Motor shaft extension end sealing structure

Abstract

The utility model discloses a motor shaft extension end sealing structure which comprises a motor body, the right side of the motor body is fixedly connected with an extension crankshaft, the left side of the surface of the extension crankshaft is sleeved with a first sealing shell, and the right side of the surface of the extension crankshaft is sleeved with a second sealing shell. The left side of the surface of the second sealing shell is in threaded connection with a sealing ring. The contact position of the first sealing shell and the second sealing shell is sealed through the sealing ring to form a sealing structure, pressurization is conducted in the sealing structure through work of the booster pump, pressure is detected through the pressure gauge, when the numerical value of the pressure gauge changes, it is indicated that the sealing performance becomes poor, the sealing structure is overhauled in time, and the sealing ring is replaced; and impact force generated by falling of a heavy object can compress a spring through a protection plate, a connecting rod and a movable plate, and the impact force can be counteracted through cooperation of the spring and a damper, so that the whole sealing structure is protected, and use by people is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric motors, in particular to a sealing structure for a shaft extension end of an electric motor. Background Art

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil to generate a rotating magnetic field and acts on the rotor to form a magneto-electrodynamic rotational torque. During use, a sealing structure needs to be set at the extended end of the motor shaft to provide it with sealing protection.

[0003] In actual use, the existing sealing structure does not have a detection function, so when the sealing performance of the sealing structure deteriorates, it cannot be discovered and repaired in time. In addition, since the sealing structure does not have a buffer protection mechanism, it is easy to be damaged when a heavy object falls and hits the motor shaft extension end, which brings inconvenience to people's use. Therefore, a motor shaft extension end sealing structure is introduced in a targeted manner. Utility Model Content

[0004] The utility model aims to provide a sealing structure for the shaft extension end of a motor, which has the advantages of sealing detection and buffer protection, and solves the problem that the existing sealing structure has no detection function during actual use, resulting in the inability to timely discover and repair the deterioration of the sealing performance of the sealing structure, and because the sealing structure has no buffer protection mechanism, when a heavy object falls and hits the shaft extension end of the motor, it is easy to cause it to be damaged, causing inconvenience to people's use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor shaft extension end sealing structure, comprising a motor body, a protruding machine shaft is fixedly connected to the right side of the motor body, a first sealing shell is sleeved on the left side of the surface of the protruding machine shaft, a second sealing shell is sleeved on the right side of the surface of the protruding machine shaft, a sealing ring is threadedly connected to the left side of the surface of the second sealing shell, the top and bottom of the first sealing shell and the second sealing shell are fixedly connected to the bracket by a first bolt, the top and bottom of the protruding machine shaft are provided with a shell, a movable plate is provided on the side away from the protruding machine shaft between the two sides of the shell inner cavity, a spring is fixedly connected between the movable plate and the inner cavity of the shell, a damper is fixedly connected to the side of the shell inner cavity close to the protruding machine shaft, both sides of the movable plate away from the side of the protruding machine shaft are fixedly connected to connecting rods, and the side of the connecting rod away from the side of the protruding machine shaft is fixedly connected to a protective plate, a pressure gauge is fixedly connected to the left side of the top of the first sealing shell, a booster pump is connected to the left side of the bottom of the first sealing shell, a mounting seat is fixedly connected to the bottom of the motor body, and a base is provided at the bottom of the mounting seat.

[0006] Preferably, mounting plates are fixedly connected to both sides of the front and back sides of the mounting seat, and the mounting plates are fixedly connected to the base via second bolts.

[0007] Preferably, both sides of the movable plate are fixedly connected with sliders, and both sides of the inner cavity of the shell are provided with sliding grooves adapted to the sliders.

[0008] Preferably, a connecting flange is sleeved on the right side of the surface of the extended shaft, and connecting holes are opened around the right side of the connecting flange.

[0009] Preferably, the spring is sleeved on the surface of the damper, and the bracket is fixedly connected to the shell.

[0010] Preferably, buffer blocks are fixedly connected to both sides of the inner cavity of the shell away from the extended machine shaft, the buffer blocks are in contact with the movable plate, and a dust filter is fixedly connected to the bottom of the booster pump.

[0011] Preferably, a non-slip pad is provided on the surface of the sealing ring, and mounting holes are provided on both sides of the top of the base.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model seals the contact position between the first sealing shell and the second sealing shell through the sealing ring to form a sealing structure. The booster pump increases the pressure in the sealing structure. The pressure is detected by the pressure gauge. When the value of the pressure gauge changes, it indicates that the sealing performance has deteriorated. The sealing structure can be promptly inspected and repaired, and the sealing ring can be replaced. The impact force generated by the falling of heavy objects will compress the spring through the protective plate, the connecting rod and the movable plate. The impact force can be offset by the cooperation of the spring and the damper to protect the entire sealing structure, which is convenient for people to use.

[0014] 2. The utility model can limit the movable plate by setting a slider and a slide groove, can facilitate the connection between the extended machine shaft and the equipment by setting a connecting flange and a connecting hole, can prevent the protective plate from shaking when the extended machine shaft rotates by setting a buffer block, and can facilitate the user to rotate the sealing ring by setting an anti-slip pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the first stereogram of the structure of the utility model;

[0016] Figure 2 This is the second stereoscopic view of the structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the utility model;

[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged cross-section of the local structure.

[0019] In the figure: 1. Motor body; 2. Extended machine shaft; 3. First sealing shell; 4. Second sealing shell; 5. Sealing ring; 6. Bracket; 7. Shell; 8. Movable plate; 9. Spring; 10. Damper; 11. Connecting rod; 12. Protective plate; 13. Pressure gauge; 14. Booster pump; 15. Mounting seat; 16. Base; 17. Mounting plate; 18. Connecting flange; 19. Connecting hole; 20. Buffer block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4A motor shaft extension end sealing structure comprises a motor body 1, a protruding shaft 2 is fixedly connected to the right side of the motor body 1, a connecting flange 18 is sleeved on the right side of the surface of the protruding shaft 2, and connecting holes 19 are opened around the right side of the connecting flange 18. By providing the connecting flange 18 and the connecting hole 19, the protruding shaft 2 can be easily connected to the equipment, a first sealing shell 3 is sleeved on the left side of the surface of the protruding shaft 2, a second sealing shell 4 is sleeved on the right side of the surface of the protruding shaft 2, and a sealing ring 5 is threadedly connected to the left side of the surface of the second sealing shell 4. The top and bottom of the first sealing shell 3 and the second sealing shell 4 are fixedly connected to a bracket 6 by a first bolt, and the top and bottom of the protruding shaft 2 are provided with A shell 7 is arranged, and a movable plate 8 is arranged on the side away from the extended machine shaft 2 between the two sides of the inner cavity of the shell 7, and sliders are fixedly connected on both sides of the movable plate 8. Sliders are opened on both sides of the inner cavity of the shell 7 to match the sliders. By setting the sliders and the slides, the movable plate 8 can be limited. A spring 9 is fixedly connected between the movable plate 8 and the inner cavity of the shell 7, and a damper 10 is fixedly connected to the side of the inner cavity of the shell 7 close to the extended machine shaft 2. The spring 9 is sleeved on the surface of the damper 10, and the bracket 6 is fixedly connected to the shell 7. Connecting rods 11 are fixedly connected on both sides of the movable plate 8 away from the extended machine shaft 2, and a protective plate 12 is fixedly connected to the connecting rod 11 away from the side of the extended machine shaft 2. The top of the first sealing shell 3 A pressure gauge 13 is fixedly connected to the left side of the body, a booster pump 14 is connected to the left side of the bottom of the first sealing shell 3, a buffer block 20 is fixedly connected to the side of the inner cavity of the shell 7 away from the extended machine shaft 2, the buffer block 20 is in contact with the movable plate 8, a dust filter is fixedly connected to the bottom of the booster pump 14, and the buffer block 20 can prevent the protective plate 12 from shaking when the extended machine shaft 2 rotates. A mounting seat 15 is fixedly connected to the bottom of the motor body 1, a base 16 is provided at the bottom of the mounting seat 15, and mounting plates 17 are fixedly connected to both sides of the front and back of the mounting seat 15, and the mounting plate 17 is fixedly connected to the base 16 by a second bolt. The surface of the sealing ring 5 is provided with an anti-slip pad, and the bottom Mounting holes are provided on both sides of the top of the seat 16. By arranging anti-slip pads, it is convenient for users to rotate the sealing ring 5, and the contact position between the first sealing shell 3 and the second sealing shell 4 is sealed by the sealing ring 5 to form a sealing structure. The booster pump 14 is used to increase the pressure in the sealing structure, and the pressure is detected by the pressure gauge 13. When the value of the pressure gauge 13 changes, it means that the sealing performance has deteriorated. The sealing structure can be repaired in time and the sealing ring 5 can be replaced. The impact force generated by the drop of heavy objects will compress the spring 9 through the protective plate 12, the connecting rod 11 and the movable plate 8. The impact force can be offset by the cooperation of the spring 9 and the damper 10 to protect the entire sealing structure, which is convenient for people to use.

[0022] When in use, the contact position between the first sealing shell 3 and the second sealing shell 4 is sealed by the sealing ring 5 to form a sealing structure. The booster pump 14 is used to increase the pressure in the sealing structure. The pressure is detected by the pressure gauge 13. When the value of the pressure gauge 13 changes, it indicates that the sealing performance has deteriorated. The sealing structure can be promptly inspected and repaired, and the sealing ring 5 can be replaced. The impact force generated by the falling of heavy objects will compress the spring 9 through the protective plate 12, the connecting rod 11 and the movable plate 8. The impact force can be offset by the cooperation of the spring 9 and the damper 10 to protect the entire sealing structure, making it convenient for people to use.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor shaft extension end sealing structure, comprising a motor body (1), characterized in that: The right side of the motor body (1) is fixedly connected to an extended shaft (2); the left side of the surface of the extended shaft (2) is sleeved with a first sealing shell (3); the right side of the surface of the extended shaft (2) is sleeved with a second sealing shell (4); the left side of the surface of the second sealing shell (4) is threadedly connected with a sealing ring (5); the top and bottom of the first sealing shell (3) and the second sealing shell (4) are fixedly connected to a bracket (6) by a first bolt; the top and bottom of the extended shaft (2) are provided with a shell (7); a movable plate (8) is provided between the two sides of the inner cavity of the shell (7) on the side away from the extended shaft (2); the movable plate (8) and the shell (7) are connected to the shell (7). A spring (9) is fixedly connected between the inner cavities of the housing (7), a damper (10) is fixedly connected to the side of the inner cavity of the housing (7) close to the extended shaft (2), connecting rods (11) are fixedly connected to both sides of the movable plate (8) away from the extended shaft (2), a protective plate (12) is fixedly connected to the side of the connecting rod (11) away from the extended shaft (2), a pressure gauge (13) is fixedly connected to the left side of the top of the first sealing shell (3), a booster pump (14) is connected to the left side of the bottom of the first sealing shell (3), a mounting seat (15) is fixedly connected to the bottom of the motor body (1), and a base (16) is provided at the bottom of the mounting seat (15).

2. The motor shaft extension end sealing structure according to claim 1, characterized in that: Both sides of the front and back of the mounting seat (15) are fixedly connected with mounting plates (17), and the mounting plates (17) are fixedly connected to the base (16) via second bolts.

3. The motor shaft extension end sealing structure according to claim 1, characterized in that: Slide blocks are fixedly connected to both sides of the movable plate (8), and sliding grooves matching the slide blocks are provided on both sides of the inner cavity of the shell (7).

4. The motor shaft extension end sealing structure according to claim 1, characterized in that: A connecting flange (18) is sleeved on the right side of the surface of the extended shaft (2), and connecting holes (19) are opened around the right side of the connecting flange (18).

5. The motor shaft extension end sealing structure according to claim 1, characterized in that: The spring (9) is sleeved on the surface of the damper (10), and the bracket (6) and the housing (7) are fixedly connected.

6. The motor shaft extension end sealing structure according to claim 1, characterized in that: Buffer blocks (20) are fixedly connected to both sides of the inner cavity of the shell (7) away from the extended machine shaft (2), and the buffer blocks (20) are in contact with the movable plate (8). A dust filter is fixedly connected to the bottom of the booster pump (14).

7. The motor shaft extension end sealing structure according to claim 1, characterized in that: The surface of the sealing ring (5) is provided with an anti-slip pad, and mounting holes are provided on both sides of the top of the base (16).

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