CN110985626B

CN110985626B - Gear rack inertial container device with unidirectional rotation flywheel

Info

Publication number: CN110985626B
Application number: CN201911124309.0A
Authority: CN
Inventors: 胡银龙; 王昭延; 熊思杰; 王昊宇; 郑飞翔; 花天阳; 王佳宁
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2021-02-09
Anticipated expiration: 2039-11-18
Also published as: CN110985626A

Abstract

The invention discloses a gear-rack inertial container device with a flywheel rotating in a single direction, which comprises a rack, a first transmission mechanism, a second transmission mechanism, a third transmission mechanism, the flywheel and a shell, wherein the first transmission mechanism comprises a first pinion and a first bull gear which share a first central shaft, the second transmission mechanism comprises a second pinion and a second bull gear which share a second central shaft, the third transmission mechanism comprises a third pinion and a third bull gear which share a third central shaft, the third central shaft moves along a section of circular arc which is concentric with the third central shaft, the rack is meshed with the first pinion, the first bull gear is meshed with the second pinion, the second bull gear is meshed with the third pinion, and the flywheel is meshed with or separated from the third bull gear along with the movement of the third bull gear. The invention has the advantages of few components, changeable size of the components, safe packaging and convenient installation; the energy utilization of reciprocating motion in the horizontal direction of the rack can be realized, and the rack has better performance.

Description

Gear rack inertial container device with unidirectional rotation flywheel

Technical Field

The invention belongs to a vibration control device, and particularly relates to a gear rack inertial container device with a flywheel rotating in a single direction.

Background

The inerter is an element with two independent ends and resembles a spring and a damper. Inertials have the property that the forces exerted on two end points are directly proportional to the relative acceleration between their end points. This ratio is the "inertial volume". The mechanical vibration isolation network composed of the inertial volume, the spring and the damper is widely applied to the fields of vehicle suspension vibration isolation, building vibration isolation and the like. The inertial container has a relatively simple structure and a relatively good effect, so the inertial container is widely applied. At present, ball screw type inerter, gear rack inerter and hydraulic inerter are mainly used. The inertial volume can be calculated from the moment of inertia of the gear set, the radius, and the moment of inertia of the flywheel. The rotation direction of the flywheel is changed without changing the inertia capacity. The gear rack inertial container proposed in the early stage converts the linear horizontal motion of the rack into the rotation of the flywheel, converts the acting force of two endpoints into the rotation of the flywheel and stores the rotation, and further realizes the vibration reduction effect. Under this arrangement, the movement of the rack first in one direction causes the flywheel to rotate, but when the rack is moved in the opposite direction, the flywheel will also rotate in the opposite direction. The rotation motion of the flywheel in two directions is not beneficial to further converting the energy of the flywheel into electric energy and the like for vibration energy collection.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention aims to provide the gear rack inertial container device with the unidirectional rotation flywheel, which has the advantages of few components, changeable size of the components, safe packaging and convenient and fast installation.

The technical scheme is as follows: the invention relates to a gear-rack inertial container device with a flywheel rotating in a single direction, which comprises a rack, a first transmission mechanism, a second transmission mechanism, a third transmission mechanism, the flywheel and a shell, wherein the first transmission mechanism comprises a first pinion and a first bull gear which share a first central shaft, the second transmission mechanism comprises a second pinion and a second bull gear which share a second central shaft, the third transmission mechanism comprises a third pinion and a third bull gear which share a third central shaft, the third central shaft moves along a section of circular arc which is concentric with the third central shaft, the rack is meshed with the first pinion, the first bull gear is meshed with the second pinion, the second bull gear is meshed with the third pinion, and the flywheel is meshed with or separated from the third bull gear along with the movement of the third bull gear.

The diameter of the first gearwheel is larger than that of the second gearwheel. The diameter of the second gearwheel is larger than that of the third gearwheel. The diameter of the flywheel is larger than that of the bull gear III and smaller than that of the bull gear II, so that stability of the flywheel is maintained, and the flywheel cannot run away. Preferably, the diameter ratio of the first gearwheel, the second gearwheel, the third gearwheel and the flywheel is 15: 8: 6: 10.

The rack is installed at a rack groove of the housing to perform a horizontal movement. When the third transmission mechanism rotates anticlockwise, the third gearwheel is meshed with the flywheel, and when the third transmission mechanism rotates clockwise, the third gearwheel is disengaged from the flywheel.

The rack, the first transmission mechanism, the second transmission mechanism, the third transmission mechanism and the flywheel are distributed in a step shape from low to high and are all packaged in the shell. The first central shaft, the second central shaft, the third central shaft and the shaft of the flywheel are all fixed at the groove of the shell. The third transmission mechanism is semi-fixed.

In order to enable the flywheel to rotate in a single direction (anticlockwise direction) all the time, the rack and pinion inertia containing device further comprises a fourth transmission mechanism and a fifth transmission mechanism, the fourth transmission mechanism comprises a pinion gear four and a bull gear four which share a central shaft four, the fifth transmission mechanism comprises a pinion gear five and a bull gear five which share a central shaft five, the pinion gear four is meshed with the bull gear two, the central shaft five moves along a section of circular arc of a circle concentric with the central shaft four, the bull gear four is meshed with the pinion gear five, and the flywheel is meshed with or separated from the bull gear five along with the movement of the bull gear five.

When the fourth transmission mechanism rotates clockwise, the third transmission mechanism rotates clockwise, the gearwheel four is disengaged from the flywheel, and the gearwheel five is engaged with the flywheel. When the fourth transmission mechanism rotates anticlockwise, the third transmission mechanism rotates anticlockwise, the gearwheel four is meshed with the flywheel, and the gearwheel five is separated from the flywheel.

The rack, the first transmission mechanism, the second transmission mechanism, the third transmission mechanism, the flywheel, the fourth transmission mechanism and the fifth transmission mechanism are all made of the same material. The central shaft IV is fixed at the groove of the shell. The fifth transmission mechanism is semi-fixed.

The working principle is as follows: the unidirectional rotation of the flywheel is realized mainly by using mechanical transmission and the mobility of a third transmission mechanism. The linear horizontal motion of the rack is converted into the rotation of the first transmission mechanism by mechanical transmission, and the first transmission mechanism further continuously transmits the rotation of the first transmission mechanism to the third transmission mechanism by meshing with the teeth of the second transmission mechanism. The rotating engagement friction is not counted, and the size of the first gear wheel of the first transmission mechanism is larger than that of the second gear wheel of the second transmission mechanism, so that the second gear wheel has larger rotating speed. Similarly, the second gearwheel of the second transmission mechanism is always meshed with the third pinion of the third transmission mechanism to transmit the rotation of the second gearwheel to the third pinion, because the second gearwheel is larger than the third gearwheel in size, the third gearwheel has smaller mass under the condition of the same material and density, the third gearwheel has larger rotating speed by integrating the gear and the mass, and because the third central shaft is unfixed and is positioned on a section of arc of a concentric circle with the third central shaft as the center of circle, the third gearwheel and the third pinion move against the rotating direction of the second transmission mechanism under the driving of the second gearwheel.

Has the advantages that: compared with the prior art, the invention has the following remarkable characteristics:

1. the number of components is small, the size of the components can be large or small, the packaging is safe, and the installation is convenient;

2. in the reciprocating motion of the rack, the flywheel rotates only in a certain motion direction of the rack, and rotates by means of inertia or is in a stop state when the rack moves in the other direction, so that the unidirectional rotation of the flywheel is realized;

3. the energy utilization of reciprocating motion in the horizontal direction of the rack can be realized, and the rack has better performance.

Drawings

Fig. 1 is an unencapsulated perspective view of embodiment 1 of the present invention.

Fig. 2 is a perspective view of a package of embodiment 1 of the present invention.

Fig. 3 is a front view of embodiment 1 of the present invention with the casing 6 omitted.

Fig. 4 is a schematic view of the compression movement in embodiment 1 of the present invention.

Fig. 5 is a drawing motion diagram of embodiment 1 of the present invention.

Fig. 6 is a front view of embodiment 2 of the present invention with the housing 6 omitted.

Fig. 7 is a schematic view of the compression movement in embodiment 2 of the present invention.

Fig. 8 is a drawing motion diagram of embodiment 2 of the present invention.

Detailed Description

The directions shown in the drawings of the specification are up, down, left and right.

Example 1

As shown in fig. 1 to 3, the rack 1 is installed in a rack slot of the housing 6, and can be flexibly pulled inward and outward (horizontally moved), and the housing 6 is provided with a first transmission mechanism 2, a second transmission mechanism 3, a third transmission mechanism 4 and a flywheel 5. The third central axis 401 moves along an arc of a circle concentric with the second central axis 301. The rack 1 is meshed with a first pinion 202 of the first transmission mechanism 2, and the first pinion 202 and a first bull gear 203 rotate coaxially. The first gearwheel 203 is meshed with the second pinion 302 of the second transmission mechanism 3, and the second pinion 302 and the second gearwheel 303 rotate coaxially. The second gearwheel 303 meshes with a third gearwheel 402 of the third transmission 4, and the third gearwheel 402 and the third gearwheel 403 rotate coaxially. The diameter of the first gearwheel 203 is larger than that of the second gearwheel 303, the diameter of the second gearwheel 303 is larger than that of the third gearwheel 403, and the diameter of the flywheel 5 is between that of the third gearwheel 403 and that of the second gearwheel 303. The first pinion 202, the first gearwheel 203, the second pinion 302, the second gearwheel 303, the third pinion 402, the third gearwheel 403 and the flywheel 5 are made of the same material.

As shown in fig. 4, when the rack 1 performs a compression motion leftward, the first transmission mechanism 2 rotates clockwise, the second transmission mechanism 3 rotates counterclockwise, and the third transmission mechanism 4 rotates clockwise, because the third transmission mechanism 4 and the second transmission mechanism 3 are always engaged, the central shaft three 401 is forced to carry the pinion gear three 402 and the bull gear three 403 to move upward along an arc concentric with the central shaft two 301, and the bull gear three 403 contacts with the lower teeth of the flywheel 5, so as to drive the flywheel 5 to rotate counterclockwise.

As shown in fig. 5, when the rack 1 performs a stretching movement to the right, the first transmission mechanism 2 rotates counterclockwise, the second transmission mechanism 3 rotates clockwise, and the third transmission mechanism 4 rotates counterclockwise. Because the third transmission mechanism 4 and the second transmission mechanism 3 are engaged all the time, the central shaft three 401 is forced to carry the pinion gear three 402 and the bull gear three 403 to move downwards along a section of arc concentric with the central shaft two 301, and the pinion gear three 402 and the bull gear three 403 are separated from the flywheel 5, and the flywheel 5 continues to rotate anticlockwise or stops rotating by means of inertia.

Example 2

As shown in fig. 6, the apparatus of embodiment 1 is further modified by adding a fourth transmission mechanism 7 and a fifth transmission mechanism 8, and a central axis five 801 of the fifth transmission mechanism 8 can move along an arc of a circle concentric with a central axis four 701 of the fourth transmission mechanism 7.

As shown in fig. 7, when the rack 1 performs a compression motion leftward, the first transmission mechanism 2 rotates clockwise, the second transmission mechanism 3 rotates counterclockwise, and the fourth transmission mechanism 7 rotates clockwise, so as to drive the central shaft five 801 to move downward along an arc concentric with the central shaft four 701 of the fourth transmission mechanism 7, and disengage from the flywheel 5. The flywheel 5 rotates by means of meshing transmission with the bull gear three 403. Because the third gearwheel 403 rotates clockwise, the flywheel 5 is driven to rotate counterclockwise.

As shown in fig. 8, when the rack 1 performs a stretching motion to the right, the first transmission mechanism 2 rotates counterclockwise, the second transmission mechanism 3 rotates clockwise, and the fourth transmission mechanism 7 rotates counterclockwise, so as to drive the central shaft five 801 to move upward along an arc concentric with the central shaft four 701 of the fourth transmission mechanism 7, and then the bull gear five 803 is engaged with the flywheel 5, and the flywheel 5 rotates by virtue of the engagement transmission of the bull gear five 803, because the bull gear five 803 rotates clockwise, and then the flywheel 5 rotates counterclockwise. And the third gearwheel 403 is disengaged from the flywheel 5, so that no transmission is generated to the flywheel 5.

Claims

1. A gear rack inertia containing device with a flywheel rotating in one direction is characterized in that: comprises a rack (1), a first transmission mechanism (2), a second transmission mechanism (3), a third transmission mechanism (4), a flywheel (5) and a shell (6), the first transmission mechanism (2) comprises a pinion gear I (202) and a bull gear I (203) which share a central shaft I (201), the second transmission mechanism (3) comprises a second small gear (302) and a second large gear (303) which share a second central shaft (301), the third transmission mechanism (4) comprises a pinion gear III (402) and a bull gear III (403) which share a central shaft III (401), the third central shaft (401) moves along a section of circular arc which is concentric with the second central shaft (301), the rack (1) is meshed with a first pinion (202), the first bull gear (203) is meshed with a second pinion (302), the second gearwheel (303) is meshed with the third pinion (402), and the flywheel (5) is meshed with or separated from the third gearwheel (403) along with the movement of the third gearwheel;

still include fourth drive mechanism (7) and fifth drive mechanism (8), fourth drive mechanism (7) are including the pinion four (702) and the gear wheel four (703) of total center axle four (701), fifth drive mechanism (8) are including the pinion five (802) and the gear wheel five (803) of total center axle five (801), pinion four (702) and gear wheel two (303) meshing, center axle five (801) move along one section circular arc with center axle four (701) concentric circles, gear wheel four (703) and pinion five (802) meshing, flywheel (5) mesh with it or separate along with the removal of gear wheel five (803).

2. The gear rack inertia device for the unidirectional rotation of the flywheel of claim 1, wherein: the diameter of the first gearwheel (203) is larger than that of the second gearwheel (303).

3. The gear rack inertia device for the unidirectional rotation of the flywheel of claim 2, wherein: the diameter of the second gearwheel (303) is larger than that of the third gearwheel (403).

4. The gear rack inertia device for the unidirectional rotation of the flywheel of claim 3, wherein: the diameter of the flywheel (5) is larger than that of the bull gear III (403) and smaller than that of the bull gear II (303).

5. The gear rack inertia device for the unidirectional rotation of the flywheel of claim 1, wherein: the rack (1) is arranged at a rack groove of the shell (6) and moves horizontally.

6. The gear rack inertia device for the unidirectional rotation of the flywheel of claim 1, wherein: when the third transmission mechanism (4) rotates anticlockwise, the gearwheel III (403) is disengaged from the flywheel (5), and when the third transmission mechanism (4) rotates clockwise, the gearwheel III (403) is engaged with the flywheel (5).

7. The gear rack inertia device for the unidirectional rotation of the flywheel of claim 1, wherein: when the fourth transmission mechanism (7) rotates clockwise, the third transmission mechanism (4) rotates clockwise, the bull gear five (803) is separated from the flywheel (5), and the bull gear three (403) is meshed with the flywheel (5).

8. The gear rack inertia device for the unidirectional rotation of the flywheel of claim 1, wherein: when the fourth transmission mechanism (7) rotates anticlockwise, the third transmission mechanism (4) rotates anticlockwise, the bull gear five (803) is meshed with the flywheel (5), and the bull gear three (403) is separated from the flywheel (5).

9. The gear rack inertia device for the unidirectional rotation of the flywheel of claim 1, wherein: the rack (1), the first transmission mechanism (2), the second transmission mechanism (3), the third transmission mechanism (4), the flywheel (5), the fourth transmission mechanism (7) and the fifth transmission mechanism (8) are all made of the same material.