CN217201786U

CN217201786U - Knuckle arm connecting structure and crane

Info

Publication number: CN217201786U
Application number: CN202220240021.0U
Authority: CN
Inventors: 向宇光; 周斌
Original assignee: Sany Automobile Hoisting Machinery Co Ltd
Current assignee: Sany Automobile Hoisting Machinery Co Ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-08-16
Anticipated expiration: 2032-01-28

Abstract

The utility model provides a knuckle arm connecting structure and a crane, wherein the knuckle arm connecting structure comprises a connecting piece, an adjusting piece and a locking piece, and the connecting piece is used for connecting a first knuckle arm; the adjusting piece is rotatably connected to the connecting piece through a rotating shaft; the adjusting piece is used for connecting the second section arm; the locking member is used for limiting the rotation of the adjusting member relative to the connecting member. The utility model discloses when the installation of the first festival arm of hoist and second festival arm, because first festival arm is connected to the connecting piece, and the regulating part rotary type is connected in the connecting piece, so the regulating part can be according to second festival arm size adjusting position to after the regulating part rotates to suitable position, restrict the regulating part through the retaining member and rotate for the connecting piece, thereby the not unidimensional second festival arm of regulating part adaptation of being convenient for has improved the commonality of festival arm.

Description

Knuckle arm connecting structure and crane

Technical Field

The utility model relates to an engineering machine tool technical field particularly, relates to a festival arm connection structure and hoist.

Background

At present, in order to increase the hoisting load amplitude, most cranes are provided with auxiliary arms. When the auxiliary arm is installed, the auxiliary arm is connected with the arm head of the main arm through the connecting fork on the arm seat. However, in the actual use process, the sizes of the main arms are not uniform, so that the sections of the arm heads of the main arms are different, and the installation sizes of the auxiliary arm seats are different, so that the universality of the auxiliary arm is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how realize the festival arm commonality of hoist.

In order to solve the above problem, the utility model provides a knuckle arm connection structure, include:

the connecting piece is used for connecting the first section arm;

the adjusting piece is rotatably connected to the connecting piece through a rotating shaft and is used for connecting the second knuckle arm;

a retaining member for limiting rotation of the adjustment member relative to the attachment member.

Optionally, the connecting piece is equipped with first shaft hole, the regulating part is equipped with the second shaft hole, the pivot is worn to locate first shaft hole with the second shaft hole is in order to connect the connecting piece with the regulating part.

Optionally, the retaining member includes the stop pin, the connecting piece still is equipped with a plurality of first round pin shaft holes, be equipped with second round pin shaft hole on the regulating part, the stop pin is suitable for wearing to locate second round pin shaft hole and one of them first round pin shaft hole.

Optionally, a plurality of the first pin shaft holes are located on the same circumference.

Optionally, the adjusting member includes a first plate, a second plate, and a third plate, the first plate and the second plate are disposed at an interval, two ends of the third plate are respectively connected to the first plate and the second plate, the first plate, the second plate, and the third plate surround to form a first accommodating portion, and the connecting member is rotatably disposed in the first accommodating portion.

Optionally, the first shaft hole and the second shaft hole both extend through the connecting piece into the portion of the first accommodating portion; the second shaft hole and the second pin shaft hole both penetrate through the adjusting piece and are communicated with the first accommodating portion.

Optionally, the adjusting member includes a first plate, a second plate, and a third plate, the first plate and the second plate are disposed at an interval, two ends of the third plate are respectively connected to the first plate and the second plate, the first plate, the second plate, and the third plate surround to form the second accommodating portion, and the second accommodating portion is connected to the second knuckle arm in a matching manner.

Optionally, the connecting piece includes a first connecting portion and a second connecting portion connected to each other, the adjusting piece is rotatably disposed on the first connecting portion, and the second connecting portion is used for connecting the first knuckle arm.

Another embodiment of the utility model provides a crane, including first festival arm, second festival arm and as above festival arm connection structure, first festival arm with pass through between the second festival arm connection structure connects.

Optionally, one of the first and second articulated arms is provided with a swivel support, and the other of the first and second articulated arms is adapted to be rotatably connected to the swivel support upon assembly.

Compared with the prior art, the beneficial effects of the utility model are that:

when the first festival arm and the second festival arm installation of hoist, because first festival arm is connected to the connecting piece, and the regulating part rotary type is connected in the connecting piece, so the regulating part can be according to second festival arm size adjusting position to rotate to suitable position back at the regulating part, restrict the regulating part through the retaining member and rotate for the connecting piece, thereby the not unidimensional second festival arm of regulating part adaptation of being convenient for has improved the commonality of festival arm.

Drawings

Fig. 1 is an assembly schematic view of a middle arm connecting structure, a first arm and a second arm according to the present invention;

FIG. 2 is a schematic structural view of an embodiment of a connector according to the present invention;

FIG. 3 is a schematic structural view of an embodiment of an adjusting member according to the present invention;

FIG. 4 is a schematic view of another perspective of the adjusting member of the present invention;

fig. 5 is an assembly diagram of a first arm and a second arm according to the present invention.

Description of reference numerals:

1. a first joint arm; 2. a second joint arm; 21. a connecting shaft; 3. a knuckle arm connection structure; 31. a connecting member; 311. a first shaft hole; 312. a first pin shaft hole; 313. a first connection portion; 314. a second connecting portion; 32. an adjustment member; 321. a second shaft hole; 322. a second pin shaft hole; 323. a first plate member; 324. a second plate member; 325. a third plate member; 326. a first receptacle portion; 327. a second receptacle portion; 328. a first mounting hole; 33. a locking pin; 4. and (4) rotating and supporting.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

The Z-axis in the drawings indicates a vertical direction, i.e., an up-down position, and a forward direction of the Z-axis (i.e., an arrow direction of the Z-axis) indicates an upward direction and a reverse direction of the Z-axis indicates a downward direction; the Y-axis in the drawings is represented as a front-rear position, and a forward direction of the Y-axis represents a rear side and a reverse direction of the Y-axis represents a front side; it should also be noted that the foregoing Z-axis and Y-axis representations are merely intended to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

It should be understood that, in the existing partial jib crane boom, the jib head of the main jib is provided with connecting shafts at the upper end and the lower end, and when the crane needs to increase the lifting load, a matched auxiliary jib is usually selected to be connected to the connecting shafts of the jib head of the main jib, that is, the size of the jib seat of the auxiliary jib is just matched with the connecting shafts of the jib head of the main jib at the upper end and the lower end. After the size of main arm changes, its arm head also can change sometimes at the upper end and the connection interaxial distance that the lower extreme set up, and at this moment, the fly jib originally just can not continue to use, need choose suitable fly jib again for use to install, and the commonality of fly jib is not high, has caused the waste.

As shown in fig. 1, the joint arm connecting structure 3 of the present invention includes a connecting member 31, an adjusting member 32 and a locking member, wherein the connecting member 31 is used for connecting the first joint arm 1; the adjusting part 32 is rotatably connected to the connecting part 31 through a rotating shaft; the adjusting piece 32 is used for connecting the second section arm 2; the locking member serves to restrict the rotation of the adjusting member 32 with respect to the connecting member 31.

In one embodiment, the first knuckle arm 1 is a main arm, the second knuckle arm 2 is an auxiliary arm, and after the knuckle arm connection structure 3 of this embodiment is adopted, when the first knuckle arm 1 and the second knuckle arm 2 of the crane are installed, because the connecting piece 31 is connected with the first knuckle arm 1, and the adjusting piece 32 is rotatably connected to the connecting piece 31, the adjusting piece 32 can adjust the position according to the size of the second knuckle arm 2, and after the adjusting piece 32 rotates to a proper position, the adjusting piece 32 can be limited to rotate relative to the connecting piece 31 through the locking piece, so that the adjusting piece 32 can be conveniently adapted to the second knuckle arms 2 with different sizes, and the universality of the knuckle arms is improved.

In other embodiments, the first arm 1 is a sub arm, and the second arm 2 is a main arm, depending on actual requirements.

Specifically, as shown in fig. 1, 2 and 3, the connecting member 31 is provided with a first shaft hole 311, the adjusting member 32 is provided with a second shaft hole 321, and the rotating shaft is inserted into the first shaft hole 311 and the second shaft hole 321 to connect the connecting member 31 and the adjusting member 32.

As shown in fig. 2 and 3, the connecting member 31 is provided with a first shaft hole 311 therethrough; the adjusting piece 32 is provided with a second shaft hole 321 which penetrates through the adjusting piece, the cross sections of the first shaft hole 311 and the second shaft hole 321 are circular, and the sizes of the first shaft hole 311 and the second shaft hole 321 are equal; when the connecting member 31 and the adjusting member 32 are installed, the first shaft hole 311 and the second shaft hole 321 are aligned, and then the rotating shaft is inserted into the first shaft hole 311 and the second shaft hole 321 to connect the connecting member 31 and the adjusting member 32.

Optionally, the locking member comprises a locking pin 33, and the connecting member 31 is further provided with a plurality of first pin hole holes 312; the adjusting member 32 is provided with a second pin shaft hole 322, and the locking pin 33 is adapted to be inserted through the second pin shaft hole 322 and one of the first pin shaft holes 312.

In this embodiment, the number of the first pin hole 312 is not limited, and may be one, two, or three, etc. according to the actual requirement.

As shown in fig. 2, the connecting member 31 is further provided with three first pin shaft holes 312, the three first pin shaft holes 312 are located in the same circumference, and since the adjusting member 32 rotates around the rotating shaft, each first pin shaft hole 312 is equidistant from the first shaft hole 311. The adjusting member 32 is provided with a second pin shaft hole 322, the first pin shaft hole 312 and the second pin shaft hole 322 are circular and have the same diameter, the locking pin 33 is also circular, and the locking pin 33 is suitable for being arranged in the second pin shaft hole 322 and one of the first pin shaft holes 312, so that the mutual rotation of the connecting member 31 and the adjusting member 32 is limited.

While the first pin holes 312 are located in the same circumference, in other embodiments, the first pin holes 312 may not be located in the same circumference, and two adjacent first pin holes 312 may have a deviation therebetween, but it is necessary to satisfy the requirement that the lock pin 33 can be inserted into the first pin hole 312 and the second pin hole 322 at the same time.

In other embodiments, the first and second pin bore 312, 322 are oval, square, or other irregular shapes.

Optionally, the adjusting member 32 includes a first plate 323, a second plate 324, and a third plate 325, where the first plate 323 and the second plate 324 are disposed at an interval, two ends of the third plate 325 are respectively connected to the first plate 323 and the second plate 324, and the first plate 323, the second plate 324, and the third plate 325 surround to form a first accommodating portion 326 and a second accommodating portion 327.

In this embodiment, as shown in fig. 3 and 4, the first plate 323 and the second plate 324 have the same shape and size, the first plate 323 and the second plate 324 are arranged at an interval, two ends of the third plate 325 are respectively connected to the first plate 323 and the second plate 324, the three are integrally cast into an H-shaped structure, and the third plate 325 divides a space between the first plate 323 and the second plate 324 into a first accommodating cavity and a second accommodating cavity.

It is to be understood that the third plate 325 may be connected to the first plate 323 and the second plate 324 by welding or screws.

The connecting member 31 is rotatably disposed in the first accommodating portion 326. Thus, when the connecting member 31 and the adjusting member 32 are assembled, it is convenient to quickly roughly position the connecting member 31 and the adjusting member 32 and then align the first shaft hole 311 and the second shaft hole 321.

Specifically, the first shaft hole 311 and the second shaft hole 321 each penetrate through a portion of the connecting member 31 that protrudes into the first accommodating portion 326; the second shaft hole 321 and the second pin shaft hole 322 each penetrate the adjuster 32 and communicate with the first accommodating portion 326.

In this embodiment, the portion of the connecting member 31 extending into the first accommodating portion 326 is provided with a first shaft hole 311 and a second shaft hole 321, and both the first shaft hole 311 and the second shaft hole 321 penetrate through the connecting member 31; meanwhile, the second shaft hole 321 and the second pin shaft hole 322 both penetrate the adjuster 32 and communicate with the first accommodating portion 326, whereby the first shaft hole 311 can be aligned with the second shaft hole 321 and the second pin shaft hole 322 can be aligned with one of the first pin shaft holes 312 after the connector 31 is inserted into the first accommodating portion 326.

The first accommodating portion 326 includes a first side wall and a second side wall which are oppositely arranged, and the portions of the connecting member 31 extending into the first accommodating portion 326 are respectively in contact with the first side wall and the second side wall, thereby limiting the displacement of the adjusting member 32 in the axial direction of the rotating shaft.

It will be appreciated that the second receiving portion 327 is cooperatively associated with the second arm 2 when the adjuster 32 is mounted to the second arm.

Specifically, the second arm section 2 is provided with a connecting shaft 21, the connecting shaft 21 is provided with a second mounting hole, and the adjusting member 32 is further provided with a first mounting hole 328 communicated with the second accommodating portion 327. When the adjuster 32 is connected to the second joint arm 2, the adjuster 32 moves relative to the connecting shaft 21 on the second joint arm 2, so that the connecting shaft 21 extends into the second accommodating portion 327, and the first mounting hole 328 and the second mounting hole are aligned and then locked by the latch.

Optionally, the connecting element 31 includes a first connecting portion 313 and a second connecting portion 314 connected to each other, the adjusting element 32 is rotatably disposed on the first connecting portion 313, and the second connecting portion 314 is used for connecting the first joint arm 1.

As shown in fig. 2, the first connection portion 313 and the second connection portion 314 are integrally formed, and the first connection portion 313 is block-shaped and rotatably connected to the adjustment member 32; the second connecting portion 314 is plate-shaped and connected to the first link arm 1. Therefore, the structure is simple, and the production and the manufacture are convenient.

In other embodiments, the first connection portion 313 and the second connection portion 314 may be connected by welding or screwing.

The utility model discloses a hoist of another embodiment, including first festival arm 1, second festival arm 2 and as above festival arm connection structure 3, connect through festival arm connection structure 3 between first festival arm 1 and the second festival arm 2.

After the hoist of this embodiment is adopted, when the first festival arm 1 and the installation of second festival arm 2 of hoist, because connecting piece 31 connects first festival arm 1, and regulating part 32 rotary type is connected in connecting piece 31, so regulating part 32 can be according to the 2 size adjusting positions of second festival arm, and after regulating part 32 rotated to suitable position, can restrict regulating part 32 through the retaining member and rotate for connecting piece 31, thereby be convenient for the not unidimensional second festival arm 2 of regulating part 32 adaptation, the commonality of festival arm has been improved.

Optionally, one of the first and second articulated arms 1, 2 is provided with a swivel support 4, and the other of the first and second articulated arms 1, 2 is adapted to be rotatably connected to the swivel support 4 upon assembly.

As shown in fig. 5, the rotary support 4 is fixed on the second arm segment 2, and the first arm segment 1 is provided with a fixing seat which is matched with the rotary support 4 for rotation, that is, the first arm segment 1 is rotatably connected to the rotary support 4 through the fixing seat.

The first knuckle arm 1 is used as an auxiliary arm, and the second knuckle arm 2 is used as a main arm.

When in installation, the main arm is retracted to the right position; then the auxiliary arm is rotatably connected to the rotary support 4, and the auxiliary arm is rotated by taking the rotary support as a center, so that the first mounting hole 328 of the adjusting part 32 is superposed with the second mounting hole of the connecting shaft 21 at the upper end of the main arm and is fixed by a bolt; and rotating the auxiliary arm by 180 degrees to ensure that the adjusting piece 32 on the other side of the arm seat of the auxiliary arm is fixed with the connecting shaft 21 at the lower end of the main arm, and finally realizing the quick assembly and disassembly of the auxiliary arm and the main arm.

The reader should understand that in the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. A knuckle arm connection structure characterized by comprising:

the connecting piece is used for connecting the first section arm;

2. The knuckle arm connection structure according to claim 1, wherein the connecting member is provided with a first shaft hole, the adjusting member is provided with a second shaft hole, and the rotating shaft is inserted into the first shaft hole and the second shaft hole to connect the connecting member and the adjusting member.

3. The jointed arm connection of claim 2, wherein said locking member includes a locking pin, said connecting member further having a plurality of first pin hole holes; the adjusting piece is provided with a second pin shaft hole, and the locking pin is suitable for penetrating through the second pin shaft hole and one of the first pin shaft holes.

4. The knuckle arm connection structure according to claim 3, wherein a plurality of the first pin shaft holes are located on the same circumference.

5. The knuckle arm connection structure according to claim 3, wherein the adjustment member comprises a first plate, a second plate and a third plate, the first plate and the second plate are spaced apart from each other, two ends of the third plate are connected to the first plate and the second plate, respectively, the first plate, the second plate and the third plate surround to form a first accommodation portion, and the connection member is rotatably disposed in the first accommodation portion.

6. The knuckle arm connection structure according to claim 5, wherein the first shaft hole and the second shaft hole each extend through a portion of the connecting member that protrudes into the first receiving portion; the second shaft hole and the second pin shaft hole both penetrate through the adjusting piece and are communicated with the first accommodating portion.

7. The arm connecting structure according to claim 2, wherein the adjusting member includes a first plate, a second plate, and a third plate, the first plate and the second plate are spaced apart from each other, two ends of the third plate are connected to the first plate and the second plate, respectively, and the first plate, the second plate, and the third plate surround to form a second accommodating portion, and the second accommodating portion is connected to the second arm in a fitting manner.

8. The knuckle arm connection structure according to claim 1, wherein the link member includes a first link portion and a second link portion connected to each other, the adjustment member being rotatably provided on the first link portion, the second link portion being used to connect the first knuckle arm.

9. A crane comprising a first knuckle arm, a second knuckle arm and the knuckle arm connection structure of any one of claims 1 to 8, the first knuckle arm and the second knuckle arm being connected by the knuckle arm connection structure.

10. The crane of claim 9, wherein one of the first and second knuckle arms is provided with a swivel support, and the other of the first and second knuckle arms is adapted to be rotatably connected to the swivel support upon assembly.