CN220389279U - Torsion conversion tool for narrow space - Google Patents
Torsion conversion tool for narrow space Download PDFInfo
- Publication number
- CN220389279U CN220389279U CN202321905975.XU CN202321905975U CN220389279U CN 220389279 U CN220389279 U CN 220389279U CN 202321905975 U CN202321905975 U CN 202321905975U CN 220389279 U CN220389279 U CN 220389279U
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- gear
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- hollow gear
- transmission
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a torque conversion tool for a narrow space, which comprises a shell, a transmission shaft, a first hollow gear, a second hollow gear, a first transmission gear, a second transmission gear and a sleeve, wherein the transmission shaft is arranged in the shell in a bearing connection mode; the first transmission gear and the second transmission gear are respectively sleeved at two ends of the transmission shaft, the first transmission gear and the second transmission gear are coaxially arranged, and the sleeve is arranged inside the second hollow gear and can be matched with an external fastener; the first hollow gear is rotatably arranged on the outer side surface of one end of the shell and is meshed with the first transmission gear at 90 degrees; the inner side surface of the first hollow gear can be matched with an external rotating mechanism, and the second hollow gear is rotatably arranged on the outer side surface of the other end of the shell and is meshed with the second transmission gear at 90 degrees; the hollow gear inner nested cylinder structure is adopted, the total length is short, the hollow gear inner nested cylinder structure is more suitable for a narrow space, when the hollow gear inner nested cylinder structure is used, the outer shell is held by a left hand, the torque transmission can be completed by operating the external rotating mechanism by a right hand, and the tightening of a heavy fastener is realized; convenient to use, screw up effectually.
Description
Technical Field
The utility model relates to a torque conversion tool, in particular to a torque conversion tool for driving torque by fasteners at narrow parts in space.
Background
During installation and repair of many mechanical devices and equipment, it is often necessary to apply a certain torque to fasteners (e.g., bolts, nuts, etc.) to ensure that they are securely connected. However, in some cases, the conventional torque tool cannot effectively apply torque due to the limitation of the installation space.
For example, in the maintenance of the Hitachi air conditioner, the heater to which the bolt M8X25 is attached is required to apply a torque of 13.5 N.m, but the space at this position is very narrow, and the distance between the outer surface of the bolt head and surrounding parts is only 30mm. However, the conventional torque wrench has a minimum length of 40mm after the socket is installed, and cannot be put into the space.
The existing torque tool is mainly divided into a ratchet head type torque tool and a fork type torque tool. However, the ratchet head type wrench is larger in size after the sleeve is additionally arranged, and cannot meet the requirement of a small space. The fork type torque wrench can be placed in a narrow space, but the limit conditions such as flanging and the like exist around the position of the bolt, so that the use of the fork type torque wrench becomes difficult
The existing tools in the current market are all larger than 40mm in size after the sleeve is additionally arranged, and cannot meet the requirements.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a novel torque conversion tool, which adopts a structure of a hollow gear embedded sleeve. By mounting the sleeve in the hollow gear, the oversized problem associated with conventional ratchet heads is effectively reduced. Compared with the traditional torque tool, the size of the tool can be reduced by 12mm, and the tool is more suitable for a narrow space. Through this torsion conversion frock, can accomplish in narrow and small space that the torsion to the heater bolt is applyed, improved installation and maintenance efficiency.
The technical scheme adopted by the utility model is as follows: the torque conversion tool for the narrow space comprises a shell, a transmission shaft, a first hollow gear, a second hollow gear, a first transmission gear, a second transmission gear and a sleeve, wherein the transmission shaft is arranged in the shell in a bearing connection mode; the first transmission gear and the second transmission gear are respectively sleeved at two ends of the transmission shaft, the first transmission gear and the second transmission gear are coaxially arranged, and the sleeve is arranged inside the second hollow gear and can be matched with an external fastener;
the first hollow gear is rotatably arranged on the outer side surface of one end of the shell and is meshed with the first transmission gear in a representation degree; the inner side surface of the first hollow gear can be matched with an external rotating mechanism, and the second hollow gear is rotatably arranged on the outer side surface of the other end of the shell and is meshed with the second transmission gear (6) in a 90-degree mode.
Further, the first hollow gear and the second hollow gear may be disposed on the same side or different sides of the two ends of the housing.
Furthermore, the shell is cylindrical, and two ends of the shell are hollow structures.
Furthermore, a handle convenient for hand-holding operation can be arranged on the shell.
Further, the sleeve is detachably arranged inside the first hollow gear (3) (different sleeves can be replaced according to different fasteners).
Further, the first hollow gear and the first transmission gear are mutually matched bevel gears or mutually matched bevel gears.
Further, the external rotating mechanism is an electric torque wrench, and a rotating working head of the electric torque wrench can be just inserted into the first hollow gear and drive the first hollow gear to rotate.
Furthermore, a lighting device (for facilitating operation under poor light conditions) can be arranged on the shell.
The utility model has the beneficial effects and characteristics that:
1. the torque conversion tool for the narrow space adopts the hollow gear inner nested cylinder structure, has short total length, is more suitable for the narrow space, is used by holding the shell by the left hand and operating the external rotating mechanism by the right hand, can complete torque transmission, and realizes the tightening of the heavy fastener.
2. The torque conversion tool for the narrow space, provided by the utility model, adopts a reliable mechanical torque transmission principle, is convenient to use and has a good tightening effect.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of the present utility model;
FIG. 2 is a schematic top view of a preferred embodiment of the present utility model (part of the housing structure is not shown for clarity of illustration of the internal structure);
1-shell, 2-transmission shaft, 3-first hollow gear, 4-second hollow gear, 5-first transmission gear, 6-second transmission gear, 7-sleeve.
Detailed Description
The technical scheme of the utility model is clearly and completely described below with reference to the accompanying drawings:
referring to fig. 1 and 2, the utility model relates to a torque conversion tool for a narrow space, which comprises a shell 1, a transmission shaft 2, a first hollow gear 3, a second hollow gear 4, a first transmission gear 5, a second transmission gear 6 and a sleeve 7, wherein the transmission shaft 2 is arranged in the shell 1 in a bearing connection mode; the first transmission gear 5 and the second transmission gear 6 are respectively sleeved at two ends of the transmission shaft 2, the first transmission gear 5 and the second transmission gear 6 are coaxially arranged, and the sleeve 7 is arranged inside the second hollow gear 4 and can be matched with an external fastener;
the first hollow gear 3 is rotatably arranged on the outer side surface of one end of the shell 1 and is mutually meshed with the first transmission gear 5 by 90 degrees; the inner side surface of the first hollow gear 3 can be matched with an external rotating mechanism, and the second hollow gear 4 is rotatably arranged on the outer side surface of the other end of the shell 1 and is meshed with the second transmission gear (6) in a 90-degree mode.
As a preferable solution, the first hollow gear 3 and the second hollow gear 4 may be disposed on the same side or on different sides of the two ends of the housing 1.
Preferably, the shell 1 is cylindrical, and has a hollow structure at two ends for subtracting weight.
As a preferable scheme, a handle which is convenient for hand-holding operation can be further arranged on the shell 1.
Preferably, the sleeve 7 is detachably arranged inside the first hollow gear 3, and different sleeves can be replaced according to different fasteners.
Preferably, the first hollow gear 3 and the first transmission gear 5 are mutually matched bevel gears or mutually matched bevel gears.
Preferably, the external rotating mechanism is an electric torque wrench, and a rotating working head of the electric torque wrench can be just inserted into the first hollow gear 3 and drive the first hollow gear 3 to rotate.
Preferably, a lighting device (to facilitate operation under poor light conditions) may also be provided on the housing 1.
As a preferred solution, ergonomic and non-slip designs are considered to provide better grip feel and operational comfort. Anti-slip lines, graduations or indication lines can also be added on the shell, so that an operator can accurately read the torque force value.
As a preferred solution, an adjustable torsion limiting device is added: an adjustable torsion limiting device is added on the tool, so that an operator can adjust the applied torsion according to different requirements.
As a preferred solution, an electronic display and control system can also be introduced: the electronic display screen is arranged on the tool, so that the torque force application condition can be displayed in real time, and an operator can adjust according to the display. In addition, an automatic control system can be added to realize the application and stop of the automatic control torsion. Equipped with vibration or sound prompt function: the tool is provided with a vibration or sound prompting device, and when the preset torsion or the safety limit is exceeded, an operator is reminded to stop applying the torsion through vibration or sound so as to prevent the fastener and the part from being excessively fastened or damaged.
The using method is as follows:
1. installing the sleeve in the hollow gear, and plugging the working head of the electric torque wrench into the first hollow gear 3 (the inner side of the first hollow gear 3 can be arranged in the form of an end hole);
2. the torsion conversion tool is integrally put into a torsion part to be punched, and the sleeve 7 is sleeved on the head part of an external fastener (such as a bolt);
3. the middle part of the shell is held by the left hand, the electric torque wrench is held by the right hand, and the electric torque wrench is opened by the right hand, so that the torque fastening is realized.
The foregoing has shown and described the basic principles, main features and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the structural relationships and principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The torque conversion tool for the narrow space is characterized by comprising a shell (1), a transmission shaft (2), a first hollow gear (3), a second hollow gear (4), a first transmission gear (5), a second transmission gear (6) and a sleeve (7), wherein the transmission shaft (2) is arranged in the shell (1) in a bearing connection mode; the first transmission gear (5) and the second transmission gear (6) are respectively sleeved at two ends of the transmission shaft (2), the first transmission gear (5) and the second transmission gear (6) are coaxially arranged, and the sleeve (7) is arranged in the second hollow gear (4) and can be matched with an external fastener;
the first hollow gear (3) is rotatably arranged on the outer side surface of one end of the shell (1) and is meshed with the first transmission gear (5) at 90 degrees; the inner side surface of the first hollow gear (3) can be matched with an external rotating mechanism, and the second hollow gear (4) is rotatably arranged on the outer side surface of the other end of the shell (1) and is meshed with the second transmission gear (6) at 90 degrees.
2. The torque conversion tooling for a small space according to claim 1, wherein,
the first hollow gear (3) and the second hollow gear (4) can be arranged on the same side at two ends of the shell (1) or on different sides.
3. The torque conversion tool for a small space according to claim 1, wherein the shell (1) is cylindrical, and two ends of the shell are hollow structures.
4. The torque conversion tool for a small space according to claim 1, wherein a handle convenient for hand-holding operation can be further arranged on the housing (1).
5. Torque conversion tooling for small spaces according to claim 1, characterized in that said sleeve (7) is removably arranged inside said first hollow gear (3).
6. Torque conversion tooling for small spaces according to claim 1, characterized in that the first hollow gear (3) and the first transmission gear (5) are mutually matched bevel gears or mutually matched bevel gears.
7. The torque conversion tool for a small space according to any one of claims 1 to 5, wherein the external rotation mechanism is an electric torque wrench, and a rotary working head of the electric torque wrench is just inserted into the first hollow gear (3) and drives the first hollow gear (3) to rotate.
8. The torque conversion tooling for a small space according to any one of claims 1 to 5, wherein a lighting device can be further arranged on the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321905975.XU CN220389279U (en) | 2023-07-19 | 2023-07-19 | Torsion conversion tool for narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321905975.XU CN220389279U (en) | 2023-07-19 | 2023-07-19 | Torsion conversion tool for narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220389279U true CN220389279U (en) | 2024-01-26 |
Family
ID=89610330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321905975.XU Active CN220389279U (en) | 2023-07-19 | 2023-07-19 | Torsion conversion tool for narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220389279U (en) |
-
2023
- 2023-07-19 CN CN202321905975.XU patent/CN220389279U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |