Plate spring hoisting clamp and plate spring hoisting system

Abstract

The utility model provides a plate spring lifting clamp and a plate spring lifting system.The plate spring lifting clamp comprises a base frame, a lifting assembly and a fixing assembly, the base frame is provided with a containing cavity suitable for containing a to-be-lifted plate spring, the lifting assembly is arranged on the base frame and provided with a fixing hole suitable for a lifting appliance to penetrate through, and the fixing assembly is arranged on the base frame; the fixing assembly moves to abut against the to-be-hoisted plate spring under the action of external force and is suitable for limiting movement of the to-be-hoisted plate spring. The base frame of the clamp is used for containing the plate spring to be hoisted, the plate spring is prevented from falling off in the hoisting process, the hoisting assembly is firmly connected to the base frame through the fixing holes, and it is ensured that hoisting equipment can firmly lift and move the plate spring through the fixing holes. The fixing assembly is driven to abut against the to-be-hoisted plate spring, so that the plate spring is prevented from moving in the hoisting process, and the hoisting stability is improved. According to the design, the fixing process of plate spring hoisting is simplified, meanwhile, the clamping and fixing stability is improved, and the hoisting direction can be conveniently switched in a bench test so as to adapt to different scene requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing and manufacturing, in particular to a leaf spring hoisting fixture and a leaf spring hoisting system. Background Art

[0002] With the continuous development of the automotive industry, leaf springs, as an important component of passenger cars and commercial vehicles, play a key role in automotive design and manufacturing. However, due to their large size and mass, performance and durability tests on leaf springs require specialized lifting equipment to ensure safe and efficient testing.

[0003] Traditional leaf spring lifting methods typically use simple ropes, which present several significant issues. First, ropes can easily cause the leaf spring to tip over or fall off during the lifting process, increasing safety risks for operators and potentially damaging the testing equipment and the leaf spring itself. Second, traditional leaf spring lifting methods are inefficient, failing to meet the urgent need for production efficiency in modern automotive manufacturing and increasing operator workloads.

[0004] To address these issues, current hoisting devices typically utilize hooks or clamps. However, these devices are inadequate for adapting to springs of varying shapes and sizes, lacking a flexible clamping and securing mechanism. Furthermore, during the hoisting process, there is a risk of springs falling off or becoming unstable, posing a safety challenge to the production process. Utility Model Content

[0005] Based on this, it is necessary to provide a leaf spring lifting fixture and a leaf spring lifting system to address the above problems.

[0006] The present application provides a leaf spring lifting clamp, which includes a base frame, a lifting component and a fixing component. The base frame has a accommodating cavity suitable for accommodating the leaf spring to be lifted. The lifting component is arranged on the base frame and has a fixing hole suitable for the lifting component to be passed through. The fixing component is arranged on the base frame. Under the action of external force, the fixing component moves to abut the leaf spring to be lifted, and the fixing component is suitable for limiting the movement of the leaf spring to be lifted.

[0007] In one embodiment, the base frame includes a main body and a matching piece that are slidably connected, the main body has an avoidance portion, the matching piece is arranged in the avoidance portion, and the matching piece and the avoidance portion together form the accommodating cavity.

[0008] In one embodiment, the hanging assembly is disposed on the first side of the main body, and the hanging assembly is threadedly connected to the main body.

[0009] In one embodiment, the fixing assembly includes a first fixing member and a second fixing member, and the first fixing member and the second fixing member are respectively arranged on the second side and the third side of the base frame, and the second side and the third side are two sides adjacent to the first side, and the first fixing member and the second fixing member are suitable for limiting the movement of the leaf spring to be hoisted in the first direction.

[0010] In one embodiment, a sliding groove is provided on the matching piece, and the first fixing piece and the second fixing piece pass through the main body and are connected to the sliding groove to limit the movement of the matching piece in the second direction.

[0011] In one embodiment, a third fixing member is further included. The third fixing member is arranged on a side of the first side of the main body facing the accommodating cavity, and the third fixing member is suitable for limiting the movement of the leaf spring to be hoisted in the second direction.

[0012] In one embodiment, the first fixing member and the second fixing member are coaxially arranged, and under the action of external force, the first fixing member and the second fixing member move toward each other along the axis to abut against the leaf spring to be hoisted and / or penetrate the lug of the leaf spring to be hoisted.

[0013] In one embodiment, the first fixing member and the second fixing member are threadedly connected to the main body.

[0014] In one embodiment, the third fixing member is integrated with the lifting assembly.

[0015] The present application also provides a leaf spring lifting system, including the above-mentioned leaf spring lifting fixture and a lifting device for lifting.

[0016] The above-mentioned leaf spring lifting fixture includes a base frame, a lifting assembly and a fixing assembly. The base frame has a receiving cavity suitable for accommodating the leaf spring to be lifted. The lifting assembly is arranged on the base frame and has a fixing hole suitable for the lifting fixture to pass through. The fixing assembly is arranged on the base frame. Under the action of external force, the fixing assembly moves to abut against the leaf spring to be lifted. The fixing assembly is suitable for limiting the movement of the leaf spring to be lifted. The base frame of the fixture is used to accommodate the leaf spring to be lifted and prevent the leaf spring from falling off during the lifting process. The lifting assembly is connected to the base frame and ensures that the lifting equipment can firmly lift and move the leaf spring through the fixing hole. By driving the fixing assembly to abut against the leaf spring to be lifted to achieve the fixation of the leaf spring to be lifted, unnecessary movement of the leaf spring during the lifting process is avoided, thereby improving the stability of the lifting. This design simplifies the fixing process of the leaf spring lifting while improving the stability of the clamping fixation. The lifting orientation can be easily switched during the bench test to adapt to different scene requirements.

[0017] In the leaf spring lifting system described above, the lifting equipment connects to the fixing holes on the lifting components and works in conjunction with the leaf spring lifting fixture to achieve the lifting and transportation of the leaf spring. The leaf spring lifting fixture fixes and stabilizes the leaf spring during the lifting process, preventing the leaf spring from falling off or becoming unstable during the hanging and transportation process. The fixing components of the leaf spring lifting fixture limit the movement of the leaf spring, ensuring that it maintains the desired position and orientation, while the lifting equipment is responsible for the overall hanging and moving operations. Due to the adjustable and adaptable design of the leaf spring lifting fixture, the system can be used for a variety of leaf springs of different types and sizes. This leaf spring lifting system provides a comprehensive solution for the lifting and transportation of leaf springs by integrating the leaf spring lifting fixture and lifting equipment. The system is designed to ensure safety and stability during the lifting process, while taking into account the adaptability and flexibility of different leaf springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is an overall structural diagram of a leaf spring lifting fixture provided in one embodiment of the present application;

[0019] FIG2 is a partial structural diagram of a leaf spring lifting fixture provided in one embodiment of the present application;

[0020] FIG3 is a front view of a leaf spring lifting fixture provided in one embodiment of the present application.

[0021] Description of reference numerals:

[0022] 100-base frame; 110-main body; 120-matching part; 121-slide;

[0023] 200-Lifting assembly;

[0024] 300 - fixing assembly; 310 - first fixing member; 320 - second fixing member; 330 - third fixing member. DETAILED DESCRIPTION

[0025] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0031] Referring to FIG1 , one embodiment of the present invention provides a leaf spring lifting fixture. The leaf spring lifting fixture includes a base frame 100, a lifting assembly 200, and a fixing assembly 300. The base frame 100 has a housing suitable for accommodating the leaf spring to be lifted. The lifting assembly 200 is disposed on the base frame 100 and has a fixing hole suitable for the lifting fixture to pass through. The fixing assembly 300 is disposed on the base frame 100. Under the action of an external force, the fixing assembly 300 moves to abut against the leaf spring to be lifted. The fixing assembly 300 is suitable for limiting the movement of the leaf spring to be lifted. The base frame 100 of the fixture is used to accommodate the leaf spring to be lifted and prevent it from falling off during the lifting process. The lifting assembly 200 is connected to the base frame 100 and, through the fixing hole, ensures that the lifting equipment can securely lift and move the leaf spring. By driving the fixing assembly 300 to abut against the leaf spring to be lifted, the leaf spring to be lifted is fixed, thereby preventing unnecessary movement of the leaf spring during the lifting process, thereby improving the stability of the lifting. This design simplifies the fixing process of leaf spring hoisting while improving the stability of clamping and fixing. During bench testing, the hoisting direction can be easily switched to adapt to different scenario requirements.

[0032] Referring to FIG. 1 , in one embodiment, a base frame 100 includes a slidingly connected main body 110 and a mating member 120. The main body 110 has a relief portion, and the mating member 120 is disposed within the relief portion. Together, the mating member 120 and the relief portion form a receiving cavity. The main body 110 is the primary supporting structure of the base frame 100. The sliding connection with the mating member 120 allows the receiving cavity to be adjusted as needed, enabling the leaf spring lifting fixture to accommodate leaf springs of varying sizes and types. The mating member 120 is a component that is slidingly connected to the main body 110 and disposed within the relief portion of the main body 110. Its function is to work in conjunction with the main body 110 to form a receiving cavity, ensuring that the leaf spring is securely supported within the fixture. Specifically, in this embodiment, both the main body 110 and the mating member 120 are C-shaped structures. The mating member 120 is disposed within the relief portion of the main body 110, and the openings of the main body 110 and the mating member 120 are disposed in opposite directions to form the receiving cavity.

[0033] By employing a sliding connection between the main body 110 and the mating member 120, this embodiment achieves adjustability while maintaining structural stability, thus accommodating leaf springs of varying sizes and shapes. The presence of the relief portion ensures smooth operation during the sliding connection, making the clamp more flexible and convenient during leaf spring installation. Overall, this design improves the applicability and ease of use of the leaf spring installation clamp.

[0034] Referring to Figures 1 and 3, in one embodiment, a hoisting assembly 200 is disposed on a first side of the main body 110 and is threadedly connected to the main body 110. Positioning the hoisting assembly 200 on the first side of the main body 110 provides improved balance and control during the installation of the leaf spring, helping to ensure the stability of the leaf spring during installation. The threaded connection between the hoisting assembly 200 and the main body 110 ensures a tight and reliable connection between the two. The threaded connection allows for easy tightening and loosening of the hoisting assembly 200, making assembly and disassembly of the clamp more convenient. The threaded connection allows for fine-tuning of the connection by rotating the assembly 200, allowing the operator to adjust the position or tightness of the hoisting assembly 200 as needed to accommodate leaf springs of varying sizes or weights. By positioning the hoisting assembly 200 on the first side of the main body 110 and utilizing a threaded connection, this embodiment further enhances the reliability and stability of the clamp's structure and connection.

[0035] Referring to Figures 2 and 3, in one embodiment, a fixing assembly 300 includes a first fixing member 310 and a second fixing member 320. The first fixing member 310 and the second fixing member 320 are respectively disposed on the second and third sides of the base frame 100, the second and third sides being adjacent to the first side. The first fixing member 310 and the second fixing member 320 are adapted to restrict movement of the leaf spring to be hoisted in a first direction. The first fixing member 310 is disposed on the second side of the base frame 100, which is adjacent to the first side. The first fixing member 310 and the second fixing member 320 cooperate to restrict movement of the leaf spring to be hoisted in the first direction, specifically in this embodiment. The first direction is the horizontal direction of the main body 110. Through the coordinated action of these two fixing members, the clamp can more effectively constrain the movement of the leaf spring, ensuring that the leaf spring maintains the desired position during hoisting and handling. The second and third sides are two sides perpendicularly adjacent to the first side. This layout helps to limit the movement of the leaf spring within the entire leaf spring hoisting clamp, ensuring that the clamp provides sufficient support and stability in the horizontal direction.

[0036] Referring to FIG. 2 , in one embodiment, a slide groove 121 is defined on the mating member 120. The first fixing member 310 and the second fixing member 320 are disposed through the main body 110 and engage with the slide groove 121 to limit the movement of the mating member 120 in a second direction. Specifically, in this embodiment, the second direction is the vertical direction of the main body 110. The slide groove 121 is defined on the mating member 120. In this embodiment, the slide groove 121 is specifically a groove or channel extending along a certain direction. The first fixing member 310 and the second fixing member 320 are disposed through the main body 110 and are connected to the slide groove 121 on the mating member 120. By disposing the fixing members within the slide groove 121, when the mating member 120 moves in the second direction and reaches the upper or lower limit position, the upper or lower end of the slide groove 121 abuts against the first fixing member 310 and the second fixing member 320, thereby limiting the movement of the mating member 120 in the second direction. This design effectively constrains the movement of the fitting 120 during operation, which is crucial for securing the leaf spring in the second direction during leaf spring installation and bench testing, particularly when specific displacement or vibration is required. Operators can adjust the position of the fixing member within the chute 121 to accommodate leaf springs of varying sizes and shapes, making the fixture more adaptable and adjustable, providing reliable support for leaf spring installation and testing in a variety of practical applications.

[0037] Referring to Figure 2, in one embodiment, a third fixing member 330 is further included. The third fixing member 330 is arranged on the side of the first side of the main body 110 facing the accommodating cavity. The third fixing member 330 is suitable for limiting the movement of the leaf spring to be hoisted in the second direction. Specifically in this embodiment, the third fixing member 330 is arranged on the upper wall surface in the accommodating cavity, and its extension direction is downward. Such a position setting does not hinder other functions of the clamp while limiting the movement of the leaf spring, especially when it is necessary to adjust the position of the clamp or the hoisting orientation. The third fixing member 330 works in conjunction with the first fixing member 310 and the second fixing member 320 to achieve comprehensive restriction of the movement of the leaf spring in two different directions. Through this synergistic effect, the clamp can provide more comprehensive and controllable motion limit, ensure the stability and accuracy of the leaf spring during the test, and help ensure that the clamp can provide stable and reliable support in all directions to meet the clamping requirements under different test conditions.

[0038] Referring to FIG3 , in one embodiment, the first fixing member 310 and the second fixing member 320 are coaxially arranged. Under the action of an external force, the first fixing member 310 and the second fixing member 320 move toward each other along the axis to abut against the leaf spring to be hoisted and / or the lugs of the leaf spring to be hoisted. Specifically in this embodiment, the first fixing member 310 and the second fixing member 320 are symmetrically arranged on both sides of the main body 110, and the axes of the first fixing member 310 and the second fixing member 320 are collinear. Therefore, under the action of an external force, the first fixing member 310 and the second fixing member 320 move toward each other. The leaf spring to be hoisted can be divided into a leaf spring with an lug and a leaf spring without an lug. For a leaf spring with an lug, one of the first fixing member 310 and the second fixing member 320 is passed through the lug and then abuts against the other one to fix the lug and thus fix the leaf spring. For leaf springs without lugs, the first fixing member 310 and the second fixing member 320 move simultaneously toward the leaf spring until they abut against the main body of the leaf spring, securing the leaf spring by clamping the leaf spring with the first fixing member 310 and the second fixing member 320. By adjusting the external force, the clamp can be fine-tuned relative to the axis to accommodate leaf springs of different sizes or shapes to be hoisted. By achieving the coaxial arrangement and relative movement of the first fixing member 310 and the second fixing member 320, this embodiment provides a more precise and controllable abutment mechanism in the design of the clamp, ensuring the leaf spring is firmly fixed in the clamp and improving the adaptability and adjustability of the clamp to accommodate a variety of different leaf spring structures.

[0039] In one embodiment, the first fixing member 310 and the second fixing member 320 are threadedly connected to the main body 110. Threaded connections generally have high firmness and stability. This connection method allows the connection to be tightened or loosened by rotation, provides a certain degree of flexibility, and can be quickly assembled and disassembled as needed. The threaded connection allows the relative positions of the first fixing member 310 and the second fixing member 320 and the main body 110 to be adjusted by rotation, which can be used to accommodate leaf springs of different sizes or shapes to be hoisted, and to achieve precise movement control of the leaf springs in the clamp. Due to the use of the threaded connection, this embodiment has strong adaptability and adjustability. The clamp can be quickly adjusted according to actual needs to ensure that the leaf springs to be hoisted can be firmly and reliably fixed under different conditions.

[0040] In one embodiment, the third fixing member 330 is integrally provided with the hoisting assembly 200. The third fixing member 330 and the hoisting assembly 200 are designed to be integrated, and they can share the same structure or be directly connected together. This design allows the third fixing member 330 to play an additional role in the hoisting process while being tightly integrated with the hoisting assembly 200. The hoisting assembly 200 is a component used to suspend and move the leaf spring, and generally includes a structure for connecting a sling. Specifically in this embodiment, the hoisting assembly 200 is threadedly connected to the main body 110, and the third fixing member 330 is integrally provided with the hoisting assembly 200, that is, the hoisting assembly 200 is also threadedly connected to the main body 110. By rotating the hoisting assembly 200 or the third fixing member 330, the displacement of the third fixing member 330 in the second direction or the displacement of the hoisting assembly 200 in the second direction can be achieved. The integrated design improves the overall stability of the clamp, and it is very critical to ensure the stability of the clamp during the process of hoisting and transporting the leaf spring. When integrated with the hoisting assembly 200, the third fixing member 330 and the lifting assembly 200 work together to lift and secure the leaf spring. While the lifting assembly 200 is responsible for lifting and moving the leaf spring, the third fixing member 330 provides additional support and fixation during this process. The integrated design of the lifting assembly 200 and the third fixing member 330 simplifies the overall structure of the clamp, reducing manufacturing costs while improving ease of use in clamping the leaf spring.

[0041] One embodiment of the present invention also provides a leaf spring lifting system, comprising the leaf spring lifting fixture described above, and also comprising a lifting device for lifting. The lifting device is a device used to lift, suspend, and move leaf springs. This may include cranes, hoists, slings, chains, and other lifting tools. The lifting device is connected to the fixing holes on the lifting assembly 200 and works in conjunction with the leaf spring lifting fixture to achieve the lifting and transportation of the leaf spring. The leaf spring lifting fixture plays a role in fixing and stabilizing the leaf spring during the lifting process, which can prevent the leaf spring from falling off or becoming unstable during the hanging and transportation process. The fixing assembly 300 of the leaf spring lifting fixture limits the movement of the leaf spring, ensuring that it maintains the desired position and direction, while the lifting device is responsible for the overall hanging and moving operations. Due to the adjustable and adaptable design of the leaf spring lifting fixture, the system can be applied to leaf springs of various types and sizes. The choice of lifting device can also be adjusted according to specific needs, making the entire system more flexible. This leaf spring lifting system integrates leaf spring lifting fixtures and lifting equipment to provide a comprehensive solution for lifting and handling leaf springs. The system is designed to ensure safety and stability during the lifting process, while also taking into account the adaptability and flexibility of different leaf springs.

[0042] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A leaf spring lifting fixture, characterized in that: The leaf spring lifting fixture comprises: A base frame (100), the base frame (100) having a receiving cavity suitable for receiving a leaf spring to be hoisted; A hoisting assembly (200), the hoisting assembly (200) being arranged on the base frame (100) and having a fixing hole suitable for a hoisting device to pass through; A fixing assembly (300), the fixing assembly (300) being arranged on the base frame (100), the fixing assembly (300) moving to abut against the leaf spring to be hoisted under the action of an external force, the fixing assembly (300) being suitable for limiting the movement of the leaf spring to be hoisted; The base frame (100) comprises a main body (110) and a matching piece (120) which are slidably connected, the main body (110) having an escape portion, the matching piece (120) being arranged in the escape portion, and the matching piece (120) and the escape portion together forming the accommodating cavity.

2. The leaf spring lifting fixture according to claim 1, characterized in that: The hanging assembly (200) is arranged on a first side of the main body (110), and the hanging assembly (200) is threadedly connected to the main body (110).

3. The leaf spring lifting fixture according to claim 2, characterized in that: The fixing assembly (300) comprises a first fixing member (310) and a second fixing member (320), wherein the first fixing member (310) and the second fixing member (320) are respectively arranged on a second side and a third side of the base frame (100), wherein the second side and the third side are two sides adjacent to the first side, and the first fixing member (310) and the second fixing member (320) are suitable for limiting the movement of the leaf spring to be hoisted in a first direction.

4. The leaf spring lifting fixture according to claim 3, characterized in that: The matching piece (120) is provided with a slide groove (121), and the first fixing piece (310) and the second fixing piece (320) are passed through the main body (110) and are matched and connected with the slide groove (121) to limit the movement of the matching piece (120) in the second direction.

5. The leaf spring lifting fixture according to claim 3, characterized in that: It also includes a third fixing member (330), which is arranged on a side of the first side of the main body (110) facing the accommodating cavity, and the third fixing member (330) is suitable for limiting the movement of the leaf spring to be hoisted in the second direction.

6. The leaf spring lifting fixture according to claim 3, characterized in that: The first fixing member (310) and the second fixing member (320) are coaxially arranged, and under the action of external force, the first fixing member (310) and the second fixing member (320) move toward each other along the axis to abut against the leaf spring to be hoisted and / or penetrate the lug of the leaf spring to be hoisted.

7. The leaf spring lifting fixture according to claim 3, characterized in that: The first fixing member (310) and the second fixing member (320) are threadably connected to the main body (110).

8. The leaf spring lifting fixture according to claim 5, characterized in that: The third fixing member (330) is integrally arranged with the hanging assembly (200).

9. A leaf spring lifting system, characterized in that: The invention comprises the leaf spring lifting clamp according to any one of claims 1 to 8, and also comprises a lifting device for lifting.

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