CN210134928U

CN210134928U - Cutting part structure of coal mining machine

Info

Publication number: CN210134928U
Application number: CN201920973820.7U
Authority: CN
Inventors: 邓海宾
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-03-10
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a coal-winning machine cutting units structure, including the cylinder, the reduction gear subassembly, the reduction gear chamber, the power input shaft, pick and shower nozzle, the reduction gear chamber sets up in the cylinder, form the cooling chamber between cylinder and the reduction gear chamber, the reduction gear subassembly sets up in the reduction gear intracavity, power input shaft cavity and one end are equipped with the opening, the other end of power input shaft is connected with the transmission of reduction gear subassembly behind cylinder and the reduction gear chamber in proper order, the lateral wall of power input shaft part between cylinder and reduction gear chamber is opened has the liquid hole of crossing of intercommunication power input shaft inner chamber and cooling chamber, the output of reduction gear subassembly is worn out behind the reduction gear chamber and is connected with cylinder end transmission, pick and shower nozzle all set up in the cylinder surface, the input and the cooling chamber intercommunication of shower nozzle, the prong of the orientation pick of shower nozzle. The utility model provides a coal-winning machine cutting units structure through the cooling water all the way, can cool off reduction gear subassembly and pick simultaneously, improves its life.

Description

Cutting part structure of coal mining machine

Technical Field

The utility model relates to a coal mining field especially relates to coal-winning machine cutting units structure.

Background

The cutting part is the core part of coal cutter, also is the main operating structure of coal cutter simultaneously, and the cutting part need be transmitted the pick after reducing the power of actuating mechanism output through the reduction gear subassembly, and the reduction gear subassembly of cutting part can produce a large amount of heat at the transmission in-process, can influence the performance and the life of reduction gear subassembly, and the long-time coal seam of cutting of pick, also can produce a large amount of heat, influences the life of pick.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a coal-winning machine cutting units structure through the cooling water all the way, can make the speed reduction gear subassembly cooling of cutting units, can cool off the pick again, can guarantee the performance of speed reduction gear subassembly, improves the life of cutting units speed reduction gear subassembly and pick.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses a cutting part structure of coal mining machine, which comprises a roller, a reduction gear assembly, a reduction gear cavity, a power input shaft, a cutting pick and a spray head, wherein the roller is hollow, the reduction gear cavity is arranged in the roller, the inner wall of the roller and the annular part of the reduction gear cavity form a cooling cavity, the reduction gear assembly is arranged in the reduction gear cavity and is fixedly connected with the inner wall of the reduction gear cavity, one end of the hollow power input shaft is provided with an opening communicated with a water supply device and the inner cavity of the power input shaft, the other end of the power input shaft sequentially passes through the end surface of the roller and the reduction gear cavity and is in transmission connection with the input end of the reduction gear assembly, the power input shaft is respectively in dynamic sealing with the end surface of the roller and the reduction gear cavity, and is coaxial with the roller, the side wall of the part of the power input shaft between the roller and the reduction gear cavity is provided with a liquid passing hole communicated with the inner cavity of the power input shaft and the cooling cavity, the output end of the reduction gear assembly penetrates out of the reduction gear cavity and then is in transmission connection with the end part of the roller far away from the power input shaft, the cutting teeth and the spray head are arranged on the surface of the roller, the input end of the spray head is communicated with the cooling cavity, and the output end of the spray head faces towards the tooth tips of the cutting teeth.

The utility model has the advantages that: the driving device drives the power input shaft to rotate, the power input shaft inputs power to the reduction gear assembly, the power is output to the drum after being reduced by the reduction gear assembly, the drum rotates, and the cutting teeth on the drum cut the coal bed; at the in-process of cutting, water supply equipment supplies the cooling water to the inner chamber of power input shaft, and the cooling water makes the reduction gear subassembly cooling of reduction gear intracavity through crossing the cooling intracavity of liquid hole arrival cylinder inner wall and reduction gear chamber annular space part, and water supply equipment continuously supplies water, and the cooling water of cooling intracavity passes through the shower nozzle blowout, cools off the pick, still can the dust fall simultaneously. Whole mechanism accessible cooling water all the way cools off reduction gear assembly and pick simultaneously, guarantees reduction gear assembly's performance, improves the life of cutting units reduction gear assembly and pick.

Furthermore, a roller guide groove is formed in the surface of the roller, two ends of the roller guide groove penetrate through the end portion of the roller, the roller guide groove is in a twill shape on the surface of the roller, the cutting tooth is arranged behind the roller guide groove adjacent to the cutting tooth along the rotation direction of the roller, and the spray head is arranged behind the cutting tooth adjacent to the cutting tooth along the rotation direction of the roller.

The beneficial effect of adopting the further scheme is that: dust that the pick cut the coal seam and shower nozzle spun water contact can produce a large amount of mud, probably cause the shower nozzle to block up, set up the cylinder guiding gutter, the pick is at the rear along cylinder direction of rotation rather than adjacent cylinder guiding gutter, the dust that the cutting produced directly falls into the guiding gutter of below after contacting with water, the mud is discharged along the cylinder guiding gutter under cylinder pivoted centrifugal force, the shower nozzle can prevent that the mud from blockking up the shower nozzle at the pick rather than adjacent along the rear of cylinder direction of rotation.

Furthermore, a cutting pick flow guide groove is formed in the surface of the cutting pick, the cutting pick flow guide groove is spirally distributed from the tooth tip of the cutting pick to the tooth root of the cutting pick, and the cutting pick flow guide groove is communicated with the adjacent roller flow guide groove at the tooth root end of the cutting pick.

The beneficial effect of adopting the further scheme is that: can arrange the cylinder guiding gutter along the pick guiding gutter with the adnexed mud on pick surface in, rethread cylinder guiding gutter discharges, prevents that the pick surface from piling up a large amount of mud back, blockking up the shower nozzle.

Further, the picks are inclined toward the direction of rotation of the drum from the tooth root to the tooth tip.

The beneficial effect of adopting the further scheme is that: the cutting pick can cut the coal bed conveniently.

Furthermore, the liquid passing holes are multiple and are uniformly distributed along the circumferential direction of the power input shaft.

The beneficial effect of adopting the further scheme is that: water may be continuously supplied to the cooling cavity during rotation of the power input gear.

Furthermore, the end part of the power input shaft in the speed reduction gear cavity is fixedly connected with an input gear, and the power input shaft is in transmission connection with the speed reduction gear assembly through the input gear.

The beneficial effect of adopting the further scheme is that: the connection and the power transmission are convenient.

Furthermore, the connecting end of the roller and the reduction gear assembly is fixedly connected with an output gear ring, and the roller is in transmission connection with the output end of the reduction gear assembly through the output gear ring.

Furthermore, the shell of the speed reduction gear cavity is made of a heat conducting material.

The beneficial effect of adopting the further scheme is that: the shell has good heat transfer effect, heat generated by the reduction gear assembly is conveniently transferred to the cooling cavity to enable cooling water to absorb heat, and the cooling effect is good.

Furthermore, the cutting teeth are multiple and are uniformly distributed on the surface of the roller, the number of the spray heads is the same as that of the cutting teeth, and the spray heads are distributed in one-to-one correspondence with the cutting teeth.

The beneficial effect of adopting the further scheme is that: the cutting effect is good, each cutting tooth of the cutting part can be cooled, and dust generated at each position of cutting can be reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention taken along a vertical bisecting plane passing through the axis of the drum;

FIG. 2 is a view in the direction of the end face of the drum connected to the output of the reduction gear assembly;

FIG. 3 is a schematic view of the surface of the drum;

FIG. 4 is a schematic view of a power input shaft;

in the figure: 1-roller, 11-roller diversion groove, 12-output gear ring, 2-reduction gear assembly, 3-reduction gear cavity, 4-cutting pick, 41-cutting pick diversion groove, 5-cooling cavity, 6-power input shaft, 61-liquid passing hole, 62-input gear and 7-spray head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.

As shown in figures 1-4, the utility model discloses a cutting part structure of coal mining machine, which comprises a roller 1, a reduction gear assembly 2, a reduction gear cavity 3, a power input shaft 6, a cutting pick 4 and a spray head 7, wherein the roller 1 is hollow, the shell of the reduction gear cavity 3 is made of heat conducting material, the surface of the shell of the reduction gear cavity 3 is processed by corrosion prevention and rust prevention, the reduction gear cavity 3 is arranged in the roller 1, the inner wall of the roller 1 and the annular part of the reduction gear cavity 3 form a cooling cavity 5, the reduction gear assembly 2 is arranged in the reduction gear cavity 3 and is fixedly connected with the inner wall of the reduction gear cavity 3, one hollow end of the power input shaft 6 is provided with an opening communicated with a water supply device and the inner cavity of the power input shaft 6, the water supply device is filled with cooling water into the inner cavity of the power input shaft 6 and the cooling cavity 5, the other end of the power input shaft 6 is connected with the input, the end part of the power input shaft 6 in the reduction gear cavity 3 is fixedly connected with an input gear 62, the power input shaft 6 is in transmission connection with a gear connected with the transmission connection input end of the reduction gear assembly 2 through the input gear 62, the power input shaft 6 is respectively in dynamic seal with the end surface of the roller 1 and the reduction gear cavity 3, various existing shaft seal technologies can be adopted, the power input shaft 6 is coaxial with the roller 1, the side wall of the part of the power input shaft 6 between the roller 1 and the reduction gear cavity 3 is provided with a plurality of liquid passing holes 61 for communicating the inner cavity of the power input shaft 6 with the cooling cavity 5, the liquid passing holes 61 are uniformly distributed along the circumferential direction of the power input shaft 6, the output end of the reduction gear assembly 2 penetrates through the reduction gear cavity 3 and is in transmission connection with the end part of the roller 1 far away from the power input shaft 6, the connecting end of the roller 1 and the reduction gear assembly 2 is fixedly, output ring gear 12 is coaxial with cylinder 1, output ring gear 12 is connected with the gear drive of 2 outputs of reduction gear assembly, output ring gear 12 and reduction gear assembly 2's output shaft seal, the casing in reduction gear chamber 3 is except that the mouth that power input shaft 6 penetrated and reduction gear assembly 2's output were worn out, other parts are sealed, pick 4 and shower nozzle 7 all set up in cylinder 1 surface, the input and the 5 intercommunication in cooling chamber of shower nozzle 7, the tip of the output of shower nozzle 7 towards pick 4 can be to the tip direction water spray of pick 4, pick 4 inclines towards the direction of rotation of cylinder 1 from the tooth root to the tip, shower nozzle 7 also inclines along with pick 4 direction, pick 4 has a plurality ofly, a plurality of 4 evenly distributed in the surface of

cylinder

1, 7 figure of shower nozzle are the same with 4 figures of pick, shower nozzle 7 distributes with 4 one-to-ones that pick 4.

The surface of the roller 1 is provided with a roller guide groove 11, the two ends of the roller guide groove 11 all run through the end part of the roller 1, the roller guide groove 11 has a plurality of grooves, the roller guide groove 11 is distributed on the surface of the roller 1 at equal intervals in a twill shape, the cutting teeth 4 are arranged at the rear of the roller guide groove 11 adjacent to the cutting teeth, and the spray head 7 is arranged at the rear of the cutting teeth 4 adjacent to the cutting teeth along the rotation direction of the roller 1.

The surface of the cutting pick 4 is provided with a cutting pick guide groove 41, the cutting pick guide groove 41 is spirally distributed from the tooth tip of the cutting pick 4 to the tooth root of the cutting pick 4, and the cutting pick guide groove 41 is communicated with the adjacent roller guide groove 11 at the tooth root end of the cutting pick 4.

The power input shaft 6 is connected with driving equipment, if driving motor, transmits the power that driving motor exported to reduction gear assembly 2, exports to the cylinder 1 after reducing gear assembly 2 slows down, and cylinder 1 rotates and makes pick 4 cut the coal seam.

When cutting the coal seam, the opening that water supply installation intercommunication power input shaft 6 is to the 6 inner chambers of power input shaft, cooling chamber 5 and shower nozzle 7 last cooling water, the cooling water reachs cooling chamber 5 behind the 6 inner chambers of power input shaft, take away the heat that reduction gear subassembly 2 produced, spout through shower nozzle 7, shower nozzle 7 spun water cooling pick 4, adsorb the dust that the coal seam of cutting produced simultaneously, the dust falls down with the water combination synthetic mud, in the cylinder guiding gutter 11 on the surface of the cylinder 1 of the mud well pick guiding gutter 41 runner cylinder 1 on pick 4 surface, under cylinder 1 pivoted centrifugal force, the mud on cylinder 1 surface passes through cylinder guiding gutter 11 and flows to cylinder 1 tip, and discharge from cylinder 1 tip, avoid mud to block up shower nozzle 7 behind pick 4.

Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.

Claims

1. The utility model provides a coal-winning machine cutting units structure which characterized in that: comprises a roller (1), a reduction gear assembly (2), a reduction gear cavity (3), a power input shaft (6), picks (4) and a spray head (7), wherein the roller (1) is hollow, the reduction gear cavity (3) is arranged in the roller (1), the inner wall of the roller (1) and the annular part of the reduction gear cavity (3) form a cooling cavity (5), the reduction gear assembly (2) is arranged in the reduction gear cavity (3) and fixedly connected with the inner wall of the reduction gear cavity (3), an opening for communicating water supply equipment with the inner cavity of the power input shaft (6) is arranged at one end of the hollow power input shaft (6), the other end of the power input shaft (6) sequentially passes through the end surface of the roller (1) and the rear part of the reduction gear cavity (3) to be in transmission connection with the input end of the reduction gear assembly (2), the power input shaft (6) is respectively and dynamically sealed with the end surface of the roller (1) and the reduction gear cavity (3), the power input shaft (6) is coaxial with the roller (1), the side wall of the part of the power input shaft (6) between the roller (1) and the reduction gear cavity (3) is provided with a liquid passing hole (61) for communicating the inner cavity of the power input shaft (6) and the cooling cavity (5), the output end of the reduction gear assembly (2) penetrates through the reduction gear cavity (3) and then is in transmission connection with the end part of the roller (1) far away from the power input shaft (6), the cutting picks (4) and the spray head (7) are arranged on the surface of the roller (1), the input end of the spray head (7) is communicated with the cooling cavity (5), and the output end of the spray head (7) faces to the tooth tip of the cutting tooth (4).

2. The shearer cutting part structure of claim 1, wherein: the drum guide groove (11) is formed in the surface of the drum (1), the two ends of the drum guide groove (11) penetrate through the end portion of the drum (1), the drum guide groove (11) is in a twill shape on the surface of the drum (1), the cutting pick (4) is adjacent to the cutting pick (4), the rear of the drum (1) rotating direction is followed by the drum guide groove (11), and the rear of the drum (1) rotating direction is followed by the cutting pick (4) which is adjacent to the cutting pick (7).

3. The shearer cutting part structure of claim 2, wherein: pick (4) surface is opened there is pick guiding gutter (41), pick guiding gutter (41) are the heliciform certainly the prong of pick (4) extremely the tooth root of pick (4) distributes, pick guiding gutter (41) are in the tooth root end intercommunication of pick (4) rather than adjacent cylinder guiding gutter (11).

4. The shearer cutter structure according to any one of claims 1 to 3, wherein: the cutting pick (4) is inclined from the tooth root to the tooth tip towards the direction of rotation of the drum (1).

5. The shearer cutter structure according to any one of claims 1 to 3, wherein: the liquid passing holes (61) are multiple, and the liquid passing holes (61) are uniformly distributed along the circumferential direction of the power input shaft (6).

6. The shearer cutter structure according to any one of claims 1 to 3, wherein: the end part of the power input shaft (6) in the reduction gear cavity (3) is fixedly connected with an input gear (62), and the power input shaft (6) is in transmission connection with the reduction gear assembly (2) through the input gear (62).

7. The shearer cutter structure according to any one of claims 1 to 3, wherein: the drum (1) and the connecting end of the reduction gear assembly (2) are fixedly connected with an output gear ring (12), and the drum (1) and the output end of the reduction gear assembly (2) are in transmission connection through the output gear ring (12).

8. The shearer cutter structure according to any one of claims 1 to 3, wherein: the shell of the speed reduction gear cavity (3) is made of heat conducting materials.

9. The shearer cutter structure according to any one of claims 1 to 3, wherein: pick (4) have a plurality ofly, it is a plurality of pick (4) evenly distributed in the surface of cylinder (1), shower nozzle (7) figure with pick (4) figure is the same, shower nozzle (7) with pick (4) one-to-one distributes.