CN218953303U - Cantilever type development machine cutting large arm and development machine - Google Patents

Abstract

The utility model relates to the technical field of heading machines, in particular to a cantilever type heading machine cutting large arm and a heading machine. The cutting large arm of the cantilever type heading machine comprises a cutting mechanism, a rotating mechanism and a sliding mechanism, wherein the cutting mechanism is connected with one end of the rotating mechanism, the other end of the rotating mechanism is connected with the sliding mechanism, and the sliding mechanism can be fixed on a frame of the cantilever type heading machine; the sliding mechanism drives the cutting mechanism and the slewing mechanism to synchronously move, so that the telescopic action of the cantilever type heading machine cutting large arm is realized. The cantilever type heading machine cutting large arm adopts the sliding mechanism to drive the whole cutting large arm to move, so that the cantilever type heading machine can realize the advancing or retreating of the cutting large arm according to the working requirement, and the working such as mining and material collecting is not required to be completed by frequent machine moving, thereby reducing the phenomenon that the cantilever type heading machine is slipped or damaged by a crawler belt in a coal mine tunnel, and improving the working efficiency.

Description

Cantilever type development machine cutting large arm and development machine

Technical Field

The utility model relates to the technical field of heading machines, in particular to a cantilever type heading machine cutting large arm and a heading machine.

Background

The cantilever type heading machine is widely applied to mining operations of coal mine tunnels, mountain tunnels and the like, and mainly comprises a cutting mechanism, a travelling mechanism, a transferring mechanism and other main mechanisms. The boom miner requires frequent forward and reverse movements during mining and loading, which severely reduces the mining efficiency of the miner and would compromise the life of the miner chassis mechanism. In order to avoid the situations, a corresponding telescopic device is usually designed on a cutting mechanism of the heading machine, so that the exploitation rate of a coal mine tunnel is greatly improved. In the past, the cutting and telescoping modes of the cantilever type heading machine mainly exist in two modes. Firstly, arranging a telescopic device on a cantilever section between a cutting motor and a cutting head; the other is to connect the cutting motor, the cutting speed reducer and the cutting head into a whole, and a telescopic device is arranged between the whole part and the cutting large arm structural member. In either case, the cutting mechanism is telescopic along the axial direction of the cantilever.

When the telescopic device is arranged in the cutting part or the motor box body, the cutting head and the cutting speed reducer are driven by the telescopic oil cylinder to integrally move, the layout leads to the complex structure of the large cutting arm, and the working difficulty in maintenance and inspection is increased. In addition, when half coal rock, rock operating mode are met, vibrations are violent when the cutting part cuts, can influence the stability that telescoping device and main part are connected to influence telescoping device's life. In addition, in most of the existing heading machines, a cutting head, a cutting speed reducer and a cutting motor are connected into a whole, and a telescopic device is arranged between the whole part and a cutting boom structural member. However, the telescopic range of the telescopic devices is relatively low, which also limits the exploitation efficiency of the heading machine, thereby influencing the construction period and the construction progress.

Disclosure of Invention

First, the technical problem to be solved

In view of the defects and shortcomings of the prior art, the utility model provides a large cutting arm of a cantilever type heading machine and the heading machine, which solve the technical problems of complex structure and poor stability of the large cutting arm of the existing cantilever type heading machine.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

in a first aspect, an embodiment of the present utility model provides a boom cutting arm of a boom excavator, including a cutting mechanism, a swing mechanism and a sliding mechanism, where the cutting mechanism is connected with one end of the swing mechanism, the other end of the swing mechanism is connected with the sliding mechanism, and the sliding mechanism can be fixed on a frame of the boom excavator; the sliding mechanism drives the cutting mechanism and the slewing mechanism to synchronously move, so that the telescopic action of the cantilever type heading machine cutting large arm is realized.

Further, the cutting mechanism comprises a cutting head, a cantilever section, a cutting speed reducer, a cutting motor, a large arm support and a lifting driver, wherein the cutting head is connected with one end of the cantilever section, the other end of the cantilever section is connected with the cutting speed reducer, the cutting speed reducer is connected with the cutting motor arranged in the large arm support, and the large arm support is also connected with the rotating mechanism; and two ends of the lifting driver are respectively connected with the large arm support and the slewing mechanism.

Further, the rotary mechanism comprises a rotary frame, a rotary bearing and a rotary driver, one end of the rotary frame is connected with the cutting mechanism, the other end of the rotary frame is fixed with an outer ring of the rotary bearing, and an inner ring of the rotary bearing is fixed with the sliding mechanism; the telescopic end of the rotary driver is connected with the outer ring of the rotary bearing, and the fixed end of the rotary driver is connected with the sliding mechanism.

Further, the number of the rotary drivers is two, the telescopic ends of the two rotary drivers are respectively and rotatably connected with two sides of the outer ring of the rotary bearing, and the fixed ends of the two rotary drivers are respectively and rotatably connected with the sliding mechanism.

Further, the revolving frame is of a Y-shaped structure, and the end parts of two branches of the Y-shaped structure of the revolving frame are respectively connected with the cutting mechanism in a rotating way.

Further, the rotary mechanism further comprises a rotary table, the bottom of the rotary table is fixed on the sliding mechanism, and the top of the rotary table is connected with the rotary bearing.

Further, the sliding mechanism comprises a sliding frame, a guide column and a telescopic driver, the top of the sliding frame is connected with the slewing mechanism, and the bottom of the sliding frame is in sliding connection with the guide column fixed on the frame of the cantilever tunneling machine; the telescopic end of the telescopic driver is connected with the sliding frame, and the fixed end of the telescopic driver is connected with the frame of the cantilever tunneling machine.

Further, a sleeve is arranged at the bottom of the sliding frame, and the sleeve is sleeved outside the guide post, so that the sliding frame slides along the guide post.

Further, the number of the guide posts is two, and the two guide posts are respectively connected with the bottoms of the two side walls of the sliding frame in a sliding manner.

In a second aspect, an embodiment of the present utility model provides a heading machine, including the boom-type heading machine cutting boom and a frame, where the sliding mechanism is fixed on the frame.

(III) beneficial effects

The beneficial effects of the utility model are as follows: the utility model provides a cantilever type heading machine and a cutting large arm thereof. The cantilever type heading machine is driven to integrally move by the large cutting arm through the sliding mechanism, so that the cantilever type heading machine can realize the advancing or retreating of the large cutting arm according to the working requirement, and the working such as mining and material collecting is not required to be completed through frequent machine moving, thereby reducing the phenomenon that the cantilever type heading machine is slipped or damaged by a crawler belt in a coal mine tunnel, and improving the working efficiency.

The telescopic movement of the cutting large arm is realized by adopting the sliding mechanism, compared with the existing cantilever telescopic mode, the telescopic movement of the cutting large arm is higher in reliability, can be applied to half coal rock and rock roadways, and solves the problem that the existing telescopic mechanism of the cantilever heading machine is high in use failure rate in the rock roadways.

Drawings

FIG. 1 is a schematic view of a boom cutting arm of a boom-type heading machine of the present utility model;

fig. 2 is a schematic structural view of the swing mechanism and the sliding mechanism of the present utility model.

[ reference numerals description ]

1. A cutting head; 2. a cantilever section; 3. cutting speed reducer; 4. a cutting motor; 5. a large arm support; 6. a lifting drive; 7. a revolving frame; 8. a slewing bearing; 9. a slewing drive; 10. a sliding frame; 11. a guide post; 12. a telescopic drive; 13. and (5) a rotary table.

Detailed Description

In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be 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 scope of the utility model to those skilled in the art. Wherein references herein to "upper", "lower", etc. are made to the orientation of fig. 1.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a cutting boom of a cantilever tunneling machine according to the present utility model; fig. 2 is a schematic structural diagram of a swing mechanism and a sliding mechanism provided by the utility model.

In a first specific embodiment, the present utility model provides a boom cutter boom for a boom cutter. The cantilever type heading machine cutting large arm can realize the expansion and contraction of the cutting in the running direction of the heading machine, can realize the integral expansion and contraction of the cutting large arm, can effectively improve the cutting range of the cutting head, and further improves the working efficiency of the heading machine.

Referring to fig. 1 and 2, the boom cutter boom of the boom cutter includes a cutting mechanism, a swing mechanism, and a slip mechanism. The cutting mechanism is connected with one end of the rotating mechanism, the other end of the rotating mechanism is connected with the sliding mechanism, and the sliding mechanism can be fixed on the frame of the cantilever tunneling machine. According to the utility model, the sliding mechanism drives the cutting mechanism and the slewing mechanism to synchronously move, so that the telescopic action of the cantilever type heading machine cutting large arm is realized.

According to the utility model, the sliding mechanism is adopted to drive the cutting mechanism and the rotating mechanism to synchronously move, so that the cantilever type heading machine can realize the forward or backward movement of the cutting large arm according to the working requirement, and the working such as mining and material collection can be completed without frequent movement of the machine, thereby reducing the phenomenon that the cantilever type heading machine is slipped or damaged on a track of a coal mine tunnel, and improving the working efficiency. And the accurate excavation and modification of the tunnel or tunnel section are facilitated.

The following describes the specific structure of the cutting mechanism:

referring to fig. 1, the cutting mechanism includes a cutting head 1, a boom section 2, a cutting speed reducer 3, a cutting motor 4, a large boom 5, and a lifting drive 6. The cutting head 1 is connected with one end of the cantilever section 2, the other end of the cantilever section 2 is connected with the cutting speed reducer 3, the cutting speed reducer 3 is connected with the cutting motor 4 arranged in the large arm support 5, and the large arm support 5 is also connected with the slewing mechanism. Two ends of the lifting driver 6 are respectively connected with the large arm support 5 and the slewing mechanism.

Specifically, the cutting head 1, the cantilever section 2, the cutting speed reducer 3 and the cutting motor 4 are sequentially connected into an integral structure. The cutting motor 4 is fixed in the large arm support 5, and the large arm support 5 is hinged with a revolving frame 7 of the revolving mechanism. The two ends of the lifting driver 6 are respectively hinged with the large arm support 5 and a revolving frame 7 of the revolving mechanism, and the pitching angles of the large arm support 5 and the cutting head 1 are adjusted through the expansion and contraction of the lifting driver 6. The lifting driver 6 in this embodiment may be an oil cylinder, the telescopic end of which is connected to the large boom 5 through a pin, and the fixed end of which is connected to the turret 7 through a pin.

The following describes the specific structure of the swing mechanism:

referring to fig. 1 and 2, the swing mechanism includes a swing frame 7, a swing bearing 8, and a swing driver 9. One end of the revolving frame 7 is hinged with the large arm support 5 and the lifting driver 6 of the cutting mechanism, the other end of the revolving frame 7 is fixed with the outer ring of the revolving bearing 8 through bolts, and the inner ring of the revolving bearing 8 is fixed with the sliding frame 10 of the sliding mechanism. The telescopic end of the rotary driver 9 is hinged with the outer ring of the rotary bearing 8, and the fixed end of the rotary driver 9 is hinged with a sliding frame 10 of the sliding mechanism. The slewing drive 9 in this embodiment may be an oil cylinder. The outer ring of the rotary bearing 8 is driven to rotate relative to the inner ring through the expansion and contraction of the rotary driver 9, so that the rotary frame 7 and the cutting mechanism connected with the rotary frame 7 are driven to rotate together, and the rotation angle of the cutting mechanism is adjusted.

In some embodiments, the number of the rotary drivers 9 is two, the telescopic ends of the two rotary drivers 9 are respectively hinged with two sides of the outer ring of the rotary bearing 8, and the fixed ends of the two rotary drivers 9 are respectively hinged with the sliding frame 10 of the sliding mechanism. In the rotating process of the slewing bearing 8, one slewing driver 9 plays a pushing role, the other slewing driver 9 plays a pulling role, the whole cutting mechanism can be more stable in the rotating process, and the stability of the cantilever type heading machine for cutting a large arm is improved.

In some embodiments, the number of the turn frames 7 is two, and two turn frames 7 are provided on both sides of the turn bearing 8. The revolving frame 7 is of a Y-shaped structure, pin shaft holes are formed in the end portions of two branches of the Y-shaped structure of the revolving frame 7, and the two pin shaft holes are used for being connected with the large arm support 5 and the lifting driver 6 of the cutting mechanism through pin shafts. The turret 7 may serve a better connection.

In some embodiments, the turntable mechanism further comprises a turntable 13. The revolving platform 13 is fixed on the top of the sliding frame 10 of the sliding mechanism through bolts, and the top of the revolving platform 13 is fixedly connected with the inner ring of the revolving bearing 8. The rotary table 13 is arranged to facilitate the installation, disassembly and maintenance of the rotary mechanism.

The following describes the specific structure of the slip mechanism:

referring to fig. 1 and 2, the sliding mechanism includes a sliding frame 10, a guide post 11, and a telescopic driver 12. The top of the sliding frame 10 is respectively connected with a slewing driver 9 of a slewing mechanism and an inner ring or a turntable 13 of the slewing bearing 8, and the bottom of the sliding frame 10 is slidably connected with the guide post 11, so that the sliding frame 10 can slide on the guide post 11. The guide post 11 can be fixed on the frame of the cantilever type heading machine, and two ends of the guide post 11 are fixed on the frame through bolts. The telescopic end of the telescopic drive 12 is hinged to the skid 10, and the fixed end of the telescopic drive 12 can be hinged to the frame of the cantilever excavator. The telescopic driver 12 in this embodiment may be an oil cylinder, the stroke range of which is 0-1000mm, the telescopic end of which is connected with the lower part of the sliding frame 10 through a pin, and the fixed end of which is fixed on the frame through a pin. The sliding frame 10 is used for supporting a cutting mechanism and a slewing mechanism, and the sliding frame 10 is driven to slide along the guide post 11 through the telescopic driver 12 to drive the cutting mechanism and the slewing mechanism to move, so that telescopic movement of a large arm cut by the cantilever type heading machine is realized.

The utility model realizes the extension and retraction of the large cutting arm of the cantilever type heading machine through the sliding mechanism, the extension and retraction amount can be changed within the range of 0-1000mm, and the utility model has the advantages of large extension and retraction stroke, simple structure, high mechanical strength and high working reliability. The cutting range and the mining efficiency of the cantilever type heading machine are effectively improved.

In some embodiments, the bottom of the sliding frame 10 is provided with a sleeve, which is sleeved on the outside of the guide post 11, so that the sliding frame 10 slides along the guide post 11. The structure can enable the sliding frame 10 to slide more stably, and further realize stable extension and retraction of the large cutting arm of the cantilever type heading machine. Of course, the sliding frame 10 of the present utility model is not limited to the above structure, and the bottom section of the sliding frame 10 may be square or arc, which may be inserted into a correspondingly shaped chute formed above the guide post 11, and the sliding frame 10 may also slide along the guide post 11.

In some embodiments, the number of the guide posts 11 is two, and the two guide posts 11 are slidably connected to bottoms of both sidewalls of the slider 10, respectively. The structure can enable the sliding frame 10 to slide more stably, and further realize stable extension and retraction of the large cutting arm of the cantilever type heading machine. Of course, the utility model may also be provided with one or more guide posts 11.

The utility model adopts the telescopic driver 12 and the sliding frame 10 to realize the front and back sliding of the cutting mechanism, and realizes the sliding of the sliding frame 10 on the guide post 11 through the telescopic action of the telescopic driver 12, thereby realizing the telescopic function of the cantilever type heading machine for cutting the large arm.

Compared with the existing cantilever telescopic mode, the utility model has high reliability, can be applied to half coal rocks and rock roadways, and solves the problem of high failure rate of the original telescopic mechanism of the cantilever tunneling machine in the rock roadways.

In a second specific embodiment, the present utility model provides a heading machine. The tunneling machine comprises the cantilever tunneling machine cutting large arm and the frame in the embodiment, and the sliding mechanism is fixed on the frame. It should be noted that, the structure of the boom cutting arm of the boom-type heading machine is described in detail in the above embodiments, and will not be described here again.

In the description of the present utility model, it is to be understood that the term "plurality" means two or more, unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made by those skilled in the art within the scope of the utility model, which also falls within the scope of the appended claims.

Claims (7)

1. The utility model provides a cantilever type entry driving machine cuts big arm which characterized in that: the cutting mechanism is connected with one end of the rotary mechanism, the other end of the rotary mechanism is connected with the sliding mechanism, and the sliding mechanism can be fixed on a frame of the cantilever tunneling machine; the sliding mechanism drives the cutting mechanism and the rotating mechanism to synchronously move, so that the telescopic action of the cantilever type heading machine cutting large arm is realized;

the sliding mechanism comprises a sliding frame (10), a guide column (11) and a telescopic driver (12), wherein the top of the sliding frame (10) is connected with the slewing mechanism, and the bottom of the sliding frame (10) is in sliding connection with the guide column (11) fixed on the frame of the cantilever tunneling machine; the telescopic end of the telescopic driver (12) is connected with the sliding frame (10), and the fixed end of the telescopic driver (12) is connected with the frame of the cantilever tunneling machine; both ends of the guide post (11) are fixed on a frame of the cantilever type heading machine;

the bottom of the sliding frame (10) is provided with a sleeve, and the sleeve is sleeved outside the guide post (11) so that the sliding frame (10) slides along the guide post (11);

the number of the guide posts (11) is two, and the two guide posts (11) are respectively connected with the bottoms of the two side walls of the sliding frame (10) in a sliding manner;

the stroke range of the telescopic driver (12) is 0-1000mm.

2. A boom of a boom-cutter as claimed in claim 1, wherein: the cutting mechanism comprises a cutting head (1), a cantilever section (2), a cutting speed reducer (3), a cutting motor (4), a large arm support (5) and a lifting driver (6), wherein the cutting head (1) is connected with one end of the cantilever section (2), the other end of the cantilever section (2) is connected with the cutting speed reducer (3), the cutting speed reducer (3) is connected with the cutting motor (4) arranged in the large arm support (5), and the large arm support (5) is also connected with the slewing mechanism; and two ends of the lifting driver (6) are respectively connected with the large arm support (5) and the slewing mechanism.

3. A boom of a boom-cutter as claimed in claim 1, wherein: the rotary mechanism comprises a rotary frame (7), a rotary bearing (8) and a rotary driver (9), one end of the rotary frame (7) is connected with the cutting mechanism, the other end of the rotary frame (7) is fixed with an outer ring of the rotary bearing (8), and an inner ring of the rotary bearing (8) is fixed with the sliding mechanism; the telescopic end of the rotary driver (9) is connected with the outer ring of the rotary bearing (8), and the fixed end of the rotary driver (9) is connected with the sliding mechanism.

4. A boom of a boom cutter according to claim 3, wherein: the number of the rotary drivers (9) is two, the telescopic ends of the two rotary drivers (9) are respectively and rotatably connected with two sides of the outer ring of the rotary bearing (8), and the fixed ends of the two rotary drivers (9) are respectively and rotatably connected with the sliding mechanism.

5. A boom of a boom cutter according to claim 3, wherein: the rotary frame (7) is of a Y-shaped structure, and the end parts of two branches of the Y-shaped structure of the rotary frame (7) are respectively connected with the cutting mechanism in a rotating way.

6. A boom of a boom cutter according to claim 3, wherein: the rotary mechanism further comprises a rotary table (13), the bottom of the rotary table (13) is fixed on the sliding mechanism, and the top of the rotary table (13) is connected with the rotary bearing (8).

7. A heading machine, characterized in that: a boom including a boom of a boom cutter according to any of claims 1-6 and a housing, said slip mechanism being secured to said housing.

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