Spraying protection device for alloy spherical shaft

Abstract

The utility model discloses an alloy spherical shaft spraying protection device which is characterized in that a sleeve body a is mounted on a shaft body below a spraying surface of an alloy spherical shaft in a matched manner, the upper end of the sleeve body a is a fillet cambered surface, and the fillet cambered surface is positioned at the lower end of the spraying surface of the alloy spherical shaft; the sleeve body b comprises a sleeve ring I and a sleeve ring II, the sleeve ring I is fixed above the sleeve ring II, and the diameter of the sleeve ring I is larger than that of the sleeve ring II; the two sides of the inner wall of the lantern ring II are each provided with a groove body in the vertical direction, and two groove openings of the two groove bodies are opposite. The sleeve body b is mounted on a plate body above the alloy spherical shaft spraying surface, and the two sides of the plate body above the alloy spherical shaft spraying surface are connected into the two corresponding groove bodies in a matched mode respectively; a top plate is arranged at the top of the sleeve body b; the bolt is in threaded connection with a nut; a threaded column body of the bolt penetrates through a center hole of the top plate in a matched mode and is in threaded connection with the center of the top of the alloy spherical shaft. According to the utility model, only the spherical part of the alloy spherical shaft placing bearing is sprayed, and the rest adjacent parts are protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to an alloy spherical shaft spraying protection device and belongs to the mechanical technical field. BACKGROUND

[0002] The alloy spherical shaft is applied to the petroleum drilling industry, and according to needs, only the spherical surface position of the bearing placed alloy spherical shaft is sprayed with tungsten carbide powder to improve the surface hardness and wear resistance of the position; after the spherical surface position of the alloy spherical shaft is sprayed, high-strength bearings are installed in cooperation, and due to the high wear resistance of the sprayed position, the comprehensive performance of the alloy spherical shaft is improved, and the service life is prolonged. However, during the spraying of the position, the adjacent positions are inevitably sprayed, which not only causes waste but also changes the performance of the adjacent positions. SUMMARY

[0003] In order to overcome the defects of the prior art, the utility model provides an alloy spherical shaft spraying protection device, which can ensure that only the spherical surface position of the bearing placed alloy spherical shaft is sprayed, and the remaining adjacent positions are protected.

[0004] The utility model discloses a kind of alloy spherical shaft spraying protection devices, including sleeve a, sleeve b, top plate, bolt and nut, the sleeve a and sleeve b are all round ring sleeve structure workpieces, sleeve a is cooperatively installed in the lower shaft body of alloy spherical shaft spraying surface, sleeve b is cooperatively installed in the upper plate body of alloy spherical shaft spraying surface;Sleeve b top is provided with a top plate, bolt is connected with nut on screw thread;The threaded column of bolt cooperates with the center hole of top plate and is threadedly connected with the top center of alloy spherical shaft, and the nut on bolt locks top plate.

[0005] Further, sleeve b includes sleeve ring I and sleeve ring II, sleeve ring I is fixed above sleeve ring II, and the diameter of sleeve ring I is greater than the diameter of sleeve ring II.

[0006] Further, two grooves are provided on the inner wall of sleeve ring II, and the two groove openings of the two grooves are opposite.

[0007] Further, the upper end of sleeve a is a rounded surface, and the rounded surface is located at the lower end of the alloy spherical shaft spraying surface.

[0008] The utility model has the advantages that the utility model can spray the bearing installation position of alloy spherical shaft without spraying the adjacent position, which saves spraying powder, improves production efficiency and avoids changes in the performance of the adjacent position. BRIEF DESCRIPTION OF DRAWINGS

[0009] The utility model is further described below in combination with the drawings and specific embodiments.

[0010] Figure 1 is the structural schematic view of the utility model.

[0011] Figure 2 is the schematic view of the sleeve body a of the utility model.

[0012] Figure 3 is the schematic view of the top plate of the utility model.

[0013] Figure 4 is the schematic view of the sleeve body b of the utility model.

[0014] Figure 5 is Figure 4 the plan view.

[0015] Figure 6 is the schematic view of alloy spherical shaft 5.

[0016] Mark in the drawing:

[0017] 1, sleeve body a, 2, sleeve body b, 201, sleeve ring I, 202, sleeve ring II, 203, groove body, 3, top plate, 4, bolt, 5, alloy spherical shaft, 501, spraying surface, 502, shaft body, 503, plate body, 6, nut. Specific implementation

[0018] As Figure 1 -6 shows, a kind of alloy spherical shaft spraying protection device, including sleeve body a 1, sleeve body b 2, top plate 3, bolt 4 and nut 6, the sleeve body a 1 and sleeve body b 2 are both the workpiece of circular ring sleeve structure, sleeve body a 1 is cooperatively installed in the lower shaft body 502 of vertical direction alloy spherical shaft 5 spraying surface 501, the upper end of sleeve body a 1 is rounded arc surface, rounded arc surface is located in the lower end of alloy spherical shaft 5 spraying surface 501;Sleeve body b 2 includes sleeve ring I 201 and sleeve ring II 202, sleeve ring I 201 is fixed in the upper of sleeve ring II 202, the diameter of sleeve ring I 201 is greater than the diameter of sleeve ring II 202;Two grooves 203 of vertical direction are respectively arranged in the inner wall of sleeve ring II 202, two slots of two grooves 203 are opposite;Sleeve body b 2 is installed in the upper plate body 503 of alloy spherical shaft 5 spraying surface 501, the upper plate body 503 of alloy spherical shaft 5 spraying surface 501 is respectively cooperatively connected in the corresponding two grooves 203 of two sides;Sleeve body b 2 top is provided with a top plate 3, and the nut 6 is connected on the thread of bolt 4;The threaded column of bolt 4 cooperatively passes through the center hole of top plate 3 and is connected with the top center thread of alloy spherical shaft 5, and the nut 6 on bolt 4 locks top plate 3.

[0019] In use, the upper end of the sleeve body a1 is rounded and faces upward, the sleeve body a1 passes through the lower shaft body 502 of the alloy spherical shaft 5 from bottom to top and is connected therewith, the sleeve body a1 can effectively protect the upper half of the shaft body 502 adjacent to the spraying surface 501 from being sprayed; the sleeve body b2 passes through the groove 203 in the sleeve ring II 202 from top to bottom and is connected with the upper plate body 503 of the spraying surface 501 of the alloy spherical shaft 5, the top plate 3 covers the top of the alloy spherical shaft 5 and is locked by the bolt 4 and the nut 6, the sleeve body b2 and the top plate 3 cover the upper plate body 503 of the spraying surface 501 of the alloy spherical shaft 5, which can effectively protect the plate body 503 from being sprayed.

Claims

1. An alloyed spherical journal spray protection device characterized by: It includes sleeve body a (1), sleeve body b (2), top plate (3), bolt (4) and nut (6), the sleeve body a (1) and sleeve body b (2) are all circular ring sleeve structure workpieces, the sleeve body a (1) is installed on the lower shaft body (502) of alloy spherical shaft (5) spraying surface (501) in cooperation, the sleeve body b (2) is installed on the upper plate body (503) of alloy spherical shaft (5) spraying surface (501) in cooperation, the sleeve body b (2) top is provided with a top plate (3), the bolt (4) is connected with the nut (6) on the thread, the threaded column of bolt (4) is connected with the top center thread of alloy spherical shaft (5) in cooperation through the center hole of top plate (3), and the nut (6) on bolt (4) locks top plate (3).

2. An alloyed spherically faced shaft spray protection device according to claim 1, characterized in that: The sleeve body b (2) includes sleeve ring I (201) and sleeve ring II (202), the sleeve ring I (201) is fixed above the sleeve ring II (202), and the diameter of the sleeve ring I (201) is greater than that of the sleeve ring II (202).

3. An alloyed spherically faced shaft spray protection device according to claim 2, characterized in that: Two vertical grooves (203) are arranged on the inner wall of the sleeve ring II (202), and the two grooves (203) are opposite to each other.

4. An alloyed spherically faced shaft spray protection device according to claim 1, characterized in that: The upper end of the sleeve body a (1) is a rounded arc surface, and the rounded arc surface is located below the spraying surface (501) of the alloy spherical shaft (5).

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