Steel plate spring heat treatment uniform temperature control device

By setting up enclosed and conveying components in the heat treatment equipment, the problems of heat loss and uneven heating were solved, achieving uniform heat treatment of steel leaf springs and improving the quality of finished products.

CN223823655UActive Publication Date: 2026-01-23CANGZHOU YUNHE SPRING MFG CO LTD
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Patent Information

Application Number
CN202520236352.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2026-01-23
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

Existing heat treatment equipment suffers from severe heat loss and uneven heating during the processing of steel leaf springs, which affects the quality of the finished product.

Method used

The furnace body consists of a trough, a sealing assembly, and a conveying assembly. Heat loss is reduced by sealing the inlet and outlet and isolating the steel plate springs. Uniform heating is achieved through the U-shaped trough and chain structure of the conveying assembly.

Benefits of technology

This effectively reduces heat loss, ensures uniform heat treatment, and improves the quality of the finished product.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223823655U_ABST
    Figure CN223823655U_ABST
Patent Text Reader

Abstract

The utility model discloses a steel plate spring heat treatment uniform temperature control device which comprises a tempering furnace main body, a support is placed below the tempering furnace main body, a conveying assembly is arranged on the support and penetrates through the interior of the tempering furnace main body, sliding grooves are formed in the two sides of a through hole of the tempering furnace main body, and the sliding grooves are communicated with the tempering furnace main body. A sealing assembly in sliding fit with the sliding groove is arranged at the top end of the tempering furnace body, a heat treatment assembly is installed in the tempering furnace body, and a control center is fixedly installed on the side wall of the support. Through the arrangement of the tempering furnace main body, the sliding groove and the sealing assembly, during machining, the feeding and discharging opening is shielded, heat loss is greatly reduced, and resource waste is reduced; the steel plate springs are isolated and prevented from being blocked through the arranged conveying assembly and the U-shaped groove blocks, the steel plate springs are prevented from being blocked during heat treatment through the arranged connecting rods matched with the chains, heat treatment is more comprehensive and more uniform, and the quality of finished products is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of heat treatment processing technology, and in particular to a uniform temperature control device for heat treatment of steel leaf springs. Background Technology

[0002] The heat treatment process is a key step in the production of automotive leaf springs. Heat treatment equipment is crucial, and tempering furnaces are essential equipment for spring production.

[0003] However, existing heat treatment equipment typically uses a conveyor to perform heat treatment in a tempering furnace on an assembly line in order to improve processing efficiency. However, the inlet and outlet ports are always kept open during the conveying process, which causes heat loss and waste of resources. Furthermore, the bottom of the spring plate is blocked by the conveyor belt during the conveying process, resulting in uneven heating and affecting the quality of the finished product. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, one of the objectives of this utility model is to provide a uniform temperature control device for heat treatment of leaf springs. Through the design of the tempering furnace body, chute, and enclosed components, the inlet and outlet are blocked during processing, greatly reducing heat loss and minimizing resource waste. The conveying components isolate each leaf spring from the others using U-shaped troughs, preventing obstruction. The connecting rods and chains further ensure that the leaf springs are not obstructed during heat treatment, resulting in more comprehensive and uniform heat treatment and guaranteeing the quality of the finished product.

[0005] One of the objectives of this utility model is achieved by the following technical solution: a uniform temperature control device for heat treatment of steel leaf springs, comprising: a tempering furnace body, a support placed below the tempering furnace body, a conveying component provided on the support, the conveying component penetrating the interior of the tempering furnace body, sliding grooves opened on both sides of the through hole of the tempering furnace body, a closing component that slides with the sliding groove at the top of the tempering furnace body, a heat treatment component installed inside the tempering furnace body, and a control center fixedly installed on the side wall of the support;

[0006] The enclosed assembly includes symmetrically arranged electric telescopic rods. The bottom ends of the electric telescopic rods are fixedly connected to the top of the tempering furnace body. Connecting plates are fixedly connected to the movable ends of the two electric telescopic rods. Baffles are fixedly connected to the front and rear side walls of the connecting plates. Slide rails are fixedly connected to the opposite surfaces of the two baffles. The outer side walls of the slide rails are slidably connected to the inner side walls of the slide groove. The side walls of the baffles are all provided with slots. Through the tempering furnace body, slide groove, and enclosed assembly, during processing, when the leaf spring body undergoes heat treatment, the enclosed assembly drives the baffles on both sides to slide, blocking the remaining parts of the inlet and outlet, greatly reducing heat loss and resource waste. Through the conveying assembly, when the leaf springs are conveyed, each set of U-shaped troughs isolates each leaf spring to avoid obstruction. The connecting rods, in conjunction with the chain, prevent the leaf springs from being obstructed during heat treatment, resulting in more comprehensive and uniform heat treatment and ensuring the quality of the finished product.

[0007] According to the aforementioned heat treatment uniform temperature control device for leaf springs, the conveying assembly includes a rotating shaft symmetrically arranged front and rear. A motor is fixedly connected to the side wall of the support, and the output end of the motor is fixedly connected to one end of the rotating shaft. Both ends of the rotating shaft are respectively rotatably connected through the left and right side walls of the support. Gears are symmetrically fixed to the outer side walls of the rotating shaft, and a chain is drivingly connected between two gears on the same side. Several connecting rods are welded and fixed at equal intervals between the chains on both sides. A U-shaped groove block is welded and fixed to the outer side wall of each connecting rod, and the leaf spring body is placed in the groove of the U-shaped groove block.

[0008] According to the heat treatment uniform temperature control device for steel leaf springs, the slot corresponds to the position of the chain.

[0009] The heat treatment uniform temperature control device for steel leaf springs is provided. The heat treatment components include a circulating fan, a burner, and a thermocouple. The circulating fan is fixedly installed at the top of the interior of the tempering furnace body, and the burner and thermocouple are fixedly installed on the inner side wall of the tempering furnace body.

[0010] According to the steel leaf spring heat treatment uniform temperature control device, the control center includes an industrial computer or microcontroller, a storage device, a detection unit, and an execution unit.

[0011] According to the steel leaf spring heat treatment uniform temperature control device, the detection unit is electrically connected to a thermocouple.

[0012] According to the steel leaf spring heat treatment uniform temperature control device, the execution unit is electrically connected to the burner, circulating fan, motor, and electric telescopic rod.

[0013] According to the heat treatment uniform temperature control device for steel leaf springs, the outer wall of the tempering furnace body is provided with a heat insulation layer.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This utility model provides a three-dimensional device for uniform temperature control during the heat treatment of steel leaf springs. Figure 1 ;

[0017] Figure 2 This utility model provides a three-dimensional device for uniform temperature control during the heat treatment of steel leaf springs. Figure 2 ;

[0018] Figure 3 This is a perspective view of the conveying component of the heat treatment uniform temperature control device for steel leaf springs of this utility model.

[0019] Figure 4 This is a cross-sectional view of the heat treatment uniform temperature control device for steel leaf springs according to this utility model.

[0020] Legend:

[0021] 1. Tempering furnace body; 2. Support frame; 3. Enclosure assembly; 4. Conveying assembly; 5. Steel leaf spring body; 6. Circulating fan; 7. Control center; 8. Burner; 101. Slide rail; 301. Electric telescopic rod; 302. Connecting plate; 303. Baffle; 304. Slide rail; 305. Groove; 401. Rotating shaft; 402. Gear; 403. Chain; 404. Motor; 405. Connecting rod; 406. U-shaped trough block. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4 The present invention relates to a uniform temperature control device for heat treatment of steel leaf springs, comprising: a tempering furnace body 1, an insulation layer on the outer wall of the tempering furnace body 1, a support 2 placed below the tempering furnace body 1, a conveying component 4 on the support 2, the conveying component 4 penetrating the interior of the tempering furnace body 1, a sliding groove 101 on both sides of the through hole of the tempering furnace body 1, a sealing component 3 that slides with the sliding groove 101 at the top of the tempering furnace body 1, a heat treatment component installed inside the tempering furnace body 1, and a control center 7 fixedly installed on the side wall of the support 2;

[0024] The enclosed assembly 3 includes symmetrically arranged electric telescopic rods 301. The bottom ends of the electric telescopic rods 301 are fixedly connected to the top end of the tempering furnace body 1. The movable ends of the two electric telescopic rods 301 are fixedly connected to the connecting plates 302. The front and rear side walls of the connecting plates 302 are fixedly connected to the baffles 303. The opposite surfaces of the two baffles 303 are fixedly connected to the slide rails 304. The outer side walls of the slide rails 304 are slidably connected to the inner side walls of the slide grooves 101. The side walls of the baffles 303 are provided with slots 305.

[0025] The transmission assembly 4 includes a rotating shaft 401 symmetrically arranged front and rear. A motor 404 is fixedly connected to the side wall of the support 2, and the output end of the motor 404 is fixedly connected to one end of the rotating shaft 401. The two ends of the rotating shaft 401 are respectively rotatably connected to the left and right side walls of the support 2. Gears 402 are symmetrically fixed to the outer side walls of the rotating shaft 401. A chain 403 is connected between two gears 402 on the same side. The slot 305 corresponds to the position of the chain 403. Several connecting rods 405 are welded and fixed at equal intervals between the chains 403 on both sides. A U-shaped groove block 406 is welded and fixed to the outer side wall of the connecting rod 405. A steel leaf spring body 5 is placed in the groove of the U-shaped groove block 406.

[0026] The heat treatment assembly includes a circulating fan 6, a burner 8, and a thermocouple. The circulating fan 6 is fixedly installed at the top of the interior of the tempering furnace body 1, and the burner 8 and the thermocouple are fixedly installed on the inner side wall of the tempering furnace body 1.

[0027] The control center 7 includes an industrial computer or microcontroller, storage, a detection unit, and an execution unit. The detection unit is electrically connected to a thermocouple, and the execution unit is electrically connected to a burner 8, a circulating fan 6, a motor 404, and an electric telescopic rod 301. Through the tempering furnace body 1, the slide 101, and the sealing assembly 3, during processing, the steel leaf spring body 5 is conveyed to the interior of the tempering furnace body 1 via the conveying assembly 4 for heat treatment. Simultaneously, the electric telescopic rod 301 retracts its movable rod, and the slide rail 304 slides in conjunction with the slide 101, driving the baffles 303 on both sides to slide. The conveying assembly 4 passes through the slot 305, and the remaining parts of the inlet and outlet are blocked by the baffles 303, greatly reducing heat loss and resource waste. Through the conveying assembly 4, the steel... When the leaf springs are being transported, each leaf spring is first placed upright in the same group of U-shaped grooves 406. Each group of U-shaped grooves 406 isolates the leaf springs to prevent obstruction. Then, the motor 404 is started to drive the rotating shaft 401 to rotate, which in turn drives the gear 402 to rotate. The leaf springs are then transported to the tempering furnace via the chain 403. The connecting rod 405, in conjunction with the chain 403, ensures that the leaf springs are not obstructed during heat treatment, resulting in more comprehensive and uniform heat treatment and guaranteeing the quality of the finished product.

[0028] Working principle: During use, each leaf spring is placed upright in the same group of U-shaped slots 406. Each group of U-shaped slots 406 isolates the leaf springs to prevent obstruction. Then, the motor 404 is started to drive the rotating shaft 401 to rotate, which drives the gear 402 to rotate and transport the leaf springs to the tempering furnace through the chain 403 for heat treatment. At the same time, the electric telescopic rod 301 retracts the movable rod, and the slide rail 304 slides with the slide groove 101, which drives the baffles 303 on both sides to slide. The conveying component 4 passes through the slot 305. The rest of the inlet and outlet are blocked by the baffles 303, which greatly reduces heat loss. During heat treatment, each thermocouple transmits the detected temperature to the detection unit of the control center 7. The control center 7 analyzes and calculates the temperature through software, and then changes the rotation interval of the motor 404 through the execution unit. The control center 7 can also control the flame of the burner 8 through the execution unit to achieve temperature adjustment.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A heat treatment uniform temperature control device for steel leaf springs, comprising: The tempering furnace body (1) is characterized in that a support (2) is placed below the tempering furnace body (1), a conveying component (4) is provided on the support (2), the conveying component (4) penetrates the interior of the tempering furnace body (1), a sliding groove (101) is provided on both sides of the through hole of the tempering furnace body (1), a closing component (3) that slides and engages with the sliding groove (101) is provided at the top of the tempering furnace body (1), a heat treatment component is installed inside the tempering furnace body (1), and a control center (7) is fixedly installed on the side wall of the support (2). The enclosed assembly (3) includes symmetrically arranged electric telescopic rods (301). The bottom ends of the electric telescopic rods (301) are fixedly connected to the top end of the tempering furnace body (1). The movable ends of the two electric telescopic rods (301) are fixedly connected to connecting plates (302). The front and rear side walls of the connecting plates (302) are fixedly connected to baffles (303). The opposite surfaces of the two baffles (303) are fixedly connected to slide rails (304). The outer side walls of the slide rails (304) are slidably connected to the inner side walls of the slide grooves (101). The side walls of the baffles (303) are provided with slots (305).

2. The uniform temperature control device for heat treatment of steel leaf springs according to claim 1, characterized in that, The transmission assembly (4) includes a rotating shaft (401) arranged symmetrically at the front and back. A motor (404) is fixedly connected to the side wall of the bracket (2). The output end of the motor (404) is fixedly connected to one end of the rotating shaft (401). The two ends of the rotating shaft (401) are respectively rotatably connected to the left and right side walls of the bracket (2). Gears (402) are symmetrically fixed to the outer side walls of the rotating shaft (401). A chain (403) is connected between the two gears (402) on the same side. Several connecting rods (405) are welded and fixed at equal intervals between the chains (403) on both sides. A U-shaped groove block (406) is welded and fixed to the outer side wall of the connecting rod (405). A steel leaf spring body (5) is placed in the groove of the U-shaped groove block (406).

3. The uniform temperature control device for heat treatment of steel leaf springs according to claim 1, characterized in that, The slot (305) corresponds to the position of the chain (403).

4. The uniform temperature control device for heat treatment of steel leaf springs according to claim 1, characterized in that, The heat treatment assembly includes a circulating fan (6), a burner (8), and a thermocouple. The circulating fan (6) is fixedly installed at the top of the interior of the tempering furnace body (1), and the burner (8) and the thermocouple are fixedly installed on the inner sidewall of the tempering furnace body (1).

5. The uniform temperature control device for heat treatment of steel leaf springs according to claim 1, characterized in that, The control center (7) includes an industrial computer or microcontroller, a storage device, a detection unit, and an execution unit.

6. The uniform temperature control device for heat treatment of steel leaf springs according to claim 5, characterized in that, The detection unit is electrically connected to the thermocouple.

7. The uniform temperature control device for heat treatment of steel leaf springs according to claim 5, characterized in that, The execution unit is electrically connected to the burner (8), the circulating fan (6), the motor (404), and the electric telescopic rod (301).

8. The uniform temperature control device for heat treatment of steel leaf springs according to claim 1, characterized in that, The outer wall of the tempering furnace body (1) is provided with a heat insulation layer.