CN214836458U - Machine carries and removes flexible supporting device - Google Patents

Abstract

The utility model relates to an onboard mobile telescopic support device, which comprises a base, a walking trolley, a cantilever girder, a pitching oil cylinder and a drilling machine mechanism; the base, the walking trolley and the cantilever girder are sequentially stacked from bottom to top, and both the base and the cantilever girder extend along the front-back direction; the lower part of the cantilever girder and the upper part of the base are respectively provided with an upper pin row and a lower pin row which extend forwards and backwards, the walking trolley is provided with a driving gear and a motor, the driving gear is simultaneously meshed with the upper pin row and the lower pin row, and under the meshing action of the driving gear and the upper pin row and the lower pin row, the walking trolley can walk forwards and backwards on the base in a reciprocating way to drive the cantilever girder to slide forwards and backwards relative to the base; the drilling machine mechanism is connected in front of the cantilever main beam, and a top-bottom supporting mechanism on the drilling machine mechanism is turned and switched between two postures of vertical and horizontal directions under the driving of the telescopic pitching oil cylinder. The utility model discloses adaptability to the abominable operational environment in coal mine tunnel is stronger, and more can adapt to the demand that large-scale coal road tunneled fast, high-efficient was strutted.

Description

Machine carries and removes flexible supporting device

Technical Field

The utility model relates to a novel machine carries and removes flexible supporting device can install on various entry driving machine upper portions, can send anchor rig mechanism to the working face, with the cooperation operation of tunnelling action, realizes tunnelling and anchor all-in-one function, belongs to coal mine tunnel tunnelling equipment technical field.

Background

The traditional roadway support generally adopts a separation mode of tunneling and support equipment, so that the support operation staff is more, the labor intensity is high, and the working environment is severe. Although the structural form that the machine-mounted jumbolter is additionally arranged on two sides of a cutting arm or two sides of a machine body of a conventional heading machine is adopted at present, the manual operation intensity can be reduced to a certain extent, the form still takes heading as a main part and support as an auxiliary part and is mainly used for small and medium-sized roadways.

For large roadways, the conventional scheme is to install a movable telescopic supporting device on the middle rear part of the heading machine, carry a drilling machine mechanism by using a telescopic arm in the movable telescopic supporting device, convey the drilling machine mechanism to the head of a working face or retract the drilling machine mechanism to the upper part of the rear part of the heading machine by using the telescopic motion of the telescopic arm, and realize the advance and retreat of the drilling machine mechanism. The transmission system of the existing movable telescopic support device has poor adaptability to the severe working environment of a coal mine roadway, and the transmission system is easy to break down due to accumulation or blockage of pulverized coal. In addition, along with the requirement of realizing multi-point support by one-time conveying in a large roadway, the extension length of the telescopic arm is increased, and higher requirements are provided for the stability and reliability of the movement of the movable telescopic support device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a machine carries and removes flexible supporting device, its adaptability to the abominable operational environment in coal mine tunnel is stronger, and more can adapt to the demand that large-scale coal road tunneled fast, high-efficient was strutted.

The utility model discloses a main technical scheme has:

an airborne mobile telescopic supporting device comprises a base, a walking trolley, a cantilever girder, a pitching oil cylinder and a drilling machine mechanism, wherein the main body of the cantilever girder and the main body of the base are both of a hollow box-shaped structure with a rectangular cross section, the base, the walking trolley and the cantilever girder are sequentially overlapped from bottom to top, the base and the cantilever girder extend along the front-back direction, an upper pin row and a lower pin row which extend back and forth are respectively arranged at the lower part of the cantilever girder and the upper part of the base, a driving gear and a power source for driving the driving gear to rotate are arranged on the walking trolley, the driving gear is simultaneously meshed with the upper pin row and the lower pin row, the walking trolley can reciprocate back and forth on the base under the meshing action of the driving gear and the upper pin row and the lower pin row, the cantilever girder can be driven to slide back and forth relative to the base, and the drilling machine mechanism is hinged with the front end of the cantilever girder, the other part of the drilling machine is hinged with one end of the pitching oil cylinder, the other end of the pitching oil cylinder is hinged with the cantilever main beam, the hinge axes of all the hinged parts horizontally extend leftwards and rightwards, and under the driving of the telescopic pitching oil cylinder, a top-bottom supporting mechanism on the drilling machine mechanism is converted between a vertical upright posture and a front-back horizontal posture.

A lower guide structure is further arranged between the base and the walking trolley, and an upper guide structure is further arranged between the walking trolley and the cantilever main beam.

The left side and the right side of the lower part at the front end and the rear end of the walking trolley are respectively provided with a group of lower limiting wheel groups, the left and the right sides of the two groups of lower limiting wheel groups are arranged symmetrically left and right oppositely, each group of lower limiting wheel groups comprises an upper row of roller groups and a lower row of roller groups, the left edge and the right edge of the upper part of the base are arranged to extend forwards and backwards and are respectively protruded outwards leftwards and rightwards, the left side wing and the right side wing of the base are respectively positioned between the upper row of roller groups and the lower row of roller groups in the lower limiting wheel groups at the left side and the right side and are simultaneously contacted with the corresponding upper row of roller groups and the lower row of roller groups, each row of roller groups comprises rollers with the same specification, and the left side wing of the base and the right side wing of the base and the corresponding lower limiting wheel groups form the lower guide structure.

The upper portion left and right sides at both ends is equipped with a set of top spacing wheelset separately around the walking dolly, and controls bilateral symmetry between the relative two sets of top spacing wheelset and arrange, and every group top spacing wheelset includes two rows of roller groups from top to bottom, the left and right edges of lower part of cantilever girder set up to extend around and respectively left, the girder left side flank and the girder right side flank of right side evagination, girder left side flank and girder right side wing are located respectively between two rows of roller groups from top to bottom in the top spacing wheelset of the left and right sides to contact with two rows of roller groups from top to bottom simultaneously, and every row of roller group includes the same specification gyro wheel that sets up in pairs from beginning to end, and girder left side flank and girder right side flank constitute with the corresponding top spacing wheelset go up guide structure.

The upper surfaces of the left main beam side wing and the right main beam side wing are preferably provided with upper guide rails extending forwards and backwards, the cross section of each upper guide rail is in a trapezoid shape with a narrow upper part and a wide lower part, a top surface consisting of a left inclined surface, a right inclined surface and a horizontal surface in the middle is formed, the roller wheel surfaces of the upper row of roller groups in the upper limiting wheel set are arranged into a left conical surface, a right conical surface and a middle cylindrical surface, an inwards concave trapezoid cross section outline is formed, the two conical surfaces of the rollers of the upper row of roller groups in the upper limiting wheel set are in contact with the left inclined surface and the right inclined surface of the upper guide rail, and the cylindrical surfaces of the rollers of the upper row of roller groups in the upper limiting wheel set are vertically opposite to but not in contact with the horizontal surface of the upper guide rail.

The lower surfaces of the left base flank and the right base flank are preferably provided with lower guide rails extending forwards and backwards, the cross section of each lower guide rail is in a trapezoid shape with a wide upper part and a narrow lower part, a bottom surface consisting of a left inclined surface, a right inclined surface and a horizontal surface in the middle is formed, the roller wheel surfaces of the lower row of roller sets in the lower limiting wheel set are arranged into a left conical surface, a right conical surface and a middle cylindrical surface, an inwards concave trapezoid cross section profile is formed, the two conical surfaces of the rollers of the lower row of roller sets in the lower limiting wheel set are in contact with the left inclined surface and the right inclined surface of the lower guide rail, and the cylindrical surfaces of the rollers of the lower row of roller sets in the lower limiting wheel set are vertically opposite to but not in contact with the horizontal surface of the lower guide rail.

The rollers of the lower row of roller groups in the upper limiting wheel group and the rollers of the upper row of roller groups in the lower limiting wheel group are both cylindrical.

The lower surfaces of the left main beam side wing and the right main beam side wing can be respectively provided with a main beam wear-resistant flat plate extending forwards and backwards, the lower row of roller groups in the upper limiting wheel set is in contact with the main beam wear-resistant flat plate, the upper surfaces of the left base side wing and the right base side wing can be respectively provided with a base wear-resistant flat plate extending forwards and backwards, and the upper row of roller groups in the lower limiting wheel set is in contact with the base wear-resistant flat plate.

The walking trolley comprises a left side plate and a right side plate, and the power source is installed on the left side plate or the right side plate and is positioned on the left or right outer side of the walking trolley. The driving gear is positioned between the left side plate and the right side plate. The upper limit wheel set and the lower limit wheel set are installed on the left side plate and the right side plate in pairs and are positioned on the outer sides of the left side plate and the right side plate.

The power source adopts a motor or a hydraulic motor with low rotating speed and large torque, and the power source directly drives the driving gear.

The utility model has the advantages that:

the utility model discloses can independently carry on the tunnelling machine for automatic steadily transport the roofbolter to meeting the head in the tunnel support process, and through the flexible of control every single move hydro-cylinder, realize the top end supporting mechanism automatically and change between operating condition and the state of withdrawing, can not only alleviate manual work intensity, can also realize the accuracy of operation, the top end supporting mechanism is withdrawn the back and is not taken tunnelling machine cutting area territory, does not influence the operation of cutting.

The mutual relative linear reciprocating motion between the walking trolley and the base and between the cantilever main beam and the walking trolley is realized through the meshing of the driving gear and the pin row, the structure of the joint is simple, the bearing capacity is improved compared with that of gear transmission, chain transmission and the like, the requirement on the environment is lower, the working reliability is higher, and the heavy-load severe environment of the coal roadway can be better adapted.

By arranging the upper limit wheel set and the lower limit wheel set on the walking trolley, arranging the girder side wing on the cantilever girder and arranging the base side wing on the base, the movement guidance and the accurate limit between the base and the walking trolley and between the walking trolley and the cantilever girder are realized, and the linear directions of two sets of front and back horizontal linear reciprocating motions are ensured not to deviate. And the friction of the guide structure is small, so that the two groups of linear reciprocating motions cannot be hindered, and the smooth motion is ensured.

A plurality of rollers are preferably arranged in the upper and lower rows of roller groups, the rollers are arranged in pairs in the embodiment shown in the attached drawing, the number of the rollers in the roller groups is large, which is equivalent to increasing contact points, and the stress is dispersed at multiple points, so that the service life of the rollers is prolonged. On the basis, the size of a single roller can be reduced, so that the structure of the supporting device is more compact.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

FIG. 3 is a schematic perspective view of the boom main beam and pitch cylinder of FIG. 2;

FIG. 4 is a schematic perspective view of the walking trolley shown in FIG. 2;

FIG. 5 is a schematic perspective view of the base of FIG. 2;

FIG. 6 is a schematic perspective view of the drill mechanism of FIG. 2;

FIG. 7 is a cross-sectional view A-A of FIG. 2;

fig. 8 is a schematic view of the onboard mobile telescopic support device installed at the rear upper part of a main machine of a certain heading machine and in a parking position;

fig. 9 is a schematic view of the state of the onboard mobile telescopic support device installed at the rear upper part of a main machine of a certain heading machine and at the longest cantilever working position.

Reference numerals:

A. an onboard mobile telescopic support device; B. a heading machine;

1. a cantilever girder; 1-1, arranging a pin row; 1-2, main beam side wing;

2. a walking trolley; 2-1, driving gear, 2-2, hydraulic motor, 2-3, upper limit wheel set, 2-4, lower limit wheel set;

3. a base; 3-1, arranging a lower pin row; 3-2. base side flaps;

4. a drilling mechanism; 4-1, a top and bottom supporting mechanism;

5. and a pitching oil cylinder.

Detailed Description

The utility model discloses an onboard mobile telescopic supporting device A, as shown in figures 1-9, comprising a base 3, a walking trolley 2, a cantilever girder 1, a pitching oil cylinder 5 and a drilling machine mechanism 4. The main body of the cantilever girder and the main body of the base are both hollow box-type structures with rectangular cross sections so as to keep higher rigidity, and particularly for the cantilever girder, the deformation of a cantilever part when the cantilever girder stretches can be reduced as much as possible. The base is the installation basis of machine-mounted mobile telescopic supporting device, machine-mounted mobile telescopic supporting device accessible the base is independently installed in the upper portion top surface of tunnelling machine B, can use the cushion leveling, fastens with the bolt. The base, the walking trolley and the cantilever girder are sequentially stacked from bottom to top. The base and the cantilever girder are both in a slender shape, and the extending directions of the base and the cantilever girder are the same. When the onboard mobile telescopic support device is installed on the heading machine, the onboard mobile telescopic support device extends along the front-back direction of the heading machine. The lower part of the cantilever girder and the upper part of the base are respectively provided with an upper pin row 1-1 and a lower pin row 3-1 which are arranged in a front-back extending way, and the walking trolley is provided with a driving gear 2-1 and a power source for driving the driving gear to rotate. The drive gear is simultaneously engaged with the upper pin row and the lower pin row. Under the meshing action of the driving gear and the upper pin row and the lower pin row, when the driving gear rotates, the walking trolley can walk back and forth on the base in a reciprocating mode, the cantilever girder is driven to slide back and forth relative to the walking trolley, and therefore the cantilever girder can move and stretch relative to the base. In the view of fig. 2, when the drive gear rotates counterclockwise, the cantilever girder slides forward relative to the base at twice the speed of the traveling carriage relative to the base.

One part of the drilling machine mechanism can be hinged with the front end of the cantilever girder through a pin shaft, the other part of the drilling machine mechanism is hinged with one end of the pitching oil cylinder, and the other end of the pitching oil cylinder is hinged with the cantilever girder. In the embodiment shown in the attached drawings, the hinge joint of the cantilever main beam and the drilling machine mechanism is positioned in front of and above the hinge joint of the cantilever main beam and the pitching cylinder. The hinge axes of the hinges extend horizontally from left to right. The cantilever girder can drive the drilling machine mechanism to slide back and forth. The drilling machine mechanism is used for carrying the anchor rod drilling machine, when the anchor rod drilling machine is not supported, the anchor rod drilling machine is positioned at the rear upper part of the machine body of the roadway heading machine, a cutting space area is not occupied, when the support is needed, the cantilever main beam slides forwards to send the anchor rod drilling machine to a working area, and therefore the transportation task of the anchor rod drilling machine during anchor rod support working is achieved. The drilling machine mechanism can be provided with 2 or 4 jumbolters according to the requirements, and in the embodiment shown in the drawing, the drilling machine mechanism is provided with one jumbolter at the left and right. The pitching oil cylinder can stretch and retract to drive the drilling machine mechanism to turn. And under the telescopic driving of the pitching oil cylinder, a top-bottom supporting mechanism on the drilling machine mechanism is converted between a vertical upright posture and a front-back horizontal posture. In this embodiment, when the pitch cylinder is in the retracted limit state, the top-bottom support mechanism 4-1 of the drilling machine mechanism is in a vertical upright state (see fig. 9), that is, the drilling machine mechanism enters a working state of support or support preparation, and when the pitch cylinder is in the extended limit state, the drilling machine mechanism is in a retracted non-working state (see fig. 8). The pitch rams are preferably used to effect tilting of the rig mechanism between 0 ° and 90 °. Thus in the retracted state the top and bottom bracing mechanisms 4-1 of the drill mechanism are generally horizontal. Because the base is generally horizontally arranged, when the pitching cylinder is in the extending and contracting limit states, the top and bottom supporting mechanisms of the drilling machine mechanism are respectively parallel and vertical to the extending direction of the main beam of the cantilever.

The mutual relative linear reciprocating motion between the walking trolley and the base and between the cantilever main beam and the walking trolley is realized through the meshing of the driving gear and the pin row, the structure of the joint is simple, the bearing capacity is improved compared with that of gear transmission, chain transmission and the like, the requirement on the environment is lower, the working reliability is higher, and the heavy-load severe environment of the coal roadway can be better adapted.

The driving gear and the upper and lower pin row surface layers are subjected to hardness strengthening treatment and corrosion prevention treatment, and the service life of the airborne mobile telescopic supporting device is further prolonged.

And a lower guide structure and an upper guide structure are respectively arranged between the base and the walking trolley and between the walking trolley and the cantilever girder and are respectively used for ensuring that the relative reciprocating movement between the walking trolley and the base and between the cantilever girder and the walking trolley can be along the front-back straight line direction.

The left side and the right side of the lower part of the front end and the rear end of the walking trolley are respectively provided with a group of lower limiting wheel sets 2-4, and the two groups of lower limiting wheel sets which are opposite to each other left and right are arranged in a left-right symmetrical mode. Each lower limiting wheel group comprises an upper row of roller groups and a lower row of roller groups. The left edge and the right edge of the lower part of the base are arranged into a left base side wing and a right base side wing which extend forwards and backwards and protrude outwards to the left side and the right side respectively, and the left base side wing and the right base side wing can be collectively called as base side wings 3-2. The left side wing and the right side wing of the base are respectively positioned between the upper row of roller groups and the lower row of roller groups in the lower limiting wheel groups on the left side and the right side and are simultaneously contacted with the corresponding upper row of roller groups and the lower row of roller groups. The left side wing and the right side wing of the base and the corresponding lower limiting wheel set form the lower guide structure. In the process that the walking trolley moves back and forth relative to the base, the walking trolley keeps a front and back horizontal linear moving track under the rolling guidance of the rollers of the upper and lower rows of roller groups in the lower limiting wheel group.

The left side and the right side of the upper part of the front end and the rear end of the walking trolley are respectively provided with a group of upper limiting wheel sets 2-3, and the two groups of upper limiting wheel sets which are opposite to each other in the left-right direction are symmetrically arranged in the left-right direction. Each upper limiting wheel group comprises an upper row of roller groups and a lower row of roller groups. The left edge and the right edge of the lower part of the cantilever main beam are arranged into a main beam left side wing and a main beam right side wing which extend forwards and backwards and protrude outwards to the left side and the right side respectively, and the main beam left side wing and the main beam right side wing can be collectively called as main beam side wings 1-2. The left side wing and the right side wing of the main beam are respectively positioned between the upper row of roller groups and the lower row of roller groups in the upper limiting wheel groups at the left side and the right side and are simultaneously contacted with the corresponding upper row of roller groups and the lower row of roller groups. The main beam left flank and the main beam right flank and the corresponding upper limiting wheel set form the upper guiding structure. In the process that the cantilever girder slides forwards and backwards relative to the walking trolley, the cantilever girder keeps a front-back horizontal linear moving track under the rolling guidance of the rollers of the upper and lower rows of roller groups.

No matter be the spacing wheelset in top or the spacing wheelset in below, all prefer a plurality of same specification gyro wheels that set up in pairs including the front and back in the upper row roller train and the lower row roller train wherein to increase the fulcrum, the multiple spot dispersion atress prolongs the life of gyro wheel, can also reduce the size of single gyro wheel, makes strutting arrangement's structure more compact.

The upper limit wheel set and the lower limit wheel set are adopted to participate in realizing the guiding function, rolling friction is adopted between the walking trolley and the base and between the walking trolley and the cantilever main beam, the friction force is smaller during walking guiding, and the two groups of front and back horizontal reciprocating motion are smoother.

Two groups of upper limiting wheel sets and two groups of lower limiting wheel sets are respectively arranged at the front end and the rear end of the walking trolley, so that the upper guide structure and the lower guide structure can play a direct role in a distance range as long as possible. Similarly, a walking trolley with a longer length can be adopted as much as possible, so that the stress of each roller is reduced.

Furthermore, the upper surfaces of the left main beam side wing and the right main beam side wing are preferably respectively provided with upper guide rails extending forwards and backwards, the cross section of each upper guide rail is in a trapezoid shape with a narrow top and a wide bottom, and a top surface consisting of a left inclined surface, a right inclined surface and a middle horizontal plane is formed. The roller wheel surfaces of the upper row of roller groups in the upper limiting wheel group are arranged into a left conical surface, a right conical surface and a middle cylindrical surface to form an inwards concave trapezoidal section outline. Two sections of conical surfaces of the rollers of the upper row of roller groups in the upper limiting wheel group are in contact with the left inclined surface and the right inclined surface of the upper guide rail, and the cylindrical surfaces of the rollers of the upper row of roller groups in the upper limiting wheel group are vertically opposite to the horizontal surface of the upper guide rail but are not in contact with the horizontal surface of the upper guide rail. The contact rolling between the upper row of roller groups in the upper limiting wheel set and the upper guide rail is the core of the upper guide.

The lower surfaces of the left side wing and the right side wing of the base are respectively provided with lower guide rails extending forwards and backwards, the cross section of each lower guide rail is in a trapezoid shape with a wide upper part and a narrow lower part, and a bottom surface consisting of a left inclined plane, a right inclined plane and a middle horizontal plane is formed. The roller wheel surface of the lower row of roller groups in the lower limiting wheel group is arranged into a left conical surface, a right conical surface and a middle cylindrical surface to form an inwards concave trapezoidal section outline. Two sections of conical surfaces of the rollers of the lower row of roller groups in the lower limiting wheel group are in contact with the left inclined surface and the right inclined surface of the lower guide rail, and the cylindrical surfaces of the rollers of the lower row of roller groups in the lower limiting wheel group are vertically opposite to the horizontal surface of the lower guide rail but are not in contact with the horizontal surface of the lower guide rail. The contact rolling between the lower row of roller groups in the lower limiting wheel set and the lower guide rail is the core of lower guiding.

The left inclined plane and the right inclined plane are arranged on the upper guide rail and the lower guide rail, so that the relevant linear reciprocating motion is prevented from deviating to the left direction and the right direction, and the airborne mobile telescopic supporting device is more suitable for the heavy-load severe environment of the coal roadway.

The rollers of the upper and lower roller groups in the upper and lower limiting wheel groups preferably adopt two different specifications of rollers. The roller of the lower row of roller groups in the upper limiting wheel set and the roller of the upper row of roller groups in the lower limiting wheel set can adopt cylindrical rollers, so that higher bearing capacity can be obtained through a simpler structure. The roller with the concave trapezoidal section profile has the main function of guiding and bearing.

Correspondingly, the lower surfaces of the left main beam flank and the right main beam flank are preferably provided with main beam wear-resistant flat plates extending forwards and backwards, and the lower row of roller groups in the upper limiting wheel group is in contact with the main beam wear-resistant flat plates; the upper surfaces of the left base side wing and the right base side wing are preferably provided with base wear-resistant flat plates extending front and back, and the upper row of roller groups in the lower limiting wheel set are in contact with the base wear-resistant flat plates. Because the main beam wear-resistant flat plate and the base wear-resistant flat plate are subjected to wear-resistant treatment, the service life can be kept longer. Similarly, the left and right slopes of the upper and lower rails are also preferably subjected to wear-resistant treatment.

And bearings are arranged between the rollers and the corresponding roller shafts, and can be sliding bearings or rolling bearings. Under the condition that the diameters of the rollers are the same, the bearable force of the sliding bearing is larger, the structural size can be smaller, and the sealing structure is simpler. The sealed bearing is preferably adopted as the bearing, so that the working reliability is improved.

The rigidity of the cantilever girder can be improved by arranging a plurality of reinforcing rib plates at the front and back of the inner cavity of the cantilever girder at intervals, so that the cantilever girder can adapt to larger overhang and can carry more drilling machines to meet the requirement of multi-point support in a large coal roadway. The cantilever girder in the embodiment can bear 4 tons of drilling machine mechanism load under the condition of overhanging for 5 meters.

For the cantilever main beam, a bottom plate of the box-type structure of the cantilever main beam stretches beyond the left side surface and the right side surface of the box body in the left-right direction, and the exceeding parts form a foundation structure of the main beam left side wing and the main beam right side wing. The upper guide rail is arranged on the upper surface of the exceeding part, the main beam wear-resistant plate is fixed on the lower surface of the exceeding part, and the upper guide rail, the main beam wear-resistant plate and the exceeding part form the main beam left flank and the main beam right flank together. For the base, the top plate of the box-type structure of the base is cantilevered to the left and right sides of the box body, and the protruding part forms a foundation structure of the left side wing and the right side wing of the base. The lower guide rail is arranged on the lower surface of the exceeding part, the base wear-resistant flat plate is fixed on the upper surface of the exceeding part, and the lower guide rail, the base wear-resistant flat plate and the exceeding part form the left base side wing and the right base side wing together.

The upper pin row is installed below a bottom plate of the cantilever girder through a support, and the lower pin row is installed above a top plate of the base through a support. The upper pin row is located in the middle of the bottom plate of the cantilever girder in the front-back left-right direction, and the lower pin row is located in the middle of the top plate of the base in the front-back left-right direction.

The walking trolley can comprise a left side plate and a right side plate, the power source is installed on the left side plate or the right side plate, and the driving gear is located between the left side plate and the right side plate. Specifically, the output end of the power source is coaxially and fixedly connected with one end of a transmission shaft, the other end of the transmission shaft is rotatably connected to the right side plate or the left side plate, and the driving gear is coaxially sleeved and fixed on the transmission shaft.

The upper limiting wheel set and the lower limiting wheel set are installed on the left side plate and the right side plate in pairs, and each roller is located on the outer side of the corresponding left side plate or right side plate, namely the left side of the left side plate or the right side of the right side plate.

The power source can adopt a low-speed and high-torque motor or a hydraulic motor 2-2. The power source directly drives the driving gear, namely a speed reducing mechanism is not arranged between the power source and the driving gear, so that the transmission system is simpler and more compact in structure, fewer in fault points and higher in working reliability.

The whole height of the airborne mobile telescopic supporting device is smaller than 1m, when the walking trolley moves to the front limit position, the length of a cantilever of the cantilever girder is 5m, the front section of the cantilever girder bears more than 4 tons of weight, and the deformation of the cantilever girder is very small.

The utility model discloses can be with rig mechanism propelling movement cantilever about 5 meters forward, can dispose the multiunit rig in the rig mechanism, for example 2 groups or 4 groups. After the device is stretched and fixed once, the device can be stopped, and a drilling machine at the front part can completely support one to two supporting row distances of a large coal roadway.

The utility model discloses can be used for the width to be greater than 4.5 meters, highly carry out a multiple spot in the large-scale coal road that is greater than 2.7 meters and strut.

Claims (10)

1. The utility model provides an airborne removes flexible supporting device which characterized in that: the drilling machine comprises a base, a walking trolley, a cantilever girder, a pitching oil cylinder and a drilling machine mechanism, wherein the main body of the cantilever girder and the main body of the base are both of a hollow box-shaped structure with a rectangular cross section, the base, the walking trolley and the cantilever girder are sequentially overlapped from bottom to top, the base and the cantilever girder both extend along the front-back direction, an upper pin row and a lower pin row which extend from front to back are respectively arranged at the lower part of the cantilever girder and the upper part of the base, a driving gear and a power source for driving the driving gear to rotate are arranged on the walking trolley, the driving gear is simultaneously meshed with the upper pin row and the lower pin row, under the meshing action of the driving gear and the upper pin row and the lower pin row, the walking trolley can walk back and forth on the base to drive the cantilever girder to slide back and forth relative to the base, one part of the drilling machine mechanism is hinged with the front end of the cantilever girder, the other part of the drilling machine mechanism is hinged with one end of the pitching oil cylinder, the other end of the pitching oil cylinder is hinged with the cantilever main beam, and under the telescopic driving of the pitching oil cylinder, a top-bottom supporting mechanism on the drilling machine mechanism is converted between a vertical upright posture and a front-back horizontal posture.

2. The airborne mobile telescopic support apparatus of claim 1, wherein: a lower guide structure is arranged between the base and the walking trolley, and an upper guide structure is arranged between the walking trolley and the cantilever main beam.

3. The airborne mobile telescopic support apparatus of claim 2, wherein: the left side and the right side of the lower part at the front end and the rear end of the walking trolley are respectively provided with a group of lower limiting wheel groups, the left and the right sides of the two groups of lower limiting wheel groups are arranged symmetrically left and right oppositely, each group of lower limiting wheel groups comprises an upper row of roller groups and a lower row of roller groups, the left edge and the right edge of the upper part of the base are arranged to extend forwards and backwards and are respectively protruded outwards leftwards and rightwards, the left side wing and the right side wing of the base are respectively positioned between the upper row of roller groups and the lower row of roller groups in the lower limiting wheel groups at the left side and the right side and are simultaneously contacted with the corresponding upper row of roller groups and the lower row of roller groups, each row of roller groups comprises rollers with the same specification, and the left side wing of the base and the right side wing of the base and the corresponding lower limiting wheel groups form the lower guide structure.

4. An airborne mobile telescopic support device according to claim 3, characterized in that: the upper portion left and right sides at both ends is equipped with a set of top spacing wheelset separately around the walking dolly, and controls bilateral symmetry between the relative two sets of top spacing wheelset and arrange, and every group top spacing wheelset includes two rows of roller groups from top to bottom, the left and right edges of lower part of cantilever girder set up to extend around and respectively left, the girder left side flank and the girder right side flank of right side evagination, girder left side flank and girder right side wing are located respectively between two rows of roller groups from top to bottom in the top spacing wheelset of the left and right sides to contact with two rows of roller groups from top to bottom simultaneously, and every row of roller group includes the same specification gyro wheel that sets up in pairs from beginning to end, and girder left side flank and girder right side flank constitute with the corresponding top spacing wheelset go up guide structure.

5. The airborne mobile telescopic support apparatus of claim 4, wherein: the upper surfaces of the left main beam side wing and the right main beam side wing are respectively provided with an upper guide rail extending forwards and backwards, the cross section of each upper guide rail is in a trapezoid shape with a narrow upper part and a wide lower part, a top surface consisting of a left inclined surface, a right inclined surface and a horizontal surface in the middle is formed, the roller wheel surfaces of the upper row of roller groups in the upper limiting wheel set are arranged into a left conical surface, a right conical surface and a middle cylindrical surface, an inwards concave trapezoid cross section outline is formed, the two conical surfaces of the rollers of the upper row of roller groups in the upper limiting wheel set are in contact with the left inclined surface and the right inclined surface of the upper guide rail, and the cylindrical surfaces of the rollers of the upper row of roller groups in the upper limiting wheel set are vertically opposite to but not in contact with the horizontal surface of the upper guide rail.

6. The airborne mobile telescopic support apparatus of claim 5, wherein: the lower surfaces of the left base flank and the right base flank are respectively provided with lower guide rails extending forwards and backwards, the cross section of each lower guide rail is in a trapezoid shape with a wide upper part and a narrow lower part, a bottom surface consisting of a left inclined surface, a right inclined surface and a horizontal surface in the middle is formed, the roller wheel surfaces of the lower row of roller sets in the lower limiting wheel set are arranged into a left conical surface, a right conical surface and a middle cylindrical surface, an inwards concave trapezoid cross section profile is formed, the two conical surfaces of the rollers of the lower row of roller sets in the lower limiting wheel set are in contact with the left inclined surface and the right inclined surface of the lower guide rail, and the cylindrical surfaces of the rollers of the lower row of roller sets in the lower limiting wheel set are vertically opposite to but not in contact with the horizontal surface of the lower guide rail.

7. The airborne mobile telescopic support apparatus of claim 6, wherein: the rollers of the lower row of roller groups in the upper limiting wheel group and the rollers of the upper row of roller groups in the lower limiting wheel group are both cylindrical.

8. The airborne mobile telescopic support apparatus of claim 7, wherein: the lower surfaces of the left main beam side wing and the right main beam side wing are respectively provided with a main beam wear-resistant flat plate extending forwards and backwards, the lower row of roller groups in the upper limiting wheel set is in contact with the main beam wear-resistant flat plate, the upper surfaces of the left base side wing and the right base side wing are respectively provided with a base wear-resistant flat plate extending forwards and backwards, and the upper row of roller groups in the lower limiting wheel set is in contact with the base wear-resistant flat plate.

9. An airborne mobile telescopic support apparatus according to claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that: the walking trolley comprises a left side plate and a right side plate, the power source is installed on the left side plate or the right side plate, the driving gear is located between the left side plate and the right side plate, and the upper limiting wheel set and the lower limiting wheel set are installed on the left side plate and the right side plate in pairs and located on the outer sides of the left side plate and the right side plate.

10. The airborne mobile telescopic support apparatus of claim 9, wherein: the power source adopts a low-rotating-speed large-torque motor or a hydraulic motor, and the power source directly drives the driving gear.

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