Pin plate type tuyere spring pull rod

Abstract

The utility model discloses a pin plate type tuyere spring pull rod which comprises a mounting seat, a spring pull rod mechanism and a pin plate, the spring pull rod mechanism is obliquely mounted in the middle of the bottom of the mounting seat, the pin plate is nested in the middle of the spring pull rod mechanism, a hand wheel is arranged at the bottom end of the spring pull rod mechanism, and the hand wheel is rotatably connected with the spring pull rod mechanism. The pin plate type tuyere spring pull rod mechanism comprises a mounting seat, two rotating connecting pieces which are oppositely distributed are mounted on the side face of the mounting seat, a motor is mounted at the inner bottom of the mounting seat, and the spring pull rod mechanism comprises a shaft seat A, a guide rail, a screw rod, a spring, a sliding block, a shaft seat B and a hinge seat. The motor is matched with the screw rod for driving, the spring is used for auxiliary driving, the driving stability is effectively improved, the length of the screw rod and the guide rail is long, the displacement distance of the sliding block is long, and therefore the opening and closing angle of the tuyere is larger after installation, and adaptability is higher.

Description

Technical Field

[0001] The utility model relates to the field of spring tie rods, in particular to a pin plate type tuyere spring tie rod. Background Technique

[0002] The blast furnace tuyere is on the blast furnace in the ironmaking plant. The high-temperature hot air blown in by the blast furnace tuyere and the coke at the bottom of the furnace are oxidized and burned to generate CO. CO reduces the iron originally existing in the form of oxides during the high-temperature rise. The blast furnace tuyere usually uses a spring tie rod to adjust the opening angle of the tuyere.

[0003] The tuyere spring tie rod has a long application history, but there are still some problems: 1) The traditional tuyere spring tie rod adopts a manual starting method. With the advancement of the automation process, it gradually cannot meet the requirements; 2) The opening and closing angle of the traditional tuyere spring tie rod is small and the stability is poor. Therefore, in view of the above current situation, there is an urgent need to develop a pin plate type tuyere spring tie rod to overcome the deficiencies in the current actual application and meet the current requirements. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pin plate type tuyere spring tie rod to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pin plate type tuyere spring tie rod includes a mounting seat, a spring tie rod mechanism and a pin plate. The spring tie rod mechanism is obliquely installed at the middle position of the bottom of the mounting seat. The pin plate is nested and installed at the middle position of the spring tie rod mechanism. A handwheel is provided at the bottom end of the spring tie rod mechanism, and the handwheel is rotatably connected to the spring tie rod mechanism.

[0007] As a further scheme of the utility model: Two rotation connectors distributed relatively are installed on the side surface of the mounting seat, and a motor is installed at the inner bottom of the mounting seat.

[0008] As a further scheme of the utility model: The spring tie rod mechanism includes a shaft seat A, a guide rail, a screw rod, a spring, a slider, a shaft seat B and a hinge seat. Two guide rails are distributed relatively on the side surface of the screw rod and are parallel to the screw rod. The shaft seat A is nested and installed at the top ends of the guide rail and the screw rod. The shaft seat B is nested and installed at the bottom ends of the guide rail and the screw rod. The spring is nested and installed at the top end of the screw rod. The slider is nested and arranged at the middle position of the guide rail and the screw rod, and the slider is slidably connected to the guide rail. The hinge seat is obliquely arranged at the bottom of the slider and is hinged to the bottom end of the slider. By using the screw rod as a transmission element and cooperating with the drive of the motor, the automatic control of the tuyere can be realized.

[0009] As a further scheme of the utility model: Three through grooves are opened at the middle position of the pin plate, and limiting shafts are installed inside two of the through grooves.

[0010] As a further solution of the utility model: Several equally spaced limiting holes are provided at the middle position of the guide rail. By matching the provided limiting holes with the pin plate, the movement distance of the slider is restricted.

[0011] As a further solution of the utility model: The slider further includes an internally threaded driving member and a connecting block. Two oppositely distributed through holes are formed at the inner edge of the slider. The internally threaded driving member is embedded and installed at the middle position inside the slider and is fixedly connected to the slider. The connecting block is vertically welded at the middle position of the bottom of the slider. By matching the provided internally threaded driving member with the screw rod, the slider is driven to move along the guide rail.

[0012] As a further solution of the utility model: The limiting shaft is matched with the limiting hole. By the mutual cooperation of the limiting shaft and the limiting hole, the limiting and fixing of the pin plate and the guide rail are realized, and the operation is simple and fast.

[0013] Beneficial effects: This kind of pin plate type air outlet spring pull rod adopts two opening and closing methods, automatic and manual, which can meet the requirements of automation. The motor cooperates with the screw rod for driving, and the spring is used for auxiliary driving, effectively improving the driving stability. The lengths of the screw rod and the guide rail are relatively long, and the slider has a long displacement distance. Therefore, the opening and closing angle of the air outlet after installation will be larger, and the adaptability is stronger. Description of the drawings

[0014] Figure 1 It is a front structural schematic diagram of the utility model.

[0015] Figure 2 It is an overall top view of the utility model.

[0016] Figure 3 It is an overall side view of the utility model.

[0017] Figure 4 It is a structural schematic diagram of the pin plate of the utility model.

[0018] Figure 5 It is a structural schematic diagram of the slider of the utility model.

[0019] In the figure: 1. Mounting seat; 11. Rotary connecting piece; 12. Motor; 2. Spring pull rod mechanism; 21. Axle seat A; 22. Guide rail; 221. Limiting hole; 23. Screw rod; 24. Spring; 25. Slider; 251. Through hole; 252. Internally threaded driving member; 253. Connecting block; 26. Axle seat B; 27. Hinge seat; 3. Pin plate; 31. Through groove; 32. Limiting shaft; 4. Handwheel; Detailed implementation manners

[0020] Embodiment

[0021] Please refer to Figures 1 to 5, in the embodiment of the present utility model, a pin plate type air outlet spring pull rod includes a mounting base 1, a spring pull rod mechanism 2 and a pin plate 3. The spring pull rod mechanism 2 is obliquely installed at the middle position of the bottom of the mounting base 1, and the pin plate 3 is nested and installed at the middle position of the spring pull rod mechanism 2. A hand wheel 4 is provided at the bottom end of the spring pull rod mechanism 2, and the hand wheel 4 is rotatably connected to the spring pull rod mechanism 2.

[0022] As a further scheme of the present utility model: Two rotation connectors 11 distributed relatively are installed on the side surface of the mounting base 1, and a motor 12 is installed on the inner bottom of the mounting base 1.

[0023] As a further scheme of the present utility model: The spring pull rod mechanism 2 includes a shaft seat A21, guide rails 22, a screw rod 23, a spring 24, a slider 25, a shaft seat B26 and a hinge seat 27. Two guide rails 22 are distributed relatively on the side surface of the screw rod 23 and are parallel to the screw rod 23. The shaft seat A21 is nested and installed at the top ends of the guide rails 22 and the screw rod 23, the shaft seat B26 is nested and installed at the bottom ends of the guide rails 22 and the screw rod 23, the spring 24 is nested and installed at the top end of the screw rod 23, the slider 25 is nested and arranged at the middle position of the guide rails 22 and the screw rod 23, and the slider 25 is slidably connected to the guide rails 22. The hinge seat 27 is obliquely arranged at the bottom of the slider 25 and is hinged to the bottom end of the slider 25. By using the screw rod 23 as a transmission element and cooperating with the drive of the motor 12, automatic control of the air outlet can be realized.

[0024] As a further scheme of the present utility model: Three through grooves 31 are opened at the middle position of the pin plate 3, and two limiting shafts 32 are installed inside two of the through grooves 31.

[0025] As a further scheme of the present utility model: A number of equally spaced limiting holes 221 are provided at the middle position of the guide rail 22. By matching the provided limiting holes 221 with the pin plate 3, the movement distance of the slider 25 is restricted.

[0026] As a further scheme of the present utility model: The slider 25 further includes an internally threaded driving member 252 and a connecting block 253. Two relatively distributed through holes 251 are opened at the inner edge of the slider 25. The internally threaded driving member 252 is embedded and installed at the middle position inside the slider 25 and is fixedly connected to the slider 25. The connecting block 253 is vertically welded at the middle position of the bottom of the slider 25. By matching the provided internally threaded driving member 252 with the screw rod 23, the slider 25 is driven to move along the guide rail 22.

[0027] As a further scheme of the present utility model: The limiting shaft 32 is matched with the limiting hole 221. By the mutual cooperation of the limiting shaft 32 and the limiting hole 221, the limiting and fixing of the pin plate 3 and the guide rail 22 are realized, and the operation is simple, fast and convenient.

[0028] The working principle of the present utility model is as follows: When the pin plate type air outlet spring pull rod is in use, the mounting seat 1 is installed at the blast furnace air outlet through the rotary connector 11 on the side, and then the hinge seat 27 is connected to the air outlet door. When it is necessary to open the air outlet door, the motor 12 is started, and the screw rod 23 is driven to rotate by the motor 12. The screw rod 23 and the internal thread driving member 252 cooperate with each other to drive the slider 25 to move axially along the guide rail 22. Finally, the air outlet door is driven to open through the hinge seat 27 at the bottom end. The limiting shaft 32 of the pin plate 3 is inserted into the limiting hole 221 of the guide rail 22 in advance. When the slider 25 moves to the pin plate 3, it will be blocked. The position of the pin plate 3 is the maximum opening angle of the air outlet door. When necessary, the screw rod 23 can also be driven to rotate by turning the hand wheel 4, so as to manually adjust the opening angle of the air outlet.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pin-plate type tuyere spring pull rod, characterized in that: The invention comprises a mounting seat (1), a spring pull rod mechanism (2) and a pin plate (3); the spring pull rod mechanism (2) is installed at an angle at the middle position of the bottom of the mounting seat (1); the pin plate (3) is installed in a nested manner at the middle position of the spring pull rod mechanism (2); a hand wheel (4) is provided at the bottom end of the spring pull rod mechanism (2); and the hand wheel (4) is rotatably connected to the spring pull rod mechanism (2).

2. The pin-plate type tuyere spring pull rod according to claim 1, characterized in that: Two rotating connecting members (11) are installed on the side of the mounting seat (1) and are arranged in a relative manner. A motor (12) is installed on the inner bottom of the mounting seat (1).

3. The pin-plate type tuyere spring pull rod according to claim 1, characterized in that: The spring pull rod mechanism (2) comprises an axle seat A (21), a guide rail (22), a screw rod (23), a spring (24), a slider (25), an axle seat B (26) and a hinge seat (27). The two guide rails (22) are relatively distributed on the sides of the screw rod (23) and are parallel to the screw rod (23). The axle seat A (21) is nested at the top of the guide rail (22) and the screw rod (23). The axle seat B (26) is nested at the bottom of the guide rail (22) and the screw rod (23). The spring (24) is nested at the top of the screw rod (23). The slider (25) is nested at the middle position between the guide rail (22) and the screw rod (23), and the slider (25) is slidably connected to the guide rail (22). The hinge seat (27) is obliquely arranged at the bottom of the slider (25) and is hinged to the bottom of the slider (25).

4. The pin-plate type tuyere spring pull rod according to claim 1, characterized in that: Three through slots (31) are provided in the middle of the pin plate (3), and limiting shafts (32) are installed inside two of the through slots (31).

5. The pin-plate type tuyere spring pull rod according to claim 3, characterized in that: A plurality of equally spaced limiting holes (221) are provided in the middle of the guide rail (22).

6. The pin-plate type tuyere spring pull rod according to claim 3, characterized in that: The slider (25) further comprises an internal thread driving member (252) and a connecting block (253); the inner edge of the slider (25) is provided with two through holes (251) arranged opposite to each other; the internal thread driving member (252) is embedded in the middle position of the inner part of the slider (25) and is fixedly connected to the slider (25); and the connecting block (253) is vertically welded to the middle position of the bottom of the slider (25).

7. The pin-plate type tuyere spring pull rod according to claim 4, characterized in that: The limiting shaft (32) matches the limiting hole (221).

Images