CN215292501U - Cutting device of heading machine and cantilever type longitudinal shaft heading machine - Google Patents
Cutting device of heading machine and cantilever type longitudinal shaft heading machine Download PDFInfo
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- CN215292501U CN215292501U CN202121698464.6U CN202121698464U CN215292501U CN 215292501 U CN215292501 U CN 215292501U CN 202121698464 U CN202121698464 U CN 202121698464U CN 215292501 U CN215292501 U CN 215292501U
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Abstract
The utility model discloses a cutting device of a heading machine and a cantilever type longitudinal axis heading machine, wherein the cutting device of the heading machine comprises a longitudinal axis cutting part and platform devices arranged at the left side and the right side of the longitudinal axis cutting part, and the platform devices comprise an operation platform, a sliding mechanism and a swing mechanism; the cantilever type longitudinal shaft development machine comprises a chassis, a revolving body, a development machine cutting device and the like; the utility model is provided with an onboard platform device on the existing longitudinal axis cutting part, before the supporting operation, the operation platform is firstly rapidly moved forward to the front upper part of the roller of the longitudinal axis cutting part and rotated to be vertical to the longitudinal axis of the longitudinal axis cutting part; after the supporting operation is finished, the operation platform is quickly slid backwards to the rear of the roller of the longitudinal shaft cutting part and rotates to a state parallel to the longitudinal axis of the longitudinal shaft cutting part, the whole structure is compact, the operation safety performance is good, the operation efficiency is high, and the normal tunneling operation of the tunneling machine is hardly influenced.
Description
Technical Field
The utility model relates to a entry driving machine technical field especially relates to an entry driving machine cutting means and adopt this entry driving machine cutting means's cantilever type axis of ordinates entry driving machine.
Background
In both domestic coal mines and foreign coal mines, except for a few mining areas, the unstable roof of coal roadway tunneling construction is more, so that the step distance of mutual conversion between the two working procedures of 'tunneling' and 'anchoring' is mostly within 2.0 m; in the construction under the geological conditions, although the cantilever type longitudinal shaft heading machine has many defects, compared with cantilever type transverse shaft heading machines (including continuous mining machines and all-in-one driving and anchoring machines derived from the continuous mining machines) and full-face heading machines and the like, the cantilever type longitudinal shaft heading machine still has incomparable outstanding advantages, so that the cantilever type longitudinal shaft heading machine is the mainstream technical equipment for coal roadway heading construction of all countries in the world in the past and in the future, and therefore, a series of related technologies including improvement of the technical level of supporting operation are needed to be researched intensively.
Regarding the height of a coal roadway constructed by the cantilever type longitudinal shaft tunneling machine, the height of most of the coal roadway is 3.0-4.0 m; when the height of the roadway reaches more than 3.0m, the height of the roadway exceeds the range which can be reached by the operation of support operators taking a roadway bottom plate as an operation foundation, and the construction site usually adopts two operation modes, wherein one mode is to support by using an operation platform built on the roadway bottom plate, and the other mode is to support by adopting a slag treading operation mode; the so-called slag kicking operation is to perform a supporting operation by stepping on coal or cinder which is intentionally reserved for the slag kicking operation when the heading machine cuts and loads the coal or cinder.
If the supporting operation is carried out by the aid of the operation platform, the operation platform can be assembled at any time and immediately disassembled after being used, and the operation platform can be assembled during construction and repeatedly carried back and forth between an operation place and the back of the operation place; however, the working platform has to have a larger volume to meet the requirements of strength and stability, so that the time and labor are wasted no matter a back-and-forth carrying and transferring mode or a random loading and loading mode is adopted, the labor intensity is high, and the construction speed is obviously reduced.
If the support operation is carried out by adopting the slag kicking operation mode, not only the coal body and the coal slag are rugged and not convenient for construction operation, but also the workload of cutting the coal body and loading materials of the roadway full-section which can be completed once in the mutual conversion step distance of 'digging' and 'anchoring' of the heading machine is completed by reserving the coal body or the coal slag and has to be divided into two times, thereby doubling the conversion times between the 'digging' process and the 'anchoring' process, obviously increasing the invalid workload and time of the process conversion and reducing the operation efficiency and the construction speed.
The prior art provides a tunneling construction operation platform device, which is a construction operation platform which is built on the basis of a cutting part of a tunneling machine and can be quickly disassembled and assembled, and has the advantages that the operation platform can not generate adverse effect on the tunneling operation of the tunneling machine, the cost is very low, and the configuration of an onboard jumbolter on the tunneling machine and the depth upgrade of the tunneling machine are not influenced; however, the technology has the problems that the operation platform needs to be frequently disassembled and assembled, extra labor is added, and certain effective operation time is occupied.
The prior art also provides another airborne supporting operation platform based on a cutting part of the development machine, the operation platform is arranged on the cutting part in a riding mode, and the operation platform extends forwards and retracts backwards in a turning or sliding mode and extends towards the left side and the right side in a folding and unfolding mode; however, the technology has the outstanding problems that the supporting operation platform is too large in size and occupies a large space, and even if the operation platform is completely retracted in place, the normal tunneling operation of the tunneling machine is still greatly influenced, and the configuration of an efficient airborne jumbolter on the tunneling machine and the depth technology upgrade of the tunneling machine are also influenced.
In summary, the prior art has different disadvantages, and further research on new related technologies is needed.
Disclosure of Invention
In view of this, the first technical problem to be solved by the present invention is: the heading machine cutting device is provided with the onboard platform, the supporting operation front platform moves forwards and rotates under the driving of the hydraulic oil cylinder, the supporting operation rear heading operation front platform moves backwards and rotates under the driving of the hydraulic oil cylinder, the operation efficiency and the operation safety are improved, and the normal heading operation is not influenced.
Based on a general technical concept, the utility model discloses the second technical problem that will solve is: the cantilever type longitudinal shaft heading machine adopting the cutting device of the heading machine is provided, and the operation efficiency and the operation safety are improved.
For solving the first technical problem, the technical scheme of the utility model is that: the cutting device of the heading machine comprises a longitudinal axis cutting part and a platform device, wherein the platform device comprises a sliding mechanism and an operation platform, the sliding mechanism comprises a sliding guide rail fixedly arranged on the longitudinal axis cutting part, a sliding guide rod slidably arranged on the sliding guide rail and a telescopic oil cylinder driving the sliding guide rod to slide along the longitudinal reciprocating direction, the telescopic oil cylinder is respectively connected with the longitudinal axis cutting part and the sliding guide rod, and the operation platform is arranged on the sliding guide rod.
The platform device further comprises a rotary mechanism, the rotary mechanism comprises a rotary base, a rotary oil cylinder and a vertical rotating shaft, the rotary base is fixedly arranged on the sliding guide rod, the rotary oil cylinder is fixedly arranged on the rotary base, the vertical rotating shaft is rotatably arranged on the rotary base, the lower portion of the vertical rotating shaft is in transmission connection with the output end of the rotary oil cylinder, and the upper portion of the vertical rotating shaft is connected with the operation platform.
Wherein, rotation mechanism still includes the linking arm, the upper end of vertical pivot with the one end fixed connection of linking arm, the other end of linking arm with work platform is articulated, the linking arm with be provided with between the work platform and be used for the drive work platform is around articulated central line pivoted angle adjustment mechanism.
The angle adjusting mechanism comprises a vertically arranged adjusting lead screw, the adjusting lead screw is in threaded connection with the connecting arm, and the adjusting lead screw is abutted to the operation platform.
The platform device is arranged on the left side and the right side of the longitudinal axis cutting part respectively, and the connecting frames are arranged between the sliding guide rods on the left side and the right side and are connected with the sliding guide rods on the left side and the right side respectively.
The sliding guide rail is a tubular guide rail, and the outer peripheral surface of the sliding guide rod is matched with the inner peripheral surface of the tubular guide rail in shape.
At least one part of the sliding guide rod is of a hollow structure, and the telescopic oil cylinder is inserted into the hollow structure of the sliding guide rod.
The cylinder body of the telescopic oil cylinder is hinged with the sliding guide rod, and the piston rod of the telescopic oil cylinder is hinged with the longitudinal shaft cutting part; or a piston rod of the telescopic oil cylinder is hinged with the sliding guide rod, and a cylinder body of the telescopic oil cylinder is hinged with the longitudinal shaft cutting part.
In order to solve the second technical problem, the technical solution of the present invention is: the cantilever type longitudinal axis heading machine comprises a chassis and a revolving body directly or indirectly rotatably arranged on the chassis, wherein the chassis comprises a frame body, a left walking part and a right walking part which are connected with the frame body, and the cantilever type longitudinal axis heading machine further comprises a cutting device of the heading machine, the longitudinal axis cutting part of the cutting device of the heading machine is hinged with the revolving body through a transverse hinge shaft, and a lifting telescopic oil cylinder is arranged between the longitudinal axis cutting part and the revolving body.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the cutting device of the development machine comprises a longitudinal axis cutting part and a platform device arranged on the longitudinal axis cutting part, wherein the platform device comprises a sliding mechanism consisting of a sliding guide rail, a sliding guide rod and a telescopic oil cylinder and an operation platform arranged on the sliding guide rod; before the heading machine carries out supporting operation after stopping cutting and loading operation, the operation platform can rapidly slide forwards to the front upper part of the roller of the longitudinal shaft cutting part under the driving of the telescopic oil cylinder, so that the requirement of timely supporting a top plate on the front upper part of the roller is met, the operation safety is improved, and the method has very important significance for preventing the top plate from falling in the heading construction process under the condition of an unstable top plate; after the supporting operation is finished and before the heading machine carries out cutting and loading operation, the operation platform can quickly slide backwards to the rear of the roller of the longitudinal shaft cutting part under the driving of the telescopic oil cylinder, and normal heading operation is not influenced.
Because the platform device also comprises a slewing mechanism, the operation platform slides backwards to the rear part of the drum of the longitudinal axis cutting part and rotates to a state parallel to the longitudinal axis of the longitudinal axis cutting part under the driving of the slewing cylinder, the arrangement of the platform device is matched with the structure and the shape height of the longitudinal axis cutting part, the occupied space is very small, even if the longitudinal axis cutting part is provided with the onboard support operation platform, the structure is still very compact, the normal tunneling operation of the tunneling machine cannot be influenced under the condition that the operation platform provides favorable guarantee for the supporting operation, and favorable conditions are created for configuring onboard equipment such as an efficient onboard anchor rod drilling machine for the tunneling machine.
Because the slewing mechanism is also provided with an angle adjusting mechanism for adjusting the angle of the operation platform, the angle adjusting mechanism comprises an adjusting lead screw, when the operation platform cannot keep the horizontal state due to the height adjustment of the longitudinal axis cutting part, the operation platform can be adjusted to the horizontal state by rotating the adjusting lead screw, the height adjustment of the longitudinal axis cutting part is adapted, and the supporting operation requirement is met.
In summary, the heading machine cutting device of the utility model is equipped with the onboard platform device on the existing longitudinal axis cutting part, and during supporting operation, the operation platform can rapidly move forward to the front upper part of the roller of the longitudinal axis cutting part and rotate to the state vertical to the longitudinal axis of the longitudinal axis cutting part; after the supporting operation is finished, the supporting device can rapidly slide backwards to the rear part of the roller of the longitudinal shaft cutting part and rotate to a state parallel to the longitudinal axis of the longitudinal shaft cutting part, normal tunneling operation is not affected, the operation safety performance is good, the operation efficiency is high, and the whole structure is compact. Correspondingly, adopted the utility model discloses entry driving machine cutting device's cantilever type axis of ordinates entry driving machine also must have above-mentioned beneficial effect.
Drawings
Fig. 1 is a schematic structural view (in a supporting state) of a cutting device of a heading machine according to an embodiment of the invention;
fig. 2 is a schematic view of a cutting device of the heading machine according to an embodiment of the present invention in a heading state;
FIG. 3 is a schematic view of FIG. 2 taken along line A;
in the figure: 1-longitudinal axis cutting part; 2, a telescopic oil cylinder; 3-a sliding guide rail; 4-sliding guide rod; 41-connecting pin; 5-a working platform; 6-a rotating base; 7-a rotary oil cylinder; 8-vertical rotating shaft; 9-a connecting frame; 10-a linker arm; 11-a pin shaft; 12-adjusting the lead screw.
Detailed Description
It should be noted that, in the description herein, unless specified or limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, e.g., as meaning either a mechanical or electrical connection or a hydraulic connection; the two elements may be directly connected or indirectly connected through an intermediate medium, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.
For ease of understanding, the following convention is made herein: the longitudinal direction refers to the front and back direction of the development machine; the transverse direction refers to the left and right direction of the development machine; the vertical direction refers to the up-down direction of the development machine.
The invention is described in detail and not limited by the following figures and examples.
As shown in fig. 1, fig. 2 and fig. 3, the cutting device of the heading machine of the embodiment of the present invention includes a longitudinal axis cutting unit 1 and a platform device disposed on the longitudinal axis cutting unit 1, and the platform device is disposed on the left and right sides of the longitudinal axis cutting unit 1. The platform device comprises a working platform 5, a sliding mechanism and a slewing mechanism.
The sliding mechanism comprises a sliding guide rail 3 fixedly arranged on the longitudinal shaft cutting part 1, a sliding guide rod 4 slidably arranged on the sliding guide rail 3, and a telescopic oil cylinder 2 driving the sliding guide rod 4 to slide in a reciprocating manner along the longitudinal direction, the telescopic oil cylinder 2 is respectively connected with the longitudinal shaft cutting part 1 and the sliding guide rod 4, and the operation platform 5 is arranged on the sliding guide rod 4. Furthermore, a connecting frame 9 is further arranged between the sliding guide rods 4 on the left side and the right side, the connecting frame 9 is fixedly connected with the sliding guide rods 4 on the left side and the right side respectively, and the connecting frame 9 can prevent the sliding guide rods 4 from rotating in the sliding process to cause instability of the platform devices on the two sides.
The sliding guide rail 3 is preferably a tubular guide rail, including but not limited to a circular tube, and the outer peripheral surface of the sliding guide rod 4 is matched with the inner peripheral surface of the tubular guide rail in shape.
Wherein, the sliding guide rod 4 is preferably a tubular guide rod which is of a hollow structure along the whole length; or at least one part of the sliding guide rod 4 is of a hollow structure; the telescopic oil cylinder 2 is inserted into the hollow structure of the sliding guide rod 4. The telescopic oil cylinder 2 is arranged in the sliding guide rod 4, so that the structure is compact and the occupied space is small.
In this embodiment, the cylinder body of the telescopic cylinder 2 is hinged to the front end of the sliding guide rod 4 through a connecting pin 41, and the end of the piston rod of the telescopic cylinder 2 is hinged to the longitudinal shaft cutting part 1 through a pin. Obviously, the connection mode is not limited to this, and the end of the piston rod of the telescopic cylinder 2 may be hinged to the front end of the sliding guide rod 4 through a connecting pin, and the cylinder body of the telescopic cylinder 2 may be hinged to the longitudinal cutting unit 1 through a pin. Preferably, the former connection mode is adopted, so that the service life of the piston rod can be prevented from being reduced due to abrasion caused by sliding fit with the sliding guide rail.
The slewing mechanism comprises a slewing base 6, a slewing oil cylinder 7, a vertical rotating shaft 8 and a connecting arm 10. The rotary base 6 is fixedly arranged at the front end of the sliding guide rod 4, the rotary oil cylinder 7 is fixedly arranged at the lower portion of the rotary base 6, the vertical rotating shaft 8 is rotatably arranged on the rotary base 6, the lower portion of the vertical rotating shaft 8 is in transmission connection with the output end of the rotary oil cylinder 7, and the upper portion of the vertical rotating shaft 8 is connected with the operation platform 5.
Specifically, the upper end of the vertical rotating shaft 8 is fixedly connected with one end of the connecting arm 10 through a flat key, the other end of the connecting arm 10 is hinged to the operation platform 5 through a pin 11, and an angle adjusting mechanism for driving the operation platform 5 to rotate around a hinge center line (namely, the center line of the pin 11) is arranged between the connecting arm 10 and the operation platform 5. Specifically, angle adjustment mechanism includes the regulation lead screw 12 of vertical setting, adjusts lead screw 12 and linking arm 10 threaded connection, adjusts the upper portion butt operation platform 5 of lead screw 12, for increase butt area, at the fixed support disc that sets up in the upper portion of adjusting lead screw 12. When the height of the longitudinal axis cutting part 1 is adjusted to cause that the operation platform 5 can not keep a horizontal state, the operation platform 5 can be adjusted to the horizontal state by rotating the adjusting screw 12, the horizontal supporting operation requirement is met, and the height adjustment requirement of the longitudinal axis cutting part is met.
The utility model discloses cantilever type axis of ordinates entry driving machine includes that chassis, direct or indirect rotation set up in the solid of revolution on chassis, above entry driving machine cutting means and other known structures that technical personnel in the field are familiar, entry driving machine cutting means's axis of ordinates cutting means 1 is articulated through horizontal hinge with the solid of revolution, is provided with the flexible hydro-cylinder of lift between axis of ordinates cutting means 1 and the solid of revolution. Since the remaining parts of the boom-type longitudinal shaft excavator which are not described in detail are known to those skilled in the art, they are not shown and described in detail herein.
As shown in fig. 1, before the heading machine performs supporting operation after stopping cutting and loading operation, the operation platform 5 can rapidly slide forward to the front upper part of the drum of the longitudinal shaft cutting part 1 under the driving of the telescopic oil cylinder 2, and rotate to the state vertical to the longitudinal axis of the longitudinal shaft cutting part 1 under the driving of the rotary oil cylinder 7, so as to meet the requirement of timely supporting a top plate at the front upper part of the drum to prevent the top plate from falling off, which has very important significance for preventing roof fall accidents in the heading construction process under the condition of unstable top plate; as shown in fig. 2, before the heading machine performs cutting and loading operations after the supporting operation is completed, the operation platform 5 can rapidly slide backwards to the rear of the drum of the longitudinal axis cutting part 1 under the driving of the telescopic cylinder 2 and rotate to a state parallel to the longitudinal axis of the longitudinal axis cutting part 1 under the driving of the rotary cylinder 7, so that normal heading operation is not affected, the arrangement of the platform device is matched with the structure and the shape height of the longitudinal axis cutting part 1, the occupied space is very small, even if the longitudinal axis cutting part 1 is provided with the onboard supporting operation platform, the structure is still very compact, the operation platform provides favorable guarantee conditions for safe supporting operation, normal heading operation of the heading machine cannot be affected, and favorable conditions are created for the heading machine to be provided with onboard equipment such as an efficient onboard anchor rod drilling machine and the like.
The foregoing is an example of the preferred embodiment of the present invention, and those parts not specifically mentioned are known in the art, and the scope of the present invention is defined by the appended claims, and all equivalent changes that can be made based on the teachings of the present invention are within the scope of the present invention.
Claims (9)
1. Entry driving machine cutting means, entry driving machine cutting means includes axis of ordinates cutting units, its characterized in that, entry driving machine cutting means still includes platform device, platform device includes:
the sliding mechanism comprises a sliding guide rail fixedly arranged on the longitudinal shaft cutting part, a sliding guide rod slidably arranged on the sliding guide rail, and a telescopic oil cylinder driving the sliding guide rod to slide in a reciprocating manner along the longitudinal direction, the telescopic oil cylinder is respectively connected with the longitudinal shaft cutting part and the sliding guide rod, and the operation platform is arranged on the sliding guide rod.
2. The heading machine cutting device according to claim 1, wherein the platform device further comprises a swing mechanism, the swing mechanism comprises a swing base, a swing cylinder and a vertical rotating shaft, the swing base is fixedly arranged on the sliding guide rod, the swing cylinder is fixedly arranged on the swing base, the vertical rotating shaft is rotatably arranged on the swing base, the lower part of the vertical rotating shaft is in transmission connection with the output end of the swing cylinder, and the upper part of the vertical rotating shaft is connected with the operation platform.
3. The cutting device of the heading machine as claimed in claim 2, wherein the rotation mechanism further comprises a connecting arm, the upper end of the vertical rotation shaft is fixedly connected with one end of the connecting arm, the other end of the connecting arm is hinged with the working platform, and an angle adjusting mechanism for driving the working platform to rotate around a hinge center line is arranged between the connecting arm and the working platform.
4. The roadheader cutting device of claim 3, wherein the angle adjustment mechanism comprises a vertically disposed adjustment screw, the adjustment screw being threadedly connected to the connecting arm and the adjustment screw further abutting the work platform.
5. The cutting device of the heading machine as claimed in any one of claims 1 to 4, wherein the platform means is provided on each of left and right sides of a longitudinal axis of the longitudinal cutting section, and a connecting frame is provided between the sliding guide rods on the left and right sides, the connecting frame being connected to the sliding guide rods on each of the left and right sides.
6. The heading machine cutting device of claim 1, wherein the sliding guide is a tubular guide, and the outer peripheral surface of the sliding guide rod is adapted to the inner peripheral surface of the tubular guide.
7. The ripper cutting apparatus of claim 1, wherein at least a portion of the slide guide is a hollow structure, the telescopic cylinder being inserted into the hollow structure of the slide guide.
8. The heading machine cutting device according to claim 7, wherein the cylinder body of the telescopic cylinder is hinged to the sliding guide rod, and the piston rod of the telescopic cylinder is hinged to the longitudinal shaft cutting part; or a piston rod of the telescopic oil cylinder is hinged with the sliding guide rod, and a cylinder body of the telescopic oil cylinder is hinged with the longitudinal shaft cutting part.
9. A cantilevered longitudinal axis roadheader comprising: the cutting device comprises a chassis and a revolving body directly or indirectly rotatably arranged on the chassis, wherein the chassis comprises a frame body and a left walking part and a right walking part which are connected with the frame body, and is characterized by further comprising the cutting device of the heading machine as claimed in any one of claims 1 to 8, the longitudinal shaft cutting part of the cutting device of the heading machine is hinged with the revolving body through a transverse hinge shaft, and a lifting telescopic oil cylinder is arranged between the longitudinal shaft cutting part and the revolving body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121698464.6U CN215292501U (en) | 2021-07-24 | 2021-07-24 | Cutting device of heading machine and cantilever type longitudinal shaft heading machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121698464.6U CN215292501U (en) | 2021-07-24 | 2021-07-24 | Cutting device of heading machine and cantilever type longitudinal shaft heading machine |
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| CN215292501U true CN215292501U (en) | 2021-12-24 |
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| CN202121698464.6U Active CN215292501U (en) | 2021-07-24 | 2021-07-24 | Cutting device of heading machine and cantilever type longitudinal shaft heading machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201562A (en) * | 2023-03-08 | 2023-06-02 | 廊坊景隆重工机械有限公司 | Working platform for fan-shaped linkage unfolding |
-
2021
- 2021-07-24 CN CN202121698464.6U patent/CN215292501U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201562A (en) * | 2023-03-08 | 2023-06-02 | 廊坊景隆重工机械有限公司 | Working platform for fan-shaped linkage unfolding |
| CN116201562B (en) * | 2023-03-08 | 2023-10-24 | 廊坊景隆重工机械有限公司 | Working platform for fan-shaped linkage unfolding |
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