CN107175614B - Gun core pulling device for replacing gun core - Google Patents
Gun core pulling device for replacing gun core Download PDFInfo
- Publication number
- CN107175614B CN107175614B CN201710423019.0A CN201710423019A CN107175614B CN 107175614 B CN107175614 B CN 107175614B CN 201710423019 A CN201710423019 A CN 201710423019A CN 107175614 B CN107175614 B CN 107175614B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- outer sleeve
- replacing
- gun core
- thread
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Telescopes (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a gun core pulling device for replacing a gun core, wherein the gun core is arranged on a furnace body and comprises: the inner sleeve is provided with a first thread and a second thread with opposite turning directions and is suitable for being matched with the gun core thread through the first thread; the outer sleeve is internally provided with a moving cavity with two open ends, and the inner peripheral wall of the moving cavity is provided with internal threads matched with the second threads; the positioning piece is arranged on the external sleeve and is suitable for being matched with or separated from the furnace body; and the driving device is respectively matched with the inner sleeve and the outer sleeve to drive the inner sleeve to rotate, or drive the outer sleeve and the inner sleeve to synchronously rotate, or drive the outer sleeve to move so as to separate the positioning piece from the furnace body. According to the gun core pulling device for replacing the gun core, disclosed by the embodiment of the invention, the gun core is pulled out of the furnace body by arranging the driving device, so that the quick replacement of the gun core is realized, the labor intensity of workers is reduced, the working efficiency is improved, and the production capacity is improved.
Description
Technical Field
The invention relates to the technical field of metallurgical smelting, in particular to a gun core pulling device for replacing a gun core.
Background
The metallurgical bottom blowing smelting furnace adopts an oxygen lance to blow oxygen into the furnace from the bottom of a molten pool. In the production process, the head of the oxygen lance can be blocked and ablated, and the core of the oxygen lance needs to be pulled out periodically for cleaning or replacing. As the phenomena of nozzle nodulation, melt leakage, ablation deformation and the like can occur in the production process of part of gun cores, the gun cores are very difficult to pull out, workers are required to change guns near a furnace body with high-temperature radiation for a long time, and the labor intensity is high.
In the related technology, a T-shaped steel pipe with internal threads and a gun core are manually screwed together, and the T-shaped steel pipe is knocked by an iron hammer to pull out the gun core from an oxygen lance sleeve. This scheme work efficiency is low, needs the workman to change the rifle under the environment of high temperature radiation for a long time, and intensity of labour is very big.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention provides the gun core pulling device for replacing the gun core, which adopts a mechanical device to complete the gun core pulling work, lightens the labor intensity of workers, improves the working efficiency and improves the production capacity.
According to the rifle core pulling device for replacing the rifle core of the embodiment of the invention, the rifle core is arranged on a furnace body and comprises: the inner sleeve is provided with a first thread and a second thread with opposite screwing directions and is suitable for being matched with the gun core thread through the first thread; the inner peripheral wall of the moving cavity is provided with an inner thread matched with the second thread; the positioning piece is arranged on the external sleeve and is suitable for being matched with or separated from the furnace body; and the driving device is respectively matched with the inner sleeve and the outer sleeve to drive the inner sleeve to rotate, or drive the outer sleeve and the inner sleeve to synchronously rotate, or drive the outer sleeve to move so as to separate the positioning piece from the furnace body.
According to the gun core pulling device for replacing the gun core, the first thread and the second thread are arranged on the inner sleeve, the first thread is matched with the gun core, the second thread is matched with the outer sleeve, and the gun core can be pulled out of the furnace body by utilizing the relative motion between the inner sleeve and the outer sleeve, so that the operation flow of replacing the gun core is simplified, the quick replacement of the gun core is realized, the labor intensity of workers is reduced, the working efficiency is improved, and the production capacity is improved.
In some embodiments of the invention, the driving means comprises: the electric wrench comprises a shell and a rotating piece, and the rotating piece is matched with the inner sleeve to drive the inner sleeve to rotate; a cutting sleeve, wherein the cutting sleeve is respectively matched with the outer shell and the outer sleeve to drive the outer sleeve to move when the electric wrench moves, and the cutting sleeve is rotationally matched with the outer sleeve; the first matching piece and the second matching piece can be matched or separated, and the first matching piece and the second matching piece are respectively arranged on the rotating piece and the shell.
In some embodiments of the present invention, the outer circumferential wall of the outer sleeve is provided with a snap ring, and the inner circumferential wall of the snap ring is respectively in contact fit with the outer circumferential wall of the snap ring and the outer circumferential wall of the outer sleeve.
In some embodiments of the present invention, the barrel pulling device for replacing the barrel further comprises a gasket provided on an end surface of the snap ring remote from the housing.
In some embodiments of the present invention, the first fitting part and the second fitting part are respectively formed in a tooth shape of a ring shape, and the first fitting part and the second fitting part are engaged or disengaged.
In some embodiments of the invention, the ferrule is removably disposed on the housing by a fastener.
In some embodiments of the present invention, the positioning member comprises: the furnace body is provided with a plurality of fixing holes, and the plurality of pins are suitable for correspondingly extending into the plurality of fixing holes one by one so as to position the external sleeve on the furnace body.
In some embodiments of the present invention, the fixing portion is formed in a closed loop type structure.
In some embodiments of the invention, the retainer portion and the outer sleeve are integrally formed.
In some embodiments of the invention, the first thread is an internal thread.
Drawings
Fig. 1 is a schematic sectional view showing a state in which an inner sleeve of a core pulling apparatus for replacing a core is retracted into an outer sleeve according to an embodiment of the present invention.
Reference numerals:
the gun core pulling device 10000 is used for pulling out the gun core,
the inner sleeve 1, the first thread 10, the second thread 11,
the outer sleeve 2, the second fitting 20, the snap ring 21,
the positioning member 3, the fixing portion 30, the pin 31,
a driving device 4, an electric wrench 40, a housing 400, a first mating member 4000, a rotating member 401, a ferrule 41,
a spacer 5.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
A barrel drawing device 10000 for replacing a barrel according to an embodiment of the present invention, which can draw a barrel to be replaced out of a furnace body, will be described in detail with reference to fig. 1. It should be noted that the gun core can be arranged on the furnace body, and the outer surface of the gun core can be provided with threads.
As shown in fig. 1, a core barrel drawing device 10000 for replacing a core barrel according to an embodiment of the present invention includes: an inner sleeve 1, an outer sleeve 2, a positioning member 3 and a driving device 4.
Specifically, the inner sleeve 1 is provided with a first thread 10 and a second thread 11 with opposite turning directions, and the inner sleeve 1 is suitable for being matched with the gun core thread through the first thread 10. For example, the first thread 10 may be provided on the inner peripheral wall of the inner sleeve 1 and the second thread 11 may be provided on the outer peripheral wall of the inner sleeve 1, the inner sleeve 1 being sleeved over the core so that the first thread 10 inside the inner sleeve 1 cooperates with the thread on the outer surface of the core. When the gun core pulling device 10000 works, the inner sleeve 1 can be rotated to make the first thread 10 inside the inner sleeve screwed with the thread on the outer surface of the gun core.
The outer sleeve 2 is internally provided with a moving cavity with two open ends, and the inner peripheral wall of the moving cavity is provided with internal threads matched with the second threads 11. It will be appreciated that the outer sleeve 2 defines a displacement chamber internally, and that internal threads are provided on its inner peripheral wall, and that the second threads 11 on the outer surface of the inner sleeve 1 are threadedly engaged with the internal threads of the outer sleeve 2. When drawing out rifle core device 10000 during operation, inner sleeve 1 can be connected with the internal thread spiral of external sleeve 2 through self rotation, realizes removing the intracavity and removes. Optionally, when the gun core pulling device 10000 does not work, the inner sleeve 1 may be screwed into the moving cavity of the outer sleeve 2; at the start of operation, the inner sleeve 1 can be extended out of the displacement chamber of the outer sleeve 2 by screwing.
The positioning piece 3 is arranged on the outer sleeve 2 and is suitable for being matched with or separated from the furnace body. When the gun core pulling device 10000 is in operation, the positioning piece 3 can be matched with the furnace body along with the screwing movement of the first threads 10 and the threads on the surface of the gun core, so that the positioning and torque providing effects are achieved. When the gun core is pulled out by the gun core pulling device 10000, the positioning piece 3 is separated from the furnace body.
The driving device 4 is respectively matched with the inner sleeve 1 and the outer sleeve 2 to drive the inner sleeve 1 to rotate, or drive the outer sleeve 2 and the inner sleeve 1 to synchronously rotate, or drive the outer sleeve 2 to move so as to separate the positioning piece 3 from the furnace body. It can be understood that the driving device 4 provides the gun core pulling device 10000 with power torque, so as to pull out the gun core from the furnace body.
According to the gun core pulling device 10000 for replacing the gun core, which is disclosed by the embodiment of the invention, the first thread 10 and the second thread 11 are arranged on the inner sleeve 1, the first thread 10 is matched with the gun core, and the second thread 11 is matched with the outer sleeve 2, so that the gun core can be pulled out of a furnace body by utilizing the relative motion between the inner sleeve 1 and the outer sleeve 2, the operation flow for replacing the gun core is simplified, the quick replacement of the gun core is realized, the labor intensity of workers is reduced, the working efficiency is improved, and the production capacity is improved.
As shown in fig. 1, in some embodiments of the invention, the driving device 4 may comprise: an electric wrench 40, a ferrule 41 and a first fitting 4000 and a second fitting 20 which can be engaged or disengaged. The electric wrench 40 includes a housing 400 and a rotating member 401, and the rotating member 401 is engaged with the inner sleeve 1 to drive the inner sleeve 1 to rotate. It should be noted that the rotating member 401 can realize forward rotation and reverse rotation under the control of the electric wrench 40. When the gun core pulling device 10000 works, the rotation and the reverse rotation of the rotating part 401 can be controlled, so that the inner sleeve 1 is connected with the gun core in a rotating mode, and the gun core is pulled out of the furnace body. For example, when the gun core pulling device 10000 for replacing the gun core starts to work, the rotation member 401 rotates reversely, and the inner sleeve 1 moves outward in the moving cavity of the outer sleeve 2; moving out of a certain position and stopping rotating; after the first thread 10 of the inner sleeve 1 is aligned with the external thread of the gun core, the rotating part 401 rotates forwards, when the inner sleeve 1 is completely screwed with the gun core to be connected, the positioning part 3 is also completely jointed with the positioning hole of the furnace body, the rotating part 401 continues to rotate forwards, the inner sleeve 1 moves towards the moving cavity, and the gun core is pulled out of the furnace body.
The ferrule 41 cooperates with the housing 400 and the outer sleeve 2, respectively, to drive the outer sleeve 2 to move when the power wrench 40 is moved, the ferrule 41 and the outer sleeve 2 being rotationally engaged. Specifically, the ferrule 41 is detachably provided on the housing 400 by a fixing member, one end of the ferrule 41 is fixed on the housing 400 of the electric wrench 40, and the other end is connected to the outer sleeve 2, and the ferrule 41 can slide back and forth relative to the outer sleeve 2. Alternatively, the fixing member may be a screw.
As shown in fig. 1, the first mating member 4000 and the second mating member 20 are provided on the rotating member 401 and the housing 400, respectively. Specifically, the first fitting member 4000 and the second fitting member 20 can be engaged and disengaged, and torque transmission is achieved. When the gun core pulling device 10000 starts to work, the first matching piece 4000 and the second matching piece 20 are matched to realize the transmission of torque; when the inner sleeve 1 pulls the core out a distance, the first fitting 4000 and the second fitting 20 are disengaged.
Preferably, the first fitting member 4000 and the second fitting member 20 are respectively formed in a tooth shape having a ring shape, and the first fitting member 4000 and the second fitting member 20 are engaged or disengaged. The first fitting member 4000 and the second fitting member 20 are arranged in a gear structure, so that the connection and the fitting are firmer, and the transmission of torque is facilitated.
In some embodiments of the present invention, the outer circumferential wall of the outer sleeve 2 is provided with a snap ring 21, and the inner circumferential wall of the ferrule 41 is respectively in contact fit with the outer circumferential wall of the snap ring 21 and the outer circumferential wall of the outer sleeve 2. It can be understood that the snap ring 21 is disposed on the moving path of the ferrule 41 on the outer sleeve 2, and the first fitting member 4000 and the second fitting member 20 are engaged and disengaged as the ferrule 41 moves back and forth. The snap ring 21 contacts the inner peripheral wall of the ferrule 41, and the protruding portion of the snap ring 21 can limit the backward sliding of the ferrule 41 when being engaged with one end of the ferrule 41, so as to ensure that the ferrule 41 connects the housing 400 of the electric wrench 40 and the outer sleeve 2 together. Alternatively, a screw connection may be used between the snap ring 21 and the outer sleeve 2.
As shown in fig. 1, in some embodiments of the present invention, the core pulling device 10000 for replacing the core further includes a gasket 5, and the gasket 5 is disposed on an end face of the snap ring 21 away from the housing 400. That is, the spacer 5 is installed between the snap ring 21 and the outer sleeve 2, and functions to reduce rotational friction.
As shown in fig. 1, in some embodiments of the present invention, the positioning member 3 includes: a retainer 30 and a plurality of pins 31. Wherein, a plurality of pins 31 are arranged on the fixing part 30, a plurality of fixing holes are arranged on the furnace body, and the plurality of pins 31 are suitable for correspondingly extending into the plurality of fixing holes one by one so as to position the outer sleeve 2 on the furnace body. Specifically, when the gun core pulling device 10000 is in operation, along with the screwing of the inner sleeve 1 and the gun core, the positioning piece 3 gradually approaches to the positioning hole of the furnace body, and finally the pin 31 on the positioning piece 3 is completely inserted into the positioning hole. The pin 31 is matched with the positioning hole, and can play a role in positioning and transmitting torque.
Preferably, the fixing portion 30 may be formed in a closed loop type structure. It will be understood that the pins 31 are uniformly distributed on the annular fixing portion 30, and the number of the pins 31 may be multiple as long as the requirement of transmitting torque is satisfied.
Further, the fixing portion 30 is integrally formed with the outer sleeve 2. The fixing part 30 and the outer sleeve 2 are integrally formed, so that the assembly process of the device can be simplified, the assembly time can be saved, and the production efficiency can be improved.
In some embodiments of the invention, the first thread 10 is an internal thread. When the gun core pulling device 10000 for replacing the gun core starts to work, the first threads 10 are screwed with the threads on the outer surface of the gun core.
The operation of the core barrel drawing device 10000 for changing the core barrel according to the embodiment of the present invention will be described in detail with reference to fig. 1.
As shown in fig. 1, a core barrel drawing device 10000 for replacing a core barrel according to an embodiment of the present invention includes an inner sleeve 1, an outer sleeve 2, a positioning member 3, and a driving device 4.
The inner circumferential wall of the inner sleeve 1 is provided with a first thread 10 and the outer circumferential wall with a second thread 11. A moving cavity with two open ends is arranged in the external sleeve 2, and internal threads matched with the second threads 11 are arranged on the inner peripheral wall of the moving cavity; a snap ring 21 is provided on the outer peripheral wall of the outer sleeve 2, and a gasket 5 is installed between the snap ring 21 and the outer sleeve 2.
The positioning member 3 includes a fixing portion 30 and a plurality of pins 31. Wherein the fixing portion 30 is a closed loop structure, and a plurality of pins 31 are uniformly distributed on the fixing portion 30.
The drive means 4 comprises an electric wrench 40, a ferrule 41, a first fitting 4000 and a second fitting 20. Wherein the electric wrench 40 comprises a housing 400 and a rotating member 401, the rotating member 401 is used for driving the inner sleeve 1 to rotate; one end of the cutting sleeve 41 is fixed on the shell 400, and the other end is in running fit with the outer sleeve 2; the first mating member 4000 and the second mating member 20 are provided on the rotating member 401 and the housing 400, respectively, and the first mating member 4000 and the second mating member 20 can be engaged and disengaged.
When the gun core pulling device 10000 works, the first matching piece 4000 and the second matching piece 20 are matched to start the electric wrench 40, the electric wrench 40 rotates reversely, and the rotating piece 401 drives the inner sleeve 1 to extend out of the moving cavity of the outer sleeve 2. After the inner sleeve 1 is extended to a certain length, the electric wrench 40 is closed and the rotation is stopped. Align the screw thread on the rifle core surface with the first screw thread 10 of inside sleeve pipe 1, start electric spanner 40, electric spanner 40 corotation, it rotates to rotate the inside sleeve pipe 1 of 401 drive, the cooperation is closed soon to the first screw thread 10 of inside sleeve pipe 1 and the screw thread on the rifle core surface, setting element 3 closes gradually to the furnace body along with first screw thread 10 closes soon with the screw thread on the rifle core surface simultaneously, it is connected to close soon completely in the locating hole of pin 31 full insertion furnace body on the fixed part 30 until this moment inside sleeve 1 also closes with the rifle core.
The electric wrench 40 continues to rotate positively, the rotating part 401 drives the inner sleeve 1 to rotate in the moving cavity of the outer sleeve 2, the gun core is driven to be pulled out of the furnace body, after the gun core moves for a certain distance, the first matching part 4000 and the second matching part 20 are separated, the pin 31 is pulled out of the positioning hole in the furnace body, the gun core can be slowly pulled out of the furnace body, the electric wrench 40 is closed, and the gun core pulling operation is completed.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a pull out rifle core device (10000) for changing the rifle core, the rifle core is established on the furnace body, its characterized in that, pull out rifle core device and include:
the gun core comprises an inner sleeve (1), wherein a first thread (10) and a second thread (11) with opposite screwing directions are arranged on the inner sleeve (1), and the inner sleeve (1) is suitable for being in threaded fit with the gun core through the first thread (10);
the outer sleeve (2) is internally provided with a moving cavity with two open ends, and the inner peripheral wall of the moving cavity is provided with internal threads matched with the second threads (11);
the positioning piece (3) is arranged on the external sleeve (2) and is suitable for being matched with or separated from the furnace body;
the driving device (4) is respectively matched with the inner sleeve (1) and the outer sleeve (2) to drive the inner sleeve (1) to rotate, or drive the outer sleeve (2) and the inner sleeve (1) to synchronously rotate, or drive the outer sleeve (2) to move;
drive arrangement (4) include electric spanner (40), first fitting piece (4000) and second fitting piece (20) that can cooperate or break away from, electric spanner (40) include shell (400) and rotate piece (401), rotate piece (401) with inside sleeve (1) cooperation is in order to drive inside sleeve (1) rotates, first fitting piece (4000) with second fitting piece (20) are established respectively rotate piece (401) with on shell (400).
2. The barrel drawing device (10000) for replacing a barrel according to claim 1, wherein said driving device (4) further comprises:
a ferrule (41), the ferrule (41) cooperating with the housing (400) and the outer sleeve (2) respectively to drive the outer sleeve (2) to move when the electric wrench (40) moves, the ferrule (41) and the outer sleeve (2) cooperating rotationally.
3. The gun core pulling device (10000) for replacing a gun core according to claim 2, wherein a snap ring (21) is arranged on the outer peripheral wall of the outer sleeve (2), and the inner peripheral wall of the snap ring (41) is respectively in contact fit with the outer peripheral wall of the snap ring (21) and the outer peripheral wall of the outer sleeve (2).
4. The barrel drawing device (10000) for replacing a barrel according to claim 3, further comprising a gasket (5), wherein the gasket (5) is arranged on an end face of the snap ring (21) far away from the housing (400).
5. The core pulling device (10000) for replacing a gun core according to claim 2, wherein the first fitting member (4000) and the second fitting member (20) are respectively formed in a tooth shape of a ring shape, and the first fitting member (4000) and the second fitting member (20) are engaged or disengaged.
6. The barrel drawing device (10000) for replacing a barrel according to claim 2, wherein the ferrule (41) is detachably provided on the housing (400) by a fixing member.
7. The barrel drawing device (10000) for replacing a barrel according to claim 1, wherein said positioning member (3) comprises: fixed part (30) and a plurality of pin (31), establish a plurality of pin (31) on fixed part (30), be equipped with a plurality of fixed orificess on the furnace body, a plurality of pin (31) are suitable for one-to-one stretch into in a plurality of fixed orificess with outside sleeve (2) location is in on the furnace body.
8. The barrel drawing device (10000) for replacing a barrel according to claim 7, wherein the fixing portion (30) is formed in a closed loop type structure.
9. The barrel drawing device (10000) for replacing a barrel according to claim 7, wherein the fixing portion (30) and the outer sleeve (2) are integrally formed.
10. The barrel drawing device (10000) for replacing a barrel according to any of claims 1-9, wherein the first thread (10) is an internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423019.0A CN107175614B (en) | 2017-06-07 | 2017-06-07 | Gun core pulling device for replacing gun core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423019.0A CN107175614B (en) | 2017-06-07 | 2017-06-07 | Gun core pulling device for replacing gun core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107175614A CN107175614A (en) | 2017-09-19 |
| CN107175614B true CN107175614B (en) | 2023-01-13 |
Family
ID=59836675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710423019.0A Active CN107175614B (en) | 2017-06-07 | 2017-06-07 | Gun core pulling device for replacing gun core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107175614B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571366A (en) * | 2020-12-16 | 2021-03-30 | 浙江青牛智能科技有限公司 | Pipeline inner pipe dragging device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2335748Y (en) * | 1998-07-02 | 1999-09-01 | 皇甫鹤基 | Hydraulic drawing-off device |
| US6637089B1 (en) * | 2002-04-09 | 2003-10-28 | English Richard Leroy | Compression sleeve puller with double thread engagement |
| CN202448097U (en) * | 2012-03-06 | 2012-09-26 | 保定天威英利新能源有限公司 | Bearing box dismounting tool for silicon briquette cutting equipment |
| CN202805080U (en) * | 2012-09-03 | 2013-03-20 | 西仪集团有限责任公司 | Taper pin removing tool |
| CN104175278A (en) * | 2013-05-24 | 2014-12-03 | 富泰华工业（深圳）有限公司 | Pin puller |
| CN204094710U (en) * | 2014-08-09 | 2015-01-14 | 南宁市三华太阳能科技有限公司 | A kind of location pin pulling out device |
| CN204019455U (en) * | 2014-08-15 | 2014-12-17 | 广州宝钿机械有限公司 | A kind of pin removal |
| CN105710829A (en) * | 2016-04-28 | 2016-06-29 | 桂林睿仕机械设备有限公司 | Dowel detachment device |
| CN106181882A (en) * | 2016-08-09 | 2016-12-07 | 哈尔滨汽轮机厂有限责任公司 | The pin pulling out device that partition board of steam turbine is reprocessed |
| CN206869772U (en) * | 2017-06-07 | 2018-01-12 | 中国恩菲工程技术有限公司 | For changing the core apparatus of drawing guns of rifle core |
-
2017
- 2017-06-07 CN CN201710423019.0A patent/CN107175614B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107175614A (en) | 2017-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208832080U (en) | The oil nozzle joint structure of fast disassembly type | |
| CN107175614B (en) | Gun core pulling device for replacing gun core | |
| WO2015135453A1 (en) | Reducer with double-clutch structure | |
| CN106103001A (en) | The operated fastener driving tool of pyrotechnic | |
| CN106312920A (en) | Retainer mounting and dismounting device | |
| CN102500493A (en) | Foaming gun | |
| CN109773382B (en) | Iron tower internal welding machine head equipment | |
| CN206869772U (en) | For changing the core apparatus of drawing guns of rifle core | |
| CN215760623U (en) | Hole plugging device | |
| CN209081986U (en) | A kind of clamping device of sphere thermal spraying | |
| CN203621660U (en) | Tapping depth control device | |
| CN207898191U (en) | A kind of cleaning brush that double angles use | |
| JP2014516800A (en) | Mold pin for separate mold | |
| CN220753365U (en) | Electric advancing and retreating joint for bulb installation | |
| CN107262615B (en) | Pipe expander | |
| CN216803896U (en) | A novel feed system for pole production | |
| CN219317427U (en) | Wear-resistant spindle assembly | |
| CN210440757U (en) | Self-locking quick multifunctional hydraulic joint | |
| CN219211509U (en) | Lithium electric hand riveter | |
| CN212055030U (en) | Novel piston structure for refrigerant recycling machine and refrigerant recycling machine | |
| CN203911662U (en) | Tubular motor with manual control device | |
| CN215847965U (en) | Bearing disassembling tool | |
| CN219265419U (en) | Material level gauge special for blast furnace ironmaking | |
| CN218352339U (en) | Electric push rod | |
| CN210440313U (en) | Hydraulic cylinder with piston rod rotation stopping function |
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 |