CN2644106Y - Improved beating portion for air-actuated wrench - Google Patents
Improved beating portion for air-actuated wrench Download PDFInfo
- Publication number
- CN2644106Y CN2644106Y CN 200320117030 CN200320117030U CN2644106Y CN 2644106 Y CN2644106 Y CN 2644106Y CN 200320117030 CN200320117030 CN 200320117030 CN 200320117030 U CN200320117030 U CN 200320117030U CN 2644106 Y CN2644106 Y CN 2644106Y
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- CN
- China
- Prior art keywords
- hammer
- seat
- interlock
- hammering seat
- transmission shaft
- 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.)
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Abstract
The utility model relates to the technical field of pneumatic tool, in particular to an improved structure of the beating part for a pneumatic spanner. The utility model mainly comprises a hammer beating seat, and the bolt groove hole on one end of the hammer beating seat is connected with the pneumatic motor to move, and the through hole on the other end is for the passing of the transmission shaft. The hammer beating seat is provided with placing rooms of front and back, and the placing rooms of front and back are respectively for the placing of two hammers. The hammer is provided with an abnormal hole for the connecting rib of the transmission shaft to move. Wherein, the middle of the thrust arm on two sides inside the hammer seat is provided with an isolation rib in a protruded manner to isolate the two hammers and avoid the friction and the wasting of the power, and the rigidity of the hammer is increased, and the stress is detracted, which avoids the stress collecting on the angle edge. A reinforcing rib is arranged between the interlock ribs correspondingly positioned on front and back of the end of the transmission shaft to change the collecting phenomenon of the stress.
Description
Technical field:
The utility model relates to the pneumatic tool technical field, refers in particular to a kind of strike portion structural improvement of pneumatic impact spanner.
Background technology:
Pneumatic impact spanner mainly is to be applied to large-scale nut, the locking or the pine of screw are unloaded work, because the screw of its application, the desired locking torque of nut is very high, therefore the moment of torsion that itself produced is also very high, the structure of spanner itself also affords suitable torsional interaction, see also accompanying drawing 1, shown in 2, the striking structure 10 of commonly using pneumatic impact spanner mainly is to comprise a hammering seat 11, the croze hole 111 of one end is and the air motor socket, end is to be nested with for power transmission shaft 12 in addition, supply two hammers 13 in the hammering seat 11,14 is ccontaining, and by steady pin 15,16 articulate location, two hammers 13, irregularly-shaped hole 131 in 14,141 with the interlock rib 121 mutual applying interlocks of power transmission shaft 12.
Can promote synchronously hammer 13,14 and interlock power transmission shafts 12 rotations synchronously when hammering seat 11 is subjected to the air motor interlock, and the hammer 13,14 of being put direction by two differences rotates synchronously with interlock rib 121 and drives power transmission shaft 12 and rotate.But the striking structure of commonly using has following shortcoming to exist in the use:
1, the interlock rib of power transmission shaft produces easily that stress is concentrated and embrittlement:
See also shown in the accompanying drawing 1,3, the interlock rib 121 of power transmission shaft 12 bears the transmission force of hammer 13,14 and produces high moment of torsion output, therefore interlock rib 121 bears quite big load relatively, especially the edge A place, angle of interlock rib 121 has the concentrated phenomenon of stress, therefore produces the situation of embrittlement destruction.
2, hammer rubs mutually:
See also shown in the accompanying drawing 2, neighbour and two hammers 13,14 that establish will produce the situation of heat and wearing and tearing because of high-speed friction under rotation at a high speed, and will consume portion of energy.
3, hammering seat rigidity is relatively poor, and the concentrated phenomenon of stress is also arranged:
See also shown in the accompanying drawing 1,4, pass on the hammering seat 11 of power also can the concentrated phenomenon of stress to produce at the edge B place, angle of portion within it, commonly use the structural design of hammering seat 11, so the phenomenon that edge B place, angle also has embrittlement destruction takes place, reduce service life without any dispersive stress.
4, the stressed situation of hammer, steady pin:
Hammer 13, the 14th, by two steady pins 15,16 pivot joints are positioned on the hammering seat 11, and two steady pins 15,16 bear the strength and the interlock hammer 13 of hammering seat 11 again, during 14 rotations, fully by steady pin 15,16 transmit strength, hammer the pin joint hole 112 of seat 11 into shape thereby bear steady pin 15,16 stress, because of the bearing area in pin joint hole 112 little, therefore the rigidity in pin joint hole 112 is relatively poor, must effectively prolong the length in pin joint hole 112, cause the length in pin joint hole 112 almost isometric with hammer seat 11, therefore the boring in pin joint hole 112, the processing capacity of fraising is many, increases processing cost relatively.
Summary of the invention:
The purpose of this utility model is to overcome the defective of prior art, provide a kind of effective change stress concentrated phenomenon, both can avoid friction and the loss of power, also increase the rigidity of hammering seat, dispersive stress avoids stress to concentrate on the strike portion structural improvement of the pneumatic impact spanner of angle edge.
For achieving the above object, convex with separation rib in the middle of the thrust arm of the inner both sides of the hammering seat of the utility model, before separation rib is separated between accommodation chamber and the back holding chamber, two ccontaining hammers in front and back are separated just and are established; Intermittently be provided with the interlock rib before and after the end simultaneously power transmission shaft and the hammer socket, and establish a reinforced ribs in interrupted edge's ring and connect two interlock ribs.
Two steady pins of described bolt hammer plug the pin joint hole that is combined in the hammering seat by hammering seat two ends respectively, and corresponding to the arc slotted eye of hammer one side, and the sipes on the hammer opposite side cooperates group to establish with the protruding pin bar of the inner forming of hammering seat respectively.
The utility model is provided with a reinforced ribs between the corresponding interlock rib that is provided with before and after the power transmission shaft end, change the concentrated phenomenon of stress by this, and set separation fin in the hammering seat, remove and to separate two hammers, avoid friction and the loss of power outside, more can increase the rigidity of hammering seat, dispersive stress, avoid stress to concentrate on the angle edge, also shorten the length of steady pin simultaneously relatively and substitute steady pin with the protruding pin bar that is shaped in the hammering seat, reduce manufacturing cost, and effectively promote structural rigidity and service life.
Description of drawings:
Accompanying drawing 1 is for commonly using the striking structure three-dimensional exploded view of pneumatic impact spanner;
Accompanying drawing 2 is for commonly using the striking structure assembled view of pneumatic impact spanner;
Accompanying drawing 3 is a plane of commonly using the power transmission shaft of pneumatic impact spanner;
Accompanying drawing 4 is a plane of commonly using the hammering seat of pneumatic impact spanner;
Accompanying drawing 5 is a perspective exploded view of the present utility model;
Accompanying drawing 6 is a combination schematic diagram of the present utility model;
Accompanying drawing 7 is the cutaway view of the hammering seat of the utility model;
Accompanying drawing 8 is the cutaway view of Fig. 7 along the C-C line.
The specific embodiment:
See shown in the accompanying drawing 5～8 that the utility model mainly comprises a hammering seat 20, the croze hole 21 and the air motor socket interlock of hammering seat 20 1 ends, the perforation 22 of end wears for power transmission shaft 30 in addition.Accommodation chamber 25,26 before and after establishing in the hammering seat 20, supply two hammers 41,42 ccontaining respectively in the accommodation chamber 25,26 of front and back, and by steady pin 431,432 difference bolt location, hammer 41,42 is provided with interlock rib 31, the 32 socket interlocks of irregularly-shaped hole 411,421 for power transmission shaft 30.Convex with separation ribs 24 in the middle of the thrust arm 23 of hammering seat 20 inner both sides, before separation rib 24 is separated between accommodation chamber 25 and the back holding chamber 26, two ccontaining hammers 41,42 in front and back are separated just and are established.Intermittently be provided with interlock rib 31,32 before and after one ends power transmission shaft 30 and hammer 41,42 sockets, and establish a reinforced ribs 33 connections two interlock ribs 31,32 in interrupted edge's ring.Two steady pins 431,432 of described bolt hammer 41,42 plug the pin joint hole 281,282 that is combined in hammering seat 20 by hammering seat 20 two ends respectively, and corresponding to the arc slotted eye 412,422 of hammer 41,42 1 sides, and the sipes 413,423 on hammer 41,42 opposite sides cooperates group to establish with the protruding pin bar 271,272 of hammering seat 20 inner formings respectively.
Shown in accompanying drawing 5,6, the interlock rib 31,32 of power transmission shaft 30 terminal forward and backward settings mainly is to bear the thrust of two hammers 41,42 and produce torsion, the set reinforced ribs 33 of interrupted edge between the forward and backward interlock rib 31,32 continues two interlock ribs 31,32 and is one, make and to concentrate on the complete obiteration of A point by stress originally, stress will be born and moved eliminating along reinforced ribs 33 by reinforced ribs 33, thereby reduction stress value, make interlock rib 31,32 can bear higher torque value, structural rigidity is better, and service life is more of a specified duration.
Shown in accompanying drawing 5,6,7, hammering seat 20 inner both sides form forward and backward accommodation chamber 25,26 by separation rib 24 separations, and with 41, the 42 independently divided settings of two hammers, therefore two hammers 41,42 will independently operate and not have a phenomenon of mutual friction and wearing and tearing, improve the shortcoming of commonly using fully, make the longer service life of two hammers 41,42, reduce the energy dissipation of wearing and tearing generation.
Shown in accompanying drawing 5,6, the reception and registration of the torsion of strike portion is after accepting the torsion of air motor by the croze hole 21 of hammering seat 20, and by steady pin on the thrust arm 23 431,432 and protruding pin bar 271,272 thruster hammers 41,42, again by 30 rotations of hammer 41,42 rotating drive shafts; Therefore thrust arm 23 plays the effect that moment is passed on, the thrust arm 23 of this long thin type is increased its structural rigidity by separation rib 24, can reduce the torsional deformation that thrust arm 23 is produced when stressed, absorption portion stress, avoid too much stress to concentrate on edge B place, angle, after stress reduced, structural rigidity promoted naturally, the phenomenon that stress is concentrated is eliminated naturally, and promote service life relatively.
Shown in accompanying drawing 5～8, minimizing 1/2 length that the steady pin of the utility model 431,432 is more traditional, so the boring in pin joint hole 281,282 and fraising length reduces by half relatively, processing cost also reduces relatively; In addition, protruding pin bar the 271, the 272nd, with the 20 one-body molded making of hammering seat, therefore the intensity that promotes its rigidity and contend with and hit relatively promotes service life.
Can learn by above-mentioned explanation and the utlity model has following advantage:
1, the rigidity of power transmission shaft promotes, and is equipped with reinforced ribs between the interlock rib of this power transmission shaft and connects, and promotes rigidity, dispersive stress, and the concentrated phenomenon that eliminates stress promotes structural rigidity and service life.
2, hammer can not rub mutually, and the hammering seat and does not have the phenomenon of mutual friction by separation rib with two hammers at interval, the heat that can reduce friction, and friction loss and friction kinetic energy rejection improve service life.
3, hammering seat rigidity promotes, and the separation rib in the hammering seat has the function of reinforcement rigidity, promotes the rigidity of thrust arm, and bears antitorque stress, reduces stress, changes and subtracts the concentrated phenomenon of stress, increases the service life relatively.
4, steady pin length reduces by half, and pin joint hole processing charges reduces relatively, and uses and to be shaped in the protruding pin bar in the hammering seat and to promote structural rigidity, promotes service life relatively.
Claims (3)
1, a kind of strike portion structural improvement of pneumatic impact spanner, mainly comprise a hammering seat (20), the croze hole (21) of hammering seat (20) one ends and air motor socket interlock, the perforation (22) of end wears for power transmission shaft (30) in addition, accommodation chamber (25) before and after establishing in this hammering seat (20), (26), front and back accommodation chamber (25), (26) supply two hammers (41) in respectively, (42) ccontaining, and by steady pin (431), (432) bolt is located respectively, hammer (41), (42) be provided with irregularly-shaped hole (411), (421) the interlock rib (31) of confession power transmission shaft (30), (32) socket interlock, it is characterized in that: convex with separation rib (24) in the middle of the thrust arm (23) of the inner both sides of hammering seat (20), separation rib (24) is separated between preceding accommodation chamber (25) and the back holding chamber (26), two hammers (41) that front and back are ccontaining, (42) separate just and establish.
2, the strike portion structural improvement of a kind of pneumatic impact spanner according to claim 1, it is characterized in that: intermittently be provided with interlock rib (31), (32) before and after the end described power transmission shaft (30) and hammer (41), (42) socket, and establish a reinforced ribs (33) connection two interlock ribs (31), (32) in interrupted edge's ring.
3, the strike portion structural improvement of a kind of pneumatic impact spanner according to claim 1, it is characterized in that: two steady pins (431) of described bolt hammer (41), (42), (432) plug pin joint hole (281), (282) that are combined in hammering seat (20) by hammering seat (20) two ends respectively, and corresponding to hammer (41), the arc slotted eye (412) of (42) one sides, (422), and sipes (413), (423) on the hammer (41), (42) opposite side cooperate group to establish with protruding pin bar (271), (272) of the inner forming of hammering seat (20) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320117030 CN2644106Y (en) | 2003-10-15 | 2003-10-15 | Improved beating portion for air-actuated wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320117030 CN2644106Y (en) | 2003-10-15 | 2003-10-15 | Improved beating portion for air-actuated wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2644106Y true CN2644106Y (en) | 2004-09-29 |
Family
ID=34305333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320117030 Expired - Fee Related CN2644106Y (en) | 2003-10-15 | 2003-10-15 | Improved beating portion for air-actuated wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2644106Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275335A (en) * | 2014-10-31 | 2015-01-14 | 中国三冶集团有限公司 | Pre-buried bent wire tube dredging device and use method thereof |
-
2003
- 2003-10-15 CN CN 200320117030 patent/CN2644106Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275335A (en) * | 2014-10-31 | 2015-01-14 | 中国三冶集团有限公司 | Pre-buried bent wire tube dredging device and use method thereof |
| CN104275335B (en) * | 2014-10-31 | 2016-03-02 | 中国三冶集团有限公司 | A kind of pre-buried bent wire pipe dredger and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dongguan Youguo Die-casting Co., Ltd. Assignor: Zheng Xuemei Contract fulfillment period: 2008.11.1 to 2014.11.1 Contract record no.: 2009990000003 Denomination of utility model: Improved beating portion for air-actuated wrench Granted publication date: 20040929 License type: General permission Record date: 20090104 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.1 TO 2014.11.1; CHANGE OF CONTRACT Name of requester: DONGGUAN YOUGUO DIE-CASTING CO., LTD. Effective date: 20090104 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040929 Termination date: 20101015 |