Nitric acid high-voltage motor and unit connecting device

Abstract

A connecting device for a nitric acid high-voltage motor and a unit belongs to the field of nitric acid production and comprises a main shaft, first flange plates arranged at two ends of the main shaft, rotating shaft fixers arranged at two ends of the main shaft respectively, second flange plates arranged at one ends, facing the main shaft, of the rotating shaft fixers, and damping plates arranged between the first flange plates and the second flange plates. The first flange plate, the damping plate and the second flange plate can be fixedly connected, a cavity is formed in the spindle, a rotating shaft inserting groove is formed in the end, away from the spindle, of the rotating shaft fixator, the top and the bottom of the rotating shaft fixator are each provided with a fixing screw hole, an annular cavity is formed in the rotating shaft fixator, and the cavity and the annular cavity are filled with high-strength resin materials. According to the utility model, the cavity and the annular cavity are arranged in the coupler made of the steel alloy material and are filled with the resin material with high strength and lower density, so that the working strength of the coupler can be ensured while the weight is reduced, and the normal use of the coupler can be ensured while the vibration of a high-voltage motor is reduced after the weight of the coupler is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of nitric acid production, in particular to a nitric acid high-voltage motor and unit connection device. Background Art

[0002] At present, nitric acid production generally uses a four-in-one unit, but the driving device of the four-in-one unit is a steam turbine. However, when the steam turbine is used, related steam production equipment is required, which leads to high equipment and operating costs, and the operating conditions of the steam turbine are also high. Therefore, high-voltage motors have been used to replace steam turbines as driving devices to reduce equipment and operating costs while improving operational stability. However, when the high-voltage motor is used, as the speed increases, it is easy to cause vibration exceeding a predetermined value, resulting in jumping and causing production interruption, thereby affecting production. At present, after research, it has been found that this is related to the weight of the coupling, so the coupling needs to be improved to reduce the vibration of the high-voltage motor. Utility Model Content

[0003] The utility model provides a nitric acid high-voltage motor and unit connection device, which is used to solve the defects in the prior art.

[0004] The utility model is achieved through the following technical solutions:

[0005] A nitric acid high-voltage motor and unit connection device includes a main shaft, a first flange is provided at both ends of the main shaft, a rotating shaft fixer is provided at each end of the main shaft, a second flange is provided at one end of the rotating shaft fixer facing the main shaft, a shock-absorbing plate is provided between the first flange and the second flange, the first flange, the shock-absorbing plate and the second flange can be fixedly connected, a cavity is provided inside the main shaft, a rotating shaft slot is provided at the end of the rotating shaft fixer away from the main shaft, a fixing screw hole is provided at the top and bottom of the rotating shaft fixer, an annular cavity is provided inside the rotating shaft fixer, and the cavity and the annular cavity are filled with high-strength resin material.

[0006] In the above-mentioned nitric acid high-voltage motor and unit connection device, the shaft slot is in the shape of a truncated cone.

[0007] As described above, a nitric acid high-voltage motor and unit connection device is provided with several first through holes on the first flange, second through holes are provided at positions corresponding to the first through holes on the second flange, and third through holes are provided at positions corresponding to the first through holes on the shock-absorbing plate. The first through hole, the third through hole and the second through hole can be passed through by a screw, and the screw can be threadedly connected to a nut and fixedly connected to the first flange, the shock-absorbing plate and the second flange.

[0008] In the above-mentioned nitric acid high-pressure motor and unit connection device, the slot of the screw cap of the screw is an internal hexagonal groove structure.

[0009] The advantages of the present invention are: by arranging a cavity and an annular cavity in a coupling made of steel alloy and filling it with a high-strength and low-density resin material, the present invention can ensure the working strength of the coupling while reducing the weight, thereby ensuring that the coupling can reduce the vibration of the high-voltage motor after weight reduction while ensuring the normal use of the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 yes Figure 1 Sectional view along line AA;

[0013] Figure 3 yes Figure 2 An enlarged view of the B direction.

[0014] Figure numerals: 1. main shaft; 2. first flange; 3. shaft holder; 4. second flange; 5. shock-absorbing plate; 6. cavity; 7. shaft slot; 8. fixing screw hole; 9. annular cavity; 10. resin material; 11. first through hole; 12. second through hole; 13. third through hole; 14. screw; 15. nut. DETAILED DESCRIPTION

[0015] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] A nitric acid high-voltage motor and unit connection device includes a main shaft 1, a first flange 2 is provided at both ends of the main shaft 1, a rotating shaft fixer 3 is respectively provided at both ends of the main shaft 1, a second flange 4 is provided at one end of the rotating shaft fixer 3 facing the main shaft 1, a shock-absorbing plate 5 is provided between the first flange 2 and the second flange 4, the first flange 2, the shock-absorbing plate 5 and the second flange 4 can be fixedly connected, a cavity 6 is provided inside the main shaft 1, a rotating shaft slot 7 is provided at one end of the rotating shaft fixer 3 away from the main shaft 1, a fixing screw hole 8 is respectively provided at the top and bottom of the rotating shaft fixer 3, and the rotating shaft and the rotating shaft fixer 3 can be stably connected together by cooperating with the fixing screw hole 8 and the fixing bolt, an annular cavity 9 is provided in the rotating shaft fixer 3, and the cavity 6 and the annular cavity 9 are filled with a high-strength resin material 10, preferably a high-molecular-weight solid epoxy resin.

[0017] Specifically, the shaft slot 7 of this embodiment is in the shape of a truncated cone. Since the shaft head of the shaft is changed into a truncated cone for vibration reduction, the truncated cone-shaped shaft slot 7 can better cooperate with it.

[0018] Specifically, several first through holes 11 are provided on the first flange 2 described in this embodiment, second through holes 12 are provided at positions corresponding to the second flange 4 and the first through holes 11, and third through holes 13 are provided at positions corresponding to the first through holes 11 of the shock-absorbing plate 5. The first through holes 11, the third through holes 13 and the second through holes 1 can be passed through by the screw 14, and the screw 14 can be threadedly connected to the nut 15 and fixedly connected the first flange 2, the shock-absorbing plate 5 and the second flange 4.

[0019] Furthermore, the slot of the screw cap of the screw rod 14 in this embodiment is a hexagonal groove structure. The hexagonal screw rod 14 can prevent slipping during the tightening process, thereby ensuring the tightening effect.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A nitric acid high-voltage motor and unit connection device, characterized by: The invention comprises a main shaft (1), wherein first flanges (2) are provided at both ends of the main shaft (1), a rotating shaft holder (3) is provided at both ends of the main shaft (1), a second flange (4) is provided at one end of the rotating shaft holder (3) facing the main shaft (1), a shock-absorbing plate (5) is provided between the first flange (2) and the second flange (4), and the first flange (2), the shock-absorbing plate (5) and the second flange (4) can be fixedly connected, a cavity (6) is provided inside the main shaft (1), a rotating shaft slot (7) is provided at one end of the rotating shaft holder (3) away from the main shaft (1), a fixing screw hole (8) is provided at the top and the bottom of the rotating shaft holder (3), an annular cavity (9) is provided inside the rotating shaft holder (3), and the cavity (6) and the annular cavity (9) are filled with a high-strength resin material (10).

2. The nitric acid high-voltage motor and unit connection device according to claim 1, characterized in that: The rotating shaft slot (7) is in the shape of a truncated cone.

3. The nitric acid high-voltage motor and unit connection device according to claim 1, characterized in that: The first flange (2) is provided with a plurality of first through holes (11), the second flange (4) is provided with a second through hole (12) at a position corresponding to the first through hole (11), the shock-absorbing plate (5) is provided with a third through hole (13) at a position corresponding to the first through hole (11), the first through hole (11), the third through hole (13) and the second through hole (12) can be passed through by a screw (14), and the screw (14) can be threadedly connected to a nut (15) and fixedly connected to the first flange (2), the shock-absorbing plate (5) and the second flange (4).

4. The nitric acid high-voltage motor and unit connection device according to claim 3, characterized in that: The clamping groove of the screw cap of the screw (14) is an inner hexagonal groove structure.

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