Shaft seat fixing device for ferrous metallurgy transmission mechanism

Abstract

The utility model discloses a shaft seat fixing device for a ferrous metallurgy transmission mechanism, which comprises a machine frame and a shaft seat, the shaft seat and the machine frame are locked through a first bolt, two sides of a rotating shaft mounting position are respectively provided with an anti-loosening assembly, each anti-loosening assembly comprises a U-shaped plate and a lug plate, and the U-shaped plates and the lug plates are arranged on the two sides of the rotating shaft mounting position respectively. The U-shaped plate and the lug plate enclose to form a surrounding structure, the shaft seat and the rack are both surrounded in the surrounding structure formed by the U-shaped plate and the lug plate, the U-shaped plate stands laterally, a sliding groove is transversely formed in the portion, below the U-shaped plate, of the second supporting arm, and a wedge-shaped block is installed in the sliding groove. The first bolt and the additionally arranged anti-loosening assembly form double fixation, under the double fixation structure, the first bolt can be effectively prevented from loosening in the operation process, the stability of shaft seat fixation is remarkably improved, the equipment failure risk caused by loosening of the first bolt is reduced, and the service life of the shaft seat is prolonged. And safe operation of equipment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of axle seat fixing device, especially to a kind of axle seat fixing device for steel metallurgical transmission mechanism. BACKGROUND

[0002] In the steel metallurgical industry, the stable operation of transmission mechanism is crucial for production efficiency and equipment safety. These transmission mechanisms usually contain a large number of bearing bushes and bearing seats to support and fix rotating parts, ensuring the normal operation of the transmission system. The stability of bearing bushes and bearing seats is directly related to the reliability of the entire transmission system.

[0003] Bearing bushes or bearing seats 101 are usually fixed in the rack 103 by bolts 102, as shown in Figure 1 This fixing method is simple and widely used in the industrial field. However, due to the special working environment of the steel metallurgical industry, this fixing method has many problems. First, during the operation of steel metallurgical equipment, strong vibrations may occur due to mechanical vibrations, impact loads, and uneven load distribution. These vibrations can cause the pre-tightening force of the bolts to gradually decrease, eventually causing the bolts to loosen, especially under the action of transverse vibration, the loosening speed of the bolts is faster, and the pre-tightening force decreases more. Second, the working environment of the steel metallurgical industry is usually harsh, and the equipment is exposed to high temperature, high humidity and corrosive gases for a long time. This environment can easily cause the surface of the bolt to rust, thereby reducing the mechanical properties and connection strength of the bolt. Rust not only weakens the tensile strength of the bolt, but also reduces the friction coefficient between the bolt and the nut, further exacerbating the loosening of the bolt.

[0004] Due to the above vibration and rust problems, the bolts of the axle seat are prone to loosen or even break. Once the bolts loosen or break, the axle seat will not be firmly fixed on the rack, causing the axle seat to fall off. The falling off of the axle seat not only damages the transmission mechanism, but also may cause serious equipment accidents, causing huge economic losses.

[0005] Currently, in order to prevent the loosening and breaking of the bolts, the following methods are usually used:

[0006] 1. Increase the pre-tightening force of the bolt: increase the pre-tightening force by increasing the tightening torque of the bolt, but this may cause the bolt to bear excessive stress during operation, thereby accelerating fatigue failure;

[0007] 2. Use a lock washer or nut: although it can increase the friction between the threads, but under high-intensity vibration and harsh environment, the effect of these measures is limited;

[0008] 3. Regular inspection and maintenance: Although loose bolts can be found in time, it does not solve the root problem, and in actual operation, due to the large number of equipment and long inspection period, it is difficult to ensure that all bolts can be maintained in time.

[0009] In summary, the prior art has obvious limitations in solving the problem of loose and broken bolts of the shaft seat, and cannot fundamentally eliminate the risk of equipment accidents. Therefore, developing a new type of fixing device that can effectively prevent bolt loosening is of great significance to the safety and production efficiency of the steel metallurgical industry. Utility model content

[0010] The utility model discloses a shaft seat fixing device for steel metallurgical transmission mechanism.

[0011] The technical scheme for realizing the utility model is as follows: a shaft seat fixing device for steel metallurgical transmission mechanism, comprising a rack and a shaft seat, the shaft seat is located below the rack, a first bolt hole is vertically provided on the rack, a second bolt hole is vertically provided on the shaft seat, the first bolt hole and the second bolt hole correspond one by one, each first bolt hole is provided with a first bolt correspondingly, the first bolt passes through the corresponding first bolt hole and second bolt hole, the shaft seat and the rack are tightly fastened, the middle part of the shaft seat has a rotating shaft mounting position, each side of the rotating shaft mounting position is provided with an anti-loose assembly, the anti-loose assembly comprises a U-shaped plate and an ear plate, the U-shaped plate has a first branch and a second branch, the U-shaped plate and the ear plate are fixedly connected, the U-shaped plate and the ear plate form an enclosing structure, the shaft seat and the rack are enclosed in the enclosing structure formed by the U-shaped plate and the ear plate, the U-shaped plate is vertically arranged, the first branch and the second branch of the U-shaped plate are distributed vertically, the first branch is tightly attached to the upper surface of the rack, a sliding groove is horizontally provided on the second branch, a wedge-shaped block is installed in the sliding groove, and the upper surface of the wedge-shaped block is tightly fastened with the bottom surface of the shaft seat.

[0012] Further, a third bolt hole is provided on the U-shaped plate, a fourth bolt hole is provided on the ear plate, the third bolt hole and the fourth bolt hole correspond one by one, each third bolt hole is provided with a second bolt correspondingly, the second bolt passes through the corresponding third bolt hole and fourth bolt hole, and the U-shaped plate and the ear plate are tightly fastened. The mounting structure of the U-shaped plate and the ear plate is various, and can be welded or fixed, compared with the locking structure of the second bolt, which is convenient to disassemble and assemble and firmly fixed.

[0013] Further, the sliding slot is parallel to the length direction of the rack. The sliding slot can be parallel or inclined to the length direction of the rack. Compared with the inclined arrangement, the parallel arrangement is more in line with the operation habit and is convenient for operation.

[0014] Further, the wedge-shaped block is triangular. Preferably, it is a right-angled triangle.

[0015] Further, the bottom of one end of the wedge-shaped block extends downward with an extension, a threaded hole is formed in the extension, the threaded hole is parallel to the sliding slot, a screw rod is arranged in the threaded hole, and the screw rod is screwed with the threaded hole. When the wedge-shaped block is disassembled from the sliding slot, the screw rod is first rotated, the end of the screw rod is in contact with the second branch of the U-shaped plate, and then the screw rod is continuously rotated. After the end of the screw rod is limited by the second branch, the screw rod is rotated to drive the wedge-shaped block, and the wedge-shaped block is pulled out of the sliding slot. The arrangement of the screw rod facilitates the disassembly and assembly of the wedge-shaped block.

[0016] The utility model discloses a shaft seat fixing device for steel smelting transmission mechanism, on the basis of the locking structure of first bolt, add the anti -loose sub -assembly, the anti -loose sub -assembly including the U -shaped plate and the lug board is a surrounding structure, the shaft seat and the rack are all surrounded, and the shaft seat and the rack are further locked and fixed. The first bolt and the anti-loose sub-assembly form a double fixing structure, which can effectively prevent the shaft seat from falling off due to vibration and loosening of the first bolt during operation, improve the stability of the shaft seat, reduce the risk of equipment failure caused by loosening of the first bolt, ensure the safe operation of the equipment, and reduce maintenance cost and downtime.

[0017] The utility model discloses a shaft seat fixing device for steel smelting transmission mechanism, the double fixed structure of first bolt and anti -loose sub -assembly, the first bolt horizontal does not exist thread loosening problem, and the limit is stable, and the loosening of first bolt mainly is in vertical, and vertical is the weak point of first bolt fixed firm, on the contrary, in the anti-loose sub-assembly that adds, the U -shaped plate side stands, the first branch and the second branch of U -shaped plate distribute up and down, and when the first branch and the second branch that distribute up and down fasten the shaft seat and the rack from top to bottom, the structural strength of integral first branch and second branch is strong, and the firmness of vertical limit of the shaft seat and the rack from top to bottom is high. The high firmness of vertical limit of anti -loose sub -assembly is good in compensation the weak point of vertical definition of first bolt, makes the double fixed structure of first bolt and anti -loose sub -assembly be firmly, reliably in all directions limit can, greatly improve the stability of the shaft seat fixed.

[0018] In addition, the shaft seat fixing device for the steel metallurgical transmission mechanism has the following advantages: the sliding groove is horizontally arranged on the upper surface of the second supporting arm, the wedge-shaped block is arranged in the sliding groove and can slide along the sliding groove, the height between the first supporting arm and the second supporting arm can be adjusted by changing the position of the wedge-shaped block in the sliding groove and the depth of the wedge-shaped block inserted into the anti-loosening assembly, and the first supporting arm and the second supporting arm are usually slightly larger than the total thickness of the shaft seat and the rack when the shaft seat and the rack are tightly surrounded by the U-shaped plate, so that the upper surface of the wedge-shaped block is tightly fixed with the bottom surface of the shaft seat by inserting the wedge-shaped block, the fastening degree of the shaft seat and the rack in the anti-loosening assembly is enhanced, and a firm connection relationship is formed between the shaft seat, the rack and the anti-loosening assembly; in addition, the height between the first supporting arm and the second supporting arm can be adjusted by the wedge-shaped block when the total thickness of the shaft seat and the rack is different, so that the fixing of the shaft seat and the rack with different total thicknesses is adapted, the adaptability is high, and the application flexibility is high.

[0019] The shaft seat fixing device for the steel metallurgical transmission mechanism has the following advantages: the innovative fixing structure and the anti-loosening design significantly improve the fixing stability of the shaft seat, the safety and the operation efficiency of the equipment, reduce the maintenance cost and the equipment failure risk, and have significant economic and social benefits. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a structural schematic view of the existing shaft seat fixing device for the steel metallurgical transmission mechanism;

[0021] Figure 2 Fig. 2 is a front perspective structural schematic view of the shaft seat fixing device for the steel metallurgical transmission mechanism of the utility model;

[0022] Figure 3 Fig. 3 is a side perspective structural schematic view of the shaft seat fixing device for the steel metallurgical transmission mechanism of the utility model without the wedge-shaped block;

[0023] Figure 4 Fig. 4 is a side structural schematic view of the shaft seat fixing device for the steel metallurgical transmission mechanism of the utility model without the rack and the shaft seat;

[0024] Figure 5 Fig. 5 is a structural schematic view of the second supporting arm of the U-shaped plate in the shaft seat fixing device for the steel metallurgical transmission mechanism of the utility model along the direction of arrow B in Fig. 2; Figure 4 Fig. 6 is a sectional structural schematic view along the line A-A in Fig. 5. DETAILED DESCRIPTION

[0025] The preferred embodiments of the shaft seat fixing device for steel metallurgical transmission mechanism are described in detail below with reference to the drawings.

[0026] As Figure 2 To Figure 5 As shown in the drawings, a shaft seat fixing device for steel metallurgical transmission mechanism, comprising a rack 1 and a shaft seat 2, the shaft seat 2 is located below the rack 1, the rack 1 is vertically provided with a first bolt hole 31, the shaft seat 2 is vertically provided with a second bolt hole 32, the first bolt hole 31 and the second bolt hole 32 are one-to-one corresponding, each first bolt hole 31 is provided with a first bolt 3, the first bolt 3 passes through the corresponding first bolt hole 31 and the second bolt hole 32, the shaft seat 2 and the rack 1 are tightly fastened, the shaft seat 2 has a rotating shaft mounting position 20 in the middle, each side of the rotating shaft mounting position 20 is provided with a loosening prevention assembly 4, the loosening prevention assembly 4 comprises a U-shaped plate 41 and an ear plate 42, the U-shaped plate 41 has a first branch 411 and a second branch 412, the U-shaped plate 41 and the ear plate 42 are fixedly connected, the U-shaped plate 41 and the ear plate 42 are surrounded to form a surrounding structure, the shaft seat 2 and the rack 1 are surrounded in the surrounding structure formed by the U-shaped plate 41 and the ear plate 42, the U-shaped plate 41 is vertically arranged, the first branch 411 and the second branch 412 of the U-shaped plate 41 are distributed vertically, the first branch 411 is tightly attached to the upper surface of the rack 1, the second branch 412 is transversely provided with a sliding groove 50, the sliding groove 50 is installed with a wedge block 5, the upper surface of the wedge block 5 is tightly fastened with the bottom surface of the shaft seat 2.

[0027] The shaft seat fixing device for steel metallurgical transmission mechanism has a double fixing structure, one is locked by the first bolt 3, and the other is fixed by the loosening prevention assembly 4.

[0028] The utility model is used to the axle seat fixing device of steel smelting transmission mechanism, on the basis of the locking structure of first bolt 3, add the anti looseness subassembly 4, the anti looseness subassembly 4 including the U type board 41 and the ear plate 42 is a surrounding structure, the axle seat 2 and the rack 1 are surrounded, the axle seat 2 and the rack 1 are further locked and fixed. The first bolt 3 of tradition and the anti looseness subassembly 4 of adding form double fixed, under this double fixed structure, can effectively prevent the axle seat 2 from falling off due to vibration and the first bolt 3 loosening during operation, which significantly improves the stability of the axle seat 2, reduces the equipment failure risk caused by the loosening of the first bolt 3, ensures the safe operation of the equipment, reduces the maintenance cost and downtime.

[0029] The utility model is used to the axle seat fixing device of steel smelting transmission mechanism, in the double fixed structure formed by first bolt 3 and anti looseness subassembly 4, the first bolt 3 horizontal does not have the problem of thread loosening, and the limit is stable, and the loosening of the first bolt 3 is mainly in the vertical direction, and the vertical direction is the weak point of the first bolt 3 fixed firmly. On the contrary, in the anti looseness subassembly 4 of adding, the U type board 41 side stands, and the first supporting arm 411 and the second supporting arm 412 of the U type board 41 are distributed up and down, and when the first supporting arm 411 and the second supporting arm 412 distributed up and down fasten the axle seat 2 and the rack 1 from top and bottom, the structural strength of the first supporting arm 411 and the second supporting arm 412 is strong, and the firmness of the vertical limit of the axle seat 2 and the rack 1 from top and bottom is high. The high firmness of the vertical limit of the anti looseness subassembly 4 well compensates for the weak point of the vertical limit of the first bolt 3, so that the double fixed structure formed by the first bolt 3 and the anti looseness subassembly 4 can be firmly and reliably limited in all directions, which greatly improves the stability of the axle seat 2 fixed.

[0030] In addition, the utility model is used for steel metallurgical transmission mechanism's axle seat fixing device, has set up the sliding groove 50 on the upper surface of second branch 412 transversely, the wedge block 5 has been installed in the sliding groove 50, the wedge block 5 can slide along the sliding groove 50, by changing the position of wedge block 5 in the sliding groove 50, the depth of wedge block 5 inserted into the anti-loosening assembly 4, the height between first branch 411 and second branch 412 can be adjusted. Under this setting, on one hand, when the axle seat 2 and the rack 1 are fastened, to put the axle seat 2 and the rack 1 into the U-shaped plate 41, the distance between the first branch 411 and the second branch 412 is usually slightly greater than the total thickness of the axle seat 2 and the rack 1, at this time, the upper surface of the wedge block 5 can be fastened with the bottom surface of the axle seat 2 by inserting the wedge block 5, to enhance the fastening degree of the axle seat 2 and the rack 1 locked in the anti-loosening assembly 4, to form a firm connection relationship between the axle seat 2, the rack 1 and the anti-loosening assembly 4, on the other hand, when the total thickness of the axle seat 2 and the rack 1 is different, the height between the first branch 411 and the second branch 412 can also be adjusted by the wedge block 5 to adapt to the fixation of the axle seat 2 and the rack 1 with different total thickness, which has strong adaptability and high application flexibility.

[0031] The utility model is used for steel metallurgical transmission mechanism's axle seat fixing device, through the innovative fixed structure and the anti-loosening design, the fixed stability of axle seat, the safety and operating efficiency of equipment have been improved obviously, reduced maintenance cost and equipment failure risk simultaneously, has remarkable economic and social benefits.

[0032] The utility model is used for steel metallurgical transmission mechanism's axle seat fixing device, preferably, the third bolt hole 61 is set up on the U-shaped plate 41, the fourth bolt hole 62 is set up on the ear plate 42, the third bolt hole 61 and the fourth bolt hole 62 correspond one by one, every third bolt hole 61 all is equipped with the second bolt 6 correspondingly, the second bolt 6 passes through corresponding third bolt hole 61 and fourth bolt hole 62, the U-shaped plate 41 and ear plate 42 fit tightly. The mounting structure of U-shaped plate 41 and ear plate 42 is various, can weld, bind, compared with the prior art, through the locking structure of second bolt 6, it is convenient to dismount simultaneously, and fixed firm.

[0033] The utility model is used to shaft seat fixing device of steel metallurgy transmission mechanism, preferably, the length direction of slide groove 50 with the frame 1 is parallel. The length direction of slide groove 50 with the frame 1 can be parallel, also can be inclined arrangement. Compared with inclination, parallel setting is more in line with operation habit, and it is convenient to operate.

[0034] The utility model is used to shaft seat fixing device of steel metallurgy transmission mechanism, preferably, the length direction of slide groove 50 with the frame 1 is parallel. The length direction of slide groove 50 with the frame 1 can be parallel, also can be inclined arrangement. Compared with inclination, parallel setting is more in line with operation habit, and it is convenient to operate.

[0035] The utility model is used to shaft seat fixing device of steel metallurgy transmission mechanism, preferably, the length direction of slide groove 50 with the frame 1 is parallel. The length direction of slide groove 50 with the frame 1 can be parallel, also can be inclined arrangement. Compared with inclination, parallel setting is more in line with operation habit, and it is convenient to operate.

[0036] The utility model is used to shaft seat fixing device of steel metallurgy transmission mechanism, preferably, the length direction of slide groove 50 with the frame 1 is parallel. The length direction of slide groove 50 with the frame 1 can be parallel, also can be inclined arrangement. Compared with inclination, parallel setting is more in line with operation habit, and it is convenient to operate.

Claims

1. A shaft seat fixing device for a transmission mechanism in steel metallurgy, comprising a frame and a shaft seat, the shaft seat being located below the frame, a first bolt hole vertically formed on the frame, and a second bolt hole vertically formed on the shaft seat, the first bolt hole and the second bolt hole corresponding one-to-one, each first bolt hole corresponding to a first bolt, the first bolt passing through the corresponding first bolt hole and second bolt hole, the shaft seat and the frame being fitted and fastened together, the shaft seat having a rotating shaft mounting position in the middle, characterized in that: The anti-loosening assembly is arranged on both sides of the rotating shaft mounting position, and comprises a U-shaped plate and an ear plate.

2. The shaft seat fixing device for steel metallurgical transmission mechanism according to claim 1, characterized in that: The U-shaped plate has a first branch and a second branch, and the U-shaped plate and the ear plate are fixedly connected.

3. The shaft seat fixing device for steel metallurgical transmission mechanism according to claim 1, characterized in that: The U-shaped plate and the ear plate form an enclosing structure, and the shaft seat and the rack are enclosed in the enclosing structure formed by the U-shaped plate and the ear plate.

4. The shaft seat fixing device for steel metallurgical transmission mechanism according to claim 1, characterized in that: The U-shaped plate is vertically arranged, and the first branch and the second branch of the U-shaped plate are distributed vertically.

5. The shaft seat fixing device for steel metallurgical transmission mechanism according to claim 1, characterized in that: The first branch is in close contact with the upper surface of the rack. A sliding groove is horizontally arranged on the second branch. A wedge-shaped block is arranged in the sliding groove. The upper surface of the wedge-shaped block is in close contact with the bottom surface of the shaft seat. A third bolt hole is arranged on the U-shaped plate. A fourth bolt hole is arranged on the ear plate. The third bolt hole and the fourth bolt hole are one-to-one corresponding. Each third bolt hole is provided with a second bolt. The second bolt passes through the corresponding third bolt hole and fourth bolt hole. The U-shaped plate and the ear plate are in close contact. The sliding groove is parallel to the length direction of the rack. The wedge-shaped block is triangular. An extension is arranged on one end of the bottom of the wedge-shaped block. A threaded hole is arranged on the extension. The threaded hole is parallel to the sliding groove. A screw rod is arranged in the threaded hole. The screw rod is threadedly connected with the threaded hole.

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