CN203891095U - Novel quick change device - Google Patents
Novel quick change device Download PDFInfo
- Publication number
- CN203891095U CN203891095U CN201420202929.8U CN201420202929U CN203891095U CN 203891095 U CN203891095 U CN 203891095U CN 201420202929 U CN201420202929 U CN 201420202929U CN 203891095 U CN203891095 U CN 203891095U
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- CN
- China
- Prior art keywords
- connecting frame
- oil cylinder
- accessory
- latch segment
- hydraulic jack
- 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.)
- Expired - Lifetime
Links
- 239000003921 oil Substances 0.000 claims description 7
- 239000010729 system oil Substances 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 abstract 4
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Operation Control Of Excavators (AREA)
Abstract
The utility model discloses a novel quick change device. The novel quick change device comprises an upper connecting frame, a lower connecting frame and a safety locking device, wherein the upper connecting frame is provided with two pin shaft holes; the safety locking device comprises a locking block, sliding hooks and a hydraulic oil cylinder; the fixed end of the hydraulic oil cylinder is connected with the lower connecting frame through pin shafts, and the movable end of the hydraulic oil cylinder is connected with the sliding hooks; the locking block is connected with the lower connecting frame through the pin shafts; the sliding hooks are matched with guide rail grooves of the lower connecting frame through guide rails on both sides to drive the lower connecting frame to slide forwards and backwards; when the hydraulic oil cylinder retracts, the downward bosses on the tails of the sliding hooks are contacted with a boss on the locking block to drive the locking block to open. By adopting the quick change device, accessories can be replaced automatically and rapidly without requiring an operator to walk out of a driving cab, thereby lowering the labor intensity of the operator. Moreover, the function of a safety lock can be realized, thereby preventing safety accidents caused by accidental falling of accessories due to failure of a hydraulic system and enhancing the safety of the device.
Description
Technical field
The utility model relates to a kind of novel fast replacing device, belongs to engineering machinery field, relates in particular to a kind of quick-replaceable of excavator accessory.
Background technology
At present, along with the extensive use of engineering machinery, excavator no longer only carries out single digging operation, in order to adapt to different job requirements, need to change different work accessories, carries out multi-function operation.Replacing between excavator and accessory, traditional method is to pull down two bearing pins, changes required accessory, and then two bearing pins are loaded onto, and this kind of method bothers very much, and spended time is more, and also under the environment of inclement condition, operation inconvenience, operating efficiency is low.
Recently,, along with applying of fast replacing device, effectively promote the quick conversion between excavator and accessory.Existing fast replacing device mainly contains mechanical type and two kinds of structures of fluid pressure type, and the fast replacing device of mechanical structure, in the time changing accessory, need to be handled with manpower the mechanical mechanism of quick change; The fast replacing device of fluid pressure type structure can be changed accessory by the manipulation of hydraulic pressure, but in the time of the fast replacing device hydraulic system fails of fluid pressure type, accessory likely drops, and security incident easily occurs.
ZL200920088357.4 discloses the fast replacing device on a kind of excavator, and this device, in the time changing accessory, provides a kind of safety precautions, adopts and manually inserts mechanical braking pin shaft, prevents from occurring because of hydraulic system fails the case accident of accessory.But when changing when accessory, need operator to walk out driver's cabin, and remove mechanical braking bearing pin accessory is separated, this device is under environment rugged environment, and operation inconvenience, efficiency are low.
The fast replacing device of most does not have deflection, and excavator needs accessory under inclination attitude, to work under some special operating modes, and at this moment common quick change can not meet the demands at all.Application number is: 200910144688.X discloses a kind of universal quick connecting connector; this device adopts common hydraulic jack to drive upper and lower connector deflection, but this device does not have safety guard, in the time of hydraulic system fails; accessory likely drops, and security incident easily occurs.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of novel fast replacing device, it can fast automatic replacing accessory, do not need operator to walk out driver's cabin, reduce operator's labour intensity, and can also realize the function of safety lock, can prevent the security incident that accessory accidental is caused because of the inefficacy of hydraulic system, improve the safety of device.Meanwhile, it can also solve fast replacing device function singleness, and problem that can not deflection, improves operating efficiency greatly.
A kind of novel fast replacing device of the utility model, it comprises link, lower link, and upper link has two pin shaft holes, and it also comprises safe locking device, and safe locking device comprises latch segment, sliding hook, hydraulic jack; The fixed end of hydraulic jack is connected by bearing pin with lower link, and movable end is connected with sliding hook; Latch segment is connected with lower link by bearing pin, and sliding hook coordinates with the guide-track groove of lower link by the guide rail of both sides, can slide front and back; In the time that hydraulic jack shrinks, the boss of sliding hook tail down contacts with the boss on latch segment, thereby drives latch segment to open.
Wherein, hydraulic jack is integrated hydraulic control one-way valve, before and after it, chamber is connected with excavator hydraulic system oil circuit control by hydraulic hose.
This new device is in the time installing accessory, first stretch out by the joystick control hydraulic jack of driver's cabin, hydraulic jack stretches out and drives sliding hook to left movement, sliding hook moves to certain position, the boss of its afterbody contacts with the boss on the latch segment left side, force latch segment to open around bearing pin rotates counterclockwise, the lower link of now controlling fast replacing device entangles accessory right-hand member bearing pin; Shrink again hydraulic jack, drive latch segment closed clockwise to the right, block accessory right-hand member bearing pin; By the stretching out of hydraulic jack, sliding hook is moved left and block accessory left end bearing pin again, complete the replacing of accessory.As made accessory and fast replacing device depart from, only need be unloaded according to the anti-order that accessory is installed.
Therefore this novel can fast automatic replacing accessory, do not need operator to walk out driver's cabin, both reduced operator's working strength, save again the time that accessory is changed, improve operating efficiency, and can also realize the function of safe locking, can prevent the security incident that accessory accidental caused because of the inefficacy of hydraulic system, improve the safety of device.
Brief description of the drawings
Fig. 1 is the structural representation of this novel fast replacing device;
Fig. 2 is the schematic diagram that this novel fast replacing device latch segment opens;
Fig. 3 is the schematic diagram of this novel fast replacing device latch segment closure;
Fig. 4 is the work schematic diagram of this novel fast replacing device;
Fig. 5 is the assembling stereogram of sliding hook and latch segment in this novel fast replacing device;
Fig. 6 is the front view of Fig. 5.
specific implementation method
From above accompanying drawing, a kind of novel fast replacing device of the utility model, it comprises link 1, lower link 3, and upper link 1 has two pin shaft holes, and it also comprises safe locking device, and safe locking device comprises latch segment 4, sliding hook 5, hydraulic jack 6; Hydraulic jack 6 fixed ends are connected by bearing pin with lower link 3, and movable end is connected with sliding hook 5; Latch segment 4 is connected with lower link 3 by bearing pin, and sliding hook 5 coordinates with the guide-track groove of lower link 3 by the guide rail of both sides, can slide front and back; In the time that hydraulic jack 6 shrinks, the boss 9 of sliding hook 5 tail down contacts with the boss 10 on latch segment 4, thereby drives latch segment 4 to open.Two pin shaft holes wherein going up link 1 can be connected with the front end of working arm of excavating machine by bearing pin.
In this is novel, hydraulic jack 6 is integrated hydraulic control one-way valve, before and after it, chamber is connected with excavator hydraulic system oil circuit control by hydraulic hose.The driver's cabin of excavator is provided with joystick, by the break-make of joystick control hydraulic circuit, to realize the flexible of hydraulic jack 6, thereby makes the bayonet socket of sliding hook 5 block or unclamp the bearing pin of accessory device.In this novel fast replacing device, the hydraulic control one-way valve that hydraulic jack 6 is integrated can be realized the locking of hydraulic jack, due to the safeguard protection effect of latch segment 4, even the in the situation that of hydraulic system fails, also can block the bearing pin of accessory, in case there is case accident simultaneously.
As this novel a kind of improved procedure, this novel fast replacing device also comprises spiral oscillating oil cylinder 2, and spiral oscillating oil cylinder 2 is arranged between link 1 and lower link 3; The deflection angle of spiral oscillating oil cylinder 2 can reach ± and 90 °.This novel fast replacing device can be realized deflection by spiral oscillating oil cylinder 2, to meet in the operation that has a down dip of some special operating modes.
The utility model device is in the time installing accessory, first stretch out by the joystick control hydraulic jack 6 of driver's cabin, hydraulic jack 6 stretches out and drives sliding hook 5 to left movement, sliding hook 5 moves to certain position, the boss 9 of its afterbody contacts with the boss 10 on latch segment 4 left sides, force latch segment 4 to rotate counterclockwise and open around bearing pin, the lower link 3 of now controlling fast replacing device entangles accessory right-hand member bearing pin 7, as shown in Figure 2; Shrink again hydraulic jack 6, drive latch segment 4 closed clockwise to the right, block accessory right-hand member bearing pin 7, as shown in Figure 3; By the stretching out of hydraulic jack 6, sliding hook is moved left and block accessory left end bearing pin 8 again, complete the replacing of accessory, as shown in Figure 4.As made accessory and fast replacing device depart from, only need be unloaded according to the anti-order that accessory is installed, thereby be realized replacing equipment easily and fast, the operating efficiency while improving construction.The bearing pin center to center distance of the utility model quick change lower connecting plate is amplitude-variable, can adapt to the accessory of different bearing pin center to center distance.
The practicality of the utility model simplicity of design, the movement of the flexible drive sliding hook by hydraulic jack, the mobile latch segment that drives of sliding shoe has moved the replacing of accessory and unclamping and locking of latch segment.Therefore this novel fast replacing device is in the process of replacing accessory, operating personnel only need to be well placed accessory then operate hydraulic jack can fast automatic replacing accessory, in Renewal process, do not need to walk out driver's cabin, also without manually changing the parts such as any bearing pin, therefore reduced operator's labour intensity, save the time that accessory is changed, improve operating efficiency, and ensure the safety of whole device by safe locking device, can prevent the security incident that accessory accidental is caused because of the inefficacy of hydraulic system, improve the safety of device.Meanwhile, it can also solve fast replacing device function singleness, and problem that can not deflection, improves operating efficiency greatly.
Claims (3)
1. a novel fast replacing device, it comprises link (1), lower link (3), upper link (1) has two pin shaft holes, it is characterized in that: further comprising safe locking device, and safe locking device comprises latch segment (4), sliding hook (5), hydraulic jack (6); Hydraulic jack (6) fixed end is connected by bearing pin with lower link (3), and movable end is connected with sliding hook (5); Latch segment (4) is connected with lower link (3) by bearing pin, and sliding hook (5) coordinates with the guide-track groove of lower link (3) by the guide rail of both sides, can slide front and back; In the time that hydraulic jack (6) shrinks, the boss (9) of sliding hook (5) tail down contacts with the boss (10) on latch segment (4), thereby drives latch segment (4) to open.
2. the novel fast replacing device of one according to claim 1, is characterized in that: described hydraulic jack (6) is integrated hydraulic control one-way valve, before and after it, chamber is connected with excavator hydraulic system oil circuit control by hydraulic hose.
3. the novel fast replacing device of one according to claim 1, it is characterized in that: further comprising spiral oscillating oil cylinder (2), and spiral oscillating oil cylinder (2) is arranged between link (1) and lower link (3); The deflection angle of spiral oscillating oil cylinder (2) can reach ± and 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202929.8U CN203891095U (en) | 2014-04-24 | 2014-04-24 | Novel quick change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202929.8U CN203891095U (en) | 2014-04-24 | 2014-04-24 | Novel quick change device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203891095U true CN203891095U (en) | 2014-10-22 |
Family
ID=51717516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202929.8U Expired - Lifetime CN203891095U (en) | 2014-04-24 | 2014-04-24 | Novel quick change device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203891095U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947729A (en) * | 2015-06-30 | 2015-09-30 | 柳州柳工挖掘机有限公司 | Accessory connector with spacing and variable damping function |
| CN109555177A (en) * | 2019-01-25 | 2019-04-02 | 北京科技大学 | One kind is hydraulic to be switched fast docking platform automatically |
-
2014
- 2014-04-24 CN CN201420202929.8U patent/CN203891095U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947729A (en) * | 2015-06-30 | 2015-09-30 | 柳州柳工挖掘机有限公司 | Accessory connector with spacing and variable damping function |
| CN104947729B (en) * | 2015-06-30 | 2017-03-29 | 柳州柳工挖掘机有限公司 | With spacing and mutative damp function accessory adapter |
| CN109555177A (en) * | 2019-01-25 | 2019-04-02 | 北京科技大学 | One kind is hydraulic to be switched fast docking platform automatically |
| CN109555177B (en) * | 2019-01-25 | 2023-10-17 | 北京科技大学 | Automatic fast hydraulic switching docking platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |