Rotor shaft supporting structure with anti-vibration rubber sleeve

Abstract

The utility model discloses a rotor shaft supporting structure with an anti-vibration rubber sleeve, and particularly relates to the technical field of rotor shafts, the rotor shaft supporting structure comprises two supporting seats and a rotor shaft, one end of the rotor shaft passes through the two supporting seats, an inner frame is movably arranged between the two supporting seats, an extrusion assembly is arranged in the inner frame, and the extrusion assembly is provided with an anti-vibration rubber sleeve. And the extrusion assembly comprises a bearing cylinder, a piston rod, a sealing rubber ring, a spring, a connecting plate and an extrusion plate, one end of the bearing cylinder fixedly communicates with the inner frame, and one end of the piston rod extends into the bearing cylinder. According to the utility model, the plurality of extrusion plates approach the rotor shaft and apply uniform extrusion force, and the uniform extrusion force is distributed in the circumferential direction of the rotor shaft, so that the radial displacement of the rotor shaft can be effectively restrained, and the stability of the rotor shaft in the supporting seat is enhanced, and the rotor shaft is prevented from being damaged when rotating at a high speed. The vibration and shaking resistance is remarkably improved, the operation is simple, and the strength between the rotor shaft and the supporting seat is conveniently improved.

Description

Rotor shaft support structure with anti-vibration rubber sleeve Technical Field

[0001] This utility model relates to the field of rotor shaft technology, and more specifically, to a rotor shaft support structure with a vibration-damping rubber sleeve. Background Technology

[0002] The rotor shaft is the central support component of the rotor in rotating equipment. It is usually a long shaft structure. Other components of the rotor, such as impellers, gears, and armatures, are usually mounted on the rotor shaft and rotate with it. In various electric motors and generators, the rotor shaft is one of the core components. It drives the rotor to rotate in the stator magnetic field, realizing the mutual conversion between electrical energy and mechanical energy. By providing reliable support for the rotor shaft, it ensures that it maintains accurate position and axial direction during rotation, prevents excessive radial and axial displacement of the rotor shaft, and ensures the stability and reliability of the rotor system.

[0003] A search revealed that Chinese patent CN221126986U discloses a motor rotor. By setting a first limiting device and a second limiting device, the rotor winding is fixed by limiting the winding twice, which effectively reduces the participation of external forces during the assembly of the motor rotor, thereby reducing the bending deformation of the support shaft and effectively improving the service life of the motor rotor.

[0004] When the aforementioned rotor shaft is in use, it is limited by the support base. However, the connection between the rotor shaft and the support base is relatively fixed, making it difficult to dynamically adapt to changes in working conditions. It is also inconvenient to improve the strength between the rotor shaft and the support base. Vibration will cause alternating stress at the contact points between the rotor shaft and the support base, accelerating the wear of bearings, journals, and other parts, and shortening the service life of components. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a rotor shaft support structure with anti-vibration rubber sleeve, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotor shaft support structure with anti-vibration rubber sleeves, comprising two support seats and a rotor shaft, with one end of the rotor shaft passing through the two support seats. An inner frame is movably arranged between the two support seats, and an extrusion assembly is arranged inside the inner frame. The extrusion assembly includes a receiving cylinder, a piston rod, a sealing ring, a spring, a connecting plate, and an extrusion plate. One end of the receiving cylinder is fixedly connected to the inner frame, one end of the piston rod extends into the interior of the receiving cylinder, and the other end of the piston rod is fixedly connected to the connecting plate. The sealing ring is fixedly sleeved on the piston rod. Both ends of the spring are fixedly connected to the piston rod and the receiving cylinder, respectively, and the spring is located inside the receiving cylinder. The connecting plate and the extrusion plate are fixed together by fixing bolts. The number of extrusion assemblies is multiple.

[0007] Furthermore, an oil inlet pipe is fixedly connected to the outer side of the inner frame, and a valve is fixedly installed on the oil inlet pipe.

[0008] As can be seen, in the above technical solution, the output end of the oil pump is connected to the oil inlet pipe, the valve is opened and the oil pump is started, the oil pump draws external oil, and the oil enters the inner frame through the oil inlet pipe.

[0009] Furthermore, multiple locking blocks are fixedly connected to the outer side of the inner frame, and the multiple locking blocks extend into the interior of the two support seats respectively.

[0010] It can be seen that the above technical solution aims to improve the stability between the inner frame and the two support seats.

[0011] Furthermore, the outer side of the inner frame is fixedly fitted with multiple anti-vibration rubber ring pads, and the outer sides of the multiple anti-vibration rubber ring pads are in contact with the two support seats respectively.

[0012] It can be seen that the above technical solution reduces the vibration between the inner frame and the support.

[0013] Furthermore, both of the support seats are fixedly connected to the inside of anti-vibration rubber sleeves, and the inside of both anti-vibration rubber sleeves is in contact with the rotor shaft.

[0014] It can be seen that the above technical solution aims to reduce the vibration between the rotor shaft and the support.

[0015] Furthermore, one of the support seats is provided with a plurality of locking bolts, and the two support seats are fixed together by the plurality of locking bolts.

[0016] It can be seen that the above technical solution is designed to facilitate the fixing of the two support bases.

[0017] Furthermore, both of the support bases are provided with multiple mounting holes.

[0018] As can be seen, in the above technical solution, bolts are used to facilitate the fixing of the support base.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] 1. In this utility model, when the oil enters the receiving cylinder, the oil will squeeze the piston rod, thereby driving the connecting plate and the extrusion plate to move. Through multiple extrusion plates, the oil approaches the rotor shaft and applies uniform extrusion force. This uniform extrusion force is distributed in the circumferential direction of the rotor shaft, which can effectively constrain the radial displacement of the rotor shaft and enhance its stability in the support seat. This significantly improves the rotor shaft's ability to resist vibration and shaking when rotating at high speed. The operation is simple and convenient to improve the strength between the rotor shaft and the support seat.

[0021] 2. This utility model releases the fixation between two support seats by rotating multiple locking bolts in sequence and moving them away from the support seats. One of the support seats is then moved horizontally away from the rotor shaft, and the inner frame is removed from the other support seat for disassembly and maintenance. The anti-vibration rubber ring pad can reduce the vibration between the inner frame and the support seat, while the anti-vibration rubber sleeve can reduce the vibration between the rotor shaft and the support seat. The structure is simple and has a long service life. Attached Figure Description

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0023] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 is a schematic diagram of the assembly structure of the support base and inner frame of this utility model;

[0025] Figure 3 is a schematic diagram of the assembly structure of the support base and locking bolt of this utility model;

[0026] Figure 4 is a cross-sectional view of the inner frame and a schematic diagram of the assembly structure of the extrusion assembly of this utility model.

[0027] Figure 5 is a partial structural cross-sectional view of the extrusion assembly of this utility model.

[0028] In the diagram: 1. Support base; 2. Rotor shaft; 3. Anti-vibration rubber sleeve; 4. Locking bolt; 5. Oil inlet pipe; 6. Valve; 7. Inner frame; 8. Extrusion assembly; 9. Anti-vibration rubber ring gasket; 10. Clamping block; 801. Receiving cylinder; 802. Piston rod; 803. Sealing ring; 804. Spring; 805. Connecting plate; 806. Extrusion plate. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Referring to Figures 1-5 in the specification, the rotor shaft support structure with anti-vibration rubber sleeve in this embodiment includes two support seats 1 and a rotor shaft 2. One end of the rotor shaft 2 passes through the two support seats 1. An inner frame 7 is movably arranged between the two support seats 1. An extrusion assembly 8 is arranged inside the inner frame 7. The extrusion assembly 8 includes a receiving cylinder 801, a piston rod 802, a sealing ring 803, a spring 804, a connecting plate 805, and an extrusion plate 806. One end of the receiving cylinder 801 is fixedly connected to the inner frame 7. One end of the piston rod 802 extends into the interior of the receiving cylinder 801, and the other end of the piston rod 802 is fixedly connected to the connecting plate 805. The sealing ring 803 is fixedly sleeved on the piston rod 802. Both ends of the spring 804 are fixedly connected to the piston rod 802 and the receiving cylinder 801, respectively, and the spring 804 is located inside the receiving cylinder 801. The connecting plate 805 and the extrusion plate 806 are fixed together by fixing bolts. There are multiple extrusion assemblies 8.

[0031] Furthermore, an oil inlet pipe 5 is fixedly connected to the outer side of the inner frame 7, and a valve 6 is fixedly installed on the oil inlet pipe 5.

[0032] Furthermore, multiple locking blocks 10 are fixedly connected to the outer side of the inner frame 7, and the multiple locking blocks 10 extend into the interior of the two support seats 1 respectively. Multiple anti-vibration rubber ring pads 9 are fixedly sleeved on the outer side of the inner frame 7, and the outer side of the multiple anti-vibration rubber ring pads 9 respectively contacts the two support seats 1. Anti-vibration rubber sleeves 3 are fixedly connected inside the two support seats 1, and the interior of the two anti-vibration rubber sleeves 3 contacts the rotor shaft 2. Multiple locking bolts 4 are provided on one of the support seats 1, and the two support seats 1 are fixed together by multiple locking bolts 4.

[0033] Furthermore, both support bases 1 are provided with multiple mounting holes.

[0034] In this process, multiple locking bolts 4 are rotated sequentially and moved away from the support base 1, thereby releasing the fixation between the two support bases 1. One of the support bases 1 is moved horizontally and moved away from the rotor shaft 2. Then, the inner frame 7 is removed from the other support base 1. The inner frame 7 is disassembled and inspected. The anti-vibration rubber ring pad 9 can reduce the vibration between the inner frame 7 and the support base 1. At the same time, the anti-vibration rubber sleeve 3 can reduce the vibration between the rotor shaft 2 and the support base 1. The structure is simple and has a long service life. Similarly, the inner frame 7 is installed and fixed. The locking block 10 can improve the stability between the inner frame 7 and the two support bases 1.

[0035] The usage method of this embodiment is as follows:

[0036] In use, the operator passes the rotor shaft 2 through the two support seats 1, then connects the output end of the oil pump to the oil inlet pipe 5, opens the valve 6 and starts the oil pump. The oil pump draws in external oil, which enters the inner frame 7 through the oil inlet pipe 5. When the oil enters the receiving cylinder 801, it squeezes the piston rod 802. At the same time, the sealing ring 803 improves the sealing between the piston rod 802 and the receiving cylinder 801, thereby driving the connecting plate 805 and the extrusion plate 806 to move. The multiple extrusion plates 806 approach the rotor shaft 2 and apply a uniform extrusion force. This uniform extrusion force is distributed throughout the rotor shaft. In the circumferential direction of the spindle 2, the radial displacement of the rotor shaft 2 can be effectively constrained, enhancing its stability within the support 1. This significantly improves the rotor shaft 2's ability to resist vibration and sway when rotating at high speed. Similarly, closing the valve 6 prevents the oil from flowing out through the inlet pipe 5. This simple operation facilitates the improvement of the strength between the rotor shaft 2 and the support 1. At the same time, the piston rod 802 compresses the spring 804. When the oil is discharged, the spring 804 drives the piston rod 802 to reset. The fixing bolts release the connection between the connecting plate 805 and the pressing plate 806, allowing the pressing plate 806 to be disassembled and replaced.

[0037] All contents not described in detail in the specification are existing technologies known to those skilled in the art. The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotor shaft support structure with anti-vibration rubber sleeve, comprising two support seats (1) and a rotor shaft (2), wherein one end of the rotor shaft (2) passes through the two support seats (1), characterized in that: An inner frame (7) is movably disposed between the two support bases (1). An extrusion assembly (8) is disposed inside the inner frame (7). The extrusion assembly (8) includes a receiving cylinder (801), a piston rod (802), a sealing ring (803), a spring (804), a connecting plate (805), and an extrusion plate (806). One end of the receiving cylinder (801) is fixedly connected to the inner frame (7), and one end of the piston rod (802) extends into the interior of the receiving cylinder (801). The other end of the piston rod (802) is fixedly connected to the connecting plate (805), the sealing ring (803) is fixedly sleeved on the piston rod (802), the two ends of the spring (804) are fixedly connected to the piston rod (802) and the receiving cylinder (801) respectively, and the spring (804) is located inside the receiving cylinder (801). The connecting plate (805) and the extrusion plate (806) are fixed together by fixing bolts. The number of extrusion components (8) is multiple.

2. The rotor shaft support structure with anti-vibration rubber sleeve according to claim 1, characterized in that: An oil inlet pipe (5) is fixedly connected to the outside of the inner frame (7), and a valve (6) is fixedly installed on the oil inlet pipe (5).

3. The rotor shaft support structure with anti-vibration rubber sleeve according to claim 1, characterized in that: Multiple locking blocks (10) are fixedly connected to the outer side of the inner frame (7), and the multiple locking blocks (10) extend into the interior of the two support seats (1) respectively.

4. The rotor shaft support structure with anti-vibration rubber sleeve according to claim 1, characterized in that: The outer side of the inner frame (7) is fixedly fitted with multiple anti-vibration rubber ring pads (9), and the outer sides of the multiple anti-vibration rubber ring pads (9) are in contact with the two support seats (1) respectively.

5. The rotor shaft support structure with anti-vibration rubber sleeve according to claim 1, characterized in that: Both of the support bases (1) are fixedly connected with anti-vibration rubber sleeves (3), and the interior of both anti-vibration rubber sleeves (3) is in contact with the rotor shaft (2).

6. The rotor shaft support structure with anti-vibration rubber sleeve according to claim 1, characterized in that: One of the support seats (1) is provided with multiple locking bolts (4), and the two support seats (1) are fixed together by multiple locking bolts (4).

7. The rotor shaft support structure with anti-vibration rubber sleeve according to claim 1, characterized in that: Both of the support bases (1) have multiple mounting holes.

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