CN201228210Y - Turning mechanism of lorry-mounted crane - Google Patents
Turning mechanism of lorry-mounted crane Download PDFInfo
- Publication number
- CN201228210Y CN201228210Y CNU2008200773688U CN200820077368U CN201228210Y CN 201228210 Y CN201228210 Y CN 201228210Y CN U2008200773688 U CNU2008200773688 U CN U2008200773688U CN 200820077368 U CN200820077368 U CN 200820077368U CN 201228210 Y CN201228210 Y CN 201228210Y
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- lorry
- worm
- crane
- pivoting support
- rotary
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Abstract
The utility model discloses a rotary mechanism of a lorry crane, the rotary mechanism belongs to the technical field of the lorry cranes, the problem to be solved is to provide the rotary mechanism of the lorry crane, in particular to the rotating rotary mechanism which adopts a hydraulic motor, is directly driven by a worm and comprises a rotary support with worm gear teeth, the adopted proposal is as follows: the rotary mechanism of the lorry crane mainly comprises: a base which is fixed on a vehicle chassis, the rotary support which is fixed above the base and a power source; the rotary support is a disk with worm gear teeth on the outer end surface; the power source comprises the worm which is matched with the worm gear teeth on the outer end surface of the rotary support and the rotary hydraulic motor with an output end which is connected with the worm; the rotary mechanism can be widely applied in various cranes and be particularly applicable to light lorry cranes.
Description
Technical field
The swing type mechanism of the utility model lorry-mounted crane belongs to the lorry-mounted crane technical field.
Background technology
Lorry-mounted crane is the well accepted product in market, because the difference of behavior of structure, installation site and the use occasion of product, the technology and the structural requirement of lorry-mounted crane is also varied.Especially some special-use vehicles, deadweight to lorry-mounted crane requires gently, functional requirement is powerful and oad requires little, but the pivoting support of many employings of swing type mechanism standard and miniature gears are formed the one-level deceleration in traditional lorry-mounted crane, then slow down by having the retarder that slows down with braking function again, thereby obtain satisfactory speed of revolutions and driving torque.This construction profile size is big, weight is heavier.Swing type mechanism also has rack-and-gear to add the sliding bearing structure pattern in addition, is that the construction profile size is big, weight is heavier equally, and because of need bearing is installed and is made axial dimension bigger.
The utility model content
The utility model overcomes the deficiency that prior art exists, problem to be solved is: a kind of swing type mechanism of lorry-mounted crane is provided, and being specially provides a kind of swing type mechanism to adopt HM Hydraulic Motor directly to have the swing type mechanism of the lorry-mounted crane that the pivoting support of worm-gear toothing rotates by worm drive.
In order to address the above problem, the technical scheme that the swing type mechanism of the utility model lorry-mounted crane adopts is: the swing type mechanism of lorry-mounted crane mainly comprises: be fixed on pedestal on the car chassis, be fixed on pivoting support, the propulsion source of pedestal top; Described pivoting support is the disk that worm-gear toothing shape is worn in the outer end; Described propulsion source comprises the rotary fluid motor that the worm screw that is complementary with the outer face worm gear profile of tooth of pivoting support and mouth are connected worm screw.
The number of described worm screw can be 1,2,4 or 6, and the equivalent friction angle of the active flank of the angle of spiral of worm screw when being meshed with pivoting support less than it.
The beneficial effect that the swing type mechanism of the utility model lorry-mounted crane compared with prior art has is:
1, because the swing type mechanism of the swing type mechanism of the utility model lorry-mounted crane adopts HM Hydraulic Motor directly to have the pivoting support rotation of worm-gear toothing by worm drive, be equivalent to reduce the one-level reduction gear apparatus than traditional lorry-mounted crane, make that hoisting crane part contour structures is compact more in the whole lorry-mounted crane, weight saving, cost reduces.
2, the equivalent friction angle of the active flank when the angle of spiral of worm screw in the pivoting support base assembly of the swing type mechanism of the utility model lorry-mounted crane is meshed with pivoting support less than it, this moment, worm screw self had auto-lock function, can realize the rotary braking function, prevent that side is changeed in the driving, make it have the function that gradient revolution stops to brake;
2, the utility model outer end pivoting support and worm screw of wearing worm-gear toothing shape all adopts the steel machine to add part, saved the use of non-metals copper alloy, saved cost.
Description of drawings
Be described further below in conjunction with the swing type mechanism of accompanying drawing the utility model lorry-mounted crane:
Fig. 1 is the structural representation of the swing type mechanism of the utility model lorry-mounted crane;
Fig. 2 is A-A cutaway view of Fig. 1;
The schematic diagram of crane hydraulic system 6 in the swing type mechanism of Fig. 3 the utility model lorry-mounted crane;
Fig. 4 is the structural representation of hoisting crane electric system 9 in the swing type mechanism of utility model lorry-mounted crane.
Among the figure: 1-pivoting support base assembly, 2-turntable, 3-hoisting crane hydraulic pressure elevator assembly, 4-rotary fluid motor, 5-crane amplitude variation oil cylinder, 6-crane hydraulic system, 7-hand-held indirect type hoisting crane button switch, 8-electrohydraulic control case, 9-hoisting crane electric system, 10-basic arm, 11-support, 12-suspension hook rigging, 13-high strength bolt, 14-the first packing ring, 15-mount pad, 16-bearing, 17-worm screw, 18-pedestal, 19-bolt, 20-the second packing ring, 21-pin, 22-electromagnetic hydraulic pressure change-over valve, 23-balance cock, 24-electromagnetic relief valve, 25-hoisting crane fuel tank, 26-hoist pump, 27-pivoting support, 28-combined aural and visual alarm.
The specific embodiment
Fig. 1 is the structural representation of the swing type mechanism of the utility model lorry-mounted crane, and Fig. 2 is A-A cutaway view of Fig. 1; Outside drawing when being off working state as Fig. 1-2, the swing type mechanism of lorry-mounted crane mainly is made up of car chassis and hoisting crane, described hoisting crane comprises: crane hydraulic system 6, pivoting support base assembly 1, turntable 2, basic arm 10, crane amplitude variation oil cylinder 5, hoisting crane hydraulic pressure elevator assembly 3, rotary fluid motor 4, crane hydraulic system 6, hoisting crane electric system 9 and suspension hook rigging 12, described pivoting support base assembly 1 comprises the pedestal 18 that is fixed on the car chassis, be fixed on pedestal 18 tops and outer end and wear the pivoting support 27 of worm-gear toothing shape, the worm screw 17 that is complementary with the worm gear of pivoting support 27 outer faces, rotary fluid motor 4 as the power intake of worm screw 17.
The number of described worm screw 17 is 1, and the equivalent friction angle of the active flank of the angle of spiral of worm screw 17 when being meshed with pivoting support 27 less than it, and the number of worm screw 17 can be 2,4 or 6.
Be provided with support 11 on car chassis and at the other end of pivoting support base assembly 1, support 11 is used for driving process supporting basic arm 10.
The utility model unites two into one pivoting support and worm gear, forms the pivoting support 27 with worm gear profile of tooth; Worm gear profile of tooth pivoting support 27 drives the pivoting support 27 outer rings rotation that worm screw 17 drives the worm gear profile of tooth with worm screw 17 engagements, rotary fluid motor 4; The pivoting support 27 of worm gear profile of tooth is located with pin 21 earlier with mount pad 15, and tentatively is linked together with the bolt 19 and second packing ring 20.Worm screw 17 usefulness bearings 16 are fixed on the mount pad 15; Be fixed on the pedestal 18 with high strength bolt 13 and first packing ring 14 pivoting support 27, mount pad 15 the worm gear profile of tooth.
The turntable 2 usefulness high strength bolts 13 and first packing ring 14 are fixed on the pivoting support 27 of worm gear profile of tooth; Basic arm 10 is hinged with turntable 2; Hoisting crane hydraulic pressure elevator assembly 3 is installed in the rear portion of basic arm 10; Crane amplitude variation oil cylinder 5 one ends are connected with basic arm 10, and the other end is connected with turntable 2; Steel rope one end of suspension hook rigging 12 is by raising on the assembly 3 around involving in to hoisting crane hydraulic pressure in basic arm 10 arms; When turntable 2 rotates, drive whole lorry-mounted crane revolution; Suspension hook rigging 12 adopts single multiplying power form.In order to realize the brake request of lorry-mounted crane, 17 numbers of worm screw adopt single head, make the worm and gear transmission have auto-lock function, utilize self-locking to realize the rotary braking of lorry-mounted crane, have saved the rotary braking device; Adopt single start worm, realized improving to greatest extent under the limited contour dimension rotary decelerating ratio, have Practical significance reducing speed of revolutions and mating the total system parameter.
The approach that the utility model is realized: selected pivoting support 27 directly is processed into and the corresponding worm gear profile of tooth of worm screw when the tooth Profile Machining, worm and gear can have multiple profile of tooth, comprises profiles of tooth such as common ZA type (Achimedean spiral), circle-arc tooth, twice-enveloping line.Tooth profile parameter is calculated by dynamics analysis to be determined.The pivoting support 27 and the worm screw 17 of worm gear profile of tooth are steelwork, and according to the difference of operating needs, worm and gear can be the hard flank of tooth or the soft flank of tooth, and general worm screw 17 flank of tooth are the hard flank of tooth and carry out flank of tooth grinding.Under the accuracy requirement of determining, guarantee processing and setting accuracy, adopt suitable lubricant medium, guarantee the normal lubricated of engagement position and bearing, adopt single start worm 17, though reduced driving efficiency, but Worm and worm-wheel gearing has self-locking performance, has saved the rotary braking device.The swing type mechanism of the utility model lorry-mounted crane can adapt to different places job requirements in the certain slope scope.
The schematic diagram of crane hydraulic system 6 in the swing type mechanism of Fig. 3 the utility model lorry-mounted crane, crane hydraulic system 6 comprises among the figure: hoisting crane fuel tank 25, be arranged on foremost hoist pump 26 of hoisting crane fuel tank 25 delivery conduits, be arranged on the electromagnetic relief valve 24 between hoisting crane fuel tank 25 delivery conduits and the return line, respectively the crane amplitude variation oil cylinder 5 that links to each other with hoisting crane fuel tank 25 delivery conduits, hoisting crane hydraulic pressure elevator assembly 3 and rotary fluid motor 4; Input end at described crane amplitude variation oil cylinder 5, hoisting crane hydraulic pressure elevator assembly 3 and rotary fluid motor 4 is provided with an electromagnetic hydraulic pressure change-over valve 22 separately; On the pipeline between described crane amplitude variation oil cylinder 5 and hoisting crane hydraulic pressure elevator assembly 3 and the electromagnetic hydraulic pressure change-over valve 22, also be provided with balance cock 23.Wherein hoisting crane fuel tank 25 and hoist pump 26 are as the propulsion source of hoisting crane in the utility model.
Fig. 4 is the structural representation of hoisting crane electric system 9 in the swing type mechanism of utility model lorry-mounted crane, described hoisting crane electric system 9 comprises: electromagnetic hydraulic pressure change-over valve 22, hoist pump 26, electromagnetic relief valve 24, combined aural and visual alarm 28, hand-held indirect type hoisting crane button switch 7 and electro-hydraulic controller 8, its structure is: electro-hydraulic controller 8 by lead respectively with electromagnetic hydraulic pressure change-over valve 22, hoist pump 26, electromagnetic relief valve 24, combined aural and visual alarm 28 links to each other with hand-held indirect type hoisting crane button switch 7, and wherein electrohydraulic control case 8 is arranged on the car chassis of below, basic arm 10 middle parts.
Claims (2)
1. the swing type mechanism of lorry-mounted crane mainly comprises: be fixed on pedestal on the car chassis, be fixed on pivoting support, the propulsion source of pedestal top; It is characterized in that: described pivoting support is the disk that worm-gear toothing shape is worn in the outer end; Described propulsion source comprises the rotary fluid motor that the worm screw that is complementary with the outer face worm gear profile of tooth of pivoting support and mouth are connected worm screw.
2. the swing type mechanism of lorry-mounted crane according to claim 1, it is characterized in that: the number of described worm screw can be 1,2,4 or 6, and the equivalent friction angle of the active flank of the angle of spiral of worm screw when being meshed with pivoting support less than it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200773688U CN201228210Y (en) | 2008-05-26 | 2008-05-26 | Turning mechanism of lorry-mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200773688U CN201228210Y (en) | 2008-05-26 | 2008-05-26 | Turning mechanism of lorry-mounted crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201228210Y true CN201228210Y (en) | 2009-04-29 |
Family
ID=40633168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200773688U Expired - Fee Related CN201228210Y (en) | 2008-05-26 | 2008-05-26 | Turning mechanism of lorry-mounted crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201228210Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966966B (en) * | 2009-07-27 | 2012-07-11 | 杨建国 | Fishing crane |
-
2008
- 2008-05-26 CN CNU2008200773688U patent/CN201228210Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966966B (en) * | 2009-07-27 | 2012-07-11 | 杨建国 | Fishing crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20150526 |
|
| EXPY | Termination of patent right or utility model |