CN212359743U

CN212359743U - Cutting drum mechanism for tunneling and anchoring machine

Info

Publication number: CN212359743U
Application number: CN202021965983.XU
Authority: CN
Inventors: 祁世栋; 刘志明; 卢涛; 李明宇
Original assignee: Sany Heavy Equipment Co Ltd
Current assignee: Sany Heavy Equipment Co Ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-01-15
Anticipated expiration: 2030-09-09

Abstract

The utility model provides a cutting drum mechanism for a tunneling and anchoring machine, which comprises a left middle drum, a right middle drum, a left side drum and a right side drum which are fixedly arranged on a speed reducer bracket; the left roller and the right roller respectively comprise an outer side roller and an inner side roller which can axially slide in the outer side roller; the edge outer roller and the edge inner roller are provided with pin shafts for limiting the edge inner roller after the edge inner roller extends to the working size in the edge outer roller; the drum surfaces of the left middle drum, the right middle drum, the left drum and the right drum are provided with drum cutting teeth in a multi-helix symmetrical mode, and the end parts of the left drum and the right drum are respectively provided with side end cover cutting teeth and end disc cutting teeth in a multi-helix symmetrical mode. The utility model provides a dig anchor machine cutting drum mechanism can solve the potential safety hazard that the coal wall drops easily and produces when current dig anchor machine cutting drum cuts, and flexible hydro-cylinder receives the vibration easily and damages the scheduling problem.

Description

Cutting drum mechanism for tunneling and anchoring machine

Technical Field

The utility model relates to an excavating machinery technical field, in particular to cutting drum mechanism for anchor driving machine.

Background

Current driving and bolting machine cutting drum comprises interior cutting drum, the outer cutting drum of cutting drum both sides including setting, and set up in the storage tank of outer cutting drum both sides and with outer cutting drum sliding connection's flexible cutting drum, the outside of interior cutting drum, outer cutting drum and flexible cutting drum all is equipped with the broken rock tooth of multiunit, and the tooth point orientation that broken rock tooth is spiral distribution and broken rock tooth is the same with the direction of rotation of interior cutting drum. When the tunneling and anchoring machine works, the cutting drum cuts the roadway, the section of the roadway is rectangular, the corners of the section are right-angled, stress concentration is caused, the coal wall is easy to fall off, and potential safety hazards exist. Moreover, when the telescopic cutting drums on the two sides of the outer cutting drum are used for cutting, the stress is large, the vibration is severe, and the telescopic oil cylinders connected between the outer cutting drum and the telescopic cutting drums are easily damaged due to the vibration. Moreover, the telescopic oil cylinder and the mounting seat mounted on the outer cutting drum accommodating groove are of an integrated structure, so that when the easily damaged telescopic oil cylinder is frequently replaced, the telescopic oil cylinder and the mounting seat are required to be integrally disassembled and replaced, time and labor are wasted, and resources are wasted. Simultaneously, the fitting surface between the flexible cutting drum with outer cutting drum sliding connection is no lubricating structure, and frictional force is great between outer cutting drum and the flexible cutting drum, and the slip stroke of flexible cutting drum in outer cutting drum is longer more receives frictional resistance bigger, consequently, after tunneling and bolting machine cutting drum work for a certain time, wearing and tearing are serious between outer cutting drum and the flexible cutting drum, and after the fit clearance between the two increases, the vibration increase produces the destruction to the drum.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a provide a cutting drum mechanism for anchor driving machine to solve the tunnel section shape of current anchor driving machine cutting drum cutting and be the rectangle, cause stress concentration, the coal wall drops easily and the potential safety hazard that exists, and the cylinder is great at the cutting during operation atress, and the vibration is great, makes flexible hydro-cylinder receive the vibration easily and damages the scheduling problem.

In order to solve the technical problem, the utility model provides a cutting drum mechanism for anchor driving machine, include

The left middle roller and the right middle roller are fixedly arranged on the inner side of the speed reducer support, and the left roller and the right roller are symmetrically arranged on two sides of the speed reducer support;

the left roller and the right roller respectively comprise an outer side roller and an inner side roller which can axially slide in the outer side roller;

the edge outer roller and the edge inner roller are provided with pin shafts for limiting the edge inner roller after the edge inner roller extends to the working size in the edge outer roller;

the drum surface of the left middle drum and the right middle drum is provided with drum cutting teeth in a multi-helix symmetrical mode, the drum surface of the outer drum is provided with drum cutting teeth in a multi-helix symmetrical mode, the side part and the end face of one end of the inner drum far away from the outer drum are respectively provided with a side end cover cutting tooth and an end disc cutting tooth, and the side end cover cutting tooth and the end disc cutting tooth are both arranged in a multi-helix symmetrical mode.

Furthermore, the inner wall of the edge outer roller is provided with a radial lubricating groove, the outer wall of the edge inner roller is provided with an axial lubricating groove which is in cross contact with the radial lubricating groove, and the edge outer roller is provided with an oil filling hole communicated with the radial lubricating groove.

Furthermore, spline seats are fixedly arranged in the outer side roller close to one end of the left middle roller and one end of the right middle roller, one side of each spline seat close to the inner side roller is fixedly connected with an adjusting block, a telescopic oil cylinder is detachably fixed on the adjusting blocks through an oil cylinder seat, and the output end of the telescopic oil cylinder is fixedly connected with the inner side roller.

Furthermore, the oil cylinder seat is of a two-half-circle structure, the inner diameter of the two-half-circle structure is matched with the outer diameter of the telescopic oil cylinder, the two-half-circle structure is in butt joint with the telescopic oil cylinder and is connected together through a nut, a gasket and a bolt, the two-half-circle structure is axially fixed on the adjusting block through a bolt hole in the circumference through the bolt, and the telescopic oil cylinder is fixedly connected with the adjusting block together.

Furthermore, a key is fixedly arranged on the inner wall of the edge outer roller, a key groove corresponding to the key position and matched with the key position is arranged on the edge inner roller, the edge inner roller is arranged in the edge outer roller through the key and the key groove, and the edge inner roller can axially slide along the key under the action of the telescopic oil cylinder.

Further, the key is fixed on the inner wall of the edge outer drum through a screw arranged on the outer wall of the edge outer drum.

Furthermore, the other side of the spline seat is fixedly connected to the end face of the side of the speed reducer, spline shafts matched with the spline seat are respectively arranged on two sides of the speed reducer, and the spline shafts are arranged in the spline seat to fixedly connect the speed reducer with the left roller and the right roller.

Further, a material guide plate is arranged on the left rotary drum or the right rotary drum.

Furthermore, two inner sides of the speed reducer support are matched with the left middle roller and the right middle roller through seam allowances respectively and are fixedly connected with the left middle roller and the right middle roller through bolts respectively.

The utility model provides a cutting drum mechanism for a digging and anchoring machine, which arranges drum picks on the drum surfaces of a left middle drum and a right middle drum and on the drum surfaces of a left side drum and a right side drum and an outer side drum symmetrically by a plurality of spiral lines, and the side end cover picks and the end disc picks which are symmetrically arranged in a multi-helix manner are respectively arranged on the side part and the end surface of the outer end of the inner side drum of the left drum and the right drum, when the cutting drum for the anchor driving machine works, the track diameter of the cutting pick tip at the outer end part of the drum is gradually reduced, the corners are in arc transition, thus, the cutting track of the cutting pick of the whole cutting drum presents a cylindrical shape in the middle part and conical shapes at the two sides, therefore, the problems of stress concentration caused by the fact that the section of the drum cutting roadway is rectangular and corners are right-angled, potential safety hazards caused by the fact that coal walls are easy to fall off and the like are effectively solved. And, the utility model provides a pair of cut-off drum mechanism for driving and anchoring machine, after the cylinder stretched predetermined working dimension in the outer cylinder in limit at the limit of the cylinder on the left side and the cylinder on the right, the installation pin axle was spacing to the interior cylinder in the limit on the outer cylinder in limit, had strengthened the stability of cylinder in the limit in the outer cylinder in limit to the limit interior cylinder in the outer cylinder in the limit of having avoided carrying out the cutting during operation atress great after stretching out, the vibration is great, makes flexible hydro-cylinder receive the vibration and the consequence of damaging easily.

Drawings

Fig. 1 is a schematic structural diagram of a cutting drum mechanism for an excavator according to an embodiment of the present invention;

fig. 2 is a schematic structural view of left and right rollers of a cutting roller mechanism for an excavator according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of the left and right rollers of the cutting roller mechanism for the excavator according to the embodiment of the present invention;

fig. 4 is a left side view of the left and right rollers of the cutting roller mechanism for the excavator according to the embodiment of the present invention;

fig. 5 is a schematic structural view of the inner rollers of the left and right rollers of the cutting roller mechanism for the heading and anchoring machine according to the embodiment of the present invention;

fig. 6 is a schematic view of the spline seat and the speed reducer bracket of the cutting drum mechanism for the driving and anchoring machine according to the embodiment of the present invention;

fig. 7 is a schematic structural view of a speed reducer bracket and a spline shaft of the cutting drum mechanism for the tunneling and anchoring machine provided by the embodiment of the present invention.

Detailed Description

Referring to fig. 1, the embodiment of the utility model provides a pair of cut-off drum mechanism for anchor driving machine, including left side cylinder 1, left side well cylinder 2, right side well cylinder 3, right side cylinder 4, wherein, cylinder 2 is the cylinder of isostructure in the left side and right side well cylinder 3, and cylinder 2 is fixed the inboard that sets up at speed reducer support 18 with right side well cylinder 3 in the left side and being centrosymmetric, and left side cylinder 1 and right side cylinder 4 are the cylinder of isostructure, and left side cylinder 1 and right side cylinder 4 use left side well cylinder 2 and right side well cylinder 3 to fix the both sides that set up at speed reducer support 18 as centrosymmetric. And, the central axis setting of cylinder 1 in the left side, cylinder 2 in the left side, cylinder 3 in the right and cylinder 4 on the right can make cylinder 1 in the left side, cylinder 2 in the left side, cylinder 3 in the right and cylinder 4 on the right can keep the rotation circumferential rate of unified standard at the rotatory tunnelling in-process, has optimized the utility model discloses a tunnelling effect has improved the utility model discloses tunnelling efficiency at the tunnelling in-process.

Referring to fig. 2 and 3, the left and right rollers 1 and 4 include an outer edge roller 7 and an inner edge roller 13 axially slidable within the outer edge roller 7. The edge outer roller 7 and the edge inner roller 13 are provided with pin shafts 11, after the edge inner roller 13 extends to a preset working size in the edge outer roller 7, the edge inner roller 13 is limited on the edge outer roller 7 through the pin shafts 11, and meanwhile, the pin shafts 11 are fixed by clamp springs 12. The side inner drum 13 is limited by the pin shaft 11, the stability of connection between the side inner drum 13 and the side outer drum 7 can be enhanced, so that the phenomenon that the side inner drum 13 in the side outer drum 7 is stressed greatly when cutting is carried out after stretching out can be avoided, vibration is large, and the telescopic oil cylinder 9 connected between the side outer drum 7 and the side inner drum 13 in diameter is damaged due to vibration.

As a specific embodiment of the utility model, the inside of the one end of cylinder 2 and right middle drum 3 is fixed to be set up spline seat 20 in the fixed spline seat 20 that sets up of left middle drum 7 is close to in the limit outside the cylinder 7, and one side fixedly connected with adjusting block 8 that is close to in the limit cylinder 13 at spline seat 20, telescopic cylinder 9 passes through oil cylinder seat 17 detachably to be fixed on adjusting block 8, telescopic cylinder 9's output and 13 fixed connection in the limit.

Referring to fig. 4, as a specific embodiment of the present invention, the cylinder base 17 is two

semicircular structures

171 and 172 whose inner diameter matches the outer diameter of the telescopic cylinder 9, the two

semicircular structures

171 and 172 are butted on the telescopic cylinder 9 and connected together through the nut 14, the washer 15 and the bolt 16, and the two

semicircular structures

171 and 172 are axially fixed on the adjusting block 8 through the bolt hole on the circumference thereof by the bolt 173, so as to fixedly connect the telescopic cylinder 9 and the adjusting block 8 together. When the telescopic oil cylinder 9 is damaged and needs to be replaced, the oil cylinder seat 17 can be detached from the telescopic oil cylinder 9 only by detaching the bolt 173 and then detaching the nut 14 and the washer 15 on the bolt 16, and then the damaged telescopic oil cylinder 9 can be replaced by detaching the connection between the telescopic oil cylinder 9 and the edge inner roller 13. The telescopic oil cylinder 9 is simple and convenient to replace, and time and labor are saved.

As an embodiment of the present invention, a plurality of keys 10 are fixedly disposed on the inner wall of the edge outer drum 7 along the axial direction, and the plurality of keys 10 are uniformly distributed on the inner wall of the edge outer drum 7, and the keys 10 are fixed on the inner wall of the edge outer drum 7 by screws 5 disposed on the outer wall of the edge outer drum 7. Of course, as another embodiment of the present invention, the key 10 may be directly welded to the inner wall of the outer cylinder 7.

Referring to fig. 5, the inner side roller 13 is provided with a key groove 131 corresponding to the position of the key 10, and the key groove 131 is sized to match the key 10, and the inner side roller 13 is disposed in the outer side roller 7 through the key 10 and the key groove 131. When the telescopic cylinder 9 is telescopic, the edge inner roller 13 can slide axially in the edge outer roller 7 under the matching action of the key 10 and the key slot 131. Meanwhile, the inner edge roller 13 can be prevented from rotating radially relative to the outer edge roller 7 when the roller works by means of the radial limiting effect of the key 10 in the key slot 131.

As a specific embodiment of the utility model, 7 inner walls of the outer cylinder of limit are provided with radial lubrication slot along the circumferencial direction, and the outer wall of the inner cylinder of limit is provided with axial lubrication slot, radial lubrication slot and axial lubrication slot cross contact along the axle center direction. And the edge outer roller 7 is also provided with an oil filling hole communicated with the radial lubricating groove, lubricating oil can be injected into the radial lubricating groove through the oil filling hole, the lubricating oil entering the radial lubricating groove can flow into the axial lubricating groove which is in cross contact with the radial lubricating groove, and the matching surface of the edge outer roller 7 and the edge inner roller can be permeated with the lubricating oil. Therefore, the sufficient lubricity between the matching surfaces of the edge outer roller 7 and the edge inner roller can be ensured, and the friction force between the edge inner roller 13 and the edge outer roller 7 when the edge inner roller axially slides in the edge outer roller 7 can be greatly reduced, so that the abrasion between the edge outer roller 7 and the edge inner roller 13 when the cutting roller of the tunneling and anchoring machine works is reduced. After lubricating oil is injected from the oil filling hole, in order to prevent the lubricating oil from overflowing outwards, the screw 5 is screwed on the oil filling hole to seal the oil filling hole.

Wherein, the drum cutting picks 22 are arranged on the drum surfaces of the left middle drum 2 and the right middle drum 3 in a multi-helix symmetrical mode, the drum cutting picks 19 are arranged on the drum surfaces of the edge outer drums 7 of the left drum 1 and the right drum 4 in a multi-helix symmetrical mode, meanwhile, the side end cover cutting picks 132 and the end disc cutting picks 133 are respectively arranged on the side part and the end surface of the end of the edge inner drum 13 of the left drum 1 and the right drum 4 far away from the edge outer drum 7, and the side end cover cutting picks 132 and the end disc cutting picks 133 are also arranged in a multi-helix symmetrical mode. When the cutting drum for the heading and anchoring machine works, the track diameter of the cutting pick tooth point at the outer end part of the drum is gradually reduced, and corners are in circular arc transition, so that the cutting pick cutting track of the whole cutting drum presents the cylindrical shape at the middle part, and the two sides are in the conical shape, thereby effectively solving the problems that the section shape of a cutting tunnel of the drum is rectangular, the corners are in right angle, stress concentration is caused, the coal wall is easy to fall off, and the potential safety hazard exists.

As a specific embodiment of the present invention, referring to fig. 6 and 7, the other side of the spline housing 20 is fixedly connected to the side end face of the speed reducer support 18 through the axial positioning bolt 23, and the two sides of the speed reducer support 18 are respectively provided with the spline shafts 21 matched with the spline housing 20, and the spline shafts 21 are arranged in the spline housing 20 to fixedly connect the speed reducer support 18 with the left side roller 1 and the right side roller 4.

As a specific embodiment of the present invention, the two inner sides of the speed reducer bracket 18 are respectively engaged with the left middle roller 2 and the right middle roller 3 through the seam allowance and respectively connected through the bolt fixing.

As a specific embodiment of the present invention, the material guiding plate 6 is disposed on the left side roller 1 or the right side roller 4. The material guide plate 6 can prevent coal from splashing to two sides, so that the coal can fall down on the shovel plate.

The utility model provides a pair of cutting drum mechanism for anchor driving machine through the pick on the rationally distributed cylinder, can make the rectangle that the cutting tunnel shaping becomes the circular arc transition for the corner, makes the coal wall more stable safety. And because the inner wall of the outer side roller of the left and right side rollers and the outer wall of the inner side roller are respectively provided with the radial lubrication groove and the axial lubrication groove, the matching surfaces of the outer side roller and the inner side roller can be fully lubricated by injecting lubricating oil, so that the telescopic resistance of the telescopic oil cylinder is small, the stress is uniform, and the matching size between the rollers can be effectively protected. And after the edge inner roller extends to the preset working width, the edge inner roller is fixed in the edge outer roller by adopting the pin shaft and the clamp spring 8, so that the stability of the edge inner roller in the edge outer roller is enhanced, the whole roller is uniformly stressed, the vibration can be reduced during the cutting work, and the telescopic oil cylinder is prevented from being easily damaged due to the vibration. Meanwhile, the telescopic oil cylinder connected between the edge outer roller and the edge inner roller and the oil cylinder seat for fixing the telescopic oil cylinder are disassembled and assembled in a split mode, a balance valve and a base of the telescopic oil cylinder are avoided, time and labor are saved in installation and disassembly, and working efficiency is high.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A cutting drum mechanism for a tunneling and anchoring machine is characterized by comprising

2. The cutting drum mechanism for a heading and anchoring machine of claim 1, wherein: the inner wall of the edge outer roller is provided with a radial lubricating groove, the outer wall of the edge inner roller is provided with an axial lubricating groove which is in cross contact with the radial lubricating groove, and the edge outer roller is provided with an oil filling hole communicated with the radial lubricating groove.

3. The cutting drum mechanism for a heading and anchoring machine of claim 2, wherein: the inner part of one end of the edge outer roller, which is close to the left middle roller and the right middle roller, is fixedly provided with a spline seat, one side of the spline seat, which is close to the edge inner roller, is fixedly connected with an adjusting block, a telescopic oil cylinder is detachably fixed on the adjusting block through an oil cylinder seat, and the output end of the telescopic oil cylinder is fixedly connected with the edge inner roller.

4. A cutting drum mechanism for a heading and anchoring machine according to claim 3 wherein: the oil cylinder seat is of a two-half-circle structure, the inner diameter of the two-half-circle structure is matched with the outer diameter of the telescopic oil cylinder, the two-half-circle structure is in butt joint with the telescopic oil cylinder and is connected with the telescopic oil cylinder through a nut, a gasket and a bolt, the two-half-circle structure is axially fixed on the adjusting block through a bolt hole in the circumference through the bolt, and the telescopic oil cylinder is fixedly connected with the adjusting block.

5. A cutting drum mechanism for a heading and anchoring machine according to claim 3 wherein: the inner wall of the edge outer roller is fixedly provided with a key, the edge inner roller is provided with a key groove corresponding to and matched with the key position, the edge inner roller is arranged in the edge outer roller through the key and the key groove, and the edge inner roller can axially slide along the key under the action of the telescopic oil cylinder.

6. The cutting drum mechanism for a heading and anchoring machine of claim 5, wherein: the keys are fixed on the inner wall of the edge outer roller through screws arranged on the outer wall of the edge outer roller.

7. A cutting drum mechanism for a heading and anchoring machine according to claim 3 wherein: the other side of the spline seat is fixedly connected to the side end face of the speed reducer, spline shafts matched with the spline seat are arranged on two sides of the speed reducer respectively, and the spline shafts are arranged in the spline seat to fixedly connect the speed reducer with the left roller and the right roller.

8. The cutting drum mechanism for a heading and anchoring machine of claim 6, wherein: and a material guide plate is arranged on the left rotary drum or the right rotary drum.

9. The cutting drum mechanism for a heading and anchoring machine of claim 1, wherein: the two inner sides of the speed reducer support are matched with the left middle roller and the right middle roller through rabbets respectively and are fixedly connected through bolts respectively.