CN202831037U - Hydraulic grab - Google Patents
Hydraulic grab Download PDFInfo
- Publication number
- CN202831037U CN202831037U CN 201220471647 CN201220471647U CN202831037U CN 202831037 U CN202831037 U CN 202831037U CN 201220471647 CN201220471647 CN 201220471647 CN 201220471647 U CN201220471647 U CN 201220471647U CN 202831037 U CN202831037 U CN 202831037U
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- CN
- China
- Prior art keywords
- hydraulic
- grab
- bucket lobe
- lobe
- oil pump
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Abstract
The utility model relates to a remote control grab, in particular to a hydraulic grab. The hydraulic grab comprises a bracket as an installation part arranged on a vehicle body, an equalizing beam connected with the bracket, support rods rotatably connected on the end portions of the equalizing beam, grab sections connected with the support rods, a piston tube and a piston rod both connected between the grab sections and the equalizing beam. An oil cylinder, a motor hydraulic oil pump set and a hydraulic control valve set are arranged inside the piston tube, the oil cylinder, the motor hydraulic oil pump set and the hydraulic control valve set carry out the opening/closing of the grab sections, and the motor hydraulic oil pump set is connected with the hydraulic control valve set. The grab sections comprise a left grab section and a right grab section which are arranged in opposite directions. One end of the piston rod is connected with the equalizing beam, the other end of the piston tube is connected with one end portions of pull rods through the piston rod, and the other ends of the pull rods are connected with the grab sections. When the piston rod expands and contracts, the pull rods and the left grab section and the right grab section connected with the pull rods are driven to open or close.
Description
Technical field
The utility model relates to the remote control grab bucket, is specifically related to a kind of hydraulic grab.
Background technology
Grab bucket is right two suspenders that make up the folding crawl of bucket or a plurality of jaws and draw off bulk material that keep left, and also is gripper by the grab bucket that a plurality of jaws form, and is widely used in the occasions such as disintegration of material handling, old building.It can be divided into fluid pressure type grab bucket and mechanical type grab bucket two large classes by type of drive.Wherein, the fluid pressure type grab bucket itself is equipped with opening-closing structure, generally drives with hydraulic jack, also is the hydraulic pressure pawl by the fluid pressure type grab bucket that a plurality of jaws form.Hydraulic grab is used more extensive in hydraulic pressure class special equipment, such as hydraulic crawler excavator, Hydraulic for lifting load tower etc.
In the prior art, when crawl powdery and graininess bulk material (such as chemical fertilizer, grain, coal, coke, ore in sand form, yellow sand, graininess building materials and rubble etc.), existing hydraulic grab can't realize that complete closure tightens up, and makes troubles to the staff.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of hydraulic grab is provided, and the bucket lobe of existing grab bucket improved, thereby realize that complete closure tightens up.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is, a kind of hydraulic grab, comprise as the carriage that is installed to the installation portion on the vehicle body, the equalizer bar that is connected with carriage, rotate the strut of the end that is connected to freely equalizer bar, the bucket lobe that is connected with strut, and be connected to piston tube and the piston rod that struggles against between lobe and the equalizer bar.Be provided with oil cylinder, motor hydraulic oil pump group and the hydraulic control valve group of the opening of the lobe that struggles against/closing motion in the described piston tube, described motor hydraulic oil pump group is connected with the hydraulic control valve group.Described bucket lobe comprises left part bucket lobe and right part bucket lobe, and left part bucket lobe and right part bucket lobe arrange in opposite directions.One end of described piston tube connects equalizer bar, and the other end of described piston tube is by an end of piston rod cylinder lever connecting rod, the other end connection bucket lobe of pull bar; When described piston rod stretches, the left part bucket lobe and the folding of right part bucket lobe that drive pull bar and be connected with pull bar, thus realization is to the loading and unloading of goods.
Further, the contact surface of described left part bucket lobe and right part bucket lobe is respectively equipped with weather strip, is difficult for unrestrained during the lobe that can guarantee to struggle against crawl material.Preferably, the sealing bar is rubber weather strip.
Further, described piston tube outer wall also is equipped with oil nozzle.
Further, described motor hydraulic oil pump group comprises motor and hydraulic oil pump.Wherein motor adopt to exchange the Y-series threephase asynchronous, is the standard series product, has efficient height, power factor (PF), startability is good, noise is low, the characteristics such as reliable operate steadily.Hydraulic oil pump is variable pump.Described power of motor is generally at 8.5 kw～55 kw.
Further, in the above-mentioned parts, the bearing pin of each hinged point all is to be made by the high-performance anti-corrosion material, guarantees for a long time the bearing pin operational reliability in a long time in the grab bucket of the larger environment operation of corrosivity.
The utility model arranges respectively weather strip by the contact surface at left part bucket lobe and right part bucket lobe, realizes that the complete closure of left part bucket lobe and right part bucket lobe is tightened up, applicable to the operation occasion of crawl powdery and graininess bulk material.
Description of drawings
Fig. 1 is the schematic diagram of embodiment of the present utility model.
The specific embodiment
Now with the specific embodiment the utility model is further specified by reference to the accompanying drawings.
As a specific embodiment, as shown in Figure 1, a kind of hydraulic grab of the present utility model, comprise as the carriage 1 that is installed to the installation portion on the vehicle body, the equalizer bar 2 that is connected with carriage 1, rotate the strut 3 of the end that is connected to freely equalizer bar 2, the bucket lobe 4 that is connected with strut 3, and be connected to piston tube 5 and the piston rod 6 that struggles against between lobe 4 and the equalizer bar 3.
Be provided with oil cylinder, motor hydraulic oil pump group and the hydraulic control valve group of the opening of the lobe 4 that struggles against/closing motion in the described piston tube 5, described motor hydraulic oil pump group is connected with the hydraulic control valve group.Described piston tube 5 outer walls also are equipped with two oil nozzles 8.Described motor hydraulic oil pump group comprises motor and hydraulic oil pump.Wherein motor adopt to exchange the Y-series threephase asynchronous, is the standard series product, has efficient height, power factor (PF), startability is good, noise is low, the characteristics such as reliable operate steadily.Hydraulic oil pump is variable pump.Described power of motor is generally at 8.5 kw～55 kw.
Described bucket lobe 4 comprises left part bucket lobe 41 and right part bucket lobe 42, and left part bucket lobe 41 and right part bucket lobe 42 arrange in opposite directions.The contact surface of described left part bucket lobe 41 and right part bucket lobe 42 is respectively equipped with rubber weather strip, is difficult for unrestrained during the lobe that can guarantee to struggle against crawl material.
One end of described piston tube 6 connects equalizer bar 2, and the other end of described piston tube 5 is by an end of piston rod 6 cylinder lever connecting rods 7, the other end connection bucket lobe 4 of pull bar 7.
When piston rod 6 stretches, the left part bucket lobe 41 and 42 foldings of right part bucket lobe that drive pull bar 7 and be connected with pull bar 7, thus realization is to the loading and unloading of goods.
In the above-mentioned parts, the bearing pin of each hinged point all is to be made by the high-performance anti-corrosion material, guarantees for a long time the bearing pin operational reliability in a long time in the grab bucket of the larger environment operation of corrosivity.The utlity model has good practicality.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection domain of the present utility model.
Claims (6)
1. hydraulic grab is characterized in that:
Comprise as the carriage that is installed to the installation portion on the vehicle body, the equalizer bar that is connected with carriage, rotation is connected to the strut of the end of equalizer bar freely, the bucket lobe that is connected with strut, and be connected to piston tube and the piston rod that struggles against between lobe and the equalizer bar;
Be provided with oil cylinder, motor hydraulic oil pump group and the hydraulic control valve group of the opening of the lobe that struggles against/closing motion in the described piston tube, described motor hydraulic oil pump group is connected with the hydraulic control valve group;
Described bucket lobe comprises left part bucket lobe and right part bucket lobe, and left part bucket lobe and right part bucket lobe arrange in opposite directions;
One end of described piston tube connects equalizer bar, and the other end of described piston tube is by an end of piston rod cylinder lever connecting rod, the other end connection bucket lobe of pull bar; When described piston rod stretches, the left part bucket lobe and the folding of right part bucket lobe that drive pull bar and be connected with pull bar.
2. a kind of hydraulic grab according to claim 1, it is characterized in that: described left part bucket lobe and described right part bucket lobe all are the C character form structure.
3. a kind of hydraulic grab according to claim 1 and 2, it is characterized in that: the contact surface of described left part bucket lobe and right part bucket lobe is respectively equipped with weather strip.
4. a kind of hydraulic grab according to claim 3, it is characterized in that: described weather strip is rubber weather strip.
5. a kind of hydraulic grab according to claim 1, it is characterized in that: described piston tube outer wall also is equipped with oil nozzle.
6. a kind of hydraulic grab according to claim 1, it is characterized in that: described motor hydraulic oil pump group comprises motor and hydraulic oil pump, and described hydraulic oil pump is variable pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220471647 CN202831037U (en) | 2012-09-14 | 2012-09-14 | Hydraulic grab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220471647 CN202831037U (en) | 2012-09-14 | 2012-09-14 | Hydraulic grab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202831037U true CN202831037U (en) | 2013-03-27 |
Family
ID=47942782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220471647 Expired - Fee Related CN202831037U (en) | 2012-09-14 | 2012-09-14 | Hydraulic grab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202831037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002873A (en) * | 2015-07-26 | 2015-10-28 | 安庆市港机制造有限责任公司 | Double-rope grab bucket used for cleaning up aquatic plants |
| CN111236337A (en) * | 2020-03-06 | 2020-06-05 | 中交天津航道局有限公司 | Flat digging device for earth-moving machine |
-
2012
- 2012-09-14 CN CN 201220471647 patent/CN202831037U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002873A (en) * | 2015-07-26 | 2015-10-28 | 安庆市港机制造有限责任公司 | Double-rope grab bucket used for cleaning up aquatic plants |
| CN111236337A (en) * | 2020-03-06 | 2020-06-05 | 中交天津航道局有限公司 | Flat digging device for earth-moving machine |
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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: 20130327 Termination date: 20140914 |
|
| EXPY | Termination of patent right or utility model |