CN204704303U - A kind of changes mechanical energy is the energy regenerative vibration damper of electric energy - Google Patents

Abstract

The utility model relates to an energy-feeding shock absorber for converting mechanical energy into electric energy, comprising an upper box and a lower box. A ball screw pair is arranged in the middle of the top of the lower box. The ball screw pair includes a The nut on the top of the body, the screw rod and the ball in the nut are set. The top of the screw rod is provided with two reversely installed overrunning clutches, and the outer walls of the two overrunning clutches are equipped with central gears. The upper part is provided with a generator, the input end of the generator is provided with an input gear, and the lower part of the upper box is provided with an outer ring gear, and the outer ring gear is provided with three inner ring gears at intervals, and the inner ring gear at the top Meshing with the input gear, the ring gear in the middle meshes with the sun gear at the top. The device can make the generator always rotate in one direction to generate electricity, thereby improving the energy utilization efficiency and the service life of the generator.

Description

An energy-feeding shock absorber that converts mechanical energy into electrical energy

technical field

The utility model relates to an energy-feeding shock absorber which converts mechanical energy into electric energy.

Background technique

For the energy recovery of shock absorbers, many scholars at home and abroad have proposed many methods, many of which are just concepts, and it is difficult to meet the actual requirements. There are two methods that can be used for reference, hydraulic energy storage recovery method and electromagnetic energy storage recovery method. After the last two decades of research, we can conclude that compared with the electromagnetic type and the hydraulic type, it can be clearly found that the demand for this part of energy is low, and the relevant data show that the extra mass of the electromagnetic energy-feed suspension is lighter, and the performance is better. Higher precision and more sensitive response speed. But the service life of these shock absorbers is short, and the energy utilization rate is low.

Contents of the invention

The utility model makes improvements to the problems existing in the above-mentioned prior art, that is, the technical problem to be solved by the utility model is to provide an energy-feeding shock absorber that converts mechanical energy into electrical energy, which can make the generator rotate in one direction to generate electricity. Improve energy utilization efficiency and generator life.

In order to solve the above-mentioned technical problems, a technical solution of the present invention is: a kind of energy-feeding shock absorber that converts mechanical energy into electric energy, including an upper box and a lower box, and a ball screw is arranged in the middle of the top of the lower box pair, the ball screw pair includes a nut fixed on the top of the lower box, a screw rod and a ball in the nut, the top of the screw rod is provided with two reversely installed overrunning clutches, and the outer walls of the two overrunning clutches are Center gears are set on each, the upper part of the upper box is provided with a generator, the input end of the generator is provided with an input gear, the lower part of the upper box is provided with an outer ring gear, and the outer ring gear is arranged at intervals There are three ring gears, the top ring gear meshes with the input gear, the middle ring gear meshes with the top sun gear, and the bottom ring gear meshes with the bottom sun gear through two planetary gears The two planetary gears are fixed by two vertical shafts erected on the bottom plate of the lower box, so that when the shock absorber reciprocates up and down, the input gears of the generator all rotate in one direction.

Further, the top of the upper box is provided with an upper ring, and the bottom of the lower box is provided with a lower ring.

Further, a thrust bearing supporting the screw rod is arranged in the middle of the bottom of the upper box.

Further, the outer ring gear is fixed in the upper case through a support ring.

Further, in order to avoid excessive torque, the screw rod is composed of a connecting rod and a screw shaft, the connecting rod is connected with an overrunning clutch, the screw shaft is matched with a nut, and the connecting rod and the screw shaft pass through Coupling drive connection.

Further, the connections between the connecting rod and the overrunning clutch, and between the overrunning clutch and the sun gear are all keyed connections, and a bushing for separating them is arranged between the two overrunning clutches.

Compared with the prior art, the utility model has the following beneficial effects: the device utilizes the up and down vibration of the automobile to cause the suspension to be compressed upwards and stretched downwards, but the rotor in the generator will only rotate clockwise, always moving toward one direction rotation. In this way, there is no need for the motor rotor to switch the direction of rotation at a high frequency, which ultimately prolongs the life of the motor. In addition, other advantages of the energy-feeding shock absorber designed in this way are as follows:

1) Small size;

2) Quick response, good follow-up, can realize seamless operation;

3) Strong environmental adaptability, strong impact resistance, stable and safe process;

4) Fine operation can be realized, and it is easy to actively control the suspension artificially;

5) Long life and high energy feeding efficiency;

6) Change the linear motion into rotary motion, the thrust meets the requirements, and the work efficiency is high.

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the utility model.

Fig. 2 is a schematic diagram of the structure of the outer ring gear in the embodiment of the utility model.

Fig. 3 is a schematic diagram of the operation state of the compression process in the embodiment of the utility model.

Fig. 4 is a schematic diagram of the operating state of the stretching process in the embodiment of the present invention.

In the figure: 1-upper box, 11-upper ring, 12-vertical shaft, 2-lower box, 21-lower ring, 3-ball screw pair, 31-screw shaft, 32-nut, 33-connecting rod , 34-coupling, 35-top overrunning clutch, 36-bottom overrunning clutch, 37-shaft sleeve, 38-top sun gear, 39-bottom sun gear, 4-generator, 41-input gear, 5-outer ring Gears, 51-top ring gear, 52-middle ring gear, 53-bottom ring gear, 54-support ring, 6-angular contact ball bearing, 7-planetary gear.

Detailed ways

Embodiment 1: As shown in Figures 1-2, an energy-feeding shock absorber that converts mechanical energy into electrical energy includes an upper box 1 and a lower box 2, and a ball screw pair is arranged in the middle of the top of the lower box 2 3. The ball screw pair 3 includes a nut 32 fixed on the top of the lower box body 2, a screw and a ball inside the nut. In order to avoid excessive torque, the screw consists of a connecting rod 33 and a screw shaft 31. The connecting rod 33 is connected with the overrunning clutch, the screw shaft 31 is matched with the nut 32, the connecting rod 33 and the screw shaft 31 are connected through a coupling 34, and the top of the connecting rod 33 is provided with a counter To the top overrunning clutch 35 and the bottom overrunning clutch 36 installed, the top sun gear 38 and the bottom sun gear 39 are sleeved on the outer walls of the two overrunning clutches, and the upper part of the upper box 1 is provided with a generator 4. The input end of the generator 4 is provided with an input gear 41, and the lower part of the upper box 1 is provided with an outer ring gear 5, and the outer ring gear 5 is provided with three inner ring gears at intervals, and the inner ring gear 51 at the top is connected to the inner ring gear 5. The input gear 41 is meshed, the ring gear 52 in the middle is meshed with the sun gear 38 at the top, the ring gear 53 at the bottom is meshed with the sun gear 39 at the bottom through two planetary gears 7, the two The planetary gear 7 is fixed by two vertical shafts 12 erected on the lower box bottom plate, so that when the shock absorber reciprocates up and down, the input gear of the generator all rotates in one direction.

In this embodiment, an upper suspension ring 11 is provided on the top of the upper box body 1, and a lower suspension ring 21 is provided at the bottom of the lower box body 2, and the upper suspension ring 11 and the lower suspension ring 21 are used to be hinged on the vehicle suspension.

In this embodiment, an angular contact ball bearing 6 supporting the screw is arranged in the middle of the bottom of the upper box 1 to prevent the ball screw from axially moving relative to the upper box (up and down translation), because the car is moving During the process, the force on the shock absorber is multi-directional, and it will be subjected to both radial and axial forces.

In this embodiment, the outer ring gear 5 is fixed in the upper case through a support ring 54 .

In this embodiment, the connections between the connecting rod 33 and the overrunning clutch, and between the overrunning clutch and the sun gear are all keyed connections, and a bushing is arranged between the two overrunning clutches to separate them.

The energy recovery process of this device is as follows:

(1) Compression process: As shown in Figure 3, when the upper box and the lower box move towards each other, the screw moves upward along the nut in a straight line, and at the same time rotates counterclockwise. The screw drives the overrunning clutch B to rotate, overtaking Clutch A idles, and then drives the outer ring gear 5 to rotate, and the outer ring gear drives the input gear 41 of the generator to rotate clockwise, converting mechanical energy into electrical energy;

(2) Stretching process: As shown in Figure 4, when the upper box and the lower box move in the opposite direction, the screw moves downward in a straight line along the nut, and at the same time rotates clockwise, and the screw drives the overrunning clutch A to rotate , the overrunning clutch B idles, and then drives the outer ring gear 5 to rotate, and the outer ring gear 5 drives the input gear 41 of the generator to rotate clockwise to convert mechanical energy into electrical energy.

This device makes the motor rotate in the same direction during the up and down reciprocating motion of the shock absorber, so that the energy can be maximized. At the same time, the input shaft of the motor does not need to be reversed, but only needs to rotate in the same direction. The service life of the motor.

The above descriptions are only preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the patent scope of the present utility model shall fall within the scope of the present utility model.

Claims (6)

1. A kind of energy-feeding shock absorber that mechanical energy is converted into electric energy, it is characterized in that: comprise upper box body and lower box body, the middle of described lower box body top is provided with ball screw pair, and this ball screw pair includes fixed device The nut on the top of the lower box body, the screw rod and the ball in the nut are set, and the top of the screw rod is provided with two reversely installed overrunning clutches, and the outer walls of the two overrunning clutches are equipped with central gears. The upper part of the box is provided with a generator, the input end of the generator is provided with an input gear, and the lower part of the upper box is provided with an outer ring gear, and the outer ring gear is provided with three inner ring gears at intervals. The ring gear meshes with the input gear, the ring gear at the middle meshes with the sun gear at the top, the ring gear at the bottom meshes with the sun gear at the bottom through two planetary gears, and the two planetary gears pass through Two vertical shafts erected on the lower box bottom plate are fixed so that when the shock absorber reciprocates up and down, the input gear of the generator all rotates in one direction. 2 . The energy-feeding shock absorber for converting mechanical energy into electrical energy according to claim 1 , wherein an upper suspension ring is provided on the top of the upper box, and a lower suspension ring is provided at the bottom of the lower box. 3 . 3. The energy-feeding shock absorber for converting mechanical energy into electric energy according to claim 1, characterized in that: a thrust bearing supporting the screw is arranged in the middle of the bottom of the upper box. 4. The energy-feeding shock absorber for converting mechanical energy into electric energy according to claim 1, characterized in that: the outer ring gear is fixed in the upper box through a support ring. 5. The energy-feeding shock absorber for converting mechanical energy into electric energy according to claim 1, characterized in that: in order to avoid excessive torque, the screw rod is composed of a connecting rod and a screw shaft, and the connecting rod and the overrunning clutch The screw shaft is connected with the nut, and the connecting rod and the screw shaft are connected through a coupling. 6. The energy-feeding shock absorber for converting mechanical energy into electric energy according to claim 5, characterized in that: the connections between the connecting rod and the overrunning clutch, and between the overrunning clutch and the sun gear are key connections, and the two overrunning clutches A shaft sleeve for separating the two is arranged between them.