CN2197458Y - Ratchet monodirection rotating mechanism of jackdrill - Google Patents
Ratchet monodirection rotating mechanism of jackdrill Download PDFInfo
- Publication number
- CN2197458Y CN2197458Y CN 94210798 CN94210798U CN2197458Y CN 2197458 Y CN2197458 Y CN 2197458Y CN 94210798 CN94210798 CN 94210798 CN 94210798 U CN94210798 U CN 94210798U CN 2197458 Y CN2197458 Y CN 2197458Y
- Authority
- CN
- China
- Prior art keywords
- ratchet wheel
- ratchet
- guide pillar
- cylindrical spring
- rotating mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model discloses a ratchet monodirection rotating mechanism of jackdrill, which is composed of an internal ratchet wheel, a ratchet wheel claw, a spiral stick, a guide pillar, and a cylindrical spring. The guide pillar and the cylindrical spring are arranged on the spiral stick. The screw stick has two symmetrical holes on which the guide pillar and the cylindrical spring are arranged. The ball head of the guide pillar props up to the ratchet wheel claw. By means of the action of the cylindrical spring, the ratchet wheel claw and the teeth of the internal ratchet wheel are connected to achieve the goal of the spiral stick one-way rotation. The utility model has the advantages of simple structure, easy fabrication, and stable operation.
Description
The utility model relates to the unidirectional rotating mechanism of a kind of hammer drill inner ratchet wheel type, particularly a kind of unidirectional rotating mechanism of being made up of handle ratchet wheel, ratchet and rifle bar of hammer drill inner ratchet wheel type.
Hammer drill needs to reach the rock drilling purpose by the unidirectional rotation of rifle bar when work, the unidirectional rotating mechanism of normal at present employing inner ratchet wheel type is finished, this mechanism is made up of handle ratchet wheel, ratchet pawl, rifle bar and the turriform spring that is contained on the rifle bar, utilizes the turriform spring to make ratchet pawl and handle ratchet wheel keep in touch the unidirectional rotation that realizes rifle bar.The turriform spring is formed by the flaky elastic material coiling, fatigue strength is lower, and the power that ratchet passes to the turriform spring also has certain percussion except that size and direction all change, and the transmission of power is also inhomogeneous, can make and produce certain friction between the lamella of turriform spring, therefore the turriform spring is more easy to wear, often needs to change.
Task of the present utility model provides the unidirectional rotating mechanism of a kind of hammer drill inner ratchet wheel type, particularly a kind of unidirectional rotating mechanism of being made up of handle ratchet wheel, ratchet pawl and rifle bar of hammer drill inner ratchet wheel type.
Task of the present utility model is by replacing the turriform spring to realize with cylindrical spring and guide pillar, promptly remove the turriform spring, cylindrical spring and guide pillar are loaded onto in the position of former installation turriform spring on rifle bar, ratchet pawl contacts with the ball head branch of guide pillar, effect by guide pillar, it is constant and continuously and evenly to make ratchet pawl pass to the force direction of cylindrical spring, thereby reaches the purpose that prolongs spring life.
Below in conjunction with an accompanying drawing and an embodiment shown in the drawings utility model is further described, but the content of utility model is not limited thereto.
Be the unidirectional rotating mechanism of hammer drill inner ratchet wheel type shown in the accompanying drawing.As shown in the figure, (1) is rifle bar, be drilled with two holes on it symmetrically, cylindrical spring (2) and guide pillar (3) are housed in the hole, the bulb of guide pillar (3) withstands on the ratchet (4), one end of ratchet (4) is contained on the rifle bar (1), the other end can touch with the toe joint of handle ratchet wheel (5), in order to control rifle bar (1) rotation with stop, handle ratchet wheel (5) then is fixed on the hammer drill, during hammer drill work, when rifle bar (1) when being subjected to anticlockwise torsional interaction, the effect compressing guide pillar (3) that ratchet (4) is subjected to handle ratchet wheel (5) to go up tooth makes cylindrical spring (2) compression, and rifle bar (1) can rotate in handle ratchet wheel (5), when rifle bar (1) when being subjected to clockwise torsional interaction, the cylindrical spring that resets (2) promotes guide pillar (3) makes ratchet (4) withstand tooth on the handle ratchet wheel (5), rifle bar then stops operating, and therefore, just can reach the purpose that makes the unidirectional rotation of rifle bar (1) under the moment of torsion continuous action of positive and negative alternate.
Because by the guide pillar transmission, and the relative motion between the bulb of ratchet pawl and guide pillar is level and smooth to ratchet to power that cylindrical spring acted on, thus the pressure that bears of cylindrical spring be even and direction consistent, so spring is not fragile.
The utility model is simple in structure, and is easily manufactured, and working stability is reliable.
Claims (1)
- A kind of unidirectional rotating mechanism of being made up of handle ratchet wheel, ratchet pawl and rifle bar of hammer drill inner ratchet wheel type is characterized in that being drilled with two holes symmetrically on rifle bar, and cylindrical spring and guide pillar are housed in the hole, and the bulb of guide pillar withstands on the ratchet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94210798 CN2197458Y (en) | 1994-05-13 | 1994-05-13 | Ratchet monodirection rotating mechanism of jackdrill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94210798 CN2197458Y (en) | 1994-05-13 | 1994-05-13 | Ratchet monodirection rotating mechanism of jackdrill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2197458Y true CN2197458Y (en) | 1995-05-17 |
Family
ID=33828108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94210798 Expired - Fee Related CN2197458Y (en) | 1994-05-13 | 1994-05-13 | Ratchet monodirection rotating mechanism of jackdrill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2197458Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661788A (en) * | 2020-06-12 | 2020-09-15 | 嘉兴昂司派新能源有限公司 | Auxiliary device capable of freely adjusting angle during maintenance of power equipment |
| CN113550858A (en) * | 2021-06-21 | 2021-10-26 | 东营威科特瑞电镀环保设备有限公司 | Wave power generation device |
-
1994
- 1994-05-13 CN CN 94210798 patent/CN2197458Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661788A (en) * | 2020-06-12 | 2020-09-15 | 嘉兴昂司派新能源有限公司 | Auxiliary device capable of freely adjusting angle during maintenance of power equipment |
| CN113550858A (en) * | 2021-06-21 | 2021-10-26 | 东营威科特瑞电镀环保设备有限公司 | Wave power generation device |
| CN113550858B (en) * | 2021-06-21 | 2023-11-24 | 上海艾能电力工程有限公司 | Wave power generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |