CN115405294A

CN115405294A - Cutting head assembly and heading machine

Info

Publication number: CN115405294A
Application number: CN202110578109.3A
Authority: CN
Inventors: 宋如海; 魏民; 韩鲁; 宋凯; 顾斌; 陈朋
Original assignee: Shandong Yanzhou Coal Mining Heibao Mining Equipment Co ltd
Current assignee: Shandong Yanzhou Coal Mining Heibao Mining Equipment Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-11-29

Abstract

The invention discloses a cutting head assembly and a heading machine, wherein the cutting head assembly comprises: the mobile seat, the cantilever and the cutting head. The movable seat can be movably connected to the body of the heading machine in the width direction of the roadway. The cantilever is movably connected with the movable seat. The cutting head comprises a cutting part and a revolving part, and the cutting part is rotatably connected to the revolving part around the rotating axis of the cutting part so as to realize cutting action; the swivel part is rotatably connected to the front end face of the boom about its rotational axis. When the rotary part rotates, the cutting part can be driven to rotate, so that the rotation axis of the cutting part is switched between the horizontal direction and the vertical direction.

Description

Cutting head assembly and heading machine

Technical Field

The invention relates to the technical field of mining, in particular to a cutting head assembly and a heading machine.

Background

Some mine roadways have inclined roofs under the influence of geological conditions. As shown in fig. 1, the roadway includes a roof 11, a floor 12, and two side walls 13 located between the roof 11 and the floor 12. As shown in fig. 1, the roof 11 of the roadway is inclined, and the roof 11 forms an obtuse angle with one of the side walls 13, and the roof 11 forms an acute angle with the other side wall 13.

The rotation axes of the cutting head 324 of the tunneling machine in the related art are all horizontally arranged, so that the cutting area is large to improve the tunneling efficiency. However, in the above-mentioned roadway with the inclined roof, the cutting head 324 cannot cut the rock 15 located in the acute angle region formed by the roof 11 and the other side wall 13 during the cutting operation of the heading machine, and thus a cutting dead angle is formed.

Disclosure of Invention

The embodiment of the invention provides a cutting head assembly capable of flexibly adjusting the rotation axis direction of a cutting head so as to solve the problem that cutting cannot be performed in the related art.

The embodiment of the invention also provides a heading machine comprising the cutting head assembly.

The cutting head assembly provided by the embodiment of the invention is applied to a heading machine, and comprises: the movable seat can be movably connected to a vehicle body of the tunneling machine along the width direction of a roadway; the cantilever is movably connected with the movable seat; the cutting head comprises a cutting part and a revolving part, and the cutting part is rotatably connected with the revolving part around the rotation axis of the cutting part so as to realize cutting action; the rotary part is rotatably connected to the front end surface of the cantilever around the rotation axis of the rotary part; when the rotary part rotates, the cutting part can be driven to rotate, so that the rotation axis of the cutting part is switched between the horizontal direction and the vertical direction.

According to some embodiments of the invention, the swivel is arranged such that the swivel axis is perpendicular to the front end face of the cantilever.

According to some embodiments of the invention the axis of rotation of the turning part and the axis of rotation of the cutting part are perpendicular to each other.

According to some embodiments of the invention, the cantilever is hinged to the movable seat and can swing back and forth around a hinge point along the height direction of the roadway.

According to some embodiments of the invention, the cutting parts are provided at opposite ends of the turning part, respectively, and a part of the turning part located between the two cutting parts is rotatably connected to the boom.

According to some embodiments of the invention, the cutting head assembly further comprises a gyrator disposed at a front end face of the boom;

the gyrator is connected with the gyration part in a driving mode so as to drive the gyration part to rotate.

The heading machine of the embodiment of the invention comprises:

a vehicle body; and

the cutting head assembly of any one of the above claims, wherein the movable seat of the cutting head assembly is movably connected to the vehicle body along the width direction of the roadway.

According to some embodiments of the invention, the heading machine further comprises a blade mechanism comprising:

a main shovel plate connected to a front end portion of the vehicle body; the main shovel plate comprises a first side part and a second side part which are oppositely arranged;

the first abutting piece is movably connected to the first side part; and

the second abutting piece is movably connected to the second side part;

when the first abutting piece and the second abutting piece are far away from each other, the first abutting piece and the second abutting piece can abut against two side walls of a roadway respectively so as to limit the position of the main shovel plate relative to a bottom plate of the roadway.

According to some embodiments of the invention, the first abutting member is telescopically connected to the first side portion along a straight line, and the second abutting member is telescopically connected to the second side portion along a straight line.

According to some embodiments of the invention, the blade mechanism further comprises:

the first guide assembly is used for guiding the first butting piece to move relative to the first side part;

the second guide assembly is used for guiding the second butting piece to move relative to the second side part;

the first driving assembly is arranged on the main shovel plate and used for driving the first abutting part to move; and

and the second driving assembly is arranged on the main shovel plate and used for driving the second abutting part to move.

According to some embodiments of the invention, the vehicle body comprises a body portion, a slip fit portion, and a drive mechanism;

the sliding fit part is movably connected with the body part along the length direction of the roadway; the movable seat of the cutting head assembly is movably connected with the sliding fit part;

the driving mechanism is arranged on the body part and used for driving the sliding fit part to move.

One embodiment of the above invention has the following advantages or benefits:

according to the cutting head assembly provided by the embodiment of the invention, the technical means that the movable seat can be movably connected to the vehicle body of the heading machine along the width direction of the roadway is adopted, and the technical means that the rotation axis of the cutting part can be switched between the horizontal direction and the vertical direction are combined, so that the effect of flexibly adjusting the rotation axis direction of the cutting head is achieved, and the effect of cutting without dead angles is finally realized.

In addition, different from the scheme that the cutting head assembly is hinged to the vehicle body in the related art, the cutting head assembly of the heading machine provided by the embodiment of the invention can be movably connected to the vehicle body of the heading machine along the width direction of the roadway by adopting a technical means that the moving seat can be movably connected to the vehicle body of the heading machine, so that the cutting head assembly can be moved back and forth in the width direction of the roadway during cutting operation. Because the movable seat, the cantilever and the cutting head all move in a reciprocating manner, the problem of motion interference in the related technology can not occur on the premise of shortening the length of the empty top distance. And moreover, the length of the cantilever is shortened, so that the material cost of the cantilever can be saved, and the aim of shortening the length of the empty top distance can be fulfilled.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a schematic view showing a cutting head of the related art that cannot cut a roadway having an inclined roof.

Fig. 2 is a schematic plan view of a heading machine in the related art in operation.

Figure 3 shows a schematic side view of a heading machine of the related art in operation.

Fig. 4 is a schematic structural view showing the cutting head assembly of the heading machine according to the embodiment of the invention moved to one side, wherein the rotation axis of the cutting head is in the horizontal direction.

Fig. 5 is a schematic structural view showing the movement of the cutting head assembly of the heading machine to the other side, wherein the rotation axis of the cutting head is in the horizontal direction, according to the embodiment of the invention.

Figure 6 shows a schematic structural view of a heading machine according to an embodiment of the invention, in which the rotational axis of the cutting head is in the vertical direction.

Fig. 7 is a schematic structural diagram illustrating a view angle of the abutting member in the blade mechanism according to the embodiment of the present invention in a retracted state.

Fig. 8 is a schematic structural view showing a perspective view of the abutting member in the blade mechanism according to the embodiment of the present invention in an extended state.

Fig. 9 is a schematic structural view showing another perspective of the resisting member in the blade mechanism according to the embodiment of the present invention in a contracted state.

Fig. 10 is a schematic structural view showing another perspective of the supporting member in the blade mechanism according to the embodiment of the present invention in the extended state.

Fig. 11 is a schematic structural view of a heading machine according to another embodiment of the present invention.

Wherein the reference numerals are as follows:

1. roadway

11. Top plate

12. Bottom plate

13. Side wall

100. Support frame

200. Shovel plate mechanism

210. Main shovel plate

211. A first side part

212. Second side part

220. First abutting piece

221. First connecting part

222. First enclosing part

2221. The first material receiving surface

2222. First abutting surface

230. Second abutting part

231. Second connecting part

232. Second enclosure part

2321. The second material receiving surface

2322. Second abutting surface

240. First guide assembly

241. First sleeve

242. First guide bar

250. Second guide assembly

251. Second sleeve

252. Second guide bar

261. First drive assembly

262. Second drive assembly

271. First star wheel assembly

272. Second starwheel assembly

310. Vehicle body

311. Sliding fit part

312. Driving mechanism

313. Body part

320. Cutting head assembly

321. Movable seat

322. Cantilever arm

323. Rotary device

324. Cutting head

3241. Cutting part

3242. Turning part

L, space-to-head distance

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a detailed description thereof will be omitted.

As shown in fig. 1, fig. 1 is a schematic view showing that a cutting head cannot cut a roadway having an inclined roof in the related art. The roadway comprises a roof 11, a floor 12 and two side walls 13 located between the roof 11 and the floor 12. As shown in fig. 1, the roof 11 of the roadway is inclined, and the roof 11 forms an obtuse angle with one of the side walls 13, and the roof 11 forms an acute angle with the other side wall 13. The cutting head 324 with the horizontally arranged axis of rotation cannot cut rock 15 located in the acute angle region formed by the roof 11 and the other side wall 13, so that a cutting dead angle is formed.

As shown in fig. 2 and 3, fig. 2 is a schematic plan view of a heading machine in the related art in operation. Figure 3 shows a schematic side view of a heading machine of the related art in operation. The heading machine in the related art includes a vehicle body 310 and a cutter head assembly 320, and the cutter head assembly 320 is hinged to the vehicle body 310. When cutting, the cutter head assembly 320 swings back and forth along the width direction of the roadway around the hinge point.

Meanwhile, the cut roadway needs to be temporarily supported in time. At present, a plurality of supports 100 arranged side by side are adopted to support a top plate 11 and a side wall 13 of a roadway.

As shown in fig. 3, the distance between the bracket 100 located at the foremost end and the cutting face is referred to as the empty head distance L, which can be understood as the length of the part of the roof 11 of the roadway that is not supported by the bracket 100. It will be appreciated that the shorter the empty head distance L, the higher the safety of roadway support, and the longer the empty head distance L, the greater the risk of collapse of the roof panel 11 which is not supported by the support 100.

As shown in fig. 2, the cutter head assemblies 320 of the related art are all hinged to the car body 310, and if the clearance L is controlled to be a short distance, the cutter head assemblies 320 hit the support 100 located at the foremost end of the roadway when the cutter head assemblies 320 swing back and forth, and thus the movement interference occurs.

Therefore, it is a problem to be solved in the art how to consider shortening the clearance L and ensure that the cutting head assembly 320 does not interfere with the movement of the support 100 in the heading machine of the related art.

Based on the problems in the related art, the embodiments of the present invention provide a heading machine and a cutting head assembly thereof, in which the cutting head assembly can move along the width direction of a roadway and the rotation axis direction of the cutting head can be flexibly adjusted.

As shown in fig. 4 to 6, fig. 4 is a schematic structural view illustrating the cutting head assembly of the heading machine according to the embodiment of the present invention moved to one side, wherein the rotation axis of the cutting head is in the horizontal direction. Fig. 5 is a schematic structural view showing the movement of the cutting head assembly of the heading machine to the other side, wherein the rotation axis of the cutting head is in the horizontal direction, according to the embodiment of the invention. Figure 6 shows a schematic structural view of a heading machine according to an embodiment of the invention, in which the rotational axis of the cutting head is in the vertical direction. The heading machine of the embodiment of the invention comprises a vehicle body 310 and a cutting head assembly 320. The cutter head assembly 320 is movably coupled to the body 310 in a width direction of the roadway.

The cutting head assembly of the embodiment of the invention comprises: the device comprises a movable seat 321, a cantilever 322 and a cutting head 324, wherein the movable seat 321 can be movably connected with the body 310 of the heading machine along the width direction of a roadway; the cantilever 322 is movably connected to the moving seat 321; the cutting head 324 comprises a cutting portion 3241 and a turning portion 3242, the cutting portion 3241 being rotatably connected to the turning portion 3242 about its axis of rotation for effecting a cutting action; the turn portion 3242 is rotatably connected to the front end surface of the cantilever 322 about its rotation axis; when the turn portion 3242 is rotated, the cutting portion 3241 can be rotated to switch the rotation axis of the cutting portion 3241 between the horizontal direction and the vertical direction.

According to the cutting head assembly 320 provided by the embodiment of the invention, by adopting the technical means that the rotary part 3242 is rotatably connected to the front end face of the cantilever 322 around the rotation axis thereof and further drives the cutting part 3241 to rotate, so that the rotation axis of the cutting part 3241 is switched between the horizontal direction and the vertical direction, when the cutting head assembly 320 provided by the embodiment of the invention faces the rock in the acute angle area of the roadway with the inclined top plate, which is described in fig. 1, the rotation axis of the cutting part 3241 can be adjusted from the horizontal direction to the vertical direction, and thus, the cutting part 3241 can conveniently cut the rock 15.

In addition, in combination with the above-described construction in which the cutter head assembly 320 can be movably coupled to the vehicle body 310 in the width direction of the roadway, flexibility in adjusting the rotation axis of the cutting unit 3241 is further ensured. In the face of complex roof shapes, the cutter head assembly 320 of the present embodiment of the invention can also achieve full cutting without dead angle areas.

It should be noted that the cutting head assembly 320 of the embodiment of the present invention combines the technical means that the movable seat 321 can be movably connected to the body 310 of the heading machine along the width direction of the roadway with the technical means that the rotation axis of the cutting part 3241 can be switched between the horizontal direction and the vertical direction, so as to achieve the effect of flexibly adjusting the rotation axis direction of the cutting head, and finally achieve the effect of no cutting dead angle.

In addition, unlike the related art in which the cutter head assembly is hinged to the vehicle body, the cutter head assembly 320 of the heading machine according to the embodiment of the present invention can be movably connected to the vehicle body 310 of the heading machine in the width direction of the roadway by using the technical means that the movable base 321 enables the cutter head assembly 320 to reciprocate in the width direction of the roadway during the cutting operation. Since the movable base 321, the cantilever 322 and the cutting head 324 are moved back and forth, the problem of motion interference in the related art does not occur on the premise of shortening the length of the empty-top distance L. In addition, the length of the cantilever 322 is shortened, so that the material cost of the cantilever 322 can be saved, and the aim of shortening the length of the empty top distance L can be fulfilled.

With reference to fig. 4 to 6, the front end of the car body 310 is provided with a sliding fit portion 311, and the sliding fit portion 311 is slidably fitted with the moving seat 321 of the cutter head assembly 320, so that the cutter head assembly 320 can move back and forth along the width direction of the roadway.

In one embodiment, the movable base 321 may be a slide block, and the sliding engagement portion 311 may be a slide rail, and the slide block is slidably connected to the slide rail, but should not be limited thereto, and other movable structures in the art may also be adopted.

It should be noted that other structures of the body 310 may adopt well-known designs, and are not described herein.

With continued reference to fig. 4-6, the cutter head assembly further includes a rotator 323, the rotator 323 is disposed on the front end surface of the boom 322. The rotator 323 is drivingly connected to the turn portion 3242 to drive the turn portion 3242 to rotate.

The rotational axis of the turn 3242 is perpendicular to the front end face of the cantilever 322. In other words, the rotational axis of the turnarounds 3242 may be substantially parallel to the length direction of the roadway.

Further, the rotational axis of the carrousel 3242 and the rotational axis of the cutting section 3241 are perpendicular to each other.

Referring to fig. 5 and 6, fig. 5 shows that the rotation axis of the cutting portion 3241 is in a horizontal direction, i.e., along the width direction of the roadway. Fig. 6 shows that the axis of rotation of the cutting section 3241 is vertical, i.e. in the vertical direction of the roadway. The axis of rotation of the cutting section 3241 can be switched back and forth between horizontal and vertical.

As an example, the cantilever 322 is hinged to the moving seat 321, and can swing back and forth in the height direction of the tunnel around the hinge point. During the cutting operation, the boom 322 can be reciprocated along the height direction of the roadway as well as the width direction of the roadway by the movable base 321.

Of course, it is understood that the cantilever 322 may be connected to the movable base 321 movably in a straight line along the height direction of the roadway.

In one embodiment, the turning part 3242 is provided with cutting parts 3241 at opposite ends thereof, respectively, and a portion of the turning part 3242 between the two cutting parts 3241 is rotatably connected to the boom 322. Specifically, the turning portion 3242 may be a cylindrical structure, both ends of which are respectively provided with a cutting portion 3241, and the middle portion of which is connected to the rotator 323.

Fig. 7 is a schematic structural view of a perspective view of the resisting member in the blade mechanism according to the embodiment of the present invention in a retracted state, as shown in fig. 7 and 8. Fig. 8 is a schematic structural view showing a view angle of the abutting member in the blade mechanism according to the embodiment of the present invention in an extended state. The heading machine according to the embodiment of the present invention further includes a blade mechanism 200, and the blade mechanism 200 may be hinged to a front end portion of the vehicle body 310.

Blade mechanism 200 includes: a main blade 210, a first abutting member 220, and a second abutting member 230. The main blade 210 can be connected to a front end portion of a vehicle body of the heading machine. Main blade 210 includes two oppositely disposed first and

second sides

211 and 212. The first abutting member 220 is movably connected to the first side portion 211. The second abutting member 230 is movably connected to the second side portion 212. When the first abutting part 220 and the second abutting part 230 are far away from each other, the first abutting part 220 and the second abutting part 230 can abut against two side walls of the roadway respectively to limit the position of the main shovel 210 relative to the bottom plate of the roadway.

When the heading machine is cutting, the heading machine is usually positioned in the middle area of the roadway along the width direction, and the cutting operation is realized by the back-and-forth movement of the cutting head. In the cutting process of the cutting head, the reaction force of the coal mine can be received, and the reaction force can drive the whole heading machine to deviate towards the direction of one side wall of the roadway. Over time, the side face of the heading machine is tightly attached to the side wall of the roadway, so that the cutting operation cannot be continued, and finally, a large amount of manpower and material resources are needed to move the heading machine to the middle area of the roadway again.

When the shovel mechanism 200 of the embodiment of the present invention is used, the first abutting member 220 and the second abutting member 230 are far away from each other and abut against two side walls of a roadway respectively. At this time, although the cutting head of the heading machine may also receive the reaction force of the coal mine during the cutting operation, the first abutting member 220 and the second abutting member 230 of the shovel mechanism of the embodiment of the present invention abut against two side walls of the roadway respectively, so that the position of the main shovel 210 relative to the floor of the roadway is fixed. Further, since the main blade 210 is connected to the body 310 of the heading machine, the body 310 of the heading machine does not move left and right in the width direction of the roadway.

Therefore, according to the shovel plate mechanism of the embodiment of the invention, the first abutting part 220 and the second abutting part 230 abut against two side walls of a roadway respectively to limit the position of the main shovel plate 210, so that the effect of relatively fixing the body of the heading machine is achieved, and the problem that the heading machine deviates to one side wall of the roadway in the related art is effectively solved.

It should be noted that, during the cutting operation, the cutting head assembly 320 of the embodiment of the present invention moves back and forth along the width direction of the roadway, so that the heading machine of the embodiment of the present invention is easily deviated to one side of the roadway. In order to solve the problem of deviation, the embodiment of the present invention combines the technical means that the first abutting part 220 and the second abutting part 230 of the shovel mechanism 200 abut against two side walls of the roadway respectively, so as to effectively solve the problem of deviation of the heading machine and ensure that the heading machine is always located in the middle of the roadway.

With reference to fig. 7 and 8, the first abutting element 220 is telescopically connected to the first side portion 211 along a straight line, and the second abutting element 230 is telescopically connected to the second side portion 212 along a straight line.

It should be noted that, in this embodiment, both the first abutting piece 220 and the second abutting piece 230 can move relative to the main shovel 210 along the width direction of the roadway.

When the first abutting member 220 and the second abutting member 230 approach each other, the first abutting member 220 and the second abutting member 230 gather toward the main shovel 210 and do not abut against two side walls of the roadway. When the first abutting piece 220 and the second abutting piece 230 are far away from each other, the first abutting piece 220 and the second abutting piece 230 expand outwards until abutting against two side walls of the roadway.

Further, when the first abutting piece 220 and the second abutting piece 230 are gathered towards the main shovel board 210, at least a part of the first abutting piece 220 and at least a part of the second abutting piece 230 can be hidden at the lower surface of the main shovel board 210.

Of course, it is understood that the first abutting member 220 and the second abutting member 230 are not limited to moving along a straight line. For example, the first abutting member 220 may be rotatably connected to the first side portion 211, and the second abutting member 230 may be rotatably connected to the second side portion 212.

When the first abutting piece 220 and the second abutting piece 230 rotate away from each other, the first abutting piece 220 and the second abutting piece 230 can abut against two side walls of the roadway respectively. When the first abutting member 220 and the second abutting member 230 rotate in a direction approaching each other, at least a portion of the first abutting member 220 can be hidden to the lower surface of the first side portion 211, and at least a portion of the second abutting member 230 can be hidden to the lower surface of the second side portion 212. The effects of reducing the volume of the shovel plate mechanism and facilitating storage and transportation are also achieved.

With reference to fig. 7 and fig. 8, the first abutting member 220 includes a first connecting portion 221 and a first surrounding portion 222, the first connecting portion 221 is movably connected to the first side portion 211, and the first surrounding portion 222 is connected to an outer side surface of the first connecting portion 221 opposite to the main blade 210. The first enclosing part 222 has a first receiving surface 2221 and a first abutting surface 2222 opposite to each other.

The second abutting member 230 has a similar structure to the first abutting member 220, specifically, the second abutting member 230 includes a second connecting portion 231 and a second surrounding portion 232, the second connecting portion 231 is movably connected to the second side portion 212, and the second surrounding portion 232 is connected to an outer side surface of the second connecting portion 231 opposite to the main shovel 210. The second enclosing part 232 has a second material receiving surface 2321 and a second top abutting surface 2322, which are disposed oppositely.

When the first abutting part 220 and the second abutting part 230 are close to each other, the first receiving surface 2221 can gather the material to the upper surface of the main shovel plate 210, and the second receiving surface 2321 can gather the material to the upper surface of the main shovel plate 210, so that the effect of gathering the material on the two sides of the roadway to the middle area is achieved.

When the first abutting member 220 and the second abutting member 230 are far away from each other, the first abutting surface 2222 can abut against one side wall of the roadway, and the second abutting surface 2322 can abut against the other side wall of the roadway, so as to achieve the effect of fixing the main shovel 210.

Further, the first receiving surface 2221 and the first top-resisting surface 2222 may be arc-shaped surfaces, and the second receiving surface 2321 and the second top-resisting surface 2322 may be arc-shaped surfaces. Thus, the effect of gathering and resisting can be better achieved.

In one embodiment, the first connecting portion 221 and the first surrounding blocking portion 222 may be both plate-shaped, and the first surrounding blocking portion 222 is arc-shaped plate-shaped and perpendicular to the first connecting portion 221.

In an embodiment, the second connecting portion 231 and the second surrounding portion 232 may be both plate-shaped, and the second surrounding portion 232 has an arc-shaped plate shape and is perpendicular to the second connecting portion 231.

With continued reference to fig. 7 and 8, the upper surface of the main blade 210 is further provided with a first starwheel assembly 271 and a second starwheel assembly 272, and the coal mine on the upper surface of the main blade 210 can be transported to the rear by the rotation of the first starwheel assembly 271 and the second starwheel assembly 272.

Fig. 9 is a schematic structural view of another perspective view of the blade mechanism of the present invention when the abutting member is in the retracted state, as shown in fig. 9 and 10. Fig. 10 is a schematic structural view showing another perspective of the blade mechanism according to the embodiment of the present invention, in which the abutting member is in the extended state. The blade mechanism further includes: a first guide assembly 240 and a second guide assembly 250. The first guiding component 240 is used for guiding the movement of the first abutting piece 220 relative to the first side portion 211. The second guiding component 250 is used for guiding the movement of the second abutting component 230 relative to the second side portion 212.

The first guiding assembly 240 includes a first sleeve 241 and a first guiding rod 242, the first sleeve 241 is disposed on the first side portion 211, the first guiding rod 242 is disposed on the first abutting member 220, and the first guiding rod 242 is telescopically inserted into the first sleeve 241. The second guiding assembly 250 includes a second sleeve 251 and a second guiding rod 252, the second sleeve 251 is disposed on the second side portion 212, the second guiding rod 252 is disposed on the second abutting member 230, and the second guiding rod 252 is telescopically disposed in the second sleeve 251.

Of course, it is understood that the first guide assembly 240 and the second guide assembly 250 are not limited to the engagement manner of the sleeve and the guide rod, and may be a guide groove, a guide rail, etc.

With continued reference to fig. 9 and 10, the blade mechanism further includes a first driving assembly 261 and a second driving assembly 262 disposed on the main blade 210, where the first driving assembly 261 is used for driving the first abutting member 220 to move, and the second driving assembly 262 is used for driving the second abutting member 230 to move.

In an embodiment, the first driving assembly 261 and the second driving assembly 262 may be both hydraulic cylinders, and the first abutting member 220 and the second abutting member 230 may continuously abut against two side walls through the arrangement of the hydraulic cylinders.

As shown in fig. 11, fig. 11 is a schematic structural view of a heading machine according to another embodiment of the present invention. Vehicle body 310 includes a body portion 313, a slide-fit portion 311, and a drive mechanism 312. The cutting head assembly 320 is movably connected to the slip fit portion 311. The slide-fitting portion 311 is movably connected to the body portion 313 along the length direction of the tunnel. The driving mechanism 312 is disposed on the body 313 and drives the sliding-fit portion 311 to move.

That is, in this embodiment, the cutter head assembly 320 can move along the width direction of the roadway as well as along the length direction of the roadway. By designing the cutter head assembly 320 to be movable along the length of the roadway, the body portion 313 can be stationary while the cutter head assembly 320 is moved by driving the slip fit portion 311 only to move when the roadheader is cutting.

In addition, generally, the boom 322 of the cutter head assembly 320 moves in an up-and-down swinging manner, so that only an arc-shaped cutting plane is obtained when the cutter head 324 operates. In this embodiment, by designing the cutter head assembly 320 to be longitudinally retractable, a straight cutting plane can be obtained.

In conclusion, the cutting head assembly and the heading machine provided by the embodiment of the invention have the advantages and beneficial effects that:

the cutting head assembly 320 of the embodiment of the invention combines the technical means that the movable seat 321 can be movably connected to the vehicle body 310 of the heading machine along the width direction of the roadway with the technical means that the rotation axis of the cutting part 3241 can be switched between the horizontal direction and the vertical direction, so as to achieve the effect of flexibly adjusting the rotation axis direction of the cutting head and finally realize the effect of cutting without dead angles.

In addition, unlike the related art in which the cutter head assembly is hinged to the vehicle body, the cutter head assembly 320 of the heading machine according to the embodiment of the present invention is configured such that the cutter head assembly 320 can reciprocate in the width direction of the roadway during the cutting operation by adopting a technical means that the movable base 321 can be movably connected to the vehicle body 310 of the heading machine in the width direction of the roadway. Since the movable base 321, the cantilever 322 and the cutting head 324 are moved back and forth, the problem of motion interference in the related art does not occur on the premise of shortening the length of the empty-top distance L. In addition, the length of the cantilever 322 is shortened, so that the material cost of the cantilever 322 can be saved, and the aim of shortening the length of the empty top distance L can be fulfilled.

In the embodiments of the invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. Specific meanings of the above terms in the embodiments of the invention may be understood by those of ordinary skill in the art according to specific situations.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred device or unit must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention.

In the description herein, reference to the term "one embodiment," "some embodiments," "a specific embodiment," or the like, means 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments of the invention should be included in the protection scope of the embodiments of the invention.

Claims

1. The utility model provides a cutterhead subassembly, is applied to the entry driving machine which characterized in that, the cutterhead subassembly includes:

a movable base (321) which is connected to a vehicle body (310) of the heading machine so as to be movable in the width direction of the roadway;

a cantilever (322) movably connected to the moving seat (321); and

a cutting head (324) comprising a cutting portion (3241) and a carrousel portion (3242), the cutting portion (3241) being rotatably connected to the carrousel portion (3242) about its axis of rotation for effecting a cutting action; the turnabout (3242) is rotatably connected to a front end surface of the cantilever (322) about a rotation axis thereof;

when the rotary part (3242) rotates, the cutting part (3241) can be driven to rotate, so that the rotation axis of the cutting part (3241) is switched between the horizontal direction and the vertical direction.

2. The cutter head assembly of claim 1, wherein the axis of rotation of the swivel portion (3242) is perpendicular to the front face of the boom (322).

3. The cutter head assembly of claim 2, wherein the rotational axis of the turret (3242) and the rotational axis of the cutter portion (3241) are perpendicular to each other.

4. The cutter head assembly according to claim 1, characterized in that the cantilever (322) is hinged to the moving seat (321) and can swing back and forth in the height direction of the roadway around the hinge point.

5. The cutter head assembly according to any one of claims 1 to 4, characterized in that opposite ends of the gyration portion (3242) are respectively provided with the cutter portions (3241), and the part of the gyration portion (3242) between two of the cutter portions (3241) is rotatably connected to the cantilever (322).

6. The cutter head assembly according to any one of claims 1 to 4, characterized in that the cutter head assembly further comprises a gyrator (323) provided at a front end face of the boom (322);

the gyrator (323) is connected with the gyrating portion (3242) in a driving mode to drive the gyrating portion (3242) to rotate.

7. A heading machine, comprising:

a vehicle body (310); and

the cutter head assembly of any one of claims 1 to 6, the movable seat (321) of the cutter head assembly (320) being movably connected to the car body (310) in a width direction of the roadway.

8. The heading machine according to claim 7, further comprising a blade mechanism (200), the blade mechanism (200) comprising:

a main blade (210) connected to the front end of the vehicle body (310); the main blade (210) comprises two oppositely arranged first side portions (211) and second side portions (212);

a first abutting piece (220) movably connected to the first side portion (211); and

a second abutting piece (230) movably connected to the second side portion (212);

when the first abutting piece (220) and the second abutting piece (230) are far away from each other, the first abutting piece (220) and the second abutting piece (230) can abut against two side walls of a roadway respectively to limit the position of the main shovel plate (210) relative to the bottom plate of the roadway.

9. The heading machine according to claim 8, wherein the first abutting member (220) is telescopically connected to the first side portion (211) in a straight line, and the second abutting member (230) is telescopically connected to the second side portion (212) in a straight line.

10. The heading machine of claim 8, wherein the blade mechanism (200) further comprises:

a first guide assembly (240) for guiding movement of the first abutting member (220) relative to the first side portion (211);

a second guide assembly (250) for guiding movement of the second abutting member (230) relative to the second side portion (212);

the first driving assembly (261) is arranged on the main shovel plate (210) and used for driving the first abutting piece (220) to move; and

and the second driving assembly (262) is arranged on the main shovel plate (210) and is used for driving the second abutting part (230) to move.

11. The heading machine according to claim 7, wherein the vehicle body (310) includes a body portion (313), a slide-fit portion (311), and a drive mechanism (312);

the sliding fit part (311) is movably connected to the body part (313) along the length direction of the roadway; the moving seat (321) of the cutting head assembly (320) is movably connected with the sliding fit part (311);

the driving mechanism (312) is arranged on the body part (313) and used for driving the sliding fit part (311) to move.