Crane and counterweight arrangement thereof
By designing a counterweight device for the crane, the intermediate counterweight is separated from the main counterweight to form a boom placement space under driving conditions. This solves the problem that the existing technology requires a transport vehicle to transport the counterweight, and achieves the effect of reducing operating costs and improving driving convenience.
Patent Information
- Application Number
- CN202520073175.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing cranes require transport vehicles to assist in the counterweight transportation process, which increases operating costs.
Design a crane counterweight device, including a main counterweight and an intermediate counterweight. By separating the intermediate counterweight from the main counterweight under the condition of travel, a space for boom placement is formed, avoiding interference between the counterweight device and the boom, and enabling self-movement.
This reduces the operating costs of transporting counterweights for cranes and improves the ease of operation and safety of cranes.
Smart Images
Figure CN223606953U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of crane equipment, and particularly relates to a crane and a counterweight device thereof. BACKGROUND
[0002] A crane is a common engineering machine in construction engineering operations and is mainly used for transferring materials. The core components of the crane are a rotating table and a boom, the fixed end of the boom is connected with the rotating table, the rotating table can drive the boom to rotate synchronously, the telescopic end of the boom is provided with a lifting hook for lifting materials, and the crane realizes the transfer of materials through the rotation of the rotating table and the telescoping of the boom. The crane has a maximum lifting weight, and once the actual material weight is greater than the maximum lifting weight, the crane will overturn, and the maximum lifting weight depends on the counterweight weight on the rotating table. Specifically, the counterweight is connected on the rotating table to adjust the lifting weight of the crane.
[0003] In the prior art, the counterweight is moved to the operation position by a transport vehicle before being connected with the rotating table, a plurality of counterweights are assembled into a counterweight device at the operation position, and finally the counterweight lifting mechanism on the rotating table is used to connect the rotating table and the counterweight device. For the above related technology, the operation of the crane needs the transport vehicle to transport the counterweight, resulting in an increase in operation cost. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present application is to provide a crane and a counterweight device thereof, and to reduce the operation cost.
[0005] In order to achieve the above purpose, the present application provides a crane counterweight device in one aspect, comprising:
[0006] a main counterweight provided with a counterweight connecting structure; and
[0007] a middle counterweight group arranged on the main counterweight, the middle counterweight group comprising a plurality of middle counterweights arranged along a first direction, wherein at least one of the middle counterweights extends along a second direction and can be separated from the main counterweight so that the crane counterweight device forms an arm placement space through along the second direction, and the first direction and the second direction are perpendicular to each other.
[0008] In some embodiments, the middle counterweights all extend along the second direction, and the end faces of the middle counterweights are flush with the end face of the main counterweight, and all the middle counterweights are arranged in sequence along the first direction.
[0009] In some embodiments, the number of the middle counterweights is four, wherein two of the middle counterweights are fixed middle counterweights, and the other two of the middle counterweights are stacked middle counterweights, the two fixed middle counterweights are arranged at intervals along the first direction, and the two stacked middle counterweights are located between the two fixed middle counterweights and can be separated from the main counterweight.
[0010] In some embodiments, the fixed intermediate counterweight is insertedly fitted with the counterweight connecting structure.
[0011] In some embodiments, the bottom of the stacked intermediate counterweight forms a fixed slot, which is insertedly fitted with the counterweight connecting structure.
[0012] In some embodiments, the crane counterweight device further comprises an upper counterweight, which is arranged on the intermediate counterweight group.
[0013] In some embodiments, the crane counterweight device further comprises a fixed counterweight, which is arranged on the upper counterweight, and a through hole is formed on the fixed counterweight, through which the counterweight lifting mechanism is connected with the counterweight connecting structure.
[0014] In some embodiments, the top of the fixed counterweight forms a positioning slot, which is clamped with the bottom of the turntable, and a plurality of fasteners are arranged on the slot bottom wall of the positioning slot, which are fastened with the turntable.
[0015] In some embodiments, the crane counterweight device further comprises a side counterweight, which is hung on the intermediate counterweight group.
[0016] Another aspect of the present application provides a crane comprising the crane counterweight device as described above.
[0017] Through the above technical solution, the crane and its counterweight device provided by the present application have the following beneficial effects:
[0018] The crane comprises a chassis, a boom and a turntable, the turntable is arranged on the chassis and is provided with a counterweight lifting mechanism for connecting the counterweight device, the counterweight lifting mechanism is connected with the counterweight device when the crane is in a working condition to avoid overturning of the crane, and the crane does not need to be connected with the counterweight device when the crane is in a running condition and the boom is in a lying arm state, wherein the running condition includes driving of the crane to a working position and transfer of the crane from one working position to another working position, and it can be seen that the counterweight device still needs to move with the crane in the running condition. In the present application, when the crane is in the running condition, the main counterweight is placed on the chassis and at least one intermediate counterweight is separated from the main counterweight to form a boom placing space, the boom in the lying arm state is prevented from interfering with the counterweight device through the boom placing space, so that the counterweight device moves with the crane, thereby eliminating the need for a transport vehicle and the crane to cooperate to transport the counterweight, and further reducing the operation cost.
[0019] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0020] The accompanying drawings are included to provide a further understanding of the embodiments of the application, and are incorporated in and constitute a part of the specification, illustrate embodiments of the application, and together with the description serve to explain the principles of the application. Other embodiments of the application will be readily apparent to those of ordinary skill in the art from this disclosure, including the drawings and specific description of the application. In the drawings:
[0021] Figure 1 Structure diagram of the working stack mode of the counterweight device according to the present application;
[0022] Figure 2 Structure diagram of the working stack mode of the counterweight device according to the present application (without fixed counterweight);
[0023] Figure 3 Structure diagram of the traveling stack mode of the counterweight device according to the present application;
[0024] Figure 4 Structure diagram of the traveling stack mode of the counterweight device according to the present application (without stack intermediate counterweight);
[0025] BRIEF DESCRIPTION OF DRAWINGS
[0026] 100, counterweight device; 1, main counterweight; 2, counterweight connecting structure; 3, intermediate counterweight group; 31, fixed intermediate counterweight; 32, stack intermediate counterweight; 33, arm support placement space; 4, upper counterweight; 5, fixed counterweight; 6, through hole; 7, positioning groove; 8, side counterweight. DETAILED DESCRIPTION
[0027] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.
[0028] The following describes the terminology part of the crane and its counterweight device 100 according to the present application with reference to the accompanying drawings.
[0029] Cranes: the crane includes a chassis, a slewing ring, an arm support, and a crane counterweight device 100, the slewing ring is arranged on the chassis and can perform a slewing motion, the fixed arm section of the arm support is connected with the slewing ring and can perform a slewing motion together with the slewing ring, the telescopic arm section of the arm support is provided with a lifting hook, the tail part of the slewing ring is provided with a counterweight lifting mechanism, the head part of the slewing ring is provided with a luffing cylinder, the counterweight lifting mechanism is used to connect with the counterweight device 100, the driving end of the luffing cylinder is connected with the fixed arm section of the arm support, and the luffing cylinder can change the luffing angle of the arm support.
[0030] Working condition of the crane: the tail part of the slewing ring is connected with the counterweight device 100, and the arm support is in a working posture.
[0031] The traveling working condition of the crane: the tail of the slewing ring is separated from the counterweight device 100, and the boom is in a prone arm posture.
[0032] As shown in Figure 1 and Figure 2 , the specific embodiments of the present application provide a crane counterweight device 100, comprising a main counterweight 1 and an intermediate counterweight group 3, wherein the main counterweight 1 is provided with a counterweight connecting structure 2; the intermediate counterweight group 3 is arranged on the main counterweight 1, and the intermediate counterweight group 3 comprises a plurality of intermediate counterweights arranged along a first direction, wherein at least one intermediate counterweight extends along a second direction and can be separated from the main counterweight 1 to form an arm placement space 33 through the main counterweight 1 along the second direction, and the first direction and the second direction are perpendicular to each other.
[0033] As can be seen, when the crane is in the working condition, the counterweight device 100 needs to be connected with the slewing ring, and after the plurality of intermediate counterweights are stacked on the main counterweight 1, they are connected with the tail of the slewing ring by the counterweight connecting structure 2; when the crane is in the traveling working condition, the counterweight device 100 needs to be separated from the slewing ring, the boom is in a prone arm posture, at least one intermediate counterweight is separated from the main counterweight 1 to form the arm placement space 33, and the remaining intermediate counterweights are stacked on the main counterweight 1 and placed on the chassis, the boom is in a prone arm posture and passes through the arm placement space 33, so as to realize traveling with load.
[0034] As shown in Figure 3 and Figure 4 , in other words, the counterweight device 100 provided by the present application has a working stacking mode corresponding to the working condition of the crane and a traveling stacking mode corresponding to the traveling working condition of the crane, and the traveling stacking mode of the counterweight device 100 is used to make the counterweight device 100 placed on the chassis not interfere with the prone arm posture of the boom, so that the crane itself can complete the transportation of the counterweight device 100, thereby making the crane not need to cooperate with the transport vehicle for operation, and further reducing the operation cost.
[0035] Specifically, the working stacking mode of the counterweight device 100 is that all the intermediate counterweights are arranged on the main counterweight 1 in the same layer; the traveling stacking mode of the counterweight device 100 is that all the intermediate counterweights are arranged on the main counterweight 1 in layers, the arm placement space 33 is formed between the two intermediate counterweights located in the bottom layer and the innermost side along the first direction, and the intermediate counterweights located in the remaining layers do not intrude into the arm placement space 33.
[0036] It should be noted that in the specific embodiment description of the present application, the first direction is the "left-right direction", the second direction is the "front-rear direction", and the "up-down direction" is also added. The "left-right direction", "front-rear direction" and "up-down direction" are as shown by the arrows in the figure. Unless otherwise stated, the terms "up", "down", "left", "right", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0037] In some embodiments, the intermediate counterweights all extend along the second direction and the end faces of the intermediate counterweights are flush with the end faces of the main counterweight 1, and all the intermediate counterweights are arranged in sequence along the first direction.
[0038] Specifically, the working stacking mode of the counterweight device 100 is that all the intermediate counterweights are arranged in sequence along the left-right direction; the front end face of each intermediate counterweight is flush with the front end face of the main counterweight 1, and the rear end face of each intermediate counterweight is flush with the rear end face of the main counterweight 1; the left end face of the intermediate counterweight located at the leftmost side is flush with the left end face of the main counterweight 1, and the right end face of the intermediate counterweight located at the rightmost side is flush with the right end face of the main counterweight 1. The working stacking mode of the counterweight device 100 provided by the present application is used to make all the intermediate counterweights be located on the upper surface of the main counterweight 1, so as to ensure that the intermediate counterweights can be stably stacked on the main counterweight 1, and thus facilitate the connection of the counterweight device 100 and the tail part of the turntable.
[0039] The working stacking mode of the counterweight device 100 is that all the intermediate counterweights are arranged in layers, the intermediate counterweight located at the lowermost layer is a fixed intermediate counterweight 31, and the intermediate counterweights located at the other layers are stacking intermediate counterweights 32. The two fixed intermediate counterweights 31 located at the innermost side along the left-right direction form an arm support placement space 33 along the front-rear direction, and the stacking intermediate counterweights 32 are all stacked above the fixed intermediate counterweights 31 along the up-down direction and do not intrude into the arm support placement space 33 along the left-right direction. The driving stacking mode of the counterweight device 100 provided by the present application is used to realize the driving of a large number of intermediate counterweights, so as to make the counterweight device 100 meet the working requirements of a large counterweight weight.
[0040] Further, the counterweight device 100 only needs to move the intermediate counterweights located at the inner side along the left-right direction to above the intermediate counterweights located at the outer side along the left-right direction to switch from the working stacking mode to the driving stacking mode. The whole switching mode is relatively simple, thereby improving the use convenience of the counterweight device 100.
[0041] In the exemplary embodiment of the present application, the number of intermediate counterweights is four, two of which are fixed intermediate counterweights 31, and the other two are stacked intermediate counterweights 32, two fixed intermediate counterweights 31 are arranged in the first direction, and two stacked intermediate counterweights 32 are located between the two fixed intermediate counterweights 31 and can be separated from the main counterweight 1.
[0042] Specifically, the operation stacking mode of the counterweight device 100 is that two fixed intermediate counterweights 31 are arranged in the left-right direction, the left end face of the fixed intermediate counterweight 31 on the left side is flush with the left end face of the main counterweight 1 in the up-down direction, the right end face of the fixed intermediate counterweight 31 on the right side is flush with the right end face of the main counterweight 1 in the up-down direction, and two stacked intermediate counterweights 32 are located between the two fixed intermediate counterweights 31, the left end face of the stacked intermediate counterweight 32 on the left side is attached to the right end face of the fixed intermediate counterweight 31 on the left side, the right end face of the stacked intermediate counterweight 32 on the right side is attached to the left end face of the fixed intermediate counterweight 31 on the right side, and the right end face of the stacked intermediate counterweight 32 on the left side is attached to the left end face of the stacked intermediate counterweight 32 on the right side.
[0043] The running stacking mode of the counterweight device 100 is that two fixed intermediate counterweights 31 are arranged in the left-right direction, the left end face of the fixed intermediate counterweight 31 on the left side is flush with the left end face of the main counterweight 1 in the up-down direction, the right end face of the fixed intermediate counterweight 31 on the right side is flush with the right end face of the main counterweight 1 in the up-down direction, and two stacked intermediate counterweights 32 are located between the two fixed intermediate counterweights 31, the left end face of the stacked intermediate counterweight 32 on the left side is attached to the right end face of the fixed intermediate counterweight 31 on the left side, the right end face of the stacked intermediate counterweight 32 on the right side is attached to the left end face of the fixed intermediate counterweight 31 on the right side, and the right end face of the stacked intermediate counterweight 32 on the left side is attached to the left end face of the stacked intermediate counterweight 32 on the right side.
[0044] It can be seen that, whether in the operation stacking mode or the running stacking mode, the projections of the fixed intermediate counterweights 31 and the stacked intermediate counterweights 32 in the up-down direction are all within the projection range of the main counterweight 1 in the up-down direction, that is, the fixed intermediate counterweights 31 and the stacked intermediate counterweights 32 do not protrude beyond the outer edge of the main counterweight 1, thereby reducing the occupied space of the counterweight device 100, and further avoiding causing the crane to be too wide to improve the running convenience of the crane.
[0045] Preferably, the counterweight connecting structure 2 is two connecting columns arranged on the main counterweight 1, the two connecting columns are symmetrically arranged on the left and right sides of the main counterweight 1, and the two fixed intermediate counterweights 31 are respectively inserted and matched with the two connecting columns. The main function of the counterweight connecting structure 2 is to connect the main counterweight 1 with the counterweight lifting mechanism, and at the same time, the counterweight connecting structure 2 can also lock the position of the fixed intermediate counterweight 31 to avoid safety accidents such as the falling of the fixed intermediate counterweight 31.
[0046] Further, the bottom of the stacking intermediate counterweight 32 forms a fixing groove capable of being plugged with the counterweight connecting structure 2. When the counterweight device 100 is in the traveling stacking mode, the fixing groove of the stacking intermediate counterweight 32 is plugged with the counterweight connecting structure 2 to avoid the safety accident of the stacking intermediate counterweight 32 falling.
[0047] Optionally, the crane counterweight device 100 further comprises an upper counterweight 4 capable of being arranged on the intermediate counterweight group 3. When the counterweight device 100 is in the working stacking mode, the upper counterweight 4 is stacked on the intermediate counterweight group 3, and the outer edge of the upper counterweight 4 coincides with the outer edge of the intermediate counterweight group 3, i.e. the upper counterweight 4 does not protrude out of the outer edge of the intermediate counterweight group 3, thereby reducing the occupied space of the counterweight device 100, and further avoiding causing the crane to be too wide to improve the traveling convenience of the crane.
[0048] Optionally, the crane counterweight device 100 further comprises a side counterweight 8 capable of being hung on the intermediate counterweight group 3. When the counterweight device 100 is in the working stacking mode, the side counterweight 8 is hung on the left and right sides of the intermediate counterweight group 3, thereby increasing the weight of the counterweight device 100, and further being suitable for the working condition of heavy lifting weight.
[0049] Optionally, the crane counterweight device 100 further comprises a fixed counterweight 5 capable of being arranged on the upper counterweight 4, and the fixed counterweight 5 is provided with a through hole 6, and the counterweight lifting mechanism is capable of being connected with the counterweight connecting structure 2 through the through hole 6. When the counterweight device 100 is in the working stacking mode, the fixed counterweight 5 is stacked on the upper counterweight 4, and the outer edge of the fixed counterweight 5 coincides with the outer edge of the upper counterweight 4, i.e. the fixed counterweight 5 does not protrude out of the outer edge of the upper counterweight 4, thereby reducing the occupied space of the counterweight device 100, and further avoiding causing the crane to be too wide to improve the traveling convenience of the crane.
[0050] Further, the top of the fixed counterweight 5 forms a positioning groove 7 capable of being clamped with the bottom of the rotary table, and the groove bottom wall of the positioning groove 7 is provided with a plurality of fasteners capable of being fastened with the rotary table. When the counterweight device 100 is in the traveling stacking mode, the fixed counterweight 5 is fastened with the tail of the rotary table through the fasteners to realize the traveling of the crane carrying the fixed counterweight 5, thereby increasing the traveling load weight of the crane.
[0051] The specific embodiments of the present application also provide a crane comprising the crane counterweight device 100 as described above. Since the crane adopts all the embodiments of the counterweight device 100, the crane has all the beneficial effects brought by the counterweight device 100.
[0052] In the description of the application, it should be understood that the terms "first", "second" are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.
[0053] In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0054] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application. In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.
[0055] Although the embodiments of the application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be construed as limiting the application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the application.
Claims
1. A counterweight arrangement for a crane, characterized in that The crane comprises a main body weight (1) provided with a weight connecting structure (2), and an intermediate weight group (3) arranged on the main body weight (1), wherein the intermediate weight group (3) comprises a plurality of intermediate weights arranged along a first direction, at least one of the intermediate weights extends along a second direction and is separable from the main body weight (1) to form an arm support placement space (33) extending along the second direction, and the first direction and the second direction are perpendicular to each other. The intermediate weights all extend along the second direction, and end faces of the intermediate weights are flush with an end face of the main body weight (1), and the intermediate weights are arranged in sequence along the first direction. The number of the intermediate weights is four, two of the intermediate weights are fixed intermediate weights (31), and the other two of the intermediate weights are stacked intermediate weights (32), the two fixed intermediate weights (31) are arranged at intervals along the first direction, and the two stacked intermediate weights (32) are arranged between the two fixed intermediate weights (31) and are separable from the main body weight (1).
2. Crane counterweight arrangement according to claim 1, characterized in that The fixed intermediate weights (31) are insertedly matched with the weight connecting structure (2).
3. The crane counterweight device of claim 2, wherein, Bottoms of the stacked intermediate weights (32) form fixed grooves which are insertedly matched with the weight connecting structure (2).
4. The crane counterweight device of claim 3, wherein, The crane weight device (100) further comprises an upper weight (4) which is arranged on the intermediate weight group (3).
5. The crane counterweight device of claim 3, wherein, The crane weight device (100) further comprises a fixed weight (5) which is arranged on the upper weight (4), and a through hole (6) is formed in the fixed weight (5), and a weight lifting mechanism is connected with the weight connecting structure (2) through the through hole (6).
6. The hoist counterweight apparatus of claim 1, wherein, A top of the fixed weight (5) forms a positioning groove (7) which is matched with a bottom of a rotary table, a plurality of fasteners are arranged on a groove bottom wall of the positioning groove (7), and the fasteners are fastened and connected with the rotary table.
7. The crane counterweight device of claim 6, wherein, The crane weight device (100) further comprises a side weight (8) which is hung on the intermediate weight group (3).
8. The crane counterweight device of claim 7, wherein, The crane comprises the crane weight device (100) according to any one of claims 1 to 9.
9. The crane counterweight device of claim 1, wherein, 10. A crane, characterized in that