Coupling anti-loosening device

Abstract

The present invention relates to a coupling anti-loosening device, including a tooth end assembly, a shaft assembly and a roller end assembly, wherein the shaft assembly is arranged between the roller end assembly and the tooth end assembly, and the roller end assembly includes a roller end outer tooth shaft sleeve, a gland assembly and a roller end inner tooth ring; the gland assembly is composed of a first gland and a second gland abutting each other, the inner ring of the gland assembly is assembled on the outer ring of the roller end outer tooth shaft sleeve, and the gland assembly is fixedly connected to the end face of the roller end inner tooth ring through a fastener. The present invention has a simple structure and is easy to use. The traditional cover structure is changed into a combined gland that combines the first gland and the second gland, so that the axial direction force generated by the coupling on the gland during installation, disassembly or use is transferred to the gland and the roller end inner tooth ring itself, avoiding the fastening bolts from being subjected to a large axial direction force, thereby improving labor efficiency.

Description

Technical Field

[0001] The invention relates to the field of mechanical transmission equipment, in particular to a coupling anti-loosening device for a mechanical structural part with a pressure cover. Background Art

[0002] With the advancement of infrastructure construction in my country, the market demand for bars, wires and other steel bars is increasing. Each bar and wire production line requires large, efficient, continuous and high-precision rolling equipment, which poses new challenges to the related spare parts industry. In order to meet the requirements of on-site production of high-precision and high-quality bar, wire and steel bar products, mechanical transmission equipment needs to operate continuously and efficiently.

[0003] like Figure 1 As shown, the existing rod and wire main transmission coupling structure is as follows: the tooth end assembly 3 is installed on the output shaft of the reducer, the shaft assembly 2 is placed between the roll end assembly and the tooth end assembly 3, and the roll end assembly is connected to the roll 1. The roll end assembly includes a roll end outer tooth shaft sleeve 4, a cover body 5, and a roll end inner tooth ring 6. The sealing ring 7 is installed on the inner circle of the cover body 5 and is sleeved on the outer circle of the roll end outer tooth shaft sleeve 4 together with the cover body 5. The bolt 9 passes through the gasket 8 and the cover body 5 in sequence and is fastened to the left end face of the roll end inner tooth ring 6.

[0004] During the use of the coupling of the existing structure, if the angle is too large during use or installation, it will cause the left end face of the outer teeth of the roller end outer gear sleeve 4 to interfere (collide) with the right end face of the cover 5, or when the roller 1 and the roller end outer gear sleeve 4 are separated, the roller 1 drives the roller end outer gear sleeve 4 to move, which will also cause the left end face of the outer teeth of the outer gear sleeve 4 to interfere (collide) with the right end face of the pressure cover 11. The interference point is Figure 2 As shown at D. The above situations will cause the bolt 9 to be stressed, loose or cut, affecting the normal use of the coupling and causing downtime accidents. The machine must be stopped in time to change the bolts. If the bolts are shortened, the machine needs to be offline for replacement of spare parts. Disassembly, maintenance, replacement and recovery require downtime of at least 2 hours, which seriously affects the production efficiency of the rolling mill, increases the maintenance labor intensity, and cannot meet the requirements of continuous rolling of modern metallurgical production lines. Summary of the invention

[0005] In view of the above-mentioned existing problems, the applicant has conducted research and improvements and provided a coupling anti-loosening device, which can prevent the axial force borne by the gland during the installation and use of the coupling from acting on the bolts, avoid maintenance shutdown accidents caused by loosening or shearing of the gland bolts, reduce maintenance labor intensity, and meet the requirements of the working characteristics of the continuous rolling mill.

[0006] The technical solution adopted by the present invention is as follows:

[0007] The coupling anti-loosening device comprises a tooth end assembly, a shaft assembly and a roller end assembly, wherein the shaft assembly is arranged between the roller end assembly and the tooth end assembly, and the roller end assembly comprises a roller end outer tooth shaft sleeve, a gland assembly and a roller end inner tooth ring; the gland assembly is composed of a first gland and a second gland abutting each other, the inner ring of the gland assembly is assembled on the outer ring of the roller end outer tooth shaft sleeve, and the gland assembly is fixedly connected to the end face of the roller end inner tooth ring through fasteners.

[0008] Its further technical solution is:

[0009] The inner circle of one end of the second gland matches with the outer circumference of the first gland, and the inner circle of the other end of the second gland matches with the outer circumference of the inner gear ring of the roller end;

[0010] The inner circle of one end of the second gland is assembled on the outer ring of the outer gear sleeve at the roller end, the inner circle of the other end of the second gland matches the outer circumference of the inner gear ring at the roller end, and the first gland is assembled in the inner groove of the second gland;

[0011] The inner circular end of the first gland abuts against the outer ring of the split slider, and the inner ring of the split slider cooperates with the outer gear sleeve of the roller end;

[0012] The inner circular end of the first gland abuts against the outer ring of the integrated slider, and the integrated slider extends along the outer ring of the roller end external gear sleeve to form a flange structure;

[0013] The specific structure of the first gland is as follows:

[0014] An integrated stepped circular structure is formed by connecting the upper outer circle and the lower outer circle, in which a sleeve assembly hole, a sealing ring assembly hole and a plurality of first bolt holes are provided; a first annular groove is also provided at the connection between the upper outer circle and the lower outer circle and along the outer circumference of the lower outer circle;

[0015] An arc surface is also provided on the outer end surface of the outer circle of the lower half;

[0016] The specific structure of the second gland is as follows:

[0017] The cover body comprises a gland body, on which an outer circle mounting hole for assembling a first gland, a roller end inner gear ring mounting step groove for assembling a roller end inner gear ring, and a plurality of second bolt holes are sequentially provided. The outer circle mounting hole is provided so that one end of the cover body forms a first inner circle end, and the roller end inner gear ring mounting step groove is provided so that the inner diameter of one end of the cover body forms a second inner circle end for assembling the roller end inner gear ring;

[0018] A second annular groove for matching with a second gland is also provided on the outer ring of the inner gear ring at the roller end;

[0019] The first pressure cover and the second pressure cover both adopt a split structure; the split structure is split into no less than two equal parts, and the split gap between adjacent split structures is no more than 0.2 mm.

[0020] The beneficial effects of the present invention are as follows:

[0021] The present invention has a simple structure and is easy to use. The traditional cover structure is changed into a combined cover composed of a first cover and a second cover, so that the axial force generated by the coupling on the cover during installation, disassembly or use is transferred to the cover and the inner gear ring of the roller end itself, avoiding the fastening bolts from being subjected to a large axial force. This avoids shutdowns caused by loosening or shearing failure of the cover bolts, reduces maintenance labor intensity, improves labor efficiency, and meets the requirements of the working characteristics of the continuous rolling mill. In addition, by setting an arc surface on the cover, the damage rate of the cover can also be reduced. By replacing the combination of the first cover and the second cover, an integrated slider or a split slider is added, thereby preventing the roller end outer gear sleeve from moving easily and exerting pressure on the first cover during the swinging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an existing coupling.

[0023] Figure 2 It is a schematic diagram of the local structure of the interference between the external gear sleeve and the pressure cover at the roller end of the existing structure.

[0024] Figure 3 It is a structural schematic diagram of the present invention.

[0025] Figure 4 It is a schematic structural diagram of the first gland in the present invention.

[0026] Figure 5 for Figure 4 Side view of.

[0027] Figure 6 It is a schematic structural diagram of the second gland in the present invention.

[0028] Figure 7 for Figure 6 Side view of.

[0029] Figure 8 The present invention is provided with a structural schematic diagram of a split slider.

[0030] Fig. 9 The present invention is provided with a structural schematic diagram of an integrated slider.

[0031] Among them: 1. Roller; 2. Shaft assembly; 3. Tooth end assembly; 4. Roller end outer tooth sleeve; 5. Cover body; 6. Roller end inner gear ring; 7. Sealing ring; 8. Washer; 9. Bolt; 10. First gland; 1001. First bolt hole; 1002. Upper half outer circle; 1003. Bushing assembly hole; 1004. First ring groove; 1005. Lower half outer circle; 1051. Arc surface; 1006. Sealing ring assembly hole; 11. Second gland; 1101. Second bolt hole; 1102. Outer circle mounting hole; 1103. Roller end inner gear ring assembly stepped groove; 1104. First inner circle end; 1105. Second inner circle end; 1106. Inner circle groove; 1301. Split slider; 1302. Integrated slider; 12. Second ring groove. DETAILED DESCRIPTION

[0032] The specific embodiments of the present invention are described below.

[0033] like Figure 3 As shown, the coupling anti-loosening device includes a tooth end assembly 3, a shaft assembly 2 and a roll end assembly. The shaft assembly 2 is placed between the roll end assembly and the tooth end assembly 3. The roll end assembly includes a roll end outer tooth shaft sleeve 4, a gland assembly and a roll end inner gear ring 6. The gland assembly is composed of a first gland 10 and a second gland 11 that abut against each other. The inner ring of the gland assembly is assembled on the outer ring of the roll end outer tooth shaft sleeve 4. The gland assembly is fixed to the end face of the roll end inner gear ring 6 through fasteners. Figure 3 As shown, the inner circle of one end of the second gland 11 matches with the outer circumference of the first gland 10 , and the inner circle of the other end of the second gland 11 matches with the outer circumference of the roller end inner gear ring 6 .

[0034] The inner circle of one end of the second gland 11 is assembled on the outer ring of the roller end external gear sleeve 4, and the inner circle of the other end of the second gland 11 matches with the outer circumference of the roller end internal gear ring 6. The first gland 10 is assembled in the inner circle groove 1106 of the second gland 11.

[0035] like Figure 8 As shown, the inner circular end of the first gland 10 abuts against the outer ring of the split slider 1301, and the inner ring of the split slider 1301 cooperates with the roller end outer gear sleeve 4. The arrangement of the split slider 1301 is convenient for later replacement.

[0036] like Fig. 9 As shown, the inner circular end of the first gland 10 abuts against the outer ring of the integrated slider 1302, and the integrated slider 1302 forms a flange structure along the outer ring of the roller end outer gear sleeve 4. The setting of the integrated slider 1302 fixes the installation position and has good stability.

[0037] The provision of the integrated slider 1302 or the split slider 1031 can prevent the roller end outer gear sleeve from moving up and down and exerting pressure on the first gland 10 during the swinging process.

[0038] like Figure 4 , Figure 5 As shown, the specific structure of the first gland 10 is as follows:

[0039] An integrated stepped circular structure is formed by connecting the upper outer circle 1002 and the lower outer circle 1005. A shaft sleeve assembly hole 1003, a sealing ring assembly hole 1006 and a plurality of first bolt holes 1001 are provided in the integrated stepped circular structure. The sealing ring 7 is assembled on the sealing ring assembly hole 1006. A first annular groove 1004 is also provided at the connection between the upper outer circle 1002 and the lower outer circle 1005 and along the outer periphery of the lower outer circle 1005. The first annular groove 1004 is used to snap into the first inner circle end 1104 of the second pressure cover 11. An arc surface 1051 is also provided on the outer end face of the lower outer circle 1005. During use, the contact effect of the arc surface 1051 is better than that of the traditional plane structure, which can effectively reduce the damage rate of the first pressure cover 10.

[0040] like Figure 6 , Figure 7 As shown, the specific structure of the second gland 11 is as follows:

[0041] It includes a gland body, on which an outer circular mounting hole 1102 for assembling the first gland 10, a roller end inner gear ring assembly step groove 1103 for assembling the roller end inner gear ring 6, and a plurality of second bolt holes 1101 are sequentially opened. The opening of the outer circular mounting hole 1102 forms a first inner circular end 1104 at one end of the cover body, and the opening of the roller end inner gear ring assembly step groove 1103 forms a second inner circular end 1105 for assembling the roller end inner gear ring 6 at the inner diameter of one end of the cover body.

[0042] The first pressure cover 10 and the second pressure cover 11 are both split structures, the number of splits of the split structure is not less than two equal parts, and the split gap between adjacent split structures is not greater than 0.2 mm.

[0043] The specific installation process of the present invention is as follows:

[0044] like Figure 3 As shown, in the actual assembly process, the second gland 11 is installed on the left end of the roller end inner gear ring 6, and the second inner circular end 1105 of the right end of the second gland 11 is inserted into the second annular groove 12 of the roller end inner gear ring 6. By providing the second annular groove 12, the second gland 11 can be fixed in the axial direction, so that the second gland 11 can withstand a larger axial force.

[0045] like Figure 3As shown, the first gland 10 is installed on the left end of the second gland 11 and is sleeved on the middle outer circle of the roller end external gear sleeve 4. The first inner circle end 1104 of the second gland 11 is inserted into the first annular groove 1004 of the first gland 10. The arrangement of the first annular groove 1004 fixes the first gland 10 and the second gland 11 as a whole in the axial direction, so that the first gland 10 can also withstand a larger axial force.

[0046] like Figure 3 As shown, the bolt 9 passes through the gasket 8, the first pressure cover 10, and the second pressure cover 11 in sequence and is fastened to the end face of the inner gear ring 6 at the roller end, so that when the outer gear sleeve 4 at the roller end interferes (collides) with the first pressure cover 10, the bolt 9 does not bear the impact force in the axial direction, and only serves to fix the first pressure cover 10 and the second pressure cover 11 on the end face of the inner gear ring 6 at the roller end.

[0047] The coupling anti-loosening device of the present invention is not limited to the use in the main transmission of rods and wires, but has obvious effects on other parts applied to the gland structure.

[0048] The present invention has a simple structure and is easy to use. The traditional cover body structure is changed into a combined cover which is composed of a first cover and a second cover, so that the axial force generated by the coupling on the cover during installation, disassembly or use is transferred to the cover and the inner gear ring of the roller end itself, thereby avoiding that the fastening bolts are subjected to a large axial force. This avoids shutdown caused by bolt shear failure, reduces maintenance labor intensity, improves labor efficiency, and meets the requirements of the working characteristics of the continuous rolling mill.

[0049] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. The present invention may be modified in any form without violating the basic structure of the present invention.

Claims

1. A coupling anti-loosening device, comprising a tooth end assembly (3), a shaft assembly (2) and a roller end assembly, wherein the shaft assembly (2) is disposed between the roller end assembly and the tooth end assembly (3), and characterized in that: The roller end assembly comprises a roller end outer gear sleeve (4), a gland assembly and a roller end inner gear ring (6); the gland assembly is composed of a first gland (10) and a second gland (11) which are abutted against each other, the inner ring of the gland assembly is assembled on the outer ring of the roller end outer gear sleeve (4), and the gland assembly is fixedly connected to the end face of the roller end inner gear ring (6) through a fastener; The inner circle of one end of the second gland (11) matches the outer circumference of the first gland (10), and the inner circle of the other end of the second gland (11) matches the outer circumference of the inner gear ring (6) at the roller end; The specific structure of the first gland (10) is as follows: An integrated stepped circular structure is formed by connecting an upper outer circle (1002) and a lower outer circle (1005), and a shaft sleeve assembly hole (1003), a sealing ring assembly hole (1006) and a plurality of first bolt holes (1001) are provided in the integrated stepped circular structure; a first annular groove (1004) is also provided at the connection between the upper outer circle (1002) and the lower outer circle (1005) and along the outer circumference of the lower outer circle (1005); An arc surface (1051) is also provided on the outer end surface of the lower half outer circle (1005); The specific structure of the second gland (11) is as follows: The cover body comprises a gland body, on which an outer circular mounting hole (1102) for assembling a first gland (10), a roller end inner gear ring assembly stepped groove (1103) for assembling a roller end inner gear ring (6), and a plurality of second bolt holes (1101) are provided. The outer circular mounting hole (1102) is provided so that one end of the cover body forms a first inner circular end (1104) for snapping into the first annular groove (1004). The roller end inner gear ring assembly stepped groove (1103) is provided so that the inner diameter of one end of the cover body forms a second inner circular end (1105) for assembling the roller end inner gear ring (6).

2. The coupling anti-loosening device according to claim 1, characterized in that: A second annular groove (12) for matching with a second gland (11) is also provided on the outer ring of the inner gear ring (6) at the roller end.

3. The coupling anti-loosening device according to claim 1, characterized in that: The first gland (10) and the second gland (11) both adopt a split structure; the number of splits of the split structure is not less than two equal parts, and the split gap between adjacent split structures is not greater than 0.2 mm.

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