Loaded counterweight displacement device and operating machinery

Abstract

The present invention relates to the technical field of engineering machinery, and provides a loaded counterweight displacement device and an operating machine. The loaded counterweight displacement device comprises a counterweight assembly; a telescopic assembly, wherein the counterweight assembly is detachably arranged at the telescopic end of the telescopic assembly, and the telescopic assembly can be telescoped in a first direction; and a swing assembly, wherein the driving end of the swing assembly is connected to the telescopic assembly, and the swing assembly is used to drive the telescopic assembly to swing in a second direction, and the second direction and the first direction are located in the same horizontal plane. The present invention reduces the length of the entire vehicle when the loaded counterweight is traveling with the vehicle through the telescopic operation of the telescopic assembly, and the swing assembly can effectively adjust the position of the center of gravity of the counterweight to meet the required counterweight torque and ensure driving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a loaded counterweight displacement device and an operating machine. Background Art

[0002] With the development of the crane industry, the performance of cranes of the same tonnage is getting stronger and stronger. In order to match the high performance, the counterweight torque also needs to be increased synchronously. Generally speaking, there are two ways to increase the counterweight torque: one is to increase the weight of the counterweight, and the other is to increase the distance from the center of gravity of the counterweight to the center of rotation.

[0003] As competition becomes increasingly fierce, the layout of the vehicle is becoming more and more compact. Increasing the weight of the counterweight has been limited by the weight and space of the vehicle. However, the loaded counterweight displacement technology is not limited by the space of the vehicle. The counterweight center of gravity can be changed over a long distance through the counterweight frame and the swing frame, thereby achieving the purpose of increasing the counterweight torque.

[0004] However, traveling with a loaded counterweight will cause the vehicle to be excessively long, affecting driving safety. Summary of the invention

[0005] The present invention provides a loaded counterweight displacement device and an operating machine, which are used to solve the defect in the prior art that the loaded counterweight causes the vehicle body to be too long when traveling with the vehicle, realize the telescopic adjustment of the loaded counterweight, reduce the length of the whole vehicle, and ensure driving safety.

[0006] The present invention provides a loaded counterweight displacement device, comprising:

[0007] Counterweight assembly;

[0008] A telescopic assembly, wherein the counterweight assembly is detachably arranged at a telescopic end of the telescopic assembly, and the telescopic assembly can be telescoped along a first direction;

[0009] A swing component, a driving end of the swing component is connected to the telescopic component, and the swing component is used to drive the telescopic component to swing along a second direction, and the second direction and the first direction are located in the same horizontal plane.

[0010] According to a loaded counterweight displacement device provided by the present invention, the telescopic assembly includes a first swing frame, a second swing frame and a telescopic driving member, the first swing frame is slidably connected to the second swing frame, one of the first swing frame and the second swing frame is connected to the driving end of the telescopic driving member, and the other is connected to the fixed end of the telescopic driving member.

[0011] According to a loaded counterweight displacement device provided by the present invention, a transmission rod is provided in the first end of the first swing frame, the second end of the first swing frame is sleeved in the first end of the second swing frame, the transmission rod is arranged in a direction perpendicular to the first direction, and the driving end of the telescopic driving member is connected to the transmission rod.

[0012] According to a loaded counterweight displacement device provided by the present invention, a limiting boss is provided at the first end of the first swing frame, and the limiting boss is adapted to limit the second swing frame.

[0013] According to a loaded counterweight displacement device provided by the present invention, a first end of the first swing frame is provided with a first hanging ear, and the second swing frame is provided with a second hanging ear. The counterweight assembly is detachably connected to the first hanging ear and the second hanging ear through a bayonet.

[0014] According to a loaded counterweight displacement device provided by the present invention, the swing assembly includes a counterweight frame and a swing driving member, the first end of the counterweight frame is used to connect to the turntable, the second end of the counterweight frame is hinged to the telescopic assembly, the first end of the swing driving member is hinged to the second end of the counterweight frame, and the second end of the swing driving member is connected to the telescopic assembly.

[0015] According to a loaded counterweight displacement device provided by the present invention, a hinge seat is provided on the side of the second end of the counterweight frame, and the hinge seat is provided with a pin shaft for pinning the telescopic assembly.

[0016] According to a loaded counterweight displacement device provided by the present invention, the counterweight assembly includes a counterweight block and a counterweight tray, the counterweight block is arranged on the upper side of the counterweight tray, and the bottom side of the counterweight tray is detachably connected to the telescopic assembly.

[0017] According to a loaded counterweight displacement device provided by the present invention, the telescopic assembly is detachably connected to the swing assembly, and the swing assembly is detachably connected to the turntable.

[0018] The present invention further provides an operating machine, comprising a turntable and the loaded counterweight displacement device as described above, wherein the swing assembly is detachably connected to the turntable.

[0019] The loaded counterweight displacement device and operating machinery provided by the present invention include a counterweight assembly; a telescopic assembly, wherein the counterweight assembly is detachably arranged at the telescopic end of the telescopic assembly, and the telescopic assembly can be telescoped along a first direction; and a swing assembly, wherein the driving end of the swing assembly is connected to the telescopic assembly, and the swing assembly is used to drive the telescopic assembly to swing along a second direction, and the second direction and the first direction are located in the same horizontal plane. Through the telescopic operation of the telescopic assembly, the length of the entire vehicle when the loaded counterweight is traveling with the vehicle is reduced, and the swing assembly can effectively adjust the position of the center of gravity of the counterweight to meet the required counterweight torque and ensure driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the assembly structure of the loaded counterweight displacement device provided by the present invention;

[0022] Figure 2 It is a structural schematic diagram of a telescopic assembly in a loaded counterweight displacement device provided by the present invention in an extended state;

[0023] Figure 3 It is a structural schematic diagram of a telescopic assembly in a loaded counterweight displacement device provided by the present invention in a retracted state;

[0024] Figure 4 It is a schematic diagram of the assembly of the telescopic driving member of the telescopic assembly in the loaded counterweight displacement device provided by the present invention;

[0025] Reference numerals:

[0026] 1: counterweight block; 2: counterweight tray; 3: first swing frame;

[0027] 4: second swing frame; 5: swing drive member; 6: counterweight frame;

[0028] 7: articulated seat; 8: turntable; 9: first hanging ear;

[0029] 10: second hanging ear; 11: limiting boss; 12: pin shaft;

[0030] 13: latch; 14: telescopic drive member; 15: transmission rod. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0034] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0036] Combine the following Figures 1 to 4 A loaded counterweight displacement device of the present invention is described, comprising:

[0037] Counterweight assembly;

[0038] A telescopic component, wherein the counterweight component is detachably arranged at the telescopic end of the telescopic component, and the telescopic component can be telescoped along a first direction;

[0039] The swing assembly, the driving end of the swing assembly is connected to the telescopic assembly, and the swing assembly is used to drive the telescopic assembly to swing along the second direction, and the second direction and the first direction are located in the same horizontal plane. It can be understood that the weight assembly can increase or decrease its own weight according to actual weight requirements to improve applicability.

[0040] Furthermore, the counterweight assembly is detachably arranged at the telescopic end of the telescopic assembly, and the telescopic assembly can be telescoped along a first direction to achieve the purpose of adjusting the counterweight torque and meet the counterweight requirement. It is worth noting that the first direction in this embodiment refers to the length direction of the vehicle body. The detachable arrangement of the counterweight assembly facilitates the disassembly and assembly of the counterweight assembly, and further facilitates the separate transportation of the counterweight assembly.

[0041] Specifically, when the telescopic assembly is in the extended state, the counterweight assembly is assembled to increase the counterweight torque; the counterweight assembly is removed and the telescopic assembly is retracted, thereby effectively reducing the overall length of the vehicle body, meeting driving requirements, and improving driving safety. The structure is simple and the operation is convenient.

[0042] The driving end of the swing assembly is connected to the telescopic assembly to swing the telescopic assembly in the second direction, thereby adjusting the center of gravity of the counterweight assembly. The first direction and the second direction are located in the same horizontal plane, that is, in this embodiment, the second direction is the width direction of the vehicle body, and the swing assembly drives the telescopic assembly to swing between the first direction and the second direction to ensure stability during the driving process.

[0043] Specifically, the counterweight assembly is assembled on the telescopic assembly in the extended state. At this time, the telescopic assembly is located in the first direction. The swing assembly drives the telescopic assembly to swing from the first direction to the second direction according to the actual counterweight requirement, so as to adjust the center of gravity of the counterweight assembly and perform the operation. After completing the operation, the swing assembly drives the telescopic assembly to swing from the second direction to the first direction, so that the telescopic assembly is located in the first direction, the counterweight assembly is disassembled, and the telescopic assembly is retracted along the first direction to reduce the overall length of the vehicle body and meet the driving requirements.

[0044] According to a loaded counterweight displacement device provided by the present invention, the telescopic assembly includes a first swing frame 3, a second swing frame 4 and a telescopic drive member 14, the first swing frame 3 is slidably connected in the second swing frame 4, one of the first swing frame 3 and the second swing frame 4 is connected to the driving end of the telescopic drive member 14, and the other is connected to the fixed end of the telescopic drive member 14. It can be understood that the telescopic assembly includes the first swing frame 3, the second swing frame 4 and the telescopic drive member 14, and two telescopic assemblies are specifically provided, and are arranged in parallel and opposite to each other to improve the stable support of the counterweight assembly. The first swing frame 3 is sleeved in the second swing frame 4, and the cross-sectional size of the first swing frame 3 is smaller than the cross-sectional size of the second swing frame 4, so that the first swing frame 3 can be slidably received in the second swing frame 4.

[0045] Furthermore, the driving end of the telescopic driving member 14 is connected to the first swing frame 3, and the fixed end of the telescopic driving member 14 is connected to the second swing frame 4, or the driving end of the telescopic driving member 14 is connected to the second swing frame 4, and the fixed end of the telescopic driving member 14 is connected to the first swing frame 3, so as to drive the first swing frame 3 to extend and retract along the first direction in the second swing frame 4, thereby realizing the adjustment of the overall length of the telescopic assembly.

[0046] According to a loaded counterweight displacement device provided by the present invention, a transmission rod 15 is provided in the first end of the first swing frame 3, and the second end of the first swing frame 3 is sleeved in the first end of the second swing frame 4. The transmission rod 15 is arranged in a direction perpendicular to the first direction, and the driving end of the telescopic driving member 14 is connected to the transmission rod 15. It can be understood that the first end of the first swing frame 3 is provided with a transmission rod 15, and the two ends of the transmission rod 15 are respectively fixedly connected to the inner side wall of the first swing frame 3 on the corresponding side. The setting direction of the transmission rod 15 is set in the first direction, that is, the setting direction of the transmission rod 15 is the width direction of the vehicle body. The driving end of the telescopic driving member 14 is fixedly connected to the transmission rod 15, and the telescopic driving end of the telescopic driving member 14 acts on the transmission rod 15 through the telescopic movement of the driving end, and the transmission rod 15 drives the first swing frame 3 to move along the first direction.

[0047] In this embodiment, the telescopic driving member 14 is a telescopic oil cylinder, the installation end of the telescopic oil cylinder is located in the second swing frame 4, and its telescopic end is connected to the transmission rod 15. The telescopic oil cylinder drives the first swing frame 3 to telescopically move through the telescopic movement.

[0048] In one embodiment, a slide rail arranged along the first direction is provided in the second swing frame 4, and a slider is provided on the bottom side of the first swing frame 3. The slider and the slide rail can be slidably assembled to enable the first swing frame 3 to slide freely along the slide rail. The length of the telescopic assembly can be adjusted by manually pushing and pulling the first swing frame 3.

[0049] In one embodiment, the telescopic drive member 14 includes a rack, a gear and a motor. The rack is arranged in the second swing frame 4 along the first direction. The motor is assembled on the bottom side of the first swing frame 3, and a gear is provided at the output end of the motor. The gear is meshed with the rack. The motor drives the gear to rotate forward or reverse, and the gear rolls relative to the rack, thereby driving the first swing frame 3 to move in the second swing frame 4 along the first direction to adjust the length of the telescopic assembly.

[0050] In one embodiment, the telescopic drive member 14 includes a lead screw, a motor and a nut. The output end of the motor is connected to the lead screw and assembled in the second swing frame 4. The nut is assembled on the bottom side of the first swing frame 3 and sleeved on the lead screw. The motor drives the lead screw to rotate forward or reverse, so that the first swing frame 3 and the nut are driven, thereby adjusting the length of the telescopic assembly.

[0051] In one embodiment, the telescopic drive member 14 is a rope-row telescopic mechanism to adjust the length of the telescopic assembly.

[0052] According to a loaded counterweight displacement device provided by the present invention, a limiting boss 11 is provided at the first end of the first swing frame 3, and the limiting boss 11 is adapted to the second swing frame 4. It can be understood that a limiting boss 11 is provided on the upper side of the first end of the first swing frame 3, and the limiting boss 11 is adapted to the second swing frame 4 to prevent the first swing frame 3 from completely entering the second swing frame 4 during the process of contraction into the second swing frame 4, which affects the next use. In other words, during the process of contraction of the first swing frame 3 into the second swing frame 4, when the limiting boss 11 contacts the second swing frame 4, the contraction stops, and the limiting boss 11 is exposed on the outside of the second swing frame 4.

[0053] According to a loaded counterweight displacement device provided by the present invention, a first end of the first swing frame 3 is provided with a first hanging ear 9, a second swing frame 4 is provided with a second hanging ear 10, and a counterweight assembly is detachably connected to the first hanging ear 9 and the second hanging ear 10 through a bayonet 13. It can be understood that the first end of the first swing frame 3 is provided with two first hanging ears 9, and the two first hanging ears 9 are arranged on two opposite sides of the first end of the first swing frame 3. The second swing frame 4 is provided with two second hanging ears 10, and the two second hanging ears 10 are arranged on opposite sides of the second end of the second swing frame 4. The bottom side of the counterweight assembly is provided with a third hanging ear that is respectively matched with the first hanging ear 9 and the second hanging ear 10 in a one-to-one correspondence, and the first hanging ear 9 and the second hanging ear 10 are respectively pinned and fixed by the bayonet 13. That is to say, the counterweight assembly is overlapped on the upper side of the first swing frame 3 and the second swing frame 4, and is detachably connected through the bayonet 13, so as to ensure the stability of the counterweight assembly and facilitate disassembly and assembly.

[0054] According to a loaded counterweight displacement device provided by the present invention, the swing assembly includes a counterweight frame 6 and a swing driving member 5, the first end of the counterweight frame 6 is used to connect with the turntable 8, the second end of the counterweight frame 6 is hinged to the telescopic assembly, the first end of the swing driving member 5 is hinged to the second end of the counterweight frame 6, and the second end of the swing driving member 5 is connected to the telescopic assembly. It can be understood that the swing assembly includes the counterweight frame 6 and the swing driving member 5, and the counterweight frame 6 plays a role of transition connection. The first end of the counterweight frame 6 is used to be detachably connected to the turntable 8, and the second end of the counterweight frame 6 is hinged to the telescopic assembly. Specifically, the second end of the counterweight frame 6 is detachably hinged to the second end of the second swing frame 4.

[0055] The first end of the swing driving member 5 is hinged to the end side of the second end of the counterweight frame 6, and the second end of the swing driving member 5 is connected to the inner side wall of the second swing frame 4 in the telescopic assembly. The first end of the swing driving member 5 and the counterweight frame 6 rotate relative to each other without displacement, and the second end of the swing driving member 5 swings with the second swing frame 4 to achieve swing drive of the second swing frame 4. It is worth noting that the second end of the swing driving member 5 and the second swing frame 4 can be hinged or relatively fixedly connected.

[0056] In this embodiment, the swing driving member 5 is a swing oil cylinder, and a swing air cylinder may also be used.

[0057] According to a loaded counterweight displacement device provided by the present invention, an articulated seat 7 is provided on the side of the second end of the counterweight frame 6, and the articulated seat 7 is provided with a pin shaft 12 for pinning the telescopic assembly. It can be understood that an articulated seat 7 is provided on the side of the second end of the counterweight frame 6, and the articulated seat 7 is assembled with the second end of the second swing frame 4, and the articulated seat 7 is inserted with a pin shaft 12, so that the second end of the second swing frame 4 is hinged with the second end of the counterweight frame 6, ensuring that the second swing frame 4 can rotate relative to the counterweight frame 6, and at the same time facilitates the detachable connection between the second swing frame 4 and the counterweight frame 6.

[0058] It is worth noting that a blocking piece is provided on the upper side of the second end of the counterweight frame 6 , and the blocking piece is adapted to block the upper end of the pin shaft 12 to prevent the pin shaft 12 from jumping off the hinge seat 7 .

[0059] According to a loaded counterweight displacement device provided by the present invention, the counterweight assembly includes a counterweight block 1 and a counterweight tray 2, the counterweight block 1 is arranged on the upper side of the counterweight tray 2, and the bottom side of the counterweight tray 2 is detachably connected to the telescopic assembly. It can be understood that the counterweight assembly includes the counterweight block 1 and the counterweight tray 2, and the counterweight tray 2 is provided with a bracket for placing the counterweight block 1 to ensure the stability of the placement of the counterweight block 1. The bottom side of the counterweight tray 2 is provided with a third hanging ear, which is pin-connected with the first hanging ear 9 and the second hanging ear 10, so that the counterweight tray 2 can be detachably assembled on the upper side of the first swing frame 3 and the second swing frame 4.

[0060] It is worth noting that the weight of the counterweight can be adjusted by adjusting the number of the counterweight blocks 1. Of course, the size of the counterweight tray 2 can also be adjusted and set according to actual needs to meet the counterweight demand.

[0061] According to a loaded counterweight displacement device provided by the present invention, the telescopic assembly is detachably connected to the swing assembly, and the swing assembly is detachably connected to the turntable 8. It can be understood that the telescopic assembly is detachably connected to the swing assembly, and the swing assembly is detachably connected to the turntable 8, which is convenient for assembly and transportation.

[0062] The present invention further provides a working machine, comprising a turntable 8 and the loaded counterweight displacement device as described above, wherein the swing assembly is detachably connected to the turntable 8. It is understood that the working machine may be a crane or an excavator.

[0063] The loaded counterweight displacement device and operating machinery provided by the present invention include a counterweight assembly; a telescopic assembly, wherein the counterweight assembly is detachably arranged at the telescopic end of the telescopic assembly, and the telescopic assembly can be telescoped along a first direction; and a swing assembly, wherein the driving end of the swing assembly is connected to the telescopic assembly, and the swing assembly is used to drive the telescopic assembly to swing along a second direction, and the second direction and the first direction are located in the same horizontal plane. Through the telescopic operation of the telescopic assembly, the length of the entire vehicle when the loaded counterweight is traveling with the vehicle is reduced, and the swing assembly can effectively adjust the position of the center of gravity of the counterweight to meet the required counterweight torque and ensure driving safety.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A loaded counterweight displacement device, characterized in that: include: Counterweight assembly; A telescopic assembly, wherein the counterweight assembly is detachably arranged at a telescopic end of the telescopic assembly, and the telescopic assembly can be telescoped along a first direction; A swing assembly, wherein a driving end of the swing assembly is connected to the telescopic assembly, and the swing assembly is used to drive the telescopic assembly to swing along a second direction, wherein the second direction and the first direction are located in the same horizontal plane; The telescopic assembly is provided with two groups, and the telescopic assembly includes a first swing frame, a second swing frame and a telescopic driving member, the first swing frame is slidably connected to the second swing frame, one of the first swing frame and the second swing frame is connected to the driving end of the telescopic driving member, and the other is connected to the fixed end of the telescopic driving member; The swing assembly includes a counterweight frame, a first end of which is used to connect to a turntable, and two hinged seats are provided on the side of the second end of the counterweight frame, each of which is provided with a pin shaft, and the two groups of telescopic assemblies are pin-connected to the two hinged seats one by one through the pin shaft.

2. The loaded counterweight displacement device according to claim 1, characterized in that: A transmission rod is provided in the first end of the first swing frame, the second end of the first swing frame is sleeved in the first end of the second swing frame, the transmission rod is arranged in a direction perpendicular to the first direction, and the driving end of the telescopic driving member is connected to the transmission rod.

3. The loaded counterweight displacement device according to claim 1, characterized in that: A limiting boss is provided at the first end of the first swing frame, and the limiting boss is adapted to limit the position of the second swing frame.

4. The loaded counterweight displacement device according to claim 1, characterized in that: A first hanging ear is provided at the first end of the first swing frame, and a second hanging ear is provided at the second swing frame. The counterweight assembly is detachably connected to the first hanging ear and the second hanging ear via a bayonet.

5. The loaded counterweight displacement device according to claim 1, characterized in that: The swing assembly further comprises a swing driving member, a first end of the swing driving member is hinged to the second end of the counterweight frame, and a second end of the swing driving member is connected to the telescopic assembly.

6. The loaded counterweight displacement device according to claim 1, characterized in that: The counterweight assembly includes a counterweight block and a counterweight tray. The counterweight block is arranged on the upper side of the counterweight tray, and the bottom side of the counterweight tray is detachably connected to the telescopic assembly.

7. The loaded counterweight displacement device according to any one of claims 1 to 6, characterized in that: The telescopic assembly is detachably connected to the swing assembly, and the swing assembly is detachably connected to the turntable.

8. A working machine, characterized in that: It comprises a turntable and a loaded counterweight displacement device as claimed in any one of claims 1 to 7, wherein the swing assembly is detachably connected to the turntable.

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