Adjustable clamping assembly for electric forklift

Abstract

The utility model relates to the technical field of clamping assemblies, in particular to an adjustable clamping assembly for an electric forklift. The adjustable clamping assembly for the electric forklift comprises a frame, a base plate is arranged in the middle of one side of the frame, clamping arms playing a clamping role are symmetrically arranged on the front portion of the frame, L-shaped clamping jaws are arranged at the ends of the clamping arms, and a driving assembly capable of driving the clamping arms to be adjusted in the horizontal width direction is arranged on the other side of the frame. One side of the frame is provided with a guide assembly capable of guiding the movement of the clamping arms, and the upper part of the base plate is provided with a linkage assembly capable of realizing the linkage effect between the clamping arms; according to the adjustable clamping assembly, due to the fact that the driving assembly, the guiding assembly and the linkage assembly are designed, stretching clamping operation of the clamping arms can be achieved through the driving assembly and the guiding assembly, synchronous linkage operation of the clamping arms can be achieved through the linkage assembly, and therefore the distance change between the clamping arms cannot generate errors.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clamping assemblies, in particular to an adjustable clamping assembly for electric forklifts. BACKGROUND

[0002] In the logistics handling process, electric forklifts are widely used in the handling of various goods as an important handling tool; however, the traditional electric forklift clamping assembly usually adopts two hydraulic cylinders to drive two clamping arms for clamping operation; due to the pressure fluctuation of the hydraulic system, the distance between the clamping arms changes and errors occur during the driving process of the two hydraulic cylinders, thereby it is difficult to form effective clamping operation on the object; this problem not only affects the handling efficiency, but also may cause damage to the goods or safety hazards. CONTENT OF THE UTILITY MODEL

[0003] The problem to be solved by the present application is that the existing electric forklift clamping assembly usually adopts two hydraulic cylinders to drive two clamping arms for clamping operation, and the distance between the clamping arms changes and errors occur during the driving process of the two hydraulic cylinders due to the pressure fluctuation of the hydraulic system, thereby causing the problem of difficult effective clamping operation on the object or damage.

[0004] To solve the above technical problems, the present application provides an adjustable clamping assembly for electric forklifts, which comprises a frame, a base plate is arranged at the center position of one side of the frame, clamping arms for clamping are symmetrically arranged at the front part of the frame, L-shaped clamping jaws are arranged at the end of the clamping arms, a driving assembly capable of driving the clamping arms to adjust the horizontal width is arranged at the other side of the frame, a guide assembly capable of guiding the movement of the clamping arms is arranged at one side of the frame, and a linkage assembly capable of realizing the linkage action between the clamping arms is arranged at the upper part of the base plate.

[0005] Since the adjustable clamping assembly of the present application is designed with a driving assembly, a guide assembly and a linkage assembly, the stretching and clamping operation of the clamping arms can be realized through the driving assembly and the guide assembly, and the synchronous linkage operation of the clamping arms can be realized through the linkage assembly, so that the distance change between the clamping arms will not produce errors, thereby solving the problem that the existing electric forklift clamping assembly usually adopts two hydraulic cylinders to drive two clamping arms for clamping operation, and the distance between the clamping arms changes and errors occur during the driving process of the two hydraulic cylinders due to the pressure fluctuation of the hydraulic system, thereby causing the problem of difficult effective clamping operation on the object or damage. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 It is a schematic diagram of the perspective structure of the embodiment.

[0007] Figure 2 It is a schematic diagram of the front view structure of the embodiment.

[0008] Figure 3 This is a top view of the structure of an embodiment.

[0009] Figure 4 This is a schematic diagram of the drive component.

[0010] Figure 5 This is a schematic diagram of the guide component.

[0011] Figure 6 This is a structural diagram of the linkage component.

[0012] In the diagram: 1. Frame; 2. Base plate; 3. Clamping arm; 4. Clamping claw; 5. Drive assembly; 6. Guide assembly; 7. Linkage assembly; 8. Sheet plate; 9. Hydraulic cylinder; 10. Connecting plate; 11. Slide rod; 12. Slider; 13. Shaft; 14. Gear; 15. Rack. Detailed Implementation

[0013] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example

[0014] This application relates to an adjustable clamping assembly for electric forklifts, such as... Figure 1 As shown, the clamping assembly includes a frame 1, which serves as the support structure for the entire clamping assembly. The frame 1 is made of high-strength material to ensure stability and safety during handling. A base plate 2 is positioned centrally on one side of the frame 1 to support and connect other components. Clamping arms 3 are symmetrically arranged at the front of the frame 1 and are adjusted horizontally via a drive assembly 5. The ends of the clamping arms 3 are equipped with L-shaped grippers 4 to accommodate goods of different shapes and sizes. The drive assembly 5 is located on the other side of the frame 1 and can drive the clamping arms 3 to adjust their horizontal width. A guide assembly 6 is located on one side of the frame 1 and guides the movement of the clamping arms 3, ensuring that the clamping arms 3 maintain a stable trajectory during adjustment. A linkage assembly 7 is located on the upper part of the base plate 2 and enables linkage between the clamping arms 3. When one clamping arm 3 moves, the linkage assembly 7 drives the other clamping arm 3 to move synchronously, thus ensuring that the distance between the two clamping arms 3 remains consistent.

[0015] The driving assembly 5 includes a shelf plate 8, a hydraulic cylinder 9 and a connecting plate 10. The shelf plate 8 is vertically arranged on one side of the frame 1 as a support structure of the driving assembly 5. The shelf plate 8 is made of high-strength material to ensure stability and load-bearing capacity during driving. The design of the shelf plate 8 enables the driving assembly 5 to be compactly integrated on the frame 1, thereby not increasing the volume of the entire clamping assembly. The hydraulic cylinder 9 is transversely arranged on the top of the shelf plate 8 as a power source for driving the movement of the clamping arm 3. Unlike the traditional double-hydraulic-cylinder 9 driving method, the present application only uses one hydraulic cylinder 9, which is connected to one of the clamping arms 3 through the connecting plate 10, thereby simplifying the structure and improving the accuracy of control. The selection of the hydraulic cylinder 9 should meet the working requirements of the clamping assembly to ensure that it can provide sufficient thrust and stroke. The connecting plate 10 is connected to the end of the hydraulic cylinder 9 and is also connected to one of the clamping arms 3. The connecting plate 10 plays a role in transmitting the thrust of the hydraulic cylinder 9, converting the thrust of the hydraulic cylinder 9 into horizontal movement of the clamping arm 3. The design of the connecting plate 10 should ensure that it has sufficient strength and rigidity to withstand the thrust of the hydraulic cylinder 9 and the reaction force of the clamping arm 3.

[0016] Working principle: When it is necessary to adjust the horizontal width of the clamping arm 3, the hydraulic cylinder 9 is started to push one of the clamping arms 3 to move through the connecting plate 10. Due to the action of the linkage assembly 7, when one side of the clamping arm 3 moves, the other side of the clamping arm 3 also moves synchronously, thereby ensuring that the gap between the two clamping arms 3 remains consistent. The guiding assembly 6 guides the movement of the clamping arm 3 to ensure that the clamping arm 3 always maintains a stable movement trajectory during adjustment.

[0017] The guiding assembly 6 includes a slide rod 11 and a slide block 12. The number of slide rods 11 is two, which are symmetrically arranged on one side of the frame 1. This symmetrical arrangement helps to maintain the balance of the two clamping arms 3 during movement. The slide rod 11 is connected to the frame 1 through a bearing seat. This connection method ensures the stability of the slide rod 11 and allows the slide rod 11 to be adjusted as needed to adapt to different working environments and clamping requirements. The slide block 12 is symmetrically arranged on the back of the clamping arm 3 and cooperates with the slide rod 11 to enable the clamping arm 3 to slide back and forth along the slide rod 11. The design of the slide block 12 should ensure that it has sufficient strength and wear resistance to withstand the friction and impact forces generated during the movement of the clamping arm 3. At the same time, the shape and size of the slide block 12 should match the slide rod 11 to ensure smooth and stable sliding.

[0018] Working principle: During actual work, when the hydraulic cylinder 9 pushes one of the clamping arms 3 to move through the connecting plate 10, the slide block 12 on the back of this clamping arm 3 will slide along the corresponding slide rod 11. Due to the action of the linkage assembly 7, the other side of the clamping arm 3 also moves synchronously, and the slide block 12 on its back also slides along the corresponding slide rod 11. In this way, the two clamping arms 3 can stably adjust the horizontal width along the predetermined trajectory under the guidance of the guiding assembly 6.

[0019] The linkage assembly 7 includes a shaft 13, a gear 14 and a rack 15. One end of the shaft 13 is vertically arranged at the center of the base plate 2 and can freely rotate around its axis. This arrangement makes the shaft 13 the rotation center of the linkage assembly 7, providing stable support for the meshing of the gear 14 and the rack 15. The other end of the shaft 13 is connected to the gear 14 through a key connection, ensuring that the gear 14 can rotate with the shaft 13. The gear 14 is connected to the other end of the shaft 13 as a transmission component of the linkage assembly 7. The design of the gear 14 should ensure that it has sufficient strength and wear resistance to withstand the friction and torque generated during meshing. At the same time, the tooth shape and module of the gear 14 should match the rack 15 to ensure the smoothness and accuracy of transmission. There are two racks 15, one on each side of the two arms. This arrangement allows the two racks 15 to mesh with the two sides of the gear 14, respectively, thereby achieving synchronous movement of the two arms 3. The two racks 15 are arranged in parallel to ensure their stability and coordination during transmission. The design of the rack 15 should also meet the requirements of strength and wear resistance to adapt to long-term and high-strength use environment.

[0020] Working principle: During actual work, when the hydraulic cylinder 9 pushes one of the arms 3 to move through the connecting plate 10, the rack 15 on one side of the arm 3 will move, driving the gear 14 meshing with it to rotate. Since the gear 14 is connected to the shaft 13 through a key connection, the shaft 13 will also rotate. The rotation of the shaft 13 further drives the gear 14 on the other side to rotate, thereby driving the rack 15 and the arm 3 on the other side to move synchronously. In this way, through the transmission action of the linkage assembly 7, the two arms 3 can achieve precise synchronous movement, ensuring the accuracy and stability of the clamping operation.

[0021] In use, according to the size of the object to be clamped, the horizontal width of the arm 3 is adjusted through the driving assembly 5. The hydraulic cylinder 9 is started, and one of the arms 3 is pushed to move through the connecting plate 10. Due to the action of the linkage assembly 7, when one side of the arm 3 moves, the other side of the arm 3 will also move synchronously, ensuring that the distance between the two arms 3 is consistent. After confirming that the distance between the arms 3 is appropriate through observation or sensing devices, the action of the hydraulic cylinder 9 is stopped, and the position of the arm 3 is locked. The electric forklift is driven to the vicinity of the object to be clamped, ensuring that the clamping jaw 4 is aligned with the object. The electric forklift is slowly moved, allowing the clamping jaw 4 to gradually approach the object until it comes into contact with the object. The position of the electric forklift is further adjusted to ensure that the clamping jaw 4 stably clamps the object. Once the object is stably clamped, the electric forklift can be driven to transport the object to the target position. After reaching the target position, the hydraulic cylinder 9 is controlled to move in the opposite direction, allowing the arm 3 to gradually loosen and release the object.

[0022] In general, terminology can be understood at least in part from usage in context. For example, terms, such as "one or more" as used herein, can be taken to describe any feature, structure, or characteristic in the singular or can be taken to describe a combination of features, structures or characteristics in the plural sense. Similarly, terms, such as "a" or "an," as used herein can be taken to convey a singular usage or a plural usage, depending at least in part on context.

[0023] It will be readily understood that the terms "on," "above," and "over," in the present disclosure, are to be interpreted in the broadest context possible so that "on" means not only "directly on" but also includes the meaning of "on" with intervening features or layers therebetween, and "above" or "over" includes not only the meaning of "above" or "over" but also can include the meaning of "above" or "over" without intervening features or layers therebetween (i.e., directly on).

[0024] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0025] Finally, it should be noted that the above-described embodiments are merely intended to illustrate the technical solutions of the present application, but not to limit the same; even though the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above-described embodiments, or equivalently replace some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An adjustable clamp assembly for an electric fork lift truck comprising a frame, characterised in that: The frame is provided with a base plate at the center of one side, and symmetrical clamping arms are arranged at the front of the frame, the ends of the clamping arms are provided with L-shaped clamping jaws, the other side of the frame is provided with a driving assembly capable of driving the clamping arms to adjust the horizontal width, one side of the frame is provided with a guide assembly capable of guiding the movement of the clamping arms, and the upper part of the base plate is provided with a linkage assembly capable of realizing linkage between the clamping arms; the guide assembly comprises two slide rods which are symmetrically arranged on one side of the frame and connected to the frame through a bearing seat; the guide assembly comprises a slide block which is symmetrically arranged on the back of the clamping arm and cooperates with the slide rod to enable the clamping arm to reciprocate along the slide rod.

2. The adjustable clamp assembly for an electric fork truck of claim 1, wherein: The driving assembly comprises a frame plate, a hydraulic cylinder and a connecting plate, the frame plate is vertically arranged on one side of the frame, the hydraulic cylinder is horizontally arranged on the top of the frame plate, the end of the hydraulic cylinder is connected with the connecting plate, and the connecting plate is connected with one of the clamping arms.

3. The adjustable clamp assembly for an electric fork truck of claim 1, wherein: The linkage assembly comprises a shaft, one end of the shaft is vertically arranged at the center of the base plate and can freely rotate around its axis, and the other end of the shaft is connected with a gear through a key connection.

4. The adjustable clamp assembly for an electric fork truck of claim 3, wherein: The linkage assembly comprises a gear and a rack, the gear is connected with the other end of the shaft through a key connection, and the rack comprises two rods which are arranged on one side of the two supporting arms.

5. The adjustable clamp assembly for an electric fork truck of claim 4, wherein: The two racks are arranged in parallel.

Images