A demoulding tool for air supply device

Abstract

This invention discloses a demolding fixture for an air supply device, comprising: a variable frequency speed control motor (1), a cycloidal pinwheel reducer (2), an elastic sleeve pin coupling (3), a transmission shaft (4), a bidirectional thrust ball bearing (5), a bearing housing (6), a deep groove ball bearing (7), a connecting seal (8), a steel pipe nut (9), a sliding support plate (10), a screw (11), a support base (12), a reducer base (13), a bearing housing bracket (14), a steel pipe bracket (15), a positioning base plate (16), and multiple adjusting screws (17). The demolding fixture for the air supply device disclosed in this invention can automatically demold the mold without manual demolding, reducing the labor intensity of workers, and the demolded mold can be reused.

Description

Technical Field

[0001] The invention belongs to the technical field of blast furnace metallurgy, and in particular relates to a demoulding tooling for an air supply device. Background Art

[0002] The blast furnace air supply device is a device installed between the hot blast surrounding pipe and the tuyere small sleeve. Its function is to send the hot blast generated by the hot blast stove into the blast furnace through the various tuyere of the blast furnace. At the same time, it also needs to spray fuel into the blast furnace and observe the smelting situation in the blast furnace through some special settings on the device. In addition, the air supply device also needs to absorb the displacement and deformation of the blast furnace, the hot blast surrounding pipe and even the device itself due to heat by setting expansion joint components. The blast furnace air supply device is usually composed of the following components: reducer, expansion joint, elbow, peephole device, straight blowing pipe, upper tensioning device, lower tensioning device, and fasteners and seals at the connection of each component.

[0003] Since the circulating medium inside the air supply device is high temperature, high pressure, oxygen-rich hot air (temperature 1200-1300℃, pressure 0.3-0.55MPa, oxygen enrichment rate 3-5%), in order to ensure the safe operation of the device, refractory materials must be installed between the medium flow area and the steel shell. The refractory materials here are usually amorphous refractory materials, and the construction is carried out by adding water, stirring, pouring, ramming, heating and drying.

[0004] During the construction process, in order to ensure the spatial size of the medium through the flow basin, a casting mold with the same spatial size as the through flow basin is required to fill the through flow basin space, and then refractory material is poured between the casting mold and the steel shell.

[0005] After the pouring is completed and the refractory material is solidified and formed, the casting mold needs to be removed. The usual removal method is manual removal, which has extremely low work efficiency and is dangerous. In addition, due to the destructive removal, the removed casting mold cannot be used again, and the economic benefits are not ideal. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a demoulding tooling for an air supply device which has high safety, high working efficiency and can reuse the demoulding casting mold.

[0007] In order to solve the above technical problems, the present invention discloses a demoulding tooling for an air supply device, comprising: a variable frequency speed regulating motor, a cycloidal pinwheel reducer, an elastic sleeve pin coupling, a transmission shaft, a bidirectional thrust ball bearing, a bearing seat, a deep groove ball bearing, a connecting seal, a steel pipe nut, a sliding support plate, a screw, a bracket, a reducer seat, a bearing seat bracket, a steel pipe bracket, a positioning base plate and a plurality of adjusting screws;

[0008] The variable frequency speed regulating motor is directly connected to the cycloid pinwheel reducer, the cycloid pinwheel reducer is connected to the reducer seat by bolt connection, the output shaft of the cycloid pinwheel reducer is connected to the active end of the elastic sleeve pin coupling, and the driven end of the elastic sleeve pin coupling is connected to the transmission shaft; the bearing seat is connected to the bearing seat bracket, the left end of the bearing seat is loaded with the bidirectional thrust ball bearing, and the right end is loaded with the deep groove ball bearing, and the bidirectional thrust ball bearing and the deep groove ball bearing are fixed by connecting seals;

[0009] The right end of the transmission shaft is connected to the steel pipe nut through a B-type pin; the sliding support plate and the steel pipe bracket are slidably connected and arranged at the lower part of the steel pipe nut; the left side of the screw is connected to the steel pipe nut, and the right side of the screw is connected to the bracket;

[0010] The left end of the steel pipe bracket is welded to the bearing seat bracket, and the right end of the steel pipe bracket is welded to the positioning base plate; the adjusting screws are respectively arranged on both sides of the positioning base plate and the four corners of the reducer seat.

[0011] Optionally, the power of the variable frequency speed regulating motor is 4KW, and the reduction ratio of the cycloid pinwheel reducer is 11:1.

[0012] Optionally, the connection seal includes at least one of the following: a shaft shoulder, a spacer sleeve, a retaining ring and a pressure cover.

[0013] Optionally, when the connecting seal is a gland, a felt ring oil seal is provided in the gland for dustproof sealing, and the outer ring of the deep groove ball bearing retains an axial clearance of a preset size.

[0014] Optionally, the steel pipe nut is a hollow slender shaft structure, the main body of the steel pipe nut is a steel pipe, a through hole is provided at the left end and a nut made of round steel is provided at the right end, the through hole is used to insert a B-type pin shaft to connect with the transmission shaft, and the nut is a trapezoidal internal thread structure.

[0015] Optionally, the left side of the screw rod is a trapezoidal external thread, and the trapezoidal external thread is connected to the steel pipe nut; the right side of the screw rod is a common thread, and the common thread is connected to the bracket.

[0016] Optionally, the steel pipe support includes two steel pipes arranged in parallel, the left end of the steel pipe support is welded to the bearing seat support, the right end is welded to the positioning base plate, and two U-shaped round steels are arranged in the middle for connection and reinforcement.

[0017] Optionally, the reducer seat is made of steel plate, including 4 light holes on the left side for connecting with the cycloidal pinwheel reducer, the bearing seat bracket is welded on the right side, threaded holes are processed at the four corners of the reducer seat for installing the adjusting screw, and the bottom of the reducer seat is welded with ribs for reinforcement.

[0018] Optionally, the bearing seat bracket is processed by steel plate, the upper part of the bearing seat bracket is welded to the bearing seat, and the lower part of the bearing seat bracket is welded to the reducer seat.

[0019] Optionally, the positioning base plate is made of steel plate, a circular area is hollowed out in the middle of the steel plate to avoid the mold after it is ejected, and long holes are processed on both sides of the steel plate for connection with workpieces of different sizes; two small rib plates are welded on the positioning base plate, and threaded holes are processed on the two small rib plates, and the threaded holes are used to install the adjusting screw.

[0020] The present invention has the following advantages:

[0021] The demolding tooling for an air supply device disclosed in the embodiment of the present invention can, on the one hand, automatically demold the mold in the manufacturing process of the air supply device without the need for manual demolding, thereby reducing the labor intensity of workers and improving work efficiency; on the second hand, since mechanical power is used for demolding, there is no need for workers to go deep into the interior of the workpiece to operate, thereby improving the safety of workers' operations; on the third hand, the demolded mold can be reused, thereby reducing the cost of mold production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a demoulding tooling for an air supply device according to an embodiment of the present invention;

[0023] Figure 2 The present invention is a schematic diagram of the working state of a demoulding tooling of an air supply device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below based on specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The demoulding work of the air supply device of the present invention is a set of mechanical equipment, which consists of five parts: a control system, a power source, a transmission system, an actuator and a frame.

[0026] The control system adopts a reversing switch and is equipped with a frequency conversion module to control the forward and reverse rotation of the power source and adjust the speed; the power source consists of a 4-pole frequency conversion speed regulation motor and a cycloid pinwheel reducer; the transmission system consists of elastic sleeve pin coupling, transmission shaft, bidirectional thrust ball bearing, bearing seat, deep groove ball bearing and connecting seals and other parts; the actuator consists of a steel pipe nut, a sliding support plate, a screw and a bracket; the frame consists of a reducer seat, a bearing seat bracket, a steel pipe bracket, a positioning base plate and an adjusting screw.

[0027] The power source, transmission system and actuator are arranged linearly with the frame as the base.

[0028] The power source adopts the direct connection type of motor and reducer, and is fixed together with the reducer seat of the frame by bolt connection. The output shaft of the reducer is connected to the transmission shaft by an elastic sleeve pin coupling; the bearing seat is connected to the frame by welding, and a bidirectional thrust ball bearing is installed at the left end and a deep groove ball bearing is installed at the right end. The bearing is fixed by a shoulder, a spacer, a retaining ring, a gland and other parts, and a felt ring oil seal is set in the gland. The outer ring of the deep groove ball bearing retains a certain axial clearance, and the right end of the transmission shaft is connected to the steel pipe nut of the actuator through a B-type pin shaft; the steel pipe nut is a hollow thin Long-axis structure, with a through hole made on the left end, and a B-type pin inserted to connect with the transmission shaft, and the right end welded with a nut, the nut is a trapezoidal internal thread structure, and a sliding support plate is set at the bottom of the steel pipe nut to connect with the frame. The sliding support plate can slide freely on the steel pipe bracket to support and guide the steel pipe nut. The left side of the screw is a trapezoidal external thread, connected with the steel pipe nut, and the right side is a common thread, connected with the bracket. The bracket is a steel structure with a disc-shaped appearance, a threaded hole is set in the center, the left side is a conical transition shape, and the right side is a circular plane and a section of steel pipe is welded as an operating handle. The frame is a steel plate and steel pipe welding structure, and 6 adjustment screws are set to adjust the height and tilt angle of the whole set of equipment.

[0029] Figure 1 A schematic structural diagram of a demoulding tooling for an air supply device provided in an embodiment of the present invention.

[0030] Figure 1 The total consists of two parts, the upper part is a schematic diagram before being combined with the positioning base plate and the steel pipe bracket, and the lower part is a schematic diagram after being combined with the positioning base plate and the steel pipe bracket. Figure 1 As shown, the demolding tooling of the air supply device of the embodiment of the present invention includes: a variable frequency speed regulating motor 1, a cycloidal pinwheel reducer 2, an elastic sleeve pin coupling 3, a transmission shaft 4, a bidirectional thrust ball bearing 5, a bearing seat 6, a deep groove ball bearing 7, a connecting seal 8, a steel pipe nut 9, a sliding support plate 10, a screw 11, a bracket 12, a reducer seat 13, a bearing seat bracket 14, a steel pipe bracket 15, a positioning base plate 16, and an adjusting screw 17.

[0031] The variable frequency speed regulating motor 1 is directly connected to the cycloid pinwheel reducer 2, and the cycloid pinwheel reducer 2 is connected to the reducer base 13 by bolt connection. The output shaft of the cycloid pinwheel reducer 2 is connected to the active end of the elastic sleeve pin coupling 3, and the driven end of the elastic sleeve pin coupling 3 is connected to the transmission shaft 4; the bearing seat 6 is connected to the bearing seat bracket 14, and the bearing seat 6 can be connected to the bearing seat bracket 14 by welding; the left end of the bearing seat 6 is installed with a bidirectional thrust ball bearing 5, and the right end is installed with a deep groove ball bearing 7, and the bidirectional thrust ball bearing 5 and the deep groove ball bearing 7 are fixed by connecting the seal 8; the transmission The right end of the shaft 4 is connected to the steel pipe nut 9 through a B-type pin shaft; the sliding support plate 10 is slidably connected to the steel pipe bracket 15 and is arranged at the lower part of the steel pipe nut 9; the sliding support plate 10 and the steel pipe bracket 15 are naturally connected and not fixed, and the sliding support plate 10 can slide freely on the steel pipe bracket 15 to support the steel pipe nut 9 and guide it; the left side of the screw rod 11 is connected to the steel pipe nut 9, and the right side of the screw rod 11 is connected to the bracket 12; the bracket 12 is a steel structure with a disc-shaped appearance, a threaded hole is arranged in the center, the left side is a conical transition shape, the right side is a circular plane and a section of steel pipe is welded as an operating handle.

[0032] The left end of the steel pipe bracket 15 is welded to the bearing seat bracket 14, and the right end of the steel pipe bracket 15 is welded to the positioning base plate 16. Two U-shaped round steels can be set in the middle of the left and right ends for connection and reinforcement; there are 6 adjusting screws 17, which are respectively set on both sides of the positioning base plate 16 and the four corners of the reducer seat 13. The steel pipe bracket 15 can be made of two 20# steel pipes of the same model. The adjusting screw 17 can be made of round steel, with ordinary thread and full thread structure, and a standard nut is welded on one end, which is convenient for manual or electric wrench operation.

[0033] In an optional implementation, the power of the variable frequency speed regulating motor 1 is 4KW, and the reduction ratio of the cycloid pinwheel reducer 2 is 11:1.

[0034] In an optional embodiment, the connection seal 8 includes at least one of the following: a shaft shoulder, a spacer, a retaining ring, and a gland; in the actual implementation process, those skilled in the art can select the specific form of the connection seal according to actual needs. In the case where the connection seal 8 is a gland, a felt ring oil seal is provided in the gland for dustproof sealing, and the outer ring of the deep groove ball bearing 7 retains an axial clearance of a preset size.

[0035] In an optional embodiment, the steel tube nut 9 is a hollow slender shaft structure, the main body of the steel tube nut 9 is a steel tube, a through hole is provided at the left end and a nut made of round steel is provided at the right end, the through hole is used to penetrate the B-type pin shaft to connect with the transmission shaft 4, and the nut is a trapezoidal internal thread structure. The main steel tube of the steel tube nut 9 can be selected from 20# steel tube, and the effective length of the thread can be set to 80mm.

[0036] In an optional embodiment, the left side of the screw rod 11 is a trapezoidal external thread, which is connected to the steel pipe nut 9; the right side of the screw rod 11 is a common thread, which is connected to the bracket 12. The effective length of the trapezoidal thread is the screw rod length minus 200mm, and the effective length of the common thread is 80mm.

[0037] In an optional implementation, the steel pipe support 15 includes two parallel steel pipes, the left end of the steel pipe support 15 is welded to the bearing support 14, the right end is welded to the positioning base plate 16, and two U-shaped round steels are arranged in the middle for connection and reinforcement. The two parallel steel pipes are of the same model, and the same model of 20# steel pipes can be used.

[0038] In an optional embodiment, the reducer base 13 is made of steel plate, including 4 light holes on the left side for connecting with the cycloid pinwheel reducer 2, the bearing seat bracket 14 is welded on the right side, threaded holes are processed at the four corners of the reducer base 13 for installing the adjusting screw 17, and the bottom of the reducer base 13 is welded with a rib plate for reinforcement.

[0039] In an optional implementation, the bearing seat bracket 14 is processed by steel plate, the upper portion of the bearing seat bracket 14 is welded to the bearing seat 6, the lower portion of the bearing seat bracket 14 is welded to the reducer seat 13, and a rib plate is provided for reinforcement.

[0040] In an optional embodiment, the positioning base plate 16 is made of steel plate, a circular area is hollowed out in the middle of the steel plate to avoid the mold after being ejected, and long holes are processed on both sides of the steel plate for connection with workpieces of different sizes; two small rib plates are welded on the positioning base plate 16, and threaded holes are processed on the two small rib plates, and the threaded holes are used to install the adjusting screw 17. The size of the circular area can be set to Φ185mm.

[0041] Figure 2 The figure is a schematic diagram of the working state of a demoulding tooling of an air supply device according to an embodiment of the present invention. The demoulding tooling of an air supply device provided by an embodiment of the present invention can be regarded as a set of equipment. Before the equipment is put into operation, the equipment and the workpiece to be demoulded are placed on a horizontal ground, and the relative positions are adjusted by adjusting the screw rod: the flange side of the workpiece is pressed against the bottom plate on the far right of the frame. Bolts are inserted to position and tighten. The screw rod and the bracket are inserted on the other side of the workpiece, and the nuts are manually connected with the steel pipe.

[0042] After completing the preparation work, turn on the controller switch, the motor generates power, which is decelerated by the reducer, and then transmitted to the steel pipe nut through the coupling and transmission shaft, so that the steel pipe nut rotates. The screw and the bracket are in the workpiece to be demolded. After the bracket fits with the mold, the rotation of the screw will be restricted. At this time, the steel pipe nut and the screw will be screwed together, and the screw will be screwed into the steel pipe nut, driving the bracket and the mold to move to the left together, and finally pulling the mold out of the workpiece as a whole to complete the demolding work.

[0043] The demolding tooling for the air supply device provided in the embodiment of the present invention can, on the one hand, automatically demold the mold in the manufacturing process of the air supply device without the need for manual demolding, thereby reducing the labor intensity of workers and improving work efficiency; on the second hand, since mechanical power is used for demolding, there is no need for workers to go deep into the interior of the workpiece to operate, which can improve the safety of workers' operations; on the third hand, the demolded mold can be reused, thereby reducing the cost of mold production.

[0044] It should be noted that the above is only the best specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A demoulding tool for an air supply device, characterized in that: include: A variable frequency speed regulating motor (1), a cycloidal pinwheel reducer (2), an elastic sleeve pin coupling (3), a transmission shaft (4), a bidirectional thrust ball bearing (5), a bearing seat (6), a deep groove ball bearing (7), a connecting seal (8), a steel pipe nut (9), a sliding support plate (10), a screw (11), a bracket (12), a reducer seat (13), a bearing seat bracket (14), a steel pipe bracket (15), a positioning base plate (16) and a plurality of adjusting screws (17); The variable frequency speed regulating motor (1) is directly connected to the cycloidal pinwheel reducer (2), the cycloidal pinwheel reducer (2) is connected to the reducer base (13) by bolt connection, the output shaft of the cycloidal pinwheel reducer (2) is connected to the active end of the elastic sleeve pin coupling (3), and the driven end of the elastic sleeve pin coupling (3) is connected to the transmission shaft (4); the bearing seat (6) is connected to the bearing seat bracket (14), the left end of the bearing seat (6) is installed with the bidirectional thrust ball bearing (5), and the right end is installed with the deep groove ball bearing (7), and the bidirectional thrust ball bearing (5) and the deep groove ball bearing (7) are fixed by a connecting seal (8); The right end of the transmission shaft (4) is connected to the steel pipe nut (9) via a B-type pin shaft; the sliding support plate (10) is slidably connected to the steel pipe bracket (15) and is arranged at the lower part of the steel pipe nut (9); the left side of the screw rod (11) is connected to the steel pipe nut (9), and the right side of the screw rod (11) is connected to the bracket (12); The left end of the steel pipe bracket (15) is welded to the bearing seat bracket (14), and the right end of the steel pipe bracket (15) is welded to the positioning base plate (16); the adjusting screw (17) is respectively arranged on both sides of the positioning base plate (16) and on the four corners of the reducer base (13).

2. The demoulding tooling of the air supply device according to claim 1, characterized in that: The power of the variable frequency speed regulating motor (1) is 4KW, and the reduction ratio of the cycloid pinwheel reducer (2) is 11:

1.

3. The demoulding tooling of the air supply device according to claim 1, characterized in that: The connection seal (8) comprises at least one of the following: a shaft shoulder, a spacer sleeve, a retaining ring and a pressure cover.

4. The demoulding tooling of the air supply device according to claim 3 is characterized in that: When the connection seal (8) is a gland, a felt ring oil seal is arranged in the gland for dustproof sealing, and the outer ring of the deep groove ball bearing (7) retains an axial clearance of a preset size.

5. The demoulding tooling of the air supply device according to claim 1, characterized in that: The steel tube nut (9) is a hollow slender shaft structure. The main body of the steel tube nut (9) is a steel tube. A through hole is provided at the left end and a nut made of round steel is provided at the right end. The through hole is used to insert a B-type pin shaft to connect with the transmission shaft (4). The nut is a trapezoidal internal thread structure.

6. The demoulding tooling of the air supply device according to claim 1, characterized in that: The left side of the screw rod (11) is a trapezoidal external thread, which is connected to the steel pipe nut (9); the right side of the screw rod (11) is a common thread, which is connected to the bracket (12).

7. The demoulding tooling of the air supply device according to claim 1, characterized in that: The steel pipe bracket (15) comprises two steel pipes arranged in parallel, the left end of the steel pipe bracket (15) is welded to the bearing seat bracket (14), and the right end is welded to the positioning base plate (16), and two U-shaped round steels are arranged in the middle for connection and reinforcement.

8. The demoulding tooling of the air supply device according to claim 1, characterized in that: The reducer seat (13) is made of steel plate, and includes four light holes on the left side for connecting with the cycloid pinwheel reducer (2). The bearing seat bracket (14) is welded on the right side. The four corners of the reducer seat (13) are processed with threaded holes for installing the adjusting screw (17). The bottom of the reducer seat (13) is welded with a rib plate for reinforcement.

9. The demoulding tooling of the air supply device according to claim 8, characterized in that: The bearing seat bracket (14) is made of steel plate, the upper part of the bearing seat bracket (14) is welded to the bearing seat (6), and the lower part of the bearing seat bracket (14) is welded to the reducer seat (13).

10. The demoulding tooling of the air supply device according to claim 1, characterized in that: The positioning base plate (16) is made of steel plate, a circular area is hollowed out in the middle of the steel plate to avoid the mold after it is ejected, and long holes are processed on both sides of the steel plate for connection with workpieces of different sizes; Two small rib plates are welded to the positioning base plate (16), and threaded holes are processed on the two small rib plates. The threaded holes are used to install the adjusting screw rod (17).

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