CN209925576U - Slot milling machine driving device - Google Patents
Slot milling machine driving device Download PDFInfo
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- CN209925576U CN209925576U CN201920206076.8U CN201920206076U CN209925576U CN 209925576 U CN209925576 U CN 209925576U CN 201920206076 U CN201920206076 U CN 201920206076U CN 209925576 U CN209925576 U CN 209925576U
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- transmission shaft
- mounting seat
- milling machine
- bearing assembly
- slot milling
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Abstract
The utility model discloses a slot milling machine driving device, which comprises a motor, an upper seal box and a lower seal box; the motor is arranged at the upper end of the upper seal 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 seal box comprises a lower transmission shaft, a lower bearing assembly and a lower mounting seat; lower bearing assembly fixed mounting is inboard at mount pad down, and lower transmission shaft installs under on the bearing assembly, and the top of mount pad is equipped with the second end cover under, is equipped with second seal assembly between second end cover and lower transmission shaft, and the pivot and the last transmission shaft fixed connection of motor go up the transmission shaft and are connected with lower transmission shaft, the utility model discloses simple structure, easy maintenance.
Description
Technical Field
The invention belongs to the technical field of underground diaphragm wall construction machinery, and particularly relates to a slot milling machine driving device.
Background
The double-wheel slot milling machine is foundation engineering construction machinery and has the characteristics of high construction efficiency, deep slot forming depth, high slot forming precision and the like; the hydraulic motor drives the two milling wheels to rotate reversely, so that the stratum is cut and crushed, and the maximum grooving depth can reach 150 m. The pressure of the oil drainage cavity of the motor is increased along with the increase of the milling depth, the oil drainage cavity of the common motor is sealed by a lip shape, and the maximum pressure bearing is 0.3MPa, so that the common motor cannot normally work when the oil drainage cavity is below 30m in depth.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a slot milling machine driving device which is simple in structure and convenient to maintain.
The technical problem to be solved by the invention is realized by the following technical scheme:
a slot milling machine driving device comprises a motor, an upper seal box and a lower seal box; the motor is arranged at the upper end of the upper seal 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 seal 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, the second end cover is arranged above the lower mounting seat, the second sealing assembly is arranged between the second end cover and the lower transmission shaft, the 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, the motor and the upper transmission shaft as well as the upper transmission shaft and the lower transmission shaft are connected by splines.
Furthermore, an O-shaped sealing ring is arranged between the first end cover and the upper mounting seat.
Furthermore, a temperature and humidity sensor is arranged on the side wall of the lower mounting seat.
Further, the motor, the upper mounting seat, the first end cover, the first sealing assembly and the upper transmission shaft form a first cavity; be equipped with the oil discharge outlet on last mount pad lateral wall, still be equipped with first by-pass hole above last mount pad, first by-pass hole is from last mount pad top downwardly extending with first cavity and oil discharge outlet intercommunication.
Furthermore, 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.
Furthermore, the bottom of the upper transmission shaft is provided with an encoding disc, the encoding disc is positioned in the second cavity, and the side wall of the lower mounting seat on one side of the encoding disc is provided with a rotating speed sensor.
Furthermore, the coding disc is fixedly connected with the bottom of the upper transmission shaft through a set screw or a clamp spring.
Furthermore, the first end cover and the upper mounting seat and the second end cover and the lower mounting seat are fixedly connected through threads.
Furthermore, a detection port is formed in the lower mounting seat.
Has the advantages that: compared with the existing special motor, the lock of foreign technology is broken through, and the cost of the whole motor can be effectively saved; in the working process, the lubricating oil realizes internal circulation, so that the lubricating oil continuously provides lubrication for the upper seal box device and also lubricates and cools the mechanical seal, and the service life of the mechanical seal is prolonged; the lower seal box realizes the flow of gear oil under the action of the pump effect ring of the transmission shaft, and provides cooling and lubrication for the seal assembly and the bearing, and the drive unit is simpler in structural design and more convenient to maintain and install. The key point is that two sets of sealing components are respectively arranged on two transmission shafts, the installation is more convenient, the requirement on the processing precision of the structural member is reduced, a certain set of sealing can be independently disassembled in later maintenance, and the other set of sealing is not damaged, so that the later maintenance cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an upper seal box according to the present invention;
fig. 3 is a schematic structural view of a lower seal box according to the present invention.
Detailed Description
To further describe the technical features and effects of the present invention, the present invention will be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1 to 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 seal 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 an 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 arranged at the inner side of the lower mounting base 304, the lower transmission shaft 301 is arranged on the lower bearing assembly 302, the second end cover 305 is arranged above the lower mounting base 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.
The motor 1 and the upper transmission shaft 201 and the lower transmission shaft 301 are connected by splines.
To further ensure sealing, an "O" ring seal is provided between the first end cap 205 and the upper mount 204.
In order to know the temperature of the gear oil in real time, a temperature and humidity sensor 307 is arranged on the side wall of the lower mounting seat 304.
Further, the motor 1, the upper mounting base 204, the first end cap 205, the first sealing assembly 203 and the upper transmission shaft 201 form a first cavity 208; an oil discharge 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 discharge port 207.
The lower mounting base 304, the second end cap 305, the second sealing assembly 303 and the first sealing assembly 203 form a second cavity 309, a second bypass hole 308 is formed in the lower mounting base 304, and the second bypass hole 308 extends upward from the lower mounting base 304 to communicate with the second cavity 309.
In order to know the rotating speed of the rotating shaft in real time, the bottom of the upper transmission shaft 201 is provided with an encoding disc 206, the encoding disc 206 is positioned in the second cavity 309, and the side wall of the lower mounting seat 304 at one side of the encoding disc 206 is provided with a rotating speed sensor 306.
The coding disc 206 is fixedly connected with the bottom of the upper transmission shaft 201 through a set screw or a clamp spring.
The first end cap 205 and the upper mounting base 204 and the second end cap 305 and the lower mounting base 304 are fixed by screw connection.
For the convenience of maintenance, the lower mounting base 304 is provided with a detection port 310.
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, and flows out through an oil discharge port 207 formed in the upper mounting seat 204 (the oil discharge port is communicated with an external oil tank through an oil pipe, and oil discharged from the shell of the motor 1 passes through the first sealing assembly 203 and the upper bearing assembly 202 of the first cavity to lubricate and cool the first sealing assembly 203 and the upper bearing assembly 202, so that the service life is prolonged), and the damage of the first sealing assembly 203 caused by excessive pressure in the first cavity 208 can be avoided.
The lower mounting base 304 is soaked in 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 pumping ring 311, and a second bypass hole 308 formed in the lower mounting seat 304 is positioned below the second sealing assembly 303. When the lower transmission shaft 301 rotates, the gear oil flows upward under the action of the pumping ring 311, flows through the lower bearing assembly 302 and the second sealing assembly 303, and flows out through the second bypass hole 308 formed in the lower mounting seat 304, so as to provide continuous lubrication and cooling effects for the lower bearing assembly 302 and the second sealing assembly 303, thereby prolonging the service life of the lower bearing assembly 302 and the second sealing assembly 303. The lower mounting seat 304 is provided with a detection port 310 connected to the second cavity 309, so as to detect whether the hydraulic oil in the upper seal box 2 and the gear oil in the lower seal box 3 enter the second cavity 309. The encoder disk 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 since there is no oil in the second cavity 309, the measured rotation speed is more accurate. 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 judge whether water enters the gear oil.
The above embodiments do not limit the present invention in any way, and all technical solutions obtained by taking equivalent substitutions or equivalent changes fall within the scope of the present invention.
Claims (10)
1. A slot milling machine driving device is characterized by comprising 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 an 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); lower bearing assembly (302) fixed mounting is inboard at lower mount pad (304), and lower transmission shaft (301) are installed on lower bearing assembly (302), are equipped with second end cover (305) in the top of lower mount pad (304), are equipped with second seal assembly (303) between second end cover (305) and lower transmission shaft (301), and the pivot and the last transmission shaft (201) fixed connection of motor (1), and last transmission shaft (201) are connected with lower transmission shaft (301).
2. A slot milling machine drive as claimed in claim 1, wherein: the motor (1) is connected with the upper transmission shaft (201) through splines, and the upper transmission shaft (201) is connected with the lower transmission shaft (301) through splines.
3. A slot milling machine drive as claimed in claim 1, characterised in that an "O" ring seal is provided between the first end cap (205) and the upper mounting block (204).
4. A slot milling machine drive as claimed in claim 1, wherein: a temperature and humidity sensor (307) is arranged on the side wall of the lower mounting seat (304).
5. A slot milling machine driving device as claimed in claim 1, characterized in that the motor (1) forms a first cavity (208) with the upper mounting seat (204), the first end cap (205), the first sealing assembly (203) and the upper transmission shaft (201); be equipped with oil discharge opening (207) on last mount pad (204) lateral wall, still be equipped with first bypass hole (209) above last mount pad (204), first bypass hole (209) are from last mount pad (204) top downwardly extending with first cavity (208) and oil discharge opening (207) intercommunication.
6. A slot milling machine drive as claimed in claim 1, wherein: the lower mounting seat (304), 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 in the lower mounting seat (304), and the second bypass hole (308) extends upwards from the lower mounting seat (304) and is communicated with the second cavity (309).
7. A slot milling machine drive as claimed in claim 6, wherein: the bottom of the upper transmission shaft (201) is provided with an encoding disc (206), the encoding disc (206) is positioned in the second cavity (309), and the side wall of the lower mounting seat (304) on one side of the encoding disc (206) is provided with a rotating speed sensor (306).
8. A slot milling machine drive as claimed in claim 7, characterised in that the encoder disc (206) is fixedly connected to the bottom of the upper drive shaft (201) by means of a set screw or a circlip.
9. A slot milling machine drive as claimed in claim 1, characterised in that the first end cap (205) and the upper mounting block (204) and the second end cap (305) and the lower mounting block (304) are secured by a screw connection.
10. A slot milling machine drive as claimed in claim 1, characterised in that a detection opening (310) is provided in the lower mounting block (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920206076.8U CN209925576U (en) | 2019-02-18 | 2019-02-18 | Slot milling machine driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920206076.8U CN209925576U (en) | 2019-02-18 | 2019-02-18 | Slot milling machine driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209925576U true CN209925576U (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920206076.8U Active CN209925576U (en) | 2019-02-18 | 2019-02-18 | Slot milling machine driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209925576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854726A (en) * | 2019-02-18 | 2019-06-07 | 江苏徐工工程机械研究院有限公司 | A kind of groove milling machine actuating device |
-
2019
- 2019-02-18 CN CN201920206076.8U patent/CN209925576U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854726A (en) * | 2019-02-18 | 2019-06-07 | 江苏徐工工程机械研究院有限公司 | A kind of groove milling machine actuating device |
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