CN214497665U - Hydraulic thumb clamp of excavator - Google Patents
Hydraulic thumb clamp of excavator Download PDFInfo
- Publication number
- CN214497665U CN214497665U CN202120445158.5U CN202120445158U CN214497665U CN 214497665 U CN214497665 U CN 214497665U CN 202120445158 U CN202120445158 U CN 202120445158U CN 214497665 U CN214497665 U CN 214497665U
- Authority
- CN
- China
- Prior art keywords
- clamp
- excavator
- fixing hole
- hydraulic cylinder
- fixed base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Shovels (AREA)
Abstract
The utility model relates to a handling equipment field especially indicates an excavator hydraulic pressure thumb presss from both sides, and this thumb presss from both sides including unable adjustment base, clamp and pneumatic cylinder. The fixed base is fixedly connected to a movable arm of the excavator. One end of the clamp is provided with a clamping jaw, one end of the clamp, which is far away from the clamping jaw, and the hydraulic cylinder are respectively pivoted to two ends of the fixed base, wherein the clamp is connected to one end, which is close to a bucket of the excavator, of the fixed base, and a piston rod of the hydraulic cylinder is also pivoted with the clamp. When the material clamping device is used, the piston rod of the hydraulic cylinder is controlled to stretch, so that the clamp swings relative to a bucket of the excavator, and the material can be clamped. When the hydraulic excavator is not used, the piston rod of the control hydraulic cylinder keeps a retraction state, so that the clamp can be kept attached to the side face of the movable arm of the excavator, and the normal excavating use of the excavator is not influenced. Therefore, the installation the utility model discloses the transport function of expanded excavation makes the excavator have the centre gripping concurrently and excavates two kinds of operating condition, is favorable to extending the application range of excavator.
Description
Technical Field
The utility model relates to a handling equipment field especially indicates an excavator hydraulic pressure thumb presss from both sides.
Background
Excavators are common excavating machines, also called excavators, which generally excavate materials above or below a machine bearing surface with a bucket, such as earth, coal, silt, and soil and rock after pre-loosening, and load them into a transport vehicle or unload them to a stockyard. In view of the development of construction machines in recent years, the development of excavators is relatively fast, and the excavator has become one of the most important construction machines in construction.
However, the existing excavator only has the function of excavating and carrying fine materials, and the bucket of the excavator is difficult to carry or bear long-strip materials, such as reinforcing steel bars or straw, and the carrying capacity is limited.
Disclosure of Invention
Not enough to above-mentioned background art provides, the utility model provides an excavator hydraulic pressure thumb presss from both sides.
The utility model adopts the following technical scheme:
a hydraulic thumb clamp of an excavator is characterized by comprising:
the thumb clamp comprises:
the fixed base is fixedly connected to a movable arm of the excavator;
the clamp comprises a clamp, wherein one end of the clamp is provided with a clamping jaw;
a hydraulic cylinder;
the end, far away from the clamping jaw, of the clamp and the hydraulic cylinder are respectively pivoted to two ends of the fixed base, the clamp is connected to one end, close to a bucket of the excavator, of the fixed base, and the tail end of a piston rod of the hydraulic cylinder is also pivoted with the clamp; when a piston rod of the hydraulic cylinder extends out, the clamp is driven to swing to the clamping jaw to be close to the bucket, and when the piston rod of the hydraulic cylinder retracts, the clamp is driven to swing to the clamping jaw to be close to the fixed base.
As a further improvement, a lock seat is fixed in the middle of the fixed base, a lock plate perpendicular to the fixed base is arranged on the side edge of the lock seat, a first fixing hole penetrates through the side face of the lock plate, and a bolt is inserted into the first fixing hole; the side face of the clamp is provided with a second fixing hole, when a piston rod of the hydraulic cylinder retracts to drive the clamp to swing until the clamping jaw is close to the fixing base, the second fixing hole corresponds to the first fixing hole, and the bolt penetrates through the first fixing hole and the second fixing hole.
As a further improvement, the bolt is a bolt, and the bolt is screwed with a nut after passing through the first fixing hole and the second fixing hole.
As a further improvement, a connecting sleeve is fixed on one side of the locking plate away from the middle of the fixed base, the bolt sequentially penetrates through the connecting sleeve and the first fixing hole, and a spring is sleeved on the part of the bolt in the connecting sleeve; the outer side of the plug pin, which is close to the middle position in the axial direction, is provided with a baffle ring, and the spring is positioned between the baffle ring and the inner wall of the connecting sleeve; the first fixing hole and the second fixing hole are rectangular through holes, the end face of the tail end of the bolt is a rectangular protrusion, and the rectangular protrusion is matched with and penetrates through the second fixing hole.
As a further improvement, the clamp comprises clamp plates on two sides and a plurality of connecting plates, and two sides of each connecting plate are fixedly connected with the two clamp plates respectively, so that a hollow structure is formed between the two clamp plates.
As a further improvement, the tail ends of the two nipper plates are fixedly connected with the clamping jaws, and when a piston rod of the hydraulic cylinder extends out to drive the clamp to swing until the clamping jaws are close to the bucket, the two clamping jaws are embedded into two adjacent shovel grooves of the bucket.
As a further improvement, the clamp side view is an arc-shaped structure.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: will the utility model discloses after the installation is fixed to the swing arm of excavator, during the use, through control the flexible of the piston rod of pneumatic cylinder makes the relative scraper bowl swing of excavator of clamp can form the action to material (for example reinforcing bar or straw) centre gripping. When the clamp is not used, the piston rod of the control hydraulic cylinder keeps a retracted state, so that the clamp can be kept attached to the side face of the movable arm of the excavator, and the normal excavating use of the excavator is not influenced. Therefore, the installation the utility model discloses the transport function of expanded excavation makes the excavator have the centre gripping concurrently and excavates two kinds of operating condition, is favorable to extending the application range of excavator.
Drawings
Fig. 1 is a schematic side view of the utility model fixed to the movable arm of the excavator and under the normal excavating state of the excavator.
Fig. 2 is a schematic perspective view of the clamp swinging to be attached to the fixing base.
Fig. 3 is a schematic side view of the present invention fixed to the movable arm of the excavator and the clamp in the working state.
Fig. 4 is a schematic perspective view of the clamp and the bucket forming a clamping action in connection with the boom according to the present invention.
Fig. 5 is a schematic perspective view of the clamp swinging to form the clamping action.
Fig. 6 is a sectional structure diagram of embodiment 1 of the clamp and the lock base fixing.
Fig. 7 is a sectional structure diagram of embodiment 2 of the clamp and the lock base fixing.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in figure 2, the hydraulic thumb clamp of the excavator comprises a fixed base 2, a clamp 3 and a hydraulic cylinder 4.
As shown in fig. 3 and 4, the fixed base 2 is fixedly connected to a boom 11 of the excavator, and a length direction of the fixed base 2 is parallel to a length direction of the boom 11 of the excavator, such that one end of the fixed base 2 is close to a bucket 12 of the excavator and the other end is far away from the bucket 12 of the excavator. The fixing in this embodiment may be by welding or by bolting.
As shown in fig. 2 and 5, the clamp 3 includes two clamp plates 31 and a plurality of connecting plates 32, the ends of the two clamp plates 31 are fixedly connected to a clamping jaw 33, and two sides of each connecting plate 32 are respectively fixedly connected to the two clamp plates 31 and connected to the same side of the two clamp plates 31, so that a hollow structure is formed between the two clamp plates 31.
One end of the clamp 3, which is far away from the clamping jaw 33, and the hydraulic cylinder 4 are respectively pivoted to two ends of the fixed base 2, wherein the clamp 3 is connected to one end of the fixed base 2, which is close to a bucket 12 of an excavator, and the tail end of a piston rod 41 of the hydraulic cylinder 4 is also pivoted with the clamp 3. Referring to fig. 3 and 4, when the piston rod 41 of the hydraulic cylinder 4 extends, the clamp 3 is driven to swing until the clamping jaws 33 lean against the bucket 12, and the two clamping jaws 33 are embedded into the two adjacent shovel grooves 121 of the bucket 12, so that the clamp 3 and the bottom of the bucket 12 can be completely closed, and the clamped materials are prevented from falling. Further, the nipper 31 has an arc structure, so that the whole side of the nipper 3 is regarded as an arc structure, and this structure enables a larger gap to be formed between the nipper 3 and the bucket 12 for clamping more materials, so that the clamped materials are inserted into the gap. Referring to fig. 1 and 2 again, when the piston rod 41 of the hydraulic cylinder 4 retracts, the clamp 3 is driven to swing until the clamping jaw 33 approaches the fixed base 2, and the hollow structure of the clamp 3 can accommodate the hydraulic cylinder 4, which is equivalent to that the clamp 3 can be used as a protective cover for the hydraulic cylinder 4 to protect the hydraulic cylinder 4.
As shown in fig. 5 and 6, a lock seat 21 is further fixed in the middle of the fixing base 2, a lock plate 211 perpendicular to the fixing base 2 is disposed on a side of the lock seat 21, and the lock plate 211 is located outside the side of the fixing base 2. The side of the locking plate 211 is further provided with a first fixing hole 212 penetrating through, and the first fixing hole 212 is inserted with the bolt 5. The side of the nipper 31 of the clamp 3 is provided with a second fixing hole 311, when the piston rod 41 of the hydraulic cylinder 4 retracts to drive the clamp 3 to swing to the position where the clamping jaw 33 leans against the upper end of the fixing base, the second fixing hole 311 corresponds to the first fixing hole 312, the bolt 5 penetrates through the first fixing hole 212 and the second fixing hole 311, the clamp 3 is kept fixed to lean against the front surface of the base 2 through the limit of the bolt 5, and the clamp cannot swing to be separated, so that the normal excavating work of the bucket 12 of the excavator is avoided being influenced.
With continued reference to fig. 6, the bolt 5 may be a bolt, and in a case where the clamp 3 is not used, the bolt 5 is screwed through the first fixing hole 212 and the second fixing hole 311 and then the nut 51 is screwed to the bolt 5, so that the bolt 5 is inserted into the first fixing hole 212 and the second fixing hole 311 simultaneously, and the bolt 5 is prevented from falling off.
In addition, the bolt 5 is fixedly inserted into the first fixing hole 212 and the second fixing hole 311 in a manner other than the bolt structure shown in fig. 6, and as shown in fig. 7, a retaining ring 501 and a rectangular protrusion 502 are sequentially connected and fixed at one end of the bolt 5. A connecting sleeve 52 is fixed on one side of the locking plate 211 far away from the middle of the fixed base 2, a baffle ring 501 and a rectangular protrusion 502 of the plug pin 5 are positioned at one end of the inner side of the connecting sleeve 52, a spring 53 is further sleeved on the part of the plug pin 5 in the connecting sleeve 52 in a penetrating manner, the spring 53 is positioned between the baffle ring 501 and the inner wall of the connecting sleeve 52, and the rectangular protrusion 502 can be oriented to the locking plate 211 by the aid of elastic force of the spring 53. The first fixing hole 212 and the second fixing hole 311 are both rectangular through holes, and the rectangular protrusion 502 is adapted to pass through the first fixing hole 212 and the second fixing hole 311. In the structure of fig. 7, when the utility model is used to clamp materials, as shown in the right side of fig. 7, the bolt 5 is pulled to move the rectangular protrusion 502 to the outside of the first fixing hole 212 and the second fixing hole 311, and the bolt 5 is rotated to make the bolt 5 and the first fixing hole 212 intersect with each other, so that the rectangular protrusion 502 can be prevented from passing through the first fixing hole 212 and extending into the lock seat 21 to block the clamp plate 31, thereby affecting the swing of the clamp 3; when the utility model discloses when not using the centre gripping material, can be as shown in the left side of fig. 7, rotate bolt 5 to making the protruding 502 of rectangle with first fixed orifices 212 corresponds, later can make the protruding 502 of rectangle be in insert in proper order under the elastic force of spring 53 first fixed orifices 212 and second fixed orifices 311 to under the effect of spring 53, can make the protruding 502 of rectangle of bolt 5 keep inserting at first fixed orifices 212 and second fixed orifices 311, can avoid avoiding droing of bolt 5.
In addition, the pivot joint according to the present embodiment may be a structure in which the rotating shaft 34 is connected as shown in fig. 2 and 5, taking the pivot joint of the clamp 3 and the fixed base 2 as an example, the rotating shaft 34 is fixed at one end of the fixed base 2, and a connecting hole (not shown in the drawing) is provided at an end portion of the clamp 3 (i.e., an end portion of the two clamp plates 31), and the connecting hole is inserted and sleeved outside the rotating shaft 34, so that the clamp 3 can rotate relative to the fixed base 2 by taking the rotating shaft 34 as an axis.
In summary, after the present invention is mounted and fixed on the movable arm 11 of the excavator, in use, the clamp 3 is swung relative to the bucket 12 of the excavator by controlling the extension and contraction of the piston rod 41 of the hydraulic cylinder 4, so as to form an action of clamping the material. When the excavator is not used, the piston rod 41 of the control hydraulic cylinder 4 is kept in a retracted state, so that the clamp 3 can be kept attached to the side surface of the boom 11 of the excavator, and the normal excavating use of the excavator is not affected. Therefore, the installation the utility model discloses the transport function of expanded excavation makes the excavator have the centre gripping concurrently and excavates two kinds of operating condition, is favorable to extending the application range of excavator.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (7)
1. A hydraulic thumb clamp of an excavator is characterized by comprising:
the fixed base is fixedly connected to a movable arm of the excavator;
the clamp comprises a clamp, wherein one end of the clamp is provided with a clamping jaw;
a hydraulic cylinder;
the end, far away from the clamping jaw, of the clamp and the hydraulic cylinder are respectively pivoted to two ends of the fixed base, the clamp is connected to one end, close to a bucket of the excavator, of the fixed base, and the tail end of a piston rod of the hydraulic cylinder is also pivoted with the clamp; when a piston rod of the hydraulic cylinder extends out, the clamp is driven to swing to the clamping jaw to be close to the bucket, and when the piston rod of the hydraulic cylinder retracts, the clamp is driven to swing to the clamping jaw to be close to the fixed base.
2. The hydraulic thumb clamp of an excavator of claim 1, wherein: a lock seat is fixed in the middle of the fixed base, a lock plate perpendicular to the fixed base is arranged on the side edge of the lock seat, a first fixing hole penetrates through the side face of the lock plate, and a bolt penetrates through the first fixing hole; the side face of the clamp is provided with a second fixing hole, when a piston rod of the hydraulic cylinder retracts to drive the clamp to swing until the clamping jaw is close to the fixing base, the second fixing hole corresponds to the first fixing hole, and the bolt penetrates through the first fixing hole and the second fixing hole.
3. The hydraulic thumb clamp of an excavator of claim 2, wherein: the bolt is a bolt, and the bolt penetrates through the first fixing hole and the second fixing hole and then is in threaded connection with a nut.
4. The hydraulic thumb clamp of an excavator of claim 2, wherein: a connecting sleeve is fixed on one side of the locking plate far away from the middle of the fixed base, the plug pin sequentially penetrates through the connecting sleeve and the first fixing hole, and a spring is further sleeved on the part, in the connecting sleeve, of the plug pin; the outer side of the plug pin, which is close to the middle position in the axial direction, is provided with a baffle ring, and the spring is positioned between the baffle ring and the inner wall of the connecting sleeve; the first fixing hole and the second fixing hole are rectangular through holes, the end face of the tail end of the bolt is a rectangular protrusion, and the rectangular protrusion is matched with and penetrates through the second fixing hole.
5. The hydraulic thumb clamp of an excavator of claim 1, wherein: the clamp comprises clamp plates on two sides and a plurality of connecting plates, and the two sides of each connecting plate are fixedly connected with the two clamp plates respectively, so that a hollow structure is formed between the two clamp plates.
6. The hydraulic thumb clamp of an excavator of claim 5, wherein: the tail ends of the two clamp plates are fixedly connected with the clamping jaws, and when a piston rod of the hydraulic cylinder stretches out to drive the clamp to swing until the clamping jaws are close to the bucket, the two clamping jaws are embedded into two adjacent shovel grooves of the bucket.
7. The hydraulic thumb clamp of an excavator according to any one of claims 1 to 6, wherein: the clamp side is considered to be an arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120445158.5U CN214497665U (en) | 2021-03-02 | 2021-03-02 | Hydraulic thumb clamp of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120445158.5U CN214497665U (en) | 2021-03-02 | 2021-03-02 | Hydraulic thumb clamp of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214497665U true CN214497665U (en) | 2021-10-26 |
Family
ID=78226861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120445158.5U Active CN214497665U (en) | 2021-03-02 | 2021-03-02 | Hydraulic thumb clamp of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214497665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215129A (en) * | 2021-12-06 | 2022-03-22 | 徐州徐工挖掘机械有限公司 | Thumb clamping work tool for excavator and excavator thereof |
-
2021
- 2021-03-02 CN CN202120445158.5U patent/CN214497665U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215129A (en) * | 2021-12-06 | 2022-03-22 | 徐州徐工挖掘机械有限公司 | Thumb clamping work tool for excavator and excavator thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5400531A (en) | Excavator device | |
| US7257910B2 (en) | Impact resistant breaker deployment system for an excavating machine | |
| EP3241949B1 (en) | Integrated excavator pin grabber quick coupler | |
| CN214497665U (en) | Hydraulic thumb clamp of excavator | |
| US5918923A (en) | Pipe laying attachment for hydraulic equipment | |
| CN209779729U (en) | Dig dress all-in-one | |
| US4668156A (en) | Excavator bucket | |
| KR102353173B1 (en) | tilt coupler for excavator | |
| CN106881584B (en) | Apparatus and method for coupling a work tool to a machine | |
| CN112227439A (en) | Normally closed quick-change connector for excavator | |
| WO2020123095A1 (en) | Tool coupling arrangement having zero offset | |
| CN212774302U (en) | Tunnel is with shovel loader milling and digging device | |
| US3789524A (en) | Pipe cradler attachment for excavator bucket | |
| CN212248464U (en) | Scraper bowl for loader | |
| CN209779728U (en) | dig dress all-in-one convenient to overhaul | |
| CN106400870A (en) | Positive and negative double four-bar linkage material digging and grabbing bucket | |
| KR101200359B1 (en) | Attachment With Interchageable Jaw | |
| JPH01280196A (en) | Rotary excavator for expanding down hole | |
| KR200201244Y1 (en) | Working equipment of excavator | |
| CN215906871U (en) | Excavator mechanical arm and excavator | |
| CN214657312U (en) | Multifunctional bucket device and working machine | |
| RU2233948C1 (en) | Working equipment of single-bucket hydraulic excavator | |
| CN212001328U (en) | A flexible support that prevents inclining for excavator | |
| JP3602770B2 (en) | Offset boom type construction machine | |
| KR102433574B1 (en) | Rotating Structure of Excavator Tongs. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |