CN114473934B - Screw screwing tool - Google Patents
Screw screwing tool Download PDFInfo
- Publication number
- CN114473934B CN114473934B CN202210208326.8A CN202210208326A CN114473934B CN 114473934 B CN114473934 B CN 114473934B CN 202210208326 A CN202210208326 A CN 202210208326A CN 114473934 B CN114473934 B CN 114473934B
- Authority
- CN
- China
- Prior art keywords
- screw
- rotating shaft
- driving tool
- supporting rod
- mounting hole
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/16—Handles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The application belongs to the technical field of countersunk screw tightening between cases in a runner of an aeroengine, and particularly relates to a screw tightening tool, which comprises: a strut having a mounting hole at one end thereof; one end of the rotating shaft is matched with the counter bore of the head part of the screw, and the other end of the rotating shaft is inserted into the mounting hole; the head of the ratchet wrench is sleeved on the rotating shaft, and the handle of the ratchet wrench is pulled to drive the rotating shaft to rotate around the axis of the ratchet wrench; one end of the ejector rod is in threaded connection with the other end of the supporting rod.
Description
Technical Field
The application belongs to the technical field of countersunk head screw tightening between cases in a runner of an aeroengine, and particularly relates to a screw tightening tool.
Background
The aeroengine runner is formed by an outer casing and an inner casing positioned in the outer casing, under certain conditions, the inner casing is formed by butt joint of multiple sections, the sections are connected through countersunk head screws on the inner side of the runner, due to the fact that the sections are positioned on the inner side of the runner and limited by the space of the outer casing and the inner casing, the countersunk head screws are difficult to screw down when effective axial pressure is applied to the edges of the countersunk head screws, the countersunk head screws cannot be reliably screwed in place, the connecting effect of the inner casings of the sections is difficult to ensure, the pneumatic performance of the aeroengine runner can be influenced, and the problem is particularly prominent when support plates exist on the inner casing and the outer casing.
The present application has been made in view of the above-described technical drawbacks.
It should be noted that the above disclosure of the background art is only for aiding in understanding the inventive concept and technical solution of the present application, which is not necessarily prior art to the present patent application, and should not be used for evaluating the novelty and creativity of the present application in the case where no clear evidence indicates that the above content has been disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide a screw driving tool which overcomes or alleviates at least one of the technical disadvantages known in the art.
The technical scheme of the application is as follows:
a screw driving tool comprising:
a strut having a mounting hole at one end thereof;
one end of the rotating shaft is matched with the counter bore of the head part of the screw, and the other end of the rotating shaft is inserted into the mounting hole;
the head of the ratchet wrench is sleeved on the rotating shaft, and the handle of the ratchet wrench is pulled to drive the rotating shaft to rotate around the axis of the ratchet wrench;
one end of the ejector rod is in threaded connection with the other end of the supporting rod.
According to at least one embodiment of the present application, in the above-mentioned screw driving tool, an end of the strut having the mounting hole has a mounting groove;
the screw driving tool further includes:
the thrust bearing is arranged in the mounting groove and sleeved on the rotating shaft.
According to at least one embodiment of the present application, the screwing tool further includes:
and the limiting baffle ring is connected to one end of the supporting rod, which is provided with a mounting hole, and prevents the thrust bearing from falling out of the mounting groove.
According to at least one embodiment of the present application, in the above-mentioned screwing tool, the limit stop ring is connected to the end of the strut having the mounting hole by a screw.
According to at least one embodiment of the present application, in the screw driving tool, an end of the rotating shaft opposite to the supporting rod is provided with a slot;
the screw driving tool further includes:
one end of the rotating head is inserted into the slot and can rotate under the drive of the rotating shaft, and the other end of the rotating head is matched with the counter bore of the head of the screw.
According to at least one embodiment of the present application, in the screw driving tool, the spindle and the rotary head are magnetically connected.
According to at least one embodiment of the present application, in the screw driving tool, the side wall of the strut has a locking hole, and the locking hole is communicated with the mounting hole;
the screw driving tool further includes:
the locking screw is screwed in the locking hole, and the top end of the locking screw can be abutted against the outer wall of the part of the rotating shaft inserted into the mounting hole.
According to at least one embodiment of the present application, the screwing tool further includes:
the top cap is connected with one end of the ejector rod, which is back to the supporting rod, and the surface of the top cap is arc-shaped.
According to at least one embodiment of the present application, in the screw driving tool, the top cap is connected to an end of the top rod opposite to the supporting rod through a screw.
Drawings
FIG. 1 is a schematic view of a screw driving tool according to an embodiment of the present application for driving countersunk head screws between cases in a flow passage of an aircraft engine;
wherein:
1-a supporting rod; 2-rotating shaft; 3-ratchet wrench; 4-ejector rods; 5-thrust bearings; 6-limiting baffle rings; 7-turning; 8-locking screws; 9-top cap; 10-an outer casing; 11-an inner casing; 12-supporting plates; 13-countersunk head screws.
For the purpose of better illustrating the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions, and furthermore, the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Detailed Description
In order to make the technical solution of the present application and its advantages more clear, the technical solution of the present application will be further and completely described in detail with reference to the accompanying drawings, it being understood that the specific embodiments described herein are only some of the embodiments of the present application, which are for explanation of the present application and not for limitation of the present application. It should be noted that, for convenience of description, only the part related to the present application is shown in the drawings, and other related parts may refer to the general design, and the embodiments of the present application and the technical features of the embodiments may be combined with each other to obtain new embodiments without conflict.
Furthermore, unless defined otherwise, technical or scientific terms used in the description of the application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," "outer," and the like as used in the description of the present application are merely used for indicating relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and that the relative positional relationships may be changed when the absolute position of the object to be described is changed, thus not being construed as limiting the application. The terms "first," "second," "third," and the like, as used in the description of the present application, are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance to the various components. The use of the terms "a," "an," or "the" and similar referents in the description of the application are not to be construed as limiting the amount absolutely, but rather as existence of at least one. As used in this description of the application, the terms "comprises," "comprising," or the like are intended to cover an element or article that appears before the term as such, but does not exclude other elements or articles from the list of elements or articles that appear after the term.
Furthermore, unless specifically stated and limited otherwise, the terms "mounted," "connected," and the like in the description of the present application are used in a broad sense, and for example, the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements, and the specific meaning of the two elements can be understood by a person skilled in the art according to specific situations.
The application is described in further detail below with reference to fig. 1.
A screw driving tool comprising:
a strut 1 having a mounting hole at one end thereof;
one end of the rotating shaft 2 is matched with the counter bore of the head part of the screw, and the other end of the rotating shaft is inserted into the mounting hole;
the head of the ratchet wrench 3 is sleeved on the rotating shaft 2, and the handle of the ratchet wrench is pulled to drive the rotating shaft 2 to rotate around the axis of the ratchet wrench, so that the ratchet wrench can limit the rotating shaft 2 through a spigot;
and one end of the ejector rod 4 is in threaded connection with the other end of the supporting rod 1.
The screw driving tool disclosed in the above embodiment can be used for tightening countersunk screws between cases in a runner of an aeroengine, and the specific process can be carried out by referring to the following steps:
placing a screw driving tool in the flow of the aero-engine;
one end of the rotating shaft 2, which is opposite to the supporting rod 1, is aligned with a counter bore of the head of the countersunk head screw 13 and is inserted;
the ejector rod 4 is screwed, so that one end of the ejector rod 4, which is opposite to the support rod 1, is tightly propped against the outer casing 10;
the handle of the ratchet wrench 3 is pulled to drive the rotating shaft 2 to rotate around the axis of the rotating shaft, the countersunk head screw 13 is screwed down to connect the two sections of inner cases 11, and in the process, the ejector rod 4 can be continuously screwed down, so that one end of the ejector rod 4, which is opposite to the supporting rod 1, is kept tightly propped against the outer case 10.
For the screw tightening tool disclosed in the above embodiment, it can be understood by those skilled in the art that when the countersunk head screw between the cases in the flow passage of the aeroengine is tightened by using the screw tightening tool, the countersunk head screw is tightly pressed against the outer case 10 by the ejector rod 4, and the axial pressure along the countersunk head screw 13 is applied, so that the countersunk head screw 13 can be reliably tightened in place while the axial effective pressure is applied to the countersunk head screw 13, the connection effect of the two inner cases 11 can be ensured, and the serious influence on the aerodynamic performance of the flow passage of the aeroengine is avoided.
For the screw tightening tool disclosed in the above embodiment, it can be further understood by those skilled in the art that when the countersunk head screw between the cases in the flow channel of the aeroengine is tightened by using the screw tightening tool, the handle of the ratchet wrench 3 is pulled to drive the rotating shaft 2 to rotate around the axis of the rotating shaft, so that the countersunk head screw 13 is tightened, and in the tightening process of the countersunk head screw 13, only the handle of the ratchet wrench 3 is continuously pulled forwards and backwards, so that the space limitation is small, and the effective tightening of the countersunk head screw 13 can be realized quickly and conveniently even if the support plate 12 exists.
As for the screw driving tool disclosed in the above embodiment, it will be further understood by those skilled in the art that after the countersunk head screw between the cases in the flow channel of the aeroengine is screwed, the ejector rod 4 may be screwed, the end of the ejector rod 4 facing away from the strut 1 is separated from the outer case 10, the end of the rotating shaft 2 facing away from the strut 1 is taken out from the counter bore at the head of the countersunk head screw 13, and then the entire screw driving tool is taken out from the flow channel of the aeroengine, and when the countersunk head screw 13 needs to be unscrewed, the above disclosed step of screwing the countersunk head screw 13 is reversed, and no further detailed description will be given here.
In some alternative embodiments, in the screw driving tool, the end of the supporting rod 1 with the mounting hole is provided with a mounting groove;
the screw driving tool further includes:
thrust bearing 5 sets up in the mounting groove, cup joints on pivot 2 to reduce the frictional force of branch 1 to pivot 2.
In some alternative embodiments, the screwing tool further includes:
and the limit baffle ring 6 is connected to one end of the support rod 1 with a mounting hole and used for preventing the thrust bearing 5 from falling out of the mounting groove.
In some alternative embodiments, in the screwing tool, the limit stop ring 6 is connected to the end of the strut 1 with the mounting hole through a screw.
In some alternative embodiments, in the above-mentioned screwing tool, the end of the rotating shaft 2 facing away from the supporting rod 1 is provided with a slot;
the screw driving tool further includes:
the rotating head 7 is inserted into the slot at one end and can rotate under the drive of the rotating shaft 2, and the other end is matched with the counter bore of the head part of the screw.
For the screw screwing tool disclosed in the above embodiment, it will be understood by those skilled in the art that when the countersunk head screw between the cases in the flow channel of the aeroengine is screwed by using the screw screwing tool, the appropriate swivel 7 can be selected according to the type of the countersunk head screw 13, and after the end of the ejector rod 4, which is opposite to the strut 1, is propped against the outer case 10, the end of the swivel 7, which is opposite to the rotating shaft 2, is inserted into the countersunk head of the countersunk head screw 13, so as to screw the countersunk head screw 13.
In some alternative embodiments, in the above-mentioned screwing tool, the shaft 2 and the rotary head 7 are magnetically connected, so as to avoid the rotary head 7 from falling out of the slot.
In some alternative embodiments, in the above-mentioned screwing tool, the side wall of the strut 1 is provided with a locking hole, and the locking hole is communicated with the mounting hole;
the screw driving tool further includes:
the locking screw 8 is screwed in the locking hole, and the top end of the locking screw can be abutted against the outer wall of the part of the rotating shaft 2 inserted into the mounting hole.
For the screw tightening tool disclosed in the above embodiment, it will be understood by those skilled in the art that when the top end of the locking screw 8 abuts against the outer wall of the rotating shaft 2, the rotating shaft 2 cannot be driven by the ratchet wrench 3 to rotate, but the rotating shaft 2 is not easy to fall off from the mounting hole at this time, so when the screw tightening tool is used for tightening the countersunk head screw between the cases in the flow passage of the aeroengine, the screw tightening tool is placed in the flow of the aeroengine, the end of the rotating shaft 2, which is opposite to the strut 1, is aligned with the counter bore of the head of the countersunk head screw 13, and the ejector rod 4 is screwed, when the end of the ejector rod 4, which is opposite to the strut 1, is abutted against the outer wall of the rotating shaft 2, and when the handle of the ratchet wrench 3 is pulled, the rotating shaft 2 is driven to rotate around the axis of the self, and when the countersunk head screw 13 is screwed, the locking screw 8 is unscrewed, so that the top end of the ejector rod 4 is separated from the outer wall of the rotating shaft 2.
As for the screw driving tool disclosed in the above embodiment, it will be further understood by those skilled in the art that when the locking screw 8 is unscrewed to separate the top end thereof from the outer wall of the rotating shaft 2, the rotating shaft 2 can be taken out of the mounting hole, and at this time, the suitable ratchet wrench 3 can be easily replaced, and after the replacement, the rotating shaft 2 is assembled into the mounting hole.
In some alternative embodiments, the screwing tool further includes:
the top cap 9 is connected to one end of the ejector rod 4, which is opposite to the support rod 1, the surface of the top cap is arc-shaped, and when the top cap 4 is screwed with the countersunk screw between the cases in the flow channel of the aeroengine, the top cap 9 can be tightly propped against the outer case 10, so that the top cap 4 is prevented from being directly propped against the outer case 10, and the outer case 10 is prevented from being damaged.
In some alternative embodiments, in the screw driving tool described above, the top cap 9 is connected to the end of the ejector rod 4 facing away from the support rod 1 by a screw.
In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred.
Having thus described the technical aspects of the present application with reference to the preferred embodiments shown in the drawings, it should be understood by those skilled in the art that the scope of the present application is not limited to the specific embodiments, and those skilled in the art may make equivalent changes or substitutions to the related technical features without departing from the principle of the present application, and those changes or substitutions will fall within the scope of the present application.
Claims (6)
1. A screw driving tool, comprising:
a support rod (1) with a mounting hole at one end;
one end of the rotating shaft (2) is matched with the counter bore of the head part of the screw, and the other end of the rotating shaft is inserted into the mounting hole;
the head of the ratchet wrench (3) is sleeved on the rotating shaft (2), and the handle of the ratchet wrench is pulled to drive the rotating shaft (2) to rotate around the axis of the ratchet wrench;
one end of the ejector rod (4) is in threaded connection with the other end of the supporting rod (1);
one end of the supporting rod (1) with the mounting hole is provided with a mounting groove;
the screw driving tool further includes:
a thrust bearing (5) which is arranged in the mounting groove and is sleeved on the rotating shaft (2);
further comprises:
the limit baffle ring (6) is connected to one end of the supporting rod (1) with the mounting hole and used for preventing the thrust bearing (5) from falling out of the mounting groove;
the limiting baffle ring (6) is connected to one end of the supporting rod (1) with the mounting hole through a screw.
2. The screw-driving tool according to claim 1, wherein,
one end of the rotating shaft (2) facing away from the supporting rod (1) is provided with a slot;
the screw driving tool further includes:
and one end of the rotating head (7) is inserted into the slot and can rotate under the drive of the rotating shaft (2), and the other end of the rotating head is matched with the counter bore of the head part of the screw.
3. The screw-driving tool according to claim 2, wherein,
the rotating shaft (2) and the rotating head (7) are magnetically connected.
4. The screw-driving tool according to claim 1, wherein,
the side wall of the supporting rod (1) is provided with a locking hole, and the locking hole is communicated with the mounting hole;
the screw driving tool further includes:
the locking screw (8) is screwed in the locking hole, and the top end of the locking screw can be abutted against the outer wall of the middle part of the installation hole, where the rotating shaft (2) is inserted.
5. The screw-driving tool according to claim 1, wherein,
further comprises:
the top cap (9) is connected with one end of the ejector rod (4) back to the supporting rod (1), and the surface of the top cap is arc-shaped.
6. The screw-driving tool according to claim 5, wherein,
the top cap (9) is connected to one end of the ejector rod (4) back to the supporting rod (1) through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210208326.8A CN114473934B (en) | 2022-03-04 | 2022-03-04 | Screw screwing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210208326.8A CN114473934B (en) | 2022-03-04 | 2022-03-04 | Screw screwing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114473934A CN114473934A (en) | 2022-05-13 |
| CN114473934B true CN114473934B (en) | 2023-09-05 |
Family
ID=81485884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210208326.8A Active CN114473934B (en) | 2022-03-04 | 2022-03-04 | Screw screwing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114473934B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05337837A (en) * | 1992-06-08 | 1993-12-21 | Makita Corp | Continuous screw fastening machine |
| CN2652603Y (en) * | 2003-06-12 | 2004-11-03 | 周国铨 | Connection screw dismantling tool for plane structure members |
| DE10324258A1 (en) * | 2003-05-28 | 2004-12-16 | Bräutigam, Michael | Tool for manually tightening or loosening fastening components, includes screwdriver and nut key which form matching unit such that nut key has concentric drilling which receives shaft of screw driver |
| CN201922383U (en) * | 2010-11-25 | 2011-08-10 | 苏明 | T-shaped double-handle screwdriver |
| CN105234896A (en) * | 2015-11-12 | 2016-01-13 | 莱芜钢铁集团有限公司 | Nut disassembly and assembly device |
| CN207240056U (en) * | 2017-10-10 | 2018-04-17 | 廖加伟 | The screwdriver that a kind of small space uses |
| JP2019111644A (en) * | 2017-12-22 | 2019-07-11 | 水野 弘 | Ratchet wrench screw component alignment auxiliary tool |
| CN213470982U (en) * | 2020-08-24 | 2021-06-18 | 中国航空工业集团公司雷华电子技术研究所 | Screwing tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6789449B2 (en) * | 2003-01-09 | 2004-09-14 | Lin-Lang Liu | Ratchet wrench |
-
2022
- 2022-03-04 CN CN202210208326.8A patent/CN114473934B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05337837A (en) * | 1992-06-08 | 1993-12-21 | Makita Corp | Continuous screw fastening machine |
| DE10324258A1 (en) * | 2003-05-28 | 2004-12-16 | Bräutigam, Michael | Tool for manually tightening or loosening fastening components, includes screwdriver and nut key which form matching unit such that nut key has concentric drilling which receives shaft of screw driver |
| CN2652603Y (en) * | 2003-06-12 | 2004-11-03 | 周国铨 | Connection screw dismantling tool for plane structure members |
| CN201922383U (en) * | 2010-11-25 | 2011-08-10 | 苏明 | T-shaped double-handle screwdriver |
| CN105234896A (en) * | 2015-11-12 | 2016-01-13 | 莱芜钢铁集团有限公司 | Nut disassembly and assembly device |
| CN207240056U (en) * | 2017-10-10 | 2018-04-17 | 廖加伟 | The screwdriver that a kind of small space uses |
| JP2019111644A (en) * | 2017-12-22 | 2019-07-11 | 水野 弘 | Ratchet wrench screw component alignment auxiliary tool |
| CN213470982U (en) * | 2020-08-24 | 2021-06-18 | 中国航空工业集团公司雷华电子技术研究所 | Screwing tool |
Non-Patent Citations (1)
| Title |
|---|
| 面棘轮式液压扭矩扳手的设计;田野;华剑;李美求;;南方农机(第06期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114473934A (en) | 2022-05-13 |
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