Cardan shaft middle connecting pipe assembly bracket position repairing structure

Abstract

The utility model discloses a bracket position repairing structure of a cardan shaft middle connecting pipe assembly, the middle connecting pipe assembly comprises a connecting pipe, a bracket position is arranged on the outer circle of the connecting pipe, and the outer circle size of the bracket position is smaller than the outer circle size of the connecting pipe. A bracket is arranged on the connecting pipe, an annular welding flange formed by two half flange units is welded on the outer circle of the connecting pipe on the two sides of the bracket, a circular-sleeve-shaped spacer sleeve formed by welding two half spacer sleeve units is arranged at the bracket, and the welding flange is detachably connected with the spacer sleeve. By applying the position repairing structure for the bracket of the universal shaft middle connecting pipe assembly, the problem of repairing the position of the bracket of the universal shaft middle connecting pipe assembly can be effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coupling equipment, and in particular relates to a universal joint shaft intermediate pipe assembly bracket position repair structure. Background Art

[0002] With the development of the machinery industry and increasing customer demands for equipment, long-term maintenance is essential to ensure the long-term and effective operation of equipment, and remanufacturing is a key method for repairing equipment. The flangeless universal coupling is a common coupling and is often used in conjunction with a bracket assembly. The intermediate pipe assembly of the component meets the bracket assembly, reducing bending deformation caused by gravity and ensuring smooth operation of the universal joint. Figure 10 The schematic diagram of the structure of the intermediate pipe assembly 1 is shown. It consists of a pipe 15 and end flanges 16 welded to both ends of the pipe 15. The middle position of the pipe 15 is the bracket position 11. The outer diameter of the bracket position 11 is smaller than the pipe size of the pipes 15 on both sides. Due to the long-term rolling friction of the mating surface of the bracket position of the intermediate pipe assembly, the size of the mating surface is worn and reduced. When the wear of the bracket position of the intermediate pipe assembly is small, it is usually repaired directly by surface surfacing technology; when the wear is large, the same pipe has a thinner wall due to greater wear, and the surfacing repair requires increasing the number of surfacing layers to ensure the processing allowance. However, the increase in the surfacing amount causes the pipe to bend and deform due to the welding heat reaction, making it unusable; and if the entire intermediate pipe assembly is scrapped and a new one is made, the labor time and cost are too high, which is not conducive to the orderly progress of production. Utility Model Content

[0003] In view of the defects existing in the background technology, the utility model provides a universal joint intermediate pipe assembly bracket position repair structure, which effectively solves the problem of repairing the universal joint intermediate pipe assembly bracket position.

[0004] The technical solution of this utility model to solve the technical problem is as follows:

[0005] According to one aspect of the present application, a structure for repairing the bracket position of an intermediate connecting pipe assembly of a universal joint is provided, wherein the intermediate connecting pipe assembly includes a connecting pipe, and a bracket position with an outer circle size smaller than the outer circle size of the connecting pipe is provided on the outer circle of the connecting pipe on both sides of the bracket position, and an annular welding flange composed of two half-flange units is welded on the outer circle of the connecting pipe on both sides of the bracket position, and a circular sleeve-shaped stopper sleeve formed by welding two half-stopper sleeve units is provided at the bracket position, and the welding flange and the stopper sleeve are detachably connected.

[0006] Furthermore, the semi-flange unit includes a semi-circular semi-flange body, and the semi-flange body is provided with a plurality of first bolt holes; the semi-blocking sleeve unit includes a semi-circular sleeve portion and a semi-flange portion arranged at both ends of the semi-circular sleeve portion, and the semi-flange portion is provided with a plurality of second bolt holes. The first bolt holes of the semi-flange body of the welding flange correspond one-to-one to the second bolt holes of the semi-blocking sleeve unit of the block sleeve and are fixed by a detachable bolt connection.

[0007] Furthermore, a round steel wire is welded to each of the bolts.

[0008] Furthermore, the first bolt hole and the second bolt hole are both countersunk holes.

[0009] Furthermore, the first bolt holes on the two welding flanges are aligned in phase.

[0010] Furthermore, the connecting pipe is provided with a first step circle on both sides of the bracket position, and a first groove is provided at the edges of the two ends of the first step circle; the inner arc of the semi-flange body is adapted to the first step circle, and a second groove is provided at a position corresponding to the first groove, and the first groove and the second groove are welded to form a second groove weld, and a fillet weld is formed between the outer side wall of each semi-flange body and the connecting pipe by welding; the axial edges of the semi-circular sleeve parts of the two semi-blocking sleeve units are respectively provided with a third groove and a first groove weld is formed by welding.

[0011] Furthermore, the inner circle of the half flange is respectively provided with a second arc groove, and the positions on both sides of the bracket corresponding to the second arc grooves are respectively provided with a first arc groove, and a sealing ring is commonly provided in each corresponding first arc groove and second arc groove.

[0012] Compared with the existing technology, the utility model provides a universal joint intermediate pipe assembly bracket position repair structure, which has a simple structure, uses common materials, is easy to process and manufacture, can effectively save materials and processing time, reduce maintenance costs, and subsequent repair operations are convenient and simple, and the sleeve material can also be changed according to needs to achieve better use effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a front schematic diagram of the utility model;

[0015] Figure 3 for Figure 2 Schematic diagram of the middle AA direction;

[0016] Figure 4 for Figure 2 Middle BB direction diagram

[0017] Figure 5 for Figure 2 Schematic diagram of CC direction

[0018] Figure 6 for Figure 4 Enlarged schematic diagram of the middle position;

[0019] Figure 7 This is an enlarged schematic diagram of the middle bracket position of the middle pipe of the utility model;

[0020] Figure 8 This is a schematic diagram of the welding flange in the present utility model;

[0021] Figure 9 This is a schematic diagram of the middle block sleeve of the utility model;

[0022] Figure 10 A schematic diagram of an existing intermediate pipe assembly.

[0023] In the figure: 1. Intermediate pipe assembly; 11. Bracket position; 12. First step circle; 13. First groove; 14. First arc-shaped groove; 15. Pipe; 16. End flange; 2. Welding flange; 21. Half flange unit; 211. Half flange body; 212. First bolt hole; 213. Second groove; 3. Stop sleeve; 31. Half stop sleeve unit; 311. Half flange portion; 312. Semicircular sleeve portion; 313. Second arc-shaped groove; 314. Third groove; 315. Second bolt hole; 4. Sealing ring; 5. Bolt; 6. Steel wire; 7. First groove weld; 8. Second groove weld; 9. Fillet weld. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs. The terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", "second", "first", etc. used in the patent application specification and claims of this disclosure are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship also changes accordingly. What is not described in detail in the present invention is the common knowledge of those skilled in the art in this field.

[0025] like Figure 1-10 As shown, the present application discloses a structure for repairing the bracket position of an intermediate pipe assembly of a universal joint. The intermediate pipe assembly 1 includes a pipe 15. A bracket position 11 having an outer circumference smaller than that of the pipe 15 is provided on the outer circumference of the pipe 15. The pipe 15 has end flanges 16 at both ends. Circular welding flanges 2 composed of two half-flange units 21 are welded to the outer circumference of the pipe 15 on both sides of the bracket position 11. A circular sleeve-shaped stopper 3 composed of two half-stopper units 31 is provided at the bracket position 11. The welding flanges 2 and the stopper 3 are detachably connected.

[0026] In this embodiment, Figure 8 As shown, the welding flange 2 is composed of two half-flange units 21, which are convenient for installation on the outside of the pipe 15. Each half-flange unit 21 includes a semi-circular half-flange body 211. The half-flange body 211 is provided with a plurality of first bolt holes 212. The first bolt holes 212 on the two welding flanges 2 are aligned in phase; as shown Figure 6 、 8 As shown in Figure 9, the retaining sleeve 3 is composed of two half-retaining sleeve units 31, which are convenient for installation at the bracket position 11. Each half-retaining sleeve unit 31 includes a semicircular sleeve portion 312 and a half-flange portion 311 provided at both ends of the semicircular sleeve portion 312. The half-flange portion 311 is provided with a plurality of second bolt holes 315. The first bolt holes 212 of the half-flange body 211 of the welding flange 2 respectively correspond to the second bolt holes 315 of the half-retaining sleeve unit 31 of the retaining sleeve 3 and are detachably connected and fixed by bolts 5. The first bolt holes 212 and the second bolt holes 315 are preferably countersunk holes to facilitate subsequent lathe operations. In order to prevent the bolts 5 from loosening, a round steel wire 6 can also be welded to each bolt 5 to fix the bolts 5. Flat keys and other anti-loosening methods can also be used to fix the bolts 5.

[0027] In this embodiment, the connecting pipe 15 is provided with a first step circle 12 on both sides of the bracket position 11, which is convenient for setting the welding flange 2, and a first groove 13 is provided at the edge of the end of the two first step circles 12; the inner arc of the semi-flange body 211 is adapted to the first step circle 12, and a second groove 213 is provided at a position corresponding to the first groove 13. The first groove 13 and the second groove 213 are welded to form a second groove weld 8, and a fillet weld 9 is formed between the outer wall of each semi-flange body 211 and the connecting pipe 15 by welding; the axial edges of the semicircular sleeve portions 312 of the two half-blocking sleeve units 31 are respectively provided with a third groove 314 and a first groove weld 7 is formed by welding.

[0028] In this embodiment, the inner circle of the half flange portion 311 is respectively provided with a second arc-shaped groove 313, and the first arc-shaped groove 14 is respectively provided at the positions corresponding to the second arc-shaped grooves 313 on both sides of the bracket position 11. Each corresponding first arc-shaped groove 14 and second arc-shaped groove 313 form a sealing ring groove and are jointly provided with a sealing ring 4. The sealing ring 7 is made of round rubber, which is cut into a suitable length and installed in the sealing ring groove of the bracket position of the intermediate pipe assembly.

[0029] During application, after the bracket position 11 on the pipe 15 is worn, the rust fatigue layer at the bracket position 11 is first removed to make the outer circle of the bracket position 11 bright, so as to avoid interference with the stopper 3 due to rust, and also to avoid loose welding and cracking due to rust. The outer circle of the pipes 15 on both sides of the bracket position 11 is used as the mating surface of the welding flange 2, and a first step circle 12 is opened, and the end edge of the first step circle 12 is chamfered as a first groove 13. A second arc groove 313 is processed at the bracket position 11 near the mating surface of the welding flange 2 for assembling the sealing ring 4; a second groove 213 is opened on the edge of each half flange body 211 of the welding flange 2, and then assembled outside the first step circle 12, and the two sides of the welding flange 2 are welded around. A second groove weld 7 and a fillet weld 8 are formed respectively, avoiding the screw hole position on the outside, and the weld is flattened after the inside is welded to avoid interference with the stop sleeve 3 in the later stage. Note that the phases of the screw holes of the welding flanges on both sides must be kept consistent; a margin is left in the outer circle size of the middle semicircular sleeve 312 of the stop sleeve 3 to facilitate turning the outer circle after welding, and a third groove 314 is opened on the axial edge respectively, and a second arc groove 313 corresponding to the first arc groove is opened on the inner circle of the half flange 311, and then the sealing ring 4 is installed, and the two half stop sleeve units 31 are installed correspondingly on the outside of the bracket position 11, and are connected and fixed with the welding flanges 2 on both sides by bolts 5, and the corresponding third groove 314 is welded to form the first groove weld 7, and then the outer circle of the semicircular sleeve 312 and the weld are flattened to the required size.

Claims

1. A structure for repairing the bracket position of an intermediate pipe assembly of a universal joint, wherein the intermediate pipe assembly (1) comprises a pipe (15), and a bracket position (11) having an outer circle smaller than the outer circle of the pipe (15) is provided on the outer circle of the pipe (15), characterized in that: An annular welding flange (2) consisting of two half-flange units (21) is welded on the outer circle of the connecting pipe (15) on both sides of the bracket position (11), and a circular sleeve-shaped stopper (3) welded from two half-stopper units (31) is provided at the bracket position (11). The welding flange (2) and the stopper (3) are detachably connected.

2. A universal joint shaft intermediate pipe assembly bracket position repair structure according to claim 1, characterized in that: The semi-flange unit (21) includes a semi-circular semi-flange body (211), and the semi-flange body (211) is provided with a plurality of first bolt holes (212); the semi-blocking sleeve unit (31) includes a semi-circular sleeve portion (312) and a semi-flange portion (311) arranged at both ends of the semi-circular sleeve portion (312), and the semi-flange portion (311) is provided with a plurality of second bolt holes (315), and each first bolt hole (212) of the semi-flange body (211) of the welding flange (2) corresponds to each second bolt hole (315) of the semi-blocking sleeve unit (31) of the blocking sleeve (3) in a one-to-one manner and is detachably connected and fixed by bolts (5).

3. A universal joint shaft intermediate pipe assembly bracket position repair structure according to claim 2, characterized in that: A circular steel wire (6) is welded to each of the bolts (5).

4. The universal joint intermediate pipe assembly bracket position repair structure according to claim 2, characterized in that: The first bolt hole (212) and the second bolt hole (315) are both countersunk holes.

5. The structure for repairing the bracket position of the intermediate pipe assembly of a universal joint according to claim 2, characterized in that: The first bolt holes (212) on the two welding flanges (2) are in phase with each other.

6. A universal joint shaft intermediate pipe assembly bracket position repair structure according to any one of claims 2 to 5, characterized in that: The connecting pipe (15) is provided with a first step circle (12) on both sides of the bracket position (11), and a first groove (13) is provided at the edge of the end of the two first step circles (12); the inner arc of the semi-flange body (211) is adapted to the first step circle (12), and a second groove (213) is provided on it at a position corresponding to the first groove (13); the first groove (13) and the second groove (213) are welded to form a second groove weld (8), and a fillet weld (9) is formed between the outer wall of each semi-flange body (211) and the connecting pipe (15); the semi-circular sleeve parts (312) of the two semi-blocking sleeve units (31) are provided with a third groove (314) on the axial edges thereof and a first groove weld (7) is formed by welding.

7. A universal joint intermediate pipe assembly bracket position repair structure according to claim 6, characterized in that: The inner circle of the semi-flange portion (311) is respectively provided with a second arc-shaped groove (313), and the positions corresponding to the second arc-shaped grooves (313) on both sides of the bracket position (11) are respectively provided with a first arc-shaped groove (14), and a sealing ring (4) is commonly provided in each corresponding first arc-shaped groove (14) and second arc-shaped groove (313).

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