CN203142939U - Limiting devices of motor tricycle torsion bar type front suspension device - Google Patents
Limiting devices of motor tricycle torsion bar type front suspension device Download PDFInfo
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- CN203142939U CN203142939U CN 201320151700 CN201320151700U CN203142939U CN 203142939 U CN203142939 U CN 203142939U CN 201320151700 CN201320151700 CN 201320151700 CN 201320151700 U CN201320151700 U CN 201320151700U CN 203142939 U CN203142939 U CN 203142939U
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- torsion bar
- bar spring
- limit base
- inhibiting device
- rocking arm
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Abstract
The utility model discloses limiting devices of a motor tricycle torsion bar type front suspension device. A front fork is provided with two symmetrical back supporting pipes which extend downwards and bend backwards. A torsion bar spring absorber is transversely arranged between the lower ends of the two back supporting pipes. The left end and the right end of a torsion bar spring of the torsion bar spring absorber are supported in through holes formed in the lower end of the left supporting pipe and the lower end of the right supporting pipe respectively in an empty sleeved mode, and are respectively, circumferentially and fixedly connected with a rocker arm. The two rocker arms parallelly extend forwards for the installing of a front wheel, and the two back supporting pipes are respectively provided with a limiting device for limiting the ascending position of the rocker arms. The limiting devices comprise limiting bases and buffering rubber heads, wherein the limiting bases are fixedly connected to backward bending parts of the back supporting pipes and extend downwards above the rocker arms, and the buffering rubber heads are arranged at the lower ends of the limiting bases. The ascending position, bearing heavy load, of the rocker arms can be limited, the occurrence that the torsion bar spring absorber is damaged due to the fact that the torque transmitted by the rocker arms exceeds the deformation value of the elastic torque of the torsion bar spring absorber caused by the excessive ascending of the rocker arms is avoided.
Description
Technical field
The utility model relates to tricycle front-mounting apparatus, particularly the inhibiting device of a kind of motor-tricycle torsion bar type forward mounting.
Background technology
Shock absorber before front fork is provided with damper spring left and right is installed normally in the suspension of motor-tricycle front-wheel, front-wheel is before left and right between the shock absorber, the lower end of shock absorber before being connected by axle, shock absorber becomes the Flexible Connector between front-wheel and the car body before making thus.Before shock absorber with the weight of front fork supporting body, absorb road to the impact of vehicle, damped vibration, the relevant parts of buffering vehicle stressed can prolong the service life of vehicle, and realizes the traveling comfort that drives and the stability of manipulation.Present preceding shock absorber is commonly used roughly three classes: the one, and the preceding shock absorber of undamped device, its structure be with the compression spring housing on the shock absorber post, be contained in the lump then in the shock absorber tube of front fork, by compression spring stretching under the external force impact effect, absorb shock and vibration.The 2nd, shock absorber before the inner spring formula, its structure is that the compression spring is contained in the interior damper cylinder, in the damper cylinder piston rod is set outside, interior damper cylinder inserts in the outer damper cylinder, piston ring on the piston rod props up the compression spring, be provided with check valve between interior damper cylinder and the outer damper cylinder, piston rod is provided with the aperture that damping oil is passed through, and when making outer damper cylinder up but front-wheel is hit, the damping oil in the shock absorber upwards flows through the aperture on check valve and the piston rod, when dumping force is little, outer damper cylinder continues up, makes the compression of compression spring, and the space in outer damper cylinder more and more hour, damping increases, and can prevent that outer damper cylinder and interior damper cylinder from clashing into mutually; When outer damper cylinder because of the restoring force of compression spring when descending, damping oil forms big damping because closed check valve can only flow through from the aperture on the piston rod, can decay and compress the vibration of spring.The 3rd, shock absorber before the outer spring formula, shock absorber does not have much differences in essence before outer spring formula shock absorber and the inner spring formula, just compresses spring and is arranged on the shock absorber outside.Adopt above-mentioned three class shock absorbers to be installed in strut member and the front-wheel steering control piece that constitutes bearing body on the front fork, therefore to as the having relatively high expectations of the compression spring of vibration damping, if the compression spring is softer, its effectiveness in vibration suppression is better, it is comparatively comfortable that driving is felt, but impact resistance is relatively poor; If the compression spring is harder, its impact resistance strengthens, but effectiveness in vibration suppression is good inadequately, and the traveling comfort of driving is relatively poor again.And these shock absorbers all belong to the straight barrel type shock absorber, and it is relative with bearing capacity relatively poor to be installed on the front fork its crashproof ability, can not satisfy usually the needs based on the motor-tricycle of loading.In addition, publication number be CN201647036U's " damping assembly before a kind of motor-tricycle of regulating outer damping spring precompressed compression " a kind of technical scheme of preceding shock-damping structure of motor bike is disclosed, direction post and last, lower connecting plate is connected, two symmetrical front fork tops are cylinder, the bottom is prone pipe, top cylinder and bottom pipe flush fit, the cylinder on two front fork tops and upper junction plate and lower connecting plate are connected, matching part at front fork top cylinder and bottom pipe is provided with ring stiffener, and the lower end of two front forks is connected with an end of two rocking arms respectively.Two pairs can be regulated the upper end of the bumper of outer damping spring precompressed compression, be connected with the upper branching holder triangular in shape that is located at pipe knee, front fork bottom respectively, the lower end is connected with the lower support seat, and the lower support seat is captiveed joint with front-wheel assembling cover, and front-wheel assembling cover is captiveed joint with the other end of rocking arm.The bottom of the bumper of damping spring precompressed compression is provided with a regulating ring respectively outside two pairs can be regulated, and the stepped sawtooth of regulating ring lower end and the corresponding engaging of the limiting stopper of bumper bottom are close to the lower end of outer damping spring in the upper end of regulating ring.The bumper of damping assembly remains the straight barrel type shock absorber before this motor-tricycle, its spring that adopts remains the compression spring, and the preceding damping assembly of this structure, the strut member of bearing body remains outer damping spring, therefore identical with first three class shock absorber, the same problem of having relatively high expectations that exists the compression spring.And when adopting the straight barrel type shock absorber, tare relies on the compression spring to support, and this compression spring is all harder relatively, and the frequent vibration of compression spring under external impacts is obvious, so effectiveness in vibration suppression is also just relatively poor relatively.And also relative complex of the structure of this straight barrel type shock absorber, to having relatively high expectations of compression spring, the cost of manufacture of shock absorber is also higher relatively, also has the relatively poor relatively problem of bearing capacity simultaneously.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, and the inhibiting device of a kind of motor-tricycle torsion bar type forward mounting is provided.It is arranged on the front fork rear supporting tube of torsion bar type forward mounting, be positioned at the rocking arm top of circumferentially fixing on the torsion bar spring shock absorber of installing the rear supporting tube lower end, can bear heavily loaded upward position to rocking arm carries out spacing, avoid rocking arm up excessively, the moment of torsion that causes rocking arm to transmit surpasses the deflection of the elastic torsion of torsion bar spring shock absorber, causes the torsion bar spring shock absorber to damage.
The purpose of this utility model is achieved in that and comprises front fork, described front fork has downward extension and the recurvate rear supporting tube of two symmetries, the left side of described front fork, horizontally set one torsion bar spring shock absorber between the right back support tube lower end, the two ends, the torsion bar spring left and right sides of torsion bar spring shock absorber empty cover respectively are supported on a left side, in the through hole that right back support tube lower end is provided with, and circumferential captive joint one rocking arm separately, the parallel extension forward of two rocking arms is used for installing the suspension front-wheel, a described left side, fixedly install the inhibiting device that is useful on restriction rocking arm upward position on the right back support tube respectively, described inhibiting device comprises limit base and buffering Rubber end, described limit base is fixedly connected on rear supporting tube curve backward, and be positioned at the rocking arm top and extend downwards, the lower end of limit base arranges the yielding rubber head.
The yielding rubber head that described limit base lower end arranges and the spacing between the rocking arm are less than the maximum flexibility deflection of torsion bar spring shock absorber.
Described Rubber end for buffering is cylinder, and its lower surface is sphere.
Described limit base lower end is provided with mounting hole, and yielding rubber head upper end is provided with inserting column, and is fixing in the mounting hole of the inserting column insertion limit base lower end of yielding rubber head.
The downward elongated end of limit base is facing to the middle part of rocking arm.
Described limit base is connected on the rear supporting tube by welding or bolt.
Owing to adopted such scheme, horizontally set one torsion bar spring shock absorber between the left and right rear supporting tube lower end of front fork, the two ends, the torsion bar spring left and right sides of torsion bar spring shock absorber empty cover respectively are supported in the through hole that left and right rear supporting tube lower end is provided with, and circumferential captive joint one rocking arm separately, the parallel extension forward of two rocking arms is used for installing the suspension front-wheel, and fixedly installs the inhibiting device that is useful on restriction rocking arm upward position on the left and right rear supporting tube respectively.Limit the upward position of rocking arm when front-wheel is subjected to impact shock by the inhibiting device that is used for restriction rocking arm upward position that arranges on the rear supporting tube, limit the elastic torsion amount of the torsion bar spring of torsion bar spring shock absorber by the restriction to rocking arm of this inhibiting device, make rocking arm when bearing heavy duty, prop up rocking arm, the restriction rocking arm transmits excessive torque to the torsion bar spring shock absorber, can guarantee that the moment of torsion of rocking arm transmission in the elastic deformation area of the torsion bar spring of torsion bar spring shock absorber, prevents that torsion bar spring from entering the plastically deforming area under external force and causing elastic failure.
The inhibiting device that is used for restriction rocking arm upward position comprises limit base and buffering Rubber end, and described limit base is fixedly connected on rear supporting tube curve backward, and extends downwards above being positioned at rocking arm, and the lower end of limit base arranges the yielding rubber head.By the yielding rubber head that arranges, in the time of can avoiding rocking arm up with limit base directly very stiff and demanding the bump taken place, make rocking arm both when contacting, impact is cushioned, and forms soft contact.Can alleviate velocity of impact like this, the damage to parts that can also avoid hard hit to hit causing.
Be provided with mounting hole in the limit base lower end, yielding rubber head upper end is provided with inserting column, and is fixing in the mounting hole of the inserting column insertion limit base lower end of yielding rubber head.Can make the torsion bar type forward mounting of bearing different heavy duties so as required, regulate spacing height by the yielding rubber head that replacing varies in size, can not cause performance failure because excessively reversing with the torsion bar spring that guarantees the torsion bar spring shock absorber.Also be convenient to simultaneously the repair and replacement after the yielding rubber head wears out.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to scheme drawing;
Fig. 3 is the scheme drawing of torsion bar spring shock absorber of the present utility model;
Fig. 4 is the view of the utility model under impact shock.
In the accompanying drawing, 1 is the direction post, and 2 is rear supporting tube, and 3 is erection support, 4 is torsion bar spring, and 4a is splined end, and 4b is square toes, and 4c is annular groove, 5 is rocking arm, and 6 is front wheel spindle, and 7 is front-wheel, 8 is limit base, and 8a is mounting hole, and 9 is Rubber end, 10 is torsion bar central authorities anchor fittings, and 12 is the torsion bar spring shock absorber, and 13 is bolt, 14 is supporting sleeve, and 14a is flange, and 17 is front damper.
The specific embodiment
Referring to Fig. 1 to Fig. 4, the inhibiting device of a kind of motor-tricycle torsion bar type forward mounting, comprise front fork, described front fork has downward extension and the recurvate rear supporting tube 2 of two symmetries, two rear supporting tubes, 2 upper ends are fixedly connected on direction post 1 bottom, horizontally set one torsion bar spring shock absorber 12 between left and right rear supporting tube 2 lower ends of described front fork.Described torsion bar spring shock absorber 12 is made up of a torsion bar central authorities anchor fitting 10, two torsion bar spring 4 and two supporting sleeves 14.The axial two ends that described two supporting sleeves 14 are separately fixed at torsion bar central authorities anchor fitting 10 are fixedly connected into a crosswise fixed strut member.Two supporting sleeves 14 are connected as a single entity with central anchor fitting 10 welding of torsion bar.The axial two ends of crosswise fixed strut member are provided with flange 14a, captive joint with the rear supporting tube 2 that is positioned at crosswise fixed strut member two ends.The central anchor fitting 10 of described torsion bar is provided with the circumferential fixed orifice of axial perforation, described two torsion bar spring 4 are placed in respectively in two supporting sleeves 14, the fixed end of two torsion bar spring 4 inserts from the circumferential fixed orifice two ends of torsion bar central authorities anchor fitting 10 in opposite directions, forms with central the circumferential of anchor fitting 10 of torsion bar to captive joint.The circumferential fixed orifice that the central anchor fitting 10 of the described torsion bar of present embodiment arranges is square hole, the fixed end of described torsion bar spring 4 is made as the square toes 4b corresponding with square hole, form circumferential captive joint in the square hole of the square toes 4b insertion torsion bar central authorities anchor fitting 10 of torsion bar spring, prevent that the fixed end of torsion bar spring 4 from rotating.The free end of described two torsion bar spring 4 stretches out supporting sleeve 14 outward, is used for circumferential captive joint Rocker arm 5.The free end of the torsion bar spring 4 of present embodiment is splined end 4a, and the splined hole that arranges with Rocker arm 5 is connected, and this splined end 4a is provided with the annular groove 4c with the Rocker arm 5 axial location, by dowel bolt 16 or alignment pin location.The two ends, torsion bar spring 4 left and right sides of torsion bar spring shock absorber 12 empty cover respectively are supported in the through hole that left and right rear supporting tube 2 lower end erection supports 3 are provided with, and circumferential captive joint one Rocker arm 5 separately, the parallel extension forward of two Rocker arm 5s is used for installing hangs front-wheel 7, and front-wheel 7 is by the front end of front wheel spindle 6 supports with Rocker arm 5.Fixedly install the inhibiting device that is useful on restriction rocking arm upward position on the described left and right rear supporting tube 2 respectively.Described inhibiting device comprises limit base 8 and buffering Rubber end 9, and described limit base 8 is fixedly connected on rear supporting tube 2 curve backward, and is positioned at the extension downwards of Rocker arm 5 top, and the downward elongated end of limit base 8 is facing to the middle part of Rocker arm 5.Described limit base 8 is connected on the rear supporting tube 2 by welding or bolt.The lower end of limit base 8 arranges yielding rubber head 9, and this yielding rubber head 9 is cylinder, and its lower surface is sphere.Described limit base 8 lower ends are provided with mounting hole 8a, and yielding rubber head 9 upper ends are provided with inserting column, and are fixing among the mounting hole 8a of inserting column insertion limit base 8 lower ends of yielding rubber head 9, both fastening by the distortion expansion formation of rubber, can also be aided with lining cement and cement.The yielding rubber head 9 that described limit base 8 lower ends arrange and the spacing between the Rocker arm 5 are less than the maximum flexibility deflection of torsion bar spring shock absorber 12.Damper 17 is installed between the curve of Rocker arm 5 front end and rear supporting tube 2.Described limit base 8 tops are provided with the hinge hole of damper 17, and damper 17 upper ends are articulated in hinge hole on the limit base 8 by bolt 13, and damper 17 lower ends are hinged by front wheel spindle 6 and Rocker arm 5 front end.
The inhibiting device of the utility model motor-tricycle torsion bar type forward mounting, when the motor-tricycle of employing torsion bar type front-end equipment travels, front-wheel produces bob and drives rocking arm and fluctuate under impact shock; rocking arm is converted to moment of torsion with vibratory impulse power and passes to the torsion bar spring shock absorber, and the twisting of the torsion bar spring by the torsion bar spring shock absorber realizes vibration damping.Adopt inhibiting device of the present utility model to carry out spacing to the up amount of rocking arm.Can limit the elastic torsion amount of the torsion bar spring of torsion bar spring shock absorber by the restriction to rocking arm of this inhibiting device, make rocking arm when bearing heavy duty, prop up rocking arm, the restriction rocking arm transmits excessive torque to the torsion bar spring shock absorber, can guarantee that the moment of torsion of rocking arm transmission in the elastic deformation area of the torsion bar spring of torsion bar spring shock absorber, prevents that torsion bar spring from entering the plastically deforming area under external force and causing elastic failure.When heavy duty was born in forward mounting, rocking arm upwards shook and is subject to inhibiting device, and inhibiting device props up rocking arm, and reversing of torsion bar spring remains on the elastic deformation area, thereby the assurance forward mounting can be born bigger heavy duty.
Claims (6)
1. the inhibiting device of motor-tricycle torsion bar type forward mounting, comprise front fork, it is characterized in that: described front fork has downward extension and the recurvate rear supporting tube of two symmetries, the left side of described front fork, horizontally set one torsion bar spring shock absorber between the right back support tube lower end, the two ends, the torsion bar spring left and right sides of torsion bar spring shock absorber empty cover respectively are supported on a left side, in the through hole that right back support tube lower end is provided with, and circumferential captive joint one rocking arm separately, the parallel extension forward of two rocking arms is used for installing the suspension front-wheel, a described left side, fixedly install the inhibiting device that is useful on restriction rocking arm upward position on the right back support tube respectively, described inhibiting device comprises limit base and buffering Rubber end, described limit base is fixedly connected on rear supporting tube curve backward, and be positioned at the rocking arm top and extend downwards, the lower end of limit base arranges the yielding rubber head.
2. the inhibiting device of motor-tricycle torsion bar type according to claim 1 forward mounting is characterized in that: the yielding rubber head that described limit base lower end arranges and the spacing between the rocking arm are less than the maximum flexibility deflection of torsion bar spring shock absorber.
3. the inhibiting device of motor-tricycle torsion bar type according to claim 1 and 2 forward mounting is characterized in that: described Rubber end for buffering is cylinder, and its lower surface is sphere.
4. the inhibiting device of motor-tricycle torsion bar type according to claim 1 and 2 forward mounting, it is characterized in that: described limit base lower end is provided with mounting hole, yielding rubber head upper end is provided with inserting column, and is fixing in the mounting hole of the inserting column insertion limit base lower end of yielding rubber head.
5. the inhibiting device of motor-tricycle torsion bar type according to claim 1 forward mounting is characterized in that: the downward elongated end of limit base is facing to the middle part of rocking arm.
6. the inhibiting device of motor-tricycle torsion bar type according to claim 1 forward mounting is characterized in that: described limit base is connected on the rear supporting tube by welding or bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320151700 CN203142939U (en) | 2013-03-29 | 2013-03-29 | Limiting devices of motor tricycle torsion bar type front suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320151700 CN203142939U (en) | 2013-03-29 | 2013-03-29 | Limiting devices of motor tricycle torsion bar type front suspension device |
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| Publication Number | Publication Date |
|---|---|
| CN203142939U true CN203142939U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320151700 Expired - Fee Related CN203142939U (en) | 2013-03-29 | 2013-03-29 | Limiting devices of motor tricycle torsion bar type front suspension device |
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| Country | Link |
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| CN (1) | CN203142939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018038770A1 (en) * | 2016-08-22 | 2018-03-01 | Big Cat Human Powered Vehicles, Llc | Suspended spindle assembly for recumbent tricycles |
-
2013
- 2013-03-29 CN CN 201320151700 patent/CN203142939U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018038770A1 (en) * | 2016-08-22 | 2018-03-01 | Big Cat Human Powered Vehicles, Llc | Suspended spindle assembly for recumbent tricycles |
| US9981711B2 (en) | 2016-08-22 | 2018-05-29 | Big Cat Human Powered Vehicles, Llc | Suspended spindle assembly for recumbent tricyles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20210329 |