CN204997639U - Electric tool impact block structure of improvement - Google Patents
Electric tool impact block structure of improvement Download PDFInfo
- Publication number
- CN204997639U CN204997639U CN201520625757.XU CN201520625757U CN204997639U CN 204997639 U CN204997639 U CN 204997639U CN 201520625757 U CN201520625757 U CN 201520625757U CN 204997639 U CN204997639 U CN 204997639U
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- China
- Prior art keywords
- impact block
- transmission shaft
- steel ball
- impact
- electric tool
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Abstract
The utility model relates to an electric tool technical field, in particular to electric tool impact block structure of improvement, including impact block, transmission shaft and impact spring, impact block installs in the transmission shaft, it cup joints in the transmission shaft to assault the spring, impact block includes cylinder and spacing disc, still include the rolling device, the rolling device includes the inner circle, outer lane and steel ball, the steel ball sets up between inner circle and the outer lane, the outside upset in edge of inner circle forms interior hem, infolding margin system steel ball drops between inner circle and outer lane, the inner circle cup joints in impact block's cylinder, and support and lean on in spacing disc, strike spring one end to leaning on in the rolling device, the other end supports the spacing step that leans on in the transmission shaft. Because the utility model discloses a steel ball adopts inner circle and outer lane fixed, and the rolling device is equivalent to a simple and easy thrust bearing, and the preparation of rolling device is fairly simple, and manufacturing cost is lower, and the structural cancellation annular groove of impact block makes impact block simple structure, easily production, cost reduction.
Description
Technical field
The utility model relates to electric tool technical field, the electric tool impact block structure of particularly a kind of improvement.
Background technology
In order to realize impact function, in electric tool, be provided with impact structure.As shown in Figure 1, traditional impact structure comprises impact block 101, power transmission shaft 102 and impact spring 103, impact block 101 is installed on power transmission shaft 102, the spacing disk of impact block 101 is provided with annular groove 104, be provided with steel ball 105 in annular groove 104, be also provided with the pad 106 of placing restrictions on steel ball 105 and coming off in annular groove 104, impact spring 103 is socketed on power transmission shaft 102, one end of impact spring 103 is resisted against the limited step 107 of power transmission shaft 102, and the other end is resisted against pad 106.This impact structure can provide impact function for electric tool, but also Shortcomings.Because impact block 101 needs to arrange annular groove 104, the cost of manufacture of impact block 101 is increased greatly, annular groove 104 can by forging, powder compacting or mach mode make, but difficulty of processing is all larger, production cost also increases greatly.
Utility model content
The purpose of this utility model is defect for prior art and deficiency, provides a kind of electric tool impact block structure of improvement.
For achieving the above object, the utility model is by the following technical solutions: a kind of electric tool impact block structure of improvement, comprise impact block, power transmission shaft and impact spring, described impact block is installed on described power transmission shaft, described impact spring is socketed on described power transmission shaft, described impact block comprises cylinder and spacing disk, also comprise tourelle, described tourelle comprises inner ring, outer ring and steel ball, described steel ball arranges between described inner ring and described outer ring, flanging in the edge of described inner ring outwards overturns and formed, described in described infolding margin system, steel ball comes off between described inner ring and described outer ring, described inner ring is socketed on the cylinder of described impact block, and be resisted against described spacing disk, described impact spring one end is resisted against described tourelle, the other end is resisted against the limited step of described power transmission shaft.
Pad is provided with between described tourelle and described impact spring.
The edge of described outer ring inwardly overturns and forms outer flanging, and described outer flanging limits described steel ball and comes off between described inner ring and described outer ring.
Described interior flanging is formed by the edge of the described inner ring of forging and stamping.
Described outer flanging is formed by the edge of the described outer ring of forging and stamping.
The utility model beneficial effect is: because steel ball of the present utility model adopts inner ring and outer ring to fix, tourelle is equivalent to an easy thrust bearing, the making of tourelle is simple, production cost is lower, impact block structure cancels annular groove, make impact block structure simple, be easy to produce, cost reduces.Therefore, it is simple that the utility model has making, the advantage that production cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of conventional impact structure.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation of the utility model tourelle.
Fig. 1 to Fig. 3 comprises: 1---impact block, and 11---cylinder, 12---spacing disk, 2---power transmission shaft, 21---limited step, 3---impact spring, 4---tourelle, 41---inner ring, 411---interior flanging, 42---outer ring, 421---outer flanging, 43---steel ball, 5---pad, 101---impact block, 102---power transmission shaft, 103---impact spring, 104---annular groove, 105---steel ball, 106---pad, 107---limited step.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
See Fig. 2 and Fig. 3, a kind of electric tool impact block structure of improvement, comprise impact block 1, power transmission shaft 2 and impact spring 3, impact block 1 is installed on power transmission shaft 2, impact spring 3 is socketed on power transmission shaft 2, impact block 1 comprises cylinder 11 and spacing disk 12, also comprise tourelle 4, tourelle 4 comprises inner ring 41, outer ring 42 and steel ball 43, steel ball 43 arranges between inner ring 41 and outer ring 42, flanging 411 in the edge of inner ring 41 outwards overturns and formed, interior flanging 411 limits steel ball 43 and comes off between inner ring 41 and outer ring 42, inner ring 41 is socketed on the cylinder 11 of impact block 1, and be resisted against spacing disk 12, impact spring 3 one end is resisted against tourelle 4, the other end is resisted against the limited step 21 of power transmission shaft 2.
Pad 5 is provided with between tourelle 4 and impact spring 3.
The edge of outer ring 42 inwardly overturns and forms outer flanging 421, and outer flanging 421 limits steel ball 43 and comes off between inner ring 41 and outer ring 42.
Interior flanging 411 is formed by the edge of forging and stamping inner ring 41, and during forging and stamping, pressure head applies an outside power to the edge of inner ring 41, and edge is outwards bent.
Outer flanging 421 is formed by the edge of forging and stamping outer ring 42, and during forging and stamping, pressure head applies an inside power to the edge of outer ring 42, and edge is bent inwards.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (5)
1. the electric tool impact block structure of an improvement, comprise impact block, power transmission shaft and impact spring, described impact block is installed on described power transmission shaft, described impact spring is socketed on described power transmission shaft, described impact block comprises cylinder and spacing disk, it is characterized in that: also comprise tourelle, described tourelle comprises inner ring, outer ring and steel ball, described steel ball arranges between described inner ring and described outer ring, flanging in the edge of described inner ring outwards overturns and formed, described in described infolding margin system, steel ball comes off between described inner ring and described outer ring, described inner ring is socketed on the cylinder of described impact block, and be resisted against described spacing disk, described impact spring one end is resisted against described tourelle, the other end is resisted against the limited step of described power transmission shaft.
2. the electric tool impact block structure of a kind of improvement according to claim 1, is characterized in that: be provided with pad between described tourelle and described impact spring.
3. the electric tool impact block structure of a kind of improvement according to claim 1, is characterized in that: the edge of described outer ring inwardly overturns and forms outer flanging, and described outer flanging limits described steel ball and comes off between described inner ring and described outer ring.
4. the electric tool impact block structure of a kind of improvement according to claim 1, is characterized in that: described interior flanging is formed by the edge of the described inner ring of forging and stamping.
5. the electric tool impact block structure of a kind of improvement according to claim 3, is characterized in that: described outer flanging is formed by the edge of the described outer ring of forging and stamping.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625757.XU CN204997639U (en) | 2015-08-19 | 2015-08-19 | Electric tool impact block structure of improvement |
| TW105212467U TWM541932U (en) | 2015-08-19 | 2016-08-17 | Improved structure of impact block of electrical tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520625757.XU CN204997639U (en) | 2015-08-19 | 2015-08-19 | Electric tool impact block structure of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204997639U true CN204997639U (en) | 2016-01-27 |
Family
ID=55154544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520625757.XU Active CN204997639U (en) | 2015-08-19 | 2015-08-19 | Electric tool impact block structure of improvement |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204997639U (en) |
| TW (1) | TWM541932U (en) |
-
2015
- 2015-08-19 CN CN201520625757.XU patent/CN204997639U/en active Active
-
2016
- 2016-08-17 TW TW105212467U patent/TWM541932U/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TWM541932U (en) | 2017-05-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |