CN215592452U - Working machine - Google Patents

Abstract

The utility model provides a working machine which comprises a rotary table, an amplitude-variable mast, an arm support, a first pulling and holding device and a second pulling and holding device, wherein the amplitude-variable mast is arranged on the rotary table; the turntable includes: a turning part and an elongated part; the rotary part and the lengthening part are arranged along the length direction of the rotary table; the head end of the revolving part is rotatably arranged on a chassis of the operation machine, and the tail end of the revolving part is connected with the lengthening part; the amplitude-variable mast is a mast with adjustable length; one end of the amplitude mast and one end of the arm support are respectively and rotatably connected with the head end of the revolving part; one end of the first pulling device can be selectively connected with one of the rotating part and the lengthening part; the other end of the first pulling and holding device and one end of the second pulling and holding device are respectively connected with the other end of the variable amplitude mast; the other end of the second pulling and holding device is connected with the other end of the arm support. The utility model is based on the improvement of the rotary table and the amplitude-variable mast, so that the operation machinery can pull up a longer arm support, and the arm lifting capability and the hanging load of the arm support can be improved.

Description

Working machine

Technical Field

The utility model relates to the technical field of working machines, in particular to a working machine.

Background

Currently, for work machines having a turntable, a counterweight is typically added to the turntable to improve the stability of the work machine. For example, with the development of wind power generation in the direction of large megawatts, the demand of land wind power for a crane increases rapidly, and the crane needs to be added with a super lifting device in order to meet the special requirements of land wind power for a long arm frame and small-radius hoisting, and the super lifting device is high in cost, large in required field and difficult to assemble.

In the related art, the design length of the arm support can be increased to a certain extent by adding a group of rear counterweights capable of falling to the ground at the tail end of the rotary table, and the problem of insufficient rear counterweights of the operation machinery is solved. However, the existing design scheme cannot solve the problem of insufficient disturbance of the boom, so that the working machine cannot pull up a longer boom.

SUMMERY OF THE UTILITY MODEL

The utility model provides an operation machine, which is used for solving the problem that the operation machine cannot pull up a longer arm support due to insufficient disturbance degree of the arm support at present.

The present invention provides a working machine, including: revolving stage, become width of cloth mast, cantilever crane, first pulling hold device and second pulling hold device, the revolving stage includes: a turning part and an elongated part; the rotary part and the lengthening part are arranged along the length direction of the rotary table; the head end of the revolving part is rotatably arranged on a chassis of the working machine, and the tail end of the revolving part is connected with the lengthening part; the amplitude-variable mast is a mast with adjustable length; one end of the amplitude mast and one end of the arm support are respectively and rotatably connected with the head end of the revolving part; one end of the first pulling device can be selectively connected with one of the rotary part and the lengthening part; the other end of the first pulling and holding device and one end of the second pulling and holding device are respectively connected with the other end of the variable amplitude mast; the other end of the second pulling and holding device is connected with the other end of the arm support.

According to the working machine provided by the utility model, the amplitude-variable mast is a spliced mast, the spliced mast comprises a plurality of spliced sections, and two adjacent spliced sections are detachably connected; or the amplitude-variable mast is a telescopic mast.

According to the working machine provided by the utility model, under the condition that the amplitude-variable mast is a splicing mast, the end part of one of two adjacent splicing sections is provided with the first connecting lug, the end part of the other of the two adjacent splicing sections is provided with the second connecting lug, and the first connecting lug is connected with the second connecting lug through the pin shaft.

According to the working machine provided by the utility model, the rotating part is provided with the first switching part, and the lengthening part is provided with the second switching part; one end of the first pulling device can be selectively detachably connected with one of the first switching part and the second switching part.

According to the working machine provided by the utility model, a plurality of first installation positions are arranged on the rotary table and are respectively arranged on the rotary part and the lengthening part; any one of the plurality of first mounting locations is for selectively connecting with a first counterweight.

According to the working machine provided by the utility model, the plurality of first installation positions are sequentially arranged at intervals along the length direction; and/or the first mounting location comprises a lug; the first balance weight comprises a hanging plate frame and a balance weight block; the hanger frame with the detachable connection of hangers, the balancing weight is located the hanger frame.

According to the working machine provided by the utility model, one end of the lengthening part, which is far away from the rotating part, is provided with a second mounting position; the second mounting location is used for being connected with a second counterweight.

According to the present invention, there is provided a working machine further comprising: a telescoping mechanism; the telescopic mechanism is used for stretching along the vertical direction; the second mounting position is detachably connected with the upper end of the telescopic mechanism, and the lower end of the telescopic mechanism is detachably connected with the upper end of the second counterweight; the telescopic mechanism is provided with a first state and a second state; in the first state, the lower end of the second counterweight is in contact with the ground, and in the second state, the lower end of the second counterweight is separated from the ground.

According to the present invention, there is provided a working machine further comprising: a support leg; one end of the supporting leg is connected with one side, facing the ground, of the rotary table, and the other end of the supporting leg can be in contact with the ground.

According to the present invention, there is provided a working machine comprising a crane; and/or the working machine comprises a walking mechanism and a working machine tool; the rotary table is arranged on the upper side of the travelling mechanism, and the head end of the rotary part is rotatably arranged on the travelling mechanism; the working machine is connected with the other end of the arm support.

The working machine provided by the utility model is based on the improvement of the rotary table and the amplitude-variable mast, on one hand, the length of the rotary table is increased, the distance from the counter weight to the rotary center of the rotary table is increased, the stabilizing moment is increased, the stress distribution of the rotary table can be improved, and on the other hand, the length of the amplitude-variable mast is lengthened to improve the deflection of the arm support, so that the working machine can pull up a longer arm support, and the arm lifting capacity and the lifting load of the arm support can be improved.

Drawings

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

FIG. 1 is a schematic diagram of a work machine incorporating a first counterweight and a second counterweight according to the present disclosure;

FIG. 2 is one of the schematic structural illustrations of a luffing mast on a work machine provided by the present disclosure;

FIG. 3 is a second schematic structural view of a luffing mast on a work machine according to the present disclosure;

fig. 4 is a schematic structural view of a turntable on a working machine according to the present invention;

fig. 5 is a schematic structural view illustrating a structure in which one end of a first pulling device of a working machine according to the present invention is connected to a swiveling portion;

fig. 6 is a schematic structural view illustrating a connection between one end of a first pulling and holding device and an elongated portion of a working machine according to the present invention;

FIG. 7 is a schematic illustration of an extension and leg attachment configuration for a work machine according to the present disclosure;

reference numerals:

1: a turntable; 2: a variable amplitude mast; 3: a boom;

4: a first pulling device; 5: a second pulling device; 6: a traveling mechanism;

7: a work implement; 11: a turning part; 12: a lengthening part;

13: a first transition portion; 14: a second transfer part; 15: a first mounting location;

16: a second mounting location; 101: a first counterweight; 102: a second counterweight;

103: a telescoping mechanism; 104: a support leg; 21: a splice section.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A work machine of the present disclosure is described below in conjunction with fig. 1-7.

As shown in fig. 1, the present embodiment provides a working machine including: revolving stage 1, become width of cloth mast 2, cantilever crane 3, first pulling and holding device 4 and second pulling and holding device 5, revolving stage 1 includes: a turning part 11 and an elongated part 12; the rotary part 11 and the lengthened part 12 are arranged along the length direction of the rotary table 1; the head end of the revolving part 11 is rotatably arranged on a chassis of the working machine, and the tail end of the revolving part 11 is connected with the lengthening part 12; the amplitude-variable mast 2 is a mast with adjustable length; one end of the amplitude mast 2 and one end of the arm support 3 are respectively and rotatably connected with the head end of the revolving part 11; one end of the first pulling device 4 can be selectively connected with one of the rotary part 11 and the elongated part 12; the other end of the first pulling and holding device 4 and one end of the second pulling and holding device 5 are respectively connected with the other end of the luffing mast 2; the other end of the second pulling and holding device 5 is connected with the other end of the arm support 3.

Specifically, this embodiment is based on the improvement to revolving stage 1 and variable amplitude mast 2, on the one hand, through increasing the length of revolving stage 1, has increaseed the distance of counter weight to the centre of rotation of revolving stage 1, has increased stabilizing torque to can improve the atress distribution of revolving stage 1, on the other hand, through lengthening the length of variable amplitude mast 2, promotes the degree of disturbance of cantilever crane 3 self, makes so that the operation machinery can pull up longer cantilever crane 3, can all obtain promoting to the ability of getting up arm and the lifting load of cantilever crane 3.

It should be noted that the working machine shown in the present embodiment may be a crane, a pump truck, an excavator, a fire engine, etc. known in the art, and is not limited thereto.

Meanwhile, the end of the turning part 11 shown in this embodiment is detachably connected to the end of the elongated part 12 near the turning part 11 by a pin. In practical operation, the present embodiment may connect the turning part 11 with the first counterweight 101, and connect the end of the elongated part 12 away from the turning part 11 with the second counterweight 102.

Further, when the chassis of the working machine is the traveling mechanism 6, the turntable 1 shown in the present embodiment is provided above the traveling mechanism 6, and the leading end of the turning part 11 is rotatably provided on the traveling mechanism 6.

Meanwhile, the working machine shown in the embodiment further includes a working implement 7, and the working implement 7 is connected to the other end of the boom 3. The work implement 7 may be, among other things, a hook assembly, a trenching power head, etc., as is well known in the art.

Here, the working machine shown in the present embodiment is preferably a crane, and the crane may be specifically a crawler crane. In the case that the working machine is a crane, the first pulling and holding device 4 includes a wire rope, one end of the wire rope is hooked with the revolving part 11 or the lengthening part 12 through a hooking device with a pulley block, and the other end of the wire rope is connected with a fixed pulley assembly arranged at the other end of the luffing mast 2.

Meanwhile, the second pulling and holding device 5 shown in the present embodiment is preferably a pulling plate assembly known in the art, one end of the pulling plate assembly is detachably connected with the other end of the luffing mast 2, and the other end of the pulling plate assembly is detachably connected with the other end of the boom 3.

Further, in a preferred embodiment, the luffing mast 2 shown in this embodiment is a spliced mast, the spliced mast includes a plurality of spliced sections 21, and two adjacent spliced sections 21 are detachably connected.

Specifically, the number of the splice segments 21 shown in the present embodiment is a natural number equal to or greater than 2. According to the embodiment, the number of the splicing sections 21 can be selectively set according to actual requirements, so that the variable amplitude mast 2 can reach different lengths, and the boom raising requirements of the working machine under different working conditions can be met.

As shown in fig. 2, the luffing mast 2 according to the present embodiment is provided with two spliced sections 21. As shown in fig. 3, the luffing mast 2 according to the embodiment is provided with three spliced sections 21.

Further, under the condition that the variable amplitude mast 2 is a splicing mast, a first connecting lug is arranged at the end of one of the two adjacent splicing sections 21, a second connecting lug is arranged at the end of the other of the two adjacent splicing sections 21, and the first connecting lug is connected with the second connecting lug through a pin shaft.

Specifically, the first engaging lug and the second engaging lug shown in the present embodiment are provided with a plurality of ear holes in a one-to-one manner. In order to ensure the splicing reliability of the two adjacent splicing sections 21, in the embodiment, a plurality of ear holes may be arranged at intervals in sequence along the first direction, and the first direction and the axial direction of the luffing mast 2 form a preset included angle. Here, the pin shafts shown in this embodiment penetrate the ear holes, and a plurality of pin shafts are provided and are arranged in one-to-one correspondence with the ear holes. The preset included angle shown in this embodiment may be an acute angle or a right angle, and is not limited herein.

Further, in another preferred embodiment, the luffing mast 2 shown in the present embodiment is a telescopic mast. In this case, the luffing mast 2 shown in the present embodiment can be implemented using a ram known in the art, or the luffing mast 2 can be designed as a telescopic sleeve assembly. The sleeve component comprises a plurality of sleeve units with different pipe diameters, and two adjacent sleeve units are sleeved into a whole. This embodiment may provide a locking structure between two adjacent sleeve units. The locking structure is used for locking the two adjacent sleeve units when the two adjacent sleeve units are in an extension state, and unlocking the two adjacent sleeve units when the two adjacent sleeve units are in a retraction state.

As shown in fig. 4, the table top of the turning part 11 shown in this embodiment is provided with a first switching part 13, and the table top of the lengthening part 12 is provided with a second switching part 14; one end of the first pulling device 4 can be selectively detachably connected to one of the first adaptor 13 and the second adaptor 14. In this embodiment, the first adaptor portion 13 and the second adaptor portion 14 may be specifically arranged along the length direction of the turntable 1.

As shown in fig. 5, one end of the first pulling device 4 shown in this embodiment is connected to a first turning part 13 provided at the end of the turning part 11. As shown in fig. 6, one end of the first pulling device 4 shown in this embodiment is connected to the second adaptor 14 provided at one end of the extension portion 12 away from the rotation portion 11.

Therefore, the embodiment is based on the design of the first transfer portion 13 and the second transfer portion 14, and the backward movement of one end of the first pulling and holding device 4 is facilitated, so that the stress on the first pulling and holding device 4 is reduced, and the stress condition of the whole rotary table 1 is improved.

As shown in fig. 4, in order to facilitate the backward movement of the counterweight on the turntable 1, in the present embodiment, a plurality of first mounting locations 15 are provided on the turntable 1, and the plurality of first mounting locations 15 are respectively provided on the revolving portion 11 and the elongated portion 12; any one of the plurality of first mounting locations 15 is adapted to be selectively connectable with the first counterweight 101.

Specifically, the first mounting locations 15 shown in the present embodiment are sequentially arranged at intervals along the length direction. The first mounting locations 15 may be a switch hole, a hanging lug, a clamp, and other switch structures, which are not limited herein.

Further, the first mounting position 15 is preferably a lug; the first counterweight 101 comprises a hanger frame and a counterweight block; the hanging plate frame is detachably connected with the hanging lugs, and the balancing weight is arranged on the hanging plate frame. In order to ensure the connection reliability of the hanging plate frame and the hanging lugs, the hanging plate frame can be hung on two adjacent hanging lugs simultaneously. Here, the extension portion 12 shown in the present embodiment is provided with at least one hanging lug, and the turning portion 11 may be provided with a plurality of hanging lugs.

As shown in fig. 1, the hanger of the present embodiment is hung on one hanger of the extension portion 12 and one hanger of the turning portion 11. The embodiment is based on the design of the extension part 12, the length of the original rotary table is increased, and therefore the backward movement of the first balance weight 101 on the rotary table 1 is conveniently realized. Thus, the present embodiment facilitates enhancing the boom raising capability and the suspension load capability of the work machine.

As shown in fig. 1 and 4, the end of the elongated portion 12 away from the turning portion 11 is provided with a second mounting location 16; the second mounting location 16 is for attachment to a second counterweight 102. The second mounting location 16 is preferably a hook hole.

As shown in fig. 1, the second counterweight 102 of the present embodiment is hoisted to the second installation site 16, and the lower end of the second counterweight 102 is separated from the ground. In the embodiment, the second counterweight 102 is arranged, so that the arrangement length of the boom 3 of the working machine is effectively increased, and the anti-tipping capability of the working machine is enhanced.

Furthermore, in order to control the lifting of the second counterweight 102 according to the actual operating condition of the working machine, so that the second counterweight 102 can be selectively switched to fall to the ground or fall from the ground, the embodiment is further provided with a telescopic mechanism 103; the telescopic mechanisms 103 are arranged in the vertical direction; the second mounting position 16 is detachably connected to the upper end of the telescopic mechanism 103, and the lower end of the telescopic mechanism 103 is detachably connected to the upper end of the second counterweight 102.

Wherein, the telescopic mechanism 103 has a first state and a second state; in the first state, the lower end of the second balance weight 102 is in contact with the ground, and in the second state, the lower end of the second balance weight 102 is separated from the ground.

As shown in fig. 1, in the present embodiment, a first counterweight 101 is installed at a position close to the elongated portion 12, and a second counterweight 102 is hung at the second installation position 16 of the elongated portion 12, and the lower end of the second counterweight 102 is separated from the ground. Thus, the present embodiment simultaneously achieves the backward movement of the first counterweight 101 and the landing of the second counterweight 102, and can enhance the boom raising capability and the suspension capability of the working machine.

The telescopic mechanism 103 shown in the present embodiment may be a lift cylinder or a pulley lifting mechanism known in the art.

As shown in fig. 7, in order to improve the safety of the work machine against backward tilting, the present embodiment is further provided with a leg 104; one end of the leg 104 is connected to the side of the turntable 1 facing the ground, and the other end of the leg 104 can be in contact with the ground.

In one embodiment, to enhance the adaptability of the leg 104 to different ground heights, the leg 104 shown in this embodiment is a retractable leg, such as: the support leg 104 may be a cylinder or a telescopic sleeve.

In another embodiment, in order to prevent the upright leg 104 from affecting the normal walking of the working machine, one end of the leg 104 shown in this embodiment is rotatably connected to the elongated portion 12, and the leg 104 has a first state for being perpendicular to the ground and a second state for being accommodated on the lower side of the turntable 1.

It should be noted that, when the support leg 104 shown in the present embodiment is in the first state, the other end of the support leg 104 can be either in contact with the ground to support the turntable 1 or separated from the ground, and at this time, the contact state of the other end of the support leg 104 with the ground can be adjusted and controlled according to actual requirements. When the leg 104 is in the second state, the leg 104 is accommodated below the turntable 1, and at this time, the work machine can be controlled to travel.

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

Claims (10)

1. A work machine comprising: a rotary table, a variable amplitude mast, an arm support, a first pulling and holding device and a second pulling and holding device, which is characterized in that,

the turntable includes: a turning part and an elongated part; the rotary part and the lengthening part are arranged along the length direction of the rotary table; the head end of the revolving part is rotatably arranged on a chassis of the working machine, and the tail end of the revolving part is connected with the lengthening part;

the amplitude-variable mast is a mast with adjustable length;

one end of the amplitude mast and one end of the arm support are respectively and rotatably connected with the head end of the revolving part; one end of the first pulling device can be selectively connected with one of the rotary part and the lengthening part; the other end of the first pulling and holding device and one end of the second pulling and holding device are respectively connected with the other end of the variable amplitude mast; the other end of the second pulling and holding device is connected with the other end of the arm support.

2. The work machine of claim 1,

the variable amplitude mast is a spliced mast, the spliced mast comprises a plurality of spliced sections, and two adjacent spliced sections are detachably connected;

or the amplitude-variable mast is a telescopic mast.

3. The work machine of claim 2,

under the condition that the amplitude-variable mast is a splicing mast, a first connecting lug is arranged at the end part of one of the two adjacent splicing sections, a second connecting lug is arranged at the end part of the other of the two adjacent splicing sections, and the first connecting lug is connected with the second connecting lug through a pin shaft.

4. The work machine according to any one of claims 1 to 3,

the rotating part is provided with a first switching part, and the lengthening part is provided with a second switching part; one end of the first pulling device can be selectively detachably connected with one of the first switching part and the second switching part.

5. The work machine according to any one of claims 1 to 3,

the rotary table is provided with a plurality of first installation positions which are respectively arranged on the rotary part and the lengthening part; any one of the plurality of first mounting locations is for selectively connecting with a first counterweight.

6. The work machine of claim 5,

the plurality of first installation positions are sequentially arranged at intervals along the length direction;

and/or the first mounting location comprises a lug; the first balance weight comprises a hanging plate frame and a balance weight block; the hanger frame with the detachable connection of hangers, the balancing weight is located the hanger frame.

7. The work machine according to any one of claims 1 to 3,

a second mounting position is arranged at one end of the lengthening part, which is far away from the rotating part; the second mounting location is used for being connected with a second counterweight.

8. The work machine of claim 7,

further comprising: a telescoping mechanism;

the telescopic mechanism is used for stretching along the vertical direction; the second mounting position is detachably connected with the upper end of the telescopic mechanism, and the lower end of the telescopic mechanism is detachably connected with the upper end of the second counterweight;

the telescopic mechanism is provided with a first state and a second state; in the first state, the lower end of the second counterweight is in contact with the ground, and in the second state, the lower end of the second counterweight is separated from the ground.

9. The work machine according to any one of claims 1 to 3,

further comprising: a support leg;

one end of the supporting leg is connected with one side, facing the ground, of the rotary table, and the other end of the supporting leg can be in contact with the ground.

10. The work machine according to any one of claims 1 to 3,

the work machine comprises a crane;

and/or the working machine comprises a walking mechanism and a working machine tool; the rotary table is arranged on the upper side of the travelling mechanism, and the head end of the rotary part is rotatably arranged on the travelling mechanism; the working machine is connected with the other end of the arm support.

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