CN218177900U - Gearshift for speed change power head - Google Patents
Gearshift for speed change power head Download PDFInfo
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- CN218177900U CN218177900U CN202222339746.8U CN202222339746U CN218177900U CN 218177900 U CN218177900 U CN 218177900U CN 202222339746 U CN202222339746 U CN 202222339746U CN 218177900 U CN218177900 U CN 218177900U
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- gear
- shifting
- transmission shaft
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- driving device
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Abstract
The utility model relates to the technical field of geological mechanical transmission equipment, in particular to a gear shifting device for a variable speed power head, which comprises a transmission shaft, a gear shifting driving device, an upper gear, a duplicate gear, a shifting fork disc and a lower gear; the upper gear and the lower gear are respectively installed on the upper side and the lower side of the transmission shaft, the duplicate gear is sleeved on the external spline of the transmission shaft, is located between the upper gear and the lower gear and can be meshed with the upper gear or the lower gear, one side of the duplicate gear is connected with the output end of the gear shifting driving device, and the duplicate gear can move up and down along the external spline of the transmission shaft under the driving of the gear shifting driving device. The utility model discloses utilize hydraulic cylinder or cylinder, drive duplicate gear along transmission shaft axial displacement, make its and last gear or lower gear engagement, reach the purpose that different speed ratio gears switch.
Description
Technical Field
The utility model relates to a geological machinery transmission equips technical field, specifically relates to a gearshift for variable speed unit head.
Background
The gear shifting device for the geological mechanical gearbox is mostly used for shifting gears by using a manual shifting fork, the gear shifting precision of the manual shifting fork gear shifting device is often inaccurate, the defects of incomplete meshing of gears, sliding gears and the like exist, the vertical gearbox is not enough in driving force, the manual gear shifting is difficult, and therefore the phenomenon that transmission gears are not enough in gear transmission torque capacity or even damage transmission gears is caused, and therefore the gear shifting device for the variable-speed power head is necessary to be designed to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a overcome the shortcoming that prior art exists, propose to design a gearshift for variable speed unit head, utilize hydraulic cylinder or cylinder drive, realize the accurate positioning, solved vertical gearbox shift the inaccurate and manual gear shift of location problem of driving force not enough.
The utility model provides a technical scheme that its technical problem adopted is:
a gear shifting device for a variable speed power head comprises a transmission shaft, a gear shifting driving device, an upper gear, a duplicate gear, a shifting fork disc and a lower gear; the upper gear and the lower gear are respectively installed on the upper side and the lower side of the transmission shaft, the duplicate gear is sleeved on an external spline of the transmission shaft, is located between the upper gear and the lower gear and can be meshed with the upper gear or the lower gear, one side of the duplicate gear is connected with the output end of the gear shifting driving device, the duplicate gear can move up and down along the external spline of the transmission shaft under the driving of the gear shifting driving device, and can be meshed with the upper gear when the duplicate gear moves upwards and can be meshed with the lower gear when the duplicate gear moves downwards. The structure drives through the gear shifting driving device, and can drive the duplicate gear to move axially along the transmission shaft, so that the duplicate gear is meshed with the inner teeth of the upper gear or the lower gear, and the purpose of gear shifting with different speed ratios is achieved.
Furthermore, one side of the duplicate gear is connected with a shifting fork disc through a bearing, the duplicate gear can rotate relative to the shifting fork disc, and the shifting fork disc is connected with the output end of the gear shifting driving device.
Further, the gear shifting driving device adopts an oil cylinder or an air cylinder.
Furthermore, the transmission shaft, the gear shifting driving device, the upper gear, the duplicate gear, the shifting fork disc and the lower gear are integrated on the vertical gearbox body.
Furthermore, the transmission shaft penetrates through the vertical gearbox body, the upper gear, the duplicate gear, the shifting fork disc and the lower gear are located inside the vertical gearbox body, and the gear shifting driving device is installed at the top or the bottom of the vertical gearbox body.
Further, more than two groups of gear shifting driving devices are arranged.
Furthermore, the gear shifting driving device is controlled by an electromagnetic valve, so that automatic control is easier to realize.
The technical effects of the utility model:
compared with the prior art, the gear shifting device for the variable speed power head of the utility model utilizes the hydraulic oil cylinder or the air cylinder to drive the duplicate gear to move axially along the transmission shaft, so that the duplicate gear is meshed with the upper gear or the lower gear, and the purpose of switching gears with different speed ratios is achieved; meanwhile, the hydraulic oil cylinder or the air cylinder is controlled by the electromagnetic valve, so that automatic control is realized.
Drawings
Fig. 1 is the utility model discloses speed change is gearshift principle schematic diagram for unit head.
In the figure, a transmission shaft 1, a gear shifting oil cylinder 2, a vertical gearbox body 3, an upper gear 4, a duplicate gear 5, a shifting fork plate 6 and a lower gear 7 are arranged.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings of the specification.
The embodiment is as follows:
as shown in fig. 1, the gear shifting device for a variable speed power head according to this embodiment includes a transmission shaft 1, a gear shifting cylinder 2, a vertical gearbox body 3, an upper gear 4, a dual gear 5, a shifting fork disc 6, and a lower gear 7; the transmission shaft 1 runs through in vertical gearbox body 3, it is inside that last gear 4, duplicate gear 5, shift fork dish 6, lower gear 7 are located vertical gearbox body 3, shift cylinder 2 sets up two sets ofly, and its cylinder body is all installed at 3 tops of vertical gearbox body, and all is connected with the solenoid valve, realizes automated control.
An upper gear 4 and a lower gear 7 are respectively installed on the upper side and the lower side of the transmission shaft 1, the duplicate gear 5 is sleeved on an external spline of the transmission shaft 1 and located between the upper gear 4 and the lower gear 7 and can be meshed with the upper gear 4 or the lower gear 7, one side of the duplicate gear 5 is connected with the shifting fork disc 6 through a bearing, the duplicate gear 5 can rotate relative to the shifting fork disc 6, a piston rod of the shifting oil cylinder 2 extends into the vertical gearbox body 3 to be connected with the shifting fork disc 6, the duplicate gear 5 can move up and down along the external spline of the transmission shaft 1 under the driving of the shifting oil cylinder 2, and can be meshed with the upper gear 4 when the duplicate gear 5 moves up and can be meshed with the lower gear 7 when the duplicate gear 5 moves down.
The working principle is as follows: when a piston rod of the gear shifting oil cylinder 2 moves upwards, the shifting fork disc 6 drives the duplicate gear 5 to move upwards along the external spline of the transmission shaft 1 until the external teeth on the upper part of the duplicate gear 5 are meshed with the internal teeth of the upper gear 4, so that the transmission of the gear meshed with the upper gear 4 is realized. The upper gear 4 is then driven directly or indirectly by an external power drive means and transmitted to the propeller shaft 1 via the internal splines of the duplicate gear 5.
When a piston rod of the gear shifting oil cylinder 2 moves downwards, the shifting fork disc 6 drives the duplicate gear 5 to move downwards along the external spline of the transmission shaft 1 until the external teeth at the lower part of the duplicate gear 5 are meshed with the internal teeth of the lower gear 7, so that the transmission of the gear meshed with the lower gear 7 is realized. Then the lower gear 7 is directly or indirectly driven by an external power driving device and is transmitted to the transmission shaft 1 through the internal spline of the duplicate gear 5.
Through the steps, the stroke of the hydraulic oil cylinder is accurately positioned, the purpose of switching gears with different speed ratios is achieved, and meanwhile, the gear shifting oil cylinder 2 is controlled by the electromagnetic valve, so that automatic control is easier to realize.
The above embodiments are only specific ones of the present invention, and the protection scope of the present invention includes but is not limited to the above embodiments, any changes or modifications properly made by those skilled in the art according to the claims of the present invention and the appended claims should fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a gearshift for variable speed unit head which characterized in that: the gear shifting device comprises a transmission shaft, a gear shifting driving device, an upper gear, a duplicate gear, a shifting fork disc and a lower gear; the upper gear and the lower gear are respectively installed on the upper side and the lower side of the transmission shaft, the duplicate gear is sleeved on the external spline of the transmission shaft, is located between the upper gear and the lower gear and can be meshed with the upper gear or the lower gear, one side of the duplicate gear is connected with the output end of the gear shifting driving device, and the duplicate gear can move up and down along the external spline of the transmission shaft under the driving of the gear shifting driving device.
2. The gear shifting apparatus for a variable speed power head according to claim 1, wherein: one side of the duplicate gear is connected with a shifting fork disc through a bearing, and the shifting fork disc is connected with the output end of the gear shifting driving device.
3. The gear shifting apparatus for a variable speed power head according to claim 1, wherein: the gear shifting driving device adopts an oil cylinder or an air cylinder.
4. The shifting apparatus for a variable speed power head according to claim 1, wherein: the transmission shaft, the gear shifting driving device, the upper gear, the duplicate gear, the shifting fork disc and the lower gear are integrated on the vertical gearbox body.
5. The gear shifting apparatus for a variable speed power head according to claim 4, wherein: the transmission shaft penetrates through the vertical gearbox body, the upper gear, the duplicate gear, the shifting fork disc and the lower gear are located inside the vertical gearbox body, and the gear shifting driving device is installed at the top or the bottom of the vertical gearbox body.
6. The gear shifting apparatus for a variable speed power head according to claim 1, wherein: the gear shifting driving devices are arranged in more than two groups.
7. The shifting apparatus for a variable speed power head according to any one of claims 1 to 6, wherein: the gear shifting driving device is controlled by an electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222339746.8U CN218177900U (en) | 2022-09-03 | 2022-09-03 | Gearshift for speed change power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222339746.8U CN218177900U (en) | 2022-09-03 | 2022-09-03 | Gearshift for speed change power head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218177900U true CN218177900U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222339746.8U Active CN218177900U (en) | 2022-09-03 | 2022-09-03 | Gearshift for speed change power head |
Country Status (1)
| Country | Link |
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| CN (1) | CN218177900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116951102A (en) * | 2023-09-13 | 2023-10-27 | 无锡市安曼工程机械有限公司 | Gear shifting device and gear shifting method for mechanical variable-speed power head |
-
2022
- 2022-09-03 CN CN202222339746.8U patent/CN218177900U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116951102A (en) * | 2023-09-13 | 2023-10-27 | 无锡市安曼工程机械有限公司 | Gear shifting device and gear shifting method for mechanical variable-speed power head |
| CN116951102B (en) * | 2023-09-13 | 2024-02-20 | 无锡市安曼工程机械有限公司 | Gear shifting device and gear shifting method for mechanical variable-speed power head |
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