CN110608284B - Rocker arm cooler of coal mining machine and method - Google Patents
Rocker arm cooler of coal mining machine and method Download PDFInfo
- Publication number
- CN110608284B CN110608284B CN201911008321.5A CN201911008321A CN110608284B CN 110608284 B CN110608284 B CN 110608284B CN 201911008321 A CN201911008321 A CN 201911008321A CN 110608284 B CN110608284 B CN 110608284B
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- cooler
- idler
- idler wheel
- rocker arm
- wheel cavity
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
Abstract
The invention discloses a cooler and a method for a rocker arm of a coal mining machine, wherein the cooler comprises a first cooler and a second cooler which are detachably arranged in the rocker arm of the coal mining machine, the first cooler comprises a first support frame, a first cooling pipe and a fixed support, the first support frame comprises a first flange cover plate, a first circular cover plate, a first connecting rod and a first tip end arranged on the first circular cover plate, and the second cooler comprises a second support frame and a second cooling pipe; the method comprises the following steps: firstly, installing a first cooler in a rocker arm of a coal mining machine; secondly, installing a second cooler in the rocker arm of the coal mining machine; and thirdly, cooling the rocker arm of the coal mining machine. The invention has reasonable design and low cost, is convenient to disassemble and assemble and easy to maintain by cooling the idle wheel and the bearing in the idle wheel transmission system of the rocker arm of the coal mining machine, saves a large amount of maintenance time, lightens the labor intensity of workers and has strong practicability.
Description
Technical Field
The invention belongs to the technical field of cooling of coal mining machine rocker arms, and particularly relates to a cooler and a method for a coal mining machine rocker arm.
Background
Along with the continuous increase of the cutting power of the coal mining machine, the heat productivity of a mechanical transmission system of a rocker arm of the coal mining machine is also continuously increased, the cooling efficiency is low, and the temperature is easily overhigh, so that the transmission system of an idler wheel in the rocker arm of the coal mining machine fails, and the rocker arm has potential safety hazards of damage of the idler wheel, locking of a bearing and the like.
At present, two main cooling modes exist in most rocker arms of coal mining machines: (1) the rocker shell is cooled by the water channel groove, the structure has poor cooling effect, influences the strength of the shell and has poor adaptability to high-power rockers. (2) A cooling water pipe is welded inside the rocker arm shell for cooling, and the structure is poor in reliability and high in replacement difficulty. Once the two structures are blocked or leaked, the rocker arm must be stopped to be replaced, and great economic loss is caused to the coal mine; in addition, the maintenance of the existing rocker arm cooling device consumes a large amount of manpower, material resources and financial resources, wastes a large amount of time, and brings unnecessary economic loss to coal mines.
Therefore, at present, a cooler and a method for a rocker arm of a coal mining machine are lacked, and the temperature of lubricating oil in an idler wheel is reduced and the service life of the rocker arm transmission system is prolonged by cooling the idler wheel and a bearing in the idler wheel transmission system of the rocker arm of the coal mining machine, so that the working performance of the rocker arm of the coal mining machine is stable and reliable, and the production efficiency of the coal mining machine is improved; and the assembly and disassembly are convenient, the maintenance is easy, a large amount of maintenance time is saved, and the labor intensity of workers is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a cooler for a rocker arm of a coal mining machine, which has reasonable design and low cost, and can reduce the temperature of lubricating oil of an idler wheel and prolong the service life of a rocker arm transmission system by cooling the idler wheel and a bearing in the idler wheel transmission system of the rocker arm of the coal mining machine, so that the working performance of the rocker arm of the coal mining machine is stable and reliable, and the production efficiency of the coal mining machine is improved; and the assembly and disassembly are convenient, the maintenance is easy, a large amount of maintenance time is saved, the labor intensity of workers is reduced, and the practicability is high.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a coal-winning machine rocking arm cooler which characterized in that: the first cooler comprises a first support frame, a first cooling pipe sleeved on the first support frame, and a fixed support arranged at one end of the first support frame, wherein the first cooler comprises a first flange cover plate, a first circular cover plate, a first connecting rod connected between the first flange cover plate and the first circular cover plate, and a first tip end arranged on the first circular cover plate; the fixed support comprises a vertical rod and a mounting seat mounted on the vertical rod, and the first tip end penetrates into the vertical rod;
the second cooler includes that second support frame and cover establish second cooling tube on the second support frame, the second support frame includes second flange apron, the circular apron of second and connect in second connecting rod between second flange apron and the circular apron of second to and set up the second cusp portion on the circular apron of second, the quantity of second connecting rod is a plurality of, and is a plurality of the circumferencial direction equipartition of second flange apron is followed to the second connecting rod, be provided with two second hickeys on the second flange apron, two second hickeys are connected with the access & exit of second cooling tube respectively, the length of first connecting rod is greater than the length of second connecting rod.
The coal mining machine rocker arm cooler is characterized in that: the coal mining machine is characterized in that a cutting motor and a rocker arm transmission mechanism in transmission connection between the cutting motor and a cutting head are arranged in the rocker arm of the coal mining machine, a driving gear is arranged on an output shaft of the cutting motor in transmission, the rocker arm transmission mechanism comprises a first transmission gear and a second transmission gear which are sequentially in transmission connection with the driving gear, and a first idler wheel, a second idler wheel, a third idler wheel, a fourth idler wheel and a fifth idler wheel which are sequentially in meshing connection, and the first transmission gear is in meshing connection with the first idler wheel.
The coal mining machine rocker arm cooler is characterized in that: the number of the first connecting rods is three, the three first connecting rods are uniformly distributed along the circumferential direction of the first flange cover plate, and the cross section defined by the three first connecting rods is in a regular triangle shape; the number of the second connecting rods is three, the three second connecting rods are uniformly distributed along the circumferential direction of the second flange cover plate, and the cross section defined by the three second connecting rods is in a regular triangle shape;
the first threaded connector is detachably connected with a first threaded joint, and the second threaded connector is detachably connected with a second threaded joint.
The coal mining machine rocker arm cooler is characterized in that: the number of the first coolers is two, and the two first coolers are respectively an upper cooler arranged above an output shaft of the cutting motor and distributed along the length direction of the rocker arm of the coal mining machine and a lower cooler arranged below the output shaft of the cutting motor and distributed along the length direction of the rocker arm of the coal mining machine.
The coal mining machine rocker arm cooler is characterized in that: the number of the second coolers is eight, and the eight second coolers are respectively a first upper idler cavity cooler arranged above the space between the first idler and the second transmission gear, a first lower idler cavity cooler arranged below the space between the first idler and the second transmission gear, a second upper idler cavity cooler arranged above the space between the first idler and the second idler, a second lower idler cavity cooler arranged below the space between the first idler and the second idler, a third upper idler cavity cooler arranged above the space between the third idler and the fourth idler, a third lower idler cavity cooler arranged below the space between the third idler and the fourth idler, a fourth upper idler cavity cooler arranged above the space between the fourth idler and the fifth idler, and a fourth lower idler cavity cooler arranged below the space between the fourth idler and the fifth idler.
Meanwhile, the invention also discloses a method for cooling the rocker arm of the coal mining machine, which has the advantages of simple steps, reasonable design, convenient implementation and good use effect, and is characterized by comprising the following steps:
step one, installing a first cooler in a rocker arm of a coal mining machine:
step 101, installing a first cooler above an output shaft of a cutting motor along the length direction of a rocker arm of a coal mining machine, and recording the first cooler as an upper cooler;
102, mounting a first cooler below an output shaft of a cutting motor and along the length direction of a rocker arm of a coal mining machine, and recording the first cooler as a lower cooler;
step two, installing a second cooler in the rocker arm of the coal mining machine:
step 201, installing a second cooler above a position between a first idle wheel and a second transmission gear, and taking the second cooler as a first upper idle wheel cavity cooler, and installing a second cooler below a position between the first idle wheel and the second transmission gear, and taking the second cooler as a first lower idle wheel cavity cooler; the first upper idler wheel cavity cooler and the first lower idler wheel cavity cooler are symmetrically arranged up and down;
step 202, installing a second cooler above and as a second upper idler cavity cooler between the first idler and the second idler, and installing a second cooler below and as a second lower idler cavity cooler between the first idler and the second idler; the second upper idler wheel cavity cooler and the second lower idler wheel cavity cooler are symmetrically distributed up and down;
step 203, installing a second cooler above the space between the third idler wheel and the fourth idler wheel and taking the second cooler as a third upper idler wheel cavity cooler, and installing a second cooler below the space between the third idler wheel and the fourth idler wheel and taking the second cooler as a third lower idler wheel cavity cooler; the third upper idler wheel cavity cooler and the third lower idler wheel cavity cooler are symmetrically distributed up and down;
step 204, installing a second cooler above the space between the fourth idler wheel and the fifth idler wheel and taking the second cooler as a fourth upper idler wheel cavity cooler, and installing a second cooler below the space between the fourth idler wheel and the fifth idler wheel and taking the second cooler as a fourth lower idler wheel cavity cooler; the first upper idler wheel cavity cooler, the first lower idler wheel cavity cooler, the third upper idler wheel cavity cooler, the third lower idler wheel cavity cooler, the fourth upper idler wheel cavity cooler and the fourth lower idler wheel cavity cooler are all arranged along the width direction of the rocker arm of the coal mining machine;
step three, cooling the rocker arm of the coal mining machine:
step 301, introducing cooling water, wherein the cooling water sequentially passes through a first upper idler wheel cavity cooler, a first lower idler wheel cavity cooler, a second upper idler wheel cavity cooler, a second lower idler wheel cavity cooler, a third upper idler wheel cavity cooler, a third lower idler wheel cavity cooler, a fourth upper idler wheel cavity cooler and a fourth lower idler wheel cavity cooler, and simultaneously the cooling water sequentially passes through the upper cooler and the lower cooler to cool the rocker arm of the coal mining machine;
and step 302, spraying water in the upper cooler and the lower cooler to the upper spray head and the lower spray head through the flow dividing pipe, meanwhile, cooling water in a fourth upper idler wheel cavity cooler is connected with the water inlet seat through a fourth upper connecting pipe, and cooling water in a fourth lower idler wheel cavity cooler is connected with the water inlet seat through a fourth lower connecting pipe and enters the cutting head for cooling through the water inlet seat.
The above method is characterized in that: the installation of the first cooler in step 101 and step 102 specifically comprises the following processes:
step 101A, arranging a mounting hole on the rocker arm shell, and installing a vertical rod in the fixed support through the mounting hole until the surface of the mounting seat is flush with the surface of the rocker arm shell; wherein, a screw is arranged in a threaded hole on the mounting seat so as to ensure that the mounting seat is fixedly and detachably connected with the rocker arm shell;
step 101B, installing a first support frame provided with a first cooling pipe in the fixed support; the first tip end part of the first support frame penetrates into the vertical rod;
and step 101C, detachably mounting the first round cover plate of the first support frame in the rocker arm shell through screws.
The above method is characterized in that: installing the second cooler in the steps 201 to 204, specifically including the following steps:
step 201A, arranging a side mounting hole on the old Tang side of the rocker arm shell, and extending a second support frame provided with a second cooling pipe into the rocker arm shell through the side mounting hole; the diameter of the side mounting hole is smaller than that of the second flange cover plate;
step 201B, fixedly and detachably connecting a second flange cover plate on a second supporting frame with the Tang side of the rocker arm shell through screws;
and step 201C, installing a side guard plate on the old Tang side of the rocker arm shell.
The above method is characterized in that: between the installation of the second cooler in the second shearer ranging arm and the cooling of the third shearer ranging arm, the following steps are required:
step A, connecting a first cooler in a rocker arm of a coal mining machine:
step A01, connecting a first common water inlet pipe between the inlet of the upper cooler and the inlet of the lower cooler, wherein a first total water inlet pipe is arranged on the first common water inlet pipe;
step A02, a first public water outlet pipe is connected between the outlet of the upper cooler and the outlet of the lower cooler, and a first total water outlet pipe is arranged on the first public water outlet pipe;
step A03, the outlet of the first main water outlet pipe is connected with a shunt pipe through a connecting pipe; one end of the flow dividing pipe is communicated with an upper spray head on a rocker arm of the coal mining machine, and the other end of the flow dividing pipe is communicated with a lower spray head on the rocker arm of the coal mining machine;
step B, connecting a second cooler in the rocker arm of the coal mining machine:
step B01, a second common water inlet pipe is connected between the inlet of the first upper idle wheel cavity cooler and the inlet of the first lower idle wheel cavity cooler, and a second main water inlet pipe is arranged on the second common water inlet pipe;
step B02, connecting an outlet of the first upper idler wheel cavity cooler with an inlet of a second upper idler wheel cavity cooler through a first upper connecting pipe, connecting an outlet of the second upper idler wheel cavity cooler with an inlet of a third upper idler wheel cavity cooler through a second upper connecting pipe, connecting an outlet of the third upper idler wheel cavity cooler with an inlet of a fourth upper idler wheel cavity cooler through a third upper connecting pipe, and connecting an outlet of the fourth upper idler wheel cavity cooler with a water inlet seat through a fourth upper connecting pipe;
and step B03, connecting the outlet of the first lower idler wheel cavity cooler with the inlet of the second lower idler wheel cavity cooler through a first lower connecting pipe, connecting the outlet of the second lower idler wheel cavity cooler with the inlet of the third lower idler wheel cavity cooler through a second lower connecting pipe, connecting the outlet of the third lower idler wheel cavity cooler with the inlet of the fourth lower idler wheel cavity cooler through a third lower connecting pipe, and connecting the outlet of the fourth lower idler wheel cavity cooler with the water inlet seat through a fourth lower connecting pipe.
The above method is characterized in that: the temperature of the cooling water in step 301 is 20-30 ℃.
Compared with the prior art, the invention has the following advantages:
1. simple structure, reasonable in design and simple and convenient, the input cost is lower in the installation dismantlement.
2. The first cooler and the second cooler are detachably arranged in the rocker arm of the coal mining machine, the structure is simple, the disassembly and the assembly are convenient, and the cooling effect is good.
3. The adopted first cooler comprises a first support frame, a first cooling pipe sleeved on the first support frame and a fixed support arranged at one end of the first support frame, the first cooling pipe is arranged through the first support frame, so that the first cooling pipe and the first support frame are connected into a whole, the first cooler assembly is ensured to be a rigid body, and the structure is compact, the rigidity is good, the reliability is high, and the heat dissipation area is large; in addition, the first flange cover plate at one end of the fixed support and one end of the first support frame are fixed through screws to realize detachable installation, and the first cooling pipe is prevented from vibrating and deforming, so that the detachable cooling device is effectively suitable for a cavity where a cutting motor of a rocker arm of a coal mining machine is located.
4. The adopted second cooler comprises a second support frame and a second cooling pipe sleeved on the second support frame, the length of the second connecting rod is smaller than that of the first connecting rod, so that a fixed support is not needed, in addition, the second cooling pipe is installed through the second support frame, so that the second cooling pipe and the second support frame are connected into a whole, and the second cooler assembly is ensured to be a rigid body, and the structure is compact, the rigidity is good, the reliability is high, and the heat dissipation area is large; and secondly, the second flange cover plate at one end of the first support frame is detachably mounted through screws, so that the second flange cover plate is effectively suitable for a cavity where an idler wheel of the coal mining machine rocker arm is located.
5. The adopted method for cooling the rocker arm of the coal mining machine has simple steps, is convenient to realize and simple and convenient to operate, and ensures the rocker arm of the coal mining machine to work stably.
6. The adopted method for cooling the rocker arm of the coal mining machine is simple and convenient to operate and good in using effect, firstly, a first cooler in the rocker arm of the coal mining machine is installed, secondly, a second cooler in the rocker arm of the coal mining machine is installed, finally, cooling water is introduced, the cooling water sequentially passes through a first upper idler cavity cooler, a first lower idler cavity cooler, a second upper idler cavity cooler, a second lower idler cavity cooler, a third upper idler cavity cooler, a third lower idler cavity cooler, a fourth upper idler cavity cooler and a fourth lower idler cavity cooler, and meanwhile, the cooling water sequentially passes through the upper cooler and the lower cooler to cool the rocker arm of the coal mining machine, so that the stable operation of the rocker arm of the coal mining machine is ensured to be suitable for long-time coal mining requirements.
In conclusion, the cooling device has reasonable design and low cost, and can reduce the temperature of lubricating oil of the idler pulley and prolong the service life of the rocker arm transmission system by cooling the idler pulley and the bearing in the rocker arm idler pulley transmission system of the coal mining machine, so that the working performance of the rocker arm of the coal mining machine is stable and reliable, and the production efficiency of the coal mining machine is improved; and the assembly and disassembly are convenient, the maintenance is easy, a large amount of maintenance time is saved, the labor intensity of workers is reduced, and the practicability is high.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural diagram of a first cooler of a rocker arm cooler of a coal mining machine according to the present invention.
Fig. 2 is a schematic structural diagram of a second cooler of the shearer ranging arm cooler of the present invention.
Fig. 3 is a schematic structural diagram of the layout position of the first cooler of the rocker arm cooler of the coal mining machine.
Fig. 4 is a schematic diagram of the layout position structure of the second cooler of the rocker arm cooler of the coal mining machine.
Fig. 5 is a schematic structural view of the box-type connecting frame of the rocker arm cooler of the coal mining machine.
FIG. 6 is a flow chart diagram of a method for cooling a shearer ranging arm of the present invention.
Description of reference numerals:
1-1 — a first cooling tube; 1-2 — a first cylindrical portion; 1-3 — a first frustum portion;
1-4-vertical rod; 1-4-1-a first seal ring; 1-5-a first circular cover plate;
1-6-mounting seat; 1-7-first threaded hole; 1-8-first connecting rod;
1-9-a first flange cover; 1-11 — a first threaded interface; 1-12-a first threaded joint;
2-1 — a second cooling tube; 2-2 — a second cylindrical portion; 2-3-a second frustum portion;
2-5-a second circular cover plate; 2-8-a second connecting rod; 2-9-a second flange cover plate;
2-11 — a second threaded interface; 2-12 — a second threaded joint;
1-a second common water inlet pipe; 2-a first upper connecting tube; 3-second upper connecting pipe;
4-third upper connecting pipe; 5-fourth upper connecting pipe; 6-first lower connecting pipe;
7-second lower connecting pipe; 8-third lower connecting pipe; 9-fourth lower connecting pipe;
10-a first upper idler cavity cooler; 11-water inlet seat;
13-rocker arm housing; 14-a second transmission gear; 15-a first idler pulley;
16-a second idler pulley; 17-third idler gear; 18-fourth idler;
19-fifth idler; 20-a first lower idler cavity cooler; 21-a cutting motor;
22-a second main water inlet pipe; 23-box type connecting frame;
23-1-opening; 24-connecting frame through holes;
25-ear mount; 26-connecting frame mounting holes; 27 — a first transmission gear;
28-a drive gear; 29-a cutting head; 30-a second upper idler cavity cooler;
31-shunt tube; 32-an upper spray head; 33-lower spray head;
40-a second lower idler cavity cooler; 50-a third upper idler cavity cooler;
60-a third lower idler cavity cooler; 70-a fourth upper idler cavity cooler;
80-a fourth lower idler cavity cooler; 90-upper cooler;
100-lower cooler.
Detailed Description
The cooler for the rocker arm of the coal mining machine shown in fig. 1 to 4 comprises a first cooler and a second cooler which are detachably mounted in the rocker arm of the coal mining machine, wherein the first cooler comprises a first support frame, a first cooling pipe 1-1 which is sleeved on the first support frame, and a fixing support which is mounted at one end of the first support frame, the first support frame comprises a first flange cover plate 1-9, a first circular cover plate 1-5, a first connecting rod 1-8 which is connected between the first flange cover plate 1-9 and the first circular cover plate 1-5, and a first tip end which is arranged on the first circular cover plate 1-5, the number of the first connecting rods 1-8 is multiple, the multiple first connecting rods 1-8 are uniformly distributed along the circumferential direction of the first flange cover plate 1-9, and two first threaded connectors 1-11 are arranged on the first flange cover plate 1-9, the two first threaded connectors 1-11 are respectively connected with the inlet and the outlet of the first cooling pipe 1-1; the fixed support comprises vertical rods 1-4 and mounting seats 1-6 mounted on the vertical rods 1-4, and the first tip penetrates into the vertical rods 1-4;
the second cooler comprises a second support frame and a second cooling pipe 2-1 sleeved on the second support frame, the second support frame comprises a second flange cover plate 2-9, a second circular cover plate 2-5 and a second connecting rod 2-8 connected between the second flange cover plate 2-9 and the second circular cover plate 2-5, and a plurality of second tip parts arranged on the second circular cover plates 2-5, the second connecting rods 2-8 are uniformly distributed along the circumferential direction of the second flange cover plates 2-9, two second threaded interfaces 2-11 are arranged on the second flange cover plate 2-9, the two second threaded interfaces 2-11 are respectively connected with the inlet and the outlet of the second cooling pipe 2-1, the length of the first connecting rods 1-8 is greater than that of the second connecting rods 2-8.
In this embodiment, a cutting motor 21 and a rocker arm transmission mechanism which is in transmission connection between the cutting motor 21 and a cutting head 29 are arranged in the rocker arm of the coal mining machine, a driving gear 28 is arranged on an output shaft of the cutting motor 21 in a transmission manner, the rocker arm transmission mechanism comprises a first transmission gear 27 and a second transmission gear 14 which are in transmission connection with the driving gear 28 in sequence, and a first idler wheel 15, a second idler wheel 16, a third idler wheel 17, a fourth idler wheel 18 and a fifth idler wheel 19 which are in meshing connection in sequence, and the first transmission gear 27 is in meshing connection with the first idler wheel 15.
In the embodiment, the number of the first connecting rods 1 to 8 is three, the three first connecting rods 1 to 8 are uniformly distributed along the circumferential direction of the first flange cover plate 1 to 9, and the cross section surrounded by the three first connecting rods 1 to 8 is in a regular triangle shape; the number of the second connecting rods 2-8 is three, the three second connecting rods 2-8 are uniformly distributed along the circumferential direction of the second flange cover plate 2-9, and the cross section surrounded by the three second connecting rods 2-8 is in a regular triangle shape;
the first threaded connector 1-11 is detachably connected with a first threaded connector 1-12, and the second threaded connector 2-11 is detachably connected with a second threaded connector 2-12.
In this embodiment, the number of the first coolers is two, and the two first coolers are an upper cooler 90 disposed above the output shaft of the cutting motor 21 and arranged along the length direction of the shearer arm, and a lower cooler 100 disposed below the output shaft of the cutting motor 21 and arranged along the length direction of the shearer arm.
In this embodiment, the number of the second coolers is eight, the eight second coolers are respectively a first upper idler cavity cooler 10 disposed above between the first idler 15 and the second transmission gear 14, a first lower idler cavity cooler 20 disposed below between the first idler 15 and the second transmission gear 14, a second upper idler cavity cooler 30 disposed above between the first idler 15 and the second idler 16, a second lower idler cavity cooler 40 disposed below between the first idler 15 and the second idler 16, a third upper idler cavity cooler 50 disposed above between the third idler 17 and the fourth idler 18, a third lower idler cavity cooler 60 disposed below between the third idler 17 and the fourth idler 18, a fourth upper idler cavity cooler 70 disposed above between the fourth idler 18 and the fifth idler 19, and a fourth lower idler cavity cooler 80 disposed below between the fourth idler 18 and the fifth idler 19.
In the present embodiment, the first tip portion includes a first cylindrical portion 1-2 and a first frustum portion 1-3 integrally formed with the first cylindrical portion 1-2.
In the present embodiment, the second tip portion includes a second cylindrical portion 2-2 and a second tapered step portion 2-3 integrally formed with the second cylindrical portion 2-2.
In this embodiment, in an actual installation process, the vertical rod 1-4 is sleeved with a first sealing ring 1-4-1, and the first flange cover plate 1-9 and the second circular cover plate 2-5 are sleeved with a second sealing ring to facilitate sealing connection.
In this embodiment, in an actual installation process, first threaded holes 1 to 7 are formed at four corners of the installation base 1 to 6.
In this embodiment, the first support frames 1 to 8 are provided for the purpose of: firstly, the first cooling pipe 1-1 is installed through the first support frame 1-8, so that the first cooling pipe 1-1 and the first support frame 1-8 are connected into a whole, and the first cooler assembly is ensured to be a rigid body, and the structure is compact, the rigidity is good, and the reliability is high; secondly, a cavity can be formed in the first cooling pipe 1-1, the heat conducting performance of the first cooling pipe 1-1 is improved, the heat radiating area is large, and the cooling effect is obvious; thirdly, the installation of the first flange cover plates 1-9 is convenient; fourthly, the first cooling pipe is prevented from vibrating 1-1 and deforming, and the cavity where a cutting motor of a rocker arm of a coal mining machine is located is effectively adapted; fifthly, the first cooler is detachably mounted in order to be matched with the fixed support.
In this embodiment, the second support frames 2 to 8 are provided for the purpose of: secondly, the second cooling pipe 2-1 is installed through the second support frame 2-8, so that the second cooling pipe 2-1 and the second support frame 2-8 are connected into a whole, and the second cooler assembly is guaranteed to be a rigid body, and the structure is compact, the rigidity is good, and the reliability is high; secondly, in order to form a cavity in the second cooling pipe 2-1, the heat conducting performance of the second cooling pipe 2-1 is improved, the heat radiating area is large, and the cooling effect is obvious; thirdly, the second flange cover plates 2-9 are convenient to mount, the cavities where the idler wheels of the rocker arm of the coal mining machine are located are effectively adapted, and the second cooler is detachably mounted.
In the embodiment, the first tip part comprises a first cylindrical part 1-2 and a first cone part 1-3 integrally formed with the first cylindrical part 1-2, and the first cone part 1-3 is arranged for reducing installation resistance, facilitating the first tip part to be quickly installed in the vertical rod 1-4, and facilitating disassembly and replacement; the first cylindrical part 1-2 is arranged, so that when the first cone part 1-3 penetrates into the vertical rod 1-4, the outer surface of the first cylindrical part 1-2 is ensured to be attached to the inner surface of the mounting hole in the vertical rod 1-4, and the overall stability is enhanced.
In the embodiment, the first cooler and the second cooler are detachably arranged in the rocker arm of the coal mining machine through screws, so that the structure is simple, the disassembly and the assembly are convenient, the cooling effect is good, the phenomenon that the strength of the rocker arm is influenced by slotting or welding a cooling water pipe on a shell of the rocker arm is avoided, and the performance is superior compared with the existing structure; in addition, the cooler can be independently disassembled, assembled and replaced, the maintenance is convenient, the labor intensity of workers is reduced, and the production efficiency is improved; secondly, the quantity of first cooler and second cooler is a plurality ofly, adopts many arrangement structure, and the cooling area is big, easy operation, and the adaptability is good.
In this embodiment, the first upper idler cavity cooler 10, the first lower idler cavity cooler 20, the third upper idler cavity cooler 50, the third lower idler cavity cooler 60, the fourth upper idler cavity cooler 70, and the fourth lower idler cavity cooler 80 are uniformly distributed between the two sets of gears to greatly increase the heat dissipation area; in addition, the rocker arm can be directly disassembled outside the rocker arm shell 13, so that the operation is simple and the maintenance is convenient.
As shown in fig. 4 and 5, in this embodiment, a box-type connecting frame 23 is detachably connected to one end of the rocker arm housing 13 close to the cutting motor 21, an ear seat 25 and an opening 23-1 are disposed on the box-type connecting frame 23, the box-type connecting frame 23 is detachably connected to the shearer body through a stud bolt, and two connecting frame through holes 24 are disposed on the box-type connecting frame 23, and are symmetrically disposed and respectively used for passing the upper cooler 90 and the lower cooler 100. In this way, the cooler 90 and the lower cooler 100 can be independently disassembled and replaced through the opening part 23-1 and the connecting frame through hole 24, the box-type connecting frame 23, the rocker arm shell 13 and the coal cutter body do not need to be disassembled, and the maintenance is convenient.
In this embodiment, in the actual installation process, the box-type connecting frame 23 is provided with a plurality of connecting frame installation holes 26 for the stud bolts to penetrate through.
The method for cooling the rocker arm of the coal mining machine shown in fig. 6 comprises the following steps:
step one, installing a first cooler in a rocker arm of a coal mining machine:
step 101, installing a first cooler above an output shaft of a cutting motor 21 along the length direction of a rocker arm of a coal mining machine, and recording the first cooler as an upper cooler 90;
102, mounting a first cooler below an output shaft of the cutting motor 21 and along the length direction of a rocker arm of the coal mining machine, and recording the first cooler as a lower cooler 100;
step two, installing a second cooler in the rocker arm of the coal mining machine:
step 201, installing a second cooler above the space between the first idle gear 15 and the second transmission gear 14, and taking the second cooler as a first upper idle gear cavity cooler 10, and installing a second cooler below the space between the first idle gear 15 and the second transmission gear 14, and taking the second cooler as a first lower idle gear cavity cooler 20; wherein, the first upper idle wheel cavity cooler 10 and the first lower idle wheel cavity cooler 20 are symmetrically arranged up and down;
step 202, installing a second cooler above the space between the first idler gear 15 and the second idler gear 16, and denoted as a second upper idler gear cavity cooler 30, and installing a second cooler below the space between the first idler gear 15 and the second idler gear 16, and denoted as a second lower idler gear cavity cooler 40; wherein, the second upper idler wheel cavity cooler 30 and the second lower idler wheel cavity cooler 40 are symmetrically arranged up and down;
step 203, installing a second cooler above the space between the third idler pulley 17 and the fourth idler pulley 18, and taking the second cooler as a third upper idler pulley cavity cooler 50, and installing a second cooler below the space between the third idler pulley 17 and the fourth idler pulley 18, and taking the second cooler as a third lower idler pulley cavity cooler 60; wherein, the third upper idler wheel cavity cooler 50 and the third lower idler wheel cavity cooler 60 are symmetrically arranged up and down;
step 204, installing a second cooler above and noted as a fourth upper idler cavity cooler 70 between the fourth idler 18 and the fifth idler 19, and installing a second cooler below and noted as a fourth lower idler cavity cooler 80 between the fourth idler 18 and the fifth idler 19; the fourth upper idler cavity cooler 70 and the fourth lower idler cavity cooler 80 are symmetrically arranged up and down, and the first upper idler cavity cooler 10, the first lower idler cavity cooler 20, the third upper idler cavity cooler 50, the third lower idler cavity cooler 60, the fourth upper idler cavity cooler 70 and the fourth lower idler cavity cooler 80 are all arranged along the width direction of the rocker arm of the coal mining machine;
step three, cooling the rocker arm of the coal mining machine:
step 301, introducing cooling water through a first main water inlet pipe and a second main water inlet pipe 22, enabling the cooling water to sequentially pass through a first upper idler wheel cavity cooler 10, a first lower idler wheel cavity cooler 20, a second upper idler wheel cavity cooler 30, a second lower idler wheel cavity cooler 40, a third upper idler wheel cavity cooler 50, a third lower idler wheel cavity cooler 60, a fourth upper idler wheel cavity cooler 70 and a fourth lower idler wheel cavity cooler 80, and enabling the cooling water to sequentially pass through an upper cooler 90 and a lower cooler 100 to cool a rocker arm of a coal mining machine;
and step 302, spraying water in the upper cooler 90 and the lower cooler 100 to the upper spray head 32 and the lower spray head 33 through the diversion pipe 31, meanwhile, cooling water in the fourth upper idler wheel cavity cooler 70 is connected with the water inlet seat 11 through the fourth upper connecting pipe 5, and cooling water in the fourth lower idler wheel cavity cooler 80 is connected with the water inlet seat 11 through the fourth lower connecting pipe 9 and enters the cutting head for cooling through the water inlet seat 11.
In this embodiment, the specific process of installing the first cooler in step 101 and step 102 is as follows:
step 101A, arranging a mounting hole on the rocker arm shell 13, and installing the vertical rod 1-4 in the fixed support through the mounting hole until the surface of the mounting seat 1-6 is flush with the surface of the rocker arm shell 13; wherein, a screw is arranged in a threaded hole on the mounting seat 1-6, so that the mounting seat 1-6 is fixedly and detachably connected with the rocker arm shell 13;
step 101B, installing a first support frame provided with a first cooling pipe 1-1 in the fixed support; wherein the first tip end part in the first support frame penetrates into the vertical rod 1-4;
and step 101C, detachably mounting the first circular cover plate 1-5 of the first support frame in the rocker arm shell 13 through screws.
In this embodiment, the installation of the second cooler in steps 201 to 204 specifically includes the following processes:
step 201A, arranging a side mounting hole on the old Tang side of the rocker arm shell 13, and extending a second support frame provided with a second cooling pipe 2-1 into the rocker arm shell 13 through the side mounting hole; the diameter of the side mounting hole is smaller than the diameter of the second flange cover plate 2-9;
step 201B, fixedly and detachably connecting a second flange cover plate 2-9 on a second support frame with the Tang side of the rocker arm shell 13 through screws;
and step 201C, installing a side guard plate on the old Tang side of the rocker arm shell 13.
In this embodiment, the following steps are required between the installation of the second cooler in the second shearer ranging arm and the cooling of the third shearer ranging arm:
step A, connecting a first cooler in a rocker arm of a coal mining machine:
step A01, a first common water inlet pipe is connected between the inlet of the upper cooler 90 and the inlet of the lower cooler 100, and a first total water inlet pipe is arranged on the first common water inlet pipe;
step A02, a first common water outlet pipe is connected between the outlet of the upper cooler 90 and the outlet of the lower cooler 100, and a first total water outlet pipe is arranged on the first common water outlet pipe;
step A03, the outlet of the first main water outlet pipe is connected with the shunt pipe 31 through a connecting pipe; one end of the shunt pipe 31 is communicated with an upper spray head 32 on a rocker arm of the coal mining machine, and the other end of the shunt pipe 31 is communicated with a lower spray head 33 on the rocker arm of the coal mining machine;
step B, connecting a second cooler in the rocker arm of the coal mining machine:
step B01, a second common water inlet pipe 1 is connected between the inlet of the first upper idle wheel cavity cooler 10 and the inlet of the first lower idle wheel cavity cooler 20, and a second main water inlet pipe 22 is arranged on the second common water inlet pipe 1;
step B02, connecting the outlet of the first upper idler wheel cavity cooler 10 with the inlet of the second upper idler wheel cavity cooler 30 through a first upper connecting pipe 2, connecting the outlet of the second upper idler wheel cavity cooler 30 with the inlet of a third upper idler wheel cavity cooler 50 through a second upper connecting pipe 3, connecting the outlet of the third upper idler wheel cavity cooler 50 with the inlet of a fourth upper idler wheel cavity cooler 70 through a third upper connecting pipe 4, and connecting the outlet of the fourth upper idler wheel cavity cooler 70 with the water inlet seat 11 through a fourth upper connecting pipe 5;
in step B03, the outlet of the first lower idler cavity cooler 20 is connected to the inlet of the second lower idler cavity cooler 40 through the first lower connecting pipe 6, the outlet of the second lower idler cavity cooler 40 is connected to the inlet of the third lower idler cavity cooler 60 through the second lower connecting pipe 7, the outlet of the third lower idler cavity cooler 60 is connected to the inlet of the fourth lower idler cavity cooler 80 through the third lower connecting pipe 8, and the outlet of the fourth lower idler cavity cooler 80 is connected to the water inlet base 11 through the fourth lower connecting pipe 9.
In this embodiment, the temperature of the cooling water in step 301 is 20 to 30 ℃.
In conclusion, the cooling device has reasonable design and low cost, and can reduce the temperature of lubricating oil of the idler pulley and prolong the service life of the rocker arm transmission system by cooling the idler pulley and the bearing in the rocker arm idler pulley transmission system of the coal mining machine, so that the working performance of the rocker arm of the coal mining machine is stable and reliable, and the production efficiency of the coal mining machine is improved; and the assembly and disassembly are convenient, the maintenance is easy, a large amount of maintenance time is saved, the labor intensity of workers is reduced, and the practicability is high.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a coal-winning machine rocking arm cooler which characterized in that: the coal mining machine cooling device comprises a first cooler and a second cooler which are detachably installed in a coal mining machine rocker arm, wherein the first cooler comprises a first support frame, a first cooling pipe (1-1) sleeved on the first support frame, and a fixed support installed at one end of the first support frame, the first support frame comprises a first flange cover plate (1-9), a first circular cover plate (1-5), first connecting rods (1-8) connected between the first flange cover plate (1-9) and the first circular cover plate (1-5), and first tip parts arranged on the first circular cover plate (1-5), the number of the first connecting rods (1-8) is multiple, the first connecting rods (1-8) are uniformly distributed along the circumferential direction of the first flange cover plate (1-9), and two first threaded connectors (1-11) are arranged on the first flange cover plate (1-9) ) The two first threaded connectors (1-11) are respectively connected with the inlet and the outlet of the first cooling pipe (1-1); the fixing support comprises a vertical rod (1-4) and a mounting seat (1-6) mounted on the vertical rod (1-4), and the first tip end penetrates into the vertical rod (1-4);
the second cooler comprises a second support frame and a second cooling pipe (2-1) sleeved on the second support frame, the second support frame comprises a second flange cover plate (2-9), a second circular cover plate (2-5), a second connecting rod (2-8) connected between the second flange cover plate (2-9) and the second circular cover plate (2-5) and a second tip end arranged on the second circular cover plate (2-5), the number of the second connecting rods (2-8) is multiple, the second connecting rods (2-8) are uniformly distributed along the circumferential direction of the second flange cover plate (2-9), the second flange cover plate (2-9) is provided with two second threaded connectors (2-11), and the two second threaded connectors (2-11) are respectively connected with an inlet and an outlet of the second cooling pipe (2-1), the length of the first connecting rod (1-8) is greater than that of the second connecting rod (2-8);
the number of the second coolers is eight, and the eight second coolers are respectively a first upper idler cavity cooler (10) arranged above a position between a first idler (15) and a second transmission gear (14), a first lower idler cavity cooler (20) arranged below a position between the first idler (15) and the second transmission gear (14), a second upper idler cavity cooler (30) arranged above a position between the first idler (15) and the second idler (16), a second lower idler cavity cooler (40) arranged below a position between the first idler (15) and the second idler (16), a third upper idler cavity cooler (50) arranged above a position between a third idler (17) and a fourth idler (18), a third lower idler cavity cooler (60) arranged below a position between the third idler (17) and the fourth idler (18), a fourth upper idler cavity cooler (70) arranged above a position between the fourth idler (18) and the fifth idler (19), and a fourth idler (70) arranged above a position between the fourth idler (18) and the fifth idler (19) (18) And a fourth lower idler cavity cooler (80) below and between the fifth idlers (19).
2. The shearer rocker cooler of claim 1, wherein: the coal cutter is characterized in that a cutting motor (21) and a rocker arm transmission mechanism which is connected between the cutting motor (21) and a cutting head (29) in a transmission mode are arranged in a rocker arm of the coal cutter, a driving gear (28) is arranged on an output shaft of the cutting motor (21) in a transmission mode, the rocker arm transmission mechanism comprises a first transmission gear (27) and a second transmission gear (14) which are sequentially connected with the driving gear (28) in a transmission mode, a first idler wheel (15), a second idler wheel (16), a third idler wheel (17), a fourth idler wheel (18) and a fifth idler wheel (19) which are sequentially connected in a meshed mode, and the first transmission gear (27) is connected with the first idler wheel (15) in a meshed mode.
3. The shearer rocker cooler of claim 1, wherein: the number of the first connecting rods (1-8) is three, the three first connecting rods (1-8) are uniformly distributed along the circumferential direction of the first flange cover plate (1-9), and the cross section surrounded by the three first connecting rods (1-8) is in a regular triangle shape; the number of the second connecting rods (2-8) is three, the three second connecting rods (2-8) are uniformly distributed along the circumferential direction of the second flange cover plate (2-9), and the cross section surrounded by the three second connecting rods (2-8) is in a regular triangle shape;
the first threaded connector (1-11) is detachably connected with a first threaded connector (1-12), and the second threaded connector (2-11) is detachably connected with a second threaded connector (2-12).
4. The shearer rocker cooler of claim 1, wherein: the number of the first coolers is two, and the two first coolers are respectively an upper cooler (90) arranged above an output shaft of the cutting motor (21) and distributed along the length direction of the rocker arm of the coal mining machine and a lower cooler (100) arranged below the output shaft of the cutting motor (21) and distributed along the length direction of the rocker arm of the coal mining machine.
5. A method of cooling a shearer loader arm using the shearer arm cooler of claim 1, comprising the steps of:
step one, installing a first cooler in a rocker arm of a coal mining machine:
step 101, installing a first cooler above an output shaft of a cutting motor (21) along the length direction of a rocker arm of a coal mining machine, and recording the first cooler as an upper cooler (90);
102, mounting a first cooler below an output shaft of a cutting motor (21) along the length direction of a rocker arm of a coal mining machine, and recording the first cooler as a lower cooler (100);
step two, installing a second cooler in the rocker arm of the coal mining machine:
step 201, installing a second cooler above the space between the first idle gear (15) and the second transmission gear (14) and taking the second cooler as a first upper idle gear cavity cooler (10), and installing a second cooler below the space between the first idle gear (15) and the second transmission gear (14) and taking the second cooler as a first lower idle gear cavity cooler (20); the first upper idler wheel cavity cooler (10) and the first lower idler wheel cavity cooler (20) are symmetrically arranged up and down;
step 202, installing a second cooler above and between the first idler pulley (15) and the second idler pulley (16) and named as a second upper idler pulley cavity cooler (30), and installing a second cooler below and between the first idler pulley (15) and the second idler pulley (16) and named as a second lower idler pulley cavity cooler (40); wherein the second upper idler wheel cavity cooler (30) and the second lower idler wheel cavity cooler (40) are symmetrically arranged up and down;
step 203, installing a second cooler above the space between the third idler pulley (17) and the fourth idler pulley (18) and taking the second cooler as a third upper idler pulley cavity cooler (50), and installing a second cooler below the space between the third idler pulley (17) and the fourth idler pulley (18) and taking the second cooler as a third lower idler pulley cavity cooler (60); wherein, the third upper idle wheel cavity cooler (50) and the third lower idle wheel cavity cooler (60) are symmetrically arranged up and down;
step 204, installing a second cooler above the space between the fourth idler pulley (18) and the fifth idler pulley (19) and named as a fourth upper idler pulley cavity cooler (70), and installing a second cooler below the space between the fourth idler pulley (18) and the fifth idler pulley (19) and named as a fourth lower idler pulley cavity cooler (80); the first upper idler wheel cavity cooler (10), the first lower idler wheel cavity cooler (20), the third upper idler wheel cavity cooler (50), the third lower idler wheel cavity cooler (60), the fourth upper idler wheel cavity cooler (70) and the fourth lower idler wheel cavity cooler (80) are all arranged along the width direction of the rocker arm of the coal mining machine;
step three, cooling the rocker arm of the coal mining machine:
step 301, introducing cooling water, wherein the cooling water sequentially passes through a first upper idler wheel cavity cooler (10), a first lower idler wheel cavity cooler (20), a second upper idler wheel cavity cooler (30), a second lower idler wheel cavity cooler (40), a third upper idler wheel cavity cooler (50), a third lower idler wheel cavity cooler (60), a fourth upper idler wheel cavity cooler (70) and a fourth lower idler wheel cavity cooler (80), and simultaneously the cooling water sequentially passes through an upper cooler (90) and a lower cooler (100) to cool a rocker arm of a coal mining machine;
and step 302, spraying water in the upper cooler (90) and the lower cooler (100) to the upper spray head (32) and the lower spray head (33) through the shunt pipe (31), and meanwhile, cooling water in the fourth upper idler wheel cavity cooler (70) and the fourth lower idler wheel cavity cooler (80) enters the cutting head (29) through the water inlet seat (11) for cooling.
6. The method of claim 5, wherein: the installation of the first cooler in step 101 and step 102 specifically comprises the following processes:
step 101A, arranging a mounting hole on a rocker arm shell (13), and installing a vertical rod (1-4) in the fixed support through the mounting hole until the surface of a mounting seat (1-6) is flush with the surface of the rocker arm shell (13); wherein, a screw is arranged in a threaded hole on the mounting seat (1-6) so that the mounting seat (1-6) is fixedly and detachably connected with the rocker arm shell (13);
step 101B, installing a first support frame provided with a first cooling pipe (1-1) in the fixed support frame; wherein the first tip end part in the first support frame penetrates into the vertical rod (1-4);
and step 101C, detachably mounting the first circular cover plate (1-5) of the first support frame in the rocker arm shell (13) through screws.
7. The method of claim 5, wherein: installing the second cooler in the steps 201 to 204, specifically including the following steps:
step 201A, arranging a side mounting hole on the old Tang side of the rocker arm shell (13), and extending a second support frame provided with a second cooling pipe (2-1) into the rocker arm shell (13) through the side mounting hole; wherein the diameter of the side mounting hole is smaller than the diameter of the second flange cover plate (2-9);
step 201B, fixedly and detachably connecting a second flange cover plate (2-9) on a second supporting frame with the Tang side of the rocker arm shell (13) through screws;
and step 201C, installing a side guard plate on the old Tang side of the rocker arm shell (13).
8. The method of claim 5, wherein: between the installation of the second cooler in the second shearer ranging arm and the cooling of the third shearer ranging arm, the following steps are required:
step A, connecting a first cooler in a rocker arm of a coal mining machine:
a01, connecting a first common water inlet pipe between an inlet of an upper cooler (90) and an inlet of a lower cooler (100), wherein a first total water inlet pipe is arranged on the first common water inlet pipe;
step A02, a first public water outlet pipe is connected between an outlet of the upper cooler (90) and an outlet of the lower cooler (100), and a first total water outlet pipe is arranged on the first public water outlet pipe;
step A03, the outlet of the first main water outlet pipe is connected with a shunt pipe (31) through a connecting pipe; one end of the shunt pipe (31) is communicated with an upper spray head (32) on a rocker arm of the coal mining machine, and the other end of the shunt pipe (31) is communicated with a lower spray head (33) on the rocker arm of the coal mining machine;
step B, connecting a second cooler in the rocker arm of the coal mining machine:
step B01, a second common water inlet pipe (1) is connected between the inlet of the first upper idler wheel cavity cooler (10) and the inlet of the first lower idler wheel cavity cooler (20), and a second main water inlet pipe (22) is arranged on the second common water inlet pipe (1);
step B02, connecting an outlet of the first upper idler wheel cavity cooler (10) with an inlet of a second upper idler wheel cavity cooler (30) through a first upper connecting pipe (2), connecting an outlet of the second upper idler wheel cavity cooler (30) with an inlet of a third upper idler wheel cavity cooler (50) through a second upper connecting pipe (3), connecting an outlet of the third upper idler wheel cavity cooler (50) with an inlet of a fourth upper idler wheel cavity cooler (70) through a third upper connecting pipe (4), and connecting an outlet of the fourth upper idler wheel cavity cooler (70) with a water inlet seat (11) through a fourth upper connecting pipe (5);
and step B03, connecting the outlet of the first lower idler wheel cavity cooler (20) with the inlet of the second lower idler wheel cavity cooler (40) through a first lower connecting pipe (6), connecting the outlet of the second lower idler wheel cavity cooler (40) with the inlet of the third lower idler wheel cavity cooler (60) through a second lower connecting pipe (7), connecting the outlet of the third lower idler wheel cavity cooler (60) with the inlet of the fourth lower idler wheel cavity cooler (80) through a third lower connecting pipe (8), and connecting the outlet of the fourth lower idler wheel cavity cooler (80) with the water inlet seat (11) through a fourth lower connecting pipe (9).
9. The method of claim 5, wherein: the temperature of the cooling water in step 301 is 20-30 ℃.
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| CN112728052B (en) * | 2020-12-23 | 2022-06-17 | 大唐淮北发电厂 | Slurry circulating pump speed reducer oil cooling system |
| CN115773360B (en) * | 2023-02-10 | 2023-04-18 | 西安赫元机械制造有限责任公司 | Coal cutter rocker arm cooler and using method thereof |
| CN117538044B (en) * | 2024-01-09 | 2024-03-12 | 常州市常和机械有限公司 | Water-cooled valve rocker detection device |
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| US9150391B2 (en) * | 2012-03-30 | 2015-10-06 | Harnischfeger Technologies, Inc. | Hoist drive for mining machine |
| CN203098813U (en) * | 2013-01-10 | 2013-07-31 | 上海创力集团股份有限公司 | Low seam coal mining machine rocker arm cooler and cooling system |
| CN203796262U (en) * | 2013-12-20 | 2014-08-27 | 中国神华能源股份有限公司 | Coal cutter rocker arm shell |
| CN206449182U (en) * | 2016-12-28 | 2017-08-29 | 上海创力集团股份有限公司 | A kind of built-in cooling device of rocker arm of coal mining machine and the coal-winning machine comprising the device |
| CN107882557A (en) * | 2017-12-19 | 2018-04-06 | 江苏鸡煤机械制造有限公司 | A kind of stable connection is energy-saving to strengthen coal mining mechanism |
| CN208294885U (en) * | 2018-04-27 | 2018-12-28 | 山东新阳能源有限公司 | Coal mining machine rocker arm height pumps auxiliary coolant system |
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