CN109854726B - Driving device of slot milling machine - Google Patents
Driving device of slot milling machine Download PDFInfo
- Publication number
- CN109854726B CN109854726B CN201910119790.8A CN201910119790A CN109854726B CN 109854726 B CN109854726 B CN 109854726B CN 201910119790 A CN201910119790 A CN 201910119790A CN 109854726 B CN109854726 B CN 109854726B
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- Prior art keywords
- mounting seat
- transmission shaft
- end cover
- milling machine
- driving device
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- 238000003801 milling Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 8
- 239000012208 gear oil Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The invention discloses a driving device of a slot milling machine, which comprises a motor, an upper sealing box and a lower sealing box; the motor is arranged at the upper end of the upper sealing box; the upper sealing box comprises an upper transmission shaft, an upper bearing assembly and an upper mounting seat; the upper bearing assembly is fixedly arranged on the inner side of the upper mounting seat, the upper transmission shaft is arranged on the upper bearing assembly, a first end cover is arranged below the upper mounting seat, and a first sealing assembly is arranged between the first end cover and the upper transmission shaft; the lower sealing box comprises a lower transmission shaft, a lower bearing assembly and a lower mounting seat; the lower bearing assembly is fixedly arranged on the inner side of the lower mounting seat, the lower transmission shaft is arranged on the lower bearing assembly, a second end cover is arranged above the lower mounting seat, a second sealing assembly is arranged between the second end cover and the lower transmission shaft, a rotating shaft of the motor is fixedly connected with the upper transmission shaft, and the upper transmission shaft is connected with the lower transmission shaft.
Description
Technical Field
The invention belongs to the technical field of underground diaphragm wall construction machinery, and particularly relates to a driving device of a slot milling machine.
Background
The double-wheel slot milling machine is a foundation engineering construction machine and has the characteristics of high construction efficiency, deep slot forming depth, high slot forming precision and the like; the two milling wheels are driven by the hydraulic motor to reversely rotate, the stratum is cut and broken, and the maximum grooving depth can reach 150m. Along with the increase of milling depth, the pressure of the motor oil discharge cavity is increased, and the fact that the lip seal is adopted in the common motor oil discharge cavity, and the maximum bearing pressure is 0.3MPa is considered, so that the common motor cannot work normally when the depth is below 30m, aiming at the problem, the motor is usually specially designed at present, the lip seal of the motor oil discharge cavity is replaced by the mechanical seal, and the problem can be solved in the mode, but the purchasing of the motor is difficult due to the special design of the motor, the cost is increased, and the maintenance of the whole device is also difficult after the structure is complex.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a driving device of a slot milling machine, which has a simple structure and is convenient to maintain.
The technical problems to be solved by the invention are realized by the following technical scheme:
a driving device of a slot milling machine comprises a motor, an upper sealing box and a lower sealing box; the motor is arranged at the upper end of the upper sealing box; the upper sealing box comprises an upper transmission shaft, an upper bearing assembly and an upper mounting seat; the upper bearing assembly is fixedly arranged on the inner side of the upper mounting seat, the upper transmission shaft is arranged on the upper bearing assembly, a first end cover is arranged below the upper mounting seat, and a first sealing assembly is arranged between the first end cover and the upper transmission shaft; the lower sealing box comprises a lower transmission shaft, a lower bearing assembly and a lower mounting seat; the lower bearing assembly is fixedly arranged on the inner side of the lower mounting seat, the lower transmission shaft is arranged on the lower bearing assembly, a second end cover is arranged above the lower mounting seat, a second sealing assembly is arranged between the second end cover and the lower transmission shaft, a rotating shaft of the motor is fixedly connected with the upper transmission shaft, and the upper transmission shaft is connected with the lower transmission shaft.
Furthermore, spline connection is adopted between the motor and the upper transmission shaft and between the upper transmission shaft and the lower transmission shaft.
Further, an O-shaped sealing ring is arranged between the first end cover and the upper mounting seat.
Further, a temperature and humidity sensor is arranged on the side wall of the lower mounting seat.
Further, the motor, the upper mounting seat, the end cover, the first sealing component and the upper transmission shaft form a first cavity; an oil drain port is arranged on the side wall of the upper mounting seat, a first bypass hole is further arranged above the upper mounting seat, and the first bypass hole downwards extends from the top of the upper mounting seat to communicate the first cavity with the oil drain port.
Further, the lower mounting seat, the second end cover, the second sealing assembly and the first sealing assembly form a second cavity, a second bypass hole is formed in the lower mounting seat, and the second bypass hole extends upwards from the lower mounting seat to be communicated with the second cavity.
Further, the bottom of the upper transmission shaft is provided with a coding disc, the coding disc is positioned in the second cavity, and the side wall of the lower mounting seat on one side of the coding disc is provided with a rotation speed sensor.
Further, the coding disc is fixedly connected with the bottom of the upper transmission shaft through a set screw or a clamp spring.
Further, the first end cover and the upper mounting seat and the second end cover and the lower mounting seat are fixedly connected through threads.
Further, a detection port is formed in the lower mounting seat.
The beneficial effects are that: compared with the existing special motor, the motor breaks through the foreign technical locking and simultaneously can effectively save the cost of the whole machine; in the working process, the lubricating oil realizes internal circulation, continuously provides lubrication for the upper seal box device, also lubricates and cools the mechanical seal, and prolongs the service life of the mechanical seal; the lower seal box realizes the flow of gear oil under the action of the pump efficiency ring of the transmission shaft, provides cooling and lubrication for the seal assembly and the bearing, and has simpler structural design and more convenient maintenance and installation. The key point is that the two groups of sealing components are respectively arranged on the two transmission shafts, the installation is more convenient, the processing precision requirement of the structural component is reduced, and in the later maintenance, one group of sealing components can be independently detached without damaging the other group of sealing components, thereby reducing the later maintenance cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the upper seal box of the present invention;
FIG. 3 is a schematic view of the structure of the lower seal box of the present invention.
Detailed Description
In order to further describe the technical features and effects of the present invention, the present invention is further described below with reference to the accompanying drawings and detailed description.
As shown in fig. 1-3, a slot milling machine driving device comprises a motor 1, an upper seal box 2 and a lower seal box 3; the motor 1 is arranged at the upper end of the upper sealing box 2; the upper seal box 2 comprises an upper transmission shaft 201, an upper bearing assembly 202 and an upper mounting seat 204; the upper bearing assembly 202 is fixedly arranged on the inner side of the upper mounting seat 204, the upper transmission shaft 201 is arranged on the upper bearing assembly 202, a first end cover 205 is arranged below the upper mounting seat 204, and a first sealing assembly 203 is arranged between the first end cover 205 and the upper transmission shaft 201; the lower seal box 3 comprises a lower transmission shaft 301, a lower bearing assembly 302 and a lower mounting seat 304; the lower bearing assembly 302 is fixedly installed on the inner side of the lower installation seat 304, the lower transmission shaft 301 is installed on the lower bearing assembly 302, the second end cover 305 is arranged above the lower installation seat 304, the second sealing assembly 303 is arranged between the second end cover 305 and the lower transmission shaft 301, the rotating shaft of the motor 1 is fixedly connected with the upper transmission shaft 201, and the upper transmission shaft 201 is connected with the lower transmission shaft 301.
Spline connection is adopted between the motor 1 and the upper transmission shaft 201 and between the upper transmission shaft 201 and the lower transmission shaft 301.
To further ensure tightness, an "O" ring seal is provided between the first end cap 205 and the upper mounting seat 204.
In order to grasp the temperature of the gear oil in real time, a temperature-humidity sensor 307 is provided on the side wall of the lower mount 304.
Further, the motor 1, the upper mounting seat 204, the end cover 205, the first sealing assembly 203 and the upper transmission shaft 201 form a first cavity 208; an oil drain port 207 is formed in the side wall of the upper mounting seat 204, a first bypass hole 209 is further formed above the upper mounting seat 204, and the first bypass hole 209 extends downwards from the top of the upper mounting seat 204 to communicate the first cavity 208 with the oil drain port 207.
The lower mounting seat 304 and the second end cover 305, the second sealing assembly 303 and the first sealing assembly 203 form a second cavity 309, a second bypass hole 308 is formed on the lower mounting seat 304, and the second bypass hole 308 extends upwards from the lower mounting seat 304 to be communicated with the second cavity 309.
In order to grasp the rotation speed of the rotation shaft in real time, a coding disc 206 is arranged at the bottom of the upper transmission shaft 201, the coding disc 206 is positioned in the second cavity 309, and a rotation speed sensor 306 is arranged on the side wall of the lower mounting seat 304 at one side of the coding disc 206.
The coding disc 206 is fixedly connected with the bottom of the upper transmission shaft 201 through a set screw or a clamping spring.
The first end cover 205 and the upper mounting seat 204 and the second end cover 305 and the lower mounting seat 304 are all fixed by threaded connection.
For convenient maintenance, a detection port 310 is formed in the lower mounting seat 304.
During operation, hydraulic oil leaked from the motor 1 enters the first cavity 208, flows through the upper bearing assembly 202 and the first sealing assembly 203, flows out from the oil drain port 207 (which is communicated with an external oil tank through an oil pipe, lubricates and cools the shell of the motor 1 through the first sealing assembly 203 and the upper bearing assembly 202 of the first cavity, and achieves the effect of prolonging service life) which is formed by opening the upper mounting seat 204, so that the damage of the first sealing assembly 203 caused by overlarge pressure in the first cavity 208 can be avoided.
The lower mounting seat 304 is immersed in the gear oil, the motor 1 drives the upper transmission shaft 201 to rotate, and the upper transmission shaft 201 drives the lower transmission shaft 301 to rotate. The lower end of the lower transmission shaft 301 is provided with a pump efficiency ring 311, and a second bypass hole 308 formed in the lower mounting seat 304 is positioned below the second sealing component 303. When the lower transmission shaft 301 rotates, due to the action of the pump efficiency ring 311, the gear oil flows upwards, flows through the lower bearing assembly 302 and the second sealing assembly 303, flows out from the second bypass hole 308 formed in the lower mounting seat 304, and provides continuous lubrication and cooling for the lower bearing assembly 302 and the second sealing assembly 303, so that the service life of the lower transmission shaft is prolonged. The lower mounting seat 304 is provided with a detection port 310 connected with the second cavity 309, so as to detect whether hydraulic oil in the upper seal box 2 and gear oil in the lower seal box 3 enter the second cavity 309. The code wheel 206 is located in the second closed cavity, and the rotation speed of the driving device is measured in real time by the rotation speed transmitter 306, and the measured rotation speed is accurate because the second cavity 309 is free of oil. The temperature and humidity sensor 307 can detect the temperature of the gear oil in the lower seal box 3 in real time and can determine whether the gear oil has water entered.
The above embodiments do not limit the present invention in any way, and all the technical solutions obtained by adopting equivalent substitution or equivalent transformation fall within the protection scope of the present invention.
Claims (9)
1. The driving device of the slot milling machine is characterized by comprising a motor (1), an upper sealing box (2) and a lower sealing box (3); the motor (1) is arranged at the upper end of the upper sealing box (2); the upper sealing box (2) comprises an upper transmission shaft (201), an upper bearing assembly (202) and an upper mounting seat (204); the upper bearing assembly (202) is fixedly arranged on the inner side of the upper mounting seat (204), the upper transmission shaft (201) is arranged on the upper bearing assembly (202), a first end cover (205) is arranged below the upper mounting seat (204), and a first sealing assembly (203) is arranged between the first end cover (205) and the upper transmission shaft (201); the lower sealing box (3) comprises a lower transmission shaft (301), a lower bearing assembly (302) and a lower mounting seat (304); the lower bearing assembly (302) is fixedly arranged on the inner side of the lower mounting seat (304), the lower transmission shaft (301) is arranged on the lower bearing assembly (302), a second end cover (305) is arranged above the lower mounting seat (304), a second sealing assembly (303) is arranged between the second end cover (305) and the lower transmission shaft (301), a rotating shaft of the motor (1) is fixedly connected with the upper transmission shaft (201), and the upper transmission shaft (201) is connected with the lower transmission shaft (301); the lower mounting seat (304) and the second end cover (305), the second sealing component (303) and the first sealing component (203) form a second cavity (309), a second bypass hole (308) is formed in the lower mounting seat (304), and the second bypass hole (308) extends upwards from the lower mounting seat (304) to be communicated with the second cavity (309).
2. The slot milling machine driving device according to claim 1, wherein: spline connection is adopted between the motor (1) and the upper transmission shaft (201) and between the upper transmission shaft (201) and the lower transmission shaft (301).
3. A slot milling machine drive as claimed in claim 1, wherein an O-ring seal is provided between the first end cap (205) and the upper mounting block (204).
4. The slot milling machine driving device according to claim 1, wherein: a temperature and humidity sensor (307) is arranged on the side wall of the lower mounting seat (304).
5. The slot milling machine driving device according to claim 1, wherein the motor (1) and the upper mounting seat (204), the first end cover (205), the first sealing component (203) and the upper transmission shaft (201) form a first cavity (208); an oil drain port (207) is formed in the side wall of the upper mounting seat (204), a first bypass hole (209) is further formed in the upper portion of the upper mounting seat (204), and the first bypass hole (209) extends downwards from the top of the upper mounting seat (204) to communicate the first cavity (208) with the oil drain port (207).
6. The slot milling machine driving device according to claim 1, wherein: the bottom of the upper transmission shaft (201) is provided with a coding disc (206), the coding disc (206) is positioned in the second cavity (309), and the side wall of the lower mounting seat (304) at one side of the coding disc (206) is provided with a rotation speed sensor (306).
7. The slot milling machine driving device according to claim 6, wherein the coding disc (206) is fixedly connected with the bottom of the upper transmission shaft (201) through a set screw or a snap spring.
8. The slot milling machine driving device according to claim 1, wherein the first end cover (205) and the upper mounting seat (204) and the second end cover (305) and the lower mounting seat (304) are fixed through threaded connection.
9. The slot milling machine driving device according to claim 1, wherein the lower mounting seat (304) is provided with a detection opening (310).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119790.8A CN109854726B (en) | 2019-02-18 | 2019-02-18 | Driving device of slot milling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119790.8A CN109854726B (en) | 2019-02-18 | 2019-02-18 | Driving device of slot milling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854726A CN109854726A (en) | 2019-06-07 |
| CN109854726B true CN109854726B (en) | 2024-04-30 |
Family
ID=66898118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910119790.8A Active CN109854726B (en) | 2019-02-18 | 2019-02-18 | Driving device of slot milling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109854726B (en) |
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| CN109854726A (en) | 2019-06-07 |
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