CN113530948A - Quick change mechanism with anti-loosening eccentric crank - Google Patents
Quick change mechanism with anti-loosening eccentric crank Download PDFInfo
- Publication number
- CN113530948A CN113530948A CN202110898660.6A CN202110898660A CN113530948A CN 113530948 A CN113530948 A CN 113530948A CN 202110898660 A CN202110898660 A CN 202110898660A CN 113530948 A CN113530948 A CN 113530948A
- Authority
- CN
- China
- Prior art keywords
- crank
- screw
- change mechanism
- quick
- interface
- 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.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims description 3
- 238000005256 carbonitriding Methods 0.000 claims description 3
- 238000005255 carburizing Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 4
- 239000004519 grease Substances 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 239000000314 lubricant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a quick-change mechanism with a locking eccentric crank, which comprises a crank, a screw and an interface, wherein the crank is rotatably arranged at the upper end of the screw, the interface is arranged at the lower end of the crank, the screw penetrates through the interface, the left end of the crank is in an arc shape and is in an eccentric structure with a thick middle part and thin two sides. The tail end of the crank is eccentrically arranged, in the process of pressing the crank, the eccentricity of the contact point of the crank and the cushion block is firstly large and then small, so that the crank cannot loosen after pressing is finished, meanwhile, a stop block is arranged on the interface or the cushion block with a groove is used for limiting the crank, so that the screw cannot be screwed out of the connected piece, the purpose of preventing loosening is realized, the screw is screwed into the connected piece and then the crank is pressed to realize connection, the connection process is convenient and fast, no stress friction is generated between the bolt and the internal thread, grease in the oil groove is extruded to a stress surface due to the added oil groove structure, a lubricating effect is realized, and the stress surface can be prevented from being corroded after being damaged.
Description
Technical Field
The invention relates to the field of connecting pieces, in particular to a quick-change mechanism with an anti-loosening eccentric crank.
Background
The quick-change structure is used for safely and quickly disassembling and fastening connection, the battery pack is taken as the mainstream design along with the new energy battery pack of the automobile, the running distance of the battery pack for power supply is short, when the battery pack is not required to be replaced or the charging time is not required, the battery pack is replaced, the fastening reliability and the repeated use are difficult points when the battery pack is replaced, the quick-change mechanism is generally used for connecting the automobile body and the battery pack, at present, a plurality of connecting devices only have the function of quick connection, the safety problems of looseness prevention and the like are neglected, or only the anti-loosening arrangement is carried out, the connection speed is not high, the bolt which is commonly used at present needs to be inserted into one side of the bolt with the nut by a worker, then the nut is screwed up by a tool on the other side, the connection and fastening method is only suitable for the open cross-section structure, the bolt connection and the disassembly are more complicated, therefore, it is necessary to design a quick-change mechanism that can ensure both quick connection and connection safety.
Disclosure of Invention
The invention aims to provide a quick-change mechanism with an anti-loosening eccentric crank, which aims to solve the technical defects and the technical requirements which cannot be met in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a take locking eccentric crank's quick change mechanism, includes crank, screw rod, interface, the crank rotates and installs in the screw rod upper end, articulate lower extreme is equipped with the interface, the screw rod passes the interface, articulate left end is circular-arc, and is middle thick, the thin eccentric structure in both sides.
Preferably, the upper end of the screw rod is provided with a pin sleeve, the left end of the crank is provided with a pin hole, and the pin sleeve is connected with the pin hole through a pin.
Preferably, the lower end of the crank is also provided with one or more oil grooves.
Preferably, a cushion block is arranged between the lower surface of the left end of the crank and the interface, a stop block is arranged on the side face of the right end of the crank, and the stop block is used for preventing the screw from loosening.
Preferably, a groove cushion block is arranged between the lower surface of the left end of the crank and the interface, and a groove is formed in the middle of the groove cushion block.
Preferably, the screw rod is made of SC435 alloy structural steel, the crank and the pin are made of bearing steel, and the pin sleeve is made of high-strength self-lubricating copper.
Preferably, the surfaces of the crank, the screw, the pin and the pin sleeve are all plated with zinc-nickel alloy or zinc-aluminum.
Preferably, the length of the screw is 10 times its nominal length.
Preferably, the crank and the pin are subjected to carbonitriding treatment or high-frequency quenching treatment or carburizing treatment.
Compared with the prior art, the invention has the following beneficial effects: the tail end of the crank is eccentrically arranged, in the process of pressing the crank, the eccentricity of the contact point of the crank and the cushion block is firstly large and then small, so that the crank cannot loosen after pressing is finished, meanwhile, a stop block is arranged on the interface or the cushion block with a groove is used for limiting the crank, so that the screw cannot be screwed out of the connected piece, the purpose of preventing loosening is realized, the screw is screwed into the connected piece and then the crank is pressed to realize connection, the connection process is convenient and fast, no stress friction is generated between the bolt and the internal thread, grease in the oil groove is extruded to a stress surface due to the added oil groove structure, a lubricating effect is realized, and the stress surface can be prevented from being corroded after being damaged.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic view of the screw according to the present invention;
FIG. 4 is a schematic view of a crank according to the present invention;
FIG. 5 is a schematic view of a pin according to the present invention;
in the figure: 10-a crank; 11-a screw; 12-a pin; 13-pin bush; 14-pin holes; 15-oil groove; 16-interface; 17-cushion blocks; 18-groove cushion blocks; 19-a stop.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a quick-change mechanism with a locking eccentric crank comprises a crank 10, a screw 11 and an interface 16, wherein the crank 10 is rotatably installed at the upper end of the screw 11, the interface 16 is arranged at the lower end of the crank 10, the screw 11 penetrates through the interface 16, the left end of the crank 10 is arc-shaped and is of an eccentric structure with a thick middle part and thin two sides; the eccentric configuration of the crank 10 allows the crank 10 to be tightened without loosening.
The upper end of the screw rod 11 is provided with a pin sleeve 13, the left end of the crank 10 is provided with a pin hole 14, and the pin sleeve 13 and the pin hole 14 are connected together through a pin 12.
The lower end of the crank 10 is also provided with one or more oil grooves 15; the lubricant is used for storing lubricant, and the lubricant can lubricate the stress surface and prevent the stress surface from being corroded.
A cushion block 17 is arranged between the lower surface of the left end of the crank 10 and the interface 16, a stop block 19 is arranged on the side surface of the right end of the crank 10, and the stop block 19 is used for preventing the screw 11 from being unscrewed.
A groove cushion block 18 is arranged between the lower surface of the left end of the crank 10 and the interface 16, and a groove is formed in the middle of the groove cushion block 18; the groove pad 18 prevents the screw 11 from unscrewing.
The screw 11 is made of SC435 alloy structural steel, the crank 10 and the pin 12 are made of bearing steel, and the pin sleeve 13 is made of high-strength self-lubricating copper.
The surfaces of the crank 10, the screw 11, the pin 12 and the pin sleeve 13 are all plated with zinc-nickel alloy or zinc-aluminum.
The length of the screw 11 is 10 times its nominal length.
The crank 10 and the pin 12 are both subjected to carbonitriding treatment, high-frequency quenching treatment or carburizing treatment.
The working principle is as follows: pass interface 16 screw in with screw rod 11 and by the connecting piece, after the screw in reached the certain degree, compress tightly crank 10 for the eccentricity of crank 10 and cushion contact point is less than the eccentricity of contacting the left end, makes crank 10 can not screw at will, realizes loosening the function, and dog 19 sets up on the interface of crank 10 right-hand member simultaneously, is equipped with the recess on the recess cushion 18, and is spacing to crank 10, prevents that screw rod 11 from loosening by screwing in, realizes locking function.
For ease of description, the orientations referred to above are now specified as follows: the up, down, left, right, and front-back directions described above coincide with the up, down, left, right, and front-back directions of the projection relation of fig. 1 itself.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a take locking eccentric crank's quick change mechanism, its characterized in that includes crank (10), screw rod (11), interface (16), crank (10) are rotated and are installed in screw rod (11) upper end, the lower extreme of crank (10) is equipped with interface (16), interface (16) are passed in screw rod (11), the left end of crank (10) is circular-arc, and is the eccentric structure of middle thick, both sides are thin.
2. The quick-change mechanism with the anti-loosening eccentric crank is characterized in that a pin sleeve (13) is arranged at the upper end of the screw (11), a pin hole (14) is formed in the left end of the crank (10), and the pin sleeve (13) is connected with the pin hole (14) through a pin (12).
3. The quick-change mechanism with the anti-loosening eccentric crank is characterized in that the lower end of the crank (10) is also provided with one or more oil grooves (15).
4. The quick-change mechanism with the anti-loosening eccentric crank is characterized in that a cushion block (17) is arranged between the lower surface of the left end of the crank (10) and the interface (16), a stop block (19) is arranged on the side surface of the right end of the crank (10), and the stop block (19) is used for preventing the screw (11) from being unscrewed.
5. The quick-change mechanism with the anti-loosening eccentric crank is characterized in that a groove cushion block (18) is arranged between the lower surface of the left end of the crank (10) and the interface (16), and a groove is formed in the middle of the groove cushion block (18).
6. The quick-change mechanism with the anti-loosening eccentric crank is characterized in that the screw (11) is made of SC435 alloy structural steel, the crank (10) and the pin (12) are made of bearing steel, and the pin sleeve (13) is made of high-strength self-lubricating copper.
7. The quick-change mechanism with the anti-loosening eccentric crank is characterized in that the surfaces of the crank (10), the screw (11), the pin (12) and the pin sleeve (13) are plated with zinc-nickel alloy or zinc-aluminum.
8. The quick-change mechanism with anti-loosening eccentric crank according to claim 2, characterized in that the length of the screw (11) is 10 times its nominal length.
9. The quick-change mechanism with the anti-loosening eccentric crank is characterized in that the crank (10) and the pin (12) are subjected to carbonitriding treatment, high-frequency quenching treatment or carburizing treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110898660.6A CN113530948A (en) | 2021-08-05 | 2021-08-05 | Quick change mechanism with anti-loosening eccentric crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110898660.6A CN113530948A (en) | 2021-08-05 | 2021-08-05 | Quick change mechanism with anti-loosening eccentric crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113530948A true CN113530948A (en) | 2021-10-22 |
Family
ID=78122085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110898660.6A Pending CN113530948A (en) | 2021-08-05 | 2021-08-05 | Quick change mechanism with anti-loosening eccentric crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113530948A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043690U (en) * | 1989-01-28 | 1989-08-30 | 杨宪玉 | Open and close mechanism with four connecting rods and sliding slots |
| US6277069B1 (en) * | 1998-06-09 | 2001-08-21 | Pine Ridge Holding Pty. Ltd. | Clamping device |
| FR2868488A1 (en) * | 2004-04-05 | 2005-10-07 | Silva Henrique Da | Mechanical parts screwing and unscrewing device, has support part fixed on threaded rod of screw to be off-centered with respect to rod and extended by lever to take two positions, and pin for holding assembled support part and rod |
| CN109795605A (en) * | 2019-03-14 | 2019-05-24 | 江苏爱特福股份有限公司 | A kind of crank device of electric bicycle |
| US20200271145A1 (en) * | 2019-02-27 | 2020-08-27 | Flexicon Corporation | Toggle cam bolt |
| CN112776654A (en) * | 2019-11-05 | 2021-05-11 | 广州汽车集团股份有限公司 | Locking mechanism and quick-change mechanism of power battery |
-
2021
- 2021-08-05 CN CN202110898660.6A patent/CN113530948A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043690U (en) * | 1989-01-28 | 1989-08-30 | 杨宪玉 | Open and close mechanism with four connecting rods and sliding slots |
| US6277069B1 (en) * | 1998-06-09 | 2001-08-21 | Pine Ridge Holding Pty. Ltd. | Clamping device |
| FR2868488A1 (en) * | 2004-04-05 | 2005-10-07 | Silva Henrique Da | Mechanical parts screwing and unscrewing device, has support part fixed on threaded rod of screw to be off-centered with respect to rod and extended by lever to take two positions, and pin for holding assembled support part and rod |
| US20200271145A1 (en) * | 2019-02-27 | 2020-08-27 | Flexicon Corporation | Toggle cam bolt |
| CN109795605A (en) * | 2019-03-14 | 2019-05-24 | 江苏爱特福股份有限公司 | A kind of crank device of electric bicycle |
| CN112776654A (en) * | 2019-11-05 | 2021-05-11 | 广州汽车集团股份有限公司 | Locking mechanism and quick-change mechanism of power battery |
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| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211022 |
|
| WD01 | Invention patent application deemed withdrawn after publication |