Trolley type tempering furnace for variable-diameter spring

Abstract

The trolley type tempering furnace comprises a furnace body, a rail and a trolley, the rail is arranged on the furnace body, the trolley comprises a base, a mounting plate, rollers and a plurality of mounting rods, the rollers are rotationally connected to the base, the rollers are connected to the rail in a rolling mode in the direction close to or away from a furnace opening, and the mounting rods are arranged on the mounting plate. The mounting plate is arranged on the upper end face of the base, the multiple mounting rods are parallel to one another and rotationally connected to the mounting plate, and the variable-diameter springs are arranged on the mounting rods in a penetrating mode. The device has the effect that the situation that the variable-diameter spring is separated from the trolley in the trolley moving process is reduced, and therefore the safety of surrounding workers is guaranteed.

Description

Technical Field

[0001] This application relates to the field of tempering furnaces, and more particularly to a tempering furnace trolley for variable diameter springs. Background Technology

[0002] A variable diameter spring is a spring whose diameter changes along the axial direction. It belongs to the category of irregular springs and has the characteristics of excellent load-bearing capacity, good buffering effect, and strong space adaptability. The production process of variable diameter springs follows the same process as ordinary springs, which is pretreatment, rolling, annealing, quenching, tempering, surface treatment, and inspection.

[0003] Currently, Chinese utility model patent CN206089744U discloses a trolley-type tempering furnace, including a furnace body, a trolley, and a control box. The furnace body has an opening on one side, with symmetrical grooves on the inner side of the opening and a furnace door on the outer side. A lifting device is connected above the furnace door, and a track is provided below it. The inner wall of the furnace body is lined with a furnace lining, and a ventilator is located above the furnace body. The trolley is mounted on the track, and a receiving box is located on the outer side of the trolley, connected to a cam mechanism. Electric heating elements are mounted on the trolley and the furnace lining. A heat-resistant steel plate is located above the trolley, and protrusions that mate with the grooves are located on both sides of the trolley. A spring is located on the side of the furnace door, with a limiting wheel connected below the spring. An inclined limiting plate is located on the outer side of the opening. The control box is located on the outer side of the furnace body. This utility model features convenient tempering and good tempering effect.

[0004] Because the diameter of the variable-diameter spring changes along the axial direction, during the process of the trolley entering the tempering furnace, the variable-diameter spring may roll around the smaller end of the variable-diameter spring due to inertia, or even detach from the trolley, posing a threat to the personal safety of the surrounding staff. Utility Model Content

[0005] In order to reduce the risk of the variable diameter spring detaching from the trolley during its movement, thereby ensuring the safety of surrounding personnel, this application provides a tempering furnace trolley for the variable diameter spring.

[0006] This application provides a tempering furnace trolley for variable diameter springs, which adopts the following technical solution:

[0007] A tempering furnace trolley for a variable diameter spring includes a furnace body, a track, and a trolley. The track is disposed on the furnace body. The trolley includes a base, a mounting plate, rollers, and several mounting rods. The rollers are rotatably connected to the base and roll along the track in a direction close to or away from the furnace opening. The mounting plate is disposed on the upper surface of the base. The several mounting rods are parallel to each other and rotatably connected to the mounting plate. The variable diameter spring passes through the mounting rods.

[0008] By adopting the above technical solution, when the trolley needs to install a variable diameter spring, the operator can first rotate the mounting rod to place the variable diameter spring on the mounting rod, and then rotate the mounting rod to lower the height of the variable diameter spring. After that, the operator pushes the base and slides it into the furnace body through the rollers on the track. The furnace body performs a tempering operation on the variable diameter spring. After the variable diameter spring is inserted through the mounting rod, it reduces the possibility of rotation due to inertia during the movement of the trolley, and reduces the possibility of the variable diameter spring detaching from the trolley, thereby ensuring the safety of the surrounding personnel.

[0009] Optionally, the base is further provided with an abutment plate, which is used to abut the end of the mounting rod away from the rotation axis of the mounting rod. When the mounting rod abuts the abutment plate, the height of the mounting rod gradually increases along the direction from the mounting plate to the abutment plate.

[0010] By adopting the above technical solution, the abutment plate is used to abut the movement of the mounting rod away from the rotation axis of the mounting rod. When the variable diameter spring is sleeved inside the mounting rod, as the height of the mounting rod gradually increases along the direction from the mounting plate to the abutment plate, the variable diameter spring will approach the rotation axis of the mounting rod under the action of gravity, and the variable diameter spring cannot detach from the mounting rod.

[0011] Optionally, a limiting piece is provided on the mounting rod, and when the mounting rod is in a vertical state, the limiting piece abuts against the mounting plate.

[0012] By adopting the above technical solution, when the mounting rod needs to be fitted with a variable diameter spring, the mounting rod needs to be in a vertical position before the variable diameter spring can be smoothly fitted onto the mounting rod. The limiting piece abuts against the mounting plate, restricting the mounting rod from continuing to rotate away from the abutting plate, thus reducing the risk of the variable diameter spring injuring nearby workers.

[0013] Optionally, the base has a through hole.

[0014] By adopting the above technical solution, the through hole can reduce the contact between the variable diameter spring and the base, and facilitate better contact between the hot air inside the furnace and the variable diameter spring, thereby improving the tempering quality of the variable diameter spring.

[0015] Optionally, the upper end face of the mounting plate is provided with a snap-fit ​​post, and an additional placement plate for placing variable diameter springs can be installed on the trolley. The lower end face of the placement plate is provided with a snap-fit ​​groove for snapping with the snap-fit ​​post. The placement plate is also provided with a mounting plate and several mounting rods.

[0016] By adopting the above technical solution, after the mounting rod of the mounting base is filled with variable diameter springs, the worker can place the placement plate on top of the mounting plate by engaging the snap-fit ​​post and snap-fit ​​groove. The placement plate is also equipped with a mounting plate and a mounting rod. The mounting rod of the placement plate can smoothly place the variable diameter springs. The mounting plate is used to stack placement plates on top of each other, increasing the number of variable diameter springs that can be tempered in a single operation and improving work efficiency.

[0017] Optionally, the base is provided with a push handle to facilitate the user pushing it into the furnace body.

[0018] By adopting the above technical solution, the push handle is easier for workers to push into the furnace body, improving operability.

[0019] Optionally, the track is provided with a limiting component to restrict the movement of the rollers. The limiting component includes two sets of flip plates and a driving member. The flip plates are rotatably connected to the track. The flip plates are used to restrict the movement of the rollers on the track, and the driving member is used to drive the flip plates to rotate.

[0020] By adopting the above technical solution, when the worker sets the variable diameter spring sleeve on the installation rod, the limiting component is activated first, and the two sets of flip plates are rotated through the driving component, which reduces the movement of the rollers, makes it easier for the worker to rotate the installation rod, and improves the reliability of setting the variable diameter spring.

[0021] Optionally, the driving component includes a drive motor, two worm gears, and two worms. The two worm gears correspond to two tilting plates and are located on the rotation axis of the tilting plates. The two worms correspond to the two worm gears and are rotatably connected to the track. The drive motor is used to drive the two worms to rotate.

[0022] By adopting the above technical solution, when it is necessary to restrict the rotation of the roller, the drive motor is started, the drive motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the rotating plate to rotate, and the rotating plate restricts the rotation of the roller, thereby reducing the movement of the base relative to the furnace body, making it easier for the staff to put the variable diameter spring on the mounting rod.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The mounting rod is rotatably connected to the mounting plate, which makes it easy for workers to put the variable diameter spring on the mounting rod. The variable diameter spring cannot be detached from the mounting rod, which reduces the risk of the variable diameter spring detaching from the base during the movement of the base driven by the roller, thus ensuring the safety of the surrounding workers.

[0025] 2. An additional placement plate can be installed on the mounting plate, and the placement plate is also equipped with a mounting plate and a mounting rod, thereby enabling more variable diameter springs to undergo tempering operations;

[0026] 3. The limiting component is used to restrict the roller's rolling relative to the track, reducing base movement when the variable diameter spring is mounted on the mounting rod, thus ensuring worker safety. Attached Figure Description

[0027] Figure 1 It is a bogie-type tempering furnace used for variable diameter springs.

[0028] Figure 2 yes Figure 1 A schematic diagram of the structure of the platform car.

[0029] Figure 3 This is a schematic diagram showing the fit between the placement plate and the snap-fit ​​post.

[0030] Figure 4 yes Figure 1 A schematic diagram of the structure of the limiting component.

[0031] Reference numerals: 1. Furnace body; 2. Track; 3. Trolley; 31. Base; 311. Through hole; 312. Push handle; 32. Mounting plate; 33. Roller; 34. Mounting rod; 341. Limiting piece; 35. Abutment plate; 4. Snap-fit ​​post; 5. Placement plate; 51. Snap-fit ​​groove; 6. Restriction component; 61. Tilting plate; 62. Driving component; 621. Drive motor; 622. Worm gear; 623. Worm. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail.

[0033] This application discloses a bogie-type tempering furnace for variable diameter springs. (See also...) Figure 1 A trolley-type tempering furnace for variable diameter springs includes a furnace body 1, a track 2, and a trolley 3. The furnace body 1 has an opening, and the length direction of the track 2 is parallel to the depth direction of the opening of the furnace body 1. One end of the track 2 is fixedly mounted on the furnace body 1.

[0034] refer to Figure 1 and Figure 2The trolley 3 includes a base 31, two mounting plates 32, four rollers 33, several mounting rods 34, and two abutment plates 35. The base 31 is horizontally positioned. The four rollers 33 are evenly distributed on the lower end surface of the base 31 and are rotatably connected to the base 31. The rollers 33 are also rotatably connected to the track 2. The two mounting plates 32 are distributed along the length of the track 2 and are vertically positioned. The lower end surface of the mounting plates 32 is fixed to the upper end surface of the base 31. Several mounting rods 34 are evenly distributed on the mounting plates 32. The length direction of the mounting rods 34 is perpendicular to the width direction of the track 2, and the mounting rods 34 are rotatably connected to the mounting plates 35 along the width direction of the track 2. On plate 32, two abutment plates 35 are vertically arranged and located between two mounting plates 32. The abutment plates 35 are fixedly mounted on base 31. When mounting rod 34 is laid down, the end of mounting rod 34 away from the axis of rotation of mounting rod 34 abuts against abutment plate 35, and the height of mounting rod 34 gradually increases along the direction from the corresponding mounting plate 32 to abutment plate 35. Mounting rod 34 is also provided with limiting piece 341. When mounting rod 34 is in a vertical state, limiting piece 341 abuts against the side wall of mounting plate 32 away from abutment plate 35. Base 31 is provided with through hole 311 and push handle 312 for easy pushing and pulling.

[0035] refer to Figure 2 and Figure 3 The mounting plate 32 is provided with two snap-fit ​​posts 4, which are distributed along the width direction of the track 2 and are vertically arranged. The mounting plate 32 is used to install a placement plate 5 for additional variable diameter springs. The placement plate 5 is horizontally arranged and has a snap-fit ​​groove 51 on its lower end face for snap-fitting the snap-fit ​​posts 4. The placement plate 5 is also provided with two mounting plates 32, several mounting rods 34 and two abutment plates 35. The mounting plates 32, mounting rods 34 and abutment plates 35 on the placement plate 5 are connected in the same way as the mounting plates 32, mounting rods 34 and abutment plates 35 on the base 31.

[0036] refer to Figure 1 and Figure 4The track 2 is equipped with a limiting component 6 for restricting the movement of the rollers 33. The limiting component 6 includes two sets of tilting plates 61 and a driving component 62. The tilting plates 61 are rotatably connected to the track 2. The distance between the two tilting plates 61 is less than the distance between the front and rear rollers 33. The two tilting plates 61 abut against the rear of the front roller 33 and the front of the rear roller 33, respectively. The driving component 62 includes a drive motor 621, two worm gears 622, and two worms 623. The two worm gears 622 are connected to the two tilting plates 61 one by one. Correspondingly, the worm gear 622 is coaxially arranged with the tilting plate 61, and the worm gear 622 is fixedly arranged on the tilting plate 61. The two worms 623 correspond to the two worm gears 622. The worms 623 are arranged horizontally and are rotatably connected to the track 2. The worms 623 mesh with the worm gears 622. The two worm gears 622 rotate in opposite directions. The drive motor 621 is fixedly arranged on the track 2. The drive motor 621 is a double-headed motor. The two output shafts of the drive motor 621 are fixedly connected to the two worms 623 respectively.

[0037] The implementation principle of a trolley-type tempering furnace for a variable diameter spring according to an embodiment of this application is as follows: The operator first pushes the trolley 3 out of the furnace body 1, then positions the front and rear rollers 33 of the trolley 3 outside the two sets of tilting plates 61. The operator starts the drive motor 621, which drives the worm gear 623 to stand up. The worm gear 623 drives the worm wheel 622 to rotate, and the worm wheel 622 drives the tilting plate 61 to rotate. The tilting plate 61 presses the rollers 33 against each other. Then, the operator rotates the mounting rod 34 to a vertical position, and then puts the variable diameter spring on the mounting rod 34. The mounting rod 34 is then laid down until it abuts against the abutment plate 35. At this time, the variable diameter spring cannot disengage from the mounting rod 34. Then, the limiting component 6 is released. Finally, the operator can push the trolley 3 into the furnace body 1 for tempering treatment.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bogie-type tempering furnace for variable diameter springs, characterized in that: The furnace includes a furnace body (1), a track (2), and a trolley (3). The track (2) is set on the furnace body (1). The trolley (3) includes a base (31), a mounting plate (32), rollers (33), and several mounting rods (34). The rollers (33) are rotatably connected to the base (31). The rollers (33) are rolled on the track (2) in the direction close to or away from the furnace opening. The mounting plate (32) is set on the upper surface of the base (31). Several mounting rods (34) are parallel to each other and rotatably connected to the mounting plate (32). A variable diameter spring passes through the mounting rod (34).

2. A bogie-type tempering furnace for variable diameter springs according to claim 1, characterized in that: The base (31) is also provided with an abutment plate (35), which is used to abut the end of the mounting rod (34) away from the rotation axis of the mounting rod (34). When the mounting rod (34) abuts the abutment plate (35), the height of the mounting rod (34) gradually increases along the direction from the mounting plate (32) to the abutment plate (35).

3. A bogie-type tempering furnace for variable diameter springs according to claim 2, characterized in that: A limiting piece (341) is provided on the mounting rod (34). When the mounting rod (34) is in a vertical state, the limiting piece (341) abuts against the mounting plate (32).

4. A bogie-type tempering furnace for variable diameter springs according to claim 1, characterized in that: The base (31) has a through hole (311).

5. A bogie-type tempering furnace for variable diameter springs according to claim 1, characterized in that: The upper end face of the mounting plate (32) is provided with a snap-fit ​​post (4), and an additional placement plate (5) for placing variable diameter springs can be installed on the trolley (3). The lower end face of the placement plate (5) is provided with a snap-fit ​​groove (51) for snapping with the snap-fit ​​post (4). The placement plate (5) is also provided with a mounting plate (32) and several mounting rods (34).

6. A bogie-type tempering furnace for variable diameter springs according to claim 1, characterized in that: The base (31) is provided with a push handle (312) to facilitate the user to push the furnace body (1).

7. A bogie-type tempering furnace for variable diameter springs according to claim 1, characterized in that: The track (2) is provided with a limiting component (6) for restricting the movement of the roller (33). The limiting component (6) includes two sets of flip plates (61) and a driving component (62). The flip plates (61) are rotatably connected to the track (2). The flip plates (61) are used to restrict the movement of the roller (33) on the track (2). The driving component (62) is used to drive the flip plates (61) to rotate.

8. A bogie-type tempering furnace for variable diameter springs according to claim 7, characterized in that: The driving component (62) includes a drive motor (621), two worm gears (622) and two worms (623). The two worm gears (622) correspond to the two flip plates (61) and are located on the rotation axis of the flip plates (61). The two worms (623) correspond to the two worm gears (622) and are rotatably connected to the track (2). The drive motor (621) is used to drive the two worms (623) to rotate.

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