CN114571405B - Self-locking puller for ship-based and ground electronic modules - Google Patents
Self-locking puller for ship-based and ground electronic modules Download PDFInfo
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- CN114571405B CN114571405B CN202210350120.9A CN202210350120A CN114571405B CN 114571405 B CN114571405 B CN 114571405B CN 202210350120 A CN202210350120 A CN 202210350120A CN 114571405 B CN114571405 B CN 114571405B
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- puller
- operating handle
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- extractor
- locking
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- 241000282376 Panthera tigris Species 0.000 claims abstract description 19
- 238000003780 insertion Methods 0.000 claims abstract description 11
- 230000037431 insertion Effects 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000004088 simulation Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 description 15
- 238000003754 machining Methods 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Classifications
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- 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
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a ship-based and ground electronic module self-locking extractor, which comprises an extractor operating handle, a spring bolt pressure spring and a spring bolt, wherein the spring bolt pressure spring and the spring bolt are installed in the extractor operating handle through an unlocking slide block in a riveting way to form an operating handle self-locking device; the puller base forms a complete electronic module self-locking puller main body with the puller operating handle through the shaft pin and the torsion spring, the torsion spring realizes the rotation of the puller operating handle, and the lock tongue is matched with the slot wall of the slot on the puller base to lock; the front end of the extractor operating handle is provided with a tiger mouth, and the length of the extractor operating handle is set to form a 5.16:1 proportional relation according to a hand operating force arm H and a tiger mouth force arm L; the front end of the lock tongue is defined as an insertion end, the insertion end is a wedge block, the wedge block is inserted into the slot of the puller base, and a clearance travel is arranged on the wedge block relative to the slot of the puller base. The plug module has the advantages of labor saving in operation and quick maintenance, and can dynamically compensate the matching distance of the male and female connectors.
Description
Technical Field
The invention relates to the technical field of ship-based and ground electronic communication information, in particular to a quick plugging and locking puller applied to a high-speed signal connector module with large plugging force and high precision requirements, and particularly relates to a self-locking puller for a ship-based and ground electronic module.
Background
At present, in the industry of ship-based and ground electronic communication equipment, the module is mostly plugged and locked by a puller. Industry development trend is also higher and higher to the integration level of electronic communication module and the transmission rate requirement of high-speed signal connector, can lead to the high-speed signal connector density that module used to become big like this, and the male and female end cooperation precision of high-speed signal connector becomes higher. How to solve such large plugging force of the connector, the convenient, rapid and labor-saving plugging maintenance module and the improvement of the effective connection distance between the male end and the female end of the high-speed connector become more important.
Currently, taking a VPX module applied on a ship and the ground as an example, 1) the plugging force of the whole module is 702N, the ratio of a hand operated pulling force arm to a tiger mouth force arm of a traditional plastic pulling device is 2.5:1, thus the force of the hand operation needs 702/(2.5×2) =140.4N, the normal comfortable pulling force range is 60-70N, and the plugging maintenance of the module is very difficult due to the 140.4N operating force; 2) The effective connection distance between the male end and the female end of the VPX module connector is 0.85mm, and the tolerance of the male end connector and the female end connector is calculated by a front plug module, a rear plug module, a plug box and a backboard dimension chain as follows: (1) calculating tolerance of +/-1 mm by an extremum method; (2) probabilistic calculation tolerance is + -0.75 mm. The traditional plastic extractor has no gap stroke and overpressure stroke design, and risks that the male-female end interference fit is damaged due to extrusion force caused by probability poor contact of the connector exist.
Disclosure of Invention
Aiming at the problems that the existing carrier-based and ground electronic module extractor is difficult to insert and extract, and the contact failure and overvoltage damage exist in the matching of the male and female end high-speed connectors, the invention provides the carrier-based and ground electronic module self-locking extractor which has the advantages of labor-saving operation and quick maintenance of the insert and extract module and can dynamically compensate the matching distance of the male and female end connectors.
The invention provides the following technical scheme:
the self-locking puller for the ship-based and ground electronic module comprises a puller operating handle, a spring bolt pressure spring and a spring bolt, wherein the spring bolt pressure spring and the spring bolt are installed in the puller operating handle through an unlocking slide block in a riveting manner to form an operating handle self-locking device; the puller base forms a complete electronic module self-locking puller main body with the puller operating handle through the shaft pin and the torsion spring, the torsion spring realizes the rotation of the puller operating handle, and the lock tongue is matched with the slot wall of the slot on the puller base to lock;
the front end of the extractor operating handle is provided with a tiger mouth, and the length of the extractor operating handle is set to form a 5.16:1 proportional relation according to a hand operating force arm H and a tiger mouth force arm L;
the front end of the lock tongue is defined as an insertion end, the insertion end is a wedge block, the wedge block is inserted into the slot of the puller base, and a clearance travel is arranged on the wedge block relative to the slot of the puller base.
In the technical scheme of the invention, the main body of the puller is designed with a clearance travel, the rotation angle of the puller can be 1.5 degrees, the horizontal displacement overvoltage quantity transmitted to the module is 0.3mm, and the clearance fit between the male end and the female end of the connector, which is caused by machining and assembly tolerances, of the compensation module is within 0.85mm of the effective clearance fit of the male end and the female end of the connector, so that the signal transmission reliability of the high-speed connector is improved.
In the technical scheme of the invention, in order to solve the problems of large module plugging force, difficult operation and maintenance time cost saving, the ratio of a manually operated pulling force arm of a pulling device to a force arm of a tiger mouth is designed to be 5.16:1, the distance from an operating handle to a rotating shaft of the pulling device is 65mm, and the distance from the pulling tiger mouth to the rotating shaft of the pulling device is 12.6mm, so that the manually operated force needs to be 702/(5.16×2) =68N, the ergonomic comfortable operation force is met, the module plugging can be conveniently and rapidly completed, the defects of difficult operation and time consumption of the existing pulling device are overcome, and meanwhile, the module replacement and maintenance time cost can be saved.
For the optimization of the technical scheme of the invention, the slot on the puller base is a triangular groove; the contact surface of the wedge block and the slot is an upper limit stop fit surface and a lower limit stop fit surface; when the wedge block is inserted into the slot, a gap is reserved between the upper limit stop fit surface and the lower limit stop fit surface of the wedge block and the slot wall of the slot. In the technical scheme of the invention, a clearance is formed between the upper limit stop fit surface and the lower limit stop fit surface of the wedge block and the slot wall of the slot, namely, an overpressure stroke, the reverse clearance rotation angle of the puller is 1.5 degrees, the clearance amount transmitted to the module horizontal displacement is 0.3mm, and the risk of interference fit extrusion damage of the male end and the female end of the connector caused by processing and assembly tolerances of the module is reduced. The problems of poor contact and extrusion damage of the male end and the female end of the high-speed connector caused by machining and assembly tolerances are solved, and meanwhile, effective connection guarantee is provided for larger-size module design and long-size chain module design, and design and machining difficulty are reduced.
For the optimization of the technical scheme of the invention, the carrier-based and ground electronic module self-locking puller further comprises a loosening-preventing screw which is arranged on a puller base, and the loosening-preventing screw is an outsourcing piece and is directly purchased; the design of the loose screw avoids the difficulty of looking for the screw everywhere during installation.
According to the technical scheme, the pin shafts with different lengths are arranged on the puller base in a protruding mode, and the pin shafts play a role in auxiliary positioning when the electronic module case is inserted.
Compared with the prior art, the invention has the beneficial effects that:
1. The self-locking puller for the ship-based and ground electronic modules solves the problems of high module plugging force, difficult operation and maintenance time cost saving. According to the invention, the ratio of the pulling force arm of the manual operation of the pulling robot to the force arm of the tiger mouth is designed to be 5.16:1, the distance from the operating handle to the rotating shaft of the pulling robot is 65mm, and the distance from the tiger mouth of the pulling robot to the rotating shaft of the pulling robot is 12.6mm, so that the force required by the manual operation is 702/(5.16 x 2) =68N, the ergonomic comfortable operation force is met, the module insertion can be conveniently and rapidly completed, the defects of difficult operation and time consumption of the existing pulling robot are overcome, and meanwhile, the time cost for replacing and maintaining the module can be saved.
2. According to the self-locking puller for the ship-based and ground electronic module, disclosed by the invention, the connection reliability of the male and female ends of the high-speed signal connector in cooperation is improved, and the risk of extrusion damage of the male and female ends of the connector caused by interference fit is reduced. The invention designs a clearance travel for the puller, the analog conversion clearance angle of the three-dimensional model is 1.5 degrees, the horizontal displacement overpressure of the transmission module is 0.3mm, and the fit clearance of the male end and the female end of the connector, which is caused by machining and assembly tolerances, of the compensation module is within 8.5mm of the effective fit clearance of the male end and the female end of the connector, so that the signal transmission reliability of the high-speed connector is improved. The invention designs an overpressure stroke for the extractor, the analog conversion clearance angle of the three-dimensional model is 1.5 degrees, the horizontal displacement clearance amount of the transmission module is 0.3mm, and the risk of interference fit extrusion damage of the male end and the female end of the connector caused by processing and assembly tolerances of the module is reduced; the problems of poor contact and extrusion damage of the male end and the female end of the high-speed connector caused by machining and assembly tolerances are solved, and meanwhile, effective connection guarantee is provided for larger-size module design and long-size chain module design, and design and machining difficulty are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a self-locking extractor for a ship-based and ground electronic module according to this embodiment.
Fig. 2 is a first cut-away view of the self-locking extractor of the carrier-based and ground electronic module of this embodiment (in the figure, the upper limit stop mating surface of the lock tongue contacts the slot wall of the slot).
Fig. 3 is a schematic view of the lower limit stop mating surface of the latch of fig. 2 contacting the slot wall of the slot.
Fig. 4 is a second cutaway view of the carrier-based and ground electronics module self-locking extractor of the present embodiment.
Fig. 5 is an exploded view of the self-locking extractor of the carrier-based and ground electronics module of the present embodiment.
Fig. 6 is a front view of the extractor of the present embodiment (the hand operation arm and the tiger mouth arm are schematically shown in the figure).
Fig. 7 is a state diagram of an electronic module and a chassis inserting operation assembled by using a self-locking extractor body according to the present embodiment.
Fig. 8 is a state diagram of the case and the electronic module assembled by the self-locking extractor body according to the present embodiment.
Fig. 9 is a schematic view of the rotation angle of the clearance stroke and the rotation angle of the overpressure stroke of the puller in this embodiment.
Detailed Description
The technical scheme of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
In order to make the contents of the present invention more comprehensible, the present invention is further described with reference to fig. 1 to 9 and the detailed description below.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the self-locking extractor packaging structure of the ship-based and ground electronic module of the embodiment comprises an extractor operating handle 1, a spring bolt pressure spring 3 and a spring bolt 4 which are installed in the extractor operating handle 1 through an unlocking slide block 2 in a riveting manner to form an operating handle self-locking device; the puller base 6 and the puller operating handle 1 form a complete electronic module self-locking puller main body through the shaft pin 7 and the torsion spring 8, the torsion spring 8 realizes the rotation of the puller operating handle, and the lock tongue 4 is matched with the slot wall of the slot on the puller base 6 to achieve locking.
As shown in fig. 1 and 5, the carrier-based and ground electronic module self-locking extractor further comprises a non-loosening screw 5, wherein the non-loosening screw 5 is arranged on the extractor base 6. The non-loosening screw 5 is used for being fixed with the case; pin shafts 6-1 with different lengths are arranged on the puller base 6 in a protruding mode. The pin shafts with different lengths play a role in auxiliary positioning when being inserted into the electronic module case.
As shown in fig. 1 and 6, the front end of the extractor operating handle 1 is provided with a tiger mouth, and the length of the extractor operating handle 1 is set to form a 5.16:1 proportional relation according to a hand operating force arm H and a tiger mouth force arm L. In the process of inserting and operating the module assembled by the self-locking extractor body and the chassis, the upper tiger mouth of the extractor operating handle 1 is attached to the extracting surface of the chassis extracting groove 9, the tail end of the extractor operating handle 1 is pressed, and the hand operating force arm and the tiger mouth force arm form a 5.16:1 proportional relationship.
As shown in fig. 7, in this embodiment, in the process of inserting the electronic module assembled by the self-locking extractor body and the chassis, the upper jaw of the extractor operating handle 1 is attached to the extracting surface of the chassis extracting groove 9, the tail end of the extractor operating handle 1 is pressed, the hand operating arm and the jaw arm form a 5.16:1 proportional relationship, the hand operating force is 68N, the ergonomic comfort operating force is met, and the lock tongue 4 is sprung into the notch of the base 6 under the action of the lock tongue pressure spring 3 to form locking, so that the module is ensured to be inserted and extracted in place. The effect of fast and convenient completion of the insertion and the extraction of the module is achieved, and the operation time is saved.
As shown in fig. 6 and 7, in this embodiment, the ratio of the pull arm of force operated by the user of the pull-up device to the arm of force of the tiger is designed to be 5.16:1, the distance from the operating handle to the rotating shaft of the pull-up device, i.e. the arm of force H operated by the user of the pull-up device is 65mm, the distance from the tiger to the rotating shaft of the pull-up device, i.e. the arm of force L operated by the user of the tiger is 12.6mm, so that the force required by the user of the operation of the human hand is 702/(5.16×2) =68n, the ergonomically comfortable operation force is met, the module insertion can be conveniently and rapidly completed, the defects of difficult operation and time consumption of the existing pull-up device are overcome, and meanwhile, the time cost for module replacement and maintenance can be saved.
As shown in fig. 7, the hand operating arm H of the present embodiment is 65mm, and a section H for holding the fingers of the operator is extended backward at the end of the hand operating arm, in this embodiment, h=10mm is preferable.
As shown in fig. 8, in this embodiment, in the process of pulling out the module assembled by the self-locking extractor body and the chassis, the unlocking slide block 2 is slid to separate the lock tongue 4 from the notch of the extractor base 6, the lock tongue automatically rotates under the action of the torsion spring 8 until the lower jaw is attached to the pulling surface of the chassis pulling groove 9, the extractor operating handle 1 is pulled out, the manual operating arm and the jaw arm form a 5.16:1 proportional relationship, the module high-speed connector separating force is 140N, the manual operating force is 13.6N at this time, the ergonomic comfortable operating force is met, and the module is pulled out.
As shown in fig. 2 and 3, the front end of the lock tongue 4 is defined as an insertion end, the insertion end is a wedge block, the wedge block is inserted into the slot of the extractor base 6, and the wedge block is provided with a clearance travel relative to the slot of the extractor base 6.
As shown in fig. 2 and 3, the slot on the puller base 6 is a triangular groove; the contact surface of the wedge block and the slot is an upper limit stop fit surface 4-1 and a lower limit stop fit surface 4-2; when the wedge block is inserted into the slot, a gap is reserved between the upper limit stop fit surface 4-1 and the lower limit stop fit surface 4-2 of the wedge block and the slot wall of the slot. The design of the gap enables the puller of the embodiment to have a positive rotation angle and a negative rotation angle.
In this embodiment, as shown in fig. 9, a gap is formed between the upper limit stop mating surface 4-1 and the lower limit stop mating surface 4-2 of the wedge block and the slot wall of the slot, the gap travel is simulated and converted into a gap angle of 1.5 degrees in the three-dimensional model, and the horizontal displacement overpressure of the transmission module is 0.3mm.
As shown in fig. 2,3 and 9. In the technical scheme of the embodiment, a clearance is reserved between the upper limit stop fit surface and the lower limit stop fit surface of the wedge block and the slot wall of the slot, the overpressure rotation angle of the puller is 1.5 degrees, the overpressure amount of the horizontal displacement transmitted to the module is 0.3mm, and the clearance between the male end and the female end of the connector, which is caused by machining and assembly tolerances, is compensated to be within 0.85mm of the effective fit clearance of the male end and the female end of the connector, so that the signal transmission reliability of the high-speed connector is improved.
As shown in fig. 2,3 and 9, the embodiment designs an overpressure stroke for the puller, a gap is formed between the upper limit stop fit surface and the lower limit stop fit surface of the wedge block and the slot wall of the slot, the puller can rotate at a reverse gap rotation angle of 1.5 degrees, the gap amount of horizontal displacement transmitted to the module is 0.3mm, and the risk of interference fit extrusion damage of the male end and the female end of the connector caused by processing and assembly tolerances of the module is reduced. The problems of poor contact and extrusion damage of the male end and the female end of the high-speed connector caused by machining and assembly tolerances are solved, and meanwhile, effective connection guarantee is provided for larger-size module design and long-size chain module design, and design and machining difficulty are reduced.
The carrier-based and ground electronic module self-locking extractor of the embodiment has the advantages that the operation of the inserting and extracting module is labor-saving, the maintenance is quick, and meanwhile, the dynamic compensation can be carried out on the matching distance of the male and female end connectors.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereto, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the present invention.
Claims (2)
1. The utility model provides a carrier-borne and ground electronic module auto-lock extractor which characterized in that: the self-locking device comprises a puller operating handle (1), wherein a spring bolt pressure spring (3) and a spring bolt (4) are installed in the puller operating handle (1) in a riveting way through an unlocking sliding block (2) to form an operating handle self-locking device; the puller base (6) and the puller operating handle (1) form a complete electronic module self-locking puller main body through the shaft pin (7) and the torsion spring (8), the torsion spring (8) realizes the rotation of the puller operating handle, and the lock tongue (4) is matched with the slot wall of the slot on the puller base (6) to realize locking;
The front end of the extractor operating handle (1) is provided with a tiger mouth, and the length of the extractor operating handle (1) is set to form a 5.16:1 proportional relation according to a hand operating force arm H and a tiger mouth force arm L;
The front end of the lock tongue (4) is defined as an insertion end, the insertion end is a wedge block, the wedge block is inserted into a slot of the puller base (6), and a clearance stroke is arranged on the wedge block relative to the slot of the puller base (6); the gap travel is converted in a three-dimensional model by simulation, the gap angle is 1.5 degrees, and the overpressure transmitted to the horizontal displacement of the module is 0.3 mm;
the slot on the puller base (6) is a triangular groove; the contact surface of the wedge block and the slot is an upper limit stop fit surface (4-1) and a lower limit stop fit surface (4-2); when the wedge block is inserted into the slot, a gap is reserved between the upper limit stop fit surface (4-1) and the lower limit stop fit surface (4-2) of the wedge block and the slot wall of the slot; pin shafts (6-1) with different lengths are arranged on the puller base (6) in a protruding mode.
2. The carrier-based and ground electronic module self-locking extractor of claim 1, wherein: the ship-based and ground electronic module self-locking extractor further comprises a loosening-preventing screw (5), and the loosening-preventing screw (5) is arranged on the extractor base (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210350120.9A CN114571405B (en) | 2022-04-02 | 2022-04-02 | Self-locking puller for ship-based and ground electronic modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210350120.9A CN114571405B (en) | 2022-04-02 | 2022-04-02 | Self-locking puller for ship-based and ground electronic modules |
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| Publication Number | Publication Date |
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| CN114571405A CN114571405A (en) | 2022-06-03 |
| CN114571405B true CN114571405B (en) | 2024-07-09 |
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| CN202210350120.9A Active CN114571405B (en) | 2022-04-02 | 2022-04-02 | Self-locking puller for ship-based and ground electronic modules |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674816Y (en) * | 2003-12-29 | 2005-01-26 | 中兴通讯股份有限公司 | Printed circuitboard and withdrawing device for module |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3529565B2 (en) * | 1996-09-30 | 2004-05-24 | アマノ株式会社 | Hose removal tool |
| CN2536354Y (en) * | 2002-03-29 | 2003-02-19 | 深圳市中兴通讯股份有限公司上海第二研究所 | Puller |
| US9635795B2 (en) * | 2012-10-23 | 2017-04-25 | International Business Machines Corporation | Multiple expansion card insertion and extraction tool |
| CN107214657A (en) * | 2016-03-21 | 2017-09-29 | 中兴通讯股份有限公司 | Driver-extractor |
| JP2019212720A (en) * | 2018-06-01 | 2019-12-12 | 富士通株式会社 | Plug-in unit and electronic device |
| CN213210899U (en) * | 2020-10-19 | 2021-05-14 | 中国电子科技集团公司第十四研究所 | Plug-in and self-locking device, circuit plug-in unit with same and case |
| CN113163655A (en) * | 2021-03-30 | 2021-07-23 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | LRM module does not need instrument linkage locking pull-out device |
| CN216152237U (en) * | 2021-09-01 | 2022-04-01 | 宁波生久科技有限公司 | Folding pulling aid |
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2022
- 2022-04-02 CN CN202210350120.9A patent/CN114571405B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2674816Y (en) * | 2003-12-29 | 2005-01-26 | 中兴通讯股份有限公司 | Printed circuitboard and withdrawing device for module |
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| CN114571405A (en) | 2022-06-03 |
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