CN203611189U - Single-block impact device of pneumatic wrench - Google Patents
Single-block impact device of pneumatic wrench Download PDFInfo
- Publication number
- CN203611189U CN203611189U CN201320841748.5U CN201320841748U CN203611189U CN 203611189 U CN203611189 U CN 203611189U CN 201320841748 U CN201320841748 U CN 201320841748U CN 203611189 U CN203611189 U CN 203611189U
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- CN
- China
- Prior art keywords
- impact
- bracket
- block
- inner cavity
- groove
- 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 - Lifetime
Links
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000009527 percussion Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000004519 grease Substances 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Percussive Tools And Related Accessories (AREA)
Abstract
The utility model discloses a single-block impact device of a pneumatic wrench. The single-block impact device is characterized in that a sealing inner cavity of an impact bracket is connected with at least one impact block which is in drive connection with a wrench shaft. Swing protrusions and locating protrusions arranged on the outer surface of the impact block in an up-and-down mode are correspondingly arranged in a swing groove and a locating groove formed in the surface of the inner cavity of the impact bracket in an up-and-down mode. Compared with the prior art, lubricating grease in the inner cavity of the impact bracket can be effectively sealed and prevented from leaking outwards and overflowing, normal lubrication between the impact bracket and transmission parts connected with the inner cavity of the impact bracket is guaranteed, and the service life of the impact device of the pneumatic wrench is prolonged obviously; stress generated from impact and vibration in the working process is evenly distributed along the regular impact bracket in the circumference direction, cracks and breakage of the impact bracket are reduced, and the use cost of a user is obviously lowered.
Description
(1) technical field: the utility model relates to gas plate machine parts; Be specifically related to a kind of gas plate machine monolithic percussion mechanism.
(2) background technology: the impact part that in prior art, pneumatic wrench is used is normally connected with impact block and connects and composes by pulling axle on unlimited impact support.Its Shortcomings: the one, the lubricant grease that described unlimited impact support is built-in with, in long working environment, very easily overflow to outward leakage, cannot guarantee normal working lubrication, aggravate to impact the wearing and tearing of support and connection for transmission part, the service life of obviously having reduced impact part; The 2nd, the vibration that repeatedly withstands shocks under working environment badly of described impact part, very easily makes the irregular impact support of body produce stress and concentrates, and makes its weak part crack fragmentation, has obviously increased user's use cost.
(3) summary of the invention: the deficiency existing for above-mentioned prior art, the purpose of this utility model is to provide a kind of gas plate machine monolithic percussion mechanism, is intended to realize the use cost that improves its service life and reduce user.
The technical solution of the utility model is achieved in that this gas plate machine monolithic percussion mechanism, and it is to be at least connected with an impact block and to pull axle driving at the closed cavity that impacts support to join; Described impact block outer surface is upper and lower be equipped with wave projection, positioning convex, correspondence is placed in impacts upper and lower the waving in groove, detent of being provided with in rack bore surface.
While implementing technique scheme, the closed cavity that the utility model is chosen in impact support is connected with two impact blocks; Described two impact blocks are relatively to turn to 180 degree and pull axle driving to join.
The utility model is taked said structure, in work, by being placed in the impact block that impacts support closed cavity, and described impact block outer surface upper and lower be provided with wave projection, positioning convex, correspondence is placed in upper and lower the waving to do to swing in groove, detent and connecting of being provided with in circular impact rack bore surface.Compared with the existing technology, effectively seal up to be placed in and impact the lubricant grease of rack bore and overflow to outward leakage, guaranteed to impact the normal working lubrication of support and its inner chamber connection for transmission part, the service life of having improved significantly pneumatic wrench percussion mechanism; The stress that in work, impact shock produces is uniformly distributed along the impact support circumferencial direction of body rule, has reduced the crackle fragmentation of impacting support, has reduced significantly user's use cost.
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.
(4) accompanying drawing explanation:
Fig. 1 is the cutaway view of a kind of embodiment of the utility model;
Fig. 2 be in Fig. 1 A-A to impacting the profile of support;
Fig. 3 is the impact block view to section with reference to A-A in figure 1;
Fig. 4 be in Fig. 1 impact block with pull axle 1 and engage the A-A being connected to cutaway view;
Fig. 5 be in Fig. 1 impact block with pull axle 1 and depart from the A-A being connected to cutaway view.
(5) specific embodiment: embodiment mono-, shown in Fig. 1-Fig. 5.This gas plate machine monolithic percussion mechanism, according to the requirement of the different output torques of pneumatic wrench, it is to be connected with an impact block and to pull axle 1 driving at the closed cavity that impacts support to join; Described impact block outer surface is upper and lower be equipped with wave projection 4, positioning convex 5 (shown in Fig. 3), correspondence is placed in impacts upper and lower the waving in groove 2, detent 3 (shown in Fig. 2-Fig. 4) of being provided with in rack bore surface.Described wave groove 2 and detent 3 is arc groove (shown in Fig. 2); Described wave projection 4 and positioning convex 5 is arc convex (shown in Fig. 3).Adopt monolithic percussion mechanism, be generally used for connecting the gas plate machine (shown in Fig. 1) that output torque is little.
Embodiment bis-, the present embodiment is with the difference of embodiment mono-: be connected with two impact blocks at the closed cavity that impacts support; Described two impact blocks are relatively to turn to 180 degree and pull axle 1 to drive join (not shown, shown in figure 1-Fig. 5).Adopt two piece percussion mechanisms, be generally used for connecting the gas plate machine that output torque is large.
When use, the splined hole of the utility model circular impact support link is connected (shown in Fig. 1) with the rotor of air motor, pulls the outer end of axle 1 and pull cover to join.
Work original state, owing to pulling cover and nut or bolt, to rotate screw-down torque less, be placed in and wave projection 4 on the impact block of circular impact rack bore, take the positioning convex 5 on impact block as balance staff, by the supporting of the detent 3 on circular impact rack bore, be rocked to the one end (shown in Fig. 4) of waving groove 2, what now circular impact support drove impact block, and pulled axle 1 and pulls that axle front end is connected with pulls the synchronous rotation work of cover (shown in Fig. 1, Fig. 4).When nut or bolt rotate screw-down torque while reaching setting value, the projection 4 of waving on impact block is being rotated under the effect of screw-down torque, be rocked to the other end that waves groove 2 on circular impact rack bore, now the groove in impact block inner chamber is connected (shown in Fig. 5) with the fan-shaped projection disengaging of pulling on axle 1 cylindrical, pull axle 1 and do not rotate, circular impact support and impact block are rotated further and dally.When the groove in the impact block inner chamber rotating with pull fan-shaped projection on axle 1 cylindrical be re-engaged be connected after (shown in Fig. 4), under the rotation of circular impact support drives, on impact block wave projection 4 one end of waving groove 2 that are rocked to again on circular impact rack bore, return to original position (shown in Fig. 4), repeat above-mentioned action, continue to drive impact block to tighten work to nut or bolt by circular impact support.
Above-mentioned is only preferred embodiment of the present utility model; be noted that for those of ordinary skill in the art; with essentially identical means; realize essentially identical function; reach essentially identical effect, without other technical characterictic of just obviously associating through creative work, can also replace modification and/or the improvement of making several basic identical mode; these variations should be considered as equivalent feature, within all belonging to the protection domain of the utility model patent.
Claims (4)
1. a gas plate machine monolithic percussion mechanism, is characterized in that: be at least connected with an impact block and pull axle (1) driving at the closed cavity that impacts support and join; Described impact block outer surface is upper and lower be equipped with wave projection (4), positioning convex (5), correspondence is placed in impacts upper and lower the waving in groove (2), detent (3) of being provided with in rack bore surface.
2. gas plate machine monolithic percussion mechanism according to claim 1, is characterized in that: be connected with two impact blocks at the closed cavity that impacts support; Described two impact blocks relatively turn to 180 degree and pull axle (1) driving and join.
3. gas plate machine monolithic percussion mechanism according to claim 1 and 2, is characterized in that: described wave groove (2) and detent (3) is arc groove.
4. gas plate machine monolithic percussion mechanism according to claim 3, is characterized in that: described wave projection (4) and positioning convex (5) is arc convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320841748.5U CN203611189U (en) | 2013-12-14 | 2013-12-14 | Single-block impact device of pneumatic wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320841748.5U CN203611189U (en) | 2013-12-14 | 2013-12-14 | Single-block impact device of pneumatic wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203611189U true CN203611189U (en) | 2014-05-28 |
Family
ID=50763868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320841748.5U Expired - Lifetime CN203611189U (en) | 2013-12-14 | 2013-12-14 | Single-block impact device of pneumatic wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203611189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI549784B (en) * | 2015-08-28 | 2016-09-21 | 王奕柔 | Hammering assembly of a power tool |
| CN105983936A (en) * | 2015-02-07 | 2016-10-05 | 泰田集团有限公司 | Striking structure of impact pneumatic trigger |
| CN109421012A (en) * | 2017-08-31 | 2019-03-05 | 瓜生制作株式会社 | The impulsive torque generation device of fluid pressure type torque wrench |
-
2013
- 2013-12-14 CN CN201320841748.5U patent/CN203611189U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105983936A (en) * | 2015-02-07 | 2016-10-05 | 泰田集团有限公司 | Striking structure of impact pneumatic trigger |
| TWI549784B (en) * | 2015-08-28 | 2016-09-21 | 王奕柔 | Hammering assembly of a power tool |
| CN109421012A (en) * | 2017-08-31 | 2019-03-05 | 瓜生制作株式会社 | The impulsive torque generation device of fluid pressure type torque wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |