CN211174099U - Rocker arm used on coal mining machine with ultra-large mining height and coal mining machine with ultra-large mining height - Google Patents
Rocker arm used on coal mining machine with ultra-large mining height and coal mining machine with ultra-large mining height Download PDFInfo
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- CN211174099U CN211174099U CN201922156287.8U CN201922156287U CN211174099U CN 211174099 U CN211174099 U CN 211174099U CN 201922156287 U CN201922156287 U CN 201922156287U CN 211174099 U CN211174099 U CN 211174099U
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Abstract
The utility model discloses a rocker arm used on a coal mining machine with super large mining height and a coal mining machine with super large mining height, which comprises a machine body connecting part, a roller mounting part and a middle connecting part; the machine body connecting part is provided with a first lubricating installation cavity, the middle connecting part is provided with a second lubricating installation cavity, and the roller installation part is provided with a third lubricating installation cavity; a first sealing spacer is arranged between the first lubricating mounting cavity and the second lubricating mounting cavity; and a second sealing spacer is arranged between the second lubricating mounting cavity and the third lubricating mounting cavity. The lubricating installation cavity of the rocker arm is divided into the first lubricating installation cavity, the second lubricating installation cavity and the third lubricating installation cavity which are mutually independent, so that the problem that oil is gathered at the lower end to generate heat in the working state of the rocker arm at a large elevation angle is avoided, and the reliable lubricating effect is ensured.
Description
Technical Field
The utility model relates to a coal mining equipment technical field especially relates to a rocking arm and super large mining height coal-winning machine that is used for super large mining height coal-winning machine.
Background
The rocker arm is a direct working mechanism for cutting a coal wall of a coal mining machine, has the largest specific gravity of installed power and is most complicated to bear load. The main difficulty is to solve the problem of lubricating and cooling of the rocker arm under the severe working conditions of large elevation angle and large impact to realize the high efficiency and reliability of the rocker arm.
In the prior art, the conventional lubricating and cooling mode is to increase the amount of injected lubricating oil, but increase the amount of injected lubricating oil inevitably causes the problem that the temperature of the upper part of the rocker arm is too high due to the gathering of oil at the lower end in the elevation angle state.
In view of this, it is necessary to provide a rocker arm and a shearer with an ultra-large mining height capable of performing effective lubrication and cooling.
SUMMERY OF THE UTILITY MODEL
The technical scheme of the utility model provides a rocker arm used on a coal mining machine with super large mining height, which comprises a machine body connecting part, a roller mounting part and an intermediate connecting part connected between the machine body connecting part and the roller mounting part;
the machine body connecting part is provided with a first lubricating installation cavity, the middle connecting part is provided with a second lubricating installation cavity, and the roller installation part is provided with a third lubricating installation cavity;
a first sealing spacer is arranged between the first lubricating mounting cavity and the second lubricating mounting cavity;
a second sealing spacer is arranged between the second lubricating mounting cavity and the third lubricating mounting cavity;
a power output wheel is arranged in the first lubricating installation cavity, a planetary gear train is arranged in the third lubricating installation cavity, and a transmission gear set is arranged in the second lubricating installation cavity;
the transmission gear set is connected between the power output wheel and the planetary gear train.
Further, a cooler is respectively arranged in the first lubricating installation cavity and the second lubricating installation cavity.
Further, a plurality of coolers are arranged in the first lubricating mounting cavity;
a first water pipe is connected between any two adjacent coolers;
the first water pipes which are sequentially connected together are annularly arranged in the first lubricating installation cavity.
Further, a plurality of the coolers are arranged in the second lubricating mounting cavity;
a first water pipe is connected between any two adjacent coolers;
the first water pipes which are sequentially connected together are annularly arranged in the second lubricating and mounting cavity.
Further, at least one cooler is arranged in the third lubricating installation cavity.
Further, the transmission gear set comprises at least two meshed transmission gears;
each transmission gear is installed in the second lubricating installation cavity through a gear shaft;
wherein each gear shaft is provided with a cooling water channel therein;
and each gear shaft is provided with a water inlet and a water outlet which are communicated with the cooling water channel, and the water inlets and the water outlets are provided with one-way control valves.
Further, the cooling water passage is U-shaped or waved in the gear shaft.
Further, the cooling water channels in any two adjacent gear shafts are also connected through a second water pipe;
the second water pipe is located in the second lubricating installation cavity.
Further, a return pipe is provided in one of the second water pipes.
The utility model discloses technical scheme still provides a super large mining height coal-winning machine, including aforementioned arbitrary technical scheme the rocking arm.
By adopting the technical scheme, the method has the following beneficial effects:
the utility model provides a rocking arm and super large mining height coal-winning machine divide into the lubricated installation cavity of mutually independent first lubricated installation cavity, the lubricated installation cavity of second and the lubricated installation cavity of third to the lubricated installation cavity of rocking arm, has avoided fluid to arouse the problem that generates heat in the lower extreme gathering when the big angle of elevation operating condition of rocking arm, has guaranteed reliable lubricated effect.
Drawings
Fig. 1 is a schematic structural diagram of a rocker arm provided in an embodiment of the present invention;
FIG. 2 is a schematic view of a first lubrication mounting cavity, a second lubrication mounting cavity, and a third lubrication mounting cavity disposed in a rocker arm;
FIG. 3 is a schematic view of a second lubricant mounting chamber with a cooler, a first water line and a second water line disposed therein;
FIG. 4 is a schematic view of a cooling water passage disposed in a gear shaft;
FIG. 5 is a schematic view of a plurality of first water connections arranged in a ring.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1-2, the embodiment of the present invention provides a rocker arm for use in a coal mining machine with an ultra-large mining height, which comprises a machine body connecting portion 1, a roller mounting portion 3, and an intermediate connecting portion 2 connected between the machine body connecting portion 1 and the roller mounting portion 3.
The fuselage connecting portion 1 has a first lubrication mounting cavity 10 therein, the intermediate connecting portion 2 has a second lubrication mounting cavity 20 therein, and the roller mounting portion 3 has a third lubrication mounting cavity 30 therein.
A first sealing spacer 3 is arranged between the first lubricating mounting cavity 10 and the second lubricating mounting cavity 20. A second packing spacer 4 is provided between the second lubricating mounting cavity 20 and the third lubricating mounting cavity 30.
A power take-off wheel 6 is disposed in the first lubricating mounting cavity 10, and a planetary gear train 8 is disposed in the third lubricating mounting cavity 30. A transmission gear set 7 is arranged in the second lubricating and mounting cavity 20, and the transmission gear set 7 is connected between the power output wheel 6 and the planetary gear train 8.
The utility model provides a rocking arm can be used for on the super large mining height coal-winning machine, and the mining height of super large mining height coal-winning machine is greater than 7m, can reach 8.8m
The rocker arm comprises a machine body connecting part 1, an intermediate connecting part 2 and a roller mounting part 3 which are connected in sequence. Fuselage connecting portion 1 is used for being connected with the pivot on the fuselage, is provided with driving motor in the fuselage, and the drive pivot rotates, and then drives fuselage connecting portion 1 and the swing of whole rocking arm. Or the machine body connecting part 1 is hinged with the machine body, a driving oil cylinder is arranged on the machine body, and a piston rod of the driving oil cylinder is hinged with the machine body connecting part 1 to drive the rocker arm to swing.
The first lubricating installation cavity 10 is arranged in the machine body connecting part 1, the driving motor 11 is installed in the machine body connecting part 1, and a motor shaft 12 of the driving motor extends into the first lubricating installation cavity 10. The first lubricating and mounting cavity 10 is provided with one or more power output wheels 6, wherein one power output wheel 6 is connected to a motor shaft 12 and is used for outputting the torque or power of a driving motor 11.
When using, it has lubricating liquid to fill in the first lubricated installation cavity 10, and first lubricated installation cavity 10 is connected with the lubricating oil cooling tube way on the fuselage, cools down the part in the first lubricated installation cavity 10 through lubricating oil.
The intermediate connection part 2 is connected between the body connection part 1 and the drum mounting part 3, and has a second lubrication mounting cavity 20. A first sealing spacer 3 is arranged between the second lubricating mounting cavity 20 and the first lubricating mounting cavity 10. A drive gear set 7 is provided in the second lubricating mounting chamber 20. An axle 61 of the power output wheel 6 passes through the first seal spacer 3, an output gear 62 is arranged on the axle 61, and the output gear 62 is positioned in the second lubrication installation cavity 20. The input gear or a gear 71 of the drive gear set 7 meshes with the output gear 62 to effect power transmission.
When the lubricating device is used, lubricating liquid is filled in the second lubricating mounting cavity 20, the second lubricating mounting cavity 20 is connected with a lubricating oil cooling pipeline on the machine body, and the parts in the second lubricating mounting cavity 20 are cooled through the lubricating oil.
Because the first sealing spacer 3 is arranged between the second lubricating installation cavity 20 and the first lubricating installation cavity 10, the wheel shaft 61 is sealed by the first sealing spacer 3, so that the lubricating oil between the second lubricating installation cavity 20 and the first lubricating installation cavity 10 can be lubricated independently without mixing. Lubricating oil in the second lubricating mounting cavity 20 cannot enter the first lubricating mounting cavity 10, and lubricating oil in the first lubricating mounting cavity 20 cannot enter the second lubricating mounting cavity 20.
The drum mounting section 3 is for mounting a cutting drum and has a third lubricating mounting cavity 30. A planetary gear train 8 is disposed within the third lubrication mounting chamber 30. A second packing spacer 4 is provided between the second lubricating mounting cavity 20 and the third lubricating mounting cavity 30. The output gear or a gear 71 of the transmission gear set 7 is connected with a sun gear in the planetary gear train 8 through a rotating shaft 73, so that power transmission is realized. The shaft 73 passes through the second packing 4.
The transmission gear set 7 is connected between the power output wheel 6 and the planetary gear train 8, so that the power of the driving motor 11 can be transmitted to the cutting drum through the power output wheel 6, the transmission gear set 7 and the planetary gear train 8 in sequence to drive the cutting drum to rotate for coal mining. The cutting drum is mounted on a planet carrier of the planetary gear train 8, and the planetary gear train 8 can play a role in speed reduction.
When the lubricating device is used, lubricating liquid is filled in the third lubricating installation cavity 30, the third lubricating installation cavity 30 is connected with a lubricating oil cooling pipeline on the machine body, and the parts in the third lubricating installation cavity 30 are cooled through lubricating oil.
Because the second sealing spacer 4 is arranged between the second lubricating installation cavity 20 and the third lubricating installation cavity 30, the rotating shaft 73 is sealed by the second sealing spacer 4, so that the lubricating oil between the second lubricating installation cavity 20 and the third lubricating installation cavity 30 can be lubricated independently without mixing. Lubricating oil in the second lubricating mounting cavity 20 cannot enter the third lubricating mounting cavity 30, and lubricating oil in the third lubricating mounting cavity 30 cannot enter the second lubricating mounting cavity 20.
When the rocker arm is lifted up or in a large elevation angle working state, lubricating oil in the first lubricating installation cavity, the second lubricating installation cavity and the third lubricating installation cavity cannot be mixed, so that the lubricating oil in the second lubricating installation cavity and the third lubricating installation cavity cannot be gathered in the first lubricating installation cavity, and cooling of parts in the cavities can be guaranteed.
Therefore, the utility model provides a rocking arm divide into the lubricated installation cavity of rocking arm mutually independent first lubricated installation cavity, the lubricated installation cavity of second and the lubricated installation cavity of third, has avoided the problem that fluid arouses to generate heat in the lower extreme gathering when the big angle of elevation operating condition of rocking arm, has guaranteed reliable lubricated effect.
Preferably, as shown in fig. 1-3 and 5, a cooler 9 is disposed in each of the first and second lubricating mounting cavities 10 and 20.
The cooler 9 is used for being connected with an external cooling water system or a cooling water system of a coal mining machine to form a circulating water path so as to exchange heat with lubricating oil in the first lubricating installation cavity 10 and the second lubricating installation cavity 20, and cooling of the lubricating oil is achieved so as to improve the cooling effect of internal parts.
Preferably, as shown in connection with fig. 5, a plurality of coolers 9 are provided in the first lubricating mounting chamber 10. A first water pipe 91 is connected between any adjacent two of the coolers 9.
A plurality of first water pipes 91 connected together in sequence are annularly arranged in the first lubricating installation cavity 10.
Many first water pipes 91 connect gradually and are the annular, can carry out heat exchange with inside lubricating oil in first lubricated installation cavity 10, realize the cooling of lubricating oil, cool down to internals better.
A water inlet may be provided in the cooler 9 and a return pipe 92 may be provided in one of the first water pipes 91, the return pipe 92 being connected to the cooling water system to form a water circuit.
The water returned by the return pipe 92 can be returned to the cooling water system for recycling.
Preferably, as shown in fig. 3 and 5 in combination, a plurality of coolers 9 are provided in the second lubricating mounting chamber 20. A first water pipe 91 is connected between any adjacent two of the coolers 9.
A plurality of first water pipes 91 connected together in sequence are annularly arranged in the second lubricating mounting cavity 20.
Many first water pipes 91 connect gradually and are the annular, can carry out heat exchange with inside lubricating oil in the lubricated installation cavity 20 of second, realize the cooling of lubricating oil, cool down to internals better.
A water inlet may be provided in the cooler 9 and a return pipe 92 may be provided in one of the first water pipes 91, the return pipe 92 being connected to the cooling water system to form a water circuit.
The water returned by the return pipe 92 can be returned to the cooling water system for recycling.
Preferably, at least one cooler 9 is arranged in the third lubricating mounting cavity 30 to exchange heat with the lubricating oil in the third lubricating mounting cavity 30, so as to cool the lubricating oil in the third lubricating mounting cavity 30 and improve the cooling effect. When the rocker arm is in a large elevation angle state, internal parts can be effectively cooled, and equipment is protected.
Preferably, as shown in fig. 1-4, the drive gear set 7 includes at least two meshing drive gears 71. Each of the transmission gears 71 is mounted in the second lubricating mounting cavity 20 through a gear shaft 72.
Wherein a cooling water passage 721 is provided in each gear shaft 72.
Each gear shaft 72 is provided with a water inlet 722 and a water outlet 723 which are communicated with the cooling water passage 721, and the water inlet 722 and the water outlet 723 are provided with one-way control valves 724.
The water inlet 722 is connected to an external cooling water system or a cooling water system of a coal mining machine, cold water is supplied into the cooling water passage 721, the cold water exchanges heat with lubricating oil in the second lubricating mounting cavity 20, and then the cold water is discharged or reflows through the water outlet 723, so that the cooling effect on the lubricating oil in the second lubricating mounting cavity 20 is further improved, and parts in the second lubricating mounting cavity 20 can be better protected.
A one-way control valve 724 in the water inlet 722 controls the water inlet switch to allow water to enter from the water inlet 722 only and not to allow water to exit. The one-way control valve 724 in the water outlet 723 controls a water outlet switch, only allows water to be discharged from the water outlet 723, and does not allow water to enter.
The water inlet 722 and the water outlet 723 may be connected to the respective systems through hoses.
The water returned from the water outlet 723 can be returned to the cooling water system for recycling.
The cooling water passage 721 and the cooler 9 may share one cooling water system, or may use different cooling water systems.
Preferably, as shown in fig. 4, the cooling water channel 721 is U-shaped or wave-shaped in the gear shaft 72, increasing the flow path, enlarging the heat exchange area with the lubricating oil in the second lubricating mounting cavity 20, and improving the cooling effect of the lubricating oil.
Preferably, as shown in fig. 3 to 4, the cooling water passages 721 in any adjacent two gear shafts 72 are also connected by the second water pipes 73. A second water line 73 is located within second lubricant mounting cavity 20.
The second water pipe 73 can communicate two adjacent cooling water channels 721, so that cold water entering from one cooling water channel 721 can enter the other cooling water channel 721 through the second water pipe 73, and can circulate in the second lubricating installation cavity 20 to exchange heat with lubricating oil in the second lubricating installation cavity 20, and the cooling effect of the lubricating oil is improved.
When in use, the water inlet 722 of one gear shaft 72 can be opened, the water outlet 723 of the other gear shaft 72 can be opened, and the rest of the water inlet 722 and the water outlet 723 are all closed, so that cold water circulation is realized.
In use, the water inlets 722 of all the gear shafts 72 can be opened, and the water outlets 723 of all the gear shafts 72 can be opened, so that a cold water circulation is realized.
Preferably, a return pipe is provided in one of the second water pipes 73, the return pipe being connected to the cooling water system to return the water.
In use, the water inlet 722 of one gear shaft 72 can be opened, and all the water outlets 723 are closed, so as to realize a cold water circulation, so that the heat-exchanged water flows back through the return pipe.
In use, the water inlets 722 of all the gear shafts 72 can be opened, and all the water outlets 723 can be closed, so that a cold water circulation is realized, and heat-exchanged water flows back through the return pipe.
With reference to fig. 1-5, an embodiment of the present invention provides a coal mining machine with an ultra-large mining height, including the rocker arm of any one of the foregoing embodiments.
In the application, a coal mining machine with the mining height of 3.5m-7m is called a large-mining-height coal mining machine, and a coal mining machine with the mining height of more than 7m is called an ultra-large-mining-height coal mining machine.
The mining height of the coal mining machine with the ultra-large mining height can be 8.8 meters, and the coal mining machine with the ultra-large mining height is provided.
The machine body connecting part 1 of the rocker arm is hinged on the machine body of the coal mining machine with the ultra-large mining height, and a driving oil cylinder or a piston rod on the machine body is hinged with the rocker arm to drive the rocker arm to swing. Or the machine body connecting part 1 of the rocker arm is arranged on the machine body of the coal mining machine with the ultra-large mining height through a rotating shaft, an output wheel of a driving motor on the machine body is connected with the rotating shaft, and the rotating shaft is driven to rotate so as to drive the rocker arm to swing.
The cutting drum is mounted on the drum mounting portion 3 of the rocker arm.
To sum up, the utility model provides a rocking arm and super large mining height coal-winning machine divide into the lubricated installation cavity of mutually independent first lubricated installation cavity, the lubricated installation cavity of second and the lubricated installation cavity of third to the lubricated installation cavity of rocking arm, has avoided fluid to arouse the problem that generates heat in the lower extreme gathering when the big angle of elevation operating condition of rocking arm, has guaranteed reliable lubricated effect.
According to the needs, the above technical schemes can be combined to achieve the best technical effect.
What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.
Claims (10)
1. A rocker arm used on a coal mining machine with an ultra-large mining height is characterized by comprising a machine body connecting part, a roller mounting part and an intermediate connecting part connected between the machine body connecting part and the roller mounting part;
the machine body connecting part is provided with a first lubricating installation cavity, the middle connecting part is provided with a second lubricating installation cavity, and the roller installation part is provided with a third lubricating installation cavity;
a first sealing spacer is arranged between the first lubricating mounting cavity and the second lubricating mounting cavity;
a second sealing spacer is arranged between the second lubricating mounting cavity and the third lubricating mounting cavity;
a power output wheel is arranged in the first lubricating installation cavity, a planetary gear train is arranged in the third lubricating installation cavity, and a transmission gear set is arranged in the second lubricating installation cavity;
the transmission gear set is connected between the power output wheel and the planetary gear train.
2. The rocker arm for a shearer loader with an oversized mining height as claimed in claim 1, wherein a cooler is arranged in each of the first lubricating mounting cavity and the second lubricating mounting cavity.
3. The ranging arm for use on ultra-large mining height coal mining machines of claim 2, wherein a plurality of the coolers are disposed within the first lubricating mounting chamber;
a first water pipe is connected between any two adjacent coolers;
the first water pipes which are sequentially connected together are annularly arranged in the first lubricating installation cavity.
4. The ranging arm for a shearer loader with an ultra large mining height as claimed in claim 2, wherein a plurality of coolers are arranged in the second lubricating mounting cavity;
a first water pipe is connected between any two adjacent coolers;
the first water pipes which are sequentially connected together are annularly arranged in the second lubricating and mounting cavity.
5. The ranging arm for use on ultra-large reach shearers of claim 2, wherein at least one of the coolers is disposed within the third lubrication mounting chamber.
6. The rocker arm for use on ultra-large mining height coal mining machines of any one of claims 1 to 5, wherein the drive gear set comprises at least two meshed drive gears;
each transmission gear is installed in the second lubricating installation cavity through a gear shaft;
wherein each gear shaft is provided with a cooling water channel therein;
and each gear shaft is provided with a water inlet and a water outlet which are communicated with the cooling water channel, and the water inlets and the water outlets are provided with one-way control valves.
7. The ranging arm for use on ultra-large mining height coal mining machines of claim 6, wherein the cooling water channel is U-shaped or wavy in the gear shaft.
8. The rocker arm for the ultra-large mining height coal mining machine as claimed in claim 6, wherein the cooling water channels in any two adjacent gear shafts are further connected through a second water pipe;
the second water pipe is located in the second lubricating installation cavity.
9. The ranging arm for a shearer loader with a very large mining height as claimed in claim 8, wherein a return pipe is provided on one of the second water pipes.
10. A shearer loader with an ultra-large mining height, characterized by comprising a rocker arm according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156287.8U CN211174099U (en) | 2019-12-04 | 2019-12-04 | Rocker arm used on coal mining machine with ultra-large mining height and coal mining machine with ultra-large mining height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922156287.8U CN211174099U (en) | 2019-12-04 | 2019-12-04 | Rocker arm used on coal mining machine with ultra-large mining height and coal mining machine with ultra-large mining height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211174099U true CN211174099U (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922156287.8U Active CN211174099U (en) | 2019-12-04 | 2019-12-04 | Rocker arm used on coal mining machine with ultra-large mining height and coal mining machine with ultra-large mining height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211174099U (en) |
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2019
- 2019-12-04 CN CN201922156287.8U patent/CN211174099U/en active Active
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