CN220719212U - Intermediate shaft for electric hammer - Google Patents
Intermediate shaft for electric hammer Download PDFInfo
- Publication number
- CN220719212U CN220719212U CN202322399353.0U CN202322399353U CN220719212U CN 220719212 U CN220719212 U CN 220719212U CN 202322399353 U CN202322399353 U CN 202322399353U CN 220719212 U CN220719212 U CN 220719212U
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- Prior art keywords
- connector
- opening
- electric hammer
- separation part
- connecting body
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- 238000000926 separation method Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000001771 impaired effect Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses an intermediate shaft for an electric hammer, which comprises a shaft body, wherein the shaft body is arranged in a machine body of the electric hammer, and is provided with a threaded hole used for installing a screw and a gasket. The shaft body is provided with a first opening and a second opening, the first opening is communicated with the threaded hole and the second opening, the second opening is arranged at the end part of the shaft body, the first opening is in a cylindrical shape, and the second opening is in a truncated cone shape. When installing screw and gasket, the gasket sinks in opening one, and the end of screw sinks in opening two, and screw threaded connection is in the screw hole simultaneously, can hide screw and gasket in jackshaft's tip department, need not to reserve the pilot hole of screw and gasket in the fuselage department of electric hammer, reduces the impaired risk of fuselage structure in the manufacturing process of electric hammer.
Description
Technical Field
The utility model belongs to the technical field of electric tools, and particularly relates to an intermediate shaft for an electric hammer.
Background
The electric hammer is an electric tool and is one type of electric drills. The electric hammer specifically uses the swing rod bearing to drive the piston to move, the compressed gas impacts the drill bit, and the electric hammer can open holes in hard materials such as concrete, bricks, stones and the like without needing great force of hands.
The current electric hammer mainly includes components such as motor, drive mechanism, impact mechanism and chuck, and drive mechanism includes: the motor is in transmission connection with the intermediate shaft, the swing rod bearing and the intermediate gear are sleeved on the intermediate shaft, and the swing rod bearing and the intermediate gear can rotate together with the intermediate shaft.
The prior art discloses an utility model patent application named electric hammer (application publication number: CN 107627263A), which realizes small volume under the condition of ensuring the working efficiency to be basically unchanged. The screw and the gasket are arranged at the end part of the intermediate shaft, however, the screw and the gasket are exposed outside the end part of the intermediate shaft, and the machine body of the electric hammer is required to be reserved with the assembly holes of the screw and the gasket, so that the machine body structure of the electric hammer is easy to damage in the manufacturing process.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art and provide the intermediate shaft for the electric hammer, which can hide the screw and the gasket at the end part of the intermediate shaft, and the assembly holes of the screw and the gasket are not required to be reserved at the machine body of the electric hammer, so that the risk of damage of the machine body structure of the electric hammer in the manufacturing process is reduced.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a jackshaft for electric hammer, includes the axis body, and the axis body is installed in the fuselage of electric hammer, and the axis body is equipped with the screw hole, and the screw hole is used for installing screw and gasket. The method is characterized in that: the shaft body is provided with a first opening and a second opening, the first opening is communicated with the threaded hole and the second opening, the second opening is arranged at the end part of the shaft body, the first opening is in a cylindrical shape, and the second opening is in a truncated cone shape. When installing screw and gasket, the gasket sinks in opening one, and the end of screw sinks in opening two, and screw threaded connection is in the screw hole simultaneously, can hide screw and gasket in jackshaft's tip department, need not to reserve the pilot hole of screw and gasket in the fuselage department of electric hammer, reduces the impaired risk of fuselage structure in the manufacturing process of electric hammer.
Furthermore, according to the connection of the shaft body and different parts, the shaft body is specifically designed: the shaft body comprises a first connector, a second connector and a third connector which are sequentially connected, wherein the first connector, the second connector and the third connector are all in a cylindrical shape, the first connector is used for connecting an input gear, the second connector is used for connecting a swing rod bearing, the third connector is used for connecting an output gear, a separation part is arranged between the first connector and the second connector, the separation part is in a cylindrical shape, the sectional area of the separation part is larger than that of the first connector, the sectional area of the separation part is larger than that of the second connector, and the separation part is arranged between the input gear and the swing rod bearing, so that the input gear and the swing rod bearing are relatively independent and are not influenced by each other.
Further, the first connecting body is provided with the first notch, and the first notch is arranged on one side of the separation part, so that the caliber of the joint between the first connecting body and the separation part is reduced, the input gear is convenient to install, and the input gear is propped against the separation part. Meanwhile, the second connector is provided with a notch II which is arranged on the other side of the separation part, so that the caliber of the joint between the second connector and the separation part is reduced, the swing rod bearing is convenient to install, and the swing rod bearing is propped against the separation part.
Furthermore, the end parts of the first connector, the second connector, the third connector and the separation part are respectively provided with an inclined plane, so that the diameters of the end parts of the first connector, the second connector, the third connector and the separation part are reduced, and the damage to the structure caused by the concentration of the stress of the end parts of the first connector, the second connector, the third connector and the separation part is avoided.
Further, the first connecting body is provided with a mounting surface, the two mounting surfaces are symmetrically arranged in parallel along the axis of the first connecting body, edges are formed on the side portion of the first connecting body, the mounting surface is clamped, the shaft body is conveniently limited, and the screw and the gasket are quickly mounted.
Furthermore, the second connecting body is provided with a notch, and lubricant can be filled in the notch, so that the swing rod bearing rotates smoothly.
Further, the third connecting body is provided with a third notch, the third notch is arranged on one side of the second connecting body, and the output gear is propped against the second connecting body, so that the caliber of the joint between the third connecting body and the second connecting body is reduced, and the output gear is convenient to install.
Further, the third connecting body is provided with a fourth connecting body which is in a cylindrical shape, the diameter of the fourth connecting body is smaller than that of the third connecting body, and the end cover can be arranged on the fourth connecting body to protect the end part of the shaft body.
Further, the shaft body is of an integrated structure, so that the shaft body is convenient to cast and form integrally.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the utility model, when the screw and the gasket are installed, the gasket is sunk into the first opening, the end of the screw is sunk into the second opening, and meanwhile, the screw is connected in the threaded hole in a threaded manner, so that the screw and the gasket can be hidden at the end part of the intermediate shaft, the assembly holes of the screw and the gasket are not required to be reserved at the machine body of the electric hammer, and the risk of damage of the machine body structure of the electric hammer in the manufacturing process is reduced.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of a structure of an intermediate shaft for an electric hammer according to the present utility model;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
fig. 4 is a right side view of fig. 2.
In the figure, A-Axis; 1-first linker; 2-connector II; 3-linker three; 4-a threaded hole; 5-opening one; 6-opening two; 7-mounting surface; 8-dividing part; 9-notch three; 10-linker IV; 11-notch one; 12-notch II; 13-slots; 14-inclined plane.
Detailed Description
As shown in fig. 1 to 4, the intermediate shaft for an electric hammer according to the present utility model includes a shaft body a, which is an integrally formed structure, and is conveniently integrally cast and formed, and is installed in a body of the electric hammer, the shaft body a is provided with a threaded hole 4, and the threaded hole 4 is used for installing a screw and a spacer.
The shaft body a is provided with a first opening 5 and a second opening 6, the first opening 5 is communicated with the threaded hole 4 and the second opening 6, the second opening 6 is arranged at the end part of the shaft body a, the first opening 5 is in a cylindrical shape, and the second opening 6 is in a truncated cone shape. When installing screw and gasket, the gasket sinks in opening one 5, and the end of screw sinks in opening two 6, and screw threaded connection is in screw hole 4 simultaneously, can hide screw and gasket in jackshaft's tip department, need not to reserve the pilot hole of screw and gasket in the fuselage department of electric hammer, reduces the impaired risk of fuselage structure in the manufacturing process of electric hammer.
According to the connection of the shaft body a and different parts, the shaft body a is specifically designed: the shaft body a comprises a first connector 1, a second connector 2 and a third connector 3 which are sequentially connected, wherein the first connector 1, the second connector 2 and the third connector 3 are all in cylindrical shapes, the first connector 1 is used for connecting an input gear, the second connector 2 is used for connecting a swing rod bearing, the third connector 3 is used for connecting an output gear, a separation part 8 is arranged between the first connector 1 and the second connector 2, the separation part 8 is in cylindrical shapes, the sectional area of the separation part 8 is larger than the sectional area of the first connector 1, the sectional area of the separation part 8 is larger than the sectional area of the second connector 2, and the separation part 8 is arranged between the input gear and the swing rod bearing, so that the input gear and the swing rod bearing are relatively independent and are not mutually influenced.
The first connecting body 1 is provided with the first notch 11, and the first notch 11 is arranged on one side of the separation part 8, so that the caliber of the joint between the first connecting body 1 and the separation part 8 is reduced, the input gear is convenient to install, and the input gear abuts against the separation part 8. Meanwhile, the second connector 2 is provided with a second notch 12, and the second notch 12 is arranged on the other side of the partition 8, so that the caliber of the joint between the second connector and the partition 8 is reduced, the swing rod bearing is convenient to install, and the swing rod bearing is propped against the partition 8. The third connecting body 3 is provided with the third notch 9, and the third notch 9 is arranged on one side of the second connecting body 2, so that the output gear is propped against the second connecting body 2, the caliber of the joint between the third connecting body 3 and the second connecting body 2 is reduced, and the output gear is convenient to install.
The third connecting body 3 is provided with the fourth connecting body 10, the fourth connecting body 10 is in a cylindrical shape, the diameter of the fourth connecting body 10 is smaller than that of the third connecting body 3, and an end cover can be arranged on the fourth connecting body 10 to protect the end part of the shaft body a.
The end parts of the first connector 1, the second connector 2, the third connector 3 and the separation part 8 are respectively provided with an inclined surface 14, and the fourth connector 10 can be also provided with the inclined surface 14, so that the end diameters of the first connector 1, the second connector 2, the third connector 3, the separation part 8 and the fourth connector 10 are reduced, and the damage to the structure caused by the concentration of the end stress of the first connector 1, the second connector 2, the third connector 3, the separation part 8 and the fourth connector 10 is avoided.
The first connecting body 1 is provided with the mounting surface 7, and the two mounting surfaces 7 are symmetrically arranged in parallel along the axis of the first connecting body 1, so that edges are formed on the side part of the first connecting body 1, the shaft body a is conveniently limited by clamping the mounting surface 7, and screws and gaskets are quickly mounted.
The second connector 2 is provided with a notch 13, and a lubricant can be filled in the notch 13, so that the swing rod bearing rotates smoothly.
The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.
Claims (9)
1. An intermediate shaft for an electric hammer comprises a shaft body, wherein the shaft body is arranged in a machine body of the electric hammer;
the shaft body is provided with a threaded hole, and the threaded hole is used for installing a screw and a gasket;
the method is characterized in that: the shaft body is provided with a first opening and a second opening, the first opening is communicated with the threaded hole and the second opening, and the second opening is arranged at the end part of the shaft body;
the first opening is in a cylindrical shape, and the first opening is used for sinking the gasket;
the second opening is in a truncated cone shape and is used for sinking the end head of the screw.
2. The intermediate shaft for an electric hammer according to claim 1, wherein: the shaft body comprises a first connector, a second connector and a third connector which are sequentially connected, wherein the first connector, the second connector and the third connector are in cylindrical shapes, the first connector is used for connecting an input gear, the second connector is used for connecting a swing rod bearing, the third connector is used for connecting an output gear, a separation part is arranged between the first connector and the second connector, the separation part is in cylindrical shapes, the sectional area of the separation part is larger than that of the first connector, the sectional area of the separation part is larger than that of the second connector, and the separation part is arranged between the input gear and the swing rod bearing.
3. The intermediate shaft for an electric hammer according to claim 2, wherein: the first connecting body is provided with a first notch, the first notch is arranged on one side of the separation part, so that the input gear abuts against the separation part, meanwhile, the second connecting body is provided with a second notch, and the second notch is arranged on the other side of the separation part, so that the swing rod bearing abuts against the separation part.
4. A jackshaft for an electric hammer as set forth in claim 3, wherein: the end parts of the first connector, the second connector, the third connector and the separation part are respectively provided with an inclined plane, so that the diameters of the end parts of the first connector, the second connector, the third connector and the separation part are reduced.
5. The intermediate shaft for an electric hammer according to claim 2, wherein: the first connecting body is provided with a mounting surface, and two mounting surfaces are symmetrically arranged in parallel along the axis of the first connecting body, so that the side part of the first connecting body forms an edge.
6. The intermediate shaft for an electric hammer according to claim 2, wherein: and the second connector is provided with a notch.
7. The intermediate shaft for an electric hammer according to claim 2, wherein: the third connecting body is provided with a third notch, and the third notch is arranged on one side of the second connecting body, so that the output gear abuts against the second connecting body.
8. The intermediate shaft for an electric hammer according to claim 2, wherein: the third connecting body is provided with a fourth connecting body which is in a cylindrical shape, and the diameter of the fourth connecting body is smaller than that of the third connecting body.
9. The intermediate shaft for an electric hammer according to claim 1, wherein: the shaft body is of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322399353.0U CN220719212U (en) | 2023-09-04 | 2023-09-04 | Intermediate shaft for electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322399353.0U CN220719212U (en) | 2023-09-04 | 2023-09-04 | Intermediate shaft for electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220719212U true CN220719212U (en) | 2024-04-05 |
Family
ID=90487914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322399353.0U Active CN220719212U (en) | 2023-09-04 | 2023-09-04 | Intermediate shaft for electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220719212U (en) |
-
2023
- 2023-09-04 CN CN202322399353.0U patent/CN220719212U/en active Active
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| GR01 | Patent grant |