Screw rotor shaft bumper protective sleeve

Abstract

The utility model belongs to the technical field of screw rotors, and particularly relates to a screw rotor shaft retainer protective sleeve which comprises a screw rotor, two sliding groove shells are sleeved outside the screw rotor, a sliding shell is connected inside each sliding groove shell in a sliding mode, the inner wall of each sliding shell is fixedly connected with a closed gas ring, and the closed gas ring is fixedly connected with the screw rotor. The outer surface of each closed gas ring makes contact with the outer surface of the screw rotor, the inner wall of each sliding groove shell and the inner wall of the sliding shell are each in threaded connection with two threaded rods, the ends, close to each other, of each set of threaded rods are each fixedly connected with a push block, and the sliding groove shells are arranged so that the sliding shell can slide in the sliding groove shells; therefore, the overall length of the sliding groove shell and the sliding shell can be adjusted according to the length of the screw rotor shaft retainer, then the push block can be driven to make contact with the screw rotor shaft retainer on the sliding shell and the sliding groove shell through forward and reverse rotation of the threaded rod and the threads, and then the sliding groove shell and the sliding shell can be fixed to the screw rotor.

Description

TECHNICAL FIELD

[0001] The utility model belongs to screw rotor technical field, concretely relates to a screw rotor axle fender protection sleeve. BACKGROUND

[0002] In the screw compressor, screw rotor as its important component, it needs to spray the surface wear -resisting anticorrosive material or sand blasting after the series process such as cutting and polishing, so as to have better performance, and the screw rotor needs to protect the axle fender of the both ends of the rotor when spraying or sand blasting, to prevent damage in the processing process;

[0003] But the traditional screw rotor axle fender protection sleeve is often designed for the rotor of specific size, and one protection sleeve can only be applied to one or a few similar specifications of rotor, when the screw rotor produced by different suppliers or different batches is sprayed or sand blasted at the same time, the traditional protection sleeve cannot ensure that it can provide effective protection for the axle fender of various screw rotors in these complex situations, so that different sizes and lengths of protection sleeves need to be used when spraying or sand blasting, and then it is more troublesome when processing, and it is not convenient when using the protection sleeve;

[0004] To solve the above problems, a screw rotor axle fender protection sleeve is provided in the present application. INVENTION CONTENTS

[0005] To solve the above problems in the prior art, the utility model provides a screw rotor axle fender protection sleeve, which has the characteristics of being able to protect the axle fender of various specifications of screw rotors.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a screw rotor axle fender protection sleeve, comprising a screw rotor, the screw rotor is externally sleeved with two sliding groove shells, the inside of each sliding groove shell is slidably connected with a sliding shell, the inner wall of each sliding shell is fixedly connected with a closed air ring, the outer surface of each closed air ring is in contact with the outer surface of the screw rotor, the inner wall of each sliding groove shell and the inner wall of the sliding shell are threadedly connected with two threaded rods, the end of each group of threaded rods close to each other is fixedly connected with a push block, and the side surface of each group of push blocks close to each other is in contact with the outer surface of the screw rotor.

[0007] As a preferred technical scheme of the utility model, the inside of one of the sliding groove shells is provided with a connecting shell, the inner wall of one of the sliding groove shells and the outer surface of the connecting shell are both provided with screw threads, and the inner wall of one of the sliding groove shells and the outer surface of the connecting shell are threadedly connected through the screw threads.

[0008] As a preferred technical scheme of the utility model, the front surface of the connecting shell is provided with a hook, one end of the hook close to the connecting shell is fixedly connected with a rotating sleeve ring, and the back surface of the outer ring of the rotating sleeve ring is fixedly connected with the front surface of the connecting shell.

[0009] As a preferred technical scheme of the utility model, the outer surface of each screw rod is fixedly connected with an extension fixing ring, and the side face of each group of extension fixing rings close to each other is fixedly connected with the outer surface of the sliding groove shell and the sliding shell.

[0010] As a preferred technical scheme of the utility model, the outer surface of each screw rod is fixedly connected with an extension fixing ring, and the side face of each group of extension fixing rings close to each other is fixedly connected with the outer surface of the sliding groove shell and the sliding shell.

[0011] As a preferred technical scheme of the utility model, the side face of each group of push blocks close to each other is fixedly connected with a protective pad, and the side face of each group of protective pads close to each other is in contact with the outer surface of the screw rotor.

[0012] As a preferred technical scheme of the utility model, the outer surface of each closed air ring is fixedly connected with an air inlet pipe, and the inner part of each air inlet pipe is clamped with a protective cover.

[0013] Compared with the prior art, the utility model has the beneficial effects that: through the setting of the sliding groove shell cooperating with the sliding shell, the screw rotor shaft can be protected, and through the sliding of the sliding shell in the sliding groove shell, the overall length of the sliding groove shell and the sliding shell can be adjusted according to the length of the screw rotor shaft, then through the forward and reverse rotation of the screw rod and the screw, the push block and the screw rotor shaft can be driven to contact on the sliding shell and the sliding groove shell, through the contact limiting of the push block, the sliding groove shell and the sliding shell can be fixed on the screw rotor shaft, and then the sliding groove shell cooperating with the sliding shell can stably protect the screw rotor shafts of different specifications, and through the inflation of the closed air ring, the opening of the sliding shell can be closed according to the size of the different screw rotor shafts, and further, the screw rotor shafts of multiple specifications can be closed and protected. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings:

[0015] Figure 1 It is the structural schematic view of the utility model whole;

[0016] Figure 2 It is the structural schematic view of the sliding groove shell in the utility model;

[0017] Figure 3 It is the structural schematic view of the sliding shell in the utility model;

[0018] Figure 4 It is the structural schematic view of the threaded rod in the utility model;

[0019] Figure 5 It is the structural schematic view of the closed air ring in the utility model;

[0020] In the drawing: 1, screw rotor; 2, sliding groove shell; 3, sliding shell; 4, hook; 5, closed air ring; 6, threaded rod; 7, connecting shell; 8, rotating sleeve ring; 9, screw thread; 10, screwing ring; 11, anti-skid mouth; 12, extension fixing ring; 13, push block; 14, protective pad; 15, protective cover; 16, air inlet pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] EMBODIMENT

[0023] Please refer to Figures 1-5 The utility model provides the following technical scheme: a screw rotor shaft protection sleeve, including screw rotor 1, the outside of screw rotor 1 is equipped with two sliding groove shells 2, the inside of each sliding groove shell 2 is slidably connected with sliding shell 3, the inner wall of each sliding shell 3 is fixedly connected with closed air ring 5, the outer surface of each closed air ring 5 is in contact with the outer surface of screw rotor 1, the inner wall of each sliding groove shell 2 and the inner wall of sliding shell 3 are screw-connected with two threaded rods 6, the end of each group of threaded rods 6 close to each other is fixedly connected with push block 13, the side of each group of push blocks 13 close to each other is in contact with the outer surface of screw rotor 1, the hole in the inner wall of sliding groove shell 2 and sliding shell 3 in the embodiment can be screw-connected with threaded rod 6, so that threaded rod 6 can move when screwing.

[0024] Specifically, the inside of one of sliding groove shells 2 is provided with connecting shell 7, the inner wall of one of sliding groove shells 2 and the outer surface of connecting shell 7 are provided with screw thread 9, and the inner wall of one of sliding groove shells 2 and the outer surface of connecting shell 7 are screw-connected through screw thread 9. In the embodiment, connecting shell 7 and sliding groove shell 2 are screw-connected through the provision of screw thread 9, so that connecting shell 7 can be connected during use or removed when not in use.

[0025] Specific, the front of the connecting shell 7 is provided with a hook 4, the hook 4 is fixedly connected with a rotating sleeve ring 8 near one end of the connecting shell 7, the back surface of the outer circle of the rotating sleeve ring 8 is fixedly connected with the front surface of the connecting shell 7, in the embodiment, by setting the hook 4, the connecting shell 7 can be conveniently hung in the corresponding position for use, and the rotating sleeve ring 8 can rotate the hook 4, thereby facilitating the use of the hook 4.

[0026] Specifically, each group of threaded rods 6 is fixedly connected with a twisting ring 10 at the end away from each other, and the outer surface of each twisting ring 10 is provided with anti-skid openings 11 arranged at equal distances. In the embodiment, the threaded rods 6 can be conveniently rotated by setting the twisting ring 10, and the anti-skid property of the twisting ring 10 can be improved by using the anti-skid openings 11.

[0027] Specifically, the outer surface of each threaded rod 6 is threadedly connected with an extension fixing ring 12, and the side surface of each group of extension fixing rings 12 away from each other is fixedly connected with the outer surface of the sliding groove shell 2 and the sliding shell 3. In the embodiment, the threaded connection of the threaded rod 6 with the sliding groove shell 2 and the sliding shell 3 can be extended by setting the extension fixing ring 12, so that the threaded rod 6 can be stably used.

[0028] Specifically, each group of push blocks 13 is fixedly connected with a protective pad 14 on the side surface close to each other, and the side surface close to each other of each group of protective pads 14 is in contact with the outer surface of the screw rotor 1. In the embodiment, the screw rotor 1 and the push block 13 can be protected by the rubber material of the protective pad 14.

[0029] Specifically, the outer surface of each closed air ring 5 is fixedly connected with an air inlet pipe 16, and the inner part of each air inlet pipe 16 is clamped with a protective cover 15. In the embodiment, the air inlet pipe 16 can be protected by setting the air inlet pipe 16, so that the gas can enter or discharge to the inside and outside of the closed air ring 5, and the protective cover 15 can be used to protect the air inlet pipe 16.

[0030] The working principle and use process of the utility model are as follows: in use, first, the sliding groove shell 2 and the sliding shell 3 are sleeved on the shaft of the screw rotor 1, at the same time, according to the length of the shaft of the screw rotor 1, the sliding shell 3 is telescopic in the sliding groove shell 2, and the length of the sliding shell 3 and the sliding groove shell 2 is adjusted, then the threaded rod 6 is rotated by the twist ring 10 cooperating with the anti-skid port 11, the threaded rod 6 is moved in the sliding shell 3, the sliding groove shell 2 and the extension fixing ring 12 by the thread, the push block 13 and the protection pad 14 are moved to the screw rotor 1 by the moving position of the threaded rod 6, when the push block 13 and the protection pad 14 contact with the screw rotor 1, the threaded rod 6 is continuously rotated, the push block 13 and the protection pad 14 are fixed on the screw rotor 1 by the threaded rod 6, when the sliding groove shell 2 and the sliding shell 3 fix the shaft of the screw rotor 1, the protection cover 15 is taken off from the air inlet pipe 16, at the same time, air is transferred to the closed air ring 5 by the air inlet pipe 16 and the inflation equipment, when the closed air ring 5 is inflated and contacts with the screw rotor 1 and the sliding shell 3, the protection cover 15 is fixed in the air inlet pipe 16 again, so that the opening of the sliding shell 3 and the screw rotor 1 are closed by the closed air ring 5, then the connecting shell 7 is fixed on the sliding groove shell 2 by the screw tooth 9, the hook 4 is rotated by the rotating sleeve ring 8, the hook 4 drives the connecting shell 7, the sliding groove shell 2, the sliding shell 3 and the screw rotor 1 to hang in the appropriate position, then the screw rotor 1 is sprayed or sand blasted, different specifications of the screw rotor 1 can be further protected.

[0031] Finally, it should be pointed out that: the above only for preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing embodiments, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A screw rotor shaft protection sleeve characterized by: The utility model relates to a screw rotor (1) is provided with two sliding groove shells (2) outside, the inside of each sliding groove shell (2) is slidably connected with sliding shell (3), the inner wall of each sliding shell (3) is fixedly connected with closed gas ring (5), the outer surface of each closed gas ring (5) is in contact with the outer surface of screw rotor (1), the inner wall of each sliding groove shell (2) and the inner wall of sliding shell (3) are threadedly connected with two threaded rods (6), the end of each group threaded rod (6) is fixedly connected with push block (13) and approaches each other, the side of each group push block (13) is in contact with the outer surface of screw rotor (1) and approaches each other.

2. A shaft sleeve as claimed in claim 1, characterised in that: The inside of one of the sliding groove shells (2) is provided with a connecting shell (7), the inner wall of one of the sliding groove shells (2) and the outer surface of the connecting shell (7) are provided with screw threads (9), and the inner wall of one of the sliding groove shells (2) and the outer surface of the connecting shell (7) are threadedly connected through the screw threads (9).

3. A shaft sleeve as claimed in claim 2, characterised in that: The front surface of the connecting shell (7) is provided with a hook (4), the end of the hook (4) close to the connecting shell (7) is fixedly connected with a rotating sleeve ring (8), and the back surface of the outer ring of the rotating sleeve ring (8) is fixedly connected with the front surface of the connecting shell (7).

4. A protective sleeve for a screw rotor shaft according to claim 1, characterized in that: The end of each group of threaded rods (6) away from each other is fixedly connected with a twisting ring (10), and the outer surface of each twisting ring (10) is provided with anti-skid openings (11) arranged at equal distances.

5. A protective sleeve for a screw rotor shaft according to claim 1, characterized in that: The outer surface of each threaded rod (6) is threadedly connected with an extension fixing ring (12), and the side of each group of extension fixing rings (12) close to each other is fixedly connected with the outer surface of the sliding groove shell (2) and the sliding shell (3) respectively.

6. A protective sleeve for a screw rotor shaft according to claim 1, characterized in that: The side of each group of push blocks (13) close to each other is fixedly connected with a protective pad (14), and the side of each group of protective pads (14) close to each other is in contact with the outer surface of the screw rotor (1).

7. A protective sleeve for a screw rotor shaft according to claim 1, characterized in that: The outer surface of each closed gas ring (5) is fixedly connected with an air inlet pipe (16), and the inside of each air inlet pipe (16) is clamped with a protective cover (15).

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