CN215249188U

CN215249188U - Hoisting equipment

Info

Publication number: CN215249188U
Application number: CN202120346934.6U
Authority: CN
Inventors: 扶锋阳; 肖春良; 李自军; 张玉柱; 武鼎超; 沈昌武
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-12-21
Anticipated expiration: 2031-02-05

Abstract

The utility model relates to an engineering machine tool field discloses a hoisting equipment, wherein, hoisting equipment include revolving stage (10), install in mast (20) and the super device (30) of revolving stage (10), the super device of lifting include counter weight (32) and connect in the arm-tie (33) of counter weight, hoisting equipment is still including being used for adjusting the counter weight with super counter weight amplitude changing device (60) of the distance between revolving stage (10), super counter weight amplitude changing device is including becoming a width of cloth and roll over arm (61) and telescoping cylinder (62), the both ends that become a width of cloth roll over the arm articulate respectively the mast with the arm-tie, the both ends of telescoping cylinder articulate respectively in become a width of cloth roll over the arm with the mast. The hoisting equipment reduces the number of the folding arms, simplifies the structure of the super-lift counterweight amplitude changing device and reduces the cost.

Description

Hoisting equipment

Technical Field

The utility model relates to an engineering machine tool specifically relates to hoisting equipment.

Background

In order to cooperate with the super-lifting device of the lifting equipment to operate, a super-lifting counterweight amplitude-changing device is generally required to be used for adjusting the distance between a counterweight of the super-lifting device and a rotary table. In the prior art, most of super-lifting counterweight amplitude changing devices comprise a first folding arm and a second folding arm which are hinged to each other, and a cylinder with two ends respectively hinged to the first folding arm and the second folding arm, wherein the tail end of the first folding arm is hinged to the rotary table, and the tail end of the second folding arm is hinged to a pull plate connected with a counterweight of the super-lifting device. The first folding arm can rotate relative to the second folding arm and the second folding arm can rotate relative to the rotary table through the air cylinders so as to adjust the position between the balance weight and the rotary table. However, the super counterweight amplitude variation device is too complex in structure and high in cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hoisting equipment in order to overcome the complicated problem of super counter weight luffing device structure that prior art exists, this hoisting equipment's super counter weight luffing device simple structure, cost reduction.

In order to achieve the above object, the utility model provides an aspect provides a hoisting equipment, wherein, hoisting equipment include the revolving stage, install in the mast and the super device of lifting of revolving stage, super lift device include the counter weight with connect in the arm-tie of counter weight, hoisting equipment is still including being used for adjusting the counter weight with super counter weight that lifts of distance between the revolving stage becomes the width of cloth device, super lift counter weight becomes the width of cloth device and becomes arm and telescoping cylinder including becoming width of cloth, become width of cloth and roll over the both ends of arm articulate respectively in the mast with the arm-tie, the both ends of telescoping cylinder articulate respectively become width of cloth roll over the arm with the mast.

Optionally, one end of the variable amplitude folding arm is hinged to the tail end of the mast.

Optionally, one end of the telescopic cylinder is hinged to the middle of the variable amplitude folding arm, and the other end of the telescopic cylinder is hinged to the middle of the mast.

Optionally, the super-lift apparatus includes a first supporting device, the first supporting device includes a supporting main body and a connecting member, one end of the supporting main body is hinged to the super-lift mast of the super-lift apparatus, two ends of the connecting member are respectively connected to the supporting main body and the super-lift mast to form a triangular structure with the supporting main body and the super-lift mast, and the other end of the supporting main body is configured to be capable of contacting with the turntable.

Optionally, one end of the support body is connected to the top or middle part of the super lift mast.

Optionally, the connecting member includes a first mounting point, a second mounting point and a third mounting point arranged in a triangle, and the connecting member is connected to one of the support body and the super lift mast through the first mounting point and the second mounting point, and connected to the other of the support body and the super lift mast through the third mounting point.

Optionally, the turntable is provided with a first contact groove which is in rotational contact with the other end of the support body.

Optionally, a supporting member extending toward the turntable is disposed at a tail end of the mast, the other end of the telescopic cylinder is hinged to the supporting member, and the hoisting device includes a rigid second supporting device, and the second supporting device is respectively connected to the mast and the super-lifting mast of the super-lifting device.

Optionally, the turntable is provided with a second contact groove in rotational contact with the end of the support.

Optionally, the hoisting device is a crawler crane.

Through the technical scheme, the mast can replace one folding arm in the prior art, so that only one variable-amplitude folding arm can be used, the number of the folding arms is reduced, the structure of the super-lift counterweight variable-amplitude device is simplified, and the cost is reduced.

Drawings

Fig. 1 is a schematic view illustrating a construction of a lifting apparatus according to an embodiment of the present application;

FIG. 2 is a position relationship of the support body and the turntable of FIG. 1 in a non-levitating condition;

FIG. 3 is a schematic view of the structure of the connector of FIG. 1;

fig. 4 is a schematic structural view illustrating a lifting apparatus according to another embodiment of the present application.

Description of the reference numerals

10. A turntable; 10a, a contact base; 11. a contact groove; 20. a mast; 21. a support member; 30. a super lift device; 31. a mast; 32. balancing weight; 33. pulling a plate; 34. the anti-back-tilting rod of the super-lifting mast; 40. a first support device; 41. a support body; 411. a segment; 42. a connecting member; 421. a first link; 422. A second link; 423. a diagonal bar; 50. a second support device; 60. a super-lift counterweight luffing device; 61. A variable amplitude folding arm; 62. a telescopic cylinder; 70. a forearm; s1, a first pulling plate; s2, a second pulling plate; l, main amplitude-variable steel wire ropes; p, a pin shaft.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The application provides a hoisting equipment, wherein, hoisting equipment includes revolving stage 10, install in mast 20 and super lift device 30 of revolving stage 10, super lift device 30 includes counter weight 32 and connects in the arm-tie 33 of counter weight 32, hoisting equipment still includes the super lift counter weight luffing device 60 that is used for adjusting the distance between counter weight 32 and the revolving stage 10, super lift counter weight luffing device 60 includes luffing folding arm 61 and telescoping cylinder 62, luffing folding arm 61's both ends articulate respectively in mast 20 with the arm-tie 33, telescoping cylinder 62's both ends articulate respectively in luffing folding arm 61 with mast 20.

The mast 20 can replace one folding arm in the prior art, so that only one amplitude-variable folding arm 61 can be used, the number of the folding arms is reduced, the structure of the super-lift counterweight amplitude-variable device is simplified, and the cost is reduced.

Specifically, as shown in fig. 1, the luffing jib 61 can be rotated relative to the mast 20 by extending and retracting the telescopic cylinder 62, so as to adjust the distance between the counterweight 32 and the turntable 10, for example, the position of the counterweight 32 can be adjusted between a left dotted line position (corresponding to a larger hoisting weight, a longer distance between the counterweight 32 and the turntable 10) and a right dotted line position (corresponding to a smaller hoisting weight, a shorter distance between the counterweight 32 and the turntable 10) shown in fig. 1.

To increase the amplitude of the adjustment as much as possible, one end of the luffing jib 61 can be hinged to the end of the mast 20.

The installation position of the telescopic cylinder 62 can be selected according to the requirement, in order to increase the adjustment range as much as possible, one end of the telescopic cylinder 62 can be hinged to the middle part of the variable amplitude folding arm 61, and the other end of the telescopic cylinder 62 can be hinged to the middle part of the mast 20.

In order to facilitate the maintenance of the suspended state of the counterweight 32 without the lifting or the hoisting of a small amount without using the counterweight 32, preferably, as shown in fig. 1, the superlift apparatus includes a first supporting device 40, the first supporting device 40 includes a supporting body 41 and a connecting member 42, one end of the supporting body 41 is hinged to the superlift mast 31 of the superlift device 30, both ends of the connecting member 42 respectively connect the supporting body 41 and the superlift mast 31 to form a triangular structure with the supporting body 41 and the superlift mast 31, and the other end of the supporting body 41 is configured to be able to contact with the turntable 10.

Thus, when the crane is not lifted or the lifting weight is light, the weight of the counterweight 32 of the superlift apparatus 30 can be transmitted to the turntable 10 through the support apparatus 40, thereby keeping the counterweight 32 of the superlift apparatus 30 from falling to the ground. Therefore, by keeping the counterweight 32 from falling to the ground (i.e., floating) at all times, it is possible to adapt to more work occasions and improve efficiency.

Wherein the connecting member 42 forms a triangular structure with the supporting body 41 and the super lift mast 31, and the supporting device 40 can stably transmit the weight of the balance weight 32 to the turntable 10.

In the present application, the supporting device 40 may be in various suitable forms as long as it can bear pressure as required. For example, as shown in FIG. 1, the support device 40 may comprise a truss structure. Alternatively, the support device 40 may be a ladder frame structure.

In addition, the support device 40 may be selected to have different lengths according to the position where the support device 40 is connected to the super lift mast 31. To this end, the support means 40 may be provided to be capable of varying in length, for example the support means 40 may be in a telescopic form. Preferably, for convenience of arrangement, as shown in fig. 1, the supporting device 40 may include at least two segments 41 sequentially connected in a length direction of the supporting device 40, so that a corresponding number of segments 41 are selected according to a desired length. Wherein adjacent segments 41 may be secured to each other by any suitable means, such as by snapping or by a pin. In the embodiment shown in fig. 1, adjacent segments 41 may be fixedly connected by a pin.

In addition, the support device 40 may be attached to the superlift mast 31 at a suitable location, for example, in the embodiment shown in FIG. 1, the support device 40 may be attached to the top of the superlift mast 31. In other embodiments, the support device 40 may also be connected to the middle of the superlift mast 31.

In case of transferring load through the supporting device 40, both the supporting body 41 and the connecting member 42 are pressurized, and in order to stably pressurize the connecting member 42, the connecting member 42 may include a first mounting point, a second mounting point, and a third mounting point arranged in a triangle, and the connecting member 42 is connected to one of the supporting body 41 and the superlift mast 31 through the first mounting point and the second mounting point, and connected to the other one of the supporting body 41 and the superlift mast 31 through the third mounting point. In the embodiment shown in fig. 1, the connecting member 42 is connected to the superlift mast 31 via the first and second mounting points and to the support body 41 via a third mounting point.

To facilitate forming the first, second, and third mounting points, the connecting member 42 may form a triangular-like structure. Specifically, as shown in fig. 3, the connection member 42 may include a first connection rod 421 and a second connection rod 422 that are angled with respect to each other, and a diagonal rod 423 connected between the first connection rod 421 and the second connection rod 422. Ends of the first link 421 and the second link 422, which are far from each other, may serve as a first mounting point and a second mounting point, respectively, and ends of the first link 421 and the second link 422, which are near to each other, may be connected to each other to serve as a third mounting point. The diagonal member 423 may be provided in plurality to reinforce the overall structural strength of the connecting member 42.

The position of the connecting member 42 may be set as desired. For example, it may be attached at respective middle positions of the support body 41 and the super lift mast 31. In case the support body 41 has at least two segments 411 connected to each other, said connection 42 may be connected at the connection of two of said segments 411.

In order to provide support during rotation and avoid that rotation of the support body 41 causes wear of the parts in contact therewith, during use, as the parts such as the raising mast 31 are pivoted about the turntable 10, the turntable 10 is provided with a first contact groove 11 in rotational contact with the other end of the support body 41. Preferably, the first contact groove 11 may be arc-shaped (for example, as shown in fig. 2, a contact seat 10a having the arc-shaped first contact groove 11 may be provided on the turntable 10), and the other end of the support body 41 may be provided with a pin P contacting with the first contact groove 11, when the weight of the hoisting weight is small or in non-hoisting, a part of the weight of the super-lift weight 32 is used for balancing the hoisting weight, and at this time, the support body 41 bears and forms a semi-articulated contact with the turntable 10 through the first contact groove 11 to transmit the pressure to the turntable 10, so that the super-lift weight 32 still does not fall to the ground (i.e., floats).

Other means for suspending the weight 32 may be employed. For example, in the embodiment shown in fig. 4, the mast 20 is provided at its distal end with a support 21 extending toward the turntable 10, the other end of the telescopic cylinder 62 is hinged to the support 21, and the lifting apparatus includes a rigid second support device 50, and the second support device 50 is connected to the mast 20 and the raising mast 31 of the raising device 30, respectively.

Wherein the support 21 may be part of the mast 20 and the telescopic cylinder 62 is hinged to the mast 20 via the support 21. The second support means 50 forms a stable triangular structure with the mast 20 and the superlift mast 31, which can meet different conditions of the lifting apparatus. For example, when the super lift mast is raised (the tip of the super lift mast 31 faces the front of the lifting equipment), the second support device 50 provides a pulling force between the mast 20 and the super lift mast 31, and when the super lift is carried out (the tip of the super lift mast 31 faces the rear of the lifting equipment), the second support device 50 bears between the mast 20 and the super lift mast 31.

In addition, the second supporting device 50 forms a stable triangular structure with the mast 20 and the super lift mast 31, and can realize that:

the second supporting device 50 does not interfere with relevant components such as the super lifting mast 31 and the like;

the movement track of the mast 20 is ensured to be fixed, so that the contact position of the support 21 and the rotary table 10 is determined.

The second supporting device 50 may be in various forms as appropriate, and may be a rigid structure capable of bearing and pulling as required. For example, the second support device 50 may be a truss structure. Alternatively, the second support means 50 may also be a ladder frame structure.

In addition, the second supporting means 50 may be selected to have different lengths according to the position where the second supporting means 50 is connected to the superlift mast 31. For this purpose, the second support means 50 may be provided to be able to change in length, for example the second support means 50 may be in a telescopic form. Preferably, for ease of arrangement, the second support means 50 may comprise at least two segments connected in series along the length of the second support means 50. Wherein adjacent segments may be secured to each other by any suitable means, such as by snapping or by a pin.

In addition, the second support device 50 may be connected to the superlift mast 31 at a suitable position, for example, one end of the second support device 50 may be connected to the top or middle portion of the superlift mast 31.

The support 21 transfers the weight of the superlift device 30 to the turntable 10 when not lifted or when the lifting weight is light. For this reason, in order to stably transmit the load by the supporting member 21 in a pressure-bearing state of transmitting the load, it is preferable that the supporting member 21 includes a first mounting point, a second mounting point and a contact point which are arranged in a triangular shape, the first mounting point and the second mounting point being adapted to be connected to the mast 20, and the contact point being adapted to be in contact with the turntable 10. That is, the triangle formed by the first mounting point, the second mounting point and the contact point can ensure that the support 21 stably transfers the load between the mast 20 and the turntable 10.

Wherein the support member 21 may adopt a structure similar to the connecting member 41 in the embodiment of fig. 1 to form a first assembly point, a second assembly point and a contact point.

Similarly, in order to provide support during rotation and avoid wear of the parts in contact with the contact point caused by rotation of the support 21, the turntable 10 is provided with a second contact groove in rotational contact with the contact point. Like the embodiment shown in fig. 2, the second contact groove may be arc-shaped, and the contact point may be disposed on the pin, when the weight of the hoisting weight is small or in non-hoisting, a part of the weight of the super-lift weight 32 is used for balancing the hoisting weight, and the support member 21 bears and forms a semi-articulated contact with the turntable 10 through the second contact groove to transmit the pressure to the turntable 10, so that the super-lift weight 32 still does not fall to the ground (i.e., is suspended).

Similar to the prior art, the hoisting equipment of the application further comprises a front arm 70, a superlift mast anti-back-tilting rod 34, a steel wire rope and the like for connecting the front arm 70 with the superlift mast 31, the connection of the superlift device 30 and the mast 20 with the rotary table 10 and the front arm 70 is also the same as that of the prior art, the superlift mast 31 is connected with the mast 20 through a first pulling plate S1, the mast 20 is connected with the rotary table 10 through a second pulling plate S2, and the main amplitude steel wire rope L penetrates out of the rotary table 10 and is connected with the mast 20.

The hoisting equipment of the application can be various hoisting equipment with super-lift working conditions, for example, the hoisting equipment can be a crawler crane.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. The present application includes the combination of individual features in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The hoisting equipment is characterized by comprising a rotary table (10), a mast (20) and a super-lifting device (30), wherein the mast (20) is installed on the rotary table (10), the super-lifting device (30) comprises a counterweight (32) and a pulling plate (33) connected to the counterweight (32), the hoisting equipment further comprises a super-lifting counterweight device (60) used for adjusting the distance between the counterweight (32) and the rotary table (10), the super-lifting counterweight amplitude-changing device (60) comprises an amplitude-changing folding arm (61) and a telescopic cylinder (62), two ends of the amplitude-changing folding arm (61) are respectively hinged to the mast (20) and the pulling plate (33), and two ends of the telescopic cylinder (62) are respectively hinged to the amplitude-changing folding arm (61) and the mast (20).

2. Hoisting device as claimed in claim 1, characterized in that one end of the luffing jib (61) is hinged to the end of the mast (20).

3. Hoisting device as claimed in claim 1 or 2, characterized in that one end of the telescopic cylinder (62) is hinged to the middle of the luffing jib (61), and the other end of the telescopic cylinder (62) is hinged to the middle of the mast (20).

4. The hoisting device according to claim 3, characterized in that the hoisting device comprises a first support means (40), the first support means (40) comprising a support body (41) and a connector (42), one end of the support body (41) being hinged to the superlift mast (31) of the superlift device (30), and two ends of the connector (42) respectively connecting the support body (41) and the superlift mast (31) to form a triangular structure with the support body (41) and the superlift mast (31), the other end of the support body (41) being arranged to be able to contact the turntable (10).

5. Hoisting device as claimed in claim 4, characterized in that one end of the support body (41) is connected to the top or middle part of the superlift mast (31).

6. Hoisting device as claimed in claim 4, characterized in that said connecting member (42) comprises a first, a second and a third mounting point arranged triangularly, by means of which said connecting member (42) is connected to one of said support body (41) and said superlift mast (31) and by means of which said connecting member (42) is connected to the other of said support body (41) and said superlift mast (31).

7. Hoisting device as claimed in claim 4, characterized in that said turntable (10) is provided with a first contact groove (11) in rotating contact with the other end of said supporting body (41).

8. Lifting device according to claim 3, characterized in that the mast (20) is provided at its distal end with a support (21) extending towards the turntable (10), the telescopic cylinder (62) being hinged at its other end to said support (21), the lifting device comprising a second rigid support means (50), the second support means (50) being connected to the mast (20) and to the superlift mast (31) of the superlift device (30), respectively.

9. Hoisting device as claimed in claim 8, characterized in that the turntable (10) is provided with a second contact groove in rotating contact with the end of the support (21).

10. The hoisting device of claim 1, wherein the hoisting device is a crawler crane.