Steel pushing device of strip steel heating furnace
By combining hydraulic cylinders with buffer components and worm gear structures, the vibration problem of traditional strip steel pushing devices in heating furnaces has been solved, achieving high-precision and high-efficiency pushing operations, improving the heating quality of strip steel and the smoothness of the production line.
Patent Information
- Application Number
- CN202520423388.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Traditional strip steel heating furnace pusher devices generate significant vibrations during operation, leading to deviations in strip steel billet displacement, which affects heating quality and efficiency, making it difficult to meet the high precision and high efficiency requirements of modern production.
A hydraulic cylinder drives a push rod, which, combined with a buffer assembly (support plate, limit plate, slide bar, buffer spring and small hydraulic damper), buffers vibration. The oil flow rate is precisely controlled through a worm gear structure to optimize the working state of the hydraulic cylinder.
It effectively reduces vibration, ensures the stability and precision of the steel pushing process, improves equipment life and production efficiency, and avoids deviation in the heating position of the strip steel.
Smart Images
Figure CN223856158U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to steel pushing device technical field especially relates to a steel pushing device of strip steel heating furnace. BACKGROUND
[0002] In the strip steel production process, the strip steel heating furnace steel pushing device plays a vital role. With the continuous development of the steel industry, the production efficiency and quality of the strip steel are increasingly improved. The strip steel heating furnace steel pushing device needs to accurately and efficiently push the strip steel billet to the appropriate position in the heating furnace, and its performance directly affects the subsequent heating quality of the strip steel and the smoothness of the entire production line, so the optimization and innovation of the device have always been the focus of the industry.
[0003] In the traditional strip steel heating furnace steel pushing technology, a relatively simple mechanical structure is usually used to realize the steel pushing action. Commonly, a common motor drives a lead screw nut mechanism to drive a push plate to push the strip steel billet. Its technical principle is based on the rotation of the motor to convert into the linear motion of the lead screw, and then push the push plate. In terms of equipment support, the driving device is usually simply installed on a fixed support, and there is no specific consideration for factors such as vibration during equipment operation.
[0004] However, this traditional steel pushing device produces a large vibration during operation due to the instability of the motor drive and the lack of effective shock absorption measures in the device structure itself. When the hydraulic cylinder is filled with oil and the steel pushing operation is performed, a large vibration is generated. This vibration not only easily affects the service life of the equipment, but also causes the strip steel billet to deviate during the steel pushing operation, which makes the heating position of the strip steel in the heating furnace inaccurate, thereby affecting the heating quality of the strip steel, and ultimately reducing the precision and efficiency of the steel pushing, which is difficult to meet the demand for high precision and high efficiency in modern strip steel production. SUMMARY
[0005] In order to make up for the above shortcomings, the utility model provides a strip steel heating furnace steel pushing device, which aims to improve the problem that the traditional steel pushing device produces a large vibration during operation, and the frequent vibration also causes the strip steel billet to deviate during the steel pushing operation, which makes the heating position of the strip steel in the heating furnace inaccurate, thereby affecting the heating quality of the strip steel.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: a strip steel heating furnace steel pushing device, comprising a material returning bin, a material returning trolley is slidably connected inside the material returning bin, a fixed frame is fixedly connected to one side of the outer wall of the material returning bin, a hydraulic cylinder is arranged above the fixed frame, a material pushing rod is fixedly connected to the output end of the hydraulic cylinder, one end of the material pushing rod is fixedly connected to one side of the outer wall of the material returning trolley, and a buffer assembly is arranged on the lower surface of the hydraulic cylinder.
[0007] The buffer assembly comprises a support plate, the upper surface of the support plate is fixedly connected to the lower surface of the hydraulic cylinder, a sliding rod is slidably connected in the support plate, a limiting plate is fixedly connected to the top of the sliding rod, a buffer spring is sleeved on the outer wall of the sliding rod, a fixed plate is slidably connected to the outer wall of the sliding rod, a small hydraulic damper is slidably connected to the bottom of the sliding rod, and a support assembly is arranged on the lower surface of the fixed plate.
[0008] Further, the support assembly comprises a bottom plate, the upper surface of the bottom plate is fixedly connected to the lower surface of the fixed plate, and a support is fixedly connected to the lower surface of the hydraulic cylinder.
[0009] Further, a joint is fixedly connected to one side of the outer wall of the hydraulic cylinder, a baffle is rotatably connected in the joint, a sealing ring is fixedly connected to the outer wall of the baffle, a sealing bearing is fixedly connected to the bottom of the baffle, and a driving assembly is arranged in the joint.
[0010] Further, the driving assembly comprises a worm, the outer wall of the worm is rotatably connected in the joint, handles are fixedly connected to the two ends of the worm, a worm wheel is rotatably connected in the joint, the worm wheel is engaged with the worm, and the worm wheel is fixedly connected to the top of the baffle.
[0011] Further, one end of the buffer spring is fixedly connected to the lower surface of the limiting plate, and the other end of the buffer spring is fixedly connected to the upper surface of the fixed plate.
[0012] Further, the lower surface of the bottom plate is fixedly connected to the upper surface of the fixed frame, and the lower surface of the support is fixedly connected to the upper surface of the fixed frame.
[0013] Further, the inner wall of the support plate is slidably connected to the outer wall of the fixed plate, and the fixed plate is used for limiting the support plate.
[0014] Further, the outer ring of the sealing bearing is fixedly connected to the inside of the joint, and the sealing bearing is used for assisting the rotation of the baffle.
[0015] The utility model has the advantages of the following beneficial effects:
[0016] 1、In the utility model, the hydraulic cylinder drives the pushing rod to push the material withdrawing trolley, the buffer assembly cooperates to play a role, the support plate, the limiting plate, the sliding rod, the buffer spring and the small hydraulic damper effectively buffer the vibration generated by the hydraulic cylinder oil filling, when vibrating, the support plate slides on the outer wall of the fixed plate, the buffer spring expands and contracts, cooperates with the small hydraulic damper, and the support stabilizes the hydraulic cylinder, which prolongs the service life of the equipment, ensures the stable pushing of the steel, improves the precision and efficiency, and avoids the displacement deviation of the strip steel.
[0017] 2、The utility model discloses, through drive handle drive worm rotation, with the meshing of worm and worm wheel, make worm wheel drive baffle rotation, cooperate sealing washer and sealing bearing, accurate regulation joint passageway opening, flexible control oil flow rate can be according to different push steel condition, such as speed, strip material quality and weight, fine adjustment hydraulic cylinder operating state, optimization device performance, promote strip heating furnace system operating efficiency and adaptability. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 A kind of three-dimensional structure schematic diagram of strip heating furnace pusher of the utility model is proposed;
[0019] Figure 2 A kind of hydraulic cylinder partial structure schematic diagram of strip heating furnace pusher of the utility model is proposed;
[0020] Figure 3 A kind of bottom plate partial structure schematic diagram of strip heating furnace pusher of the utility model is proposed;
[0021] Figure 4 A kind of worm wheel partial structure schematic diagram of strip heating furnace pusher of the utility model is proposed.
[0022] Legend:
[0023] 1, material return bin;2, material return trolley;3, fixed frame;4, push material rod;5, hydraulic cylinder;6, joint;7, support;8, handle;9, limit plate;10, support plate;11, buffer spring;12, fixed plate;13, bottom plate;14, worm wheel;15, worm;16, baffle;17, slide rod;18, small hydraulic damper;19, sealing washer;20, sealing bearing. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0025] Reference Figure 1 - Figure 3The present invention provides an embodiment of a strip steel heating furnace pushing device, comprising a strip unloading bin 1, a strip unloading trolley 2 slidably connected inside the strip unloading bin 1, a fixed frame 3 fixedly connected to one side of the outer wall of the strip unloading bin 1, a hydraulic cylinder 5 provided above the fixed frame 3 to provide power to drive the push rod 4 to move, the output end of the hydraulic cylinder 5 is fixedly connected to the push rod 4, connecting the hydraulic cylinder 5 and the strip unloading trolley 2, transmitting the thrust of the hydraulic cylinder 5 to push the strip unloading trolley 2 to slide in the strip unloading bin 1, one end of the push rod 4 is fixedly connected to one side of the outer wall of the strip unloading trolley 2, and a buffer assembly is provided on the lower surface of the hydraulic cylinder 5;
[0026] The buffer assembly includes a support plate 10, the upper surface of which is fixedly connected to the lower surface of the hydraulic cylinder 5. A slide rod 17 is slidably connected inside the support plate 10. A limit plate 9 is fixedly connected to the top of the slide rod 17. A buffer spring 11 is sleeved on the outer wall of the slide rod 17. A fixing plate 12 is slidably connected to the outer wall of the slide rod 17. A small hydraulic damper 18 is slidably connected to the bottom of the slide rod 17. A support assembly is provided on the lower surface of the fixing plate 12. The support assembly includes a base plate 13, the upper surface of which is fixedly connected to the lower surface of the fixing plate 12. A bracket 7 is fixedly connected to the lower surface of the hydraulic cylinder 5.
[0027] Specifically, the hydraulic cylinder 5 drives the push rod 4 to push the unloading trolley 2 to slide in the unloading bin 1 to complete the unloading. During this process, due to the flow of oil and pressure changes, the hydraulic cylinder 5 vibrates. The vibration is transmitted to the support plate 10, causing it to slide along the outer wall of the fixed plate 12, which in turn drives the limit plate 9 and the slide rod 17 to move. The buffer spring 11 extends and retracts between the limit plate 9 and the fixed plate 12 to absorb some of the external force. The small hydraulic damper 18 at the bottom of the slide rod 17 dissipates the vibration energy. The specific model of the small hydraulic damper 18 is RJ2010. The bracket 7 supports from below and works in conjunction with the vibration of the hydraulic cylinder 5 to ensure the stability of the steel pushing.
[0028] Reference Figure 1 - Figure 4The outer wall of the hydraulic cylinder 5 is fixedly connected with a joint 6, the joint 6 is rotatably connected with a baffle 16, the opening size of the channel in the joint 6 is changed when the baffle 16 rotates, the outer wall of the baffle 16 is fixedly connected with a sealing ring 19, the bottom of the baffle 16 is fixedly connected with a sealing bearing 20, the sealing bearing 20 assists the rotation of the baffle 16 and plays a sealing role at the same time, preventing oil leakage, a driving assembly is arranged in the joint 6, the driving assembly comprises a worm 15, the outer wall of the worm 15 is rotatably connected in the joint 6, handles 8 are fixedly connected at both ends of the worm 15, the driving handles 8 are manually rotated by the operator, the worm 15 is driven to rotate, a worm wheel 14 is rotatably connected in the joint 6, the worm wheel 14 is engaged with the worm 15, the worm wheel 14 is fixedly connected to the top of the baffle 16, one end of the buffer spring 11 is fixedly connected to the lower surface of the limiting plate 9, the other end of the buffer spring 11 is fixedly connected to the upper surface of the fixed plate 12, the lower surface of the bottom plate 13 is fixedly connected to the upper surface of the fixed frame 3, the lower surface of the support 7 is fixedly connected to the upper surface of the fixed frame 3, the inner wall of the support plate 10 is slidably connected to the outer wall of the fixed plate 12, the fixed plate 12 is used for limiting the support plate 10, the outer ring of the sealing bearing 20 is fixedly connected to the inside of the joint 6, and the sealing bearing 20 is used to assist the rotation of the baffle 16.
[0029] Specifically, the operator rotates the driving handle 8, drives the worm 15 to rotate in the joint 6, the worm 15 is engaged with the worm wheel 14, the worm wheel 14 is rotated, and in turn drives the baffle 16 to rotate, the sealing bearing 20 at the bottom of the baffle 16 assists the rotation and sealing, when the baffle 16 rotates, the sealing ring 19 on the outer wall of the baffle 16 is attached to the channel of the joint 6, by changing the rotation angle of the baffle 16, the opening size of the channel is accurately adjusted, the cross-sectional area of the oil passing through is changed, the speed of the oil passing through the joint 6 is flexibly controlled, and the requirements of different push steel working conditions on the working speed and pressure of the hydraulic cylinder 5 are met.
[0030] Working principle: when the strip heating furnace pusher is needed, first start the hydraulic cylinder 5 to drive the push rod 4 to move, so as to push the material returning trolley 2 to slide in the inside of the material returning bin 1, realize material returning, in this process, due to the filling of the oil in the hydraulic cylinder 5, a certain vibration will occur, so as to drive the support plate 10 to slide on the outer wall of the fixed plate 12, at this time, the limiting plate 9 and the slide rod 17 are driven to move by the movement of the support plate 10, and in turn the buffer spring 11 is stretched and contracted between the limiting plate 9 and the fixed plate 12, buffers the external force, at the same time, the small hydraulic damper 18 can buffer the vibration, finally, the support 7 realizes the buffering of the vibration of the hydraulic cylinder 5.
[0031] In addition, the driving handle 8 drives the worm 15 to rotate in the joint 6, and the worm wheel 14 drives the baffle 16 to rotate with the rotation of the worm 15, and the sealing ring 19 realizes the adjustment of the opening of the channel in the joint 6, and in turn the speed of the oil passing through can be controlled.
[0032] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A pusher device for a strip steel heating furnace comprising a withdrawal bin (1), characterized in that: The inside of the material return bin (1) is slidably connected with a material return trolley (2), one side of the outer wall of the material return bin (1) is fixedly connected with a fixing frame (3), the upper portion of the fixing frame (3) is provided with a hydraulic cylinder (5), the output end of the hydraulic cylinder (5) is fixedly connected with a pushing rod (4), one end of the pushing rod (4) is fixedly connected to one side of the outer wall of the material return trolley (2), and the lower surface of the hydraulic cylinder (5) is provided with a buffer assembly. The buffer assembly comprises a supporting plate (10), the upper surface of the supporting plate (10) is fixedly connected to the lower surface of the hydraulic cylinder (5), the inside of the supporting plate (10) is slidably connected with a sliding rod (17), the top of the sliding rod (17) is fixedly connected with a limiting plate (9), the outer wall of the sliding rod (17) is sleeved with a buffer spring (11), the outer wall of the sliding rod (17) is slidably connected with a fixed plate (12), the bottom of the sliding rod (17) is slidably connected with a small hydraulic damper (18), and the lower surface of the fixed plate (12) is provided with a supporting assembly.
2. A pusher device for a strip steel heating furnace according to claim 1, characterized in that: The supporting assembly comprises a bottom plate (13), the upper surface of the bottom plate (13) is fixedly connected to the lower surface of the fixed plate (12), and the lower surface of the hydraulic cylinder (5) is fixedly connected with a support (7).
3. A pusher device for a strip steel furnace as claimed in claim 1, characterized in that: One side of the outer wall of the hydraulic cylinder (5) is fixedly connected with a joint (6), the inside of the joint (6) is rotatably connected with a baffle (16), the outer wall of the baffle (16) is fixedly connected with a sealing ring (19), the bottom of the baffle (16) is fixedly connected with a sealing bearing (20), and the inside of the joint (6) is provided with a driving assembly.
4. A pusher device for a strip steel furnace as claimed in claim 3, characterized in that: The driving assembly comprises a worm (15), the outer wall of the worm (15) is rotatably connected in the inside of the joint (6), both ends of the worm (15) are fixedly connected with handles (8), the inside of the joint (6) is rotatably connected with a worm wheel (14), the worm wheel (14) is engaged with the worm (15), and the inside of the worm wheel (14) is fixedly connected to the top of the baffle (16).
5. A pusher device for a strip steel furnace as claimed in claim 1, characterized in that: One end of the buffer spring (11) is fixedly connected to the lower surface of the limiting plate (9), and the other end of the buffer spring (11) is fixedly connected to the upper surface of the fixed plate (12).
6. A pusher device for a strip steel furnace as claimed in claim 2, characterized in that: The lower surface of the bottom plate (13) is fixedly connected to the upper surface of the fixing frame (3), and the lower surface of the support (7) is fixedly connected to the upper surface of the fixing frame (3).
7. A pusher device for a strip steel furnace as claimed in claim 1, characterized in that: The inner wall of the supporting plate (10) is slidably connected to the outer wall of the fixed plate (12), and the fixed plate (12) is used for limiting the supporting plate (10).
8. A pusher device for a strip steel furnace as claimed in claim 3, characterized in that: The outer ring of the sealing bearing (20) is fixedly connected in the inside of the joint (6), and the sealing bearing (20) is used for assisting the rotation of the baffle (16).