CN202967891U - Energy-efficient electro-hydraulic grab - Google Patents
Energy-efficient electro-hydraulic grab Download PDFInfo
- Publication number
- CN202967891U CN202967891U CN 201220703152 CN201220703152U CN202967891U CN 202967891 U CN202967891 U CN 202967891U CN 201220703152 CN201220703152 CN 201220703152 CN 201220703152 U CN201220703152 U CN 201220703152U CN 202967891 U CN202967891 U CN 202967891U
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- grab
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- bucket
- hinged
- hydraulic
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Abstract
The utility model discloses an energy-efficient electro-hydraulic grab, and belongs to the field of a grab. The energy-efficient electro-hydraulic grab comprises a grab body formed by a left grab body and a right grab body, and a seat plate, wherein the left grab body and the right grab body are connected with the seat plate through connecting rods respectively; the upper end of each connecting rod is hinged with the seat plate; the lower end is respectively hinged with the left grab body and the right grab body; a hoisting pulley block or a hook suspension loop is arranged at the upper end of the seat plate; the energy-efficient electro-hydraulic grab also comprises a control mechanism for controlling the grab to move; the control mechanism for controlling the grab to move is a hydraulic system with an energy accumulator arranged on the seat plate; the hydraulic system comprises two cylinders; the upper ends of main ribs of the left grab body and the right grab body are hinged with the head part of a corresponding cylinder piston rod; the hydraulic control mechanism comprises a motor, a cylinder, an electromagnetic valve, an overflow valve, an oil pump and the energy accumulator; and the cylinder piston rod is hinged with the upper ends of the main ribs of the grab bodies. The grab is controlled to open or close by the stretching of the piston rod to finish unloading operation. The energy-efficient electro-hydraulic grab has the advantages of being energy-saving, fast in operation speed, simple and convenient to operate and low in fault rate.
Description
Technical field
The utility model relates to a kind of grab bucket, specifically a kind of energy-efficient electric hydaulic grab bucket.
Background technology
Grab bucket is a kind of loading-unload machine parts that railway goods yard, mine, harbour etc. transport the place that are applicable to, and is used for the loading and unloading railway bulk cargo.Mainly comprise left bucket body, right bucket body, connecting rod and seat board; Control the open and close bucket by motor-drg-reductor-reel-steel rope-assembly pulley; The downslide wheels of tradition two lobe formula grab buckets and the hinge-point of bucket body are on the upper edge of bucket body, and namely hinge-point is low, and when the crawl goods, bucket is very shallow along injecting goods, and downslide wheels base plate just touches goods, and be very large on the impact of crawl goods; The tradition grab bucket realizes the open and close bucket by driven by motor reel/steel rope/assembly pulley, easily occurs grab bucket opening deficiency or steel rope when opening bucket and crosses the groove that gets loose, and need rely on limit switch when closing bucket and do guarantee, and operative technique is had relatively high expectations; To impact power consumption excessive due to complicated mechanism, Fraquent start/braking.When tradition grab bucket chance abnormal condition closure-resistive is excessive, because the motor overload ability is very large, easily causes the bucket body distortion or tear.
Summary of the invention
For solving the prior art above shortcomings, the utility model provides a kind of energy-efficient electric hydaulic grab bucket.
The utility model is realized with following technical scheme: a kind of energy saving electric hydraulic grab bucket, comprise the skip body that is formed by left bucket body and right bucket body, seat board, between left bucket body and right bucket body and seat board respectively by connecting rod be connected, small end and seat board hinged, the lower end is hinged with left bucket body and right bucket body respectively; The seat board upper end is equipped with lifting assembly pulley or gib head link; Also comprise the control mechanism of controlling the grab bucket motion; The control mechanism of described control grab bucket motion is the hydraulic efficiency pressure system with energy storage that is arranged on seat board, and hydraulic efficiency pressure system has 2 oil cylinders, and the oil cylinder piston club head of the upper end of the main muscle of left bucket body and right bucket body and correspondence is hinged.
Described hydraulic control comprises motor, oil cylinder, electromagnetic valve, by pass valve, oil pump and energy storage, cylinder piston rod and bucket body master muscle upper end are hinged, utilize piston rod extension and contraction control grab bucket open or closed, complete loading and unloading operation.The hydraulic control that adopts is known technology, therefore do not describe in detail.
The utility model and prior art relatively have following advantage: energy-conservation, operating speed is fast, and is easy and simple to handle, failure rate is low.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the lateral plan of Fig. 1;
Fig. 3 is the red mechanism of paper schematic diagram of hydraulic pressure.
In figure: 1, hydraulic ram, 2, the lifting assembly pulley, 3, connecting rod, 4, left bucket body, 4.1, right bucket body, 5, seat board, 6, energy storage, 7, electromagnetic valve, 8, motor, 9, by pass valve, 10, oil pump, 11, main muscle.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the energy saving electric hydraulic grab bucket comprises the skip body that is comprised of left bucket body 4 and right bucket body 4.1, seat board 5, between left bucket body 4 and right bucket body 4.1 and seat board 5 respectively by connecting rod 3 be connected, connecting rod 3 upper ends and seat board 5 hinged, the lower end is hinged with left bucket body 4 and right bucket body 4.1 respectively; Seat board 5 upper ends are equipped with lifting assembly pulley 2 or gib head link; Also comprise the control mechanism of controlling the grab bucket motion; The cylinder piston rod of the upper end of the main muscle 11 of left bucket body 4 and right bucket body 4.1 and correspondence is hinged; The control mechanism of described control grab bucket motion is the hydraulic efficiency pressure system with energy storage that is arranged on seat board.Utilize piston rod to stretch out (retraction) and open (closure) grab bucket, complete loading and unloading operation.
As shown in Figure 3, hydraulic efficiency pressure system comprises motor 8,2 oil cylinders 1, electromagnetic valve 7, by pass valve 9, oil pump 10 and energy storages 6, the piston rod of 2 oil cylinders 1 is hinged with the upper end of the main muscle 11 of the bucket body of correspondence respectively, the extension and contraction control skip body of piston rod open or closed.The hydraulic control that adopts is known technology, therefore do not describe in detail.
The hydraulic work system principle is: before operation, start the motor 8 of grab bucket oil pump, oil pump 10 pressure oil output enter energy storage 6, and after the energy storage internal pressure reached default pressure, by pass valve 9 was opened, the pressure oil oil sump tank; During operation, electromagnetic valve 7 is placed in opens (closure) position, oil pump and energy storage are given oil cylinder 1 fuel feeding simultaneously, cylinder piston rod stretches out (retraction) fast, drive bucket body and open (closure), under piston rod stroke reaches (on) after stop, no matter whether electromagnetic valve 7 returns meta, it is standby that the pressure oil of oil pump output all enters energy storage 6.
The present embodiment is general grab bucket.Advantage is:
1, change open and close bucket mode.
Tradition grab bucket is controlled by motor-drg-reductor-reel-steel rope-assembly pulley opened (closing) bucket and change motor-oil pump+energy storage-distributing valve-hydraulic ram into and control and open (closing) bucket, oil cylinder stroke is controlled and is opened (closing) bucket amplitude, does not need inhibiting device; Oil pump electrical machinery power is little, continuous working, when not opening (closing) bucket, the oil pump pressure oil output is stored in energy storage, when opening (closing) bucket, oil pump, energy storage be the oil supply oil supply cylinder simultaneously, centralized release energy, mechanism provides enough power to complete fast corresponding actions to bucket body, energy consumption and the impact of having avoided traditional approach Fraquent start, braking to produce.
2, change the bucket body structure.
During tradition two lobe formula grab bucket crawl goods, bucket is very shallow along injecting goods, and downslide wheels base plate just touches goods, and is very large on the impact of crawl goods; Hydraulic grab is without this mechanism, and piston rod and bucket body hinge-point position are higher, and the grab bucket deadweight is fully used, and makes the identical grab bucket crawl of deadweight quantity of goods different.Utilize raising capacity weight proportion to realize energy-conservation.
3, the tradition grab bucket realizes the open and close bucket by driven by motor reel/steel rope/assembly pulley, easily occurs grab bucket opening deficiency or steel rope when opening bucket and crosses the groove that gets loose, and need rely on limit switch when closing bucket and do guarantee, and operative technique is had relatively high expectations; Hydraulic grab is controlled by oil cylinder stroke and is opened (closing) bucket, accurately and reliably, opens after the action of (closing) bucket completes, even distributing valve does not return meta, does not also affect the normal operation of hydraulic efficiency pressure system and other mechanisms, does not have misoperation.
4, fault rate and maintenance: traditional grab bucket transmission mechanism is complicated, Fraquent start/braking is impacted, misoperation causes steel cable slot disengaging etc., and mechanical breakdown is more, maintenance difficulty is larger; Hydraulic grab is simple in structure, and liquid transmission is steadily reliable, and fault rate is lower without impacting, and accessory is general, independent, changes easy.When tradition grab bucket chance abnormal condition closure-resistive is excessive, because the motor overload ability is very large, easily causes the bucket body distortion or tear; Hydraulic grab maximum close power is constant, and when (depending on default pressure) chance abnormal condition resistance was excessive, by pass valve was opened, and can effectively protect bucket body.
5, the power of motor of tradition grab bucket control open and close bucket is large, and control mechanism is complicated, and frequent starting braking energy consumption is large, and the utility model power of motor is little, continuous working, and energy consumption is little.
Claims (2)
1. energy-efficient electric hydaulic grab bucket, comprise the skip body that is formed by left bucket body (4) and right bucket body (4.1), seat board (5), between left bucket body (4) and right bucket body (4.1) and seat board (5) respectively by connecting rod (3) be connected, connecting rod (3) upper end and seat board (5) hinged, the lower end is hinged with left bucket body (4) and right bucket body (4.1) respectively; Seat board (5) upper end is equipped with lifting assembly pulley 2 or gib head link; Also comprise the control mechanism of controlling the grab bucket motion; It is characterized in that: the control mechanism of described control grab bucket motion is the hydraulic efficiency pressure system with energy storage that is arranged on seat board, hydraulic efficiency pressure system has 2 oil cylinders (1), and the oil cylinder piston club head of the upper end of the main muscle (11) of left bucket body (4) and right bucket body (4.1) and correspondence is hinged.
2. energy-efficient electric hydaulic grab bucket according to claim 1, it is characterized in that: described hydraulic efficiency pressure system comprises motor (8), 2 oil cylinders (1), electromagnetic valve (7), by pass valve (9), oil pump (10) and energy storage (6), the piston rod of 2 oil cylinders is hinged with the upper end of 2 main muscle (11) of the correspondence of bucket body respectively, the extension and contraction control skip body of piston rod open or closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703152 CN202967891U (en) | 2012-12-17 | 2012-12-17 | Energy-efficient electro-hydraulic grab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703152 CN202967891U (en) | 2012-12-17 | 2012-12-17 | Energy-efficient electro-hydraulic grab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202967891U true CN202967891U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220703152 Expired - Fee Related CN202967891U (en) | 2012-12-17 | 2012-12-17 | Energy-efficient electro-hydraulic grab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202967891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018573A (en) * | 2014-06-15 | 2014-09-03 | 湖北三环专用汽车有限公司 | Downhole slag dredging grab bucket mechanism for fecal suction truck |
| CN112897330A (en) * | 2020-12-24 | 2021-06-04 | 恩倍力（昆山）机械有限公司 | Operating system and method of electric hydraulic gripping apparatus in container handling equipment |
-
2012
- 2012-12-17 CN CN 201220703152 patent/CN202967891U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018573A (en) * | 2014-06-15 | 2014-09-03 | 湖北三环专用汽车有限公司 | Downhole slag dredging grab bucket mechanism for fecal suction truck |
| CN104018573B (en) * | 2014-06-15 | 2016-06-15 | 湖北三环专用汽车有限公司 | A kind of fecal suction truck down-hole slag grabbing mechanism |
| CN112897330A (en) * | 2020-12-24 | 2021-06-04 | 恩倍力（昆山）机械有限公司 | Operating system and method of electric hydraulic gripping apparatus in container handling equipment |
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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: 20130605 Termination date: 20151217 |
|
| EXPY | Termination of patent right or utility model |