CN115182959A - A spring suspension damping system - Google Patents

Abstract

The invention discloses a spring suspension type shock absorption system, comprising: a support tube for protecting a motor, a shock absorption damping component, which is arranged at the outer wall of the top end of the support tube, wherein the shock absorption damping component includes a motor, a flange Disk, main spring, clip, gravity auxiliary support component and swing auxiliary limit component, the flange is installed and installed on the top of the outer wall of the motor through bolts, there are eight sets of clips, and each set of clips is respectively fixed on the flange. At the top of the outer wall of the blue plate and the support tube. The developed suspension damping scheme can effectively absorb the mechanical vibration caused by the misalignment of the center of mass of the rotating workpiece and the rotation axis of the motor spindle. The use of gravity springs and side rubber rods can realize auxiliary buffering of the lateral vibration of the motor. , and the use of permanent magnets to repel the motor to each other, buffer the longitudinal vibration of the motor, and ensure the stable absorption of vibration.

Description

A spring suspension damping system

technical field

The invention belongs to the technical field of shock absorption, in particular to a spring suspension type shock absorption system.

Background technique

Shock absorber is used to restrain the vibration of the spring when it rebounds after shock absorption, and is widely used in mechanical equipment.

For example, patent 20120564740.9 proposes a combination scheme of double-adjusting springs supporting shock absorbers, patent 200920119139.2 proposes an electronically controlled variable damping shock absorber, and patent 201721502594.1 proposes a shock-absorbing bushing assembly with shock-absorbing fluid. These patents use pneumatic The method is realized by various methods such as liquid and spring. In fact, the function of the shock absorption and damping elements mentioned in the realization, in fact, only depends on the action of the shock absorption mechanism, ignoring the overall layout of the mechanism and the peripheral design related to shock absorption. It greatly reduces the ability of the shock absorption mechanism, which is the main reason why the vibration noise of many mechanical equipment cannot be effectively weakened.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a spring suspension type damping system, the developed suspension type damping scheme can effectively absorb the mechanical vibration caused by the misalignment of the center of mass of the rotating workpiece and the rotation axis of the motor main shaft, using the gravity spring , and the side rubber rod, which can realize auxiliary buffering of the lateral vibration of the motor, and use the permanent magnet to carry out the mutual repulsion force of the motor, buffer the longitudinal vibration of the motor, and ensure the stable absorption of vibration.

The technical scheme adopted in the present invention is as follows: a spring suspension type shock absorption system, comprising:

Support tube, used to protect the motor;

The shock-absorbing and damping component is arranged at the top outer wall of the support tube, wherein: the shock-absorbing and damping component includes a motor, a flange, a main spring, a buckle, a gravity auxiliary support component and an auxiliary swing limit component, and the flange The disc is installed on the top of the outer wall of the motor by bolts. There are eight sets of said buckles, and each set of said buckles is respectively fixed at the top of the outer wall of the flange plate and the support tube. The two ends of the main spring It is wound around the top outer wall of the buckle. There are four gravity auxiliary support components in total. Each swing auxiliary limit component includes an auxiliary shell, a gravity spring and a side rubber rod. Each auxiliary shell is fixed It is arranged on the inner wall of the support tube, the gravity spring is embedded in the center of the inner wall of the auxiliary shell, and one end of the side rubber rod is embedded in the inner wall of the auxiliary shell. , each of the swing auxiliary limit components is arranged at the bottom of the inner wall of the support tube, each of the gravity auxiliary support components includes a buffer shell, a buffer spring and a permanent magnet, and the buffer shell is fixedly arranged on the inner wall of the support tube At the bottom center, the buffer spring is embedded in the inner wall of the buffer shell, and the permanent magnet is slidably embedded in the inner wall of the buffer shell.

Further, the output end of the motor is fixedly provided with a workpiece.

Further, a rubber ring is slidably embedded in the inner wall of each of the main springs.

Further, the permanent magnet is located at the bottom center of the outer wall of the motor.

Further, the top outer wall of the buckle is provided with a clamping groove, and the cross-section of the clamping groove is semicircular.

Further, the engaging grooves are matched with both ends of the main spring.

Further, the outer wall of one end of the side rubber rods close to each other is protrudingly arranged, and the outer wall of one end of the side rubber rods close to each other is attached to the outer wall of the motor.

Further, one end of the gravity spring is fixedly arranged at one end of the side rubber rod, and the other end of the gravity spring is fixedly arranged at the center of the inner wall of the auxiliary block.

Further, one end of the buffer spring is fixedly arranged at the bottom end of the permanent magnet, and the other end of the buffer spring is fixedly arranged at the bottom center of the inner wall of the buffer shell.

Further, the top side of the outer wall of the workpiece is provided with a counterweight.

To sum up, due to the adoption of the above-mentioned technical solutions, the beneficial effects of the present invention are:

The developed suspension damping scheme can effectively absorb the mechanical vibration caused by the misalignment of the center of mass of the rotating workpiece and the rotation axis of the motor spindle. The use of gravity springs and side rubber rods can realize auxiliary buffering of the lateral vibration of the motor. , and use permanent magnets to repel the motor to each other, buffer the longitudinal vibration of the motor, and ensure the stable absorption of vibration.

Description of drawings

Fig. 1 is the perspective view of the present invention;

Fig. 2 is the front view of the present invention;

3 is a partial half-section perspective view of the present invention;

Fig. 4 is the perspective view of the utility model auxiliary shell;

FIG. 5 is a cross-sectional view of the utility model.

Markings in the figure: 1. Support tube; 2. Motor; 3. Flange plate; 4. Main spring; 5. Buckle; 6. Workpiece; 7. Auxiliary shell; 8. Gravity spring; 9. Side rubber rod; 10 , buffer shell; 11, buffer spring; 12, permanent magnet; 13, rubber ring.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Example 1

Referring to Figures 1 to 3: a spring suspension type shock absorption system, comprising: a support tube 1, used to protect the motor 2, a shock absorption damping component, arranged at the outer wall of the top end of the support tube 1, wherein: shock absorption damping The components include motor 2, flange plate 3, main spring 4, buckle 5, gravity auxiliary support assembly and swing auxiliary limit assembly. The flange plate 3 is installed and installed with the top of the outer wall of the motor 2 through bolts, and the buckle 5 is set in total There are eight groups, each group of buckles 5 are respectively fixed at the top of the outer wall of the flange 3 and the support tube 1, the two ends of the main spring 4 are wound around the top outer wall of the buckle 5, and the gravity-assisted support components are provided with a total of Four, each swing auxiliary limit assembly includes an auxiliary shell 7, a gravity spring 8 and a side rubber rod 9, each auxiliary shell 7 is fixedly arranged on the inner wall of the support tube 1, and the gravity spring 8 is embedded in the auxiliary shell 7. At the center of the inner wall, one end of the side rubber rod 9 is embedded in the inner wall of the auxiliary shell 7. There are four swing auxiliary limit assemblies in total, and each swing auxiliary limit assembly is located at the bottom of the inner wall of the support tube 1. Each gravity auxiliary support assembly includes a buffer shell 10, a buffer spring 11 and a permanent magnet 12. The buffer shell 10 is fixedly arranged at the bottom center of the inner wall of the support tube 1, the buffer spring 11 is embedded in the inner wall of the buffer shell 10, and the permanent magnet 12 Slidingly embedded in the inner wall of the buffer shell 10, the flange 3 is connected to the frame body of the support tube 1 through the springs of the 8 groups of shock absorption and damping components 2. According to calculation, when the motor 2 is not started, the tensile deformation of the main spring 4 The amount is about 25% of the length of the unstressed spring. The rotating workpiece 6 installed on the axis of the motor 2. It is worth noting that the upper side of the rotating workpiece 6 is a fixed mass counterweight, and the other side is a specified mass. Execution workpiece 6, in this example, the weight of the counterweight is 240g, and the weight range of execution workpiece 6 varies within the range of 1620g. When the working speed is 2800rpm, the elongation of the spring changes by about 22%-28%. After testing Test, within this range, the elastic deformation coefficient of the main spring 4 is basically constant, which meets the design and selection requirements of the present invention for the spring. It can be further clarified in the figure that the flange 3 passes through the spring of the shock absorption and damping structure, and the support tube 1 It is connected to the buckle 5. It is worth noting that the buckle 5 and the spring of the shock absorption and damping structure 2 should avoid metal contact, and a relatively hard elastomer material such as PTFE can be used as the barrier medium. In addition, In the figure, the permanent magnets 12 of the same nature arranged in the circumference of the gravity-assisted support structure of the working part, because the motor itself has the phenomenon of uneven mass distribution around the rotation axis, for example, a junction box is installed on the motor housing, so the magnetic The distribution should fully consider the weight distribution of the local working part.

1-3: the output end of the motor 2 is fixedly provided with a workpiece 6, the inner wall of each main spring 4 is slidably embedded with a rubber ring 13, the permanent magnet 12 is located at the center of the bottom of the outer wall of the motor 2, and the permanent magnet is divided into upper The permanent magnet and the lower permanent magnet, the upper permanent magnet is arranged at the bottom of the outer wall of the motor 2, and the permanent magnets 12 of the same sex are used to ensure mutual repulsion and buffering. It is semi-circular, the snap groove matches with the two ends of the main spring 4, the outer wall of the end of the side rubber rods 9 close to each other is convexly arranged, the outer wall of the end of the side rubber rods 9 close to each other is attached to the outer wall of the motor 2, and the gravity spring One end of 8 is fixedly arranged at one end of the side rubber rod 9, the other end of the gravity spring 8 is fixedly arranged at the center of the inner wall of the auxiliary shell 7, one end of the buffer spring 11 is fixedly arranged at the bottom end of the permanent magnet 12, the buffer spring 11 The other end is fixedly arranged at the bottom center of the inner wall of the buffer shell 10, and the top side of the outer wall of the workpiece 6 is provided with a counterweight, wherein the working part is composed of the motor 2, the flange 3, and the rotating workpiece installed on the shaft of the motor 2 It is worth noting that the structure of the rotating workpiece 6 is flexible and diverse, and the load will also change within a certain range. In the actual working process, it is difficult to completely coincide the center of mass of the rotating workpiece 6 and the rotation axis of the main shaft of the motor 2, thus Caused by the mechanical vibration caused by eccentricity, the motor 2 provides power for the rotation of the rotating workpiece 6, the flange 3 is integrated with the motor 2, and a uniformly arranged connection structure is processed or installed on it, which is used for the working part and the reducer. The connection of the shock damping components, the shock damping components are composed of springs and rubber rings 13, and in the solution mentioned in the present invention, they are evenly arranged on the circumference in more than two groups, and the design and selection of the main spring 4 should take into account its The elastic coefficient is not constant in nature. Taking a tension spring as an example, in the process of being subjected to tensile force, its elastic coefficient is the largest at the initial stage, and then gradually decreases, while the change gradient of the elastic coefficient first becomes smaller. The law of later increase, the change of the elastic coefficient of the spring of the shock-absorbing damping component has a range where the elastic coefficient is basically unchanged. For this reason, the spring preload of the shock-absorbing and damping component needs to reach the relative middle position within this range, and the working part rotates to work. During the process, due to the effect of the eccentric moment of inertia, the centrifugal force will increase the tension at one time, and at the same time reduce the tension of the spring of the shock-absorbing damping component on the other side. The requirement of the damping component spring is to keep it working in the range where the elastic coefficient is basically constant. The process of changing the spring deformation is to absorb the vibration caused by the eccentric rotation of the working part. At the same time, because the spring itself is a steel wire During the working process, a flexible rubber ring 13 should be used to absorb the shock wave transmitted by the steel wire. The rubber ring 13 is located in the core of the spring, and there is also a requirement for pre-tightening expansion. The direction is vertical, the rubber ring 13 is made of elastomer material such as rubber, the shock absorption and damping components include the motor 2, the flange 3, the main spring 4, the buckle 5, and the gravity auxiliary support component And the swing auxiliary limit component as a whole, its vibration modal frequency should be far away from the vibration frequency caused by the speed of the motor 2, the support tube 1 should have sufficient rigidity, and the necessary shape and position tolerances should be guaranteed during the design, manufacture and assembly process. Ensure the levelness of the flange plane of the working part. In addition, the buckle 5 is used for the connection between the support tube 1 and the damping and damping components. The gravity auxiliary support component of the working part is installed on the bottom plane of the frame main body, which mainly plays the role of supporting the gravity of the working part. To reduce the deformation of the spring in the shock-absorbing damping part due to the gravity of the working part, its structure can adopt the combined structure of the main spring 4 and the rubber ring 13, or the shock-absorbing spring structure, or the magnetic field structure, and the working part gravity assists the support The component uses a multi-point support layout, which also plays the role of adjusting the level of the flange of the working part. In addition, the auxiliary limit mechanism for the swing of the working part is installed on the main frame. The main function is to limit the swing of the working part. 2. Contact occurs, so elastic materials, such as rubber, should be used in the contact part. Not only that, the function of installing shock-absorbing components is to reduce the vibration transmission between the shock-absorbing structure mentioned in the present invention and the external installation environment, thereby generating contact vibration and noise. .

A method of using a spring-suspended damping system provided by an embodiment of the present invention will be described in detail below. The method of using the system includes the following steps: firstly, during the rotation of the motor 2, due to the deviation between the workpiece 6 and the rotor shaft of the motor 2, vibration The self-weight of the flange 3 and the motor 2 causes the end of the main spring 4 close to the flange 3 to sink, and the primary shock absorption is completed by the clamping of the main spring 4 and the buckle 5, and the rubber ring 13 is used to eliminate the spring Vibration is generated, and then the auxiliary casing 7, the gravity spring 8 and the side rubber rod 9 are used to realize the lateral vibration of the motor 2, and the permanent magnet 12 is used to buffer the bottom of the motor 2 to buffer the longitudinal vibration.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (10)

1. a spring suspension type shock absorption system, is characterized in that, comprises: a support tube (1) for the protection of the motor (2); The shock-absorbing and damping component is arranged at the top outer wall of the support tube (1), wherein: the shock-absorbing and damping component includes a motor (2), a flange (3), a main spring (4), a buckle (5), Gravity auxiliary support assembly and swing auxiliary limit assembly, the flange plate (3) is installed with the top of the outer wall of the motor (2) through bolts, and there are eight groups of the buckles (5), each group of which is described in The buckles (5) are respectively fixed at the top of the outer wall of the flange plate (3) and the support tube (1), and both ends of the main spring (4) are wound around the top outer wall of the buckles (5), so There are four gravity auxiliary support assemblies in total, and each swing auxiliary limit assembly includes an auxiliary shell (7), a gravity spring (8) and a side rubber rod (9). Each auxiliary shell (7) It is fixedly arranged on the inner wall of the support tube (1), the gravity spring (8) is embedded in the center of the inner wall of the auxiliary shell (7), and one end of the side rubber rod (9) is embedded in the auxiliary shell (7) At the inner wall of the support tube (1), there are four swing auxiliary limit assemblies in total, each of the swing auxiliary limit assemblies is located at the bottom of the inner wall of the support tube (1), and each of the gravity auxiliary support assemblies includes a buffer A shell (10), a buffer spring (11) and a permanent magnet (12), the buffer shell (10) is fixedly arranged at the bottom center of the inner wall of the support tube (1), and the buffer spring (11) is embedded in the buffer shell At the inner wall of (10), the permanent magnet (12) is slidably embedded in the inner wall of the buffer shell (10). 2 . The spring suspension type shock absorption system according to claim 1 , wherein a workpiece ( 6 ) is fixedly arranged at the output end of the motor ( 2 ). 3 . 3 . The spring suspension type shock absorption system according to claim 2 , wherein a rubber ring ( 13 ) is slidably embedded in the inner wall of each of the main springs ( 4 ). 4 . 4. A spring suspension type shock absorption system according to claim 3, characterized in that: the permanent magnet (12) is located at the center of the bottom of the outer wall of the motor (2). 5 . The spring suspension type shock absorbing system according to claim 4 , wherein a clamping groove is formed on the outer wall of the top end of the buckle ( 5 ), and the cross-section of the clamping groove is semicircular. 6 . 6 . The spring suspension type shock absorption system according to claim 5 , characterized in that: the snap grooves are matched with both ends of the main spring ( 4 ). 7 . 7 . The spring suspension type shock absorbing system according to claim 6 , wherein the outer walls of the side rubber rods ( 9 ) close to each other are convexly arranged, and the side rubber rods ( 9 ) are close to each other. 8 . The outer wall of one end is attached to the outer wall of the motor (2). 8. A spring suspension type shock absorption system according to claim 7, characterized in that: one end of the gravity spring (8) is fixedly arranged at one end of the side rubber rod (9), and the gravity spring (8) ) is fixedly arranged at the center of the inner wall of the auxiliary block (7). 9. A spring suspension type shock absorption system according to claim 8, characterized in that: one end of the buffer spring (11) is fixedly arranged at the bottom end of the permanent magnet (12), and the buffer spring (11) is fixed at the bottom end of the permanent magnet (12). ) is fixedly arranged at the bottom center of the inner wall of the buffer shell (10). 10. A spring suspension type shock absorption system according to claim 9, characterized in that a counterweight is provided on one side of the top of the outer wall of the workpiece (6).

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