CN210678520U - Impact wrench without variable-speed transmission mechanism - Google Patents
Impact wrench without variable-speed transmission mechanism Download PDFInfo
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- CN210678520U CN210678520U CN201921731700.2U CN201921731700U CN210678520U CN 210678520 U CN210678520 U CN 210678520U CN 201921731700 U CN201921731700 U CN 201921731700U CN 210678520 U CN210678520 U CN 210678520U
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- outer rotor
- striking block
- motor
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Abstract
The utility model discloses an impact wrench without a variable speed transmission mechanism, which comprises a shell and an outer rotor motor; the front end of the shell is provided with an oil seal; an outer rotor motor is arranged in the shell; the right end of the outer rotor motor is provided with a bearing, and the left end of the outer rotor motor is provided with an intermediate shaft; the left end of the middle shaft is inserted in the middle of the striking block; the left end of the striking block is provided with a T-shaped shaft; the outer rotor motor comprises an outer rotor, an inner stator and a motor shaft; an outer rotor is arranged outside the inner stator, and a motor shaft is transversely arranged in the middle of the inner stator; the left end of the motor shaft is embedded in the middle of the intermediate shaft, and the right end of the motor shaft is connected with the bearing; a spring is sleeved outside the middle shaft; convex platforms are symmetrically arranged on the left end surface of the striking block; the striking block is clamped and connected with the T-shaped shaft through the convex platform; the transverse shaft of the T-shaped shaft is clamped on the striking block. The utility model discloses an external rotor motor not only need set up the variable speed drive gear, and the electric current is little moreover, and it is less to consume energy in the use, has extensive suitability.
Description
Technical Field
The utility model relates to an impact wrench especially relates to an impact wrench who does not take variable speed drive mechanism.
Background
The impact wrench is a common electric tool, and the main working principle of the impact wrench is that a driving impact block in a mechanism continuously strikes a driven impact block at the front part, so that a large torque is generated, and screws or nuts which are difficult to strike can be tightened. The impact wrench is a tool for screwing screws, bolts, clamps and the like, and can be matched with working heads of different types to meet different working requirements due to wide application, and the whole mechanism can generate great heat during working due to very large impact torque generated by the impact wrench. The impact wrench used in the field of the current electric tools uses an inner rotor motor, needs to be provided with a variable-speed transmission mechanism, has abrasion of the variable-speed transmission mechanism, not only has high rotating speed and large current, but also has large energy consumption in the using process, and causes the battery pack of the portable tool to have non-lasting endurance.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides an impact wrench without a variable speed transmission mechanism.
In order to solve the technical problem, the utility model discloses a technical scheme is: an impact wrench without a variable-speed transmission mechanism comprises a machine shell and an outer rotor motor; the front end of the shell is provided with an oil seal; an outer rotor motor is arranged in the shell; the right end of the outer rotor motor is provided with a bearing, and the left end of the outer rotor motor is provided with an intermediate shaft; the left end of the middle shaft is inserted in the middle of the striking block; the left end of the striking block is provided with a T-shaped shaft;
the outer rotor motor comprises an outer rotor, an inner stator and a motor shaft; an outer rotor is arranged outside the inner stator, and a motor shaft is transversely arranged in the middle of the inner stator; the left end of the motor shaft is embedded in the middle of the intermediate shaft, and the right end of the motor shaft is connected with the bearing;
a spring is sleeved outside the middle shaft; convex platforms are symmetrically arranged on the left end surface of the striking block; the striking block is clamped and connected with the T-shaped shaft through the convex platform; the transverse shaft of the T-shaped shaft is clamped on the striking block.
The spring is sleeved outside the intermediate shaft; the left end of the spring is connected with a limiting steel ball in the striking block, and the right end of the spring is connected with a step surface at the right end of the middle shaft in a fastening way.
An iron sleeve is sleeved outside the T-shaped shaft; the iron sleeve is tightly connected with the head shell through a steel wire clamp spring; the head shell is fixedly connected with the machine shell.
And a gasket is arranged between the T-shaped shaft and the iron sleeve in a matching manner.
The middle part of the striking block is provided with a hole; the middle shaft passes through the middle part of the striking block and extends into a round hole at the bottom of the T-shaped shaft.
A switch is arranged below the outer rotor motor; the lower end of the switch is provided with a handle; the bottom of the handle is connected with the power supply in a matching way.
The utility model discloses an external rotor motor, not only the moment of torsion is big, need not set up the variable speed drive gear, and the electric current is little moreover, and it is less to consume energy in the use, has realized that the battery package of portable instrument is a long time to continue a journey, has extensive suitability.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional view of fig. 1.
In the figure: 1. a head shell; 2. a T-shaped shaft; 3. an intermediate shaft; 4. a motor shaft; 5. an outer rotor; 6. an inner stator; 7. a housing; 8. a bearing; 9. oil sealing; 10. an iron sleeve; 11. a steel wire clamp spring; 12. a gasket; 13. a striking block; 14. a spring; 15. and (4) switching.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The impact wrench without the variable speed transmission mechanism as shown in fig. 1 and 2 comprises a housing 7 and an outer rotor motor; the front end of the machine shell 7 is provided with an oil seal 9; the oil seal is made of high-temperature-resistant fluorine glue. The high-temperature-resistant fluorine rubber oil seal can effectively solve the problem that oil enters the motor due to oil leakage in the working process of the impact wrench, and prevent the oil from entering the motor. An outer rotor motor is arranged in the machine shell 7; the right end of the outer rotor motor is provided with a bearing 8, and the left end is provided with an intermediate shaft 3; the left end of the intermediate shaft 3 is inserted in the middle of the striking block 13; the left end of the striking block 13 is provided with a T-shaped shaft 2; t type axle 2 is connected with the nut that needs to twist, and jackshaft 3 rotates and drives strikes piece 13 and rotate, strikes piece 13 and rotates, produces hitting power, transmits to T type axle 2 and rotates, and when T type axle 2 rotated motionless, will pop out strikes piece 13, then falls back to again and strikes in piece 13's the protruding type platform, along with rotating, realizes twisting the function of nut.
The outer rotor motor comprises an outer rotor 5, an inner stator 6 and a motor shaft 4; an outer rotor 5 is arranged outside the inner stator 6, and a motor shaft 4 is transversely arranged in the middle of the inner stator; the left end of the motor shaft 4 is embedded in the middle of the intermediate shaft 3, and the right end of the motor shaft is connected with the bearing 8; the outer rotor motor does not adopt a variable speed transmission mechanism and directly drives output. The outer rotor motor has large torque and small rotating speed, and does not need gear transmission, thereby reducing the friction force and saving the production cost.
A spring 14 is sleeved outside the intermediate shaft 3; the spring 14 is sleeved outside the intermediate shaft 3; the left end of the spring 14 is connected with a limiting steel ball in the striking block 13, and the right end is connected with a step surface at the right end of the intermediate shaft 3 in a fastening way. The striking block 13 is sleeved outside the spring 14, and the spring 14 is connected with a limiting steel ball in the striking block 13 to prevent the spring 14 from popping out of a hole in the middle of the striking block 13.
Convex platforms are symmetrically arranged on the left end surface of the striking block 13; the striking block 13 is clamped and connected with the T-shaped shaft 2 through a convex platform; the transverse shaft of the T-shaped shaft 2 is clamped on the striking block 13. The middle part of the striking block 13 is provided with a hole; the middle shaft 3 passes through the middle part of the striking block 13 and extends into a round hole at the bottom of the T-shaped shaft 2. The middle shaft 3 is not contacted with the round hole at the bottom of the T-shaped shaft 2.
An iron sleeve 10 is sleeved outside the T-shaped shaft 2; the iron sleeve 10 is sleeved outside the T-shaped shaft 2 to increase the wear resistance. The iron sleeve 10 is tightly connected with the head shell 1 through a steel wire clamp spring 11; the head shell 1 is fixedly connected with the machine shell 7. A gasket 12 is arranged between the T-shaped shaft 2 and the iron sleeve 10 in a matching way. The gasket 12 serves to prevent wear.
A switch 15 is arranged below the outer rotor motor; the switch 15 is connected to the external rotor motor. The lower end of the switch 15 is provided with a handle; the bottom of the handle is connected with the power supply in a matching way. The design can be connected with an alternating current power supply and a direct current power supply.
The utility model discloses a working process does: t type axle 2 is connected with the nut that needs to be twisted, open switch 15, start the external rotor motor, motor shaft 4 rotates and drives jackshaft 3 and rotate, jackshaft 3 rotates and drives strike piece 13 and rotate, produce the hitting power, transmit to T type axle 2 and rotate, T type axle 2 rotates and drives the nut and rotate, when T type axle 2 rotates motionlessly, will pop out strike piece 13, then fall back to again and strike in the protruding type platform of piece 13, along with rotating, thereby realize twisting the function of nut.
The utility model discloses a set up the external rotor motor, the external rotor motor does not adopt variable speed drive mechanism, and direct drive exports, and not only effectual reduction resistance improves efficiency to no variable speed drive mechanism has avoided variable speed drive mechanism's wearing and tearing, also need lubricating grease auxiliary lubrication, the effectual cost that has reduced, the external rotor motor has characteristics such as low rotational speed moment of torsion is big simultaneously, has reduced frictional force. In addition, the design structure is simple, the operation is convenient, and the brushless alternating current-direct current wrench can be widely suitable for all outer rotor brushless alternating current-direct current wrenches.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (6)
1. An impact wrench without a variable speed drive comprising a housing (7), characterized in that: it also includes an outer rotor motor; the front end of the shell (7) is provided with an oil seal (9); an outer rotor motor is arranged in the machine shell (7); the right end of the outer rotor motor is provided with a bearing (8), and the left end of the outer rotor motor is provided with an intermediate shaft (3); the left end of the middle shaft (3) is inserted in the middle of the striking block (13); the left end of the striking block (13) is provided with a T-shaped shaft (2);
the outer rotor motor comprises an outer rotor (5), an inner stator (6) and a motor shaft (4); an outer rotor (5) is arranged outside the inner stator (6), and a motor shaft (4) is transversely arranged in the middle of the inner stator; the left end of the motor shaft (4) is embedded in the middle of the intermediate shaft (3), and the right end of the motor shaft is connected with the bearing (8);
a spring (14) is sleeved outside the intermediate shaft (3); convex tables are symmetrically arranged on the left end surface of the striking block (13); the striking block (13) is clamped and connected with the T-shaped shaft (2) through the convex platform; the transverse shaft of the T-shaped shaft (2) is clamped on the striking block (13).
2. The impact wrench without a variable speed drive as claimed in claim 1, wherein: the spring (14) is sleeved outside the intermediate shaft (3); the left end of the spring (14) is connected with a limiting steel ball in the striking block (13), and the right end is connected with a step surface at the right end of the intermediate shaft (3) in a fastening way.
3. The impact wrench without a variable speed drive as claimed in claim 2, wherein: an iron sleeve (10) is sleeved outside the T-shaped shaft (2); the iron sleeve (10) is tightly connected with the head shell (1) through a steel wire clamp spring (11); the head shell (1) is fixedly connected with the machine shell (7).
4. The impact wrench without a variable speed drive as claimed in claim 3, wherein: a gasket (12) is arranged between the T-shaped shaft (2) and the iron sleeve (10) in a matching mode.
5. The impact wrench without a variable speed drive as claimed in claim 4, wherein: the middle part of the striking block (13) is provided with a hole; the middle shaft (3) penetrates through the middle part of the striking block (13) and extends into a round hole in the bottom of the T-shaped shaft (2).
6. The impact wrench without a variable speed drive according to any one of claims 1-5, wherein: a switch (15) is arranged below the outer rotor motor; the lower end of the switch (15) is provided with a handle; the bottom of the handle is connected with the power supply in a matching way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921731700.2U CN210678520U (en) | 2019-10-16 | 2019-10-16 | Impact wrench without variable-speed transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921731700.2U CN210678520U (en) | 2019-10-16 | 2019-10-16 | Impact wrench without variable-speed transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210678520U true CN210678520U (en) | 2020-06-05 |
Family
ID=70882610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921731700.2U Active CN210678520U (en) | 2019-10-16 | 2019-10-16 | Impact wrench without variable-speed transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210678520U (en) |
-
2019
- 2019-10-16 CN CN201921731700.2U patent/CN210678520U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226100 No.88 tieanchor Road, Binhai New Area, Haimen City, Nantong City, Jiangsu Province Patentee after: Jiangsu anchor Tools Co.,Ltd. Address before: 226100 No.88 tieanchor Road, Binhai New Area, Haimen City, Nantong City, Jiangsu Province Patentee before: JIANGSU ANCHOR TOOLS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230809 Address after: 226100 Room 10, No. 88 Tiebao Road, Baochang Town, Haimen District, Nantong City, Jiangsu Province Patentee after: Jiangsu Tengya Iron Anchor Tool Co.,Ltd. Address before: 226100 No.88 tieanchor Road, Binhai New Area, Haimen City, Nantong City, Jiangsu Province Patentee before: Jiangsu anchor Tools Co.,Ltd. |
|
| TR01 | Transfer of patent right |