CN101863417A - Grab bucket and grab trolley - Google Patents
Grab bucket and grab trolley Download PDFInfo
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- CN101863417A CN101863417A CN200910134357A CN200910134357A CN101863417A CN 101863417 A CN101863417 A CN 101863417A CN 200910134357 A CN200910134357 A CN 200910134357A CN 200910134357 A CN200910134357 A CN 200910134357A CN 101863417 A CN101863417 A CN 101863417A
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- pawl
- grab bucket
- shell
- main body
- grab
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Abstract
The invention provides a grab bucket, which comprises a bracket, an oil cylinder, and a claw consisting of a claw main body and a claw shell. The claw is driven by stretching the oil cylinder so as to carry objects. The grab bucket is characterized in that: the claw shell can be arranged on the claw main body in a detachable mode. As long as claw shells with different shapes are prepared, the coverage rate of the grab bucket can be changed by changing the claw shells. Therefore, various objects can be transported. In addition, when the claw shell needs to be maintained or changed due to severe abrasion or damage, only the shell is maintained or changed.
Description
Technical field
The present invention relates to grab bucket and grab trolley.
Background technology
Grab trolley is widely used in the disintegration of material handling, old building etc.Grab trolley comprises vehicle body 1, swing arm 11, dipper 10 and grabs bucket 3 as shown in Figure 1.In the prior art, grab bucket 3 comprises support 2, oil cylinder 3c and the pawl that is made of pawl main body 3a and pawl shell 3b as shown in Figure 2, and its median claw main body 3a and pawl shell 3b are weld togethers.By oil cylinder stretch driving claw, thereby carry out the pick-and-place action.
In real work, different grab buckets is fit to the different material of carrying, and so-called here difference is the difference of the shape of paw, more particularly is the difference of paw shell shape.This be because, if the less material of carrying sand equal-volume, then need the higher grab bucket of coverage rate of pawl shell, it is the less grab bucket in space between the pawl shell afterwards of pawl closure, if but during the bigger material of carrying steel pipe, building stones equal-volume, need the lower grab bucket of coverage rate of pawl shell, i.e. the bigger grab bucket in space between the pawl shell after the pawl closure.Owing to need the material of carrying varied, therefore need the different multiple grab bucket of pawl shell shape.
At therewith, open the Japanese patent gazette spy and to disclose the grab bucket of controlling the coverage rate of pawl by driving claw optionally in 2004-277035 number.Promptly when the less material of carrying sand equal-volume, drive all pawls, make all pawl closures, and when the bigger material of carrying steel pipe, building stones equal-volume, make the part pawl be in open configuration all the time, only closed a part of pawl is controlled the coverage rate of pawl thus.But the material that is fit to this grab bucket carrying also is limited, needs the different multiple grab bucket of pawl shell shape in the real work.And if prepare multi-form grab bucket, then can increase a lot of equipment costs.
In addition, because the pawl shell directly contacts with material, therefore wearing and tearing or damage easily often need be repaired by welding one block plate on the pawl shell of wearing and tearing or damage in the real work, but in wearing and tearing or damage and to change whole pawl when serious, thereby increased the maintenance cost of equipment.
Summary of the invention
The present invention be directed to the problems referred to above and implement, thereby its purpose is to provide a kind of coverage rate that can change pawl easily can enough tackle the grab bucket of various carrying materials easily.Another object of the present invention is to provide a kind of grab bucket of when wearing and tearing of pawl shell or damage, being convenient to keep in repair and can reduce cost of equipment maintenance.
Grab bucket of the present invention comprises support, oil cylinder and the pawl that is made of pawl main body and pawl shell, by oil cylinder stretch driving claw, thereby carry out pick-and-place, it is characterized in that described pawl shell is installed on the described pawl main body in the mode that can dismantle.
In addition, pawl trolley of the present invention is characterised in that and possesses grab bucket of the present invention.
According to the present invention, can change the coverage rate of grab bucket by changing the pawl shell, thereby can tackle various carrying materials easily.In addition, owing to pawl shell wearing and tearing or damage seriously need repairing or when changing, only maintenance or change shell and get final product.Therefore be convenient to maintenance, and can reduce cost of equipment maintenance.
Description of drawings
Fig. 1 is the scheme drawing of grab trolley;
Fig. 2 is the scheme drawing of grab bucket of the prior art;
Fig. 3 is the scheme drawing of a pawl of the grab bucket of the embodiment of the invention 1.
Fig. 4 is the present invention's scheme drawing of a pawl of the grab bucket of embodiment 2 again
The specific embodiment
Invention is described in detail to this reality below in conjunction with accompanying drawing.
Embodiment 1
The keystone configuration of the grab bucket of present embodiment with have technology the same now, comprise support, oil cylinder and the pawl that constitutes by pawl main body and pawl shell, by oil cylinder stretch driving claw, thereby carry out pick-and-place.The present embodiment improvements over the prior art are the improvement to the pawl of grab bucket.Fig. 3 is the scheme drawing of a pawl of the grab bucket of the embodiment of the invention 1.As shown in Figure 3, the pawl of present embodiment is made of pawl main body 3a and pawl shell 3b, and the head of pawl main body, root and substantial middle position have through hole 3e, 3f, 3g respectively.Pawl shell 3b is provided with cylindrical projections 3h, the 3i that is welded on the shell with above-mentioned through hole 3g, the corresponding part of 3f.The center of cylindrical projections 3h, 3i is provided with tapped bore (not shown).Pawl shell 3b is provided with tapped bore 3j with the corresponding part of above-mentioned through hole 3e.During installation, cylindrical projections 3h, 3i are inserted among through hole 3g, the 3f, and fix, tapped bore 3j is aimed at through hole 3e then fix with screw rod 3m with the diameter of head screw rod 3k, 3n greater than through hole 3g, 3f.When needing repairing or change, can unload the lower claw shell after screw rod 3k, 3n, 3m unloaded.
According to present embodiment, as long as prepare variform pawl shell, just can change the coverage rate of grab bucket by replacing pawl shell, thereby can tackle easily as the pick-and-place object, different various carrying materials such as shape or size.In addition, owing to pawl shell wearing and tearing or damage seriously need repairing or when changing, only need unload the lower claw shell and repair or replace and get final product from the pawl main body.Therefore be convenient to maintenance, and can reduce cost of equipment maintenance.
In the present embodiment, the material of pawl shell is different with the material of pawl main body, the material of pawl shell be the material of HT60 or WELTEN60, pawl main body be resistance to abrasion be better than the pawl shell, high strength material ScMn2B.Can when reducing material cost, improve the intensity of pawl main body with whole the comparing with the situation of high strength material entirely of pawl like this, thereby reduce the frequency of maintenance of pawl main body.In addition, utilization can be welded the material of iron block and be made the pawl shell, thereby can come the shell of being changed is repaired by the welding iron block, utilizes again.
In addition, the cylindrical projections of present embodiment median claw shell can be the projection of other shape, as long as the pawl main body is provided with shape through hole cooresponding with it.
The following describes another embodiment of the present invention.Except the pawl of grab bucket, the other parts of present embodiment are identical with embodiment 1 and prior art, omit explanation here.Fig. 4 is the scheme drawing of a pawl of the grab bucket of present embodiment.As shown in Figure 4, the pawl of present embodiment is made of pawl main body 4a and pawl shell 4b.Pawl shell 4b is made of pawl case head 4ba and the outer 4bb of body portion of pawl, both material differences, and pawl case head 4ba uses 35CrMo, and the outer 4bb of body portion of pawl uses HT60 or WELTEN60.Head is worn or damages with respect to body portion is easier in the pawl shell, therefore with pawl case head and pawl outward body portion separate, the material 35CrMo that working strength is higher can prolong life-span of pawl shell.
Pawl case head 4ba is provided with 4 tapped bore 4j, is provided with 4 through hole 4g in the part cooresponding with it of pawl main body 4a, during installation, these 4 tapped bore 4j is aimed at the back fix with 4 screw rod 4m with 4 through hole 4g.Root and the substantial middle position of the outer 4bb of body portion of pawl are respectively equipped with cylindrical projections 4h, 4i, the center of cylindrical projections 4h, 4i is provided with tapped bore (not shown), be provided with through hole 4e, 4f at pawl main body 4a with this cylindrical projections 4h, the corresponding part of 4i, during installation, cylindrical projections 4h, 4i are inserted among through hole 4e, the 4f, and fix with the diameter of head screw rod 4k, 4n greater than through hole 4e, 4f.In addition, as shown in Figure 4, in the present embodiment, the position of close the cylindrical projections 4h of the outer 4bb of body portion of pawl and the position of close pawl case head 4ba are respectively equipped with two diameters and length all less than the columniform locator protrusions 5h of cylindrical projections 4h, 4i.Be respectively equipped with 4 shapes and this 4 corresponding detents of locator protrusions 5h (not shown) at pawl main body 4a with these 4 cooresponding positions of locator protrusions 5h.In addition, the root of pawl main body 4a with pawl outside the cooresponding position of root of the 4bb of body portion be provided with the root shape corresponding groove (not shown) of the 4bb of body portion outside shape and the pawl.During installation, 4 locator protrusions 5h are inserted in 4 detents, and the root of the outer 4bb of body portion of pawl is embedded in this groove.The pawl shell can be installed on the preposition exactly like this, thereby reduce the set-up time.
According to present embodiment, can change the coverage rate of grab bucket by changing the pawl shell, thereby can tackle easily as the pick-and-place object, different various carrying materials such as shape or size.In addition, owing to pawl shell wearing and tearing or damage seriously need repairing or when changing, only need unload the lower claw shell and repair or replace and get final product from the pawl main body.Therefore be convenient to maintenance, and can reduce cost of equipment maintenance.
In addition, compare with embodiment 1, present embodiment can optionally be changed the outer 4bb of body portion of pawl case head 4ba or pawl as required, and the pawl shell can be installed on the preposition exactly, thereby reduces the set-up time.
In addition, the locator protrusions of embodiment median claw shell can be the projection of other shape, as long as the pawl main body is provided with detent cooresponding with it.
In addition, the quantity of the locator protrusions of present embodiment is not limited to 4, can be still less or more, and the position of locator protrusions also is not limited to the position shown in Fig. 4.
Claims (10)
1. grab bucket comprises support, oil cylinder and the pawl that is made of pawl main body and pawl shell, by oil cylinder stretch driving claw, thereby carry out pick-and-place, it is characterized in that,
Described pawl shell is installed on the described pawl main body in the mode that can dismantle.
2. grab bucket according to claim 1 is characterized in that, described pawl shell is made of pawl case head and the outer body portion of pawl, and the outer body portion of described pawl case head and pawl is installed on the described pawl main body in the mode that can dismantle respectively.
3. grab bucket according to claim 1 and 2 is characterized in that, described pawl main body is different with the material of pawl shell.
4. grab bucket according to claim 3 is characterized in that, the intensity height of the material of the described pawl shell of the intensity ratio of the material of described pawl main body.
5. grab bucket according to claim 2 is characterized in that, described pawl case head is different with the material of the outer body portion of pawl.
6. grab bucket according to claim 5 is characterized in that, the intensity height of the material of the outer body portion of the described pawl of the intensity ratio of the material of described pawl case head.
7. grab bucket according to claim 1 and 2 is characterized in that, described pawl shell is provided with projection, the center of this projection is provided with tapped bore, described pawl main body be provided with through hole with the cooresponding position of above-mentioned projection, described projection is inserted described through hole inside, and utilizes screw rod to fix.
8. grab bucket according to claim 7, it is characterized in that, also be provided with locator protrusions on the described pawl shell, described pawl main body be provided with shape and the cooresponding detent of this locator protrusions with the cooresponding position of described locator protrusions, described locator protrusions inserts in the described detent.
9. grab bucket according to claim 8 is characterized in that, the cooresponding position of the root with described pawl shell of described root in the pawl main body is provided with the root shape corresponding groove of shape and pawl shell, and the root of pawl shell embeds in this groove.
10. a grab trolley comprises vehicle body, swing arm, dipper and grab bucket, it is characterized in that, described grab bucket is any described grab bucket in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910134357A CN101863417A (en) | 2009-04-14 | 2009-04-14 | Grab bucket and grab trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910134357A CN101863417A (en) | 2009-04-14 | 2009-04-14 | Grab bucket and grab trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101863417A true CN101863417A (en) | 2010-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910134357A Pending CN101863417A (en) | 2009-04-14 | 2009-04-14 | Grab bucket and grab trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101863417A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588086A (en) * | 2013-11-22 | 2014-02-19 | 上海佩纳沙士吉打机械有限公司 | Four-cable eight-piece nickel mineral grab bucket |
| CN104140039A (en) * | 2013-05-07 | 2014-11-12 | 株式会社水山重工业 | Single-air-cylinder working type orange-slice-shaped grab bucket |
-
2009
- 2009-04-14 CN CN200910134357A patent/CN101863417A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140039A (en) * | 2013-05-07 | 2014-11-12 | 株式会社水山重工业 | Single-air-cylinder working type orange-slice-shaped grab bucket |
| CN103588086A (en) * | 2013-11-22 | 2014-02-19 | 上海佩纳沙士吉打机械有限公司 | Four-cable eight-piece nickel mineral grab bucket |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20101020 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |