CN101279694A - Ultra-low light lorry-mounted crane - Google Patents
Ultra-low light lorry-mounted crane Download PDFInfo
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- CN101279694A CN101279694A CNA2008100551776A CN200810055177A CN101279694A CN 101279694 A CN101279694 A CN 101279694A CN A2008100551776 A CNA2008100551776 A CN A2008100551776A CN 200810055177 A CN200810055177 A CN 200810055177A CN 101279694 A CN101279694 A CN 101279694A
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- crane
- lorry
- hoisting crane
- hydraulic pressure
- worm
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Abstract
The invention discloses a lorry-mounted crane with ultralow weight, which belongs to the technology field of the lorry-mounted crane. The problems to be solved are that: a lorry-mounted crane with ultralow weight is provided, in particular to a lorry-mounted crane with ultralow weight, small appearance size; a slewing mechanism of the lorry-mounted crane adopts a hydraulic motor to directly drive a slewing bearing which is provided with worm gear teeth to rotate through a worm. The adopted scheme is that: the lorry-mounted crane essentially consists of an automobile chassis and a crane. The crane comprises a crane hydraulic system, a slewing bearing chassis assemble, a rotary table, a basic arm, a crane amplitude cylinder, a crane hydraulic hoisting assemble, a rotating motor, a crane hydraulic system, a crane electrical system, and a hook rigging. The slewing bearing chassis assemble comprises a pedestal fixed on the automobile chassis, the slewing bearing with a worm gear tooth on the external surface fixed above the pedestal, and the worm matched with the worm gear on the external surface of the slewing bearing, as well as a rotary motor as the power input end of the worm. The lorry-mounted crane can be used for hoisting heavy objects in all projects.
Description
Technical field
Ultra-low light lorry-mounted crane of the present invention 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.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, problem to be solved is: a kind of ultra-low light lorry-mounted crane is provided, the ultra-low light that specifically provides a kind of swing type mechanism employing HM Hydraulic Motor directly to have the pivoting support rotation of worm-gear toothing, and lorry-mounted crane in light weight, that oad is little by worm drive.
In order to address the above problem, the technical scheme that ultra-low light lorry-mounted crane of the present invention adopts is: ultra-low light lorry-mounted crane, mainly form by car chassis and hoisting crane, described hoisting crane comprises: crane hydraulic system, pivoting support base assembly, turntable, basic arm, the crane amplitude variation oil cylinder, hoisting crane hydraulic pressure elevator assembly, rotary motor, crane hydraulic system, hoisting crane electric system and suspension hook rigging, described pivoting support base assembly comprises: be fixed on the pedestal on the car chassis, be fixed on pedestal top and outer end and wear the pivoting support of worm-gear toothing shape, the worm screw that is complementary with the worm gear of pivoting support outer face, rotary motor as the power intake of 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.
Described rotary motor is a rotary fluid motor, or is the revolution electro-motor.
Described crane hydraulic system comprises: the hoisting crane fuel tank, be arranged on foremost hoist pump of hoisting crane fuel tank delivery conduit, be arranged on the electromagnetic relief valve between hoisting crane fuel tank delivery conduit and the return line, respectively the crane amplitude variation oil cylinder that links to each other with hoisting crane fuel tank delivery conduit, hoisting crane hydraulic pressure elevator assembly and rotary motor; Input end at described crane amplitude variation oil cylinder, hoisting crane hydraulic pressure elevator assembly and rotary motor is provided with an electromagnetic hydraulic pressure change-over valve separately; On the pipeline between described crane amplitude variation oil cylinder and hoisting crane hydraulic pressure elevator assembly and the electromagnetic hydraulic pressure change-over valve, also be provided with balance cock.
Described hoisting crane electric system comprises: electromagnetic hydraulic pressure change-over valve, hoist pump, electromagnetic relief valve, combined aural and visual alarm, hand-held indirect type hoisting crane button switch and electro-hydraulic controller, its structure is: electro-hydraulic controller links to each other with electromagnetic hydraulic pressure change-over valve, hoist pump, electromagnetic relief valve, combined aural and visual alarm and hand-held indirect type hoisting crane button switch respectively by lead.
The beneficial effect that ultra-low light lorry-mounted crane of the present invention compared with prior art has is:
1, because the swing type mechanism of ultra-low light lorry-mounted crane of the present invention adopts HM Hydraulic Motor directly to have the pivoting support rotation of worm gear profile of tooth 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 17 in the pivoting support base assembly 1 of ultra-low light lorry-mounted crane of the present invention is meshed with pivoting support 27 less than it, this moment, worm screw 17 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 pivoting support of worm-gear toothing shape is worn and worm screw all is to adopt the steel machine to add part in outer end of the present invention, has saved the use of non-metals copper alloy, has saved cost.
Description of drawings
Below in conjunction with accompanying drawing ultra-low light lorry-mounted crane of the present invention is described further:
Fig. 1 is the structural representation of ultra-low light lorry-mounted crane of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
The schematic diagram of crane hydraulic system 6 in Fig. 3 ultra-low light lorry-mounted crane of the present invention;
Fig. 4 is the structural representation of hoisting crane electric system 9 in the invention ultra-low light lorry-mounted crane.
Among the figure: 1-pivoting support base assembly, the 2-turntable, 3-hoisting crane hydraulic pressure elevator assembly, the 4-rotary motor, 5-crane amplitude variation oil cylinder, the 6-crane hydraulic system, 7-hands indirect type hoisting crane button switch, the 8-electro-hydraulic controller, 9-hoisting crane electric system, the 10-basic arm, the 11-support, 12-suspension hook rigging, the 13-high strength bolt, 14-first packing ring, the 15-mount pad, the 16-bearing, the 17-worm screw, the 18-pedestal, the 19-bolt, 20-second packing ring, the 21-pin, 22-electromagnetic hydraulic pressure change-over valve, the 23-balance cock, the 24-electromagnetic relief valve, 25-hoisting crane fuel tank, the 26-hoist pump, the 27-pivoting support, the 28-combined aural and visual alarm.
The specific embodiment
Fig. 1 is the structural representation of ultra-low light lorry-mounted crane of the present invention, and Fig. 2 is the A-A cutaway view of Fig. 1; Outside drawing when being off working state as Fig. 1-2, ultra-low light 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 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 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.
Described rotary motor 4 is a rotary fluid motor, can also be the revolution electro-motor.
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 present invention 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 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 by in basic arm 10 arms around involving on the machine of raising 3 to hoisting crane hydraulic pressure; 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 present invention realizes: selected pivoting support 27 directly is processed into and the corresponding worm gear profile of tooth of worm screw when the tooth Profile Machining, and 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.Ultra-low light lorry-mounted crane of the present invention can adapt to different places job requirements in the certain slope scope.
The schematic diagram of crane hydraulic system 6 in Fig. 3 ultra-low light lorry-mounted crane of the present invention, 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 motor 4; Input end at described crane amplitude variation oil cylinder 5, hoisting crane hydraulic pressure elevator assembly 3 and rotary 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 among the present invention.
Fig. 4 is the structural representation of hoisting crane electric system 9 in the invention ultra-low light 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 (5)
1. ultra-low light lorry-mounted crane, mainly form by 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 motor (4), crane hydraulic system (6), hoisting crane electric system (9) and suspension hook rigging (12) is characterized in that described pivoting support base assembly (1) comprising: be fixed on the pedestal (18) on the car chassis, be fixed on pedestal (18) top 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 face, rotary motor (4) as the power intake of worm screw (17).
2. ultra-low light lorry-mounted crane according to claim 1, it is characterized in that: the number of described worm screw (17) can be 1,2,4 or 6, and the angle of spiral of worm screw (17) is less than its equivalent friction angle with the active flank of pivoting support (27) when being meshed.
3. ultra-low light lorry-mounted crane according to claim 1 is characterized in that: described rotary motor (4) is a rotary fluid motor, or is the revolution electro-motor.
4. according to any described ultra-low light lorry-mounted crane of claim 1-3, it is characterized in that described crane hydraulic system (6) comprising: hoisting crane fuel tank (25), be arranged on foremost hoist pump (26) of hoisting crane fuel tank (25) delivery conduit, be arranged on the electromagnetic relief valve (24) between hoisting crane fuel tank (25) delivery conduit and the return line, respectively crane amplitude variation oil cylinder (5), hoisting crane hydraulic pressure elevator assembly (3) and the rotary motor (4) that links to each other with hoisting crane fuel tank (25) delivery conduit;
Input end at described crane amplitude variation oil cylinder (5), hoisting crane hydraulic pressure elevator assembly (3) and rotary 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).
5. ultra-low light lorry-mounted crane according to claim 4, it is characterized in that described hoisting crane electric system (9) comprising: 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) links to each other with electromagnetic hydraulic pressure change-over valve (22), hoist pump (26), electromagnetic relief valve (24), combined aural and visual alarm (28) and hand-held indirect type hoisting crane button switch (7) respectively by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100551776A CN101279694A (en) | 2008-05-26 | 2008-05-26 | Ultra-low light lorry-mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100551776A CN101279694A (en) | 2008-05-26 | 2008-05-26 | Ultra-low light lorry-mounted crane |
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| Publication Number | Publication Date |
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| CN101279694A true CN101279694A (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100551776A Pending CN101279694A (en) | 2008-05-26 | 2008-05-26 | Ultra-low light lorry-mounted crane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336369A (en) * | 2010-07-15 | 2012-02-01 | 徐州重型机械有限公司 | Construction vehicle and arm support supporting device thereof |
| CN102491187A (en) * | 2011-11-25 | 2012-06-13 | 湖南省电力公司超高压管理局 | Portable self-supporting titanium alloy hydraulic hoisting derrick |
| CN104743456A (en) * | 2015-03-05 | 2015-07-01 | 长治清华机械厂 | Lorry-mounted crane |
-
2008
- 2008-05-26 CN CNA2008100551776A patent/CN101279694A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336369A (en) * | 2010-07-15 | 2012-02-01 | 徐州重型机械有限公司 | Construction vehicle and arm support supporting device thereof |
| CN102336369B (en) * | 2010-07-15 | 2013-07-24 | 徐州重型机械有限公司 | Construction vehicle and arm support supporting device thereof |
| CN102491187A (en) * | 2011-11-25 | 2012-06-13 | 湖南省电力公司超高压管理局 | Portable self-supporting titanium alloy hydraulic hoisting derrick |
| CN104743456A (en) * | 2015-03-05 | 2015-07-01 | 长治清华机械厂 | Lorry-mounted crane |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20081008 |