CN207656633U - Pneumatic tool transmission shaft - Google Patents
Pneumatic tool transmission shaft Download PDFInfo
- Publication number
- CN207656633U CN207656633U CN201721636333.9U CN201721636333U CN207656633U CN 207656633 U CN207656633 U CN 207656633U CN 201721636333 U CN201721636333 U CN 201721636333U CN 207656633 U CN207656633 U CN 207656633U
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- utility
- model
- pneumatic tool
- hammering
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 238000005242 forging Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 abstract 2
- 238000000465 moulding Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
The utility model relates to a pneumatic tool transmission shaft, it includes axle center, work end, drive end, radial cross section, two hammering drive blocks and two recesses, work end is relative with the drive end in the direction that the axle center extends, radial cross section intersects with the axle center, each hammering drive block including the terminal surface of leaning on towards the work end, each recess includes the terminal towards the work end, the terminal surface of leaning on of each hammering drive block aligns in radial cross section with the terminal of each recess; the utility model discloses make with precision forging, the cover is arranged in the utility model discloses a bearing with the utility model discloses area of contact between can not reduce because of removing the material processing, can solve the current pneumatic tool transmission shaft that shaping cutter machine-shaping, the unable complete contact of bearing and transmission shaft caused transmission shaft can't stabilize the pivoted problem, provide one kind with the bearing between area of contact big and can stabilize the pivoted pneumatic tool transmission shaft.
Description
Technical field
The utility model is related to a kind of percussion tools of fluid pressure actuated, refer in particular to a kind of contact surface between bearing
Long-pending big, energy stable rotation and the pneumatic tool transmission shaft for saving cost of manufacture.
Background technology
Pneumatic tool is a kind of percussion tool driven by gas-pressurized, is internally provided with rotor, is hammered into shape by rotor driving
The transmission shaft beaten group and driven by hammering group, pneumatic tool are rotated by drive of high-pressure gas rotor, and hammering group impacts transmission again
Axis enables transmission shaft drive the rotation of the fixing pieces such as bolt either nut, allows user can be laborsaving and rapidly carry out various dismounting
Work.
As shown in figure 5, existing pneumatic tool transmission shaft 90 include an opposite working end 901, one driving end 902,
Two set on the driving end 902 hammer drive block 91 and two grooves 92；Wherein, between the two hammering drive blocks 91 and two grooves 92
Every setting, between the two hammering drive blocks 91, the two hammering drive blocks 91 are impacted for hammering group and are driven each groove 92
Bolt or nut.
As shown in fig. 6, existing pneumatic tool transmission shaft 90 is during fabrication, processed with a molding cutter C remove material
Milling, the two hammering drive blocks 91 and two grooves 92 for forming the pneumatic tool transmission shaft 90；However, the molding that section is rounded
Cutter C includes a diameter C1, therefore, is processed from the driving end 902 toward the working end 901 in molding cutter C, and at
During the hammering drive block 91 of type two and two grooves 92, the length for having each groove 92 is more than each hammering drive block 91
The problem of length, it is, the terminal of each groove 92 has more a distance D compared to the end of each hammering drive block 91.
As shown in fig. 7, the length of each groove 92 is more than the length of each hammering drive block 91, when a bearing B is sheathed on the biography
Moving axis 90 and when being resisted against each two hammering drive blocks 91, do not completely attached between bearing B and the transmission shaft 90 so that the axis
The support and lubricating action for holding B reduce, and the transmission shaft 90 is enabled not rotate steadily, it follows that existing pneumatic tool passes
Moving axis 90 still has the space of improvement and progress in structure and on making.
Utility model content
In order to solve the transmission shaft of existing pneumatic tool, is shaped with molding cutter, and keep the length of each groove big
In the length of each hammering drive block, allow bearing and transmission shaft can not completely attach to caused transmission shaft can not stable rotation ask
Topic.The utility model proposes a kind of pneumatic tool transmission shaft, with precision forging come formed the hammering drive block of transmission shaft with it is recessed
Slot, can be so that groove has the same length with hammering drive block, and the contact area for avoiding bearing and transmission between centers is insufficient
Situation, and transmission shaft can be made steadily to rotate, while the cost made can be also reduced because saving multiple tracks processing program.
The utility model solves the pneumatic tool transmission shaft that is proposed of technical problem comprising have an axle center, a working end,
One driving end, a radial section, at least one hammering drive block and an at least groove, the working end is with the driving end in the axle center institute
Opposite on the direction of extension, which intersects with the axle center, which includes towards the working end
One against end face, which includes a terminal towards the working end, which supports
Terminal by end face and an at least groove is aligned in the radial section.
Optionally, the pneumatic tool transmission shaft, wherein the number of at least one hammering drive block is set as two,
The number of an at least groove is set as two, and the two hammering drive blocks and two grooves are with precision forging formation and each groove
Between the two hammering drive blocks.
Advantageous effect is obtained by the technological means of the utility model：The utility model is made with precision forging, when
When bearing is placed on the utility model, the contact area between bearing and the utility model will not contract due to except the reason of material processing
Subtract, bearing can be enabled to play good support and lubricating action, allows the utility model that can steadily be rotated in running；Furthermore by
It can be directly processed after precision forging in the utility model, thus can save and make spent cost.
Description of the drawings
The stereoscopic schematic diagram of Fig. 1 the utility model preferred embodiments.
The floor map of the side view of Fig. 2 the utility model preferred embodiments.
The floor map that the other side of Fig. 3 the utility model preferred embodiments regards.
The production flow diagram of Fig. 4 the utility model.
The stereoscopic schematic diagram of the existing pneumatic tool transmission shafts of Fig. 5.
The plane machining schematic diagram of the side view of the existing pneumatic tool transmission shafts of Fig. 6.
The floor map of the side view of the existing pneumatic tool transmission shafts of Fig. 7.
Primary clustering symbol description：
10 transmission shaft, 101 working end
102 driving ends 11 hammer drive block
111 hammer drive surface against end face 112
12 groove, 121 terminal
The axle center X
Specific implementation mode
The preferred embodiment for coordinating schema and the utility model below, it is to reach to make a reservation in fact that the utility model, which is expanded on further,
The technological means taken with novel purpose.
As shown in Figure 1, Figure 2 and Figure 3, the pneumatic tool transmission shaft 10 of the utility model includes：One axle center X, a working end
101, a driving end 102, a radial section P, two hammering drive blocks 11 and two grooves 12；Wherein, the working end 101 is for combining
An one bolt either nut, the driving end 102 are placed through inside a lever or an appearance shell and are combined with a hammering group, the work
It is opposite on the direction that axle center X is extended with the driving end 102 to make end 101, radial section P intersects vertically with axle center X,
The groove 12 is formed the two hammering drive blocks 11 with precision forging with two, and each groove 12 between the two hammering drive blocks 11 it
Between, each drive block 11 that hammers includes one to hammer drive surface 112, each abutment end for hammering drive block 11 against end face 111 and two
Face 111 is towards the working end 101, and each two hammering drive surfaces 112 for hammering drive block 11 are respectively for two grooves 12, each groove
12 include a terminal 121 towards the working end 101, it is each hammer drive block 11 against end face 111 and each groove 12
Terminal 121 is aligned in radial section P；In the preferred embodiment of the utility model, each drive block 11 that hammers includes a length
L1 is spent, length L1 is defined as the driving end 102 to the distance against end face 111 of the hammering drive block 11, and each groove 12 wraps
A length L2 is included, length L2 is defined as the driving end 102 to the distance of the terminal 121 of the groove 12, the length of the groove 12
Spend the length L1 that L2 is equal to the hammering drive block 11.
As shown in figure 4, after being made with precision forging due to the utility model, fining-off is directly carried out, is somebody's turn to do in molding two
When hammering drive block 11 and two grooves 12, it need not be carried out except material processing through molding cutter, therefore will not be because of to cut
Face rounded molding cutter is processed, and cause the length L1 of each groove 11 be more than each hammering drive block 12 length L2 feelings
Condition；As shown in Figures 2 and 3, when a bearing B be sheathed on the utility model and be resisted against each hammering drive block 11 against end face
When 111, the contact area between bearing B and the utility model will not reduce due to except the reason of material processing, enable bearing B energy
Play good support and lubricating action；Compared with existing pneumatic tool transmission shaft 90, the utility model can ensure that bearing B
There is sufficient contact area between the utility model, so that the utility model is steadily rotated, and save in the production process
Multiple tracks processing program has been omited, the cost reduction in making can be made.
The above is only the preferred embodiment of the utility model, is not done in any form to the utility model
Limitation is not limited to the utility model although the utility model is disclosed above with preferred embodiment, any to be familiar with
Professional and technical personnel, in the range of not departing from technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, the technical spirit according to this practicality utility model to any simple modification, equivalent change and modification made by above example,
It is still within the scope of the technical solutions of the present invention.
Claims (2)
1. a kind of pneumatic tool transmission shaft, which is characterized in that include an axle center, a working end, a driving end, a radial direction section
Face, at least one hammering drive block and an at least groove, the working end is opposite on the direction that the axle center is extended with the driving end,
The radial section intersects with the axle center, which includes towards the working end one against end face, this is extremely
A few groove includes a terminal towards the working end, at least one hammering drive block against end face, at least one is recessed with this
The terminal of slot is aligned in the radial section.
2. pneumatic tool transmission shaft according to claim 1, which is characterized in that the number of at least one hammering drive block
Mesh is set as two, and the number of an at least groove is set as two, and the two hammering drive blocks and two grooves are with precision forging
It is formed and each groove is between the two hammering drive blocks.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106203545U TWM545678U (en) | 2017-03-14 | 2017-03-14 | Pneumatic tool drive shaft |
| TW106203545 | 2017-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207656633U true CN207656633U (en) | 2018-07-27 |
Family
ID=60050473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721636333.9U Expired - Fee Related CN207656633U (en) | 2017-03-14 | 2017-11-30 | Pneumatic tool transmission shaft |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207656633U (en) |
| TW (1) | TWM545678U (en) |
-
2017
- 2017-03-14 TW TW106203545U patent/TWM545678U/en not_active IP Right Cessation
- 2017-11-30 CN CN201721636333.9U patent/CN207656633U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TWM545678U (en) | 2017-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 Termination date: 20201130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |