CN201220894Y - Cylinder type telescoping mechanism for truck crane - Google Patents
Cylinder type telescoping mechanism for truck crane Download PDFInfo
- Publication number
- CN201220894Y CN201220894Y CNU2008200237197U CN200820023719U CN201220894Y CN 201220894 Y CN201220894 Y CN 201220894Y CN U2008200237197 U CNU2008200237197 U CN U2008200237197U CN 200820023719 U CN200820023719 U CN 200820023719U CN 201220894 Y CN201220894 Y CN 201220894Y
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- joint
- cylinder
- sleeve
- oil tank
- arm
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- Expired - Fee Related
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Abstract
The utility model relates to a sleeve cylinder type retractable telescopic arm for a truck crane. The telescopic arm comprises a retractable multi-joint arm, a retractable multi-joint cylinder, a connecting cylinder, a connector of the arm and a lifting device (6). The multi-joint cylinder is arranged in the multi-joint arm; both the multi-joint arm and the multi-joint cylinder are sleeve type; the multi-joint cylinder is arranged in the multi-joint arm in a reverse manner; each cylinder sleeve of the multi-joint cylinder is fixedly connected with one corresponding arm sleeve in the multi-joint arm through the connector; an innermost cylinder sleeve (2-1) is provided with an oil hole (10) communicated with a hydraulic device; and the steel wire rope of the lifting device (6) arranged on the truck crane extends into the multi-joint arm, and is connected with the innermost arm sleeve. The telescopic arm has the advantages of the random increase of designed collapsing length, simple structure, no addition of auxiliary arm, safe and reliable use, convenient maintenance, convenient manufacture, low cost and the like.
Description
One, technical field:
The utility model relates to the telescopic boom that a kind of car hosit stretches with double-cylinder type.
Two, background technology:
The telescopic boom of car hosit is of a great variety, and particularly single oil cylinder also differs from one another.But it is loaded down with trivial details that present telescopic boom manufactures and designs, because complex structure, parts are many, the needs that have increase auxiliary, manufacturing cost height, maintenance difficult, with regard to present structure design principle, the flexible distance of telescopic boom is restricted (being that hoisting height is restricted), and every increase by one joint telescopic boom is all very difficult, need to be equipped with a lot of parts, could realize, give to manufacture and design and bring very big difficulty, and fault rate also increases greatly.Though the structure that has is comparatively simple, need artificial assisting during operation, be absolutely unsafe, also easily error, work efficiency is not high, uses inconvenient yet.Thereby the use of car hosit is restricted.
Three, summary of the invention
The purpose of this utility model is that it can arbitrarily increase the design collapsing length, and is simple in structure, need not increase auxiliary for car hosit provides a kind of double-cylinder type flexible telescopic boom, and safe and reliable, easy to maintenance, easily manufactured, cost is low.
For achieving the above object, the technical scheme that the utility model is taked is: include telescopic single oil cylinder, telescopic multiple-joint oil tank, the adaptor union that connects cylinder and arm, winding plant etc., multiple-joint oil tank is arranged in the single oil cylinder, and every joint cylinder of multiple-joint oil tank is captiveed joint with a corresponding joint arm in the single oil cylinder by adaptor union.Described single oil cylinder is a sleeve type, is promptly formed by a plurality of arm cover suits.Described multiple-joint oil tank also is a sleeve type, is promptly formed by a plurality of cylinder sleeve suits.Multiple-joint oil tank is " flip-over type " and is arranged in the single oil cylinder, and promptly the interior joint cylinder sleeve of multiple-joint oil tank is arranged on the interior place of outermost one joint arm cover of single oil cylinder.Every joint cylinder sleeve is captiveed joint with corresponding arm cover by adaptor union.The interior joint cylinder sleeve of multiple-joint oil tank is provided with the oilhole that is communicated with hydraulic efficiency gear, and multiple-joint oil tank is communicated with the hydraulic efficiency gear of car hosit by its oilhole.Winding plant is arranged on the car hosit, and the steel rope of winding plant puts in the single oil cylinder and is connected with the interior joint arm cover of single oil cylinder.
For the sealing property that improves multiple-joint oil tank and the guiding stability when flexible, be provided with the sealing orienting sleeve at an end of cylinder sleeve, between the acromere cylinder sleeve that the sealing orienting sleeve matches with it, be provided with oil sealing.
When needs extend, handle the hydraulic efficiency gear of car hosit, hydraulic oil enters multiple-joint oil tank by the oilhole of multiple-joint oil tank, makes the multiple-joint oil tank elongation, and multiple-joint oil tank drives the single oil cylinder elongation by adaptor union.When needs shrink, operation winding plant and hydraulic efficiency gear make the hydraulic oil in the multiple-joint oil tank be back to hydraulic efficiency gear, drop the interior joint arm cover by winding plant by steel rope, under the effect of hydraulic efficiency gear and winding plant, whole single oil cylinder and multiple-joint oil tank are shunk together.
Be arranged in the single oil cylinder because the utility model is multiple-joint oil tank to be inverted, the cylinder sleeve of its front end (it is preceding stretching out direction) is outmost cylinder sleeve, also is the cylinder sleeve of diameter maximum, has increased hoisting force like this.In addition, because multiple-joint oil tank is to be inverted, after the multiple-joint oil tank elongation, it is the thinnest (being innermost layer), and cylinder sleeve is connected with the thickest (promptly outermost) arm cover, and outermost cylinder sleeve is connected with the arm cover of innermost layer, the centre is respectively saved cylinder sleeve and is connected with corresponding arm cover, and its resistance to bending has obtained reinforcement, has improved the bending strength of whole telescopic boom and the warp resistance ability of multiple-joint oil tank effectively.Single oil cylinder and more piece cylinder can arbitrarily design according to the needs of collapsing length.In addition, the utility model (being arm) has only multiple-joint oil tank, steel cable and a multiple-joint oil tank to be connected the adaptor union of usefulness with single oil cylinder in single oil cylinder, and it is simple in structure, and the operating troubles rate is low, makes easy to maintenancely, and cost is low.And do not need the auxilian during operation, safe in utilization.Characteristics such as therefore, the utlity model has arbitrarily to increase the design collapsing length, simple in structure, need not increase auxiliary, safe and reliable, easy to maintenance, easily manufactured, and cost is low.
Four, description of drawings
Fig. 1 is the scheme drawing of the utility model embodiment one;
Fig. 2 is the scheme drawing of the utility model embodiment two.
Five, the specific embodiment
Accompanying drawing is two embodiment of the present utility model, includes telescopic single oil cylinder, telescopic multiple-joint oil tank, the adaptor union that connects cylinder and arm, winding plant 6 etc., and multiple-joint oil tank is arranged in the single oil cylinder.Described single oil cylinder is a sleeve type, is promptly formed by a plurality of arm cover suits.Described multiple-joint oil tank also is a sleeve type, is promptly formed by a plurality of cylinder sleeve suits.The joint number of single oil cylinder can design definite as required, and the joint number of multiple-joint oil tank can design definite as required.
Embodiment one (seeing accompanying drawing 1): present embodiment is to be example with four joint arms, and promptly single oil cylinder is that 4 joint arms cover suits form, and 4 joint arms covers are respectively 1-1,1-2,1-3,1-4 from outside to inside.Multiple-joint oil tank also is that 4 joint cylinder sleeve suits form, and 4 joint cylinder sleeves are respectively 2-4,2-3,2-2,2-1 from outside to inside.Multiple-joint oil tank is " flip-over type " and is arranged in the single oil cylinder, and promptly the interior joint cylinder sleeve 2-1 of multiple-joint oil tank is arranged on the outermost one joint arm cover 1-1 place of single oil cylinder.Every joint cylinder sleeve of multiple-joint oil tank is captiveed joint with a corresponding joint arm cover in the single oil cylinder by adaptor union.The outermost one joint cylinder sleeve 2-4 of multiple-joint oil tank overlaps 1-4 by adaptor union with interior joint (also being a joint foremost) arm of single oil cylinder captives joint, and also can take the front end of this joint cylinder sleeve directly to be fixed on this joint arm and put.The front end of the cylinder sleeve of multiple-joint oil tank (removing outermost one joint cylinder sleeve) is provided with sealing orienting sleeve 4, is provided with oil sealing 5 between the acromere cylinder sleeve that sealing orienting sleeve 4 matches with it.Interior joint (also being a rearmost joint) cylinder sleeve 2-1 of multiple-joint oil tank is provided with the oilhole 10 that is communicated with hydraulic efficiency gear, and multiple-joint oil tank is communicated with the hydraulic efficiency gear of car hosit by its oilhole 10.Winding plant 6 is arranged on the car hosit, and the steel rope of winding plant 6 puts in the single oil cylinder, is connected with the interior joint arm cover 1-4 of single oil cylinder.
The version of adaptor union is a lot, and present embodiment includes terminal pad 3-2, contiguous block 3-1, packing seal 3-3 etc.Contiguous block 3-1 is fixed on the arm that matches with this cylinder sleeve and puts, contiguous block 3-1 puts in the arm cover and is provided with link slot, terminal pad 3-2 is fixed on the other end of cylinder sleeve, and promptly an end (front end) of cylinder sleeve is fixed with sealing orienting sleeve 4, and the other end (rear end) is fixed with terminal pad 3-2.The dish edge spiral-lock of terminal pad 3-2 is in the link slot of contiguous block 3-1.
When needs extend, handle the hydraulic efficiency gear of car hosit, hydraulic oil injects multiple-joint oil tank by the oilhole 10 of multiple-joint oil tank, makes the multiple-joint oil tank elongation, and multiple-joint oil tank drives single oil cylinder by adaptor union and extends synchronously.In the single oil cylinder elongation, the steel rope of winding plant 6 is also along with being elongated.When needs shrink, operation winding plant 6 and hydraulic efficiency gear make the hydraulic oil in the multiple-joint oil tank be back to hydraulic efficiency gear, drop the interior joint arm cover 1-4 by winding plant 6 by steel rope, under the effect of hydraulic efficiency gear and winding plant 6, whole single oil cylinder and multiple-joint oil tank are shunk together.
Embodiment two: present embodiment is on the basis of embodiment, increase by a joint arm cover 1-5, and multiple-joint oil tank does not need to increase cylinder sleeve, is another form that the utility model can be saved a joint cylinder sleeve; Be that single oil cylinder is that 5 joint arm cover suits form, 5 joint arm covers are respectively 1-1,1-2,1-3,1-4,1-5 from outside to inside.Multiple-joint oil tank also is that 4 joint cylinder sleeve suits form, and 4 joint cylinder sleeves are respectively 2-4,2-2,2-3,2-1 from outside to inside.Multiple-joint oil tank is " flip-over type " and is arranged in the single oil cylinder, and promptly the interior joint cylinder sleeve 2-1 of multiple-joint oil tank is arranged on the outermost one joint arm cover 1-1 place of single oil cylinder.Every joint cylinder sleeve of multiple-joint oil tank is captiveed joint with a corresponding joint arm cover in the single oil cylinder by adaptor union.The outermost one joint cylinder sleeve 2-4 of multiple-joint oil tank is captiveed joint with interior several second joints (also being second to save foremost) arm cover 1-4 of single oil cylinder by adaptor union.
The front end of the cylinder sleeve of multiple-joint oil tank (removing outermost one joint cylinder sleeve) is provided with sealing orienting sleeve 4, is provided with oil sealing 5 between the acromere cylinder sleeve that sealing orienting sleeve 4 matches with it.Interior joint (also being a rearmost joint) cylinder sleeve 2-1 of multiple-joint oil tank is provided with the oilhole 10 that is communicated with hydraulic efficiency gear, and multiple-joint oil tank is communicated with the hydraulic efficiency gear of car hosit by its oilhole 10.Winding plant 6 is arranged on the car hosit, and the steel rope 6 of winding plant 6 puts in the single oil cylinder, is connected with the interior joint arm cover 1-5 of single oil cylinder.
Present embodiment also is provided with pulley 7, steel rope I 8, rear end at the interior joint arm cover 1-5 of single oil cylinder is provided with pulley 7, and the end of steel rope I 8 is fixed on front end, the other end of interior several second joints (also being front end second joint) arm cover 1-4 of single oil cylinder and walks around the front end that pulley 7 is fixed on the outermost one joint cylinder sleeve 2-4 of multiple-joint oil tank.Can save a joint cylinder sleeve like this.
When needs extend, handle the hydraulic efficiency gear of car hosit, hydraulic oil injects multiple-joint oil tank by the oilhole 10 of multiple-joint oil tank, make the multiple-joint oil tank elongation, multiple-joint oil tank extends synchronously by 4 joint arm cover 1-1,1-2,1-3, the 1-4 that adaptor union drives single oil cylinder, and cylinder sleeve 2-4 stretches out forward by steel rope I 8, the interior joint arm cover 1-5 of pulley 7 drives simultaneously.In the single oil cylinder elongation, the steel rope of winding plant 6 is also along with being elongated.When needs shrink, operation winding plant 6 and hydraulic efficiency gear make the hydraulic oil in the multiple-joint oil tank be back to hydraulic efficiency gear, drop the interior joint arm cover 1-5 by winding plant 6 by steel rope, under the effect of hydraulic efficiency gear and winding plant 6, whole single oil cylinder and multiple-joint oil tank are shunk together.
Because being multiple-joint oil tank to be inverted, the utility model is arranged in the single oil cylinder, and by connector and more piece Arm connects, and the cylinder sleeve of its front end (it is front stretching out direction) is outmost cylinder sleeve, also is the cylinder of diameter maximum Cover has increased lifting force like this, has effectively improved bending strength and the multiple-joint oil tank of whole telescopic arm simultaneously The warp resistance ability. In single oil cylinder, only has multiple-joint oil tank, steel cable and a multiple-joint oil tank and many The joint arm connects the connector of usefulness. And do not need the support staff during operation, use safety. Therefore, the utility model Having arbitrarily to increase the design collapsing length, simple in structure, need not increase auxiliary, safe and reliable, dimension Repair conveniently, easily manufactured, the characteristics such as cost is low.
Claims (3)
1, the telescopic boom that a kind of car hosit double-cylinder type is flexible, include telescopic single oil cylinder, telescopic multiple-joint oil tank, the adaptor union that connects cylinder and arm, winding plant (6), multiple-joint oil tank is arranged in the single oil cylinder, it is characterized in that: described single oil cylinder is a sleeve type, described multiple-joint oil tank also is a sleeve type, multiple-joint oil tank is " flip-over type " and is arranged in the single oil cylinder, every joint cylinder sleeve of multiple-joint oil tank is captiveed joint with a corresponding joint arm cover in the single oil cylinder by adaptor union, the interior joint cylinder sleeve (2-1) of multiple-joint oil tank is provided with the oilhole (10) that is communicated with hydraulic efficiency gear, multiple-joint oil tank is communicated with the hydraulic efficiency gear of car hosit by its oilhole (10), winding plant (6) is arranged on the car hosit, and the steel rope of winding plant (6) puts in the single oil cylinder, be connected with the interior joint arm cover of single oil cylinder.
2, the flexible telescopic boom of car hosit double-cylinder type according to claim 1, it is characterized in that: the front end of the cylinder sleeve of described multiple-joint oil tank is provided with sealing orienting sleeve (4), is provided with oil sealing (5) between the acromere cylinder sleeve that sealing orienting sleeve (4) matches with it.
3, the flexible telescopic boom of car hosit double-cylinder type according to claim 1, it is characterized in that: also include pulley (7), steel rope I (8), rear end at the interior joint arm cover (1-5) of single oil cylinder is provided with pulley (7), and the end of steel rope I (8) is fixed on front end, the other end of interior several second joint arm covers (1-4) of single oil cylinder and walks around the front end that pulley (7) is fixed on the outermost one joint cylinder sleeve (2-4) of multiple-joint oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200237197U CN201220894Y (en) | 2008-06-02 | 2008-06-02 | Cylinder type telescoping mechanism for truck crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200237197U CN201220894Y (en) | 2008-06-02 | 2008-06-02 | Cylinder type telescoping mechanism for truck crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201220894Y true CN201220894Y (en) | 2009-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200237197U Expired - Fee Related CN201220894Y (en) | 2008-06-02 | 2008-06-02 | Cylinder type telescoping mechanism for truck crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201220894Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585491B (en) * | 2009-06-17 | 2011-04-13 | 三一汽车制造有限公司 | Automobile crane and device with multiple sections of telescopic jibs thereof |
| CN107021424A (en) * | 2016-01-29 | 2017-08-08 | 马尼托意大利有限责任公司 | Telescopic arm for self-propelled Work machine |
-
2008
- 2008-06-02 CN CNU2008200237197U patent/CN201220894Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585491B (en) * | 2009-06-17 | 2011-04-13 | 三一汽车制造有限公司 | Automobile crane and device with multiple sections of telescopic jibs thereof |
| CN107021424A (en) * | 2016-01-29 | 2017-08-08 | 马尼托意大利有限责任公司 | Telescopic arm for self-propelled Work machine |
| CN107021424B (en) * | 2016-01-29 | 2019-09-03 | 马尼托意大利有限责任公司 | Telescopic arm for self-propelled Work machine |
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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: 20090415 Termination date: 20100602 |