjusted, the original part of a hydraulic system is improved from synchronous control to independent control, and a balance valve for protecting the hydraulic pressure difference in the lifting oil cylinders is arranged between the lifting oil cylinders so as to achieve the aim of asynchronous action control, the support can be timely adjusted to a corresponding supporting state, so that the heading machine can work in a complex roadway environment, and the safety of field workers is guaranteed.
The invention will be explained in more detail below with reference to the drawings and examples.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic side view of a structure in which the support assisting device of the present invention is combined with a heading machine;
FIG. 2 is a schematic structural view of the connecting member of the present invention in an inclined state;
FIG. 3 is a schematic diagram of the operation of the balancing valve of the present invention;
fig. 4 is a schematic diagram of a hydraulic system of the present invention.
Labeled as: 1. a top frame; 2. an outer column; 3. a support cylinder; 4. folding the oil cylinder; 5. a lift cylinder; 6. an inner upright post; 7. an output end of the development machine; 8. a balancing valve; 9. a control valve; 10. a plurality of oil cylinders.
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail for the purpose of providing a more complete, accurate and thorough understanding of the inventive concepts and technical solutions of the present invention, including the shapes of the components, the structures, the mutual positions and connection relationships of the components, the functions and operating principles of the components, the manufacturing processes, the operation and use methods, and the like.
FIG. 1 is a schematic side view of a structure in which the support auxiliary device of the present invention is combined with a heading machine, as shown in FIG. 1, the support auxiliary device is arranged on the top of an output end 7 of the heading machine and connected with both sides thereof, the device comprises a folding bracket for protecting the top of the heading machine, a folding cylinder 4 for the folding bracket to translate along the axial direction of the heading machine, and a hydraulic control system, both ends of the folding cylinder 4 are hinged with the heading machine and the folding bracket respectively, the folding cylinder 4 is provided with a control valve for controlling the movement thereof, the hydraulic control system is connected with a signal input end of the folding cylinder 4 through the control valve, both sides of the bracket connected with the heading machine are symmetrically provided with length-adjustable columns respectively, the bracket comprises a top frame 1 for protecting the top of the output end of the heading machine and two symmetrically-arranged columns for supporting the top frame on both sides of the heading machine, a lifting oil cylinder 5 for stretching and retracting is arranged in the upright post, the upright post is composed of an inner upright post 6 and an outer upright post 2 which are arranged up and down, the section of the inner upright post 6 is smaller than that of the outer upright post 2, the bottom end of the inner upright post is arranged in a notch at the corresponding position of the outer upright post 2, and the lifting oil cylinder 5 is arranged between the inner upright post 6 and the outer upright post 2, the length of the whole upright post is adjusted by the inner upright post 6 through the lifting oil cylinder 5, the lifting oil cylinder 5 controls the lifting through a hydraulic control system, a supporting oil cylinder 3 used for being matched with the top frame for supporting is also arranged between the support and the top end of the upright post, two ends of the supporting oil cylinder 3 are respectively hinged with the upright post and the top frame 1, and a connecting piece is arranged in the position where the top end of the upright post is connected with the top frame 1, the upright post is hinged with the top frame 1 through the connecting piece, and the supporting oil cylinder 3 controls the relative position between the top frame 1 and the upright post through a hydraulic control system.
Fig. 2 is a schematic structural diagram of the connecting piece in an inclined state, the connecting piece is arranged in a position where the top end of the upright post is connected with the top frame, a corresponding fixing groove is formed in a position where the support is connected with the connecting piece, one end of the connecting piece is fixedly connected with the corresponding end of the support through the fixing groove, the connecting piece adopts a universal coupling with an inner hole radius of 18 mm, an outer diameter of 32 mm and a total length of 85 mm, and the connecting piece can be used for meeting various hinged states generated under the control of an oil cylinder, so that the support and the connecting piece have higher freedom degree to match the inclined condition of the top frame under various different conditions.
Fig. 3 is a working schematic diagram of a balance valve according to the present invention (the diagram is a control principle between the balance valve and a lift cylinder), a U-shaped pipeline connected with oil passages is arranged at the bottom of two lift cylinders symmetrically arranged as shown in fig. 3, a balance valve is arranged at the bottom corresponding to the central axis of the U-shaped pipeline, if a U-shaped pipe is not used, other arrangement modes of communication are also possible, the arrangement principle of the balance valve in the present case is described by taking the U-shaped pipe as an example, the balance valve is a flow control valve with model number ZY47F-16, and other model numbers of the same type can be used as substitutes.
The folding oil cylinder and the supporting oil cylinder are both in the type of HSG63, the rod diameters of different rod diameters and different strokes are respectively 50 mm according to respective requirements, the stroke is 80 cm, the rod diameter is 40 mm, the stroke is 60 cm, oil cylinders with other types or parameters (regardless of the types described in the scheme) can be adopted according to actual requirements, and the functions of the folding oil cylinder and the supporting oil cylinder are matched for telescopic use.
FIG. 4 is a schematic diagram of the hydraulic system of the present invention, wherein the hydraulic control system as shown in the figure comprises a programmable logic controller (D) and a plurality of control valves 9, the programmable logic controller (D) is provided with a plurality of signal output ends corresponding to the plurality of control valves, outputs control signals to the control valves through the signal output ends and transmits the control signals to the corresponding oil cylinders, the programmable logic controller is correspondingly connected to two folding oil cylinders, two folding oil cylinders and two lifting oil cylinders which are symmetrical along two sides of an axis through different control valves, and the programmable logic controller and each independent oil cylinder are independently controlled; the cylinders shown in the drawings are actually grouped together according to the components, each group of cylinders (for example, symmetrically arranged support cylinders) shown in the drawings is namely the cylinders 10 which are symmetrically arranged, each group of cylinders is internally provided with a respective balance valve, and the balance valves of the lift cylinders are actually not needed in practical use, so that the balance valves of the lift cylinders are limited in the present case, and the control valves actually describe three-phase four-way valves for controlling the hydraulic flow direction, thereby playing the role of individually controlling each cylinder, and matching the cylinder control condition of the top frame in the inclined state (the condition that only one-side lifting is possibly generated).
By adopting the technical scheme, the working position of the support is determined by adjusting the position of the output end of the development machine and controlling the action of the oil cylinders when the working position of the support auxiliary device is adjusted, the original part of a hydraulic system is improved from synchronous control to independent control, and a balance valve for protecting the hydraulic pressure difference in the lifting oil cylinders is arranged between the lifting oil cylinders so as to achieve the aim of asynchronous action control, the support can be timely adjusted to a corresponding supporting state, so that the heading machine can work in a complex roadway environment, and the safety of field workers is guaranteed.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (10)
1. The utility model provides a strut auxiliary device for entry driving machine, the device sets up at the top of entry driving machine output and is connected its characterized in that with its both sides: the device comprises a folding support used for protecting the top of the tunneling machine, a folding oil cylinder used for the folding support to move horizontally along the axial direction of the tunneling machine and a hydraulic control system, wherein two ends of the folding oil cylinder are respectively hinged with the tunneling machine and the folding support, the folding oil cylinder is provided with a control valve used for controlling the movement of the folding oil cylinder, the hydraulic control system is connected with the signal input end of the folding oil cylinder through the control valve, and two sides of the support connected with the tunneling machine are respectively symmetrically provided with upright columns with adjustable lengths.
2. The support auxiliary device for the heading machine according to claim 1, wherein the support comprises a top frame for protecting the top of the output end of the heading machine and two symmetrically arranged upright columns for supporting the top frame on both sides of the heading machine, wherein lifting cylinders for extending and retracting the upright columns are arranged in the upright columns, the upright columns are composed of an inner upright column and an outer upright column which are arranged up and down, the cross section of the inner upright column is smaller than that of the outer upright column, the bottom end of the inner upright column is arranged in a notch at the corresponding position of the outer upright column, the lifting cylinders are arranged between the inner upright column and the outer upright column, the length of the whole upright column is adjusted by the inner upright column through the lifting cylinders, and the lifting cylinders are controlled to lift by the hydraulic control system.
3. A support auxiliary device for a heading machine according to claim 2, wherein a support cylinder for supporting the top frame is further provided between the support and the top end of the upright, both ends of the support cylinder are respectively hinged to the upright and the top frame, and a connecting member is provided in a position where the top end of the upright is connected to the top frame, the upright is hinged to the top frame through the connecting member, and the support cylinder controls the relative position between the top frame and the upright through the hydraulic control system.
4. A support aid for a heading machine according to claim 3 wherein the hydraulic control system includes a programmable logic controller and a plurality of control valves, the programmable logic controller being provided with a plurality of signal outputs corresponding to the plurality of control valves and outputting control signals to the control valves via the signal outputs and to the corresponding cylinders.
5. A support aid for a heading machine as claimed in claim 1 wherein the folding cylinder is of the type HSG63, having a rod diameter of 50 mm and a stroke of 80 cm.
6. A support aid for a heading machine as claimed in claim 3 wherein the support cylinder is of the type HSG63, the rod diameter is 40 mm and the stroke is 60 cm, and the connector is a universal joint with an internal bore radius of 18 mm, an external diameter of 32 mm and a total length of 85 mm.
7. A support auxiliary device for a heading machine according to claim 3, wherein the support is provided with a corresponding fixing groove at a position where the support is connected to the connecting member, and one end of the connecting member is fixedly connected to the corresponding end of the support through the fixing groove.
8. A support auxiliary device for a heading machine according to claim 4, wherein the programmable logic controller is connected to the two folding cylinders, and the two lift cylinders, which are symmetrical on both sides along the axis, through different control valves, respectively, and is configured to be controlled independently from each of the independent cylinders.
9. A support auxiliary device for a heading machine according to claim 2, wherein the bottoms of the two lift cylinders which are symmetrically arranged are provided with U-shaped pipelines which are connected by oil passages, and the bottoms of the U-shaped pipelines which correspond to the central axis are provided with balance valves.
10. A support aid for a heading machine as claimed in claim 9 wherein the counterbalance valve is a flow control valve of type ZY 47F-16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398056.2A CN111594249A (en) | 2020-05-12 | 2020-05-12 | Supporting auxiliary device for heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398056.2A CN111594249A (en) | 2020-05-12 | 2020-05-12 | Supporting auxiliary device for heading machine |
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| Publication Number | Publication Date |
|---|---|
| CN111594249A true CN111594249A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398056.2A Pending CN111594249A (en) | 2020-05-12 | 2020-05-12 | Supporting auxiliary device for heading machine |
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| CN (1) | CN111594249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681226A (en) * | 2022-11-03 | 2023-02-03 | 北京科技大学 | Shaft heading machine supports experimental hydraulic system |
-
2020
- 2020-05-12 CN CN202010398056.2A patent/CN111594249A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115681226A (en) * | 2022-11-03 | 2023-02-03 | 北京科技大学 | Shaft heading machine supports experimental hydraulic system |
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