CN219172601U

CN219172601U - Tightness adjusting mechanism for motor driving belt

Info

Publication number: CN219172601U
Application number: CN202222575294.3U
Authority: CN
Inventors: 曾海军; 倪春蕾; 骆路宝; 唐国静
Original assignee: Chongqing Cili Technology Co ltd
Current assignee: Chongqing Cili Technology Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-06-13
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses a motor transmission belt tightness adjusting mechanism in the technical field of motorcycle parts, which comprises a motor mounting suspension and a motor, wherein the motor mounting suspension comprises a bottom connecting section and an inclined connecting section, motor mounting lugs are arranged on the inclined connecting section, and two sides of the upper end of the motor are connected to the motor mounting lugs through rotating shaft bolts; two sides of the lower end of the motor are respectively provided with a motor lower mounting head, the bottom connecting section is provided with a guide groove, and the motor is fixed by screwing a lower mounting bolt into the motor lower mounting head through the guide groove; compared with the prior art, the utility model has the beneficial effects that the swinging head is directly connected to the mounting head below the motor in a penetrating way without separately arranging the cross beam penetrating the swinging head, thereby avoiding the waste of the structure, reducing the cost and simplifying the structure.

Description

Tightness adjusting mechanism for motor driving belt

Technical Field

The utility model relates to the technical field of motorcycle parts, in particular to a motor transmission belt tightness adjusting mechanism.

Background

The transmission mode of the motorcycle mainly comprises three modes of chain transmission, belt transmission and shaft transmission; the chain transmission is most common and is generally used for the fuel motor cycle, and the chain transmission has the advantages of high transmission efficiency, faster starting and accelerating, and the like, but has larger noise and needs frequent maintenance; the shaft transmission and the belt transmission are generally used for the electric motorcycle, the hub motor is integrated into the rear hub by the shaft transmission, a transmission system is omitted, the structure is simpler, the transmission efficiency is higher, the moment of inertia is larger, the operability is poorer, and the electric braking performance is poorer; the belt transmission refers to the motor which transmits power to the rear wheel through the belt, and because the material is softer, the transmission is more stable, basically has no noise, is influenced by friction force, has lower transmission efficiency than chain transmission, and particularly when the torque is high, the belt can slip, and the uneven road section is easy to damage the belt, so that the belt is only suitable for running on a flat street.

With the rapid development of society, road quality is greatly improved, and people pay more attention to noise and driving comfort, so in recent years, more and more electric motorcycles adopt belt transmission; however, the belt is easily stretched after long-time use, so that the belt is slipped or the transmission is invalid, and the tightness degree of the belt needs to be adjusted by adjusting the distance between two ends connected with the belt transmission, so that the better transmission performance is maintained; at present, the tightness degree of the belt pulley is generally adjusted by the following steps: 1. the position of the rear wheel in the front-rear direction is adjusted based on an adjusting mechanism of the frame so as to adjust the tightness degree of the belt; however, the position of the rear wheel is complicated to adjust, the adjustment needs to be carried out in a professional repair shop, the rear wheel is easy to deflect due to self-adjustment, and safety accidents are easy to occur; 2. the output end or the rear wheel of the motor is connected with a belt pulley with a plurality of stages of belt grooves, and the adjusting belt is positioned in the belt grooves with different diameters on the belt pulley so as to adjust the tightness degree of the belt; although the adjustment is simple, each stage of adjustment has a certain span, and cannot be accurately adjusted to the most proper tightness, so that the transmission performance is easily reduced or the belt abrasion is easily accelerated.

The patent document with the publication number of CN215475591U discloses a tightness adjusting structure of a motor transmission belt of a motorcycle, which comprises a cradle frame and a motor, wherein the cradle frame comprises a left cradle beam and a right cradle beam which are arranged at intervals left and right, the left cradle beam and the right cradle beam both comprise front extension sections which incline upwards and extend forwards, and the lower ends of the front extension sections are connected with rear extension sections which extend backwards; the motor is arranged on the cradle frame along the left-right direction and is positioned between the cradle left beam and the cradle right beam; the lower part of the motor is rotatably connected between the two rear extension sections through a rotating shaft, the axis of the rotating shaft is arranged along the left-right direction, and the two ends of the rotating shaft are respectively connected with the rear extension sections of the corresponding ends;

the upper portion of motor is connected respectively on two preceding extension sections through two lock bolts that bilateral symmetry set up, and lock bolt's axis sets up along controlling the direction and the head is located the outside of extension section before, lock bolt's pole portion activity pass the guide slot that runs through on the extension section before and with motor threaded connection in order to fix the motor through screwing the lock bolt, the motor with the lock bolt can slide in the guide slot in order to adjust the front and back distance of motor when the pivot rotates.

The regulation of motor is realized through guiding slot, lock nut and pivot in this document to set up a cradle crossbeam alone and worn to establish the swinging head in order to realize better regulation, the swinging crossbeam is only used for wearing to establish the swinging head, and still wears to establish the connecting block at lock bolt's pole portion, and connecting block and swinging head cooperate the accommodate motor, and the structure is complicated, causes the extravagant problem of structure, has improved the cost of manufacture.

In summary, the applicant proposes a motor drive belt slack adjustment mechanism.

Disclosure of Invention

In view of the problems of structure waste and high cost existing in the prior art, the technical scheme of the utility model provides a motor transmission belt tightness adjusting mechanism for solving the problems.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the motor transmission belt tightness adjusting mechanism comprises a motor mounting suspension and a motor, wherein the motor mounting suspension comprises a left suspension and a right suspension, the left suspension and the right suspension are in an 'angle' shape and comprise a bottom connecting section and an inclined connecting section, motor mounting lugs are downwards arranged on the inclined connecting section, and two sides of the upper end of the motor are connected to the motor mounting lugs through rotating shaft bolts; the head end of the bottom connecting section of the left suspension or the right suspension is provided with an adjusting block inwards, adjusting holes penetrating through the adjusting block are formed in the adjusting block along the front-rear direction, two sides of the lower end of the motor are respectively provided with a motor lower mounting head, the motor lower mounting head is cylindrical, the motor lower mounting head on one side where the adjusting block is located is connected with a swinging head in a penetrating way, the adjusting holes are internally threaded with adjusting bolts, the inner ends of the adjusting bolts are connected with the swinging head, the outer ends of the adjusting bolts are connected with adjusting nuts in a threaded way, the bottom connecting section is provided with guide grooves penetrating through the bottom connecting section left and right, and the motor is fixed by penetrating the lower mounting bolts through the guide grooves into the motor lower mounting head.

The upper end pivot bolt of motor is fixed, the lower extreme is through lower mounting bolt slidable fastening in the guiding groove, the swinging head cross-under is on the motor lower mounting head, pull adjusting bolt outwards through screwing up adjusting nut, adjusting bolt drives the swinging head and moves forward, the swinging head drives the motor and revolutes pivot bolt and rotate, thereby realize motor drive belt's elasticity regulation, directly be used for wearing to establish the swinging head with the motor lower mounting head, need not go to set up a crossbeam alone again and wear to establish the swinging head, the structure is simplified, the cost is reduced, the waste of structure has been avoided.

Further limited, the inclined connecting section and the bottom connecting section are integrally manufactured, the tail part of the bottom connecting section is provided with a driving wheel mounting hole, the driving wheel mounting hole is connected with a driving wheel through a penetrating shaft, and the driving wheel is in transmission connection with an output wheel of the motor through a belt or a chain; the strength is higher by being integrally manufactured.

Further limited, a half sinking groove is arranged on the bottom connecting section, the guide groove is arranged on the bottom surface of the half sinking groove, and the half sinking groove is used for accommodating the bolt head of the lower mounting bolt; the half sinking groove is arranged in the way that the bolt head of the lower mounting bolt is sunk in the half sinking groove, so that the appearance and safety can be improved, and the bolt is not easy to be damaged by external impact.

Further defined, a line connecting the position of the spindle bolt and the position of the lower mounting bolt passes through the axial center position of the output shaft of the motor.

Further limited, the upper end of the motor is provided with a motor upper mounting head, and the rotating shaft bolt penetrates through the motor mounting lug and is screwed into the motor upper mounting head to be fixed.

Compared with the prior art, the utility model has the beneficial effects that the swinging head is directly connected to the mounting head below the motor in a penetrating way without separately arranging the cross beam penetrating the swinging head, thereby avoiding the waste of the structure, reducing the cost and simplifying the structure.

Drawings

FIG. 1 is a schematic perspective view of the left side of the present utility model;

fig. 2 is a perspective view of the right side of the present utility model.

Corresponding marks in the drawings are respectively: the device comprises a 1-motor mounting suspension, a 11-inclined connecting section, a 12-bottom connecting section, a 2-motor, a 3-motor mounting lug, a 4-motor upper mounting head, a 5-rotating shaft bolt, a 6-adjusting block, a 7-motor lower mounting head, an 8-swinging head, a 9-adjusting bolt, a 10-adjusting nut, a 13-guiding groove, a 14-semi-sinking groove, a 15-lower mounting bolt, a 16-driving wheel mounting hole and a 17-driving wheel.

Detailed Description

In order that those skilled in the art will better understand the technical solution of the present utility model, reference will be made to the following drawings and examples.

Examples

As shown in fig. 1 and 2, a motor transmission belt tightness adjusting mechanism comprises a motor mounting suspension 1 for mounting a motor 2, wherein the motor mounting suspension 1 comprises a left suspension and a right suspension, the left suspension and the right suspension are in a 'angle' shape and respectively comprise a bottom connecting section 12 and an inclined connecting section 11, a motor mounting support lug 3 is downwards arranged on the inclined connecting section 11, a motor upper mounting head 4 is arranged at the upper end of the motor 2, and a rotating shaft bolt 5 penetrates through the motor mounting support lug 3 and is screwed into the motor upper mounting head 4 to be fixed; the head end of the bottom connecting section 12 of the left suspension is internally provided with an adjusting block 6, the adjusting block 6 is provided with an adjusting hole penetrating through the adjusting block 6 along the front-rear direction, two sides of the lower end of the motor 2 are respectively provided with a motor lower mounting head 7, the motor lower mounting head 7 is cylindrical, the motor lower mounting head 7 on one side of the adjusting block 6 is connected with a swinging head 8 in a penetrating way, the adjusting hole is internally connected with an adjusting bolt 9 in a threaded way, the inner end of the adjusting bolt 9 is connected with the swinging head 8, the outer end of the adjusting bolt 9 is connected with an adjusting nut 10 in a threaded way, the bottom connecting section 12 is provided with a guide groove 13 penetrating through the bottom connecting section 12 from left to right, the bottom connecting section 12 is provided with a half sinking groove 14, the guide groove 13 is arranged on the bottom surface of the half sinking groove 14, the motor 2 is fixed by penetrating through the guide groove 13 into the motor lower mounting head 7, and the half sinking groove 14 is used for accommodating the bolt head of the lower mounting bolt 15; the inclined connecting section 11 and the bottom connecting section 12 are integrally manufactured, a driving wheel mounting hole 16 is formed in the tail of the bottom connecting section 12, the driving wheel mounting hole 16 is connected with a driving wheel 17 through a penetrating shaft, and the driving wheel 17 is in transmission connection with an output wheel of the motor 2 through a belt or a chain; the line connecting the position of the spindle bolt 5 and the position of the lower mounting bolt 15 passes through the axial center position of the output shaft of the motor 2.

The upper end of the motor 2 is fixed through the rotating shaft bolt 5, the lower end of the motor 2 is slidably fixed in the guide groove 13 through the lower mounting bolt 15, the swinging head 8 is connected to the motor lower mounting head 7 in a penetrating manner, the adjusting bolt 9 is pulled outwards through screwing the adjusting nut 10, the adjusting bolt 9 drives the swinging head 8 to move forwards, the swinging head 8 drives the motor 2 to rotate around the rotating shaft bolt 5, accordingly tightness adjustment of a driving belt of the motor 2 is achieved, the motor lower mounting head 7 is directly used for penetrating the swinging head 8, a beam does not need to be independently arranged to penetrate the swinging head 8, the structure is simplified, the cost is reduced, and the waste of the structure is avoided; the strength is higher by being integrally manufactured; the half sinking groove 14 is arranged to sink the bolt head of the lower mounting bolt 15 into the half sinking groove, so that the appearance and safety can be improved, and the bolt is not easy to be damaged by external impact.

The front, rear, left, right, head and tail in this document are based on the actual orientation of the motorcycle.

The motor drive belt slack adjuster mechanism provided by the utility model has been described in detail above, and the description of the specific embodiments is only for helping to understand the method and core ideas of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. Motor drive belt tightness adjustment mechanism, including the motor installation suspension of installation motor, motor installation suspension includes left suspension and right suspension, its characterized in that: the left suspension and the right suspension are both in a 'angle' shape and comprise a bottom connecting section and an inclined connecting section, motor mounting lugs are downwards arranged on the inclined connecting section, and two sides of the upper end of a motor are connected to the motor mounting lugs through rotating shaft bolts;

the left suspension or the right suspension the head end inboard of bottom linkage segment is equipped with the regulating block, set up on the regulating block along the fore-and-aft direction and run through the regulation hole of regulating block, the lower extreme both sides of motor respectively are equipped with a motor and install the head down, the motor is installed the head and is cylindric, install overhead cross-under the motor of installing in regulating block place side and have a swinging head, regulation hole female screw connection has an adjusting bolt, adjusting bolt's inboard end is connected on the swinging head, threaded connection has adjusting nut on adjusting bolt's the outer end, set up on the bottom linkage segment and run through about the guiding groove of bottom linkage segment, the motor passes through lower installing bolt the guiding groove screw in install the head down in the motor and fix.

2. The motor drive belt slack adjustment mechanism of claim 1, wherein: the inclined connecting section and the bottom connecting section are integrally manufactured, a driving wheel mounting hole is formed in the tail portion of the bottom connecting section, the driving wheel mounting hole is connected with a driving wheel through a penetrating shaft, and the driving wheel is in transmission connection with an output wheel of the motor through a belt or a chain.

3. The motor drive belt slack adjustment mechanism of claim 1, wherein: the bottom connecting section is provided with a half sinking groove, the guide groove is formed in the bottom surface of the half sinking groove, and the half sinking groove is used for accommodating the bolt head of the lower mounting bolt.

4. The motor drive belt slack adjustment mechanism of claim 1, wherein: and a connecting line of the position of the rotating shaft bolt and the position of the lower mounting bolt passes through the axis position of the output shaft of the motor.

5. The motor drive belt slack adjustment mechanism of claim 1, wherein: the upper end of the motor is provided with a motor upper mounting head, and the rotating shaft bolt penetrates through and is screwed into the motor upper mounting head to be fixed from the motor mounting lug.