CN114426248A - Counterweight device and crane - Google Patents
Counterweight device and crane Download PDFInfo
- Publication number
- CN114426248A CN114426248A CN202011179430.6A CN202011179430A CN114426248A CN 114426248 A CN114426248 A CN 114426248A CN 202011179430 A CN202011179430 A CN 202011179430A CN 114426248 A CN114426248 A CN 114426248A
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- Prior art keywords
- mounting
- lifting
- turntable
- counterweight
- counterweight device
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- 238000009434 installation Methods 0.000 abstract description 13
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to the field of cranes and discloses a counterweight device and a crane, wherein the counterweight device (100) comprises a supporting mechanism (110) which is used for being installed on a rotary table (200) of the crane and extends towards the rear of the rotary table (200), an installation mechanism (120) which is used for installing a counterweight (300) and a lifting mechanism (130) which is used for connecting the installation mechanism (120) to the lower part of the supporting mechanism (110), and the lifting mechanism (130) comprises a lifting unit (131) which is used for lifting the installation mechanism (120). By connecting the mounting mechanism for mounting the counterweight to the support mechanism extending rearward of the turntable, the moment of the counterweight can be increased. And, through connecting installation mechanism in the supporting mechanism below, avoided promoting the counter weight to the height of revolving stage top when the dismouting, reduced the dismouting degree of difficulty.
Description
Technical Field
The invention relates to a crane, in particular to a counterweight device and a crane.
Background
The balance weight is used as an accessory part of the crane and is used for playing a balance role when the crane lifts. In the prior art, a counterweight is usually mounted at the rear of a rotary table of a crane through a lifting cylinder. Because the counterweight is arranged on the turntable, the gravity center of the counterweight is close to the rotation center of the turntable, so that the increased moment is insufficient, and the use requirement can be met only by increasing the weight of the counterweight. In addition, increase the counter weight and need continue to install the balancing weight on the revolving stage, need promote the balancing weight and install again on the revolving stage, need follow higher position dismantlement during the dismantlement, the dismouting is all very inconvenient.
Disclosure of Invention
The invention aims to solve the problems of insufficient counterweight moment and inconvenience in disassembly and assembly in the prior art, and provides a counterweight device which can provide larger moment and is convenient to disassemble and assemble.
In order to achieve the above object, an aspect of the present invention provides a counterweight device, wherein the counterweight device includes a support mechanism for being mounted on a turntable of a crane and extending rearward of the turntable, a mounting mechanism for mounting a counterweight, and a lifting mechanism for connecting the mounting mechanism to a position below the support mechanism, the lifting mechanism including a lifting unit for lifting the mounting mechanism.
Optionally, along the extending direction of the supporting mechanism, the supporting mechanism includes a first connecting end for connecting the turntable and a second connecting end for connecting the lifting mechanism.
Optionally, the support mechanism is arranged to form a triangular frame with the turntable to provide stable support for the lifting mechanism and the mounting mechanism.
Optionally, the supporting mechanism includes a supporting frame and an auxiliary supporting member, a first end of the supporting frame in the extending direction is hinged to the turntable, one end of the auxiliary supporting member is hinged to a second end of the supporting frame in the extending direction, and the other end of the auxiliary supporting member is hinged to the turntable above the first end.
Optionally, the support frame includes the main part and sets up respectively first mount pad and second mount pad at the both ends of the extending direction of main part, first mount pad be provided with be used for with revolving stage articulated first pinhole, the second mount pad be provided with be used for with auxiliary support piece articulated second pinhole.
Optionally, the main body portion is of a truss structure and includes two main chords arranged along an extending direction of the main body portion, and the first mounting seat and the second mounting seat are respectively arranged at two ends of the main chords.
Optionally, one end of the lifting unit is hinged to the supporting mechanism, and the lifting mechanism includes a connecting unit for connecting the other end of the lifting unit with the mounting mechanism.
Optionally, the lifting mechanism includes two lifting units and two corresponding connecting units respectively disposed at two sides of the mounting mechanism, and each connecting unit includes a connecting plate connected to the lifting unit and a tensile member connected to the connecting plate and the mounting mechanism.
Optionally, each connecting unit includes two of the bearing pieces, and one end of each of the two bearing pieces is connected to the two opposite ends of the mounting mechanism respectively, so as to form an isosceles triangle structure with the mounting mechanism.
The application still provides a hoist, wherein, the hoist includes revolving stage and the counter weight device of this application, supporting mechanism install in the revolving stage and to the revolving stage rear extends.
Through the technical scheme, the moment of the counterweight can be increased by connecting the mounting mechanism for mounting the counterweight to the supporting mechanism extending towards the rear of the rotary table. And, through connecting installation mechanism in the supporting mechanism below, avoided promoting the counter weight to the height of revolving stage top when the dismouting, reduced the dismouting degree of difficulty.
Drawings
Fig. 1 is a schematic view illustrating a structure in which a weight device according to an embodiment of the present application is mounted on a turntable;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of the structure of the connection unit of FIG. 1;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of a crane according to an embodiment of the present application.
Description of the reference numerals
100-counterweight device, 110-supporting mechanism, 111-auxiliary supporting piece, 112-first mounting seat, 112 a-first pin hole, 113-second mounting seat, 113 a-second pin hole, 113 b-third pin hole 114-main chord, 115-straight rod, 116-diagonal rod, 120-mounting mechanism, 130-lifting mechanism, 131-lifting unit, 132-connecting unit, 132 a-connecting plate, 132 b-bearing and pulling piece, 200-rotary table, 300-counterweight, 310-counterweight block, H1-first mounting hole and H2-second mounting hole. And P-pin shaft.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as viewed with reference to the accompanying drawings, unless otherwise specified; "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.
According to an aspect of the present application, there is provided a counterweight device, wherein the counterweight device 100 includes a support mechanism 110 for being mounted on a turntable 200 of a crane and extending rearward of the turntable 200, a mounting mechanism 120 for mounting a counterweight 300, and a lifting mechanism 130 for connecting the mounting mechanism 120 to a position below the support mechanism 110, and the lifting mechanism 130 includes a lifting unit 131 for lifting the mounting mechanism 120.
The counterweight device 100 of the present application can increase the moment of the counterweight by connecting the mounting mechanism 120 for mounting the counterweight 300 to the support mechanism 110 extending rearward of the turntable 200. In addition, the installation mechanism 120 is connected below the support mechanism 110, so that the counterweight 300 is prevented from being lifted to a height above the turntable 200 during assembly and disassembly, and the assembly and disassembly difficulty is reduced.
Specifically, the support mechanism 110 corresponds to an extension portion added from the rear of the turntable 200, so that the distance from the center of gravity of the counterweight to the center of rotation of the turntable 200, that is, the moment of the counterweight can be increased. Also, when the counterweight 300 is mounted, the counterweight 300 may be mounted on the mounting mechanism 120 on the ground, and then the mounting mechanism 120 may be lifted by the lifting unit 131 to complete the assembly. On the one hand, need not to promote counter weight 300 more than revolving stage 200, on the other hand can conveniently accomplish the operation of most stack balancing weights on ground, consequently can simplify the operation, improve the operational safety nature.
In order to increase the moment of the balance weight 300 as much as possible, the supporting mechanism 110 includes a first connecting end for connecting the turntable 200 and a second connecting end for connecting the lifting mechanism 130 in the extending direction of the supporting mechanism 110. That is, the mounting mechanism 120 is connected to the second connection end of the support mechanism 110 away from the turntable 200 by the lifting mechanism 130 to increase the moment with the extended length of the support mechanism 110 as much as possible.
Preferably, in order to increase the stability of the support provided by the support mechanism 110 to the counterweight, the support mechanism 110 may be configured to form a triangular frame with the turntable 200 to provide stable support for the lifting mechanism 130 and the mounting mechanism 120. Specifically, the support mechanism 110 itself may be provided as a triangular frame.
In order to fully utilize the auxiliary support of the turntable 200, as shown in fig. 1, the support mechanism 110 includes a support frame and an auxiliary support member 111, a first end of the support frame in the extending direction is hinged to the turntable 200, one end of the auxiliary support member 111 is hinged to a second end of the support frame in the extending direction, and the other end is hinged to the turntable 200 above the first end. Thus, the auxiliary support 111, the support stand, and the turn table 200 together form a stable support structure of a right triangle. The auxiliary supporting member 111 is capable of bearing a tensile force, and may be of any suitable structure as long as it can bear the tensile force, such as a pulling plate or a steel cable. Furthermore, by providing the support mechanism 110 in the form of a combination of a support frame and the auxiliary support 111, a good force-receiving structure can be obtained, and a lower manufacturing cost than that of an integral triangular frame can be obtained.
For assembly, the support frame includes a main body for providing main support and transferring load, and first and second mounting seats 112 and 113 respectively disposed at both ends of the main body in an extending direction, and the first and second mounting seats 112 and 113 may be used to connect the turntable 200 and the auxiliary support 111. Specifically, as shown in fig. 3, the first mounting seat 112 is provided with a first pin hole 112a for being hinged to the turntable 200, and the second mounting seat 113 is provided with a second pin hole 113a for being hinged to the auxiliary support 111. The first and second mounting seats 112 and 113 may be hinged to the turntable 200 and the auxiliary support 111 by a pin P, respectively. In addition, the other end of the auxiliary support 111 may be hinged to the turntable 200 by a pin P. In addition, in order to facilitate the connection of the lifting mechanism 130, a third pin hole 113b for connecting the lifting mechanism 130 (e.g., the lifting unit 131) may be further provided in the second mounting base 113 so as to connect the second mounting base 113 and the lifting mechanism 130 by a pin P. Wherein a stop (e.g., a latch) may be provided on each pin P to prevent axial movement of the pin P.
As described above, the main body portion is used to receive and transmit a load, and various suitable structures can be adopted. Preferably, for increasing stability, the main body is of a truss structure and includes two main chords 114 arranged along an extending direction of the main body, and the first mounting seat 112 and the second mounting seat 113 are respectively arranged at two ends of the main chords 114. The main chord 114 is used for transmitting the pressure along the axial direction thereof, and is a main force-bearing member. To form a truss structure, straight bars 115, diagonal bars 116 may also be used to span or skew the two main chords 114 for added stability.
Thus, as shown in fig. 2 and 4, the support mechanism 110 has two first and second mounting seats 112 and 113 and two auxiliary supports 111 respectively provided at both sides of the main body, thereby connecting the support mechanism 110 to the turntable 200 from both sides of the main body.
In the present application, the specific form of the lifting mechanism 130 may be set as desired. Specifically, the lifting unit 131 can perform a dual function of lifting and connecting. In order to provide a more easily detachable connection to the mounting mechanism 120, it is preferable that one end of the lifting unit 131 is hinged to the supporting mechanism 110, and the lifting mechanism 130 includes a connecting unit 132 for connecting the other end of the lifting unit 131 with the mounting mechanism 120. Thus, the mounting mechanism may be first coupled by the coupling unit 132 to be adaptively adjusted as needed, and then the lifting unit 131 may be coupled to the coupling unit 132. The lifting unit 131 may be in any suitable form as long as the mounting mechanism 120 can be lifted, and may be, for example, a lifting cylinder, an electric pull rod, or the like.
The lifting mechanism 130 may be provided in a specific form as needed. For example, when the supporting mechanism 110 is a beam structure, the lifting mechanism 130 can be disposed at any position of the beam structure, and only one lifting unit 131 can be used, and the connecting unit 132 can be a connecting seat connected to the center of the mounting mechanism 120.
Preferably, to provide a stable connection and to smoothly lift the mounting mechanism 120 via the lifting unit 131, lifting and connection can be provided from both sides of the mounting mechanism 120. Specifically, the lifting mechanism 130 includes two lifting units 131 and two corresponding connecting units 132 respectively disposed at two sides of the mounting mechanism, and each of the connecting units 132 includes a connecting plate 132a connected to the lifting unit 131 and a tensile member 132b connecting the connecting plate 132a and the mounting mechanism 120.
The tensile member 132b may be in various forms capable of bearing tensile force, such as a pulling plate or a steel cable. In order to provide a smooth pulling force to the mounting mechanism 120, each of the connecting units 132 includes two of the pulling members 132b, and one ends of the two pulling members 132b are respectively connected to two opposite ends of the mounting mechanism 120 to form an isosceles triangle structure with the mounting mechanism 120. Thus, the mounting mechanism 120 can be smoothly pulled from the four corners of the mounting mechanism 120 by the four pull-up pieces 132 b. Moreover, by forming the isosceles triangle structure, the direction of the lifting force can be closer to the centers of the two ends of the mounting mechanism 120, and the lifting of the mounting mechanism 120 is more stable.
Further, for convenience of installation, the connection plate 132a may be provided thereon with a first installation hole H1 for connecting the lifting unit 131 and two second installation holes H2 for connecting the two tension carriers 132b, wherein, in order to provide stable connection, the first installation hole H1 and the two second installation holes H2 also form an isosceles triangle with the first installation hole H1 as an apex.
In the present application, the mounting mechanism 120 can take a variety of suitable forms, such as a box structure. Preferably, the mounting mechanism 120 can be in the form of a tray, which simplifies the structure on the one hand and facilitates attachment of the tension member 132b on the other hand.
According to another aspect of the present application, there is provided a crane, wherein the crane comprises a rotary table 200 and the counterweight device of the present application, and the support mechanism 110 is mounted to the rotary table 200 and extends rearward of the rotary table 200.
With the counterweight device 100 of the present application, the moment of the counterweight can be increased.
Further, in the conventional art, when the weight is stacked too high above the turntable 200, the weight interferes with a member such as a mast, and the mast needs to be lifted first when the weight is removed, so that a specific mounting process is required. In the crane of the present application, as shown in fig. 5, the mounting mechanism 120 is connected below the supporting mechanism 110 (i.e., below the turntable 200), so that the height of the counterweight 300 above the turntable 200 during mounting and dismounting is avoided, the difficulty and difficulty of mounting and dismounting are reduced, and a specific mounting process is not required.
The use of the counterweight device of the present application will be described below with reference to the embodiments of the drawings.
When the counterweight 300 is installed (or the counterweight 310 is added), the counterweight 300 may be first installed on the installation mechanism 120 on the ground and then lifted by the lifting unit 131.
When the counterweight 300 (or the counterweight 310) is to be removed, the mounting mechanism 120 is first lowered to the ground by the lifting unit 131, and then the removal operation can be performed on the ground.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. The present application includes the combination of individual features in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. A counterweight device characterized in that said counterweight device (100) comprises a support mechanism (110) for mounting on a turntable (200) of a crane and extending rearward of said turntable (200), a mounting mechanism (120) for mounting a counterweight (300), and a lifting mechanism (130) for connecting said mounting mechanism (120) to below said support mechanism (110), said lifting mechanism (130) comprising a lifting unit (131) for lifting said mounting mechanism (120).
2. Counterweight device according to claim 1, characterized in that said supporting means (110) comprise, in the extension direction of said supporting means (110), a first connection end for connecting said turntable (200) and a second connection end for connecting said lifting means (130).
3. The counterweight device according to claim 1, characterized in that said supporting means (110) is arranged so as to form a triangular frame with said turntable (200) to provide stable support for said lifting means (130) and mounting means (120).
4. A counterweight device according to claim 3, characterized in that said supporting means (110) comprise a supporting frame hinged at a first end in the extension direction to said turntable (200) and an auxiliary support (111) hinged at one end to a second end in the extension direction of said supporting frame and at the other end above said first end to said turntable (200).
5. The counterweight device according to claim 4, wherein the support frame includes a main body portion and a first mounting seat (112) and a second mounting seat (113) respectively provided at both ends of an extending direction of the main body portion, the first mounting seat (112) is provided with a first pin hole (112a) for being hinged with the turntable (200), and the second mounting seat (113) is provided with a second pin hole (113a) for being hinged with the auxiliary support member (111).
6. A counterweight device according to claim 5, characterized in that said main body is of truss structure and comprises two main chords (114) arranged along the extension direction of said main body, said first (112) and second (113) mounting seats being arranged at the two ends of said main chords (114), respectively.
7. A counterweight device according to claim 1, characterized in that one end of said lifting unit (131) is hinged to said supporting means (110), and said lifting means (130) comprises a connecting unit (132) for connecting the other end of said lifting unit (131) with said mounting means (120).
8. The counterweight device according to claim 7, wherein said lifting mechanism (130) includes two said lifting units (131) and two corresponding connecting units (132) respectively disposed at both sides of said mounting mechanism, each said connecting unit (132) including a connecting plate (132a) connected to said lifting unit (131) and a tension member (132b) connecting said connecting plate (132a) and said mounting mechanism (120).
9. The counterweight device according to claim 8, wherein each of said connecting units (132) comprises two of said tension members (132b), one ends of said two tension members (132b) being connected to opposite ends of said mounting mechanism (120), respectively, so as to form an isosceles triangle structure with said mounting mechanism (120).
10. A crane, characterized in that the crane comprises a turntable (200) and a counterweight arrangement according to any one of claims 1-9, the support means (110) being mounted to the turntable (200) and extending behind the turntable (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179430.6A CN114426248A (en) | 2020-10-29 | 2020-10-29 | Counterweight device and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011179430.6A CN114426248A (en) | 2020-10-29 | 2020-10-29 | Counterweight device and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114426248A true CN114426248A (en) | 2022-05-03 |
Family
ID=81309909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011179430.6A Pending CN114426248A (en) | 2020-10-29 | 2020-10-29 | Counterweight device and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114426248A (en) |
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2020
- 2020-10-29 CN CN202011179430.6A patent/CN114426248A/en active Pending
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