CN112664145A - Movable telescopic platform - Google Patents
Movable telescopic platform Download PDFInfo
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- CN112664145A CN112664145A CN202110006638.6A CN202110006638A CN112664145A CN 112664145 A CN112664145 A CN 112664145A CN 202110006638 A CN202110006638 A CN 202110006638A CN 112664145 A CN112664145 A CN 112664145A
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Abstract
The invention relates to a movable telescopic platform which comprises a supporting guide rail, a walking box, a suspension arm, a turnover oil cylinder and a drilling machine platform, wherein the walking box straddles over the supporting guide rail and can reciprocate back and forth along the supporting guide rail, the suspension arm is arranged on the walking box and can slide back and forth relative to the walking box, one part of the drilling machine platform is hinged with the front end of the suspension arm, the other part of the drilling machine platform is hinged with the suspension arm through the turnover oil cylinder, when the turnover oil cylinder is in an extended or contracted limit state, a top and bottom supporting mechanism of the drilling machine platform is in a vertical upright state, a suspension arm driving chain set and a walking driving chain set are respectively arranged between the front end and the rear end of each of the suspension arm and the supporting guide rail, and the suspension arm driving chain set and the walking driving chain set are respectively in meshing. The invention can stably convey the anchor rod drilling machine to the working face head from the rear of the roadway heading machine when the support is needed, and can be adjusted to the retraction state when the support is not needed, thereby not influencing the heading cutting area.
Description
Technical Field
The invention relates to a novel roadway anchor rod supporting platform which is used on a heading machine and used for movably transmitting an anchor rod drilling machine to a working face head, and belongs to the technical field of coal mine roadway heading equipment.
Background
The traditional roadway support generally adopts manual operation, the labor intensity is high, and the working environment is severe. The structure form that the onboard jumbolter is additionally arranged on two sides of a cutting arm or two sides of a machine body of the cantilever longitudinal shaft roadway heading machine to reduce the manual operation intensity is developed later, but the structure form not only occupies the cutting space, but also cannot be installed and matched with cantilever transverse shaft roadway heading equipment under the condition that the transverse shaft cutting heading form is increasingly popular.
Disclosure of Invention
The invention aims to provide a movable telescopic platform, which can stably convey a jumbolter to the head of a working face from the rear of a roadway heading machine when bolting is needed, and can be adjusted to a recovery state when the bolting is not needed, so that a heading cutting area is not influenced.
The main technical scheme of the invention is as follows:
a movable telescopic platform comprises a supporting guide rail, a walking box, a suspension arm, a turnover oil cylinder and a drilling machine platform, wherein the walking box straddles above the supporting guide rail and can walk back and forth along the supporting guide rail in a reciprocating manner, the suspension arm is arranged on the walking box, the extension direction of the suspension arm is the same as that of the supporting guide rail, the suspension arm can slide back and forth relative to the walking box, one part of the drilling machine platform is hinged with the front end of the suspension arm, the other part of the drilling machine platform is hinged with one end of the turnover oil cylinder, the other end of the turnover oil cylinder is hinged with the suspension arm, when the turnover oil cylinder is in an extended or contracted limit state, a top-bottom supporting mechanism of the drilling machine platform is in a vertical upright state, a suspension arm driving chain group and a walking driving chain group are respectively arranged between the front end and the rear end of the suspension arm and the supporting, the suspension arm driving chain set and the walking driving chain set respectively bypass from the lower part of the second chain wheel set and the upper part of the first chain wheel set, and the first chain wheel set and the second chain wheel set are driven by a driving device of the walking box to rotate in a fixed shaft mode.
A set of chain tensioning wheel group is still preferably arranged respectively to both sides around first sprocket group and the second sprocket group in the box of walking case, davit drive chain group is walked around from the top of chain tensioning wheel group, walking drive chain group is walked around from the below of chain tensioning wheel group.
The boom arm is preferably provided as a box-type structure.
The lower part at both ends can install walking support wheelset and glide slope respectively around the box of walking case, the left and right spout of glide slope surrounds respectively on the left and right side edge of supporting guide rail from the left and right sides, glide slope and supporting guide rail front and back sliding fit, walking support wheelset rolls and supports on supporting guide rail.
Support direction wheelset and last slide can be installed respectively on the upper portion at preceding, back both ends of the box of walking case, the left and right outside of davit is provided with the front and back and extends and respectively left and right side flank of evagination, the flank inserts in the last slide with sliding fit around the last slide, support direction wheelset from the below do the davit provides the support that rolls.
The invention has the beneficial effects that:
the two-stage chain type movable telescopic platform can be independently carried on a roadway heading machine, so that the anchor rod drilling machine can be stably conveyed to the head from the rear upper part of the roadway heading machine in the roadway supporting process, and stable support and positioning are provided for the anchor rod drilling machine. The manual operation intensity is reduced, and the cantilever longitudinal shaft tunneling machine or the cantilever transverse shaft tunneling machine is suitable for use. When the tunnel boring machine is in the initial state of retraction, the cutting area of the tunnel boring machine is not occupied, and the cutting operation is not influenced.
The suspension arm adopts a box-type structure, and has higher rigidity and smaller deformation winding degree under the conditions of long telescopic distance and large cantilever. The upper slide way can ensure the stability of the front and back sliding tracks of the suspension arm, and the support guide wheel set can provide enough support for the suspension arm and prevent the radial movement of the suspension arm. Therefore, the suspension arm can keep better rigidity no matter in a static state or a forward and backward sliding state.
Drawings
FIG. 1 is a schematic perspective view of one embodiment of the present invention;
FIG. 2 is a front view of one embodiment of the present invention;
FIG. 3 is a schematic perspective view of the walking box;
FIG. 4 is a schematic perspective view of an assembly of the drive mechanism and a first and second sprocket set;
FIG. 5 is a schematic view of the continuous S-wrap effect of the boom drive chain set and the travel drive chain set;
FIG. 6 is a perspective view of an embodiment of the rig floor;
FIG. 7 is a schematic illustration of the rig floor in a shoring or shoring-ready operating condition;
fig. 8 is a schematic structural view of the mobile telescopic platform of the present invention installed above and behind a main machine of a lateral shaft tunnel boring machine.
Reference numerals:
1. the device comprises a supporting guide rail, 2 parts of a traveling box, 2 parts to 1 parts of a first chain wheel set, 2 parts to 2 parts of a second chain wheel set, 2 parts to 3 parts of a traveling supporting wheel set, 2 parts to 4 parts of a lower slideway, 2 parts to 5 parts of an upper slideway, 2 parts to 6 parts of a supporting guide wheel set, 2 parts to 7 parts of a driving device, 2 parts to 8 parts of a chain tensioning wheel set, 3 parts of a suspension arm, 4 parts of a turnover oil cylinder, 5 parts to 5 parts of a drilling machine platform, 5 parts to 1 parts of a top and bottom supporting mechanism, 5 parts to 2 parts of a translation mechanism, 5 parts to 3 parts of a drilling machine mounting frame, 6 parts of a suspension arm driving.
Detailed Description
The invention discloses a movable telescopic platform, which comprises a support guide rail 1, a walking box 2, a suspension arm 3, a turnover oil cylinder 4 and a drilling machine platform 5 as shown in figures 1-8. The supporting guide rail is an installation foundation of the movable telescopic platform, and the movable telescopic platform can be independently installed above or above the host of the roadway heading machine through the supporting guide rail. The support rails are generally extended in the front-rear direction and laid in a straight horizontal line, and the traveling box straddles above the support rails and can travel back and forth along the support rails. The suspension arm is arranged on the walking box, has the same extension direction as the support guide rail and can slide back and forth relative to the walking box. One part of the drilling machine platform can be hinged with the front end of the suspension arm through a pin shaft, the other part of the drilling machine platform is hinged with one end of the overturning oil cylinder, and the other end of the overturning oil cylinder is hinged with the suspension arm. The turning oil cylinder stretches and retracts to drive the drilling machine platform to turn. When the overturning oil cylinder is in an extended or contracted limit state (in the embodiment, a contracted limit state), the top-bottom supporting mechanism 5-1 of the drilling machine platform is in a vertical upright state, namely the drilling machine platform enters a working state for supporting or supporting preparation, and when the overturning oil cylinder is in another limit state (such as the extended limit state shown in the attached drawing), the drilling machine platform is in a retracted non-working state. The overturning oil cylinder is preferably used for realizing the overturning of the drilling machine platform between 0 degree and 90 degrees. Thus in the retracted condition the top and bottom bracing mechanisms 5-1 of the rig floor are generally horizontal. Because the support rails are generally horizontally mounted, when the overturning oil cylinder is in the extending and contracting limit states, the top and bottom support mechanisms of the drilling machine platform are respectively parallel and vertical to the extending direction of the suspension arm.
And a boom driving chain group 6 and a walking driving chain group 7 are respectively arranged between the front end and the rear end of each of the boom and the support guide rail, the boom driving chain group and the walking driving chain group are respectively arranged below the boom and above the support guide rail, and both the boom driving chain group and the walking driving chain group penetrate through the box body of the walking box from front to back and are respectively meshed with a first chain wheel group 2-1 and a second chain wheel group 2-2 which are coaxially and synchronously rotated in the walking box for transmission. In the present embodiment, the second sprocket group is disposed on the left and right outer sides, and the first sprocket group is disposed in the middle in the left-right direction. And the boom driving chain group and the walking driving chain group respectively bypass from the lower part of the first chain wheel group and the upper part of the second chain wheel group. The first chain wheel set and the second chain wheel set are driven by the driving devices 2-7 of the walking box to rotate in a fixed shaft mode.
The first chain wheel set drives the suspension arm, and the second chain wheel set provides driving force for the walking box. When the first chain wheel set and the second chain wheel set rotate, the suspension arm stretches and slides simultaneously in opposite directions at a fixed speed ratio relative to the walking box and the walking box relative to the supporting guide rail, double-stage moving stretching is achieved, and the transferring efficiency of the drilling machine platform is higher. The fixed speed ratio is represented by that the moving distance of the suspension arm relative to the walking box is always proportional to the moving distance of the walking box relative to the supporting guide rail in the same time period, and the ratio of the moving distances is equal to the gear ratio of the first chain wheel group and the second chain wheel group. The tooth number ratio of the first chain wheel set and the second chain wheel set can be changed according to different working condition requirements, and the change of the proportion of the moving distance of the suspension arm relative to the walking box and the walking box relative to the supporting guide rail in the same time is realized.
And a group of chain tensioning wheel sets 2-8 can be respectively arranged at the front side and the rear side of the first chain wheel set 2-1 and the second chain wheel set 2-2 in the box body of the walking box, and tensioning wheels for the suspension arm driving chain set and the walking driving chain set are simultaneously arranged in each group of chain tensioning wheel sets. The boom drive chain group preferably bypasses below the first chain wheel group and above the two chain tensioning wheel groups, and the walking drive chain group preferably bypasses above the second chain wheel group and below the two chain tensioning wheel groups, so that the corresponding chain groups are tensioned and simultaneously present a plurality of continuous S-shaped windings, and the risk of chain dropping is reduced.
The driving device can be arranged on the left side surface or the right side surface outside the box body, and an output shaft of the driving device penetrates through the box body and outputs power to the first chain wheel set and the second chain wheel set simultaneously.
The suspension arm is preferably of a box-type structure so as to improve rigidity and reduce deformation caused by large distance of the suspension arm when the suspension arm stretches.
The drilling machine platform can also comprise a translation mechanism 5-2 which is respectively positioned at the left and the right of the top-bottom supporting mechanism, besides the top-bottom supporting mechanism 5-1, and the translation mechanism moves left and right relative to the top-bottom supporting mechanism through the stretching of an oil cylinder. Each translation mechanism is provided with a telescopic oil cylinder, a fine adjustment oil cylinder, a rotary oil cylinder and a drilling machine mounting frame 5-3, and the anchor rod drilling machines can be mounted on the corresponding drilling machine mounting frames through screws, pins and the like, so that the movable telescopic platform can carry two anchor rod drilling machines simultaneously. The drilling machine mounting frame can respectively perform translation in one direction and fixed-axis rotation in two directions relative to the main body of the translation mechanism under the action of the corresponding telescopic oil cylinder, the fine adjustment oil cylinder and the rotary oil cylinder, so that the position and angle adjustment of the drilling machine mounting frame is realized, namely the position and angle adjustment of the drilling machine is realized. The direction of the translation is vertical to the axial direction of the rotation of the two fixed shafts.
When the anchor rod support is not supported, the anchor rod drilling machine is positioned at the rear upper part of the machine body of the roadway heading machine, the cutting space area is not occupied, and when the support is required, the flexible platform stably sends the anchor rod drilling machine to the working area, so that the transportation task of the anchor rod drilling machine during the anchor rod support working is realized. In this embodiment, the drilling platform is moved to the head of the working face through the boom and the traveling box in a two-stage pushing manner, and the drilling platform is in a vertical working position after the turnover cylinder is contracted and is in a supporting or supporting preparation state, as shown in fig. 7. When the supporting operation is executed, the top-bottom supporting mechanism 5-1 extends out in the upper direction and the lower direction simultaneously through the oil cylinder to be supported between the roadway top plate and the roadway bottom plate, and main positioning is realized. And the left translation mechanism and the right translation mechanism move away from the left and the right respectively by a certain distance to determine the approximate position of the drilling machine. And then, the position and the direction angle of the mounting frame of the drilling machine are adjusted in a small range through three groups of oil cylinders, namely the telescopic oil cylinder, the fine adjustment oil cylinder and the rotary oil cylinder, in the translation mechanism, so that the anchor rod drilling machine can be positioned on different hole sites of the roadway roof and floor, namely the anchor rod drilling machine is positioned in different space postures through the cooperation of a plurality of groups of oil cylinders. Therefore, the movable telescopic platform can also provide stable support and positioning for the anchor rod drilling machine.
The telescopic oil cylinder, the fine adjustment oil cylinder and the rotary oil cylinder can drive the drill mounting frame to respectively realize radial (horizontal towards the direction of two sides of the roadway), linear displacement, radial section (vertical to the extending direction of the roadway) inner angular displacement and axial section (horizontal plane) inner angular displacement so as to realize accurate positioning of the anchor rod drill to hole sites at different positions.
On the basis of the various mobile telescopic platforms, the following structure optimization can be carried out on the walking box:
the lower parts of the front end and the rear end of the box body of the walking box are respectively provided with a walking supporting wheel set 2-3 and a lower slideway 2-4, and a left sliding chute and a right sliding chute of the lower slideway respectively surround the left side edge and the right side edge of the supporting guide rail from the left side and the right side, so that the walking box is bestrided on the supporting guide rail. The lower slideway is in front-back sliding fit with the supporting guide rail, so that the walking direction of the walking box can be correctly guided. The walking supporting wheel set is supported on the supporting guide rail in a rolling mode, so that friction force generated when the walking box walks relative to the supporting guide rail is reduced, and the walking box walks more smoothly relative to the supporting guide rail. The walking supporting wheel set comprises a left walking supporting wheel and a right walking supporting wheel which are respectively supported on a left rail and a right rail of the supporting guide rail in a rolling manner.
The upper parts of the front end and the rear end of the box body of the walking box can be provided with upper slideways 2-5. The left and right outer sides of the suspension arm are provided with side wings which extend forwards and backwards and protrude outwards towards the left and right sides respectively, the side wings are inserted into the upper slide way to be matched with the upper slide way in a sliding mode forwards and backwards, and the upper slide way provides guiding for the forward and backward movement of the suspension arm.
The upper part of the front end of the box body of the walking box can be provided with a supporting guide wheel set 2-6. The supporting guide wheel set comprises a left supporting wheel, a right supporting wheel and a guide wheel which is arranged at the back of the middle, and wheel shafts of the supporting wheels and the guide wheel horizontally extend from left to right. The supporting wheel provides main support for the suspension arm, and the guide wheel provides auxiliary support for the suspension arm. The guide wheel is provided with a middle groove, the bottom of the suspension arm is provided with a guide strip, the guide strip is embedded into the middle groove and is in sliding connection with the middle groove in a matched mode, and the effect of limiting the radial movement displacement of the suspension arm is achieved. The support guide wheel set provides rolling support for the suspension arm from the lower part, so that the friction force generated when the suspension arm slides forwards and backwards is reduced, and the stability of the movement process of the suspension arm is kept.
Claims (8)
1. A mobile telescopic platform is characterized in that: the drilling machine platform comprises a supporting guide rail, a walking box, a suspension arm, a turnover oil cylinder and a drilling machine platform, wherein the walking box straddles above the supporting guide rail and can walk back and forth along the supporting guide rail, the suspension arm is arranged on the walking box, the extending direction of the suspension arm is the same as that of the supporting guide rail and can slide back and forth relative to the walking box, one part of the drilling machine platform is hinged with the front end of the suspension arm, the other part of the drilling machine platform is hinged with one end of the turnover oil cylinder, the other end of the turnover oil cylinder is hinged with the suspension arm, all hinged axes horizontally extend left and right, when the turnover oil cylinder is in an extended or contracted limit state, a top-bottom supporting mechanism of the drilling machine platform is in a vertical upright state, a suspension arm driving chain group and a walking driving chain group are respectively arranged between the front end and the rear end of the suspension arm and the, the suspension arm driving chain set and the walking driving chain set respectively bypass from the lower part of the first chain wheel set and the upper part of the second chain wheel set, and the first chain wheel set and the second chain wheel set are driven by a driving device of the walking box to rotate in a fixed shaft mode.
2. The mobile telescopic platform of claim 1, wherein: a set of chain tensioning wheel set is still arranged respectively to first sprocket group and second sprocket group's front and back both sides in the box of walking case, davit drive chain group is walked around from the top of chain tensioning wheel set, walking drive chain group is walked around from the below of chain tensioning wheel set.
3. The mobile telescopic platform of claim 1, wherein: the driving device is installed on the left side face or the right side face outside the box body, and an output shaft of the driving device penetrates through the box body and outputs power to the first chain wheel set and the second chain wheel set simultaneously.
4. The mobile telescopic platform of claim 1, wherein: the suspension arm is of a box-type structure.
5. The mobile telescopic platform of claim 1, wherein: the drilling machine platform further comprises translation mechanisms which are located on the left side and the right side of the top-bottom supporting mechanism respectively, the translation mechanisms are opposite to the top-bottom supporting mechanism in a telescopic mode through oil cylinders and move left and right, each translation mechanism is provided with a telescopic oil cylinder, a fine adjustment oil cylinder, a rotary oil cylinder and a drilling machine mounting frame, the drilling machine mounting frame respectively conducts translation in one direction and fixed shaft rotation in two directions under the action of the corresponding telescopic oil cylinder, the fine adjustment oil cylinder and the rotary oil cylinder, and the translation direction is perpendicular to the axis direction of the rotation of the two fixed shafts.
6. The mobile telescopic platform of claim 1, 2, 3, 4 or 5, wherein: walking support wheelset and glide slope are installed respectively to the lower part at both ends around the box of walking case, the left and right spout of glide slope surrounds respectively on the left and right side edge of supporting guide rail from the left and right sides, glide slope and supporting guide rail front and back sliding fit, walking support wheelset rolls and supports on supporting guide rail.
7. The mobile telescopic platform of claim 1, 2, 3, 4, 5 or 6, wherein: support direction wheelset and last slide are installed respectively to the upper portion at preceding, back both ends of the box of walking case, the left and right outside of davit is provided with the front and back and extends and respectively left and right side flank of evagination, the flank inserts in the last slide with sliding fit around the last slide, support direction wheelset from the below do the davit provides the support that rolls.
8. The mobile telescopic platform of claim 7, wherein: the supporting guide wheel set comprises a left supporting wheel, a right supporting wheel and a guide wheel which is arranged at the back of the middle of the supporting wheel set, the guide wheel is provided with a middle groove, the bottom of the suspension arm is provided with a guide strip, and the guide strip is embedded into the middle groove and is in sliding connection with the middle groove in a matched mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110006638.6A CN112664145A (en) | 2021-01-05 | 2021-01-05 | Movable telescopic platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110006638.6A CN112664145A (en) | 2021-01-05 | 2021-01-05 | Movable telescopic platform |
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| CN112664145A true CN112664145A (en) | 2021-04-16 |
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| CN202110006638.6A Pending CN112664145A (en) | 2021-01-05 | 2021-01-05 | Movable telescopic platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700493A (en) * | 2021-10-28 | 2021-11-26 | 三一重型装备有限公司 | Supporting component behind entry driving machine and entry driving machine |
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2021
- 2021-01-05 CN CN202110006638.6A patent/CN112664145A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700493A (en) * | 2021-10-28 | 2021-11-26 | 三一重型装备有限公司 | Supporting component behind entry driving machine and entry driving machine |
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