CN201907957U - Double oil cylinder telescopic arm forklift loader - Google Patents
Double oil cylinder telescopic arm forklift loader Download PDFInfo
- Publication number
- CN201907957U CN201907957U CN2010206361301U CN201020636130U CN201907957U CN 201907957 U CN201907957 U CN 201907957U CN 2010206361301 U CN2010206361301 U CN 2010206361301U CN 201020636130 U CN201020636130 U CN 201020636130U CN 201907957 U CN201907957 U CN 201907957U
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- Prior art keywords
- oil cylinder
- arm
- semi
- telescopic
- telescopic arm
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- 239000002360 explosive Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 abstract description 72
- 230000007246 mechanism Effects 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 239000010720 hydraulic oil Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000002457 bidirectional effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a double oil cylinder telescopic arm forklift loader which comprises a working arm, a telescopic arm oil cylinder 1 and a telescopic arm oil cylinder 2, wherein the working arm is provided with a first arm, a second arm and a third arm; the telescopic arm oil cylinder 1 is arranged outside the working arm in a positive installation mode; one end of the telescopic arm oil cylinder 1 is connected with the first arm through a pin shaft 1, and the other end of the telescopic arm oil cylinder 1 is connected with the second arm through a pin shaft 2; the telescopic arm oil cylinder 2 is arranged inside a cylinder body of the working arm in an inverted mode; and one end of the telescopic arm oil cylinder 2 is connected with the second arm through a pin shaft 3, and the other end of the telescopic arm oil cylinder 2 is connected with the third arm through a pin shaft 4. In the utility model, the telescopic arm oil cylinder 1 is connected with the first arm and the second arm, the telescopic arm oil cylinder 2 is connected with the second arm and the third arm, and two double-acting oil cylinders are utilized to push the working arm to realize extension and retraction. The double oil cylinder telescopic arm forklift loader is suitable for a forklift loader working arm system with three sections of telescopic arms. Hydraulic oil has incompressibility, and thus, a double-cylinder synchronous telescopic mechanism has higher rigidity than a single-cylinder steel wire rope or chain telescopic mechanism, and the requirements of the telescopic arm forklift loader for carrying out stonework operation can be well met.
Description
Technical field
The utility model relates to a kind of telescopic arm forklift truck, particularly relates to a kind of pair of oil cylinder telescopic arm forklift truck.
Background technology
At present, the more piece working arm of telescopic arm forklift truck flexible mostly is utilization movable pulley principle, promptly adopts an oil cylinder drive steel rope or the chain telescoping mechanism arm that pushes the work forward to make synchronization telescope.Though utilize the synchronization telescope mechanism of this principle design can reach the purpose of change work brachium, but owing in the mechanism steel rope or chain are arranged, there is certain flexibility all the time in it, simultaneously the working arm band size of carrying flexible thrust depends on the rupture pull force of steel rope and chain, and the needs telescopic boom keeps the operation operating mode of better rigidity in the time of can not finely satisfying telescopic arm forklift truck and make loader and use.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly keeps better rigidity to adapt to two oil cylinder telescopic arm forklift trucks of cubic meter loading operation can make telescopic boom flexible the time.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of pair of oil cylinder telescopic arm forklift truck, comprise the working arm that has a joint arm, two joint arms and three joint arms, also comprise semi-girder oil cylinder one and semi-girder oil cylinder two, wherein semi-girder oil cylinder one is installed in the working arm outside in the mode of putting just, one end is connected with a joint arm by bearing pin one, the other end is connected with two joint arms by bearing pin two, semi-girder oil cylinder two is installed in the working arm inner barrel with upside down, one end is connected with two joint arms by bearing pin three, and the other end is connected with three joint arms by bearing pin four.
As preferably, the front end outer setting of a described joint arm has the fixedly clips of semi-girder oil cylinder one.
As preferably, the rodless cavity of the rod chamber of described semi-girder oil cylinder one and semi-girder oil cylinder two is by the flexible pipe series connection and have identical working area.
As preferably, the inflow point of the rodless cavity of described semi-girder oil cylinder two is provided with the anti-explosive valve of pipeline.
The two oil cylinder telescopic arm forklift trucks of the utility model, semi-girder oil cylinder one is connected with two joint arms with a joint arm, semi-girder oil cylinder two is connected with three joint arms with two joint arms, utilize two two-way cylinders arm that pushes the work forward to realize flexible, be applicable to forklift truck working arm system with three joint telescopic booms, because hydraulic oil has incompressibility, therefore twin-tub synchronization telescope mechanism has better rigidity than the telescoping mechanism that single cylinder adds steel rope or chain type, can better satisfy the needs that telescopic arm forklift truck carries out cubic meter operation.
The two oil cylinder telescopic arm forklift trucks of the utility model, the rod chamber of semi-girder oil cylinder one and the rodless cavity of semi-girder oil cylinder two are connected by flexible pipe, and be designed to have identical working area, make it can adopt same hydraulic control system that it is controlled, no matter adopt manually, hydraulic control or automatically controlledly all can realize synchronization telescope, simple and reliable, need speed sensor when having removed the employing parallel way from, and need the automatically controlled mode of utilization just can reach the somewhat complex design of synchronization telescope.
In sum, the two oil cylinder telescopic arm forklift trucks of the utility model, structure design is simple, the technique effect that can make the working arm of telescopic arm forklift truck reach synchronization telescope and have good rigidity.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of the two oil cylinder telescopic arm forklift trucks of the utility model.
Fig. 2 is the fluid control schematic diagram of the two oil cylinder telescopic arm forklift trucks of the utility model.
Wherein, Reference numeral: 1 is a joint arm, and 2 is two joint arms, 3 is three joint arms, and 4 is that semi-girder oil cylinder one, 5 is a semi-girder oil cylinder two, 6 is that bearing pin one, 7 is that bearing pin two, 8 is a bearing pin three, 9 is bearing pin four, 10 is clips, and 11 are the anti-explosive valve of pipeline, and 12 is change-over valve, 13 is bidirectional balanced valve, and 14 is safety overflow valve.
The specific embodiment
Disclosed all features in this specification sheets, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification sheets (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As depicted in figs. 1 and 2, the two oil cylinder telescopic arm forklift trucks of the utility model, comprise and have a joint arm 1, the working arm of two joint arms 2 and three joint arms 3, also comprise semi-girder oil cylinder 1 and semi-girder oil cylinder 25, wherein a joint arm 1 is at outermost layer, three joint arms 3 are at innermost layer, semi-girder oil cylinder 1 is installed in the working arm outside in the mode of putting just, one end is connected with a joint arm 1 by bearing pin 1, the other end is connected with two joint arms 2 by bearing pin 27, semi-girder oil cylinder 25 is installed in the working arm inner barrel with upside down, and an end is connected with two joint arms 2 by bearing pin 38, and the other end is connected with three joint arms 3 by bearing pin 49.The front end outer setting of one joint arm 1 has the fixedly clips 10 of semi-girder oil cylinder 1, in order to the fixing cylinder barrel of semi-girder oil cylinder 1, carries the amount of fluctuating when stretching to limit its band, increases its stand under load stability.The rodless cavity of the rod chamber of semi-girder oil cylinder 1 and semi-girder oil cylinder 25 is by the flexible pipe series connection and have identical working area.The inflow point of the rodless cavity of semi-girder oil cylinder 25 is provided with the anti-explosive valve 11 of pipeline, produces retraction with semi-girder oil cylinder 25 after preventing the pipeline explosion, plays the safety guard-safeguard effect.
As depicted in figs. 1 and 2, the two oil cylinder telescopic arm forklift trucks of the utility model, two oil cylinders adopt hydraulic control circuit to carry out extension and contraction control, are provided with change-over valve 12, bidirectional balanced valve 13, safety overflow valve 14, the anti-explosive valve 11 of pipeline in the loop.During work, by change-over valve 12 delivery pressure oil sources, promote semi-girder oil cylinder 1 and semi-girder oil cylinder 25 and stretch, change-over valve 12 can be manually control commutation, also can be that hydraulic control or automatically controlled mode realize commutation, adopts the hydraulic control control that commutates in the present embodiment; Safety overflow valve 14 in parallel in the loop is in safe range in order to the limit circuit operation pressure; The effect of series connected bidirectional balanced valve 13 is to guarantee all can keep not being subjected to gravity effect of load when no matter working arm is in the positive elevation angle and the negative elevation angle and to glide.
As depicted in figs. 1 and 2, the two oil cylinder telescopic arm forklift trucks of the utility model, when a of pilot operated directional control valve 12 mouth controlled, change-over valve 12 enters the work of position, a left side, pressure oil is from the A mouth output of change-over valve 12, enter the rodless cavity of semi-girder oil cylinder 1 through bidirectional balanced valve V1 and C1, it is protruding to promote semi-girder oil cylinder 1, and drives two joint arms 2 and outwards produce and stretch out motion; Simultaneously, the rod chamber of semi-girder oil cylinder 1 is discharged the rodless cavity that fluid enters semi-girder oil cylinder 25, because the rodless cavity of the rod chamber of semi-girder oil cylinder 1 and semi-girder oil cylinder 25 has an identical working area, therefore, semi-girder oil cylinder 25 is just protruding with the kinematic velocity identical with semi-girder oil cylinder 1, and it is also protruding with the speed consistent with two joint arms 2 to drive three joint arms 3 thus.When the b of pilot operated directional control valve 12 mouth controlled, change-over valve 12 enters the work of right position, and pressure oil is from the B mouth output of change-over valve 12, enters the rod chamber of semi-girder oil cylinder 25 through bidirectional balanced valve V2 and C2, promote inwardly retraction of semi-girder oil cylinder 25, and drive three inwardly generation retracting motions of joint arms 3; Simultaneously, the rodless cavity of semi-girder oil cylinder 25 is discharged the rod chamber that fluid enters semi-girder oil cylinder 1, because the rodless cavity of the rod chamber of semi-girder oil cylinder 1 and semi-girder oil cylinder 25 has an identical working area, therefore semi-girder oil cylinder 1 just inwardly bounces back with the kinematic velocity identical with semi-girder oil cylinder 25, drives two joint arms 2 thus to save the consistent speed of arm 3 and inwardly bounce back with three.Thus, the motion of twin-tub synchronization telescope is achieved.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. two oil cylinder telescopic arm forklift truck, comprise and have a joint arm (1), the working arm of two joint arms (2) and three joint arms (3), it is characterized in that: also comprise semi-girder oil cylinder one (4) and semi-girder oil cylinder two (5), wherein semi-girder oil cylinder one (4) is installed in the working arm outside in the mode of putting just, one end is connected with a joint arm (1) by bearing pin one (6), the other end is connected with two joint arms (2) by bearing pin two (7), semi-girder oil cylinder two (5) is installed in the working arm inner barrel with upside down, one end is connected with two joint arms (2) by bearing pin three (8), and the other end is connected with three joint arms (3) by bearing pin four (9).
2. according to claim 1 pair of oil cylinder telescopic arm forklift truck is characterized in that: the front end outer setting of a described joint arm (1) has the fixedly clips (10) of semi-girder oil cylinder one (4).
3. according to claim 1 pair of oil cylinder telescopic arm forklift truck is characterized in that: the rodless cavity of the rod chamber of described semi-girder oil cylinder one (4) and semi-girder oil cylinder two (5) is by the flexible pipe series connection and have identical working area.
4. according to claim 3 pair of oil cylinder telescopic arm forklift truck is characterized in that: the inflow point of the rodless cavity of described semi-girder oil cylinder two (5) is provided with the anti-explosive valve (11) of pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206361301U CN201907957U (en) | 2010-12-01 | 2010-12-01 | Double oil cylinder telescopic arm forklift loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206361301U CN201907957U (en) | 2010-12-01 | 2010-12-01 | Double oil cylinder telescopic arm forklift loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201907957U true CN201907957U (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206361301U Expired - Fee Related CN201907957U (en) | 2010-12-01 | 2010-12-01 | Double oil cylinder telescopic arm forklift loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201907957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587489A (en) * | 2012-03-27 | 2012-07-18 | 湖南奇思环保有限公司 | Shaft dredging grab bucket truck |
| CN109748216B (en) * | 2019-03-19 | 2023-08-18 | 威海怡和专用设备制造有限公司 | Vehicle-mounted hydraulic lifting mechanism |
-
2010
- 2010-12-01 CN CN2010206361301U patent/CN201907957U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587489A (en) * | 2012-03-27 | 2012-07-18 | 湖南奇思环保有限公司 | Shaft dredging grab bucket truck |
| CN102587489B (en) * | 2012-03-27 | 2014-01-22 | 湖南奇思环保有限公司 | Shaft dredging grab bucket truck |
| CN109748216B (en) * | 2019-03-19 | 2023-08-18 | 威海怡和专用设备制造有限公司 | Vehicle-mounted hydraulic lifting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20131201 |