CN111469091A - Combined tool for mounting and dismounting large-diameter flange plate - Google Patents
Combined tool for mounting and dismounting large-diameter flange plate Download PDFInfo
- Publication number
- CN111469091A CN111469091A CN202010323550.2A CN202010323550A CN111469091A CN 111469091 A CN111469091 A CN 111469091A CN 202010323550 A CN202010323550 A CN 202010323550A CN 111469091 A CN111469091 A CN 111469091A
- Authority
- CN
- China
- Prior art keywords
- flange
- jackscrew
- thread
- dismounting
- screwed
- 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.)
- Granted
Links
Images
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
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
Abstract
The invention belongs to the technical field of solid rocket engines, and particularly relates to a combined tool for mounting and dismounting a large-diameter flange plate, which comprises the following components: a jackscrew, a guide cone and a pressing screw. The tool can be used for conveniently and quickly mounting and dismounting the large-caliber flange plate. The tool has the advantages of simple structure, reliable work and simple and convenient operation, and can effectively improve the mounting and dismounting efficiency of the large-diameter flange plate.
Description
Technical Field
The invention belongs to the technical field of solid rocket engines, and particularly relates to a combined tool for mounting and dismounting a large-diameter flange plate.
Background
The large-caliber flange plate is difficult to position and install due to large size and weight in mounting and dismounting. During installation, on one hand, boss matching surfaces are usually formed on two connected flanges, the matching gap is small, sometimes a sealing ring is required to be installed between the two flanges, the matching surfaces need large force during assembly to ensure the matching size, on the other hand, holes in the two flanges need to be aligned to ensure that bolts can be installed correctly, and the position of the flanges is difficult to adjust; when the two flanges are tightly matched, the two flanges are difficult to separate. The process of installation and dismantlement easily causes the damage of spare part.
At present, the installation and disassembly tools for the large-diameter flange plate are generally designed into two sets of tools which are respectively responsible for installation and disassembly, and the tool is large in size, large in tool amount and difficult to machine and manufacture.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to provide a simple, reliable flange mounting dismantles frock, solves: 1) the accurate positioning and pressing of the large-diameter flange plate are realized; 2) the disassembly problem of the large-diameter flange plate.
(II) technical scheme
In order to solve the technical problem, the invention provides a combined tool for mounting and dismounting a large-diameter flange plate, which is used for mounting and dismounting different solid rocket flange plates, and the combined tool comprises: the device comprises a jackscrew 1, a guide cone 2 and a pressing screw 3;
the jackscrew 1 is a strip-shaped column with a step structure, and the step structure is divided into a left-end threaded section, a middle straight section and a right-end threaded section; the left end thread section is thick, the right end thread section is thin, and threads with different sizes are processed at the two ends; the left end thread section and the middle straight section have the same outer diameter; the thick threads of the left-end thread section are processed according to the size of the internal threads of the connected flange A, and the long and thin threads of the right-end thread section are used for connecting internal parts of the combined tool;
the guide cone 2 is in a conical head shape, an internal thread blind hole for accommodating the thread section at the right end of the jackscrew 1 is processed at the bottom end, and the size of the internal thread blind hole is matched with the long and thin thread of the thread section at the right end of the jackscrew 1; the jackscrew 1 and the guide cone 2 are connected through threads to form a guide tool;
the outer surface of the pressing screw 3 is cylindrical, the outer diameter of the pressing screw is larger than the screw hole of the connected flange B, an inner hole is machined on the inner shape surface, the inner hole is matched with the straight section in the middle of the jackscrew 1, an inner threaded hole is machined at the right end of the pressing screw 3 and matched with the long and thin thread of the thread section at the right end of the jackscrew 1, and the pressing screw 3 is connected with the jackscrew 1 through the long and thin thread to form a pressing.
Wherein, the middle straight section of the jackscrew 1 is slightly smaller than the screw hole of the connected flange B.
A process hole is processed on the middle straight section of the jackscrew 1 and used for screwing and unscrewing a tool.
When the flange A is connected with the flange B, the guide tool is used for screwing the coarse thread of the thread section at the left end of the jackscrew 1 into the internal thread of the flange A, after three to four guide tools are screwed at circumferentially symmetrical positions, the screw holes at the corresponding positions of the flange B penetrate through the guide cone 2, and the flange B is guided and positioned through the guide cone 2.
After the flange B is guided and positioned, the guide cone 2 is screwed out of the guide tool, the pressing screws 3 and the jackscrews 1 are screwed to form a pressing tool, a plurality of pressing screws 3 are screwed into the corresponding long and thin threads of the sections of the right end threads of the jackscrews 1 respectively in a spinning mode at the same time, after the left end face of each pressing screw 3 is contacted with the flange B, the pressing screws 3 are continuously screwed, the flange B can be slowly pressed into the mounting position, the connecting screws of the two flanges can be mounted at the moment, the pressing tool is screwed out of the screw holes of the flange B after the flange B is positioned, the rest flange connecting screws are mounted and screwed as required, and flange mounting is completed.
The flange A is provided with a preset disassembly threaded hole in a penetrating manner, the disassembly threaded hole is machined in advance, the thread size is machined according to the long and thin threads of the thread section at the right end of the jackscrew 1, and a plurality of threaded holes are machined at the symmetrical positions of the flange A.
And 3 dismounting threaded holes are formed in the flange A in a preset mode.
When the flange is disassembled, the long and thin threads of the thread section at the right end of the jackscrew 1 are screwed into the disassembling thread hole preset on the flange A, the three jackscrews 1 are simultaneously screwed into the disassembling thread hole, and the jackscrew 1 is continuously screwed when the front end of the jackscrew 1 contacts the end surface of the flange B, so that the flange B can be ejected out of the flange A, and the flange B is disassembled.
The flange B is provided with a preset disassembly threaded hole in a run-through manner, the disassembly threaded hole is processed in advance, the thread size is processed according to the long and thin threads of the thread section at the right end of the jackscrew 1, and 3 threads are processed at the symmetrical positions of the flange B.
When the flange is disassembled, the long and thin threads of the thread section at the right end of the jackscrew 1 are screwed into the preset disassembling threaded hole on the flange B, the three jackscrews 1 are simultaneously screwed into the disassembling threaded hole, and the jackscrew 1 is continuously screwed when the front end of the jackscrew 1 contacts the end surface of the flange A, so that the flange A can be ejected out of the flange B, and the flange A is disassembled.
(III) advantageous effects
Compared with the prior art, the tool provided by the technical scheme of the invention has the advantages of simple structure, reliable work and simple and convenient operation, can be applied to the installation and the disassembly of the large-diameter flange plate, has certain universality, and can effectively improve the installation and the disassembly of the large-diameter flange plate.
Drawings
Fig. 1 is a schematic drawing of a jackscrew of a tool according to an embodiment of the invention.
Fig. 2 is a schematic view of a guide cone of the tool according to the embodiment of the invention.
Fig. 3 is a schematic view of a screw pressing of the tool according to the embodiment of the invention.
Fig. 4a and 4b are schematic diagrams of a guiding tool and a pressing tool of the tool according to the embodiment of the invention.
Fig. 5 is a schematic working diagram of a guiding tool of the tool according to the embodiment of the invention.
Fig. 6 is a schematic working diagram of a pressing tool of the tool according to the embodiment of the present invention.
Fig. 7 is a schematic working diagram of a tool jackscrew dismounting flange according to an embodiment of the invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
In order to solve the problems in the prior art, the invention provides a combined tool for mounting and dismounting a large-diameter flange plate, which is used for mounting and dismounting different solid rocket flange plates, and comprises the following components: the device comprises a jackscrew 1, a guide cone 2 and a pressing screw 3;
as shown in fig. 1, the jackscrew 1 is a strip-shaped cylinder with a step structure, and the step structure is divided into a left-end threaded section, a middle straight section and a right-end threaded section; the left end thread section is thick, the right end thread section is thin, and threads with different sizes are processed at the two ends; the left end thread section and the middle straight section have the same outer diameter; the thick threads of the left-end thread section are processed according to the size of the internal threads of the connected flange A, and the long and thin threads of the right-end thread section are used for connecting internal parts of the combined tool;
as shown in fig. 2, the guide cone 2 is in the shape of a cone head, and the bottom end of the guide cone is provided with an internal thread blind hole for accommodating the right-end thread section of the jackscrew 1, and the size of the internal thread blind hole is matched with the size of the long and thin thread of the right-end thread section of the jackscrew 1; the jackscrew 1 and the guide cone 2 are connected through threads to form a guide tool, as shown in fig. 4 a;
as shown in fig. 3, the outer surface of the pressing screw 3 is cylindrical, the outer diameter of the pressing screw is larger than the screw hole of the connected flange B, an inner hole is processed on the inner shape surface, the inner hole is matched with the straight section in the middle of the jackscrew 1, an inner threaded hole is processed at the right end of the pressing screw 3 and matched with the long and thin thread of the thread section at the right end of the jackscrew 1, and the pressing screw 3 is connected with the jackscrew 1 through the long and thin thread to form a pressing tool, as shown.
Wherein, the middle straight section of the jackscrew 1 is slightly smaller than the screw hole of the connected flange B.
A process hole is processed on the middle straight section of the jackscrew 1 and used for screwing and unscrewing a tool.
As shown in fig. 5, when the flange a is connected with the flange B, the guide tool is used to screw the coarse thread of the left end thread section of the jackscrew 1 into the internal thread of the flange a, after three to four guide tools are screwed at circumferentially symmetrical positions, the screw holes at the corresponding positions of the flange B are passed through the guide cones 2, and the flange B is guided and positioned by the guide cones 2.
After the flange B is guided and positioned, the guide cone 2 is screwed out of the guide tool, the pressing screws 3 and the jackscrews 1 are screwed to form the pressing tool, as shown in fig. 6, a plurality of pressing screws 3 are simultaneously screwed into the elongated threads of the thread sections at the right end of the corresponding jackscrews 1, after the left end surface of each pressing screw 3 is contacted with the flange B, the pressing screws 3 are continuously screwed, the flange B can be slowly pressed into the mounting position, the connecting screws of the two flanges can be mounted at the moment, the pressing tool is screwed out of the screw holes of the flange B after the flange B is finished, the rest flange connecting screws are mounted and screwed as required, and the flange mounting is finished. The mounting direction of the flange B is as the arrow direction in the figure.
The flange A is provided with a preset disassembly threaded hole in a penetrating manner, the disassembly threaded hole is machined in advance, the thread size is machined according to the long and thin threads of the thread section at the right end of the jackscrew 1, and a plurality of threaded holes are machined at the symmetrical positions of the flange A.
And 3 dismounting threaded holes are formed in the flange A in a preset mode.
As shown in fig. 7, when the flange is disassembled, the long and thin threads of the thread section at the right end of the jackscrew 1 are screwed into the disassembling thread hole preset on the flange a, and simultaneously, the three jackscrews 1 are screwed into the disassembling thread hole, and the jackscrew 1 is continuously screwed when the front end of the jackscrew 1 contacts the end surface of the flange B, so that the flange B can be ejected out of the flange a, and the flange B is disassembled, wherein the disassembling direction of the flange B is as the arrow direction in the figure.
The flange B is provided with a preset disassembly threaded hole in a run-through manner, the disassembly threaded hole is processed in advance, the thread size is processed according to the long and thin threads of the thread section at the right end of the jackscrew 1, and 3 threads are processed at the symmetrical positions of the flange B.
When the flange is disassembled, the long and thin threads of the thread section at the right end of the jackscrew 1 are screwed into the preset disassembling threaded hole on the flange B, the three jackscrews 1 are simultaneously screwed into the disassembling threaded hole, and the jackscrew 1 is continuously screwed when the front end of the jackscrew 1 contacts the end surface of the flange A, so that the flange A can be ejected out of the flange B, and the flange A is disassembled.
The tool provided by the preferred embodiment of the invention is successfully applied to the mounting and dismounting of the large-caliber flange, the tool can work safely and reliably, the requirements of the project are met, and the mounting and dismounting efficiency of the large-caliber flange is improved.
The technical function summary of the combined tool is as follows:
when the large-diameter flange plate is installed, firstly, a guide tool of a jackscrew 1 and a guide cone 2 is adopted, a front end thread of the jackscrew 1 is screwed into a threaded hole of an engine flange A, after three to four guide tools are screwed in circumferential symmetric positions, a threaded hole at a corresponding position of a flange B penetrates through the guide cone 2, the flange B can be guided and positioned through the guide cone 2, then the guide cone 2 is screwed out of a combined body, pressing screws 3 are screwed up to form a pressing and spinning tool, the pressing screws 3 are simultaneously screwed into threads of the jackscrew 1, the flange B is slowly pressed into an installation position, then flange connecting screws are installed, the tool pressing tool is screwed out after the flange connecting screws are completed, and residual flange connecting screws are installed.
When the large-diameter flange plate is disassembled, the small-end threads of the jackscrews 1 are screwed into the disassembling threaded holes of the flange B, the three jackscrews 1 are screwed at circumferentially symmetrical positions, the jackscrews 1 are continuously screwed when the front ends of the jackscrews 1 contact the end surface of the flange A, and the flange B can be ejected out of the flange A, so that the flange is disassembled.
Example 1
In the embodiment, during installation of the large-diameter flange plate, firstly, the guiding tools of the jackscrews 1 and the guiding cones 2 are adopted, the front end threads of the jackscrews 1 are screwed into the threaded holes of the engine flange A, after three to four guiding tools are screwed at circumferentially symmetrical positions, the threaded holes at corresponding positions of the flange B penetrate through the guiding cones 2, guiding and positioning of the flange B can be realized through the guiding cones 2, then the guiding cones 2 are screwed out of a combined body, the pressing screws 3 are screwed up to form a pressing tool, the pressing screws 3 are simultaneously screwed into the threads of the jackscrews 1 in a spinning mode, the flange B is slowly pressed into an installation position, then flange connecting screws are installed, the tool pressing tool is screwed out after the flange B is completed, and residual flange connecting screws are installed.
When the large-diameter flange plate is disassembled, the small-end threads of the jackscrews 1 are screwed into the disassembling threaded holes of the flange B, the three jackscrews 1 are screwed at circumferentially symmetrical positions, the jackscrews 1 are continuously screwed when the front ends of the jackscrews 1 contact the end surface of the flange A, and the flange B can be ejected out of the flange A, so that the flange is disassembled.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a combination frock for heavy-calibre ring flange installation and dismantlement which characterized in that, its installation and the dismantlement that is used for different solid rocket ring flanges, combination frock includes: a jackscrew (1), a guide cone (2) and a pressing screw (3);
the jackscrew (1) is a strip-shaped column with a step structure, and the step structure is divided into a left-end threaded section, a middle straight section and a right-end threaded section; the left end thread section is thick, the right end thread section is thin, and threads with different sizes are processed at the two ends; the left end thread section and the middle straight section have the same outer diameter; the thick threads of the left-end thread section are processed according to the size of the internal threads of the connected flange A, and the long and thin threads of the right-end thread section are used for connecting internal parts of the combined tool;
the guide cone (2) is in a conical head shape, an internal thread blind hole for accommodating the thread section at the right end of the jackscrew (1) is processed at the bottom end, and the size of the internal thread blind hole is matched with the long and thin thread of the thread section at the right end of the jackscrew (1); the jackscrew (1) and the guide cone (2) are connected through threads to form a guide tool;
the outer surface of the pressing screw (3) is cylindrical, the outer diameter of the pressing screw is larger than the screw hole of the connected flange B, an inner hole is machined on the inner shape surface, the inner hole is matched with the straight section in the middle of the jackscrew (1), an inner threaded hole is machined at the right end of the pressing screw (3) and matched with the long and thin thread of the thread section at the right end of the jackscrew (1), and the pressing screw (3) is connected with the jackscrew (1) through the long and thin thread to form a pressing tool.
2. The combined tool for mounting and dismounting the large-caliber flange plate according to claim 1, wherein the straight section of the middle part of the jackscrew (1) is slightly smaller than the screw hole of the connected flange B.
3. The combined tool for mounting and dismounting the large-caliber flange plate according to claim 1, wherein a process hole is formed in the middle straight section of the jackscrew (1) and used for screwing and unscrewing the tool.
4. The combined tool for mounting and dismounting the large-diameter flange plate according to claim 1, wherein when the flange A is connected with the flange B, the guide tool is used for screwing the thick thread of the thread section at the left end of the jackscrew (1) into the internal thread of the flange A, after three to four guide tools are screwed at circumferentially symmetrical positions, the screw holes at the corresponding position of the flange B penetrate through the guide cone (2), and the guide and the positioning of the flange B are realized through the guide cone (2).
5. The combined tool for mounting and dismounting the large-diameter flange plate according to claim 4, wherein after the guiding and positioning of the flange B are completed, the guiding cone (2) is screwed out of the guiding tool, the pressing screws (3) and the jackscrews (1) are screwed up to form a pressing tool, a plurality of pressing screws (3) are simultaneously screwed in the long and thin threads of the right-end thread sections of the corresponding jackscrews (1) in a spinning mode, after the left end face of each pressing screw (3) is in contact with the flange B, the pressing screws (3) are continuously screwed up to slowly press the flange B into a mounting position, the connecting screws of the two flanges can be mounted at the moment, after the pressing tool is screwed out of the screw holes of the flange B, the remaining flange connecting screws are mounted and screwed up as required, and the flange mounting is completed.
6. The combined tool for mounting and dismounting the large-diameter flange plate according to claim 5, wherein a dismounting threaded hole is formed in the flange A in a penetrating mode, the dismounting threaded hole is machined in advance, the thread size is machined according to a long and thin thread of a thread section at the right end of the jackscrew (1), and a plurality of threads are machined at symmetrical positions of the flange A.
7. The combined tool for mounting and dismounting the large-caliber flange plate according to claim 6, wherein 3 dismounting threaded holes are machined in the flange A.
8. The combined tool for mounting and dismounting the large-diameter flange plate according to claim 7, wherein when the flange is dismounted, the long and thin threads of the thread section at the right end of the jackscrew (1) are screwed into the preset dismounting thread hole on the flange A, the three jackscrews (1) are screwed into the dismounting thread hole at the same time, and the jackscrew (1) is continuously screwed when the front end of the jackscrew (1) contacts the end surface of the flange B, so that the flange B can be ejected out of the flange A, and the dismounting of the flange B is realized.
9. The combined tool for mounting and dismounting the large-diameter flange plate according to claim 5, wherein a dismounting threaded hole is formed in the flange B in advance, the dismounting threaded hole is machined in advance, the thread size is machined according to a long and thin thread of a thread section at the right end of the jackscrew (1), and 3 symmetrical positions of the flange B are machined.
10. The combined tool for mounting and dismounting the large-diameter flange plate according to claim 9, wherein when the flange is dismounted, the long and thin threads of the thread section at the right end of the jackscrew (1) are screwed into the preset dismounting thread hole on the flange B, and simultaneously, the three jackscrews (1) are screwed into the dismounting thread hole, and when the front end of the jackscrew (1) contacts the end surface of the flange a, the jackscrew (1) is continuously screwed, so that the flange a can be ejected out of the flange B, and the flange a is dismounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323550.2A CN111469091B (en) | 2020-04-22 | 2020-04-22 | Combined tool for mounting and dismounting large-diameter flange plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323550.2A CN111469091B (en) | 2020-04-22 | 2020-04-22 | Combined tool for mounting and dismounting large-diameter flange plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111469091A true CN111469091A (en) | 2020-07-31 |
| CN111469091B CN111469091B (en) | 2021-11-16 |
Family
ID=71760586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010323550.2A Active CN111469091B (en) | 2020-04-22 | 2020-04-22 | Combined tool for mounting and dismounting large-diameter flange plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111469091B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5927589A (en) * | 1997-11-25 | 1999-07-27 | Lucent Technologies Inc. | Method and fixture for use in bonding a chip to a substrate |
| CN101344108A (en) * | 2007-07-12 | 2009-01-14 | 津田驹工业株式会社 | Mechanical structured member |
| CN201950439U (en) * | 2010-12-15 | 2011-08-31 | 林欣 | Automobile steel sheet spring pin disassembling and assembling guide head |
| CN202914273U (en) * | 2012-11-16 | 2013-05-01 | 沈阳远大压缩机股份有限公司 | Connection structure of reciprocating compressor crosshead and piston rod |
| CN206598069U (en) * | 2017-02-16 | 2017-10-31 | 宝山钢铁股份有限公司 | A kind of sensor replacing device for edger roll oil cylinder |
| CN107956585A (en) * | 2017-11-16 | 2018-04-24 | 盱眙亚意服饰有限公司 | A kind of motorcycle idle speed controls valve chest |
| CN208074331U (en) * | 2018-01-19 | 2018-11-09 | 嘉善爱翔金属制品有限公司 | Ring flange |
-
2020
- 2020-04-22 CN CN202010323550.2A patent/CN111469091B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5927589A (en) * | 1997-11-25 | 1999-07-27 | Lucent Technologies Inc. | Method and fixture for use in bonding a chip to a substrate |
| CN101344108A (en) * | 2007-07-12 | 2009-01-14 | 津田驹工业株式会社 | Mechanical structured member |
| CN201950439U (en) * | 2010-12-15 | 2011-08-31 | 林欣 | Automobile steel sheet spring pin disassembling and assembling guide head |
| CN202914273U (en) * | 2012-11-16 | 2013-05-01 | 沈阳远大压缩机股份有限公司 | Connection structure of reciprocating compressor crosshead and piston rod |
| CN206598069U (en) * | 2017-02-16 | 2017-10-31 | 宝山钢铁股份有限公司 | A kind of sensor replacing device for edger roll oil cylinder |
| CN107956585A (en) * | 2017-11-16 | 2018-04-24 | 盱眙亚意服饰有限公司 | A kind of motorcycle idle speed controls valve chest |
| CN208074331U (en) * | 2018-01-19 | 2018-11-09 | 嘉善爱翔金属制品有限公司 | Ring flange |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111469091B (en) | 2021-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111283612A (en) | Device for mechanical extrusion type flaring | |
| CN111469091B (en) | Combined tool for mounting and dismounting large-diameter flange plate | |
| CN103934793A (en) | Tool for detaching diesel engine air cylinder sleeve | |
| CN103707097A (en) | Flange lug drilling jig | |
| CN109596332B (en) | Low-speed machine oil cylinder high-pressure cavity pressure test device | |
| CN218611748U (en) | Tensioning device | |
| CN215699904U (en) | Transverse bolt type supporting device | |
| CN115070688A (en) | Be used for gas vane bolt to dismantle high-efficient device | |
| CN114542564A (en) | Expansion fixing pin | |
| CN218534405U (en) | Bearing assembling and disassembling tool | |
| CN218776114U (en) | Piston finish milling breach clamping device | |
| CN110936304A (en) | Reverse pneumatic clamping jaw device for locking workpiece | |
| CN210255945U (en) | Screw disassembling tool of single-screw extruder | |
| CN105459012A (en) | Pin pulling device for threaded-hole-free positioning pins | |
| CN215318478U (en) | Miniature proportional valve case dismantles frock | |
| CN211415013U (en) | Utensil is assisted in dismouting of ceramic filter distributor | |
| CN216326322U (en) | Suspension type parallel shaft reduction box hydraulic pressure dismounting device | |
| CN215144820U (en) | Easily-detachable elastic clamp for turning | |
| CN215942787U (en) | Device for disassembling bearing | |
| CN218905226U (en) | Pin dismounting device for pin coupling | |
| CN219704960U (en) | Quick installation frock of synchronous pulley that belt NVH test machine was used | |
| CN211615462U (en) | Auxiliary disassembling tool for spline embedded in pneumatic head | |
| CN212902907U (en) | Inner thread sleeve screwing tool | |
| CN217327995U (en) | Bolt fastening device | |
| CN216657337U (en) | Grinding device for inner hole of opening pressure-bearing ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |