Steel plate spring coating rack

By designing a steel leaf spring coating rack, using a hoisting frame and hydraulic push rod to drive the loading plate, and combining steel wire rope and movable adjustment components, stable hanging and efficient coating of steel leaf springs are achieved. This solves the problems of laborious operation and safety risks in existing technologies, and improves coating efficiency and product quality.

CN224142714UActive Publication Date: 2026-04-21钟祥东弹汽车零部件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-17
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Steel leaf springs are large and heavy during hanging and painting, making operation laborious and posing safety risks. They are also prone to shaking after hanging, which can lead to collisions or damage to the paint.

Method used

A steel leaf spring coating rack was designed, which uses a hoisting frame, hydraulic push rod, steel wire rope and moving adjustment component. The hydraulic push rod drives the loading plate to move down and up. The steel wire rope hanger passes through the lifting lug hole and, together with the moving adjustment component, achieves stable hoisting and avoids manual lifting and swaying.

Benefits of technology

It achieves stable hanging and efficient coating of leaf springs, avoiding laborious manual operation and safety risks, preventing collisions and paint damage caused by shaking, and improving coating efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a steel plate spring coating rack, and belongs to the technical field of steel plate springs, the steel plate spring coating rack comprises a hoisting rack, a hydraulic push rod is arranged in the middle of the upper end of the hoisting rack, a loading plate is arranged at the push rod position of the hydraulic push rod, and a plurality of cross rods distributed at equal intervals are arranged at the lower end of the loading plate; according to the steel plate spring coating rack, the situation that steel plate springs are hung through manual lifting is avoided, on the contrary, by combining the principle, the painted and dried steel plate springs are hoisted to the steel plate spring containing frame to be placed, manual carrying and placing are avoided, and after hanging is completed, an arranged hydraulic push rod is started to drive a loading plate to move upwards to reset; after the steel plate spring is hoisted, the guide butt joint seat is driven to move downwards to be inserted into the locking seat through the rotationally-arranged movable adjusting assembly, the hoisted steel plate spring can be stabilized through mutual connection of all the connecting pieces, and collision of the steel plate spring and damage of a paint surface caused by shaking are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of steel leaf spring technology, specifically to a steel leaf spring coating device rack. Background Technology

[0002] Leaf springs are the most widely used elastic element in automotive suspensions. They are an elastic beam of approximately equal strength composed of several alloy spring leaves of equal width but unequal length (thickness may be equal or unequal).

[0003] When leaf springs are dipped in paint, they are typically suspended from a rack and then transported to the dipping tank for treatment. However, loading and unloading the leaf springs from the rack requires manual lifting, which is laborious due to their large size and weight, and poses safety risks. Furthermore, the suspended leaf springs are prone to swaying, potentially causing collisions or damage to the paint surface. Therefore, we propose a leaf spring coating rack to address these shortcomings of the existing technology. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a steel leaf spring coating device rack.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel leaf spring coating device shelf.

[0006] As a preferred technical solution of this utility model, it includes a hoisting frame, a hydraulic push rod is provided at the middle of the upper end of the hoisting frame, a loading plate is provided at the push rod of the hydraulic push rod, a plurality of equally spaced crossbars are provided at the lower end of the loading plate, a connecting rod is provided at both ends of the crossbars, a steel wire rope is provided at the lower end of the connecting rod, a hanging seat is provided at the bottom end of the steel wire rope for inserting and hanging a steel leaf spring through a lug hole, a locking seat is provided at the upper end of the hanging seat and concentric with the steel wire rope, a guide docking seat slides on the outside of the steel wire rope, and a movable adjustment component is provided on the connecting rod that connects to the guide docking seat and pushes the guide docking seat to insert and dock with the locking seat.

[0007] Using the above technical solution, the hoisting frame is connected to the hoisting equipment. After the entire storage rack is moved above the leaf spring placement rack on the ground, the hydraulic push rod is activated to push the loading plate down, causing the hanger on the wire rope to move to the bottom. The flexibility of the wire rope allows the hand-held hanger to change its path and pass through the two lifting lug holes of the leaf spring, avoiding manual lifting of the leaf spring. After the hanging is completed, the hydraulic push rod is activated to move the loading plate up and reset, thus lifting the leaf spring. After lifting, the movable adjustment component is rotated to move the guide docking seat down and insert it into the locking seat. The interconnection of the various connecting parts stabilizes the lifted leaf spring and prevents it from shaking.

[0008] As a preferred embodiment of this utility model, a telescopic rod is provided at both ends of the upper surface of the hoisting frame and between the loading plate.

[0009] By adopting the above technical solution, the telescopic rod and telescopic support work together with the movement of the loading plate to improve the stability of the loading plate movement.

[0010] As a preferred embodiment of this utility model, the upper surface of the hoisting frame is provided with connecting rings symmetrically distributed on the front and rear sides.

[0011] By adopting the above technical solution, the connecting ring facilitates the connection between the hoisting equipment and the hoisting frame.

[0012] In a preferred embodiment of this invention, the connecting rod slides inside the crossbar and passes through the crossbar.

[0013] The above technical solution facilitates the adjustment of the connecting rod according to the span of the leaf spring.

[0014] As a preferred embodiment of this utility model, the upper surface of the crossbar is provided with symmetrical adjustment holes on both sides, and the upper end of the connecting rod is provided with a threaded locking rod passing through the adjustment hole, and the external thread of the threaded locking rod is connected with a locking nut.

[0015] Using the above technical solution, after the connecting rod has moved and been adjusted within the crossbar, it can be fixed by rotating the locking nut and screwing it onto the threaded locking rod.

[0016] As a preferred technical solution of this utility model, the front surface of the bracket is threadedly connected to a limiting seat.

[0017] Using the above technical solution, the limiting seat prevents the leaf spring from detaching from the hanger.

[0018] As a preferred technical solution of this utility model, the movable adjustment component includes a movable seat disposed outside the guide docking seat, the upper end of the movable seat is provided with a movable seat, the upper end of the movable seat is rotatably connected to the connecting rod by a threaded adjustment rod that passes through the connecting rod, and a plurality of telescopic rods are provided between the upper end of the movable seat and the connecting rod.

[0019] By adopting the above technical solution, while the threaded adjusting rod rotates on the movable seat, the threaded connection between the threaded adjusting rod and the connecting rod, as well as the linear extension and retraction limiting effect of the telescopic rod two on the movable seat, enables the guide docking seat on the movable seat to move along the wire rope while the threaded adjusting rod rotates, so that the guide docking seat is inserted into the locking seat, thereby limiting the hanging seat and preventing the steel leaf spring from shaking after hanging.

[0020] As a preferred embodiment of this utility model, the upper end of the threaded adjusting rod is provided with a rotating handle.

[0021] Using the above technical solution, the rotating handle makes it easy to hold and rotate the threaded adjustment rod.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. This leaf spring coating rack is connected to a hoisting device via a hoisting frame. After the entire rack is moved above the leaf spring placement rack on the ground, the hydraulic pusher is activated to move the loading plate downwards, causing the hanger on the wire rope to move to the bottom. The flexibility of the wire rope allows the hand-held hanger to change its path and pass through the two lifting lug holes of the leaf spring, avoiding manual lifting of the leaf spring. Conversely, based on the above principle, the painted and dried leaf spring is hoisted onto the leaf spring placement rack for placement, avoiding manual handling. After hoisting, the hydraulic pusher is activated to move the loading plate upwards and reset, thus lifting the leaf spring. After hoisting, the movable adjustment component is rotated to move the guide docking seat downwards and insert it into the locking seat. The interconnection of various connecting parts stabilizes the lifted leaf spring, preventing shaking that could cause collisions and damage to the paint.

[0024] 2. The steel leaf spring coating device rack has a movable adjustment mechanism within the crossbar via a connecting rod. After the adjustment is completed, the locking nut is screwed onto the threaded locking rod to fix the rod in place. This allows for easy adjustment of the two connecting rods based on the length between the leaf spring lugs, thereby adjusting the distance between the hangers. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is a side perspective view of the present invention;

[0027] Figure 3 This is a bottom-view perspective view of the present invention.

[0028] In the diagram: 1. Lifting frame; 2. Hydraulic push rod; 3. Loading plate; 4. Telescopic rod one; 5. Crossbar; 6. Connecting rod; 7. Adjusting hole; 8. Threaded locking rod; 9. Locking nut; 10. Wire rope; 11. Hanger; 12. Locking seat; 13. Guide docking seat; 14. Moving seat; 15. Movable seat; 16. Threaded adjusting rod; 17. Telescopic rod two; 18. Limiting seat. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-3 The steel leaf spring coating rack in this embodiment mainly includes a hoisting frame 1, a hydraulic push rod 2, a loading plate 3, a crossbar 5, a connecting rod 6, a wire rope 10, a hanging seat 11, a locking seat 12, a guide docking seat 13, and other components. The components cooperate with each other to achieve stable hanging and coating of the steel leaf spring.

[0031] Detailed structure and positional relationships

[0032] Lifting frame 1: The lifting frame 1 is the supporting structure of the entire device. It is made of high-strength steel. Connecting rings, also made of high-strength steel, are symmetrically distributed and fixed on the front and rear sides of the upper surface of the lifting frame 1 for connecting with the lifting equipment.

[0033] Hydraulic push rod 2: The hydraulic push rod 2 is fixed to the middle of the upper surface of the hoisting frame 1 by bolts, and is used to push the loading plate 3 to move up and down.

[0034] Loading plate 3: Loading plate 3 is installed at the push rod of hydraulic push rod 2. It is made of high-strength steel and is used to support crossbar 5 and other components.

[0035] Telescopic rod 4: Telescopic rod 4 is symmetrically installed and fixed at both ends of the upper surface of the hoisting frame 1 between the loading plate 3 and the hoisting frame 1. It is made of high-strength steel and is used to improve the stability of the movement of the loading plate 3.

[0036] Crossbar 5: Crossbar 5 is installed and fixed at equal intervals on the lower surface of the loading plate 3. It is made of high-strength steel and is used to support the connecting rod 6.

[0037] Link 6: Link 6 is a pair of links that are slidably installed inside both ends of the crossbar 5 and pass through both ends of the crossbar 5. They are made of high-strength steel. A threaded locking rod 8 is installed and fixed on the upper surface of the link 6 and passes through the adjustment holes 7 symmetrically opened on both sides of the upper surface of the crossbar 5. The threaded locking rod 8 is connected to a locking nut 9 by external thread. The locking nut 9 is used to fix the position of the link 6.

[0038] Steel wire rope 10: The upper ends of a pair of steel wire ropes 10 are respectively connected and fixed to the lower end of the two sides of the connecting rod 6. They are made of high-strength stainless steel wire rope, which has good flexibility and strength, and is used to suspend the steel leaf spring.

[0039] Hanger 11: The hanger 11 is installed and fixed at the bottom end of the wire rope 10. It is made of high-strength steel and is used to insert into the hanging ear hole of the leaf spring for hanging. The front surface of the hanger 11 is threadedly connected to the limit seat 18. The limit seat 18 is made of high-strength steel and is used to prevent the leaf spring from detaching from the hanger 11.

[0040] Locking seat 12: The locking seat 12 is installed and fixed on the upper surface of the bracket 11, and is set with the same center as the wire rope 10. It is made of high-strength steel and is used to lock with the guide docking seat 13.

[0041] Guide docking seat 13: The guide docking seat 13 is slidably installed on the outside of the wire rope 10. It is made of high-strength steel and its inner surface mates with the locking seat 12 for docking and locking.

[0042] The movable adjustment assembly includes a movable seat 14, a movable seat 15, a threaded adjustment rod 16, and a telescopic rod 17. The movable seat 14 is installed and fixed on the outside of the guide docking seat 13. It is made of high-strength steel and has a cuboid structure. The movable seat 15 is installed and fixed on the upper surface of the movable seat 14. It is also made of high-strength steel. The threaded adjustment rod 16 is rotatably installed on the upper end of the movable seat 15. It is threadedly connected to the connecting rod 6 and passes through the connecting rod 6. The telescopic rod 17 is symmetrically installed and fixed between the upper surface of the movable seat 14 and the connecting rod 6. It is made of high-strength steel and is used to limit the linear extension and retraction of the movable seat 14.

[0043] Rotary handle: The rotary handle is installed and fixed on the upper surface of the threaded adjustment rod 16. It is made of high-strength steel and is disc-shaped. It is used to facilitate hand rotation of the threaded adjustment rod 16. Multiple rubber rods are installed and fixed in a ring at equal intervals on the outside of the rotary handle to improve the hand grip and comfort.

[0044] Working principle, hanging leaf springs: The leaf spring coating rack is connected to the hoisting equipment through the connecting ring on the hoisting frame 1. It is moved above the leaf spring placement rack. The hydraulic push rod 2 is activated to push the loading plate 3 down, so that the hanging seat 11 on the wire rope 10 moves to the bottom. Due to the flexible setting of the wire rope 10, it is easy to hold the hanging seat 11 and change its path. It is hung through the lifting lug holes of the leaf spring. After the hanging is completed, the hydraulic push rod 2 is activated to drive the loading plate 3 to move up and reset, and the leaf spring is lifted.

[0045] Stabilizing the leaf spring: After suspending the leaf spring, rotate the threaded adjusting rod 16. Through the threaded connection between the threaded adjusting rod 16 and the connecting rod 6, and the linear extension and retraction limiting action of the telescopic rod 17 on the moving seat 14, the guide docking seat 13 on the moving seat 14 is driven to move along the wire rope 10, so that the guide docking seat 13 is inserted into the locking seat 12, thereby limiting the hanging seat 11 and preventing the leaf spring from shaking.

[0046] Painting operation: After the leaf spring is stably suspended, the moving device is moved to the painting station for impregnation. After the painting and drying are completed, the leaf spring is again hoisted to the leaf spring placement rack for placement through the cooperation of hydraulic push rod 2 and moving adjustment component.

[0047] Beneficial effects, efficient hanging and painting: Through the hydraulic push rod 2, steel wire rope 10, hanging seat 11 and moving adjustment component, the steel leaf spring can be hung quickly and stably, avoiding the labor and safety risks of manual hanging, and improving painting efficiency and quality.

[0048] High stability: The docking and locking design of the guide docking seat 13 and the locking seat 12 effectively prevents the steel leaf spring from shaking during hoisting and painting, avoids collisions and paint damage, and improves the product qualification rate.

[0049] High adaptability: The movable adjustment of the connecting rod 6 within the crossbar 5 ensures that after the adjustment is completed, the locking nut 9 can be screwed onto the threaded locking rod 8 to fix the connecting rod 6 after the adjustment. This allows for easy adjustment of the two connecting rods 6 according to the length between the leaf spring lugs, enabling flexible adjustment of the distance between the hangers 11. It is suitable for leaf springs of different specifications and has good versatility.

[0050] In summary, the leaf spring coating rack in this embodiment, through its reasonable design and innovative structure, achieves stable hanging and efficient coating of leaf springs, providing a reliable device for leaf spring coating with broad application prospects and market value.

[0051] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel plate spring coating apparatus rack comprising a hoisting frame, characterized in that, The upper middle part of the hoisting frame is provided with a hydraulic push rod, and a loading plate is provided at the push rod of the hydraulic push rod. The lower end of the loading plate is provided with multiple horizontal bars distributed at equal intervals. The two ends of the horizontal bars are provided with connecting rods, and the lower end of the connecting rods is provided with a steel wire rope. The bottom end of the steel wire rope is provided with a hanging seat for inserting and hanging a steel leaf spring through a lug hole. The upper end of the hanging seat is provided with a locking seat arranged concentrically with the steel wire rope. A guide docking seat slides on the outside of the steel wire rope. The connecting rod is provided with a movable adjustment component that connects to the guide docking seat and pushes the guide docking seat to insert and dock with the locking seat.

2. The leaf spring coating apparatus rack of claim 1, wherein: A telescopic rod is provided at both ends of the upper surface of the hoisting frame and between it and the loading plate.

3. The leaf spring coating apparatus rack of claim 1, wherein: The upper surface of the hoisting frame is symmetrically provided with connecting rings on the front and back sides.

4. The leaf spring coating apparatus rack of claim 1, wherein: The connecting rod slides inside the crossbar and passes through the crossbar.

5. The leaf spring coating apparatus rack of claim 1, wherein: The upper surface of the crossbar has symmetrical adjustment holes on both sides, and the upper end of the connecting rod has a threaded locking rod that passes through the adjustment hole. The threaded locking rod is connected to a locking nut by its external thread.

6. The leaf spring coating apparatus rack of claim 1, wherein: The front surface of the mount is threadedly connected to a limit seat.

7. The leaf spring coating apparatus rack of claim 1, wherein: The movable adjustment assembly includes a movable seat located outside the guide docking seat. The upper end of the movable seat is provided with a movable seat. The upper end of the movable seat is rotatably connected to the connecting rod by a threaded adjustment rod that passes through the connecting rod. Multiple telescopic rods are provided between the upper end of the movable seat and the connecting rod.

8. The leaf spring coating apparatus rack of claim 7, wherein: The upper end of the threaded adjusting rod is provided with a rotating handle.