A hydraulic mud gun vertical angle adjustment and buffer device

Abstract

This utility model provides a vertical angle adjustment and buffering device for a hydraulic mud gun, relating to the technical field of hydraulic mud gun auxiliary equipment. It includes a bearing base, an adjusting screw rod, and a buffering device. The hydraulic mud gun pin is fixed to the bearing base, and the lower end of the adjusting screw rod is screwed into the upper bearing of the bearing base. The buffering device includes a main structure and a disc spring. The disc spring is installed in the main structure and sleeved around the adjusting screw rod. A hydraulic mud gun suspension mechanism is sleeved on the adjusting screw rod and fixed between the upper and lower buffering devices. A cap-shaped nut is provided on the upper side of the upper buffering device, and a sleeve nut is provided on the lower side of the lower buffering device. Both the sleeve nut and the cap-shaped nut are connected to the adjusting screw rod. This utility model, by adjusting the vertical displacement of the sleeve nut and the cap-shaped nut, forces the hydraulic mud gun pin to rotate while simultaneously moving up and down along the adjusting screw rod, thereby allowing for real-time adjustment of the vertical angle of the hydraulic mud gun. The disc spring absorbs the impact and vibration caused by changes in external load, ensuring smooth movement of the hydraulic mud gun.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic mud gun auxiliary equipment, and in particular to a hydraulic mud gun vertical angle adjustment and buffer device. Background Technology

[0002] Hydraulic mud guns are essential furnace-front equipment in the blast furnace smelting industry. When installed, the hydraulic mud gun is tilted at a 10° angle to the horizontal plane by cooperating with the inclined base. The action is completed by the hydraulic system driving two oil cylinders. The hydraulic cylinder of the rotating mechanism drives the four-bar linkage to control the rotation and pressing of the gun.

[0003] Previously, hydraulic mud guns were fixed using rigid connections after the tilt angle was adjusted during installation. Over time, wear and tear occurs in the joints of the transmission mechanism, and the rotational inertia of the hydraulic mud gun generates rotational inertia. The nearly 20-ton rotating part, driven by the hydraulic cylinder, turns towards the taphole at a certain speed, stretching the machine body. After impacting the taphole, the reaction force compresses the mud gun body. Furthermore, during the reciprocating rotation of the hydraulic mud gun, unpredictable changes in external load can cause shaking, weld cracking, deformation, and deviation from the trajectory, resulting in inaccurate positioning of the hydraulic mud gun, or even failure to plug the taphole. This can lead to blast furnace shutdowns, severely restricting normal blast furnace production and even causing major safety accidents. The working quality and service life of the hydraulic mud gun directly affect the enterprise's safe production and economic interests. Utility Model Content

[0004] To address the aforementioned technical problems, a hydraulic mud gun vertical angle adjustment and buffering device is provided. This invention primarily adjusts the vertical displacement of the sleeve nut and cap nut, forcing the hydraulic mud gun pin to rotate while simultaneously moving up and down along the adjusting screw rod, thus allowing for real-time adjustment of the hydraulic mud gun's vertical angle. Furthermore, during the rotation of the hydraulic mud gun, the disc spring in the buffering device absorbs the impact and vibration caused by changes in external load, ensuring smooth movement of the hydraulic mud gun. The technical means employed in this invention are as follows: A hydraulic mud gun vertical angle adjustment and buffering device includes: a bearing seat, an adjusting screw rod, and a buffering device. The bearing seat includes a lower bearing seat and an upper bearing seat that are fixedly connected. A transverse mounting hole is provided between the lower bearing seat and the upper bearing seat. The hydraulic mud gun pin is transversely fixed in the mounting hole and can rotate freely in the mounting hole. The lower end of the adjusting screw rod is screwed and fixed in the upper bearing seat. The buffer device is provided in two sets, arranged vertically. The buffer device includes a main structure and a disc spring. The main structure has an internal receiving chamber. The disc spring is installed in the receiving chamber and is sleeved on the outside of the adjusting screw rod. The hydraulic mud gun hanging mechanism is sleeved on the outside of the adjusting screw rod and is vertically fixed between the upper and lower buffer devices. The upper side of the upper buffer device is provided with a cap nut, and the lower side of the lower buffer device is provided with a sleeve nut. Both the sleeve nut and the cap nut are threaded onto the adjusting screw rod.

[0005] Furthermore, the lower tile seat has a first mounting hole, and the upper tile seat has a second mounting hole, which are engaged to form the mounting hole.

[0006] Furthermore, the lower and upper tile seats are fixedly connected by multiple sets of fastening bolts.

[0007] Furthermore, one side of the hydraulic mud gun pin is limited by a shoulder, and the other side is fixed by a washer and a cotter pin; wherein, the shoulder of the hydraulic mud gun pin fits against one side of the bearing seat, the washer fits against the other side of the bearing seat, and the cotter pin is engaged with the hydraulic mud gun pin to limit the washer.

[0008] Furthermore, the main structure includes a disc spring seat and a support plate, the support plate being fixedly connected to one end of the disc spring seat, and the disc spring seat and the support plate having an accommodating chamber inside.

[0009] Furthermore, the hydraulic mud gun pin is fixedly connected to the upper bearing seat by an elastic cylindrical pin.

[0010] Compared with the prior art, the present invention has the following advantages: 1. The hydraulic mud gun vertical angle adjustment and buffer device provided by this utility model can adjust the vertical angle of the hydraulic mud gun at any time by adjusting the vertical displacement of the sleeve nut and the cap nut, which forces the hydraulic mud gun pin to rotate while moving up and down along the adjusting screw rod.

[0011] 2. The hydraulic mud gun vertical angle adjustment and buffer device provided by this utility model can absorb the impact and vibration caused by changes in external load during the rotation of the hydraulic mud gun, ensuring the smooth movement of the hydraulic mud gun.

[0012] 3. The hydraulic mud gun vertical angle adjustment and buffer device provided by this utility model adopts an adjustable spiral rod structure, which determines the running trajectory of the hydraulic mud gun, realizes the accurate blocking action, and makes the hydraulic mud gun finally aligned with the iron hole position.

[0013] 4. The hydraulic mud gun vertical angle adjustment and buffer device provided by this utility model ensures that the muzzle and the iron mouth are in close contact, preventing the mud from overflowing during subsequent mud-making operations, and ensuring that the mud is completely injected into the iron mouth.

[0014] 5. The hydraulic mud gun vertical angle adjustment and buffer device provided by this utility model avoids the problems of excessive speed fluctuations, excessive shaking of the gun body, and excessive impact force at the moment of blocking during the gun's advance and retreat processes, which cause damage to the iron taphole and hydraulic mud gun parts and seriously affect normal production.

[0015] 6. The hydraulic mud gun vertical angle adjustment and buffer device provided by this utility model has a simple structure, is easy to manufacture, is safe and reliable, and improves the efficiency of hydraulic mud gun use.

[0016] Based on the above reasons, this utility model can be widely promoted in fields such as hydraulic mud gun angle adjustment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the device of this utility model.

[0019] Figure 2 This is a cross-sectional view of the device of this utility model.

[0020] Figure 3 for Figure 2 Sectional view at point AA.

[0021] Figure 4 This is a schematic diagram of the buffer device of this utility model.

[0022] Figure 5 This is a schematic diagram of the adjusting screw rod of this utility model.

[0023] In the diagram: 1. Bearing seat; 11. Lower bearing seat; 12. Upper bearing seat; 13. Fastening bolt; 2. Adjusting screw rod; 21. Elastic cylindrical pin; 3. Buffer device; 31. Disc spring; 32. Disc spring seat; 33. Support plate; 4. Hydraulic mud gun pin; 41. Washer; 42. Cotter pin; 5. Hydraulic mud gun hanging mechanism; 6. Sleeve nut; 7. Cap nut. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figure 1 As shown, this utility model provides a hydraulic mud gun vertical angle adjustment and buffer device for adjusting the vertical angle of the blast furnace hydraulic mud gun and absorbing impact vibration. The device consists of three parts: a bearing base 1, an adjusting screw rod 2, and a buffer device 3. The lower end of the adjusting screw rod 2 is connected to the bearing base 1, and the buffer device 3 is connected to the adjusting screw rod 2.

[0026] like Figure 2 As shown, the bearing seat 1 includes a lower bearing seat 11 and an upper bearing seat 12. The lower bearing seat 11 has a first mounting hole, and the upper bearing seat 12 has a second mounting hole. The first mounting hole and the second mounting hole are engaged to form a mounting hole. The hydraulic mud gun pin 4 passes through the mounting hole laterally. The lower bearing seat 11 and the upper bearing seat 12 are fixedly connected by multiple sets of fastening bolts 13. The hydraulic mud gun pin 4 is radially fixed by the fastening bolts 13, and the hydraulic mud gun pin 4 can rotate freely in the mounting hole of the bearing seat 1.

[0027] like Figure 3 As shown, the hydraulic mud gun pin 4 is provided with a washer 41 and a cotter pin 42 to fix the hydraulic mud gun pin 4 axially. The hydraulic mud gun pin 4 passes through the mounting hole, and one side of the hydraulic mud gun pin 4 is limited by a shoulder. The other side of the hydraulic mud gun pin 4, which passes through the mounting hole, is fixed by the washer 41 and the cotter pin 42. The shoulder of the hydraulic mud gun pin 4 fits against one side of the bearing seat 1, the washer 41 fits against the other side of the bearing seat 1, and the cotter pin 42 is engaged with the hydraulic mud gun pin 4 to limit the washer 41.

[0028] like Figure 2 As shown, the lower end of the adjusting screw rod 2 is screwed into the upper bearing seat 12, and after being drilled with the upper bearing seat 12, it is fixed with the elastic cylindrical pin 21.

[0029] like Figure 4 As shown, the buffer device 3 consists of two sets of disc springs 31, one above the other. Each set of disc springs 31 passes through the adjusting screw rod 2 and is installed inside the disc spring seat 32 and the support plate 33. The support plate 33 is fixedly connected to one end of the disc spring seat 32. The disc spring seat 32 and the support plate 33 have accommodating chambers inside, and the disc springs 31 are installed in the accommodating chambers and are sleeved on the outside of the adjusting screw rod 2. Figure 2 and Figure 4As shown, the hydraulic mud cannon suspension mechanism 5 is sleeved outside the adjusting screw rod 2 and vertically fixed (clamped) between the upper and lower sets of disc springs 31. By adjusting the vertical displacement of the sleeve nut 6 and the cap nut 7, the hydraulic mud cannon pin 4 is forced to rotate while moving up and down along the adjusting screw rod 2, thereby changing the vertical angle of the hydraulic mud cannon. During the rotation of the hydraulic mud cannon, the disc springs 31 in the buffer device 2 can absorb the impact and vibration caused by changes in the external load, ensuring the smooth movement of the hydraulic mud cannon, avoiding deformation and cracking of the steel structure of the hydraulic mud cannon body, and preventing accidents caused by the inability to plug the taphole. The advantages of this utility model are simple structure, convenient manufacturing, safety and reliability, and improved efficiency of hydraulic mud cannon use.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hydraulic mortar cannon vertical angle adjustment and cushioning device, characterized in that, include: The device comprises a bearing seat (1), an adjusting screw rod (2), and a buffer device (3). The bearing seat (1) includes a lower bearing seat (11) and an upper bearing seat (12) that are fixedly connected. A transverse mounting hole is provided between the lower bearing seat (11) and the upper bearing seat (12). A hydraulic mud gun pin (4) is transversely fixed in the mounting hole and can rotate freely in the mounting hole. The lower end of the adjusting screw rod (2) is screwed and fixed in the upper bearing seat (12). The buffer device (3) is provided in two sets, arranged vertically; the buffer device (3) includes a main structure and a disc spring (31). The main structure has an internal accommodating chamber. The disc spring (31) is installed in the accommodating chamber and is sleeved on the outside of the adjusting screw rod (2); the hydraulic mud gun hanging mechanism (5) is sleeved on the outside of the adjusting screw rod (2) and is vertically fixed in the middle of the upper and lower buffer devices (3); the upper side of the upper buffer device (3) is provided with a cap nut (7), and the lower side of the lower buffer device (3) is provided with a sleeve nut (6). The sleeve nut (6) and the cap nut (7) are both threadedly connected to the adjusting screw rod (2).

2. The hydraulic mortar cannon vertical angle adjustment and cushioning device of claim 1, wherein, The lower tile seat (11) has a first mounting hole, and the upper tile seat (12) has a second mounting hole. The first mounting hole and the second mounting hole are engaged to form the mounting hole.

3. The hydraulic mud gun vertical angle adjustment and cushioning device of claim 1, wherein, The lower tile seat (11) and the upper tile seat (12) are fixedly connected by multiple sets of fastening bolts (13).

4. The hydraulic mud gun vertical angle adjustment and cushioning device of claim 1, wherein, One side of the hydraulic mud gun pin (4) is limited by a shoulder, and the other side is fixed by a washer (41) and a cotter pin (42). The shoulder of the hydraulic mud gun pin (4) is in contact with one side of the bearing seat (1), the washer (41) is in contact with the other side of the bearing seat (1), and the cotter pin (42) is connected to the hydraulic mud gun pin (4) to limit the washer (41).

5. The hydraulic mud gun vertical angle adjustment and cushioning device of claim 1, wherein, The main structure includes a disc spring seat (32) and a tray (33), the tray (33) being fixedly connected to one end of the disc spring seat (32), and the disc spring seat (32) and the tray (33) having accommodating chambers inside.

6. The hydraulic mud gun vertical angle adjustment and cushioning device of claim 1, wherein, The hydraulic mud gun pin (4) is fixedly connected to the upper bearing seat (12) by an elastic cylindrical pin (21).

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