CN113914868A - Development machine - Google Patents

Abstract

The invention discloses a heading machine which comprises a rack, a plurality of supporting assemblies, a track, a driver, a carrying vehicle and a chain driving assembly. The plurality of supporting assemblies are arranged at intervals along the front-back direction of the rack, and the supporting assemblies are arranged on the rack; the track is arranged on the tops of the support assemblies and can move along the front-back direction of the rack; the driver is connected between the rail and the frame; the carrying vehicle is arranged on the track and can move along the extending direction of the track, the carrying vehicle is provided with a platform, the platform can be lifted and rotated, and the platform is provided with a clamping block; the chain drive assembly comprises a chain, and the carrying vehicle is connected with the chain. The heading machine can be used for forwards conveying the non-repeated supports while the roadway is forwards propelled, so that the heading machine is always supported by the non-repeated supports, and the heading machine has the advantage of high safety.

Description

Development machine

Technical Field

The invention relates to the technical field of roadway excavation, in particular to a heading machine with a trolley transportation system.

Background

In order to improve the safety of operation, the position of the head of the underground roadway needs to be supported in time, the roadway part close to the head of the underground roadway is usually supported by a non-repeated support, and the non-repeated support needs to move forwards along with the continuous propulsion of the roadway.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the invention provides the heading machine which can be used for forwards conveying the non-repeated supports while the roadway is forwards propelled, so that the heading machine is always supported by the non-repeated supports, and the heading machine has the advantage of high safety.

The heading machine comprises a rack and a plurality of supporting components, wherein the supporting components are arranged at intervals along the front-back direction of the rack, are arranged on the rack and are telescopic along the up-down direction; the track is arranged on the tops of the support assemblies and can move along the front-back direction of the rack; the driver is connected between the track and the rack, the length of the driver is adjustable to drive the track to move back and forth, one end of the driver is rotatably connected with the track, and the other end of the driver is rotatably connected with the rack to enable the driver to be capable of swinging and stretching when the track moves up and down; the carrying vehicle is arranged on the track and can move along the extending direction of the track, the carrying vehicle is provided with a platform, the platform can be lifted and rotated, a clamping block is arranged on the platform, and the clamping block is suitable for clamping and fixing a non-repeated support; the chain drive assembly comprises a chain, the carrier is connected with the chain, and the carrier moves back and forth through rotation of the chain.

The heading machine provided by the embodiment of the invention has the advantages that the heading machine can be used for carrying forward without repeated support while heading, and the safety is high.

In some embodiments, the support assembly includes a base arm, an inner arm, and a built-in oil cylinder, the base arm is fixed on the frame, a mounting cavity is provided in the base arm, an opening is provided at the top of the mounting cavity, the inner arm is guided and fitted in the mounting cavity, and the inner arm can extend out from the opening at the top of the mounting cavity, the built-in oil cylinder is provided in the mounting cavity, one end of the built-in oil cylinder is rotatably connected with the base arm, the other end of the built-in oil cylinder is rotatably connected with the inner arm, and the built-in oil cylinder can stretch and retract to realize relative movement of the inner arm and the base arm.

In some embodiments, the support assembly includes a plurality of adjusting shims, the adjusting shims are disposed in the mounting cavity of the base arm and are sequentially arranged along the circumferential direction of the mounting cavity, and at least one of the adjusting shims is adjustable in position in the radial direction of the base arm so as to push the inner arm and correct the position of the inner arm in the mounting cavity.

In some embodiments, the mounting cavity has a square cross-section, the plurality of shims includes a first shim, a second shim, a third shim, and a fourth shim, the mounting cavity has a first inner wall, a second inner wall, a third inner wall and a fourth inner wall, the first inner wall and the third inner wall are opposite, the second inner wall is opposite to the fourth inner wall, the first gasket is arranged on the first inner wall, the second gasket is arranged on the second inner wall, the third gasket is arranged on the third inner wall, the fourth gasket is arranged on the fourth inner wall, the inner arm is clamped between the first gasket and the third gasket and between the second gasket and the fourth gasket, at least one of the first shim and the third shim is adjustable in radial position along the base arm and at least one of the second shim and the fourth shim is adjustable in radial position along the base arm to correct the position of the inner arm.

In some embodiments, the base arm is provided with a guide member and a pushing member, the first inner wall and the second inner wall are provided with guide holes, the guide holes extend along the radial direction of the base arm, each guide hole is provided with a guide member in a guiding fit, the first gasket is connected with the guide member on the first inner wall, the second gasket is connected with the guide member on the second inner wall, at least part of the pushing member is fitted in the guide hole and is movable along the extending direction of the guide hole, and the pushing member is suitable for pushing the guide member to realize the adjustment of the positions of the first gasket and the second gasket.

In some embodiments, a first outer plate and a second outer plate are arranged on the outer periphery of the base arm, threaded holes are formed in the first outer plate and the second outer plate, the first outer plate is opposite to the first gasket, the threaded hole of the first outer plate is opposite to the guide hole in the first inner wall, the pushing piece on the first inner wall is in threaded fit in the threaded hole of the first outer plate, the second outer plate is opposite to the second gasket, the threaded hole of the second outer plate is opposite to the guide hole in the second inner wall, and the pushing piece on the second inner wall is in threaded fit in the threaded hole of the second outer plate.

In some embodiments, the ejector is a bolt, the bolt is provided with a first nut and a second nut on the outer peripheral side, the first nut and the second nut are arranged between the bolt head of the bolt and the outer peripheral surface of the base arm, and the first nut and the second nut are suitable for being in fit contact with the outer peripheral surface of the base arm to fasten the bolt.

In some embodiments, the guide hole is a stepped hole including a large hole section and a small hole section, the large hole section being located inside the small hole section, and the guide has a large diameter section and a small diameter section, the large diameter section being fitted in the large hole section, and the small diameter section being fitted in the small hole section.

In some embodiments, the chain drive assembly includes a direction-changing wheel provided at a front end of the rail and a speed reducer provided at a rear end of the rail, and the chain is fitted in the speed reducer and bypasses the direction-changing wheel.

In some embodiments, the track comprises a plurality of track sections, the track sections are sequentially connected in the front-back direction, and two adjacent track sections are connected through a connecting plate and a fastener, the track comprises a first guide rail and a second guide rail, tapered portions are arranged at the tops of the first guide rail and the second guide rail, rollers are arranged on two sides of the transport vehicle, each roller is provided with an annular groove, the cross section of each annular groove is V-shaped, each tapered portion is matched in the annular groove, each tapered portion is provided with a first inclined surface and a second inclined surface, and the included angle between each first inclined surface and the horizontal plane and the included angle between each second inclined surface and the horizontal plane are 30 degrees; the front end and the rear end of the track are both provided with limiting structures, and the limiting structures are suitable for being blocked with a setting part to limit the movement amount of the track in the front-back direction.

Drawings

Fig. 1 is a right side view of a heading machine of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the support assembly of fig. 1.

Fig. 3 is a schematic cross-sectional view at a-a in fig. 2.

Fig. 4 is a schematic view of the structure of the rail of fig. 1.

Fig. 5 is a schematic cross-sectional view at B-B in fig. 4.

Fig. 6 is a top view of the truck of fig. 1.

Figure 7 is a front view of the truck of figure 1.

Figure 8 is a right side view of the truck of figure 1.

Reference numerals:

a support assembly 1; a base arm 11; an inner arm 12; an adjustment shim 13; a first spacer 131; a second gasket 132; a third gasket 133; a fourth shim 134; a guide member 14; a pusher 15; a first nut 151; a second nut 152; a first outer plate 161; a second outer plate 162;

a track 2; a driver 21; a limiting structure 22; a first track segment 201; a second track segment 202; a connecting plate 203; a first guide rail 204; a second guide rail 205; a first bevel 206; a second slope 207;

a carrier 3; a platform 31; a clamp block 32; a roller 33;

a chain drive assembly 4; a chain 41; a direction-changing wheel 42; and a speed reducer 43.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1, a heading machine according to an embodiment of the present invention includes a frame, a plurality of support assemblies 1, a rail 2, a drive 21, a carrier 3, and a chain drive assembly 4.

A plurality of supporting components 1 are arranged along the fore-and-aft direction interval of frame, and supporting component 1 establishes in the frame, and supporting component 1 is scalable along upper and lower direction.

Specifically, the support assemblies 1 comprise a plurality of rows of support assemblies 1 arranged in parallel at intervals in the left-right direction, a plurality of support assemblies 1 are arranged in each row of support assemblies 1, and the support assemblies 1 in each row of support assemblies 1 are arranged in parallel at intervals in the front-back direction. The lower end of the supporting component 1 is fixedly connected with the rack, the upper end of the supporting component 1 can move along the vertical up-down direction, and the upper end of the supporting component is connected with the track 2.

It should be noted that the lifting operation of the upper ends of all the support units 1 is performed synchronously, that is, all the support units 1 are extended and retracted synchronously in the vertical direction. Therefore, on one hand, the multiple rows of support assemblies 1 can provide stable support for the guide rail, and on the other hand, all the support assemblies 1 can extend and retract along the vertical direction to lift the track 2. In addition, the telescopic action of all the supporting assemblies 1 is synchronously performed, so that the posture of the rail 2 relative to the frame is kept unchanged when the rail 2 is lifted.

A rail 2 is provided on top of the plurality of support members 1, and the rail 2 is movable in the front-rear direction of the frame. The driver 21 is connected between the track 2 and the frame, the length of the driver 21 is adjustable to drive the track 2 to move back and forth, one end of the driver 21 is rotatably connected with the track 2, and the other end of the driver 21 is rotatably connected with the frame to make the driver 21 capable of swinging and stretching when the track 2 moves up and down.

Specifically, the lower end of the rail 2 is connected with the upper end of the support assembly 1, the rail 2 extends along the front-back direction, the rail 2 can move back and forth relative to the upper end of the support assembly 1, and the upper end of the support assembly 1 can only move up and down and is fixed relative to the frame in the front-back direction, so that the rail 2 can move back and forth relative to the frame. The lower extreme of track 2 still is provided with driver 21, and one end of driver 21 is articulated with track 2, and the other end of driver 21 is articulated with the frame, and driver 21 can stretch out and draw back along the direction that its length place.

Therefore, on one hand, the driver 21 is hinged with the frame and the track 2, so that the driver 21 can be kept connected with the track 2 and the frame in the process of lifting the track 2; on the other hand, the actuator 21 displaces the rail 2 in the front-rear direction by changing the distance between the point of connection of the actuator 21 to the rail 2 and the point of connection of the actuator 21 to the frame during expansion and contraction, thereby moving the rail 2 in the front-rear direction of the frame.

The carrier 3 is arranged on the track 2, the carrier 3 can move along the extending direction of the track 2, the carrier 3 is provided with a platform 31, the platform 31 can be lifted and rotated, a clamping block 32 is arranged on the platform 31, and the clamping block 32 is suitable for clamping and fixing a non-repeated support.

Specifically, as shown in fig. 6 to 8, the transportation vehicle 3 is connected to the rail 2, the transportation vehicle 3 can move in a front-rear direction, a platform 31 is disposed at an upper end of the transportation vehicle 3, a hydraulic lifting assembly is disposed at a lower side of the platform 31, a lower end of the hydraulic lifting assembly is fixedly connected to the transportation vehicle 3, a rotating assembly is disposed between the platform 31 and the hydraulic lifting assembly, an upper end of the rotating assembly is connected to a lower end of the platform 31, and a lower end of the rotating assembly is fixedly connected to the hydraulic lifting assembly. The upper end of platform 31 is provided with two sets of clamp splice 32 of fore-and-aft symmetric arrangement, forms logical groove between two sets of clamp splice 32, and a set of clamp splice 32 is close to the front end of platform 31, and another set of clamp splice 32 is close to the rear end of platform 31, and wherein every set of clamp splice 32 includes two clamp splice 32 of bilateral symmetric arrangement. Therefore, on one hand, the platform 31 can be lifted, and in the lifting process of the platform 31, the upper end surface of the platform 31 can be connected with the unrepeated bracket; on the other hand, the platform 31 can rotate, when the upper end face of the platform 31 is connected with the non-repeated support, the non-repeated support falls into the through groove by rotating the platform 31 through the rotating assembly, and therefore the non-repeated support can be clamped and fixed by the clamping block 32.

The chain driving assembly 4 comprises a chain 41, the truck 3 is connected with the chain 41, and the truck 3 moves back and forth through the rotation of the chain 41.

Specifically, the chain 41 extends in the front-rear direction, the chain 41 is connected end to end in a ring shape in a vertical plane, the chain 41 can rotate in the vertical plane, the chain 41 penetrates through the guide rail from the inside of the guide rail, the carrier 3 is arranged in the middle section of the chain 41, the chain 41 is hinged to the front end of the carrier 3, and the chain 41 is hinged to the rear end of the carrier 3. It is understood that the truck 3 can be regarded as a segment of the chain 41, so that the truck 3 can move along with the rotation of the chain 41, and because the truck 3 is disposed in the upper link of the chain 41, the truck 3 can move back and forth along with the rotation of the chain 41. Therefore, the chain driving component 4 drives the carrying vehicle 3 to move back and forth through chain transmission, on one hand, the chain driving component 4 can work under the conditions of low speed, heavy load and high temperature and in the environment of dust flying in a roadway; on the other hand, the chain transmission does not have elastic sliding and slipping, and the chain driving component 4 still has higher positioning precision compared with other driving forms after long-time work.

In some embodiments, the support assembly 1 includes a base arm 11, an inner arm, and a built-in oil cylinder, the base arm 11 is fixed on the frame, a mounting cavity is provided in the base arm 11, an opening is provided at the top of the mounting cavity, the inner arm is guided and fitted in the mounting cavity, and the inner arm can extend out from the opening at the top of the mounting cavity, the built-in oil cylinder is provided in the mounting cavity, one end of the built-in oil cylinder is rotatably connected with the base arm 11, the other end of the built-in oil cylinder is rotatably connected with the inner arm, and the built-in oil cylinder can stretch and retract to realize relative movement of the inner arm and the base arm 11.

Specifically, as shown in fig. 2 and 3, the base arm 11 is a hollow tubular structure, the base arm 11 extends in the vertical up-down direction, and the lower end of the base arm 11 is detachably connected to the frame by a screw. The inside hollow structure of base arm 11 is the installation cavity promptly, and the bottom of installation cavity is sealed, and the opening cooperation that the inner arm runs through the installation cavity top is in the installation cavity, and the upper end of inner arm is higher than the opening at installation cavity top, and the lower extreme of inner arm is less than the opening at installation cavity top, and the lower extreme of inner arm is provided with built-in hydro-cylinder, and built-in hydro-cylinder also is located the installation cavity, and the upper end and the inner wall 12 of built-in hydro-cylinder are articulated, and built-in hydro-cylinder's lower extreme is articulated with base arm 11. Therefore, the built-in oil cylinder can stretch out and draw back under the condition of external hydraulic oil, the distance between the lower end of the inner arm and the lower end of the base arm 11 is changed, on one hand, relative motion is generated between the inner arm and the base arm 11, and therefore the upper end of the supporting component 1 can be lifted; on the other hand, the built-in oil cylinder is telescopic in a hydraulic driving mode and can work under the conditions of low speed, heavy load and high temperature and in the environment that the dust in the roadway flies upward.

In some embodiments, the support assembly 1 includes a plurality of adjusting shims 13, the adjusting shims 13 are disposed in the mounting cavity of the base arm 11 and are sequentially arranged along the circumferential direction of the mounting cavity, and at least one of the adjusting shims 13 is adjustable in position in the radial direction of the base arm 11 for pushing the inner arm and correcting the position of the inner arm in the mounting cavity.

Specifically, as shown in fig. 3, the base arm 11 is a square pipe, and the mounting cavity has four inner walls 12, and one spacer 13 is provided on the inner side of each inner wall 12. The adjusting gaskets 13 corresponding to two adjacent inner walls 12 in the inner walls 12 of the mounting cavity are adjustable in position, the other two gaskets are fixedly mounted on the inner sides of the corresponding inner walls 12 of the mounting cavity through screws, and the two adjusting gaskets 13 with adjustable positions can move along the radial direction of the base arm 11.

It will be appreciated that there is a gap between the inner arm and the inner wall 12 of the mounting cavity so that the inner arm is movable radially of the base arm 11 within the mounting cavity. The position of the inner arm in the mounting cavity is corrected by adjusting the distance between the two position-adjustable adjusting shims 13 and the outer surface of the inner arm, thereby limiting the range of radial movement of the inner arm in the mounting cavity along the base arm 11. Therefore, the position of the inner arm in the installation cavity is corrected, so that on one hand, the accuracy of up-and-down movement of the inner arm in the base arm 11 is improved, and on the other hand, the uniformity of the upper end movement of the plurality of support assemblies 1 when the upper ends of the support assemblies 1 are lifted synchronously is improved.

In some embodiments, the cross-section of the mounting cavity is square, the plurality of shims 13 includes a first shim 131, a second shim 132, a third shim 133, and a fourth shim 134, the mounting cavity has a first inner wall 12, a second inner wall 12, a third inner wall 12, and a fourth inner wall 12, the first inner wall 12 is opposite the third inner wall 12, the second inner wall 12 is opposite the fourth inner wall 12, the first shim 131 is disposed on the first inner wall 12, the second shim 132 is disposed on the second inner wall 12, the third shim 133 is disposed on the third inner wall 12, the fourth shim 134 is disposed on the fourth inner wall 12, the inner arms clamp between the first shim 131 and the third shim 133, and between the second shim 132 and the fourth shim 134, at least one of the first shim 131 and the third shim 133 is adjustable in radial position along the base arm 11, and at least one of the second shim 132 and the fourth shim 134 is adjustable in radial position along the base arm 11 to correct the position of the inner arm.

Specifically, as shown in fig. 3, the base arm 11 is a square tube with uniform thickness, the installation cavity is a hollow structure inside the base arm 11, so the cross section of the installation cavity is the section of the inner wall 12 of the base arm 11, the installation cavity has four inner walls 12, the first inner wall 12, the second inner wall 12, the third inner wall 12 and the fourth inner wall 12 are sequentially arranged along the circumferential direction of the installation cavity, the adjusting shims 13 are in one-to-one correspondence with the inner walls 12 of the installation cavity, the first shims 131 are arranged inside the first inner wall 12, the second shims 132 are arranged inside the second inner wall 12, the third shims 133 are arranged inside the third inner wall 12, and the fourth shims 134 are arranged inside the fourth inner wall 12. The first pad 131 is movably connected to the first inner wall 12, the second pad 132 is movably connected to the second inner wall 12, the third pad 133 is fixedly connected to the third inner wall 12, the fourth pad 134 is fixedly connected to the fourth inner wall 12, and the first pad 131 and the second pad 132 can move a distance along the radial direction of the base arm 11. Therefore, the position of the inner arm in the front-back direction of the installation cavity can be adjusted by adjusting the distance between the first gasket 131 and the second inner wall 12, and the position of the inner arm in the left-right direction of the installation cavity can be adjusted by adjusting the distance between the second gasket 132 and the second inner wall 12, so that the position of the inner arm in the installation cavity is corrected, and the precision of the inner arm in the vertical movement along the base arm 11 is improved.

In some embodiments, the base arm 11 is provided with a guide member 14 and a pushing member 15, the first inner wall 12 and the second inner wall 12 are provided with guide holes, the guide holes extend along a radial direction of the base arm 11, each guide hole is provided with the guide member 14 in a guiding fit, the first gasket 131 is connected with the guide member 14 on the first inner wall 12, the second gasket 132 is connected with the guide member 14 on the second inner wall 12, at least a part of the pushing member 15 is fitted in the guide hole and is movable along an extending direction of the guide hole, and the pushing member 15 is adapted to push the guide member 14 to realize the position adjustment of the first gasket 131 and the second gasket 132.

Specifically, as shown in fig. 3, two guide holes are respectively disposed on the first inner arm and the second inner wall 12, the two guide holes on the first inner wall 12 extend in the front-back direction and are arranged in parallel at intervals in the left-right direction, and the distance from the guide hole on the left side of the first inner wall 12 to the left end of the first inner wall 12 is the same as the distance from the guide hole on the right side of the first inner wall 12 to the right end of the first inner wall 12; the two guide holes on the second inner wall 12 extend along the left-right direction and are arranged in parallel at intervals along the front-rear direction, and the distance from the guide hole close to the front side on the second inner wall 12 to the front end of the second inner wall 12 is the same as the distance from the guide hole close to the rear side on the second inner wall 12 to the rear end of the second inner wall 12. Thus, the two guide holes of the first inner wall 12 are symmetrically arranged in the left-right direction on the first inner wall 12, and the two guide holes of the second inner wall 12 are symmetrically arranged in the front-rear direction on the second inner wall 12. The first gasket 131 is provided with two through holes, and the distance between the two through holes on the first gasket 131 is the same as the distance between the two guide holes on the first inner wall 12; the second gasket 132 is provided with two through holes, and the distance between the two through holes on the second gasket 132 is the same as the distance between the two guide holes on the second inner wall 12.

It should be noted that the guide 14 on the first inner wall 12 penetrates through the guide hole on the first inner wall 12, the rear end of the guide 14 on the first inner wall 12 penetrates through the through hole on the first gasket 131, the guide 14 on the second inner wall 12 penetrates through the guide hole on the second inner wall 12, and the right end of the guide 14 on the second inner wall 12 penetrates through the through hole on the second gasket 132. The pushing pieces 15 correspond to the guiding pieces 14 one by one, the front end of each guiding piece 14 on the first inner wall 12 is connected with the rear end of the corresponding pushing piece 15, and the left end of each guiding piece 14 on the second inner wall 12 is connected with the right end of the corresponding pushing piece 15.

Therefore, when the pushing piece 15 moves along the extending direction of the guide hole, the guide piece 14 connected with the pushing piece 15 also moves along with the pushing piece 15, and the adjusting gasket 13 connected with the guide piece 14 also moves along with the guide piece 14, so that the position of the adjusting gasket 13 in the base arm 11 can be adjusted by adjusting the position of the pushing piece 15 positioned outside the base arm 11, and the position of the inner arm in the mounting cavity can be corrected by external operation of the support assembly 1.

In some embodiments, the outer periphery of the base arm 11 is provided with a first outer plate 161 and a second outer plate 162, the first outer plate 161 and the second outer plate 162 are both provided with threaded holes, the first outer plate 161 is opposite to the first gasket 131, the threaded hole of the first outer plate 161 is opposite to the guide hole on the first inner wall 12, the pushing member 15 on the first inner wall 12 is in threaded fit in the threaded hole of the first outer plate 161, the second outer plate 162 is opposite to the second gasket 132, the threaded hole of the second outer plate 162 is opposite to the guide hole on the second inner wall 12, and the pushing member 15 on the second inner wall 12 is in threaded fit in the threaded hole of the second outer plate 162.

Specifically, as shown in fig. 3, a first outer plate 161 is disposed on the front side of the base arm 11, a second outer plate 162 is disposed on the left side of the base arm 11, two threaded holes are disposed on the first outer plate 161, the distance between the two threaded holes on the first outer plate 161 is the same as the distance between the two guide holes on the first inner wall 12, two threaded holes are disposed on the second outer plate 162, and the distance between the two threaded holes on the second outer plate 162 is the same as the distance between the two guide holes on the second inner wall 12. Thus, the geometric centers of the two threaded holes of the first outer plate 161 coincide with the geometric centers of the two guide holes of the first inner wall 12, and the geometric centers of the two threaded holes of the second outer plate 162 coincide with the geometric centers of the two guide holes of the second inner wall 12.

It should be noted that the threaded hole on the first outer plate 161, the guide hole on the first inner wall 12, the through hole on the first gasket 131, the guide member 14 in the first guide hole and the pushing member 15 on the first inner wall 12 correspond to each other one by one, the threaded hole on the second outer plate 162, the guide hole on the second inner wall 12, the through hole on the second gasket 132, the guide member 14 in the second guide hole and the pushing member 15 on the second inner wall 12 correspond to each other one by one, each set of the corresponding axial centers of the threaded hole on the first outer plate 161, the guide hole on the first inner wall 12, the through hole on the first gasket 131, the guide member 14 in the first guide hole and the pushing member 15 on the first inner wall 12 coincide, the axis of the threaded hole on the second outer plate 162, the guide hole on the second inner wall 12, the through hole on the second gasket 132, the guide member 14 in the second guide hole, and the pushing member 15 on the second inner wall 12, which correspond to each other, coincide.

It can be understood that, when the pushing member 15 is rotated to move the pushing member 15 along the extending direction of the threaded hole engaged with the pushing member 15, the guide member 14 corresponding to the pushing member 15 is moved along the extending direction of the guide member 14 by the pushing of the pushing member 15, so that the adjusting shim 13 engaged with the guide member 14 is pushed to move along the extending direction of the guide member 14. Therefore, the ejector 15 is rotated to enable the corresponding adjusting gasket 13 to move along the extending direction of the ejector 15, on one hand, the position of the adjusting gasket 13 is adjusted in a mode similar to a screw nut, the movement speed ratio is large, the adjusting precision is high, and the ejector 15 can be self-locked in a threaded hole; on the other hand, a part of the pushing piece 15 is positioned at the outer side of the base arm 11, and the position of the adjusting gasket 13 can be adjusted by rotating the pushing piece 15 at the outer side part of the base arm 11, so that the operation of an operator is facilitated.

In some embodiments, the first and second outer plates 161 and 162 are welded to the outer circumferential side of the base arm 11, and in other embodiments, the first and second outer plates 161 and 162 are fixedly attached to the outer circumferential side of the base arm 11 by screws or rivets.

In some embodiments, the ejector 15 is a bolt, the outer circumferential side of the bolt is provided with a first nut 151 and a second nut 152, the first nut 151 and the second nut 152 are provided between the bolt head of the bolt and the outer circumferential surface of the base arm 11, and the first nut 151 and the second nut 152 are adapted to be in close contact with the outer circumferential surface of the base arm 11 to fasten the bolt.

Specifically, the outer periphery of the pushing member 15 is provided with an external thread, the first nut 151 and the second nut 152 are both provided between the second nut 152 and the outer peripheral surface of the base arm 11 together with the bolt first nut 151, one end of the first nut 151 is connected to the outer peripheral surface of the base arm 11, the other end of the first nut 151 is connected to the second nut 152, and the bolt is respectively screwed with the first nut 151 and the second nut 152 to form a screw pair. Therefore, when the first nut 151 and the second nut 152 are tightened, an axial force is generated between the first nut 151 and the second nut 152, so that the friction force between the nut teeth of the first nut 151 and the second nut 152 and the bolt teeth of the bolt is increased, the first nut 151 or the second nut 152 is placed and falls off, and the pushing member 15 is effectively prevented from loosening under the vibration condition.

In some embodiments, the pilot hole is a stepped hole including a large hole section and a small hole section, the large hole section being located inside the small hole section, and the guide 14 has a large diameter section and a small diameter section, the large diameter section fitting inside the large hole section, and the small diameter section fitting inside the small hole section.

Specifically, as shown in fig. 3, the guide hole is a stepped circular hole, the guide hole includes a large hole section and a small hole section with different diameters, the axis of the large hole section coincides with the axis of the small hole section, the diameter of the large hole section is larger than that of the small hole section, the inner end of the large hole section is located on the inner wall 12 of the mounting cavity, the outer end of the large hole section is connected with the inner end of the small hole section, and the outer end of the small hole section is located on the outer surface of the base arm 11. The guide 14 is a stepped cylinder, the guide 14 includes a large diameter section and a small diameter section with different diameters, the axis of the large diameter section coincides with the axis of the small diameter section, the diameter of the large diameter section is larger than that of the small diameter section, and the inner side and the outer side of the large diameter section are both provided with the small diameter section.

It should be noted that the nominal size of the diameter of the large diameter section is the same as the nominal size of the diameter of the large hole section, the large diameter section is in clearance fit with the large hole section, the nominal size of the diameter of the small diameter section is the same as the nominal size of the diameter of the small hole section, and the small diameter section outside the large diameter section is in clearance fit with the small hole section. Therefore, a shaft shoulder is formed between the large hole section and the small hole section, and when the outer end of the large diameter section is contacted with the inner end of the small hole section, the position of the guide 14 is positioned at the outermost end of the movable range of the guide 14 in the guide hole, so that the sliding range of the guide 14 in the guide hole is limited, and the guide 14 is prevented from falling off from the outermost side of the guide hole.

In some embodiments, the chain drive assembly 4 includes a direction-changing wheel 42 and a speed reducer 43, the direction-changing wheel 42 is provided at the front end of the rail 2, the speed reducer 43 is provided at the rear end of the rail 2, and the chain 41 is fitted in the speed reducer 43 and bypasses the direction-changing wheel 42.

Specifically, as shown in fig. 4, the chain 41 is a chain ring extending in the front-rear direction, and the front end of the chain ring is provided with a direction-changing wheel 42 and the rear end of the chain ring is provided with a speed reducer 43. The direction-changing wheel 42 is pivotally connected with the front end of the guide rail, the direction-changing wheel 42 is a chain wheel, and the chain 41 is arranged on the outer periphery side of the direction-changing wheel 42 and meshed with the direction-changing wheel 42; the decelerator 43 is fixedly connected to the rear end of the guide rail, and the rear end of the chain ring passes through the decelerator 43 and engages with the decelerator 43.

It should be noted that the speed reducer 43 is provided with a power output end, the power output end is a sprocket, and the chain 41 is arranged on the outer periphery of the power output end and meshed with the power output end; the reducer 43 is also provided with a power input connected to a hydraulic motor. Thus, on the one hand, the bend wheels 42 support the front end of the chain loop and the power take-off supports the rear end of the chain loop; on the other hand, the speed reducer 43 transmits power generated by the hydraulic motor to the chain 41 through the power output end, thereby driving the chain 41 to rotate.

In some embodiments, the track 2 includes a plurality of track segments, the plurality of track segments are sequentially connected in a front-back direction, and two adjacent track segments are connected with each other through a connecting plate 203 and a fastener, the track 2 includes a first guide rail 204 and a second guide rail 205, tapered portions are disposed on tops of the first guide rail 204 and the second guide rail 205, rollers 33 are disposed on two sides of the transport vehicle 3, each roller 33 is provided with an annular groove, a cross section of each annular groove is V-shaped, the tapered portions are fitted in the annular grooves, each tapered portion has a first inclined surface 206 and a second inclined surface 207, and an included angle between each first inclined surface 206 and each second inclined surface 207 and a horizontal plane is 30 degrees; the front end and the rear end of the track 2 are provided with limit structures 22, and the limit structures 22 are suitable for being blocked with a setting part to limit the movement amount of the track 2 in the front and rear directions.

Specifically, as shown in fig. 4 to 6, the rail 2 includes a first rail section 201 and a second rail section 202, the first rail section 201 and the second rail section 202 have the same cross-sectional shape, the rear end of the first rail section 201 is connected to the front end of the second rail section 202, connection plates 203 are disposed on the front and rear sides of the rail 2, the front half of each connection plate 203 is connected to the first rail section 201 by bolts, and the rear half of each connection plate 203 is connected to the second rail section 202 by bolts. The first guide rail 204 and the second guide rail 205 are arranged in parallel at intervals in the left-right direction, the first guide rail 204 and the second guide rail 205 both extend in the front-rear direction, tapered portions are provided at the upper ends of the first guide rail 204 and the second guide rail 205, a first inclined surface 206 and a second inclined surface 207 are provided at the upper ends of the tapered portions, and the upper end of the first inclined surface 206 is connected with the upper end of the second inclined surface 207.

It will be appreciated that the first and second inclined surfaces 206, 207 are angled at 120. The roller 33 is a V-shaped roller, an annular groove is provided on the outer peripheral side of the roller 33, the annular groove is a V-shaped groove, and the opening angle of the annular groove is 120 °. Thus, the opening angle of the annular groove and the angle of the tip of the tapered portion are the same, so that the tapered portion fits in the annular groove, and the roller 33 can roll in the extending direction of the tapered portion, that is, the roller 33 can roll along the first guide rail 204 and the second guide rail 205.

In addition, the front side and the rear side of the lower end surface of the track 2 are both provided with a limiting structure 22, the limiting structure 22 extends along the width direction of the guide rail, the limiting structure 22 is detachably connected with the guide rail through a screw, and the front end of the limiting structure 22 close to the front side and the rear end of the limiting structure 22 close to the rear side are both provided with collision surfaces. Therefore, when the rail 2 moves in the front-rear direction, the stopper structure 22 also moves forward and backward along with the rail 2, and when the collision surface contacts the setting member, the rail 2 cannot move any further, thereby limiting the stroke of the rail 2 moving in the front-rear direction. Therefore, the limit structure 22 limits the travel of the track 2 moving along the front-back direction of the rack, so that most of the track 2 is located on the upper side of the rack when moving, the gravity center deviation of the track 2 caused by too much suspension of the track 2 is avoided, and safety accidents such as rotation and falling off of the track 2 are avoided.

In some embodiments, a drag chain is connected to the carrier 3, one end of the drag chain is connected to the carrier, the other end of the drag chain is connected to the rack, a cable and a rubber tube are arranged in the drag chain in a penetrating mode, the drag chain is arranged to protect the cable and the rubber tube, and the situation that the cable and the rubber tube are easily abraded in the moving process of the carrier 3 is avoided.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A heading machine, comprising:

a machine frame, a plurality of guide rails and a plurality of guide rails,

the supporting components are arranged at intervals along the front-back direction of the rack, are arranged on the rack and are telescopic along the up-down direction;

the track is arranged on the tops of the support assemblies and can move along the front-back direction of the rack;

the driver is connected between the track and the rack, the length of the driver is adjustable to drive the track to move back and forth, one end of the driver is rotatably connected with the track, and the other end of the driver is rotatably connected with the rack to enable the driver to be capable of swinging and stretching when the track moves up and down;

the carrying vehicle is arranged on the track and can move along the extending direction of the track, the carrying vehicle is provided with a platform, the platform can be lifted and rotated, a clamping block is arranged on the platform, and the clamping block is suitable for clamping and fixing a non-repeated support;

the chain drive assembly comprises a chain, the carrier is connected with the chain, and the carrier moves back and forth through rotation of the chain.

2. The heading machine of claim 1, wherein the support assembly includes a base arm, an inner arm, and an inner cylinder, the base arm is fixed to the frame, a mounting cavity is provided in the base arm, an opening is provided at a top of the mounting cavity, the inner arm is guided and fitted in the mounting cavity, the inner arm is extendable from the opening at the top of the mounting cavity, the inner cylinder is provided in the mounting cavity, one end of the inner cylinder is rotatably connected to the base arm, the other end of the inner cylinder is rotatably connected to the inner arm, and the inner cylinder is retractable to allow relative movement between the inner arm and the base arm.

3. The heading machine of claim 2, wherein the support assembly includes a plurality of spacer shims, the spacer shims are disposed in the mounting cavity of the base arm and are sequentially arranged along a circumferential direction of the mounting cavity, and at least one of the spacer shims is adjustable in position in a radial direction of the base arm for urging the inner arm and correcting a position of the inner arm in the mounting cavity.

4. The heading machine of claim 3, wherein the mounting cavity has a square cross-section and the plurality of shims includes a first shim, a second shim, a third shim, and a fourth shim, the mounting cavity having a first inner wall, a second inner wall, a third inner wall, and a fourth inner wall, the first inner wall opposing the third inner wall, the second inner wall opposing the fourth inner wall, the first shim disposed on the first inner wall, the second shim disposed on the second inner wall, the third shim disposed on the third inner wall, the fourth shim disposed on the fourth inner wall, the inner arm clamping between the first shim and the third shim, between the second shim and the fourth shim, at least one of the first shim and the third shim adjustable along a radial position of the base arm, At least one of the second shim and the fourth shim is adjustable in radial position along the base arm to correct the position of the inner arm.

5. The heading machine according to claim 4, wherein the base arm is provided with a guide member and a pushing member, the first inner wall and the second inner wall are provided with guide holes extending in a radial direction of the base arm, each of the guide holes is provided with a guide member in a guide fit, the first spacer is connected to the guide member on the first inner wall, the second spacer is connected to the guide member on the second inner wall, at least a part of the pushing member is fitted in the guide hole and movable in an extending direction of the guide hole, and the pushing member is adapted to push the guide members to adjust positions of the first spacer and the second spacer.

6. The heading machine according to claim 5, wherein a first outer plate and a second outer plate are provided on an outer peripheral side of the base arm, both the first outer plate and the second outer plate are provided with threaded holes, the first outer plate is opposite to the first spacer, the threaded hole of the first outer plate is opposite to the guide hole on the first inner wall, the pushing member on the first inner wall is in threaded fit in the threaded hole of the first outer plate, the second outer plate is opposite to the second spacer, the threaded hole of the second outer plate is opposite to the guide hole on the second inner wall, and the pushing member on the second inner wall is in threaded fit in the threaded hole of the second outer plate.

7. The heading machine of claim 6, wherein the ejector is a bolt, and the bolt is provided on an outer peripheral side thereof with a first nut and a second nut provided between a head of the bolt and an outer peripheral surface of the base arm, the first nut and the second nut being adapted to come into abutting contact with the outer peripheral surface of the base arm to tighten the bolt.

8. The heading machine according to claim 5, wherein the pilot hole is a stepped hole including a large hole section and a small hole section, the large hole section being located inside the small hole section, the guide having a large diameter section and a small diameter section, the large diameter section being fitted in the large hole section, and the small diameter section being fitted in the small hole section.

9. The heading machine of claim 1, wherein the chain drive assembly includes a bend wheel disposed at a front end of the track and a speed reducer disposed at a rear end of the track, the chain engaging within the speed reducer and bypassing the bend wheel.

10. The heading machine according to any one of claims 1 to 9, wherein the rail includes a plurality of rail segments, the plurality of rail segments are sequentially connected in a front-rear direction, and adjacent two rail segments are connected to each other by a connecting plate and a fastener, the rail includes a first rail and a second rail, each of the first rail and the second rail has a tapered portion at a top thereof, the vehicle has rollers at both sides thereof, the rollers are provided with annular grooves, the annular grooves have a V-shaped cross section, the tapered portions are fitted in the annular grooves, the tapered portions have a first inclined surface and a second inclined surface, and the first inclined surface and the second inclined surface are at an angle of 30 degrees with respect to a horizontal plane; the front end and the rear end of the track are both provided with limiting structures, and the limiting structures are suitable for being blocked with a setting part to limit the movement amount of the track in the front-back direction.

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