CN214141258U - Grab bucket of crane - Google Patents
Grab bucket of crane Download PDFInfo
- Publication number
- CN214141258U CN214141258U CN202121868712.7U CN202121868712U CN214141258U CN 214141258 U CN214141258 U CN 214141258U CN 202121868712 U CN202121868712 U CN 202121868712U CN 214141258 U CN214141258 U CN 214141258U
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- Prior art keywords
- clamping
- clamping plate
- plate
- claw
- grab bucket
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- 210000000078 claw Anatomy 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims description 4
- 241000274582 Pycnanthus angolensis Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model discloses a grab bucket of a crane, which comprises a base plate, a clamping jaw, a driver and a single-clamp mechanism; the number of the clamping jaws is two, the two clamping jaws are hinged on the base plate and are symmetrical left and right, the clamping jaws are provided with jaw teeth, the jaw teeth on the left clamping jaw and the right clamping jaw are staggered, and the jaw teeth are hollow; the two drivers respectively drive the two clamping jaws to rotate; the single-clamping mechanism comprises a clamping plate and a middle shaft, the middle shaft is fixed inside the claw teeth, the middle part of the clamping plate is provided with a mounting hole, the clamping plate is sleeved on the middle shaft by the mounting hole and can rotate around the middle shaft, the outer surface of the claw teeth is provided with an inlet and outlet hole, and one end of the clamping plate stretches out of the inlet and outlet hole along with the rotation of the clamping plate; the utility model discloses a grab bucket sets up rotatable splint in the inside of claw tooth, and the distance between the splint in controlling two claw teeth is littleer, and two splint can press from both sides single log when claw tooth reverse motion for the position of single log can also be adjusted to a large amount of logs can be snatched to the grab bucket, convenient and practical.
Description
Technical Field
The utility model relates to a hoist field especially relates to a claw formula grab bucket for hoist.
Background
Fig. 1 shows a prior art claw grab, which includes a base plate, two claws, and a hydraulic cylinder capable of driving the two claws to rotate. The claw type grab bucket is mainly used for grabbing large cylinders such as logs, steel pipes and the like, and a large amount of logs can be fastened after the two claws rotate relatively. The prior art jaws are generally provided with 3-4 teeth, and the teeth on the left and right jaws are staggered with each other, so that the teeth on the left and right jaws can cross each other to reach the extreme position shown in fig. 2. But even when moved to the extreme position as shown in fig. 2, the space between the left and right jaws is larger than the diameter of a normal log, which makes it difficult for the claw grab to pick up one or a small number of logs. In practice, when loading or loading logs, there is often a small amount of top log position skew, and it is difficult to position the skewed individual logs with the prior art claw grab.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that claw formula grab bucket among the prior art is difficult to snatch single or a small amount of log, and is convenient inadequately.
In order to solve the technical problem, the utility model discloses a technical scheme does: a grab bucket of a crane comprises a base plate, a clamping jaw, a driver and a single-clamp mechanism;
the number of the clamping jaws is two, the two clamping jaws are hinged on the base plate and are symmetrical left and right, the clamping jaws are provided with jaw teeth, the jaw teeth on the left clamping jaw and the right clamping jaw are staggered, and the jaw teeth are hollow; the two drivers respectively drive the two clamping jaws to rotate; the grab bucket of the utility model is used for grabbing large cylinders such as logs, and the principle of grabbing a large amount of logs is consistent with the prior art;
the single-clamping mechanism comprises a clamping plate and a middle shaft, the middle shaft is fixed inside the claw teeth, the middle part of the clamping plate is provided with a mounting hole, the clamping plate is sleeved on the middle shaft by the mounting hole and can rotate around the middle shaft, the outer surface of the claw teeth is provided with an inlet and outlet hole, and one end of the clamping plate stretches out of the inlet and outlet hole along with the rotation of the clamping plate;
the utility model discloses a grab bucket can also be used for snatching single log, and the concrete way is: moving the two claws relatively to the limit position, wherein the claw teeth are crossed with each other; then rotating the clamping plate to enable one end of the clamping plate to be protruded out of the claw teeth; and finally, the left and right clamping jaws are separated from each other, the left and right clamping plates are close to each other in the process, and the single log can be clamped by the clamping plates.
Furthermore, the single-clamping mechanism also comprises a driving mechanism, the driving mechanism drives the clamping plate to rotate, the driving mechanism comprises a motor, a driving wheel and a traction rope, the motor drives the driving wheel to rotate, one end of the traction rope is connected with the clamping plate, and the other end of the traction rope is wound on the driving wheel; when the motor drives the driving wheel to rotate, the driving wheel can draw one end of the clamping plate through the traction rope, so that the clamping plate rotates. In most cases, the splints are inside the pawl teeth; only when a single log needs to be clamped, the clamping plates are controlled to come out.
Further, singly press from both sides mechanism still includes first spacing post and the spacing post of second, and first spacing post and the spacing post of second all are located the rotation path of splint, and when splint and the contact of first spacing post, splint lie in claw tooth inside completely, and when splint and the contact of the spacing post of second, the one end of splint is stretched out outside the business turn over hole.
Furthermore, the single-clamping mechanism also comprises a guide wheel, the guide wheel is arranged in the claw teeth, and the traction rope is guided by the guide wheel; one end of the clamping plate is provided with an inclined plate, the included angle between the inclined plate and the clamping plate is 30-50 degrees, and the inclined plate can assist the clamping plate to clamp single logs more stably.
Specifically, the driver is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is hinged with the base plate, a telescopic rod of the hydraulic cylinder is hinged with the clamping jaws, the clamping jaws are provided with a plurality of claw teeth, and all the claw teeth on the left clamping jaw and the right clamping jaw are staggered; the base plate is provided with a connecting plate, and the grab bucket is connected with the crane through the connecting plate; the bottom surface of base plate is provided with the boxboard, and the boxboard is used for protecting the base plate.
Has the advantages that: (1) the utility model discloses a grab bucket sets up rotatable splint in the inside of claw tooth, and the distance between the splint in controlling two claw teeth is littleer, and two splint can press from both sides single log when claw tooth reverse motion for the position of single log can also be adjusted to a large amount of logs can be snatched to the grab bucket, convenient and practical. (2) The utility model discloses a grab bucket sets up actuating mechanism in the inside of claw tooth, ensures that splint are in the inside of claw tooth all the time under non-user state, avoids splint to influence the normal work of claw tooth. (3) The utility model discloses a grab bucket sets up first spacing post and the spacing post of second in the inside of claw tooth, and the rotational position of strict control splint ensures that splint can press from both sides and get single log, also can seal the business turn over hole on the claw tooth under non-user state.
Drawings
Fig. 1 is a block diagram of a prior art grapple.
Fig. 2 is a structural view (limit state) of a prior art grab.
Fig. 3 is a structural view of the grab bucket in embodiment 1.
Fig. 4 is a partial sectional view of the pawl tooth in embodiment 1.
Fig. 5 is a partial sectional view of the pawl tooth in embodiment 1 (another state).
Fig. 6 is (a) an operation state diagram of the grapple in embodiment 1.
Fig. 7 is a diagram (second) showing the operation state of the grapple in embodiment 1.
Wherein: 100. a substrate; 200. a claw; 210. claw teeth; 211. an inlet and outlet hole; 300. a single-clamp mechanism; 310. a splint; 311. a sloping plate; 320. a middle shaft; 330. a first limit post; 340. a second limit post; 350. a guide wheel; 360. a driving wheel; 370. a hauling rope; 400. a connecting plate; 500. a boxboard; 600. a hydraulic cylinder; 700. and (7) log.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1
As shown in fig. 3 and 4, the grab bucket of the crane of the present embodiment includes a base plate 100, a jaw 200, a driver, a single clamp mechanism 300, a connecting plate 400, and a box plate 500;
the number of the clamping jaws 200 is two, the two clamping jaws 200 are hinged on the base plate 100 and are symmetrical left and right, the clamping jaws 200 are provided with jaw teeth 210, the jaw teeth 210 on the left clamping jaw 200 and the right clamping jaw 200 are staggered, and the jaw teeth 210 are hollow; the driver is a hydraulic cylinder 600, the cylinder body of the hydraulic cylinder 600 is hinged with the base plate 100, and the telescopic rod of the hydraulic cylinder 600 is hinged with the clamping jaw 200;
the single clamping mechanism 300 comprises a clamping plate 310, a middle shaft 320, a driving mechanism, a first limiting column 330, a second limiting column 340 and a guide wheel 350, wherein the middle shaft 320 is fixed inside the claw teeth 210, a mounting hole is formed in the middle of the clamping plate 310, the clamping plate 310 is sleeved on the middle shaft 320 through the mounting hole and can rotate around the middle shaft 320, an access hole 211 is formed in the outer surface of the claw teeth 210, and one end of the clamping plate 310 can extend out of the access hole 211 along with the rotation of the clamping plate 310;
the driving mechanism comprises a motor, a driving wheel 360 and a traction rope 370, the motor drives the driving wheel 360 to rotate, one end of the clamping plate 310 is provided with an inclined plate 311 with an included angle of 30 degrees with the clamping plate, one end of the traction rope 370 is connected with the inclined plate 311, and the other end of the traction rope is guided by the guide wheel 350 and then wound on the driving wheel 360; the first and second limiting columns 330, 340 are located on the rotation path of the clamping plate 310, when the clamping plate 310 contacts with the first limiting column 330, the clamping plate 310 is completely located inside the pawl 210, and when the clamping plate 310 contacts with the second limiting column 340, one end of the clamping plate 310 protrudes out of the access hole 211
The base plate 100 is provided with a connecting plate 400, and the grab bucket is connected with a crane through the connecting plate 400; the bottom surface of the substrate 100 is provided with a box plate 500, and the box plate 500 protects the substrate 100.
The grab bucket of the embodiment is mainly used for grabbing large cylindrical objects such as logs 700 and the like, and comprises the specific steps of;
(1) as shown in fig. 3, the hydraulic cylinder 600 drives the two jaws 200 to move relatively to the extreme position, and the teeth 210 on the left and right jaws 200 are crossed; the state of the single-clamping mechanism 300 is shown in fig. 4, and at this time, the driving wheel 360 pulls the clamping plate 310 through the pulling rope 370, so that the inclined plate 311 on the clamping plate 310 contacts with the first limiting column 330, and the whole clamping plate 310 is completely positioned in the claw teeth 210;
(2) as shown in fig. 5, the motor drives the driving wheel 360 to rotate, and the clamping plate 310 rotates under the action of its own weight until one end of the clamping plate 310 contacts with the second limiting column 340; at this time, the sloping plate 311 and the partial clamping plate 310 protrude out of the claw teeth 210, and the whole state of the grab bucket is shown in fig. 6;
(3) the crane drives the whole grab bucket to descend, so that the single log 700 enters between the two clamping plates 310;
(4) the hydraulic cylinder 600 drives the two jaws 200 in opposite directions and the two jaws 310 close to each other as shown in figure 7 to grip the log 700.
The above steps illustrate the steps of the grab bucket of this embodiment gripping the singles log 700, and the operation mode is mainly used for adjusting the position of the singles log 700 in the actual operation; the grab bucket of this embodiment can also once only snatch a large amount of logs 700 like normal grab bucket, and concrete method is unanimous with prior art, no longer repeated.
Although the embodiments of the present invention have been described in the specification, these embodiments are only for the purpose of presentation and should not be construed as limiting the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A grab bucket of a crane is characterized in that: comprises a substrate (100), a claw (200), a driver and a single clamping mechanism (300);
the number of the clamping jaws (200) is two, the two clamping jaws (200) are hinged on the base plate (100) and are symmetrical left and right, the clamping jaws (200) are provided with claw teeth (210), the claw teeth (210) on the left clamping jaw and the right clamping jaw (200) are staggered, and the claw teeth (210) are hollow; the two drivers respectively drive the two clamping jaws (200) to rotate;
the single-clamping mechanism (300) comprises a clamping plate (310) and a middle shaft (320), the middle shaft (320) is fixed inside the claw teeth (210), a mounting hole is formed in the middle of the clamping plate (310), the clamping plate (310) is sleeved on the middle shaft (320) through the mounting hole, an access hole (211) is formed in the outer surface of the claw teeth (210), and one end of the clamping plate (310) stretches out of the access hole (211) along with rotation of the clamping plate (310).
2. The grab bucket of a crane according to claim 1, wherein: the single clamp mechanism (300) further comprises a driving mechanism which drives the clamping plate (310) to rotate.
3. The grab bucket of a crane according to claim 2, wherein: the driving mechanism comprises a motor, a driving wheel (360) and a traction rope (370), the motor drives the driving wheel (360) to rotate, one end of the traction rope (370) is connected with the clamping plate (310), and the other end of the traction rope is wound on the driving wheel (360).
4. The grab of crane according to claim 3, wherein: the single-clamp mechanism (300) further comprises a first limiting column (330) and a second limiting column (340), and the first limiting column (330) and the second limiting column (340) are both positioned on the rotating path of the clamping plate (310); the clamping plate (310) is in contact with the first limiting column (330), and the clamping plate (310) is completely positioned inside the claw teeth (210); the clamping plate (310) is in contact with the second limiting column (340), and one end of the clamping plate (310) extends out of the access hole (211).
5. The grab of crane of claim 4, in which: the single clamping mechanism (300) further comprises a guide wheel (350), the guide wheel (350) is installed inside the claw teeth (210), and the traction rope (370) is guided by the guide wheel (350).
6. The grab bucket of a crane according to claim 5, wherein: one end of the clamping plate (310) is provided with an inclined plate (311), and the included angle between the inclined plate (311) and the clamping plate (310) is 30-50 degrees.
7. The grab bucket of a crane according to claim 1, wherein: the driver is a hydraulic cylinder (600), the cylinder body of the hydraulic cylinder (600) is hinged to the base plate (100), and the telescopic rod of the hydraulic cylinder (600) is hinged to the clamping jaw (200).
8. The grab bucket of a crane according to claim 1, wherein: the number of the claw teeth (210) on the claw (200) is multiple, and all the claw teeth (210) on the left claw (200) and the right claw (200) are staggered.
9. The grab bucket of a crane according to claim 1, wherein: the base plate (100) is provided with a connecting plate (400), and the grab bucket is connected with the crane through the connecting plate (400).
10. The grab bucket of a crane according to claim 1, wherein: the bottom surface of the base plate (100) is provided with a box plate (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121868712.7U CN214141258U (en) | 2021-08-11 | 2021-08-11 | Grab bucket of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121868712.7U CN214141258U (en) | 2021-08-11 | 2021-08-11 | Grab bucket of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214141258U true CN214141258U (en) | 2021-09-07 |
Family
ID=77554424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121868712.7U Active CN214141258U (en) | 2021-08-11 | 2021-08-11 | Grab bucket of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214141258U (en) |
-
2021
- 2021-08-11 CN CN202121868712.7U patent/CN214141258U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231013 Address after: 116000 Xinzhaizi Street, Tianhong Development Zone Xinping Street, Ganjingzi District, Dalian City, Liaoning Province Patentee after: Dalian Hongcheng Electromechanical Equipment Engineering Co.,Ltd. Address before: 410200 No. 2710, floor 27, building 4, Jinqiao market cluster 3, south of Purui West Road, Wangcheng economic and Technological Development Zone, Changsha, Hunan Patentee before: Hunan Jiji Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |