CN111395431B - Quick switching device of wheeled multi-purpose machineshop car - Google Patents
Quick switching device of wheeled multi-purpose machineshop car Download PDFInfo
- Publication number
- CN111395431B CN111395431B CN202010212371.1A CN202010212371A CN111395431B CN 111395431 B CN111395431 B CN 111395431B CN 202010212371 A CN202010212371 A CN 202010212371A CN 111395431 B CN111395431 B CN 111395431B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- oil cylinder
- pin shaft
- round pin
- pin axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/961—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements with several digging elements or tools mounted on one machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Agricultural Machines (AREA)
Abstract
The invention provides a quick switching device of a wheel type multipurpose engineering vehicle, which comprises a bracket, an oil cylinder and a pin shaft for locking a working machine tool, wherein the oil cylinder is fixed on the bracket, a telescopic rod of the oil cylinder is connected with the pin shaft through a connecting rod structure, the telescopic of the pin shaft is controlled through the telescopic of the telescopic rod, and after the telescopic rod extends in place, the connecting rod structure forms a connecting rod dead point for preventing the pin shaft from returning. The invention provides a quick switching device of a wheel type multipurpose engineering vehicle, which is characterized in that after a pin shaft and a pin hole are pushed to be inserted in place by arranging an oil cylinder, a connecting rod dead point is formed, a stable support is formed, and the stability and the reliability of the connection of a working machine tool and a bracket are ensured.
Description
Technical Field
The invention belongs to the field of vehicle devices, and particularly relates to a quick-change mechanism for a wheel type multipurpose engineering vehicle.
Background
In the aspect of infrastructure, along with the rapid development of economy and more complicated and changeable construction environment, more and more requirements are provided for engineering vehicles, so that the engineering vehicles are required to meet the requirements of various different operation occasions, and a quick-change mechanism is usually arranged on the engineering vehicles to meet various construction requirements by changing loaded working machines.
Chinese patent publication No. CN 105649127 a provides a quick-change accessory connecting mechanism, which includes a connecting mechanism, a quick-change oil cylinder, a connecting pin, a fixing mechanism, and a limiting mechanism, wherein the quick-change oil cylinder is used for pushing the connecting pin to be inserted into an operating machine to achieve connection, but the hydraulic pushing direction of the oil cylinder is consistent with the moving direction of the connecting pin, so that the road surface jolts, the operating machine inevitably generates vibration, the vibration causes the connecting pin to roll back along the axial component force of the connecting pin, the oil cylinder is supported by the hydraulic pressure provided by the oil cylinder, the oil cylinder directly bears the rolling back force, when the load is heavy, the rolling back force is large, the hydraulic failure is easily caused, the operating machine falls off, and the threat to personnel or other equipment facilities is caused.
Disclosure of Invention
In order to solve the technical problems, the invention provides the quick switching device of the wheel type multipurpose engineering vehicle, which is characterized in that after the oil cylinder is arranged to push the pin shaft and the pin hole to be inserted and combined in place, a connecting rod dead point is formed, a stable support is formed, and the stability and the reliability of the connection of a working machine and a bracket are ensured.
The invention is realized by the following technical scheme:
the utility model provides a quick auto-change over device of wheeled multi-purpose machineshop car, be used for quick replacement work machines, which comprises a bracket, the hydro-cylinder with be used for locking the round pin axle of work machines, the hydro-cylinder is fixed on the bracket, the telescopic link of hydro-cylinder passes through the connecting rod structure and links to each other with the round pin axle, and the flexible control pin axle through the telescopic link is flexible, make work machines and bracket can be fixed with the dismantlement by the high-speed joint, realize the quick replacement of work machines, the telescopic link stretches out the back that targets in place, the connecting rod structure forms the connecting rod dead point that prevents that the round pin axle from returning, make the machineshop car operation in-process, when the work machines vibrate, the component that the telescopic link axial receives is minimum, avoid hydraulic pressure inefficacy, form.
The connecting block is fixed at the end part of a telescopic rod of the oil cylinder, the connecting block is hinged to the pin shaft through the connecting rod, the number of the connecting rods and the number of the pin shaft are two, the two connecting rods and the two pin shafts are symmetrically arranged on two sides of the connecting block, the connecting rods and the pin shaft form a connecting rod mechanism, the guide seat is horizontally arranged on two symmetrical rib plates of the bracket, a guide hole is formed in the center of the guide seat, and the guide hole of the pin shaft is inserted and closed. The invention has symmetrical structure and ensures the balance of stress after the pin shaft and the pin hole are inserted. Many working machines are in the change in-process, for convenient operation, often adjust one side round pin axle earlier and adjust one side round pin axle well with the pinhole well and insert and close, adjust opposite side round pin axle well with the pinhole well and insert and close again, but one side round pin axle is inserted with the pinhole and is closed the back, has unilateral hanging state, working machines are usually heavier, long-term operation makes the round pin axle warp easily, the easy strength of holding back when opposite side round pin axle and pinhole adjustment position simultaneously has increased the degree of difficulty that opposite side round pin axle and pinhole are adjusted well, two pairs of round pin axles and pinhole appear the disalignment easily, increase the wearing and. After the pin shafts on the two sides of the novel bearing are aligned with the pin holes, the pin shafts can be inserted and combined simultaneously, and abrasion of the shaft holes is reduced.
When the telescopic rod of the oil cylinder extends or contracts to the limit position, the pin shaft is always kept in an inserting state with the guide hole, the oil cylinder is guaranteed to stretch and contract, the pin shaft and the pin hole can be reliably controlled to be plugged and pulled out, and then the work tool and the bracket are connected, fixed and detached.
The oil cylinder is vertically fixed on the bracket, the telescopic rod extends downwards, a hook is arranged on the upper portion of a common working machine and hung on the upper portion of the bracket, the pin shaft is arranged on the lower portion of the bracket, the structural layout is reasonable, and the space is saved.
After the telescopic rod extends to the right position, the hinged positions of the two ends of the connecting block and the connecting rods and the hinged positions of the two connecting rods and the hinge pin are positioned on the same straight line, so that a connecting rod dead point is formed, a stable support is formed, and the stability and the reliability of connection of a working machine and the bracket are ensured.
The automatic pin shaft replacing device is characterized by further comprising a sensor and a sensing block, wherein the sensor is arranged on the bracket, the sensing block is arranged on a working machine, a pin hole matched with the pin shaft is formed in the working machine, when the sensor and the sensing block coincide, the pin hole is coaxial with the pin shaft, the oil cylinder stretches out of the telescopic rod, the pin shaft is pushed to be inserted into the pin hole, automatic control can be achieved, and replacing efficiency of the working machine is improved.
Further, inductor and response piece are provided with two sets ofly, and every inductor of group and response piece correspond a set of round pin axle and pinhole, and every inductor of group and response piece are provided with the pilot lamp that corresponds, and the pilot lamp is lighted when inductor and the coincidence of response piece that correspond. When the left pin shaft and the pin hole are coaxial, the left indicating lamp is on; when the right side round pin axle and pinhole are coaxial, the right side pilot lamp is bright, when making things convenient for personnel to adjust work machines position, judges the condition of adjusting well of both sides round pin axle and pinhole, has saved and has observed the operation inconvenience that the condition of adjusting well of round pin axle and pinhole from work machines both sides repeatedly and brought, has improved work efficiency.
Furthermore, when the two groups of inductors and the induction block are overlapped, the oil cylinder extends out of the telescopic rod to push the pin shaft to be inserted into the pin hole, so that after the pin shafts on two sides are aligned with the pin hole, the pin shafts on the two sides are inserted into the pin hole simultaneously, the stress is balanced, and the abrasion of the shaft hole is reduced.
Furthermore, before the telescopic link stretches out, need two sets of inductors and response piece to last to keep the certain time under the coincidence state, when adjustment work machines and tools are adjusting the position, two sets of inductors and the equal coincidence of response piece appear in the short time, but work machines and tools are still when rocking, and the round pin axle bumps when inserting with the pinhole, has the risk of wearing and tearing or warping, and the round pin axle is adjusted well and is inserted after stable with the pinhole and close again, further protects round pin axle and pinhole, has avoided the deformation risk, has reduced wearing and tearing.
The invention also provides a wheel type multipurpose engineering truck which comprises a quick-change mechanism.
The invention has the beneficial effects that:
compared with the prior art, a connecting rod mechanism is formed by arranging the connecting block, the connecting rod and the pin shaft, the oil cylinder is used as power to drive the pin shaft to move, and a connecting rod dead point is formed after the telescopic rod of the oil cylinder is pushed to extend in place, so that the component force applied to the telescopic rod in the axial direction is extremely small when a working machine tool vibrates in the operation process of the engineering truck, the hydraulic failure is avoided, the stable support is formed, and the stability and the reliability of the connection of the working machine tool and the bracket are ensured. After the pin shafts on the two sides of the novel bearing are aligned with the pin holes, the pin shafts can be inserted and combined simultaneously, and abrasion of the shaft holes is reduced. Through setting up inductor and response piece, can realize the automatic control that round pin axle and pinhole inserted and close, improve the change efficiency of work machines. Through setting up two sets of inductors and response piece and the pilot lamp that corresponds, when making things convenient for personnel to adjust work machines position, judge the condition of adjusting well of both sides round pin axle and pinhole, saved and observed the operation inconvenience that the condition brought well of round pin axle and pinhole from work machines both sides repeatedly, improved work efficiency. When the two groups of inductors and the induction blocks are overlapped, the oil cylinder extends out of the telescopic rod to push the pin shaft to be inserted into the pin hole, and after the pin shafts on the two sides and the pin hole are aligned, the pin shafts on the two sides and the pin hole are inserted into the pin hole simultaneously, the stress is balanced, and the abrasion of the shaft hole is reduced. Through setting up the duration holding time of two sets of inductors and response piece under the coincidence state, guarantee that round pin axle and pinhole are adjusted well and stable back and insert again and close, further protection round pin axle and pinhole have avoided the deformation risk, have reduced wearing and tearing.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic structural view of a work implement according to an embodiment of the present invention;
FIG. 4 is a schematic view of a work tool coupled to a quick-change mechanism according to an embodiment of the present invention;
FIG. 5 is a view in the direction A-A in FIG. 4;
FIG. 6 is a schematic structural diagram of a second embodiment of the present invention;
fig. 7 is an oblique view of fig. 6.
In the figure: 1-a working machine tool, 2-a bracket, 3-an oil cylinder, 4-a connecting block, 5-a connecting rod, 6-a pin shaft, 7-a guide seat, 8-a guide hole, 9-a telescopic rod, 10-a pin hole, 11-an inductor, 12-an induction block and 13-an indicator light.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Example one
As shown in fig. 1 to 5, a fast switching device of a wheel-type multipurpose engineering vehicle is used for fast replacing a working tool 1, the working tool 1 is of a plurality of types, a loading bucket is taken as an example in the drawing of the embodiment, the fast switching device comprises a bracket 2, an oil cylinder 3 and a pin 6 for locking the working tool 1, the oil cylinder 3 is fixed on the bracket 2, a telescopic rod 9 of the oil cylinder 3 is connected with the pin 6 through a connecting rod structure, and the telescopic rod 9 is used for controlling the extension and retraction of the pin 6 through the extension and retraction of the telescopic rod 9, so that the working tool 1 and the bracket 2 can be fast connected, fixed and detached, the fast replacement of the working tool 1 is realized, after the telescopic rod 9 is extended in place, the connecting rod structure forms a connecting rod dead point for preventing the pin 6 from retracting, and when the working tool 1 vibrates, the axial component force of the telescopic rod 9 is, form stable support, ensure the stability and the reliability that work machines 1 and bracket 2 are connected, use the hydro-cylinder as power simultaneously, can lay the basis for changing the automatic control of work machines.
The quick switching device further comprises a connecting block 4, a connecting rod 5 and a guide seat 7, the connecting block 4 is fixed at the end part of a telescopic rod 9 of the oil cylinder 3, the connecting block 4 is hinged to a pin shaft 6 through the connecting rod 5, the connecting rod 5 and the pin shaft 6 are in two numbers, the two connecting rods 5 and the two pin shafts 6 are symmetrically arranged on two sides of the connecting block 4, the connecting rod 5 and the pin shaft 6 form a connecting rod mechanism, the guide seat 7 is horizontally arranged on two symmetrical rib plates of the bracket 2, a guide hole 8 is formed in the center of the guide seat 7, and the guide hole 8 of the pin. The invention has symmetrical structure, and ensures the balance of stress after the pin shaft 6 and the pin hole 10 are inserted. Many working machines 1 are in the change in-process, for convenient operation, often adjust one side round pin axle 6 earlier and adjust that one side round pin axle is adjusted well with pinhole 10 and insert well, adjust opposite side round pin axle 6 again and insert well with pinhole 10 well, but one side round pin axle 6 inserts with pinhole 10 back, there is unilateral suspension state, working machines 1 is heavier usually, long-term operation makes round pin axle 6 warp easily, easy strength of holding back when opposite side round pin axle 6 and pinhole 10 adjustment position simultaneously, the degree of difficulty that opposite side round pin axle 6 and pinhole 10 were adjusted well has been increased, two pairs of round pin axles 6 and pinhole 10 appear the disalignment easily, increase the wearing and tearing when inserting and shutting. After the pin shafts 6 on the two sides of the invention are aligned with the pin holes 10, the pin shafts can be inserted and combined simultaneously, and the abrasion of the shaft holes is reduced.
When the telescopic rod 9 of the oil cylinder 3 extends or contracts to the limit position, the pin shaft 6 is always kept in an inserting state with the guide hole 8, the pin shaft 6 and the pin hole 10 can be reliably controlled to be inserted and pulled out by stretching of the oil cylinder 3, and then the work tool 1 and the bracket 2 are fixedly connected and detached.
The oil cylinder 3 is vertically fixed on the bracket, the telescopic rod 9 extends downwards, a hook is arranged on the upper portion of the common working machine 1 and hung on the upper portion of the bracket 2, the pin shaft 6 is arranged on the lower portion of the bracket 2, the structural layout is reasonable, and the space is saved.
After the telescopic rod 9 extends to the right position, the hinged positions of the two ends of the connecting block 4 and the connecting rod 5 and the hinged positions of the two connecting rods 5 and the pin shaft 6 are positioned on the same straight line to form a connecting rod dead point, so that stable support is formed, and the stability and the reliability of connection of the working machine 1 and the bracket 2 are ensured.
Example two
As shown in fig. 6 and 7, on the basis of the structure of the first embodiment, the following improvements are made:
the quick switching device further comprises an inductor 11 and an induction block 12, wherein the inductor 11 is arranged on the bracket 2, the induction block 12 is arranged on the working machine 1, a pin hole 10 matched with the pin shaft 6 is formed in the working machine 1, when the inductor 11 and the induction block 12 are overlapped, the pin hole 10 is coaxial with the pin shaft 6, the oil cylinder 3 extends out of the telescopic rod 9, the pin shaft 6 is pushed to be inserted into the pin hole 10, automatic control can be achieved, and the replacement efficiency of the working machine 1 is improved.
When two sets of inductors 11 and response piece 12 all coincide, hydro-cylinder 3 could stretch out telescopic link 9, promotes round pin axle 6 and pinhole 10 and inserts and close, guarantees that both sides round pin axle 6 and pinhole 10 are all adjusted well the back, inserts simultaneously and closes, and the atress is balanced, has reduced the shaft hole wearing and tearing, can also realize selling the automatic control that axle 6 and pinhole 10 inserted and close.
Before the telescopic link 9 stretches out, need two sets of inductors 11 and response piece 12 to last to keep the certain time under the coincidence state, when adjustment work machines 1 is adjusting the position, two sets of inductors 11 appear in the short time and respond to the equal coincidence of piece 12, but the work machines are still when rocking, the round pin axle 6 bumps when inserting with pinhole 10 and closes, there is the risk of wearing and tearing or deformation, round pin axle 6 aligns and inserts after stable again with pinhole 10, further protection round pin axle 6 and pinhole 10, deformation risk has been avoided, wear and tear has been reduced.
The invention also provides a wheel type multipurpose engineering truck which comprises a quick-change mechanism.
According to the rapid switching device for the wheel type multipurpose engineering vehicle, the connecting rod mechanism is formed by arranging the connecting block, the connecting rod and the pin shaft, the oil cylinder is used as power to drive the pin shaft to move, and the connecting rod dead point is formed after the telescopic rod of the oil cylinder pushes and extends in place, so that the axial component force of the telescopic rod is extremely small when a working machine tool vibrates in the operation process of the engineering vehicle, hydraulic failure is avoided, stable support is formed, and the stability and reliability of connection of the working machine tool and the bracket are ensured. After the pin shafts on the two sides of the novel bearing are aligned with the pin holes, the pin shafts can be inserted and combined simultaneously, and abrasion of the shaft holes is reduced. Through setting up inductor and response piece, can realize the automatic control that round pin axle and pinhole inserted and close, improve the change efficiency of work machines. Through setting up two sets of inductors and response piece and the pilot lamp that corresponds, when making things convenient for personnel to adjust work machines position, judge the condition of adjusting well of both sides round pin axle and pinhole, saved and observed the operation inconvenience that the condition brought well of round pin axle and pinhole from work machines both sides repeatedly, improved work efficiency. When two sets of inductors and response piece all coincide, the hydro-cylinder stretches out the telescopic link, promotes round pin axle and pinhole and inserts and close, guarantees both sides round pin axle and pinhole and all adjusts the back well, inserts simultaneously and closes, and the atress is balanced, has reduced the shaft hole wearing and tearing, can also realize round pin axle and pinhole and insert the automated control who closes. Through setting up the duration holding time of two sets of inductors and response piece under the coincidence state, guarantee that round pin axle and pinhole are adjusted well and stable back and insert again and close, further protection round pin axle and pinhole have avoided the deformation risk, have reduced wearing and tearing.
Claims (9)
1. A quick switching device of wheeled multi-purpose machineshop car for quick replacement working machine (1), its characterized in that: comprises a bracket (2), an oil cylinder (3) and a pin shaft (6) used for locking a working machine tool (1), wherein the oil cylinder (3) is fixed on the bracket (2), a telescopic rod (9) of the oil cylinder (3) is connected with the pin shaft (6) through a connecting rod structure and controls the extension of the pin shaft (6) through the extension of the telescopic rod (9), and after the telescopic rod (9) extends to a proper position, the connecting rod structure forms a connecting rod dead point for preventing the pin shaft (6) from returning,
still include connecting block (4), connecting rod (5) and guide holder (7), telescopic link (9) tip at hydro-cylinder (3) is fixed in connecting block (4), connecting block (4) are articulated through connecting rod (5) with round pin axle (6), connecting rod (5) and round pin axle (6) quantity are two, two connecting rod (5) and two round pin axle (6) set up in connecting block (4) both sides symmetrically, connecting block (4), connecting rod (5) and round pin axle (6) form link mechanism, guide holder (7) level sets up on the floor of two symmetries of bracket (2), guide holder (7) center is opened there are guiding hole (8), round pin axle (6) guiding hole (8) are inserted and are closed.
2. The quick switching apparatus of a wheeled multipurpose working vehicle as claimed in claim 1, wherein: when the telescopic rod (9) of the oil cylinder (3) extends out or contracts to the limit position, the pin shaft (6) is always kept in an inserting state with the guide hole (8).
3. The quick switching apparatus of a wheeled multipurpose working vehicle as claimed in claim 1, wherein: the oil cylinder (3) is vertically fixed on the bracket, and the telescopic rod (9) extends downwards.
4. The quick switching apparatus of a wheeled multipurpose working vehicle as claimed in claim 1, wherein: after the telescopic rod (9) extends to the right position, the hinged positions of the two ends of the connecting block (4) and the connecting rods (5) and the hinged positions of the two connecting rods (5) and the pin shaft (6) are positioned on the same straight line to form a connecting rod dead point.
5. The quick switching apparatus of a wheeled multipurpose working vehicle as claimed in claim 1, wherein: still include inductor (11) and response piece (12), inductor (11) set up on bracket (2), response piece (12) set up on work machines (1), be provided with on work machines (1) with round pin axle (6) complex pinhole (10), inductor (11) and response piece (12) coincide, pinhole (10) are coaxial with round pin axle (6), telescopic link (9) are stretched out in hydro-cylinder (3), promote round pin axle (6) and peg graft with pinhole (10) and close.
6. The quick switching device of the wheeled multipurpose working vehicle as claimed in claim 5, wherein: inductor (11) and response piece (12) are provided with two sets ofly, and every group inductor (11) and response piece (12) correspond a set of round pin axle (6) and pinhole (10), and every group inductor (11) and response piece (12) are provided with corresponding pilot lamp (13), and pilot lamp (13) light when inductor (11) and the response piece (12) coincidence that correspond.
7. The quick switching device of the wheeled multipurpose working vehicle as claimed in claim 6, wherein: when the two groups of inductors (11) and the induction block (12) are overlapped, the oil cylinder (3) can extend out of the telescopic rod (9) to push the pin shaft (6) to be inserted into the pin hole (10).
8. The quick switching apparatus of a wheeled multipurpose working vehicle as claimed in claim 7, wherein: before the telescopic rod (9) extends out, two groups of inductors (11) and induction blocks (12) are required to be kept for a certain time in a superposition state.
9. The utility model provides a multi-purpose machineshop car of wheeled which characterized in that: comprising a fast switching device according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010212371.1A CN111395431B (en) | 2020-03-24 | 2020-03-24 | Quick switching device of wheeled multi-purpose machineshop car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010212371.1A CN111395431B (en) | 2020-03-24 | 2020-03-24 | Quick switching device of wheeled multi-purpose machineshop car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111395431A CN111395431A (en) | 2020-07-10 |
| CN111395431B true CN111395431B (en) | 2020-12-08 |
Family
ID=71432892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010212371.1A Active CN111395431B (en) | 2020-03-24 | 2020-03-24 | Quick switching device of wheeled multi-purpose machineshop car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111395431B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112854328B (en) * | 2021-04-26 | 2021-07-13 | 徐州徐工挖掘机械有限公司 | Hydraulic drive's excavator accessory quick connector and excavator |
| CN115072161B (en) * | 2022-07-11 | 2023-06-23 | 北京航天发射技术研究所 | Space turnover type box cover |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8308092B2 (en) * | 1999-10-15 | 2012-11-13 | Ramun John R | Multiple tool attachment system with universal body with grapple |
| JP4885935B2 (en) * | 2008-12-12 | 2012-02-29 | ヤンマー株式会社 | Attachment drop-off prevention structure for turning work vehicles |
| CN201762744U (en) * | 2010-08-25 | 2011-03-16 | 江苏柳工机械有限公司 | Quick-change device for accessories on skid steer loader |
| CN201817834U (en) * | 2010-09-06 | 2011-05-04 | 江苏柳工机械有限公司 | Quick change device for loader accessories |
| CN109577405B (en) * | 2018-12-11 | 2024-04-16 | 徐州徐工特种工程机械有限公司 | Hydraulic quick-change mechanism for accessory |
-
2020
- 2020-03-24 CN CN202010212371.1A patent/CN111395431B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111395431A (en) | 2020-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111395431B (en) | Quick switching device of wheeled multi-purpose machineshop car | |
| CN102471043B (en) | Load-compensation device | |
| CN102002936B (en) | Dynamic compactor capable of realizing amplitude-variable followup of A-bracket with arm support | |
| CN205382894U (en) | Four connecting rods pipe pole conveyer | |
| CN102364010B (en) | Wheel type cloth machinery | |
| CN106904526B (en) | The adjustable General balance beam suspender of one kind lifting span and its application method | |
| CN101955133B (en) | Movable crane | |
| CN101357743B (en) | Crane hook magnification-changing mechanism of movable arm variation-amplitude crane | |
| CN102659041B (en) | Engineering machinery | |
| CN206509466U (en) | Lifting mechanism of buffer device centralized forging manipulator | |
| CN206814339U (en) | A kind of 4 leveling hydraulic pressure scissors fork elevating rail track inspection platforms | |
| CN209264302U (en) | A kind of counterweight automation switching mechanism for drawing machine testing | |
| CN201190296Y (en) | Bucket fork quick change apparatus for loader | |
| CN116395559A (en) | Hydraulic adjustment general lifting appliance | |
| CN110271954A (en) | Hoisting system and engineering machinery | |
| CN102312456A (en) | Quick-change device | |
| CN205223811U (en) | Heater turning device that bituminous paving cared car | |
| CN211102510U (en) | Rear overhang assembly jacking equipment | |
| CN208120540U (en) | Tunnel construction trestle hoisting mechanism | |
| CN203159081U (en) | A truss jib crane and a getting-off structure thereof | |
| CN110526138A (en) | A kind of amplitude variation type erecting crane | |
| CN204904706U (en) | Automobile engine dismouting roll -over stand | |
| CN109837368A (en) | Device and method is used in a kind of replacement of radiant tube | |
| CN202609827U (en) | Engineering machinery | |
| CN102351130A (en) | Crawler crane and counterweight supporting device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |