A steel strip quenching apparatus

Abstract

The utility model discloses a steel band quenching equipment relates to steel band quenching equipment technical field, include: two tensioning mechanisms, be located between two tensioning mechanisms and distribute in order along the steel band conveying direction and draw push roller mechanism, every draw push roller mechanism includes first support, is located in the L shaped board of first support both sides, and respectively set in the roller assembly, the wedge block drive assembly of two L shaped boards before and after, still include the cam drive assembly of setting in two L shaped boards opposite side. The utility model discloses the roller assembly of setting, under the action of wedge block drive assembly, cam drive assembly, realize the intermittent roller clamp pushing process, this process not only will steel band forward push, and the operation of roller clamp pushing, further improve the flatness of steel band, and greatly reduce the risk of skidding and accumulation.

Description

Technical Field

[0001] This utility model relates to the technical field of steel strip quenching equipment, specifically a steel strip quenching equipment. Background Technology

[0002] Steel strip quenching involves heating the steel strip to the austenitizing temperature and holding it at that temperature for a period of time, then rapidly cooling it to below the martensitic transformation temperature (Ms point) within a very short time, thereby causing the transformation of austenite to martensite. Martensite is a hard and brittle structure, which is the key to obtaining high hardness in steel strips. During steel strip quenching, the coiled steel strip needs to be unrolled and allowed to enter the furnace straight.

[0003] However, due to the long-term coiling state, the existing steel strips are not well leveled by traditional roller tensioning equipment. In addition, in traditional roller conveyor, the friction between the steel strip and the roller will decrease at high temperatures, which can easily cause slippage, resulting in unstable speed and increasing the risk of steel strip accumulation.

[0004] Therefore, a steel strip quenching equipment is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a steel strip quenching device. This device, through the setting of a roller assembly, realizes an intermittent roller clamping and pushing process under the action of a wedge block transmission assembly and a cam transmission assembly. This process not only pushes the steel strip forward, but the roller clamping and pushing operation further improves the straightness of the steel strip and greatly reduces the risk of slippage and accumulation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel strip quenching device, comprising: two tensioning mechanisms; traction and pushing roller mechanisms arranged between the two tensioning mechanisms and sequentially distributed along the steel strip conveying direction; each traction and pushing roller mechanism includes a first support, L-shaped plates arranged on both sides of the first support; and a roller assembly and a wedge transmission assembly respectively arranged in front of and behind the two L-shaped plates, wherein the wedge transmission structure extends to both sides of the roller assembly and makes transmission contact with it; further comprising a cam transmission assembly arranged on opposite sides of the two L-shaped plates, wherein when the cam transmission assembly drives the roller assembly to move back and forth, the wedge transmission assembly can drive the roller assembly to perform a back clamping and forward pushing operation to realize the intermittent pushing process of the steel strip.

[0007] Preferably, the roller assembly includes a U-shaped frame fixed to the front end of the horizontal sections of two L-shaped plates. Two through holes in the U-shaped frame each house a transmission column. One end of each transmission column extends between the two L-shaped plates and contacts the cam transmission assembly, while the other end faces forward and is fixed to a transmission frame. Several rectangular slots are formed inside each horizontal section of the transmission frame. Each rectangular slot houses a first rectangular block. A first rotating shaft is rotatably mounted between two relatively distributed first rectangular blocks, and a first pressure roller is fixed to the center of each first rotating shaft. Several second rectangular blocks are fixed to the top of each horizontal section of the transmission frame, and a second rotating shaft is rotatably mounted between two relatively distributed second rectangular blocks. The assembly also includes second pressure rollers fixed to each second rotating shaft, with each second pressure roller corresponding one-to-one with a first pressure roller for clamping and pushing the steel strip.

[0008] Preferably, the wedge drive assembly includes an extension frame fixed to the upper part of the vertical section of each L-shaped plate, one end of each extension frame extending toward the roller assembly and fixed with a plurality of vertical rods, and the plurality of vertical rods corresponding one-to-one with a plurality of first rotating shafts; and a wedge body fixed to the bottom end of each vertical rod and whose height increases progressively from front to back, wherein two oppositely distributed wedge bodies are in contact with two rollers fixed to the ends of their corresponding first rotating shafts.

[0009] Preferably, the cam transmission assembly includes a transmission shaft rotatably mounted between the two horizontal sections of the L-shaped plates, on which two cam bodies are fixed; and a protrusion fixed to the end of each transmission column away from the transmission frame, wherein the protrusion can contact the protruding end of the cam body; and a first spring is provided on the outer wall of the transmission column between each protrusion and the U-shaped frame.

[0010] Preferably, a spring is connected between the top of each of the first rectangular blocks and the top of its corresponding rectangular slot.

[0011] Preferably, each of the drive shafts is further provided with a drive wheel at one end; and a drive belt is sleeved between the drive wheels; and a mounting bracket is fixed to one of the L-shaped plates, and a motor is provided in the mounting bracket, the output shaft of the motor being fixed to its corresponding drive wheel.

[0012] Preferably, each of the vertical segments of the L-shaped plate is further provided with a first vertical groove, and each first vertical groove is provided with two first sliders. A first roller is rotatably mounted between the two relatively distributed first sliders, and the two first rollers are distributed vertically and used to clamp the steel strip. A second spring is also connected between the first slider in the upper position and the top of its corresponding U-shaped frame.

[0013] Preferably, each tensioning mechanism includes a second support; a plurality of sets of vertical plates disposed on the second support, wherein each set of two oppositely distributed vertical plates has a second vertical groove, and each second vertical groove has a second slider; and a second roller body rotatably mounted between two second slider bodies, wherein the plurality of second roller bodies are staggered vertically; and further includes an electric telescopic rod disposed at the top of each vertical groove, wherein the output end of the electric telescopic rod is fixed to its corresponding second slider body.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this invention, the cam transmission assembly drives the roller assembly to move back and forth, while the wedge block transmission assembly drives the roller assembly to perform a back-clamping and forward-pushing operation. This operation not only intermittently pushes the steel strip forward to ensure the quenching reaction of the steel strip, but also the back-and-forth pulling operation further improves the straightness of the steel strip. This intermittent roller clamping and pushing process can effectively prevent the steel strip from accumulating, wrinkling and other "steel piling" accidents in the heating furnace. Moreover, the roller clamping and pushing provides a front-side biting drive, fundamentally avoiding the risk of slippage and accumulation. Attached Figure Description

[0016] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a side view of the structure of this utility model;

[0019] Figure 4 for Figure 1 Enlarged structural diagram of the intermediate tensioning mechanism;

[0020] Figure 5 for Figure 2 Enlarged schematic diagram of the traction pusher roller mechanism;

[0021] Figure 6 for Figure 1 Enlarged schematic diagram of the traction pusher roller mechanism;

[0022] Figure 7 for Figure 6 A magnified structural diagram of point A in the middle.

[0023] In the diagram: 111, Second support; 112, Vertical plate; 113, Second slider; 114, Second roller; 115, Electric telescopic rod; 211, First support; 212, L-shaped plate; 213, First vertical groove; 214, First slider; 215, First roller; 216, Second spring; 217, U-shaped frame; 218, Transmission column; 219, Transmission frame; 220, Rectangular groove; 221, First rectangular block; 222, First rotating shaft; 223, First pressure roller; 224, Second rectangular block; 225, Second rotating shaft; 226, Second pressure roller; 227, Extension frame; 228, Vertical rod; 229, Wedge block body; 230, Roller; 231, Drive shaft; 232, Cam body; 233, Protrusion; 234, First spring; 235, Mounting bracket; 236, Drive wheel; 237, Drive belt; 238, Motor. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] Please see Figures 1 to 7 The present invention preferably provides the following technical solution: a steel strip quenching device, comprising: two tensioning mechanisms; a traction pushing roller mechanism disposed between the two tensioning mechanisms and distributed sequentially along the steel strip conveying direction; each traction pushing roller mechanism comprising a first support 211, L-shaped plates 212 disposed on both sides of the first support 211; and a roller assembly and a wedge transmission assembly respectively disposed in front of and behind the two L-shaped plates 212, wherein the wedge transmission structure extends to both sides of the roller assembly and is in transmission contact with it; further comprising a cam transmission assembly disposed on opposite sides of the two L-shaped plates 212, wherein when the cam transmission assembly drives the roller assembly to move back and forth, the wedge transmission assembly can drive the roller assembly to perform a back clamping and forward pushing operation to realize the intermittent pushing process of the steel strip.

[0027] In this embodiment, the traction pushing roller mechanism is preferably two placed side by side between the two tensioning mechanisms. It is worth noting that the two tensioning mechanisms can be assembled at a specific stage of the quenching process, such as before entering the quenching tank after homogenization. The tensioning mechanism and the traction pushing roller mechanism can apply an appropriate and controllable tension to the steel strip. This tension can effectively "straighten" the steel strip, ensure the straightness of the steel strip, and improve the quenching quality.

[0028] Among them, the two L-shaped plates 212 where the traction push roller mechanism is located, such as Figure 1 , 2 As shown in Figures 3, 5, and 6, a wedge drive assembly and a roller assembly are sequentially arranged along the conveying direction of the steel strip. The wedge drive assembly located at the rear can make transmission contact with the roller assembly located at the front. When the cam drive assembly drives the roller assembly to move back and forth, the wedge drive assembly can drive the roller assembly to perform a rear clamping and forward pushing operation. This operation not only pushes the steel strip forward intermittently to ensure the quenching reaction of the steel strip, but also the back-and-forth pulling operation further improves the straightness of the steel strip. This intermittent roller clamping and pushing process can effectively prevent the steel strip from accumulating, wrinkling, and other "steel piling" accidents in the heating furnace. Moreover, the roller clamping and pushing provides a frontal biting drive, fundamentally avoiding the risk of slippage and accumulation.

[0029] Furthermore, the roller assembly includes a U-shaped frame 217 fixed to the front end of the horizontal section of the two L-shaped plates 212. Two through holes are provided in the U-shaped frame 217, each containing a transmission post 218. One end of each transmission post 218 extends between the two L-shaped plates 212 and contacts the cam transmission assembly, while the other end faces forward and is fixed to a transmission frame 219. Several rectangular slots 220 are formed inside the horizontal section of each transmission frame 219. Each rectangular slot 220 contains a first rectangular block 221. Two relatively distributed... A first rotating shaft 222 is rotatably mounted between the first rectangular blocks 221, and a first pressure roller 223 is fixed in the middle of each first rotating shaft 222; and a plurality of second rectangular blocks 224 are fixed to the top of the horizontal section of each transmission frame 219, and a second rotating shaft 225 is rotatably mounted between two relatively distributed second rectangular blocks 224; and a second pressure roller 226 is fixed on each second rotating shaft 225, and the plurality of second pressure rollers 226 correspond one-to-one with the plurality of first pressure rollers 223 and are used for clamping and pushing steel strips.

[0030] Furthermore, the wedge drive assembly includes an extension frame 227 fixed to the upper part of the vertical section of each L-shaped plate 212, with one end of each extension frame 227 extending toward the roller assembly and fixed with a plurality of vertical rods 228, and the plurality of vertical rods 228 corresponding one-to-one with a plurality of first rotating shafts 222; and a wedge body 229 fixed to the bottom end of each vertical rod 228 and whose height increases progressively from front to back, wherein two oppositely distributed wedge bodies 229 contact two rollers 230 fixed to the ends of their corresponding first rotating shafts 222.

[0031] Furthermore, the cam transmission assembly includes a transmission shaft 231 rotatably mounted between the horizontal sections of the two L-shaped plates 212, with two cam bodies 232 fixed on the transmission shaft 231; and a protrusion 233 fixed to one end of each transmission post 218 away from the transmission frame 219, and the protrusion 233 can contact the protruding end where the cam body 232 is located; a first spring 234 is provided on the outer wall of the transmission post 218 between each protrusion 233 and the U-shaped frame 217.

[0032] like Figure 5 , 6 As shown in Figure 7, one end of each of the two transmission frames 219 is fixed to one of the two transmission columns 218, and the first rectangular blocks 221 inside the other end are equipped with first pressure rollers 223 through the first rotating shaft 222. The second rectangular blocks 224 on the top of the transmission frame 219 are equipped with second pressure rollers 226 through the second rotating shaft 225. The second pressure rollers 226 correspond one-to-one with the first pressure rollers 223 and are used for the roller clamping and pushing of the steel strip.

[0033] The wedge drive assembly includes two extension frames 227 in a fixed state, several vertical rods 228 and several wedge bodies 229, wherein the height of each wedge body 229 increases gradually from front to back and makes drive contact with the roller 230 fixed at the end of the first rotating shaft 222.

[0034] The cam body 232, where the cam transmission assembly is located, contacts the protrusion 233 fixed at the end of the transmission column 218 away from the transmission frame 219. With the cooperation of the first spring 234, when the cam body 232, where the cam transmission assembly is located, rotates, when the protrusion of the cam body 232 contacts the protrusion 233, it can push the transmission column 218 forward. Then the transmission frame 219, the first rectangular block 221, and the second rectangular block 224 move forward accordingly. Conversely, when the cam body 232, where the cam transmission assembly is located, disengages from the protrusion 233 fixed at the end of the transmission column 218 away from the transmission frame 219, under the action of the first spring 234, the transmission frame 219, the first rectangular block 221, and the second rectangular block 224 move backward accordingly.

[0035] Since the first rotating shaft 222 is rotatably installed inside the two relatively distributed first rectangular blocks 221, and the rollers 230 at its ends are in contact with the wedge body 229, when the first rectangular blocks 221 move backward, the first pressure rollers 223 can move towards the second pressure roller 226 and clamp the steel strip. When the first rectangular blocks 221 move forward, the first pressure rollers 223 move away from the second pressure roller 226 by gravity and gradually loosen the steel strip. During the intermittent back-and-forth movement of the cam transmission assembly driving the first pressure rollers 223, the first pressure rollers 223 can adaptably move towards or away from the second pressure roller 226, thereby realizing the back clamping and forward pushing process of the first pressure rollers 223 and the second pressure roller 226.

[0036] Furthermore, a spring tab connects the top of each first rectangular block 221 to the top of its corresponding rectangular slot 220, such as... Figure 5 As shown, in order to improve the reset effect of the first rectangular block 221, a spring piece is provided on the top of the first rectangular block 221 to facilitate the timely reset of the first rectangular block 221.

[0037] Furthermore, each drive shaft 231 is also fixed to one end with a drive wheel 236; and a drive belt 237 is sleeved between several drive wheels 236; it also includes a mounting bracket 235 fixed on one of the L-shaped plates 212, and a motor 238 is provided inside the mounting bracket 235, the output shaft of the motor 238 being fixed to its corresponding drive wheel 236, such as Figure 1 , 6 As shown, this is to achieve the synchronous driving process of several cam transmission components.

[0038] Furthermore, each L-shaped plate 212 has a first vertical groove 213 inside its vertical section, and each first vertical groove 213 has two first sliders 214 inside. A first roller 215 is rotatably mounted between the two relatively distributed first sliders 214, and the two first rollers 215 are distributed vertically and used to clamp the steel strip. A second spring 216 is also connected between the first slider 214 in the upper position and the top of its corresponding U-shaped frame 217.

[0039] like Figure 5 , 6 As shown, the two first rollers 215 are arranged vertically opposite each other and placed behind the roller assembly. As the roller assembly moves the steel belt forward, the two first rollers 215 can adaptably roll the steel belt to smooth it out and further improve the flatness of the steel belt conveyor.

[0040] Example 2

[0041] In another embodiment of the present invention, each tensioning mechanism includes a second support 111; a plurality of sets of vertical plates 112 disposed on the second support 111, wherein each set of two oppositely distributed vertical plates 112 is provided with a second vertical groove, and a second slider 113 is provided in each second vertical groove; and a second roller 114 rotatably mounted between two second sliders 113, and the plurality of second rollers 114 are staggered vertically; and also includes an electric telescopic rod 115 disposed at the top of each vertical groove, wherein the output end of the electric telescopic rod 115 is fixed to its corresponding second slider 113.

[0042] This implementation example Figure 1 , 2 As shown in Figure 4, the vertical plates 112 fixed on the second support 111 are preferably in three groups. Each group of two vertical plates 112 are rotatably mounted with a second roller 114 through a second slider 113. The three second rollers 114 are staggered vertically and used to smooth and tension the surface of the steel strip. The electric telescopic rod 115 provided between the second slider 113 and its corresponding second vertical groove is used to adjust the longitudinal spacing of the second rollers 114 to adapt to steel strips of different thicknesses and improve the applicability.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "fixation" and other terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part. There are various ways to install detachably, such as by using a plug-in and snap-fit ​​method, or by using a bolt connection, etc.

[0044] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.

Claims

1. A steel strip quenching device, characterized in that, include: Two tensioning mechanisms; A traction pusher roller mechanism is located between two tensioning mechanisms and distributed sequentially along the steel belt conveying direction; Each of the traction push roller mechanisms includes a first support (211) and L-shaped plates (212) disposed on both sides of the first support (211); And the roller assembly and wedge drive assembly respectively set in front of and behind the two L-shaped plates (212), and the wedge drive structure extends to both sides of the roller structure and makes transmission contact with it; It also includes a cam drive assembly set on opposite sides of the two L-shaped plates (212). When the cam drive assembly drives the roller assembly to move back and forth, the wedge drive assembly can drive the roller assembly to perform a back clamp and forward push operation to realize the intermittent pushing process of the steel strip.

2. The steel strip quenching equipment according to claim 1, characterized in that: The roller assembly includes a U-shaped frame (217) fixed at the front end of the horizontal section of the two L-shaped plates (212). The U-shaped frame (217) has two through holes, each containing a transmission column (218). One end of each transmission column (218) extends between the two L-shaped plates (212) and contacts the cam transmission assembly, while the other end is forward and fixed with a transmission frame (219). A plurality of rectangular slots (220) are provided inside the horizontal section of each of the transmission frames (219), and a first rectangular block (221) is provided in each of the rectangular slots (220). A first rotating shaft (222) is rotatably mounted between two oppositely distributed first rectangular blocks (221), and a first pressure roller (223) is fixed in the middle of each first rotating shaft (222). And a plurality of second rectangular blocks (224) fixed to the top of the horizontal section of each of the transmission frames (219), and a second rotating shaft (225) is rotatably mounted between two oppositely distributed second rectangular blocks (224); It also includes a second pressure roller (226) fixed on each of the second rotating shafts (225), and the second pressure rollers (226) correspond one-to-one with the first pressure rollers (223) and are used for clamping and pushing the steel strip.

3. The steel strip quenching equipment according to claim 2, characterized in that: The wedge block transmission assembly includes an extension frame (227) fixed on the upper part of the vertical section of each L-shaped plate (212). Each extension frame (227) extends one end toward the direction of the roller assembly and is fixed with a number of vertical rods (228), and the number of vertical rods (228) corresponds one-to-one with a number of first rotating shafts (222). And wedge bodies (229) fixed at the bottom of each of the vertical rods (228) with increasing height from front to back, wherein two oppositely distributed wedge bodies (229) are in contact with two rollers (230) fixed at the end of their corresponding first rotating shafts (222).

4. The steel strip quenching equipment according to claim 3, characterized in that: The cam drive assembly includes a drive shaft (231) rotatably mounted between the two horizontal sections of the L-shaped plates (212), and two cam bodies (232) are fixed on the drive shaft (231); And a protrusion (233) fixed at one end of each of the transmission columns (218) away from the transmission frame (219), and the protrusion (233) can contact the protruding end where the cam body (232) is located; A first spring (234) is provided on the outer wall of the transmission post (218) between each of the protrusions (233) and the U-shaped frame (217).

5. A steel strip quenching equipment according to claim 2, characterized in that: A spring is connected between the top of each of the first rectangular blocks (221) and the corresponding rectangular slot (220).

6. The steel strip quenching equipment according to claim 4, characterized in that: Each of the drive shafts (231) is also fixed with a drive wheel (236) at one end; And a transmission belt (237) fitted between several transmission wheels (236); It also includes a mounting bracket (235) fixed on one of the L-shaped plates (212), and the mounting bracket (235) contains a motor (238), the output shaft of the motor (238) being fixed to its corresponding transmission wheel (236).

7. The steel strip quenching equipment according to claim 1, characterized in that: Each L-shaped plate (212) is further provided with a first vertical groove (213) inside the vertical section, and two first sliders (214) are provided in each first vertical groove (213). A first roller (215) is rotatably installed between the two relatively distributed first sliders (214), and the two first rollers (215) are distributed vertically and used to clamp the steel strip. A second spring (216) is also connected between the top of the first slider (214) placed in the upper position and the top of its corresponding U-shaped frame (217).

8. The steel strip quenching equipment according to claim 1, characterized in that: Each of the tensioning mechanisms includes a second support (111); A number of sets of vertical plates (112) are provided on the second support (111), wherein each set of two oppositely distributed vertical plates (112) is provided with a second vertical groove, and a second slider (113) is provided in each second vertical groove; And a second roller (114) rotatably mounted between two second sliders (113), and several second rollers (114) are staggered vertically; It also includes an electric telescopic rod (115) disposed at the top of each of the vertical slots, and the output end of the electric telescopic rod (115) is fixed to its corresponding second slider (113).

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