CN101892682B - Quick-change device for loader accessory - Google Patents
Quick-change device for loader accessory Download PDFInfo
- Publication number
- CN101892682B CN101892682B CN2010102394550A CN201010239455A CN101892682B CN 101892682 B CN101892682 B CN 101892682B CN 2010102394550 A CN2010102394550 A CN 2010102394550A CN 201010239455 A CN201010239455 A CN 201010239455A CN 101892682 B CN101892682 B CN 101892682B
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- accessory
- piston rod
- stop pin
- cylinder
- positioning supports
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Abstract
The invention discloses a quick-change device for a loader accessory. The device comprises an accessory connector and a lift arm which are fixedly connected, wherein the accessory connector comprises a fixing component, a locking component and a connecting plate; the locking component comprises a locking oil cylinder, a locking pin, a first positioning and supporting sleeve, a second positioning and supporting sleeve and two connecting blocks; the two ends of the fixing component are connected with hooks on both sides of the accessory respectively; the two ends of a double-piston rod of the locking oil cylinder are connected with the locking pin respectively; one end of the first positioning and supporting sleeve and one end of the second positioning and supporting sleeve are fixedly connected with the two ends of a shell respectively; and one end of each connecting block is fixedly connected with one end of a piston rod of the locking oil cylinder, and the other end of the connecting block is rotationally and movably connected with the other end of the locking pin. The rotation of the locking oil cylinder is limited so that the piston rod of the locking oil cylinder does not bear any torque and the service life of the piston rod of the locking oil cylinder is prolonged greatly. The locking pin can rotate along with the accessory so that abrasion between the locking pin and an accessory locking hole is reduced and the reliability of the locking component is enhanced.
Description
Technical field
The present invention relates to a kind of quick replacement device of operating apparatus quick replacement device, particularly loader accessory of engineering machinery, belong to technical field of engineering machinery.
Background technology
In order to improve the complete machine utilization rate of loader, having developed varied operating apparatus that can satisfy various different work demands at present is loader accessory.Early stage loader and scraper bowl are hinged through bearing pin, but must remove bearing pin earlier before the replacing accessory, and it is hinged with the new accessory of installing that bearing pin is installed behind the replacing accessory again, and this process is not only consuming time but also consume power, and this connected mode has hindered the development of accessory.In order to improve the efficient that accessory is changed; Disclose a kind of fast replacing device in the prior art and driven stop pin locking accessory through hydraulic jack; The piston rod of hydraulic jack is fixedly connected with stop pin, but because accessory work the time can be the center with the stop pin rotates, can apply certain moment of torsion to stop pin and piston rod simultaneously; The piston rod of hydraulic jack is if often bear moment of torsion, and distortion or cut off by torsional shearing stress easily twists.
Chinese patent manual CN100575620C discloses a kind of fast replacing device, and this device adopts the rationed marketing of two-part special lock to solve the problem that piston rod bears moment of torsion.This two-part special lock rationed marketing is adopted the on-circular cross-section structure to cooperate with installing hole on the loading arm near oil cylinder one side moment of torsion is passed to swing arm, thereby prevents that effectively piston rod from bearing moment of torsion, and one section that cooperates with the accessory lock hole is still adopted column structure.But because the on-circular cross-section of stop pin, make in the difficulty of processing stop pin and lock hole greatlyyer, have a strong impact on production efficiency, increased processing cost.During the loader operation, accessory rotates around stop pin, because stop pin can not rotate with accessory simultaneously, makes that the wearing and tearing between stop pin and the accessory lock hole aggravate; The construction machinery product operating environment is relatively poor, and stop pin is easy to bring into foreign material when inserting pin-and-hole, and above-mentioned reason causes stop pin and lock hole to lose efficacy in advance, has a strong impact on the application life of fast replacing device.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing quick-change device for loader accessory; Provide a kind of oil cylinder piston bar of can avoiding to bear moment of torsion; And the simple quick-change device for loader accessory of stop pin processing technology; The stop pin of this fast replacing device can rotate with accessory, has prolonged application life effectively.
The present invention is achieved through following technical scheme:
A kind of quick-change device for loader accessory; Comprise accessory coupling and lift arm; Said accessory coupling is fixedly connected with lift arm, and said accessory coupling comprises fixed part, Lock Part and junction plate, and said junction plate upper and lower side is connected with the two ends of fixed part and Lock Part respectively; Said Lock Part comprises housing, locked cylinder and stop pin, and said fixed part two ends are connected with accessory both sides hook respectively; Said locked cylinder, stop pin are arranged in the housing, and said locked cylinder is a double rod cylinder, and the double piston-rod two ends of locked cylinder are connected with stop pin respectively; During the locking accessory, said stop pin one end inserts the lock hole of accessory both sides respectively under the locked cylinder effect; Said Lock Part also comprises the first positioning supports cover, second positioning supports cover and two contiguous blocks that are arranged in the housing; First positioning supports is overlapped an end, second positioning supports is overlapped an end and is fixedly connected with the housing two ends respectively; Said contiguous block one end is fixedly connected with locked cylinder piston rod one end, and the said contiguous block other end and the stop pin other end rotatably flexibly connect.The stop pin at said piston rod two ends is set in the first positioning supports cover, second positioning supports cover.
The object of the invention can also further realize through following technical measures.
Aforesaid quick-change device for loader accessory; Wherein said contiguous block one end is provided with the fork head that is connected with locked cylinder piston rod one end; The contiguous block other end is provided with the T-slot that flexibly connects with the stop pin other end, and said fork head is fixedly connected through connecting pin with locked cylinder piston rod one end.The said stop pin other end is the ladder cylinder connecting portion that matches with the contiguous block T-slot.
Aforesaid quick-change device for loader accessory, wherein said locked cylinder cylinder body one end extends cylinder body radial location flange, locked cylinder piston rod one end extends piston rod radial location flange; Said cylinder body radial location flange both sides are shaped on a pair of first plane of orientation, and said piston rod radial location flange both sides are shaped on a pair of second plane of orientation.
Aforesaid quick-change device for loader accessory, wherein first positioning supports is overlapped an end, second positioning supports is overlapped an end and is respectively equipped with first installing plate, second installing plate that is fixedly connected with the housing two ends.Said first positioning supports cover other end also extends axially out a pair of limiting plate, and the cylinder body radial location flange of locked cylinder and piston rod radial location flange are inlaid in a pair of limiting plate inboard of first positioning supports cover respectively through a pair of first plane of orientation, a pair of second plane of orientation.
Compact conformation of the present invention, installation and maintenance are conveniently.Lock Part of the present invention all is installed in the housing; The stop pin at piston rod two ends is set in the first positioning supports cover, second positioning supports cover; When locking or release accessory; The stop pin outer peripheral face only contacts with the lock hole of accessory, is difficult for bringing into foreign material, has avoided the additional wear of stop pin.The cylinder body of locked cylinder one end of the present invention and piston rod are inlaid in a pair of limiting plate of first positioning supports cover, have limited the rotation of locked cylinder, make the locked cylinder piston rod not bear moment of torsion, have prolonged the application life of locked cylinder piston rod greatly; Simultaneously the position of locked cylinder tubing interface is remained unchanged, thereby make things convenient for installation, maintenance.The ladder cylinder connecting portion of stop pin of the present invention can rotate in the T-slot of contiguous block, makes stop pin to rotate with accessory, has reduced the wearing and tearing between stop pin and the accessory lock hole, has improved the reliability of Lock Part.
Advantage of the present invention and characteristics will illustrate through the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide with reference to accompanying drawing as an example.
Description of drawings
Fig. 1 locks the stereogram of accessory for the present invention;
Fig. 2 for Fig. 1 remove accessory stereogram;
Fig. 3 is internal construction assembling sketch map of the present invention;
Fig. 4 is the stereogram of the present invention's first positioning supports cover;
Fig. 5 is the stereogram of the present invention's second positioning supports cover;
Fig. 6 is the stereogram that locked cylinder of the present invention, contiguous block are connected with stop pin;
Fig. 7 is the stereogram of contiguous block of the present invention;
Fig. 8 is the enlarged front view of stop pin of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Like Fig. 1, Fig. 2 and shown in Figure 3; The present invention includes accessory coupling 2 and lift arm 3; One end of lift arm 3 is welded on the accessory coupling 2; Accessory coupling 2 comprises fixed part 23, Lock Part 21 and junction plate 22, and the upper and lower side of said junction plate 22 is connected with Lock Part 21 two ends with fixed part 23 respectively.Lock Part 21 comprises 215 and two contiguous blocks of housing 211, locked cylinder 212 and stop pin 213, first positioning supports cover 214, second positioning supports cover 216, two connecting pins 217, and extended termination 231, fixed part 23 two ends is stuck in the accessory 1 both sides hook 12.Locked cylinder 212, stop pin 213,215 and two contiguous blocks of first positioning supports cover, 214, second positioning supports cover 216, two connecting pins 217 are arranged in the housing 211; Locked cylinder 212 is a double rod cylinder; The piston rod two ends of locked cylinder 212 are fixedly connected with contiguous block 216 1 ends respectively; Contiguous block 216 other ends and stop pin 213 other ends rotatably flexibly connect, and stop pin 213 is set in first positioning supports cover, 214, second positioning supports cover 215.During locking accessory 1, stop pin 213 1 ends insert the lock hole 11 of accessory 1 both sides respectively under locked cylinder 212 effects.
Like Fig. 4, shown in Figure 5, first positioning supports is overlapped 214 1 ends and is radially extended first installing plate, 2141, the second positioning supports and overlap 215 1 ends and radially extend second installing plate, 2151, the first positioning supports and overlap 214 other ends and also extend axially out a pair of limiting plate 2142.As shown in Figure 3, first installing plate 2141, second installing plate 2151 are fixedly connected with housing 211 two ends respectively.
As shown in Figure 6, locked cylinder 212 cylinder bodies one end extends cylinder body radial location flange 218, locked cylinder 212 piston rods one end extends piston rod radial location flange 219; Cylinder body radial location flange 218 both sides are shaped on a pair of first plane of orientation 2181, and piston rod radial location flange 219 both sides are shaped on a pair of second plane of orientation 2191.As shown in Figure 3, the cylinder body radial location flange of locked cylinder 212 218 and piston rod radial location flange 219 are inlaid in a pair of limiting plate 2142 inboards of first positioning supports cover 214 respectively through a pair of first plane of orientation 2181, a pair of second plane of orientation 2191.Such syndeton has limited the rotation of locked cylinder 212; Make the piston rod of locked cylinder 212 not bear moment of torsion; Prolonged the application life of locked cylinder 212 piston rods, simultaneously the position of locked cylinder 212 tubing interfaces has been remained unchanged, easy to installation and maintenance.
As shown in Figure 7, contiguous block 216 1 ends are provided with the fork head 2162 that is connected with locked cylinder 212 piston rods one end, and contiguous block 216 other ends are provided with the T-slot 2163 that flexibly connects with stop pin 213 other ends, have on the fork head 2162 to connect pin-and-hole 2161.As shown in Figure 3, fork head 2162 is fixedly connected through connecting pin 217 with locked cylinder 212 piston rods one end.
As shown in Figure 8, stop pin 213 other ends are the ladder cylinder connecting portion 2131 that matches with contiguous block T-slot 2163.The ladder cylinder connecting portion 2131 of stop pin 213 can rotate in contiguous block T-slot 2163, makes stop pin 213 to rotate with accessory 1, has reduced the wearing and tearing between stop pin 213 and the accessory lock hole, has improved the reliability of Lock Part 21.
Except that the foregoing description, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (4)
1. quick-change device for loader accessory; Comprise accessory coupling (2) and lift arm (3); Said accessory coupling (2) is fixedly connected with lift arm (3); Said accessory coupling (2) comprises fixed part (23), Lock Part (21) and junction plate (22), and the upper and lower side of said junction plate (22) is connected with the two ends of fixed part (23) with Lock Part (21) respectively; Said Lock Part (21) comprises housing (211), locked cylinder (212) and stop pin (213), and said fixed part (23) two ends are connected with accessory (1) both sides hooks (12) respectively; Said locked cylinder (212), stop pin (213) are arranged in the housing (211), and said locked cylinder (212) is a double rod cylinder, and the piston rod two ends of locked cylinder (212) are connected with stop pin (213) respectively; During the locking accessory, said stop pin (213) one ends insert the lock hole (11) of accessory (1) both sides respectively under locked cylinder (212) effect; It is characterized in that said Lock Part (21) also comprises the first positioning supports cover (214), the second positioning supports cover (215) and two contiguous blocks (216) that are arranged in the housing (211); The first positioning supports cover (214) one ends, the second positioning supports cover (215) one ends are fixedly connected with housing (211) two ends respectively; Said contiguous block (216) one ends are fixedly connected with locked cylinder (212) piston rod one end; Said contiguous block (216) other end and stop pin (213) other end rotatably flexibly connect, and the stop pin (213) at said piston rod two ends is set in the first positioning supports cover (214), the second positioning supports cover (215); Said contiguous block (216) one ends are provided with the fork head (2162) that is connected with locked cylinder (212) piston rod one end; Contiguous block (216) other end is provided with the T-slot (2163) that flexibly connects with stop pin (213) other end, and said fork head (2162) is fixedly connected through connecting pin (217) with locked cylinder (212) piston rod one end; Said stop pin (213) other end is the ladder cylinder connecting portion (2131) that matches with contiguous block T-slot (2163).
2. quick-change device for loader accessory according to claim 1 is characterized in that said locked cylinder (212) cylinder body one end extends cylinder body radial location flange (218), locked cylinder (212) piston rod one end extends piston rod radial location flange (219); Said cylinder body radial location flange (218) both sides are shaped on a pair of first plane of orientation (2181), and said piston rod radial location flange (219) both sides are shaped on a pair of second plane of orientation (2191).
3. like the said quick-change device for loader accessory of claim 2; It is characterized in that the said first positioning supports cover (214) one ends radially extend first installing plate (2141); The said second positioning supports cover (215) one ends radially extend second installing plate (2151), and first installing plate (2141), second installing plate (2151) are fixedly connected with housing (211) two ends respectively.
4. like the said quick-change device for loader accessory of claim 3; It is characterized in that said first positioning supports cover (214) other end also extends axially out a pair of limiting plate (2142), the cylinder body radial location flange (218) of said locked cylinder (212) and piston rod radial location flange (219) are inlaid in a pair of limiting plate (2142) inboard of the first positioning supports cover (214) respectively through a pair of first plane of orientation (2181), a pair of second plane of orientation (2191).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102394550A CN101892682B (en) | 2010-07-28 | 2010-07-28 | Quick-change device for loader accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102394550A CN101892682B (en) | 2010-07-28 | 2010-07-28 | Quick-change device for loader accessory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101892682A CN101892682A (en) | 2010-11-24 |
| CN101892682B true CN101892682B (en) | 2012-01-04 |
Family
ID=43102016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102394550A Expired - Fee Related CN101892682B (en) | 2010-07-28 | 2010-07-28 | Quick-change device for loader accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101892682B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993621A (en) * | 2014-06-04 | 2014-08-20 | 济南华伟机械有限公司 | Multifunctional quick-replacing mechanism of working device of loader |
| CN105649127B (en) * | 2016-03-24 | 2018-06-12 | 徐工集团工程机械股份有限公司科技分公司 | A kind of quick change accessory bindiny mechanism |
| DE102019117715A1 (en) | 2018-06-29 | 2020-01-02 | Liebherr-Werk Bischofshofen Gmbh | working machine |
| CN111980085A (en) * | 2020-08-31 | 2020-11-24 | 合肥学院 | Conveniently-replaced digging shovel and loader-digger with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5692855A (en) * | 1994-06-21 | 1997-12-02 | Farmers' Factory Co. | Automatic quick-connect coupler for implements |
| EP1329559A2 (en) * | 2002-01-08 | 2003-07-23 | Thomas Sauer | Quick coupling device for work machines |
| RU2225481C1 (en) * | 2002-10-10 | 2004-03-10 | ОАО "Научно-исследовательский институт строительного и дорожного машиностроения" | Quick-release coupling of loaders working member |
| CN2880928Y (en) * | 2006-01-13 | 2007-03-21 | 山东临工工程机械有限公司 | Fast changing device for workpiece of loading machine |
| CN201288352Y (en) * | 2008-10-23 | 2009-08-12 | 郑州宇通重工有限公司 | Connection device capable of joining and disconnecting rapidly with quick change implement of loader |
| CN201738360U (en) * | 2010-07-28 | 2011-02-09 | 江苏柳工机械有限公司 | Loader accessory quick-replacement device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012038A1 (en) * | 1993-10-29 | 1995-05-04 | Ephemere Pty. Ltd. | Quick hitch assembly |
-
2010
- 2010-07-28 CN CN2010102394550A patent/CN101892682B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5692855A (en) * | 1994-06-21 | 1997-12-02 | Farmers' Factory Co. | Automatic quick-connect coupler for implements |
| EP1329559A2 (en) * | 2002-01-08 | 2003-07-23 | Thomas Sauer | Quick coupling device for work machines |
| RU2225481C1 (en) * | 2002-10-10 | 2004-03-10 | ОАО "Научно-исследовательский институт строительного и дорожного машиностроения" | Quick-release coupling of loaders working member |
| CN2880928Y (en) * | 2006-01-13 | 2007-03-21 | 山东临工工程机械有限公司 | Fast changing device for workpiece of loading machine |
| CN201288352Y (en) * | 2008-10-23 | 2009-08-12 | 郑州宇通重工有限公司 | Connection device capable of joining and disconnecting rapidly with quick change implement of loader |
| CN201738360U (en) * | 2010-07-28 | 2011-02-09 | 江苏柳工机械有限公司 | Loader accessory quick-replacement device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101892682A (en) | 2010-11-24 |
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Granted publication date: 20120104 Termination date: 20190728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |