CN102200149B - Air cylinder device - Google Patents
Air cylinder device Download PDFInfo
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- CN102200149B CN102200149B CN 201110158412 CN201110158412A CN102200149B CN 102200149 B CN102200149 B CN 102200149B CN 201110158412 CN201110158412 CN 201110158412 CN 201110158412 A CN201110158412 A CN 201110158412A CN 102200149 B CN102200149 B CN 102200149B
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Abstract
The invention discloses an air cylinder device which is applied to an improved hand-held electric hammer of a connecting-rod-type impact mechanism. The air cylinder device comprises an air source channel structure and a thrust structure, wherein the air source channel comprises dislocated-type straight groove-type channel formed by an impact shaft, a cylindrical axial-hole-type multi-groove plate channel formed by a cylindrical axial-hole-type multi-groove plate, and a cylindrical shaft-sleeve-type ring hole channel formed by a rear shaft sleeve; the cylindrical axial-hole-type multi-groove plate is connected with the rear shaft sleeve; and the air source channel is compatible with the thrust structure which is a conical thrust structure. The air cylinder device disclosed by the invention can be used for eliminating the defect of insufficient instant air absorption amount of the air cylinder at a hammer drill or hammering function state; and simultaneously the conical thrust structure is compatible reasonably, a plane thrust structure is replaced, and the drilling performance and the drilling efficiency are improved.
Description
Technical field
The present invention relates to the relevant cylinder assembly of a kind of hand-held electric hammer, relate in particular to a kind of being applied in the linkage type beater mechanism hand held electric hammer structure, when aluminum alloy organism is integrated type integral body, the cylinder assembly of thrust structure in the required source of the gas channel design of gettering quantity and the drilling function.
Background technique
In the existing linkage type beater mechanism hand-held electric hammer, adopting aluminum alloy bed is in the integrated type integral product structure both at home and abroad, and impacting shaft and rear portion cylinder block are linking body structure.Cylinder assembly is by cylinder block, valve core type percussive hammer, piston and connecting rod module composition.Wherein, cylinder block is provided with straight-through type inlet hole, throttle type inlet hole and throttle type suction, exhaust port, connects with cylinder diameter, except the throttle type overflow hole.
Consist of the piston head compression with the air compressing bulkfactor during by the cylinder assembly work done, to the cylinder block throttle type inhale, exhaust port work done distance, throttle type suction, exhaust port and aluminum alloy bed are in the integrated type overall structure in the given cylinder block, it is the plunger relation that rear support axle sleeve aperture consists of the position, though axle sleeve aperture front end is provided with circular groove, be provided with the buffering shock absorbing device in the linkage type beater mechanism electric hammer.When therefore electric hammer is the operation of " hammer drill " or " hammering " function, impacting shaft and body gravity form relative movement, when causing piston air-breathing, be arranged on the cylinder block periphery, cylinder aperture in throttle type suction, exhaust port and the rear support axle sleeve, be in the critical semi-closed state of plunger type, moment causes cylinder assembly should have gettering quantity not enough, affects ballistic work and cutter brill rate.
Be provided with in the linkage type beater mechanism hand-held electric hammer of drilling function, all adopt Plane Rotation friction thrust structure between impacting shaft and support, therefore cause that surface friction drag is large, the drawbacks such as push stopping part megadyne temperature degree is high, the easy abrasion of parts, affect drilling performance and efficient.
Summary of the invention
For source of the gas passage gettering quantity deficiency and thrust structure drilling performance and inefficient problem in the existing cylinder assembly, the invention provides the cylinder assembly of the high thrust structure of the required source of the gas passage of a kind of gettering quantity and drilling function and efficient.
A kind of cylinder assembly, being applied to the linkage type beater mechanism improves in the hand-held electric hammer, described cylinder assembly comprises source of the gas channel design and thrust structure, described source of the gas passage comprises dislocation type straight trough shape passage, the cylinder axis cellular type multi-slot plank passage of cylinder axis cellular type multi-slot plank formation and the cylinder axis shell type annulus hole path that rear axle housing consists of that impacting shaft consists of, described cylinder axis cellular type multi-slot plank is connected with rear axle housing, the compatible thrust structure of described source of the gas passage, described thrust structure is the conical surface thrust structure.
In a preferred embodiment of the present invention, described cylinder assembly also comprises support, axle seal ring, needle bearing, dicyclo seal ring, buffering stage clip, stage clip positioning ring, support lid, large conical gear, small conical gear, big column gear, motor gear, support sealing gasket, motor shaft seal ring, stage clip thrust ring and " ⊥ " shape flat key.
In a preferred embodiment of the present invention, described axle is rubber with seal ring, dicyclo seal ring, support sealing gasket and motor shaft with the making material of seal ring.
In a preferred embodiment of the present invention, described impacting shaft main body is for being hollow step type cylindrical body, and central shaft hole is circular datum hole, and circular datum hole peripheral wall is provided with the five equilibrium rectangle groove.
In a preferred embodiment of the present invention, described cylinder axis cellular type multi-slot plank main body is tabular for being hollow step cylinder, and central shaft hole is circular datum hole, and circular datum hole peripheral wall is provided with the five equilibrium rectangle groove.
In a preferred embodiment of the present invention, described cylinder axis cellular type multi-slot plank is powder metallurgy structural part.
In a preferred embodiment of the present invention, the rear axle housing main body is for being hollow cylinder, and central shaft hole is circular datum hole, and circular datum hole front end is provided with a step type annulus hole, and circular datum hole peripheral wall is provided with the five equilibrium groove.
In a preferred embodiment of the present invention, described rear axle housing is powder metallurgy structural part.
Cylinder assembly of the present invention, being applied to the linkage type beater mechanism improves in the hand-held electric hammer, the cylinder axis shell type annulus hole path that the dislocation type straight trough shape passage that is made of impacting shaft, the cylinder axis cellular type multi-slot plank passage that cylinder axis cellular type multi-slot plank consists of and rear axle housing consist of, be combined as the required source of the gas passage of gettering quantity, when having stopped effectively that aluminum alloy bed is the integrated type overall structure in the linkage type beater mechanism hand held electric hammer, the drawback of cylinder assembly moment gettering quantity deficiency when hammer drill or hammering functional status; Reasonable compatible conical surface thrust structure has substituted the plane thrust structure, and has improved drilling performance and improved drilling efficiency simultaneously.
Description of drawings
Fig. 1 is the source of the gas channel design of cylinder assembly one preferred embodiment of the present invention and the sectional structure chart of thrust structure;
Fig. 2 is the sectional view of A-A direction among Fig. 1;
Fig. 3 is the sectional structure chart of impacting shaft among the present invention;
Fig. 4 is the sectional view of B-B direction among Fig. 3;
Fig. 5 is the front schematic view of rear axle housing among the present invention;
Fig. 6 is the sectional view of C-C direction among Fig. 5;
Fig. 7 is the front schematic view of cylinder axis cellular type multi-slot plank among the present invention;
Fig. 8 is the sectional view of D-D direction among Fig. 7;
The mark of each parts is as follows in the accompanying drawing: 1, support, 2, the axle seal ring, 3, needle bearing, 4, the dicyclo seal ring, 5, impacting shaft, 6, the buffering stage clip, 7, the stage clip positioning ring, 8, cylinder axis cellular type multi-slot plank, 9, rear axle housing, 10, the support lid, 11, large conical gear, 12, small conical gear, 13, the big column gear, 14, motor gear, 15, the support sealing gasket, 16, the motor shaft seal ring, 17, the stage clip thrust ring, 18, " ⊥ " shape flat key, 51, outer conical surface, 52, throttle type is inhaled, exhaust port, 53, minute rectangle groove such as dislocation type arrangement, 54, the five equilibrium rectangle groove, 55, circular datum hole, 56, the step type cylindrical body, 57, external cylindrical surface, 58, cylindrical body, 59, large cylinder, 81, the five equilibrium rectangle groove, 82, internal conical surface, 83, circular datum hole, 84, the step type cylindrical body, 85, ear end face, 91, step type annulus hole, 92, the five equilibrium groove, 93, cylindrical body, 94, circular datum hole.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
See also Fig. 1 and Fig. 2, cylinder assembly is applied in the linkage type beater mechanism hand held electric hammer structure among the present invention, when aluminum alloy organism is integrated type integral body, and the cylinder assembly of thrust structure in the required source of the gas channel design of gettering quantity and the drilling function.This cylinder assembly comprises source of the gas channel design and thrust structure, the source of the gas passage comprises dislocation type straight trough shape passage, the cylinder axis cellular type multi-slot plank passage of cylinder axis cellular type multi-slot plank 8 formations and the cylinder axis shell type annulus hole path that rear axle housing 9 consists of that impacting shaft 5 consists of, and cylinder axis cellular type multi-slot plank 8 is connected with rear axle housing 9.Wherein, the compatible thrust structure of source of the gas passage, thrust structure is the conical surface thrust structure.Cylinder assembly also comprises support 1, axle seal ring 2, needle bearing 3, dicyclo seal ring 4, buffering stage clip 6, stage clip positioning ring 7, support lid 10, large conical gear 11, small conical gear 12, big column gear 13, motor gear 14, support sealing gasket 15, motor shaft seal ring 16, stage clip thrust ring 17 and " ⊥ " shape flat key 18.Wherein, axle is rubber with seal ring 2, dicyclo seal ring 4, support sealing gasket 15 and motor shaft with the making material of seal ring 16.
The improvements of cylinder assembly of the present invention are the shape and structure of impacting shaft 5, cylinder axis cellular type multi-slot plank 8 and 9 three parts of rear axle housing.
See also Fig. 3 and Fig. 4, impacting shaft 5 main bodys are for being hollow step type cylindrical body, and central shaft hole is circular datum hole 55, and circular datum hole 55 peripheral wall are provided with five equilibrium rectangle groove 54, and groove number and flute length are required by setting.Circular datum hole 55 circumference wall thickness consist of step type cylindrical body 56, and connection part is outer conical surface 51.Wherein, be provided with dislocation type in minute rectangle groove 53 tail end bottom lands such as dislocation type arrangement and arrange throttle type suction, exhaust port 52, minute rectangle groove 53 such as dislocation type arrangement is that impacting shaft 5 transmission driving torques are required.Shaped position by above-mentioned impacting shaft 5 consists of dislocation type straight trough shape channel design, the required conical surface thrust structure of compatible drilling function.
See also Fig. 5 and Fig. 6, rear axle housing 9 main bodys are for being hollow cylinder, and central shaft hole is circular datum hole 94, and circular datum hole 94 front ends are provided with a step type annulus hole 91, and circular datum hole 94 circumference wall thickness are provided with five equilibrium groove 92.Shaped position by above-mentioned rear axle housing 9 consists of cylinder axis shell type annulus hole path structure, and this structure is powder metallurgy structural part.
See also Fig. 7 and Fig. 8, cylindrical body axis hole multi-slot plank 8 main bodys are tabular for being hollow step type cylinder, central shaft hole is circular datum hole 83, circular datum hole 83 peripheral wall are provided with five equilibrium rectangle groove 81, circular datum hole 83 front-end faces are internal conical surface 82, consist of step type cylindrical body 84 by circular datum hole 83 circumference wall thickness.Shaped position by above-mentioned cylindrical body axis hole multi-slot plank 8 consists of cylinder axis cellular type multi-slot plank channel design and conical surface thrust structure.
Wherein, in rear axle housing shown in Figure 19, in cylindrical body 93 and the support 1, the rear support axis hole is that the transition fit positioning supports connects.In the impacting shaft 5 step type cylindrical body 56 respectively with rear axle housing 9 in circular datum hole 94 and circular datum hole 83 during cylinder axis cellular type multi-slot plank is connected be slidingly matched and form supporting and location and be connected.In cylinder axis cellular type multi-slot plank 8 ear end faces 85 and the support 1, rear axis hole front end is that spacing thrust connects.
By shown in Figure 1, when the electric hammer unloaded state, throttle type is inhaled in the impacting shaft 5, the width central position in step type annulus hole 91 is that concentric circle overlaps in exhaust port 52 central positions and the rear axle housing 9.In the cylinder axis cellular type multi-slot plank 8 in five equilibrium rectangle groove 81 and the rear axle housing 9 step type annulus hole 91 be coaxial the connection.
Wherein, in the cylinder axis cellular type multi-slot plank 8 in step type cylindrical body 84 and the stage clip positioning ring 7 endoporus be located by connecting for moving joining, supporting the axis hole front-end face in ear end face 85 and the support 1 in the cylinder axis cellular type multi-slot plank 8 is spacing the connection, then consists of the spacing connection of thrust by buffering stage clip 6 compression counter-forces.
Consist of dislocation type straight trough shape passages and rear axle housing 9 shaped positions consist of cylinder axis shell type annulus hole path and cylinder axis cellular type multi-slot plank 8 shape bits formation cylinder axis cellular type multi-slot plank passage by the 5 rear portion cylinder block shaped positions of impacting shaft shown in above-mentioned.The structure that is concerned throttle type suction, the required source of the gas passage of exhaust port gettering quantity in the cylinder assembly that forms among the present invention by the straight trough of dislocation type shown in Fig. 1 shape passage, cylinder axis cellular type multi-slot plank passage and cylinder axis shell type annulus hole path three's rigging position.
By shown in Figure 1, in the impacting shaft 5 nose circle cylinder diameters of axle and the support 1 in the front shaft sleeve in the needle bearing 3 endoporus be that rolling friction cooperates and is located by connecting, minute rectangle groove such as the periphery of rear portion integrated type cylinder block 54 consists of the diameter of axle, be connected for the supporting and location that is slidingly matched with circular datum hole 94 in the rear axle housing 9, consist of impacting shaft 5 supporting structures.
Circular datum hole 83 was located by connecting for moving joining in impacting shaft 5 mid-rear portion cylindrical bodys 58 and the cylinder axis cellular type multi-slot plank 8.Wherein, in the cylinder axis cellular type multi-slot plank 8 in ear end face 85 and the support 1 rear support axis hole front-end face be spacing the connection.Buffering stage clip 6, stage clip thrust ring 17 and stage clip positioning ring 7 are housed on the large cylinder 59 by external cylindrical surface 57 connection parts in the impacting shaft 5 shown in Figure 1, in the stage clip positioning ring 7 in endoporus and the cylinder axis cellular type multi-slot plank 8 step type cylindrical 84 be located by connecting for moving joining, all consist of in the linkage type beater mechanism hand-held electric hammer, when support is the integrated type overall structure, the required buffering stop selection structure of hammer drill and hammering function.
During the drilling function state, be subjected to the manual operation pressure-acting, buffering stage clip 6 is compressed in the impacting shaft 5 internal conical surface 82 in outer conical surface 51 and the cylinder axis cellular type multi-slot plank 8, and spacing thrust connects, and consists of conical surface thrust structure of the present invention.
Throttle type is inhaled in the cylinder assembly of the present invention shown in above-mentioned, institute consists of the conical surface thrust structure when the required source of the gas channel design of exhaust port gettering quantity and drilling function, should be arranged on by support 1, support lid 10 and body set that support sealing gasket 15 consists of.Being provided with axle in the body set consists of in the relative tightness requirement transmission device with seal ring 15, dicyclo sealing rubber 4, motor gear 14, big column gear 13, small conical gear 12, large conical gear 11 and " ⊥ " shape flat key 18 etc. with seal ring 2, motor shaft.Consist of thus in the cylinder assembly of the present invention that throttle type is inhaled, thrust structure in the required source of the gas channel design of exhaust port gettering quantity and the drilling function.
Cylinder assembly of the present invention, be combined as the required source of the gas passage of gettering quantity by dislocation type straight trough shape passage, cylinder axis cellular type multi-slot plank passage and cylinder axis shell type annulus hole path, when having stopped effectively that aluminum alloy bed is the integrated type overall structure in the linkage type beater mechanism hand held electric hammer, the drawback of cylinder assembly moment gettering quantity deficiency when hammer drill or hammering functional status; Reasonable compatible conical surface thrust structure has substituted the plane thrust structure, and has improved drilling performance and improved drilling efficiency simultaneously.
The above; it only is better embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (8)
1. cylinder assembly, being applied to the linkage type beater mechanism improves in the hand-held electric hammer, described cylinder assembly comprises source of the gas channel design and thrust structure, it is characterized in that, described source of the gas channel design comprises the dislocation type straight trough shape passage that impacting shaft rear portion cylinder block shaped position consists of, the cylinder axis shell type annulus hole path that the cylinder axis cellular type multi-slot plank passage that cylinder axis cellular type multi-slot plank shaped position consists of and rear axle housing shaped position consist of, described cylinder axis cellular type multi-slot plank is connected with rear axle housing, described source of the gas channel design and thrust structure are complementary, and described thrust structure is the conical surface thrust structure.
2. cylinder assembly according to claim 1, it is characterized in that, described cylinder assembly also comprises support, axle seal ring, needle bearing, dicyclo seal ring, buffering stage clip, stage clip positioning ring, support lid, large conical gear, small conical gear, big column gear, motor gear, support sealing gasket, motor shaft seal ring, stage clip thrust ring and " ⊥ " shape flat key.
3. cylinder assembly according to claim 2 is characterized in that, described axle is rubber with seal ring, dicyclo seal ring, support sealing gasket and motor shaft with the making material of seal ring.
4. cylinder assembly according to claim 1 is characterized in that, the main body of described impacting shaft is hollow step type cylindrical body, and central shaft hole is circular datum hole, and circular datum hole peripheral wall is provided with the five equilibrium rectangle groove.
5. cylinder assembly according to claim 1 is characterized in that, the main body of described cylinder axis cellular type multi-slot plank is that hollow step cylinder is tabular, and central shaft hole is circular datum hole, and circular datum hole peripheral wall is provided with the five equilibrium rectangle groove.
6. cylinder assembly according to claim 1 is characterized in that, described cylinder axis cellular type multi-slot plank is powder metallurgy structural part.
7. cylinder assembly according to claim 1 is characterized in that, the main body of described rear axle housing is hollow cylinder, and central shaft hole is circular datum hole, and circular datum hole front end is provided with a step type annulus hole, and circular datum hole peripheral wall is provided with the five equilibrium groove.
8. cylinder assembly according to claim 1 is characterized in that, described rear axle housing is powder metallurgy structural part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110158412 CN102200149B (en) | 2011-06-14 | 2011-06-14 | Air cylinder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110158412 CN102200149B (en) | 2011-06-14 | 2011-06-14 | Air cylinder device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102200149A CN102200149A (en) | 2011-09-28 |
| CN102200149B true CN102200149B (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110158412 Active CN102200149B (en) | 2011-06-14 | 2011-06-14 | Air cylinder device |
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| CN (1) | CN102200149B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002264040A (en) * | 2001-03-09 | 2002-09-18 | Hitachi Koki Co Ltd | Hammer drill |
| CN1301185C (en) * | 2004-04-26 | 2007-02-21 | 苏州宝时得电动工具有限公司 | Energy-storage impact mechanism of electric hammer |
| CN2712557Y (en) * | 2004-06-10 | 2005-07-27 | 南通普乐工具有限公司 | Hammer grade stopping and shifting device of electric hammer |
| JP4889564B2 (en) * | 2007-05-14 | 2012-03-07 | 株式会社マキタ | Impact tool |
| CN202144810U (en) * | 2011-06-14 | 2012-02-15 | 常熟市迅达粉末冶金有限公司 | Cylinder device |
-
2011
- 2011-06-14 CN CN 201110158412 patent/CN102200149B/en active Active
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| CN102200149A (en) | 2011-09-28 |
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