CN102913123A - Wedge key bar for power head and power head - Google Patents
Wedge key bar for power head and power head Download PDFInfo
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- CN102913123A CN102913123A CN2012104319676A CN201210431967A CN102913123A CN 102913123 A CN102913123 A CN 102913123A CN 2012104319676 A CN2012104319676 A CN 2012104319676A CN 201210431967 A CN201210431967 A CN 201210431967A CN 102913123 A CN102913123 A CN 102913123A
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- wedge
- key bar
- power head
- key
- bar
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Abstract
The invention relates to the technical field of a power output device of piling machinery, in particular to a wedge key bar for a power head and a power head, and the wedge key bar consists of an outer key sleeve body, a flange plate, a wedge inner key bar and a fixed bolt, wherein the flange plate is fixed on one end of the outer key sleeve body, the wedge inner key bar is fixed inside the outer key sleeve body, the part of the outer key sleeve body, which is used for holding the wedge inner key bar, is of a wedge shape, and the part of the wedge inner key bar, which is matched with the outer key sleeve body, is of a wedge shape. The inner key bar is fixed on the outer key sleeve body through a screw. When the stress pressure is increased, the entire power head is uniformly stressed, the bolt is free from being influenced by the shearing force, the service life of the power head is long, and convenience in replacement can be achieved.
Description
Technical field
The present invention relates to the power take-off technical field of piling machinery, especially a kind of wedge key bar and unit head for unit head.
Background technology
Unit head is as the power take-off of a kind of power take-off of machinery, particularly piling machinery, its contact with drilling tool transmitting torque key cover or key bar be to need often to change because of wearing and tearing.
But existing unit head contacts the structure of output torque and mainly contains two kinds with drilling tool: a kind ofly be, fixing key cover is connected with alignment pin and the bolt of unit head internal key cover by locating flange, in the pressurization drilling process, mainly utilize alignment pin and bolt to come transmitting torque and utilize bolt to bear plus-pressure, the main bearing tension of bolt and shearing cause bolt to be easy to become flexible or cut off; And this key cover dismounting difficulty, length consuming time has reduced operating efficiency.Another kind is that dismountable key bar is bolted in the parallel slot of internal key cover, during transmitting torque, utilize the contact site transmitting torque of key bar and internal key cover, during pressurization, mainly utilize bolt to come bearing thrust, cause bolt to be subject to shearing and loosening even fracture.
Summary of the invention
In order to overcome the deficiency of existing technology, the invention provides a kind of wedge key bar and unit head for unit head.
The technical solution adopted for the present invention to solve the technical problems is: a kind of wedge key bar and unit head for unit head, comprise that external key body, flanged plate, wedge shape internal key bar and set bolt thereof form, flanged plate is fixed on external key body one end, it is inner that wedge shape internal key bar is fixed on the external key body, the part of assembling wedge shape internal key bar is wedge shape in the described external key body, and the part that wedge shape internal key bar cooperates with the external key body is wedge shape.
According to another embodiment of the invention, comprise that further described internal key bar is fixed by screws on the external key body.
The invention has the beneficial effects as follows that when bearing plus-pressure, whole unit head is stressed, bolt is not affected by shearing force, the dynamic cutter head high life, and it is convenient to change.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention;
Fig. 2 is wedge structure schematic diagram of the present invention;
Among the figure, 1, the external key body, 2, flanged plate, 3, wedge shape internal key bar, 4, screw.
The specific embodiment
Structural representation of the present invention such as Fig. 1, a kind of wedge key bar and unit head for unit head, comprise that external key body 1, flanged plate 2, wedge shape internal key bar 3 and set bolt thereof form, flanged plate 2 is fixed on external key body 1 one ends, wedge shape internal key bar 3 is fixed on external key body 1 inside, it is characterized in that the part of 1 li assembling of described external key body wedge shape internal key bar 3 is wedge shape, the part that cooperates with external key body 1 on the wedge shape internal key bar 3 is wedge shape.
Wedge shape internal key bar 3 is fixed on the external key body 1 by screw 4.
In the pressurization drilling process, plus-pressure is delivered to the wall of wedge shape contact, and final plus-pressure is delivered on the whole unit head by external key body 1 and flanged plate 2.When bearing plus-pressure, whole unit head is stressed, and bolt is not affected by shearing force.
The invention provides a kind of simple in structure, connect key sleeve of power head and unit head thereof reliable, that be convenient to safeguard replacing, it has overcome the shortcoming of original key sleeve of power head, has effectively promoted the application life of unit head and component thereof.
Claims (2)
1. wedge key bar and unit head that is used for unit head, comprise that external key body (1), flanged plate (2), wedge shape internal key bar (3) and set bolt thereof form, flanged plate (2) is fixed on external key body (1) one end, wedge shape internal key bar (3) is fixed on external key body (1) inside, it is characterized in that, the part of described external key body (1) inner assembling wedge shape internal key bar (3) is wedge shape, and the upper part that cooperates with external key body (1) of wedge shape internal key bar (3) is wedge shape.
2. wedge key bar and unit head for unit head according to claim 1 is characterized in that, described wedge shape internal key bar (3) is fixed on the external key body (1) by screw (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104319676A CN102913123A (en) | 2012-11-02 | 2012-11-02 | Wedge key bar for power head and power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104319676A CN102913123A (en) | 2012-11-02 | 2012-11-02 | Wedge key bar for power head and power head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102913123A true CN102913123A (en) | 2013-02-06 |
Family
ID=47611667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104319676A Pending CN102913123A (en) | 2012-11-02 | 2012-11-02 | Wedge key bar for power head and power head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102913123A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB465145A (en) * | 1935-11-02 | 1937-05-03 | John Sydney Whittaker | Improvements in or relating to the pin-coupled members of dredging, elevating, conveying and like apparatus |
| DE2706940A1 (en) * | 1977-02-18 | 1978-08-31 | Celler Maschf Geb | Hydraulic drilling head coupling - using two wedge keys applied by power ram mould ball bearing |
| JPH10280852A (en) * | 1997-04-02 | 1998-10-20 | Nippon Sharyo Seizo Kaisha Ltd | Auger driving device |
| CN201056981Y (en) * | 2007-07-09 | 2008-05-07 | 北京市三一重机有限公司 | Power head key sleeve |
| CN201802307U (en) * | 2010-09-03 | 2011-04-20 | 北京市三一重机有限公司 | Rotary drilling rig and power head transmission device thereof |
| CN202249749U (en) * | 2011-09-28 | 2012-05-30 | 高邮市恒辉机械有限公司 | Rotary support and driven gear integrated power head |
| CN202273585U (en) * | 2011-10-11 | 2012-06-13 | 河南卫华重型机械股份有限公司 | Unit head of full screw earth auger |
| CN202484203U (en) * | 2011-11-25 | 2012-10-10 | 湖北三江航天红峰控制有限公司 | Coaxial double-end output reducing mechanism |
| CN203050489U (en) * | 2012-11-02 | 2013-07-10 | 玉柴桩工(常州)有限公司 | Wedge-shaped key bar for power head |
-
2012
- 2012-11-02 CN CN2012104319676A patent/CN102913123A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB465145A (en) * | 1935-11-02 | 1937-05-03 | John Sydney Whittaker | Improvements in or relating to the pin-coupled members of dredging, elevating, conveying and like apparatus |
| DE2706940A1 (en) * | 1977-02-18 | 1978-08-31 | Celler Maschf Geb | Hydraulic drilling head coupling - using two wedge keys applied by power ram mould ball bearing |
| JPH10280852A (en) * | 1997-04-02 | 1998-10-20 | Nippon Sharyo Seizo Kaisha Ltd | Auger driving device |
| CN201056981Y (en) * | 2007-07-09 | 2008-05-07 | 北京市三一重机有限公司 | Power head key sleeve |
| CN201802307U (en) * | 2010-09-03 | 2011-04-20 | 北京市三一重机有限公司 | Rotary drilling rig and power head transmission device thereof |
| CN202249749U (en) * | 2011-09-28 | 2012-05-30 | 高邮市恒辉机械有限公司 | Rotary support and driven gear integrated power head |
| CN202273585U (en) * | 2011-10-11 | 2012-06-13 | 河南卫华重型机械股份有限公司 | Unit head of full screw earth auger |
| CN202484203U (en) * | 2011-11-25 | 2012-10-10 | 湖北三江航天红峰控制有限公司 | Coaxial double-end output reducing mechanism |
| CN203050489U (en) * | 2012-11-02 | 2013-07-10 | 玉柴桩工(常州)有限公司 | Wedge-shaped key bar for power head |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |