CN218261704U - Amplitude-variable auxiliary arm, arm support and operation machine - Google Patents

Abstract

The utility model relates to the technical field of engineering machinery, and provides a variable-amplitude auxiliary arm, an arm support and an operation machine, wherein the variable-amplitude auxiliary arm comprises a front frame, a rear frame and a driving cylinder; the rear frame is used for being connected with the main arm; the front frame is hinged with the rear frame; the both ends of driving cylinder are articulated with front truck and after-poppet respectively to can adjust the contained angle between front truck and the after-poppet through the flexible of driving cylinder. The amplitude-variable auxiliary boom comprises a front frame, a rear frame and a driving cylinder, wherein the rear frame is used for being connected with the main boom, the front frame, the rear frame and the driving cylinder are sequentially hinged end to end, and an included angle between the front frame and the rear frame can be adjusted through the extension and retraction of the driving cylinder, so that when the amplitude-variable auxiliary boom is in actual use, a structure surrounded by the front frame, the rear frame and the driving cylinder can be adjusted through the extension and retraction of the driving cylinder, and the amplitude variation of the auxiliary boom is further realized; compared with the traditional variable-amplitude auxiliary jib with a fixed angle, the variable-amplitude auxiliary jib can realize stepless regulation of the variable-amplitude angle, is more flexible to use, and has a wider application range.

Description

Amplitude-variable auxiliary arm, arm support and operation machine

Technical Field

The utility model relates to an engineering machine tool technical field especially relates to a become width of cloth auxiliary jib, cantilever crane and operation machinery.

Background

The auxiliary jib is a common actuating mechanism of the operation machinery, taking a crawler crane as an example, at present, the auxiliary jib of the crawler crane usually has constant-angle amplitude and cannot carry out stepless adjustment on the amplitude angle; in addition, connecting elements such as the pin shaft and the like need to be disassembled and assembled during amplitude variation, the process is complicated, and the workload is large.

Therefore, how to realize the stepless adjustment of the amplitude variation angle of the auxiliary jib is a difficult problem to be solved urgently in the field at the present stage.

SUMMERY OF THE UTILITY MODEL

The utility model provides a become width of cloth auxiliary jib can make the auxiliary jib realize becoming the infinitely variable control of width of cloth angle, has solved the difficult problem in this field at present stage. The utility model also provides a cantilever crane, including foretell change width of cloth auxiliary jib, consequently, can realize changing the infinitely variable control of width of cloth angle. The utility model also provides an operation machine, including foretell cantilever crane, consequently, can realize becoming the infinitely variable control of width of cloth angle, solve the difficult problem in this field at present stage.

The utility model provides a first aspect of an amplitude-variable auxiliary boom, which comprises a front frame, a rear frame and a driving cylinder;

the rear frame is used for being connected with the main arm;

the front frame is hinged with the rear frame;

the two ends of the driving cylinder are respectively hinged with the front frame and the rear frame, and the included angle between the front frame and the rear frame can be adjusted through the stretching of the driving cylinder.

According to the utility model, the luffing jib also comprises a first pulley and a pulley seat;

the first pulley is arranged on the pulley seat;

the pulley seat is hinged with the front frame and the rear frame.

According to the utility model provides a become width of cloth auxiliary jib, the front truck is equipped with the second pulley.

According to the luffing jib provided by the utility model, the rear frame comprises four rear rods, namely a first rear rod, a second rear rod, a third rear rod and a fourth rear rod;

the rear ends of the four rear rods are used for being connected with the main arm;

the front ends of the first rear rod and the second rear rod are hinged with the front frame;

the front ends of the third rear rod and the fourth rear rod are hinged with the driving cylinder.

According to the variable amplitude auxiliary arm provided by the utility model, the rear frame also comprises a rear connecting seat;

the front ends of the third rear rod and the fourth rear rod are connected with the rear connecting seat;

the driving cylinder is hinged with the rear connecting seat.

According to the luffing jib provided by the utility model, the rear frame also comprises a reinforcing plate;

the top of the reinforcing plate is connected with the first rear rod and the second rear rod, and the bottom of the reinforcing plate is connected with the rear connecting seat.

According to the variable amplitude auxiliary boom provided by the utility model, the front frame comprises a first front plate and a second front plate which are arranged in parallel;

the first front plate is hinged with the first rear rod, and the second front plate is hinged with the second rear rod;

a front connecting seat is arranged between the first front plate and the second front plate, the second pulley is arranged on the front connecting seat, and the driving cylinder is hinged with the front connecting seat.

According to the luffing jib provided by the utility model, a reinforcing rod is arranged between the first front plate and the second front plate;

the pulley seat is respectively hinged with the reinforcing rod and the reinforcing plate.

The second aspect of the utility model provides a cantilever crane, include main arm and as above any kind become width of cloth auxiliary jib.

A third aspect of the present invention provides a working machine including the above-mentioned boom.

The utility model provides a luffing jib, which comprises a front frame, a rear frame and a driving cylinder; the rear frame is used for being connected with the main arm; the front frame is hinged with the rear frame; the both ends of driving cylinder are articulated with front bezel and after-poppet respectively to can adjust the contained angle between front bezel and the after-poppet through the flexible of driving cylinder. The amplitude-variable auxiliary boom comprises a front frame, a rear frame and a driving cylinder, wherein the rear frame is used for being connected with the main boom, the front frame, the rear frame and the driving cylinder are sequentially hinged end to end, and an included angle between the front frame and the rear frame can be adjusted through the extension and retraction of the driving cylinder, so that when the amplitude-variable auxiliary boom is in actual use, a structure surrounded by the front frame, the rear frame and the driving cylinder can be adjusted through the extension and retraction of the driving cylinder, and the amplitude variation of the auxiliary boom is further realized; compared with the traditional variable-amplitude auxiliary jib with a fixed angle, the variable-amplitude auxiliary jib can realize stepless regulation of the variable-amplitude angle, is more flexible to use, and has a wider application range. Therefore, the utility model provides a become width of cloth auxiliary jib can make the auxiliary jib realize becoming the infinitely variable control of width of cloth angle, has solved the difficult problem in this field at present stage.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of an auxiliary jib according to an embodiment of the present invention;

FIG. 2 is a perspective view of an amplitude-varying auxiliary arm according to the embodiment of the present invention;

FIG. 3 is a top view of an auxiliary jib according to an embodiment of the present invention;

fig. 4 is a bottom view of the variable amplitude sub-arm according to the embodiment of the present invention;

FIG. 5 is a rear view of the variable amplitude secondary arm in an embodiment of the present invention;

FIG. 6 is a schematic view of the variable amplitude sub-arm according to the embodiment of the present invention;

fig. 7 is a schematic view of the auxiliary arm folded to the side of the main arm in the embodiment of the present invention.

Reference numerals are as follows:

1. a front frame; 2. a rear frame; 3. a driving cylinder; 4. a main arm; 5. a first pulley; 6. a pulley seat; 7. a second pulley; 8. a rear connecting seat; 9. a front connecting seat; 10. a reinforcing plate; 11. a reinforcing rod; 12. a rear connecting plate; 13. a rear connecting rod;

1a, a first front plate; 1b, a second front plate;

2a, a first rear rod; 2b, a second rear bar; 2c, a third rear bar; 2d, a fourth rear bar.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 an embodiment of the 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.

The luffing jib, the boom and the working machine in the embodiment are described below with reference to fig. 1 to 7; it should be understood that the following are only exemplary embodiments of the present invention, and do not constitute any particular limitation of the present invention.

The luffing jib provided by the embodiment can comprise a front frame 1, a rear frame 2 and a driving cylinder 3; wherein, the rear frame 2 is used for connecting with the main arm 4; the front frame 1 is hinged with the rear frame 2; the both ends of actuating cylinder 3 can be articulated with front truck 1 and after-frame 2 respectively to can adjust the contained angle between front truck 1 and the after-frame 2 through the flexible of actuating cylinder 3.

The amplitude-variable auxiliary boom comprises a front frame 1, a rear frame 2 and a driving cylinder 3, wherein the rear frame 2 is used for being connected with a main boom 4, the front frame 1, the rear frame 2 and the driving cylinder 3 are sequentially hinged end to end, an included angle between the front frame 1 and the rear frame 2 can be adjusted through the extension and contraction of the driving cylinder 3, and further, when the amplitude-variable auxiliary boom is in actual use, a structure enclosed by the front frame 1, the rear frame 2 and the driving cylinder 3 can be adjusted through the extension and contraction of the driving cylinder 3, so that the amplitude of the auxiliary boom is changed; compared with the traditional variable-amplitude auxiliary boom with a fixed angle, the variable-amplitude auxiliary boom can realize stepless adjustment of the variable-amplitude angle, is more flexible to use and has a wider application range; and moreover, manual disassembly and adjustment are not needed during amplitude variation, the workload of operators is reduced, and the working efficiency is improved.

Therefore, the utility model provides a become width of cloth fly jib can make the fly jib realize becoming the infinitely variable control of width of cloth angle, has solved the difficult problem in this field at present stage.

The two ends of the driving cylinder 3 are respectively a cylinder base end and a telescopic end, in one embodiment, the telescopic end of the driving cylinder 3 can be hinged with the front frame 1, and the cylinder base end can be hinged with the rear frame 2; in another embodiment, the telescopic end of the driving cylinder 3 can be hinged with the rear frame 2, and the cylinder seat end can be hinged with the front frame 1; in the actual design, the setting may be performed as needed.

The driving cylinder 3 can be an electric cylinder, an oil cylinder or an air cylinder; for example, a gear and rack cooperating to provide a telescoping arrangement, or other drive elements capable of functioning equally.

The luffing jib provided by the embodiment can further comprise a first pulley 5 and a pulley seat 6; the first pulley 5 may be disposed on the pulley holder 6; the pulley seat 6 can be hinged with the front frame 1 and the rear frame 2; when the angle between the front frame 1 and the rear frame 2 is changed, the normal work of the first pulley 5 is not influenced; please refer to fig. 1-2.

Further, a second pulley 7 can be arranged on the front frame 1, please refer to fig. 1-2, when in actual use, the hanging rope sequentially bypasses the first pulley 5 and the second pulley 7, and is used as an actuating mechanism to carry out lifting or hoisting work. The first pulley 5 can be used as a guide wheel to guide the movement of the hanging rope; meanwhile, the influence on the hanging rope can be avoided in the amplitude changing process.

In the luffing jib according to the present embodiment, the rear frame 2 may include four rear spars, which are a first rear spar 2a, a second rear spar 2b, a third rear spar 2c, and a fourth rear spar 2d, respectively; the rear ends of the four rear rods can be all used for being connected with the main arm 4; wherein, the front ends of the first rear rod 2a and the second rear rod 2b can be hinged with the front frame 1; the front ends of the third rear rod 2c and the fourth rear rod 2d can be hinged with the driving cylinder 3, so that the front frame 1 and the rear frame 2 are rotatably connected.

In actual design, the four rear rods can be arranged in parallel; or the four rear rods can be arranged in a non-parallel way on the premise of playing the same role.

It should be noted that, in the present embodiment, front and rear are mentioned, where front refers to an end where the front frame 1 is disposed, that is, an end for performing work; the rear refers to the end of the rear frame 2 that is arranged, i.e. the end that is connected to the main arm 4.

Further, the rear frame 2 may further include a rear connection seat 8, and front ends of the third rear bar 2c and the fourth rear bar 2d may be connected to the rear connection seat 8; and, the actuating cylinder 3 can be articulated with back connecting seat 8, and actuating cylinder 3 can realize articulatedly with after-poppet 2 through back connecting seat 8 promptly.

In the luffing jib according to this embodiment, the rear frame 2 may further include a reinforcing plate 10; referring to fig. 5, the top of the reinforcing plate 10 may be connected to the front ends of the first rear rod 2a and the second rear rod 2b, and the bottom of the reinforcing plate 10 may be connected to the rear connection seat 8, so as to improve the overall load-bearing strength of the rear frame 2.

Further, the rear frame 2 may further include a rear connection plate 12 and a rear connection rod 13, wherein the rear connection plate 12 may be disposed between the first rear rod 2a and the second rear rod 2 b; similarly, a rear connecting plate 12 may be disposed between the third rear rod 2c and the fourth rear rod 2 d.

A rear connecting rod 13 can be arranged between the first rear rod 2a and the rear connecting seat 8; similarly, a rear connecting rod 13 can be arranged between the second rear rod 2b and the rear connecting seat 8; a rear connecting rod 13 may be provided between the first rear rod 2a and the reinforcing plate 10; similarly, a rear connecting rod 13 can be arranged between the second rear rod 2b and the reinforcing plate 10; a rear connecting rod 13 may be provided between the first rear rod 2a and the third rear rod 2 c; similarly, a rear connecting rod 13 may be disposed between the second rear rod 2b and the fourth rear rod 2 d.

The arrangement of the rear connecting plate 12 and the rear connecting rod 13 can ensure the stability and the bearing strength of the whole structure of the rear frame 2; meanwhile, the amplitude-variable auxiliary boom can be conveniently folded and arranged on the side surface of the main boom 4, and the folding of the auxiliary boom is not influenced.

Referring to fig. 7, the four rear rods of the luffing jib can be connected to the main arm 4 by pins, and during non-operation time, two adjacent pins can be removed, so that the jib can be folded and stored on the side surface of the main arm 4 for storage.

In the luffing jib according to the present embodiment, the front frame 1 may include a first front plate 1a and a second front plate 1b arranged in parallel; the first front plate 1a and the second front plate 1b can be hinged with the first rear rod 2a and the second rear rod 2b respectively, that is, the first front plate 1a can be hinged with the first rear rod 2a, and the second front plate 1b can be hinged with the second rear rod 2 b; referring to fig. 2, a front connection seat 9 may be disposed between the first front plate 1a and the second front plate 1b, a second pulley 7 may be disposed at an upper portion of the front connection seat 9, and the driving cylinder 3 may be hinged to a bottom portion of the front connection seat 9.

Further, the front connecting seat 9 may be provided with two second pulleys 7 in parallel, and then the hanging rope may be wound around the outer circumferential surface of the second pulleys 7 as required.

In the luffing jib according to the present embodiment, a reinforcing rod 11 may be disposed between the first front plate 1a and the second front plate 1b; pulley holder 6 can be articulated with the stiffener 11 of setting on the front truck 1 and the reinforcing plate 10 of setting on the rear truck 2, and pulley holder 6 is through articulated with stiffener 11 and reinforcing plate 10 respectively, and then realizes the articulated with front truck 1 and rear truck 2, and then when the sub-jib becomes width of cloth, can guarantee the normal work of first pulley 5.

The present embodiment further provides an arm support, which comprises a main arm 4 and the variable-amplitude auxiliary arm, and therefore, the arm support is also within the scope of the present invention.

The present invention further provides a working machine, which includes the above-mentioned arm support, and therefore the working machine is also within the scope of the present invention.

The working machine can be a crane, an excavator, a crane or other mechanical equipment comprising the luffing jib or the boom.

Taking a crane as an example, please refer to fig. 6, the rear frame 2 of the luffing jib is used for being connected with the main arm 4 of the jib, the front frame 1 is hinged with the rear frame 2, the telescopic end of the driving cylinder 3 is hinged with the front frame 1, the cylinder seat end of the driving cylinder 3 is hinged with the rear frame 2, and the included angle between the front frame 1 and the rear frame 2 can be adjusted through the extension and retraction of the telescopic end, so as to realize the luffing of the jib.

Referring to fig. 7, the four rear rods of the luffing jib can be connected to the main arm 4 by pins, and during non-operation time, two adjacent pins can be removed, so that the jib can be folded and stored on the side surface of the main arm 4.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A variable-amplitude auxiliary arm is characterized by comprising a front frame (1), a rear frame (2) and a driving cylinder (3);

the rear frame (2) is used for being connected with the main arm (4);

the front frame (1) is hinged with the rear frame (2);

the two ends of the driving cylinder (3) are hinged to the front frame (1) and the rear frame (2) respectively, and the included angle between the front frame (1) and the rear frame (2) can be adjusted through stretching of the driving cylinder (3).

2. The luffing jib according to claim 1, further comprising a first pulley (5) and a pulley block (6);

the first pulley (5) is arranged on the pulley seat (6);

the pulley seat (6) is hinged with the front frame (1) and the rear frame (2).

3. The luffing jib according to claim 2, wherein said forward frame (1) is provided with a second pulley (7).

4. The luffing jib according to claim 3, wherein said rear frame (2) comprises four rear spars, a first rear spar (2 a), a second rear spar (2 b), a third rear spar (2 c) and a fourth rear spar (2 d);

the rear ends of the four rear rods are used for being connected with the main arm (4);

the front ends of the first rear rod (2 a) and the second rear rod (2 b) are hinged with the front frame (1);

the front ends of the third rear rod (2 c) and the fourth rear rod (2 d) are hinged with the driving cylinder (3).

5. The luffing jib according to claim 4, wherein said rear frame (2) further comprises a rear connection seat (8);

the front ends of the third rear rod (2 c) and the fourth rear rod (2 d) are connected with the rear connecting seat (8);

the driving cylinder (3) is hinged with the rear connecting seat (8).

6. The luffing jib according to claim 5, wherein said rear frame (2) further comprises a stiffening plate (10);

the top of the reinforcing plate (10) is connected with the first rear rod (2 a) and the second rear rod (2 b), and the bottom of the reinforcing plate (10) is connected with the rear connecting seat (8).

7. The luffing jib according to claim 6, wherein said forward frame (1) comprises a first forward plate (1 a) and a second forward plate (1 b) arranged side by side;

the first front plate (1 a) is hinged with the first rear rod (2 a), and the second front plate (1 b) is hinged with the second rear rod (2 b);

a front connecting seat (9) is arranged between the first front plate (1 a) and the second front plate (1 b), the second pulley (7) is arranged on the front connecting seat (9), and the driving cylinder (3) is hinged to the front connecting seat (9).

8. The luffing jib according to claim 7, wherein a reinforcing rod (11) is disposed between said first front plate (1 a) and said second front plate (1 b);

the pulley seat (6) is hinged with the reinforcing rod (11) and the reinforcing plate (10) respectively.

9. Arm support, characterized in that it comprises a main arm (4) and a luffing jib according to any one of claims 1 to 8.

10. A working machine, characterized in that it comprises a boom according to claim 9.

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