CN213616485U - Moment spanner capable of being adjusted continuously - Google Patents
Moment spanner capable of being adjusted continuously Download PDFInfo
- Publication number
- CN213616485U CN213616485U CN202022421544.9U CN202022421544U CN213616485U CN 213616485 U CN213616485 U CN 213616485U CN 202022421544 U CN202022421544 U CN 202022421544U CN 213616485 U CN213616485 U CN 213616485U
- Authority
- CN
- China
- Prior art keywords
- force
- shell
- transmission shaft
- steel ball
- bearing handle
- 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.)
- Active
Links
Images
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a continuously adjustable torque wrench, which comprises a shell, a cover plate, a force transmission shaft, a steel ball, a force application pressure spring, a force bearing handle and an adjusting screw rod; the semi-spherical grooves are uniformly distributed on the circumference of the side wall of the force transmission shaft, the shell is sleeved outside the force transmission shaft, the opening of the side wall of the shell is connected with a force bearing handle, the rear end of the inner cavity of the force bearing handle is in threaded connection with an adjusting screw rod, and the front end of the adjusting screw rod is connected with a steel ball through a force application pressure spring; the steel ball is clamped into the groove on the side wall of the force transmission shaft under the action of the elastic force of the spring, so that the force transmission shaft and the force bearing handle synchronously rotate, and the assembly part is screwed down; when the tightening force is too large, the steel ball slides out of the wrench groove, and the force transmission shaft cannot rotate relative to the assembly part when the force bearing handle is rotated. The axial position of the adjusting screw rod in the inner cavity of the bearing handle is adjusted to realize the adjustment of the slipping force of the steel ball. The utility model discloses a torque wrench satisfies different screw assembly parts and needs the use of different specific assembly moment.
Description
Technical Field
The utility model relates to a moment spanner that can adjust in succession belongs to screw assembly technical field.
Background
Many parts now require control of the axial compression of the coils during the threading operation, which is achieved by controlling the torque at which the coils are assembled. A dedicated controllable torque device is required for this purpose. The existing torque wrenches are classified according to models, and the measuring range of each torque wrench is certain. If the existing purchased torque wrench needs a plurality of types to meet different torque requirements in the assembling process, inconvenience is brought to use and cost control. For this reason, a device is needed which can control the adjusting torque in order to meet the requirements of use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the range of current moment spanner and fixing, the assembly demand of the different moment of unable adaptation provides a moment spanner that can adjust in succession for this reason.
The utility model aims at realizing through the following technical scheme:
the utility model relates to a continuously adjustable torque wrench, which comprises a shell, a cover plate, a force transmission shaft, a steel ball, a force application pressure spring, a force bearing handle and an adjusting screw rod;
the shell is a cylindrical part with an opening at the lower end, connecting threads are processed on the inner wall of the opening part of the opening end of the shell, and steel ball through holes are formed in the side wall of the shell;
the cover plate is of a disc-shaped structure, the side wall of the cover plate is provided with external threads matched with the threads of the opening part of the opening end of the shell, and the center of the cover plate is provided with a wrench hole;
the upper end of the force transmission shaft is a cylindrical section with the outer diameter matched with the inner diameter of the inner cavity of the shell, the side wall of the cylindrical section is provided with hemispherical grooves which are uniformly distributed on the circumference, and the center of the lower end surface of the cylindrical section vertically extends downwards to form a wrench rod;
the force bearing handle is a cylindrical structure with a threaded hole in the center;
the outer wall of the adjusting screw is provided with an external thread matched with the internal thread of the force bearing handle;
the cylindrical section of the force transmission shaft is inserted into the inner cavity of the shell, the lower end of the shell is screwed into the cover plate through threads, the upper end surface and the lower end surface of the cylindrical section of the force transmission shaft are clamped between the inner bottom at the upper end of the shell and the upper end surface of the cover plate, and the planes of all the hemispherical grooves on the side wall of the cylindrical section of the force transmission shaft are aligned with the steel ball through holes on the side wall of the shell; the left end of the bearing handle is radially fixed at the steel ball through hole on the side wall of the shell, so that the threaded inner hole of the bearing handle is communicated with the steel ball through hole on the side wall of the shell; the steel ball and the force application pressure spring are arranged in the threaded inner hole of the force bearing handle, the adjusting screw is screwed in from the rear end thread of the threaded inner hole of the force bearing handle, and the adjusting screw tightly pushes the steel ball to move towards one side of the force transmission shaft through the force application pressure spring.
The torque wrench also comprises a protective handle, the protective handle is a cylindrical sleeve with openings at two ends, and a connecting thread is processed on the inner wall of the opening part of the protective handle; the outer wall of the right end of the force bearing handle is provided with a connecting thread; the mouth of the protective handle is in butt joint with the right end thread of the bearing handle, and an adjusting screw rod extending out of the rear end of the thread inner hole of the bearing handle is protected.
Advantageous effects
The utility model discloses a torque wrench simple structure, convenient to use has realized providing fixed assembly moment to the spare part to fixed moment is adjustable in succession, satisfies the use needs of different screw assembly parts to different specific assembly moment.
Drawings
Fig. 1 is a schematic structural view of the assembly fixture of the present invention;
in the figure, 1-cover plate; 2-a shell; 3-a force transmission shaft; 4-steel ball; 5-a force application spring; 6-bearing handle; 7-adjusting the screw; 8-protective handle.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Examples
The utility model relates to a continuously adjustable torque wrench, as shown in figure 1, comprising a shell 2, a cover plate 1, a force transmission shaft 3, a steel ball 4, a force application pressure spring 5, a force bearing handle 6, an adjusting screw 7 and a protective handle 8;
the shell 2 is a cylindrical part with an opening at the lower end, a connecting thread is processed on the inner wall of the opening part of the opening end of the shell 2, and a steel ball through hole is formed in the side wall of the shell 2;
the cover plate 1 is of a disc-shaped structure, the side wall of the disc-shaped structure is provided with external threads matched with the threads of the opening part of the opening end of the shell 2, and the center of the cover plate 1 is provided with a wrench hole;
the upper end of the force transmission shaft 3 is a cylindrical section with the outer diameter matched with the inner diameter of the inner cavity of the shell 2, the side wall of the cylindrical section is provided with hemispherical grooves which are uniformly distributed on the circumference, and the center of the lower end surface of the cylindrical section vertically extends downwards to form a wrench rod;
the force bearing handle 6 is a cylindrical structure with a threaded hole in the center, and the outer wall of the right end of the force bearing handle 6 is provided with a connecting thread;
the outer wall of the adjusting screw 7 is provided with an external thread matched with the internal thread of the force bearing handle 6;
the protective handle 8 is a cylindrical sleeve with openings at two ends, and the inner wall of the opening part of the protective handle 8 is processed with connecting threads;
the cylindrical section of the force transmission shaft 3 is inserted into the inner cavity of the shell 2, the lower end thread of the shell 2 is screwed into the cover plate 1, the upper end surface and the lower end surface of the cylindrical section of the force transmission shaft 3 are clamped between the inner bottom of the upper end of the shell 2 and the upper end surface of the cover plate 1, and the planes of all hemispherical grooves on the side wall of the cylindrical section of the force transmission shaft 3 are aligned with the steel ball through holes on the side wall of the shell 2; the left end of the bearing handle 6 is radially fixed at the steel ball through hole on the side wall of the shell 2, so that the threaded inner hole of the bearing handle 6 is communicated with the steel ball through hole on the side wall of the shell 2; a steel ball 4 and a force application pressure spring 5 are arranged in a threaded inner hole of a force bearing handle 6, an adjusting screw 7 is screwed in from the rear end thread of the threaded inner hole of the force bearing handle 6, and the adjusting screw 7 tightly pushes the steel ball 4 to move towards one side of a force transmission shaft 3 through the force application pressure spring 5; the mouth of the protective handle 8 is in butt joint with the right end thread of the bearing handle 6 to protect the adjusting screw 7 extending out of the rear end of the thread inner hole of the bearing handle 6.
Working process
A wrench rod of the force transmission shaft 3 is inserted into a wrench hole of a part, a force bearing handle 6 is rotated along the horizontal direction, so that a steel ball 4 in an inner cavity of the handle is aligned with any one hemispherical groove in the side wall of the cylindrical section of the force transmission shaft 3, the steel ball 4 is clamped into the hemispherical groove in the side wall of the cylindrical section of the force transmission shaft 3 under the elastic action of a force application pressure spring 5, the force transmission shaft 3 and the handle synchronously rotate, and the assembled part is screwed down; along with the assembly, the required tightening torque is larger and larger, when the force bearing handle 6 rotates in the horizontal direction, the radial component force generated by the force bearing handle 6 to the steel ball 4 and slipping out of the hemispherical groove on the side wall of the cylindrical section of the force transmission shaft 3 is larger than the elastic force provided by the force application pressure spring 5, the steel ball 4 slips out of the hemispherical groove on the side wall of the cylindrical section of the force transmission shaft 3, the force bearing handle 6 rotates in the horizontal direction again, the force bearing handle 6 rotates relative to the force transmission shaft 3, and the force transmission shaft 3 cannot rotate relative to the assembly part; when the elasticity of the force application pressure spring 5 is adjusted, the protective handle 8 is detached, the axial position of the adjusting screw 7 in the inner cavity of the handle is adjusted by rotating the adjusting screw 7 along the vertical direction, and then the steel ball 4 is matched with the radial component force of the slippage of the steel ball 4 caused by the elasticity of the force application pressure spring 5 at the rear end and the hemispherical groove in the cylindrical section side wall of the force transmission shaft 3 under the maximum assembly moment, so that the wrench can provide fixed assembly moment for the assembly parts.
Claims (2)
1. A torque wrench capable of being continuously adjusted is characterized in that: comprises a shell, a cover plate, a force transmission shaft, a steel ball, a force application pressure spring, a force bearing handle and an adjusting screw rod;
the shell is a cylindrical part with an opening at the lower end, connecting threads are processed on the inner wall of the opening part of the opening end of the shell, and steel ball through holes are formed in the side wall of the shell;
the cover plate is of a disc-shaped structure, the side wall of the cover plate is provided with external threads matched with the threads of the opening part of the opening end of the shell, and the center of the cover plate is provided with a wrench hole;
the upper end of the force transmission shaft is a cylindrical section with the outer diameter matched with the inner diameter of the inner cavity of the shell, the side wall of the cylindrical section is provided with hemispherical grooves which are uniformly distributed on the circumference, and the center of the lower end surface of the cylindrical section vertically extends downwards to form a wrench rod;
the force bearing handle is a cylindrical structure with a threaded hole in the center;
the outer wall of the adjusting screw is provided with an external thread matched with the internal thread of the force bearing handle;
the cylindrical section of the force transmission shaft is inserted into the inner cavity of the shell, the lower end of the shell is screwed into the cover plate through threads, the upper end surface and the lower end surface of the cylindrical section of the force transmission shaft are clamped between the inner bottom at the upper end of the shell and the upper end surface of the cover plate, and the planes of all the hemispherical grooves on the side wall of the cylindrical section of the force transmission shaft are aligned with the steel ball through holes on the side wall of the shell; the left end of the bearing handle is radially fixed at the steel ball through hole on the side wall of the shell, so that the threaded inner hole of the bearing handle is communicated with the steel ball through hole on the side wall of the shell; the steel ball and the force application pressure spring are arranged in the threaded inner hole of the force bearing handle, the adjusting screw is screwed in from the rear end thread of the threaded inner hole of the force bearing handle, and the adjusting screw tightly pushes the steel ball to move towards one side of the force transmission shaft through the force application pressure spring.
2. A continuously adjustable torque wrench as claimed in claim 1, wherein: the torque wrench also comprises a protective handle, the protective handle is a cylindrical sleeve with openings at two ends, and a connecting thread is processed on the inner wall of the opening part of the protective handle; the outer wall of the right end of the force bearing handle is provided with a connecting thread; the mouth of the protective handle is in butt joint with the right end thread of the bearing handle, and an adjusting screw rod extending out of the rear end of the thread inner hole of the bearing handle is protected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022421544.9U CN213616485U (en) | 2020-10-27 | 2020-10-27 | Moment spanner capable of being adjusted continuously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022421544.9U CN213616485U (en) | 2020-10-27 | 2020-10-27 | Moment spanner capable of being adjusted continuously |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213616485U true CN213616485U (en) | 2021-07-06 |
Family
ID=76626159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022421544.9U Active CN213616485U (en) | 2020-10-27 | 2020-10-27 | Moment spanner capable of being adjusted continuously |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213616485U (en) |
-
2020
- 2020-10-27 CN CN202022421544.9U patent/CN213616485U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206982549U (en) | A kind of electric screw driver of antistatic | |
| CN213616485U (en) | Moment spanner capable of being adjusted continuously | |
| CN103410901B (en) | Spring damping vibration absorber | |
| CN213828811U (en) | Moment continuous adjusting device | |
| CN106335321B (en) | A kind of lug nut clamp device | |
| CN205001399U (en) | Biax cover shaft coupling | |
| CN104827341A (en) | Compressive overload protection device | |
| CN214560409U (en) | Preset torque ratchet wrench | |
| CN203374719U (en) | Spring damping shock absorber | |
| CN212218318U (en) | Portable screw nut equipment | |
| CN213673848U (en) | Preset torque wrench | |
| CN213703236U (en) | Electric tool with torsion adjusting and converting interface piece | |
| CN209838992U (en) | Compact clutch with adjustable torque | |
| CN209520821U (en) | A kind of adjustable torque screwdriver | |
| CN211163731U (en) | Universal sleeve with self-sealing washer positioning | |
| CN107081707A (en) | A kind of torsion ring for being used to determine torsion | |
| CN210290231U (en) | Combined overspeed test tool for compressed air impeller of steam compressor | |
| CN207915352U (en) | Electric screw driver | |
| CN207629933U (en) | Hexagonal jacket torque spanner in a kind of municipal administration equipment aerodynamic type | |
| CN206028928U (en) | Screw tap lengthening sleeve | |
| CN218503249U (en) | Feeding wheel locking device of cold header | |
| CN220241304U (en) | Universal sleeve convenient to use | |
| CN219853105U (en) | Torque adjusting and torque quantifying device | |
| CN105048187B (en) | A kind of adjustable handwheel of moment of torsion | |
| CN215720899U (en) | Rotating shaft mechanism capable of limiting angle for range hood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |