CN217301401U

CN217301401U - Magnetic energy vehicle shock absorber

Info

Publication number: CN217301401U
Application number: CN202221040643.5U
Authority: CN
Inventors: 纪晓东
Original assignee: Xintai Wuda Electronics Co Ltd
Current assignee: Xintai Wuda Electronics Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-26
Anticipated expiration: 2032-04-29

Abstract

A magnetic energy vehicle shock absorber comprises a linear motor, an axle lifting ring is installed at the bottom of a cylinder barrel of the linear motor, a bottom ring seat is fixedly installed on the periphery of the cylinder barrel on the upper side of the axle lifting ring, a gear ring is installed in the bottom ring seat, the gear ring is sleeved on the periphery of the cylinder barrel, a plurality of driven gears which are circumferentially arranged are further installed in the bottom ring seat, and the driven gears are meshed with the gear ring. Constitute by linear electric motor and damping spring, linear electric motor can replace traditional pneumatic cylinder and play buffering and connection effect, damping spring's spring holder also can be at driving motor's power input and ring gear, driven gear, realize vertical lift under the transmission of screw and screw rod, adjustment damping spring initial installation length and pretightning force, thereby can adapt to the road conditions of various differences, corresponding adjustment vehicle chassis ground clearance, compromise the motility, travelling comfort and trafficability characteristic, can also realize the recovery of electric energy through linear electric motor's buffering, play the electric energy of practicing thrift, but energy cyclic utilization's advantage.

Description

Magnetic energy vehicle shock absorber

Technical Field

The utility model belongs to the technical field of damping device technique and specifically relates to a magnetic energy vehicle bumper shock absorber.

Background

In order to quickly attenuate the vibration of a frame and a vehicle body and improve the smoothness and comfort of the running of an automobile, a shock absorber is generally arranged on an automobile suspension system, the existing shock absorber generally adopts a hydraulic cylinder and a spring to be matched, and the elastic energy of the spring is converted into heat energy by utilizing fluid to optimize the motion convergence of the automobile, so that the shock brought by the road surface is eliminated, the running stability is improved, the comfort and the stability of a driver are provided, the working condition of the shock absorber directly influences the running stability of the automobile and the service life of other parts, and the shock absorber is required to be in a good working state frequently.

The spring mounting position on the existing shock absorber is mostly fixed and unchangeable, namely the initial compression pretightening force of the shock absorber spring is relatively unchangeable, the road on which the vehicle runs has great variability, the pretightening force requirements on the shock absorber spring are different, and how to enable the shock absorber spring to adjust the corresponding pretightening force according to different road conditions is a problem to be solved urgently.

Disclosure of Invention

A magnetic energy vehicle bumper shock absorber, damping spring's spring holder can carry out vertical lift under driving motor's drive to the realization is to the regulation of damping spring initial installation length and pretightning force, with the road conditions that adapt to various differences, has solved the problem among the prior art.

The utility model provides a technical scheme that its technical problem adopted is: the utility model relates to a magnetic energy vehicle shock absorber, which comprises a linear motor, an axle ring is arranged at the bottom of a cylinder barrel of the linear motor, a bottom ring seat is fixedly arranged at the periphery of the cylinder barrel at the upper side of the axle ring, a gear ring is arranged in the bottom ring seat, the gear ring is sleeved at the periphery of the cylinder barrel, a plurality of driven gears which are circumferentially arranged are also arranged in the bottom ring seat, the driven gears are meshed with the gear ring, a screw is arranged at the axis position of each driven gear, a vertically arranged screw is arranged in the screw in a matching way, a spring seat is arranged at one end of the screw, which penetrates out of the upper side of the bottom ring seat, the spring seat is positioned at the periphery of the cylinder barrel, a damping spring is arranged on the spring seat, the damping spring is sleeved at the periphery of the cylinder barrel of the linear motor, a piston rod of the linear motor and the top end of the damping spring are both arranged at the bottom of a vehicle frame, a driving gear meshed with the gear ring is also arranged in the bottom ring seat, and a driving motor is arranged on the lower side of the bottom ring seat, and an output shaft of the driving motor is connected with a rotating shaft of the driving gear. The damping generator is arranged between a cylinder barrel and a piston rod of the linear motor and comprises a DC-DC converter, a battery pack, a first one-way diode and a second one-way diode, wherein a permanent magnet and a rotor magnetic pole are arranged on the piston rod of the linear motor, the linear motor and the DC-DC converter form a loop through a first circuit and a second circuit, the first one-way diode connected with the DC-DC converter in parallel is arranged between the first circuit and the second circuit, the second one-way diode is arranged on the second circuit, and a third circuit is connected between the DC-DC converter and the battery pack. The periphery of the cylinder barrel of the linear motor is provided with a protruding rib arranged circumferentially, the protruding rib is arranged along the length direction of the linear motor, and a guide groove matched with the protruding rib is formed in the inner circumferential surface of the spring seat. And a distance sensor is installed at the bottom of the spring seat and is connected with the driving motor through a control circuit. A worm gear speed reducer is installed between the driving motor and the bottom ring seat, an output shaft of the driving motor is connected with an input shaft of the worm gear speed reducer, and an output shaft of the worm gear speed reducer is connected with a rotating shaft of the driving gear.

The utility model has the advantages of: a magnetic energy vehicle bumper shock absorber, constitute by linear electric motor and damping spring, linear electric motor can replace traditional pneumatic cylinder to play buffering and connection effect, damping spring's spring holder also can be at driving motor's power input and ring gear, driven gear, realize vertical lift under the transmission of screw and screw rod, adjustment damping spring initial installation length and pretightning force, thereby can adapt to the road conditions of various differences, corresponding adjustment vehicle chassis ground clearance, the mobility has been taken into account, travelling comfort and trafficability characteristic, the recovery of electric energy can also be realized through linear electric motor's buffering, play the saving electric energy, energy cyclic utilization's advantage.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a sectional view taken along line B-B of FIG. 1;

FIG. 4 is a circuit schematic of a damped generator;

fig. 5 is a schematic view of a structure in which the interior of the linear motor is cut away.

Detailed Description

A magnetic energy vehicle bumper shock absorber, as shown in figure 1 and figure 2, including linear electric motor 1, relative movement can realize corresponding buffer function between linear electric motor 1's the cylinder and the piston rod, axletree rings 2 are installed to linear electric motor 1's cylinder bottom, axletree rings 2 can realize being connected with the axletree among the linkage, realize the buffering between tire and the automobile body when playing necessary connection effect.

A bottom ring seat 3 is fixedly arranged on the periphery of the cylinder barrel on the upper side of the axle lifting ring 2, as shown in fig. 2, a gear ring 4 is arranged in the bottom ring seat 3, the gear ring 4 is sleeved on the periphery of the cylinder barrel, a plurality of driven gears 5 which are circumferentially arranged are further arranged in the bottom ring seat 3, the driven gears 5 are meshed with the gear ring 4, and all the driven gears 5 can be synchronously driven to rotate when the gear ring 4 rotates. The axle center position department of each driven gear 5 all is equipped with screw 6, and screw 6 fits in installs the screw rod 7 of vertical setting, and when driven gear 5 rotated, screw rod 7 can carry out vertical lift relative driven gear 5, and spring holder 8 is installed to the one end that 3 upsides of bottom ring seat were worn out to screw rod 7, and spring holder 8 is located the cylinder periphery, installs damping spring 9 on spring holder 8, damping spring 9 suit is in linear electric motor 1's cylinder periphery, and linear electric motor 1's piston rod and damping spring 9's top all are installed in the frame bottom. When the spring seat 8 is lifted vertically, the damping spring 9 can be correspondingly stretched and compressed, so that the initial length and the pre-tightening force of the damping spring 9 can be adjusted.

For realizing the power input of the vertical lift of spring holder 8, still install the driving gear 10 with ring gear 4 engaged with in the bottom ring seat 3, driving motor 11 is installed to bottom ring seat 3 downside, and driving motor 11's output shaft is connected with the pivot of driving gear 10, can realize the vertical lift of spring holder 8 through driving motor 11's positive and negative commentaries on classics.

Further, a damping generator is installed between the cylinder and the piston rod of the linear motor 1, and can recover electric energy when the linear motor 1 performs a buffering function, and the damping generator includes a DC-DC converter 12, a battery pack 13, a first one-way diode 14 and a second one-way diode 15, wherein the piston rod of the linear motor 1 is installed with a permanent magnet 23 and a rotor magnetic pole 24. As shown in fig. 4, the linear motor 1 forms a loop with the DC-DC converter 12 through a first line 16 and a second line 17, a first unidirectional diode 14 connected in parallel with the DC-DC converter 12 is provided between the first line 16 and the second line 17, a second unidirectional diode 15 is provided on the second line 17, and a third line 18 is connected between the DC-DC converter 12 and the battery pack 13. When the cylinder barrel and the piston rod of the linear motor 1 move relatively to form damping buffering, the permanent magnet 23 and the rotor magnetic pole 24 can cut a magnetic induction line to move, so that current is generated, electric energy is stored in the battery pack 13 through the DC-DC converter 12, unidirectional damping of the linear motor 1 is controlled by unidirectional conductivity of the diode, and the adjustment of a spring damping coefficient is realized. Compared with the traditional buffer cylinder, the linear motor 1 has no liquid, gas and other pressure transmission media, and has no sealing elements such as rubber rings, so that the service life is longer.

Further, in order to avoid the relative rotation of the spring seat 8 when the spring seat 8 vertically ascends and descends along the cylinder of the linear motor 1 and the normal buffering of the damping spring 9 is ensured when the vehicle travels or turns, as shown in fig. 3, the cylinder periphery of the linear motor 1 is provided with a protruding rib 19 arranged circumferentially, the protruding rib 19 is arranged along the length direction of the linear motor 1, the inner circumferential surface of the spring seat 8 is provided with a guide groove 20 matched with the protruding rib 19, and under the action of the guide groove 20 and the protruding rib 19, the spring seat 8 can vertically ascend and descend and can also avoid the rotation of the spring seat 8.

Further, in order to monitor and control the gap between the vehicle chassis and the ground in real time, a distance sensor 21 is installed at the bottom of the spring seat 8, the distance sensor 21 is connected with the driving motor 11 through a control line, the distance sensor 21 can detect the distance between the spring seat 8 and the ground, and the real-time height position of the spring seat 8 can be changed by controlling the starting and stopping of the driving motor 11 according to different road conditions.

Further, in order to ensure that the spring seat 8 can be maintained at a set height position after adjustment, and does not fall due to external force buffering, and the like, a worm and gear speed reducer 22 is installed between the driving motor 11 and the bottom ring seat 3, an output shaft of the driving motor 11 is connected with an input shaft of the worm and gear speed reducer 22, an output shaft of the worm and gear speed reducer 22 is connected with a rotating shaft of the driving gear 10, the worm and gear speed reducer 22 can realize a self-locking function, after the driving motor 11 stops power input, the worm and gear speed reducer 22 can lock the driving gear 10, the screw 7 cannot vertically move, and the spring seat 8 is maintained at the set height position.

Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.

Claims

1. A magnetic energy vehicle shock absorber is characterized in that: comprises a linear motor (1), an axle lifting ring (2) is installed at the bottom of a cylinder barrel of the linear motor (1), a bottom ring seat (3) is fixedly installed at the periphery of the cylinder barrel at the upper side of the axle lifting ring (2), a gear ring (4) is installed in the bottom ring seat (3), the gear ring (4) is sleeved at the periphery of the cylinder barrel, a plurality of driven gears (5) which are circumferentially arranged are further installed in the bottom ring seat (3), the driven gears (5) are meshed with the gear ring (4), a screw nut (6) is arranged at the axis position of each driven gear (5), a vertically arranged screw rod (7) is installed in the screw nut (6) in a matching manner, a spring seat (8) is installed at one end of the screw rod (7) penetrating through the upper side of the bottom ring seat (3), the spring seat (8) is positioned at the periphery of the cylinder barrel, a damping spring (9) is installed on the spring seat (8), and the damping spring (9) is sleeved at the periphery of the cylinder barrel of the linear motor (1), the piston rod of linear electric motor (1) and damping spring's (9) top are all installed in the frame bottom, still install in bottom ring seat (3) with ring gear (4) engaged with driving gear (10), driving motor (11) are installed to bottom ring seat (3) downside, and the output shaft of driving motor (11) is connected with the pivot of driving gear (10).

2. A magnetic energy vehicle shock absorber according to claim 1, wherein: the damping generator is installed between a cylinder barrel and a piston rod of the linear motor (1), and comprises a DC-DC converter (12), a battery pack (13), a first one-way diode (14) and a second one-way diode (15), wherein a permanent magnet (23) and a rotor magnetic pole (24) are installed on the piston rod of the linear motor (1), the linear motor (1) forms a loop with the DC-DC converter (12) through a first line (16) and a second line (17), the first one-way diode (14) connected with the DC-DC converter (12) in parallel is arranged between the first line (16) and the second line (17), the second one-way diode (15) is installed on the second line (17), and a third line (18) is connected between the DC-DC converter (12) and the battery pack (13).

3. A magnetic energy vehicle shock absorber according to claim 1, wherein: the periphery of the cylinder barrel of the linear motor (1) is provided with a rib (19) which is circumferentially arranged, the rib (19) is arranged along the length direction of the linear motor (1), and a guide groove (20) matched with the rib (19) is formed in the inner circumferential surface of the spring seat (8).

4. A magnetic energy vehicle shock absorber according to claim 1, wherein: and a distance sensor (21) is installed at the bottom of the spring seat (8), and the distance sensor (21) is connected with the driving motor (11) through a control circuit.

5. A magnetic energy vehicle shock absorber according to claim 1, wherein: a worm gear speed reducer (22) is installed between the driving motor (11) and the bottom ring seat (3), an output shaft of the driving motor (11) is connected with an input shaft of the worm gear speed reducer (22), and an output shaft of the worm gear speed reducer (22) is connected with a rotating shaft of the driving gear (10).