CN102322215A - Power head - Google Patents
Power head Download PDFInfo
- Publication number
- CN102322215A CN102322215A CN201110294973A CN201110294973A CN102322215A CN 102322215 A CN102322215 A CN 102322215A CN 201110294973 A CN201110294973 A CN 201110294973A CN 201110294973 A CN201110294973 A CN 201110294973A CN 102322215 A CN102322215 A CN 102322215A
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- Prior art keywords
- power head
- hub
- wheel hub
- key
- box body
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Abstract
The invention discloses a power head, and relates to the field of machines, in particular to the technical field of the power head of a rotary drilling rig. The power head comprises an input shaft, a driving gear, a rotary support, a hub, a key and an installation box body, wherein the installation box body is coaxially arranged on the outer side of the hub; the key is fixedly connected to the inner side of the hub; the rotary support is coaxially fixed on the hub and is provided with a driven gear; the driving gear is fixedly connected to the input shaft and is meshed with the driven gear; the upper and lower parts of the installation box body are provided with upper and lower oil seal boxes; two framework oil seals are arranged in the upper and lower oil seal boxes; and the outer side of the upper oil seal box is provided with a vibration reduction (VR) dustproof seal. The VR dustproof seal is arranged to prevent mud from damaging an upper oil seal so as not intrude into the box body, so that the service life of the power head is prolonged, and the work of the power head can be ensured at the same time.
Description
Technical field
The present invention relates to mechanical field, particularly the manufacturing technology field of rotary digging drill power head.
Background technology
Existing rotary drilling rig comprises power shaft, driven gear (containing revolution supports), wheel hub, key and the casing etc. of above-mentioned each part is installed; Thereby the splined shaft of power shaft through top is connected with reductor, hydraulic motor and gains impetus; Through being arranged on the driven wheel and said driven gear (containing revolution supports) engagement in the middle of the power shaft, driving the said wheel hub that is connected on the driven gear and working through the said key driving drilling rod that is installed on the wheel hub; In this simultaneously; The box house of installing parts is full of cooling, lubrication oil, and the wheel hub of casing rotation is when stretching out casing relatively, and the upper and lower of casing respectively is provided with an oil sealing box; The twice outside framework oil seal is installed in the following oil sealing box, one outside framework oil seal is installed in the last oil sealing box.The effect of this top single track sealing is bad, and when rotary drilling rig was worked, mud was prone to last sealing is damaged even get into casing, and gear, bearing are caused wearing and tearing, thereby shortened the application life of unit head.
Summary of the invention
The present invention provides a kind of unit head, and purpose is to overcome the unfavorable defective of an available dynamic sealing effectiveness.
The present invention includes power shaft, driven wheel, revolution support, wheel hub, key, installation casing; The coaxial outside that is arranged on said wheel hub of said installation casing, said key is fixedly connected on the inboard of said wheel hub, and coaxial being fixed on the said wheel hub supported in said revolution; On said revolution is supported, the driven gear teeth are set; Said driven wheel is fixedly connected on the said power shaft, and said driven wheel and driven gear teeth meshing are provided with upper and lower oil sealing box respectively in the upper and lower part of said installation casing; In said upper and lower oil sealing box, the twice outside framework oil seal is set respectively, one VR dust seal of arranged outside of oil sealing box on said.
The present invention is except being provided with four road reinforced seals; Four road reinforced seals can prevent component accelerated wear tests such as input, output shaft, gear, bearing; The VR dust seal is used to prevent the last oil sealing of mud damage and invades in the casing; This set prolongs unit head application life, also can guarantee the work of unit head simultaneously.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Among the figure, 1, power shaft, 2, the driven gear teeth, 3, wheel hub, 4, casing is installed, 5, outside framework oil seal, 6, go up the oil sealing box, 7, oil sealing box down, 8, the VR dust seal, 9, driven wheel, 10, revolution supports, 11, key.
The specific embodiment
As shown in Figure 1, this unit head comprises power shaft 1, driven wheel 9, revolution support 10, wheel hub 3, key 11, casing 4 is installed; The casing 4 coaxial outsides that are arranged on wheel hub 3 are installed, and key 11 is fixedly connected on the inboard of wheel hub 3, and 10 coaxial being fixed on the wheel hub 3 are supported in revolution; In revolution support 10, the driven gear teeth 2 are set; Driven wheel 9 is fixedly connected on the power shaft 1, and driven wheel 9 and the driven gear teeth 2 engagements are provided with upper and lower oil sealing box 6,7 respectively in the upper and lower part that casing 4 is installed; In said upper and lower oil sealing box 6,7, twice outside framework oil seal 5 is set respectively, at one VR dust seal 8 of arranged outside of last oil sealing box 6.
Claims (1)
1. unit head comprises power shaft, driven wheel, revolution support, wheel hub, key, installation casing, the coaxial outside that is arranged on said wheel hub of said installation casing; Said key is fixedly connected on the inboard of said wheel hub; Coaxial being fixed on the said wheel hub supported in said revolution, on said revolution is supported, the driven gear teeth is set, and said driven wheel is fixedly connected on the said power shaft; Said driven wheel and driven gear teeth meshing; In the upper and lower part of said installation casing upper and lower oil sealing box is set respectively, in said upper and lower oil sealing box, the twice outside framework oil seal is set respectively, it is characterized in that one VR dust seal of arranged outside of oil sealing box on said.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110294973A CN102322215A (en) | 2011-09-28 | 2011-09-28 | Power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110294973A CN102322215A (en) | 2011-09-28 | 2011-09-28 | Power head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102322215A true CN102322215A (en) | 2012-01-18 |
Family
ID=45450034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110294973A Pending CN102322215A (en) | 2011-09-28 | 2011-09-28 | Power head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102322215A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853083A (en) * | 2012-09-25 | 2013-01-02 | 福田雷沃国际重工股份有限公司 | Mud-prevention sealing device of power head |
| CN102878274A (en) * | 2012-09-28 | 2013-01-16 | 三一重工股份有限公司 | Rotary drilling rig and sealing device of power head case of rotary drilling rig |
| CN102979453A (en) * | 2012-11-26 | 2013-03-20 | 上海中联重科桩工机械有限公司 | Power head pressure plate and power head type drilling equipment with same |
-
2011
- 2011-09-28 CN CN201110294973A patent/CN102322215A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853083A (en) * | 2012-09-25 | 2013-01-02 | 福田雷沃国际重工股份有限公司 | Mud-prevention sealing device of power head |
| CN102853083B (en) * | 2012-09-25 | 2015-07-15 | 福田雷沃国际重工股份有限公司 | Mud-prevention sealing device of power head |
| CN102878274A (en) * | 2012-09-28 | 2013-01-16 | 三一重工股份有限公司 | Rotary drilling rig and sealing device of power head case of rotary drilling rig |
| CN102878274B (en) * | 2012-09-28 | 2015-08-12 | 三一重工股份有限公司 | The seal arrangement of rotary drilling rig and power head box thereof |
| CN102979453A (en) * | 2012-11-26 | 2013-03-20 | 上海中联重科桩工机械有限公司 | Power head pressure plate and power head type drilling equipment with same |
| CN102979453B (en) * | 2012-11-26 | 2015-06-03 | 上海中联重科桩工机械有限公司 | Power head pressure plate and power head type drilling equipment with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120118 |