CN216916147U

CN216916147U - Measuring device for bicycle transmission shaft

Info

Publication number: CN216916147U
Application number: CN202220239037.XU
Authority: CN
Inventors: 张皓嘉
Original assignee: Foshan Shunde Space Cardan Material Co ltd
Current assignee: Foshan Shunde Space Cardan Material Co ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-07-08
Anticipated expiration: 2032-01-28

Abstract

A measuring device for a transmission shaft of a bicycle is provided, a main shaft is provided with a torque measuring ring and a speed measuring ring in a penetrating way, the torque measuring ring is embedded with the torque magnetic steels in a circumferential array, the speed measuring ring is embedded with the speed magnetic steels in a circumferential array, the shell counter-stress torque measuring ring is connected with the torque Hall sensing element, and the corresponding speed measuring ring is connected with the speed Hall sensing element. The electric quantity consumed by the moped is reduced, a better power assisting effect is achieved, and accurate electric power assistance is realized.

Description

Measuring device for bicycle transmission shaft

Technical Field

The utility model relates to the field of power-assisted bicycles, in particular to a measuring device for a transmission shaft of a bicycle.

Background

The transmission shaft bicycle is a bicycle for power transmission by using a transmission shaft, and does not have the condition of chain falling unlike the common bicycle in which power is transmitted by a chain.

At present, a torque sensor of a moped cannot accurately detect a torque value of a pedal, so that a motor cannot output accurate torque, the moped consumes electric quantity, a good power assisting effect cannot be achieved, and acceleration, deceleration, uniform speed and other excessive changes cannot be accurately and properly operated, so that the control is often inaccurate and sometimes even wrong.

SUMMERY OF THE UTILITY MODEL

The utility model improves the prior art aiming at the defects, and provides a measuring device for a bicycle transmission shaft, which has the following technical scheme:

the utility model provides a measuring device for bicycle transmission shaft, including the transmission shaft and rather than through the driven main shaft of gear engagement, this spindle sleeve is equipped with the shell, and its both ends run through the shell, moment measurement ring sum speed measurement ring are worn to be equipped with by the main shaft, and this moment measurement ring circumference array inlays and is equipped with the moment magnet steel, speed measurement ring circumference array inlays and is equipped with the speed magnet steel, the shell is connected with moment hall sensing element, corresponds speed measurement ring to stress moment measurement ring, and this moment hall sensing element and speed hall sensing element pass through the spacing shell of connecting of fixed block, belleville spring is worn to be equipped with in the bottom of main shaft.

The transmission shaft is provided with a first bevel gear in a penetrating manner, the first bevel gear is arranged on the inner side of the shell in a penetrating manner, the main shaft is provided with a second bevel gear in a penetrating manner corresponding to the first bevel gear, and the first bevel gear is meshed with the second bevel gear.

Furthermore, a transmission sleeve is sleeved on the outer side of the transmission shaft and fixedly connected with the shell, and a first bearing is arranged between the transmission sleeve and the shaft sleeve of the first bevel gear.

An end cover is connected above the shell, and a second bearing is arranged between the end cover and a shaft sleeve of the second bevel gear.

The main shaft is located the top of moment measuring ring and wears to be equipped with first joint axle sleeve to through latch and the meshing transmission of first joint axle sleeve, the top cooperation of this first joint axle sleeve is connected with second joint axle sleeve, the second bevel gear is worn to locate in the upper end of second joint axle sleeve.

The torque measuring ring is positioned between the torque measuring ring and the main shaft and is provided with a bearing, the outer side of the torque measuring ring extends to be provided with a positioning part, and the positioning part is matched with the shell to limit the torque measuring ring.

Compared with the prior art, the utility model has the beneficial effects that: the utility model combines the torque measurement with the speed measurement, can synchronously acquire torque and rotating speed signals in the transmission process, provides real data for the controller to timely and accurately control the output power of the motor, ensures that the torque output by the motor and the driving condition are always in the best matching state, realizes the accuracy of acceleration, deceleration, uniform speed and the like and transition change, ensures that the motor outputs accurate torque, reduces the electric quantity consumption of the moped, achieves better power assisting effect and realizes accurate electric power assistance.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced as follows:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of the present invention 1;

FIG. 3 is an exploded view of the present invention, FIG. 2;

the method comprises the following steps: 1. a drive shaft; 2. a main shaft; 3. a housing; 4. a moment measuring ring; 5. a speed measurement loop; 6. moment magnetic steel; 7. speed magnetic steel; 8. a torque Hall sensing element; 9. a speed Hall sensing element; 10. a fixed block; 11. a first bevel gear; 12. a second bevel gear; 13. a transmission sleeve; 14. a first bearing; 15. an end cap; 16. a second bearing; 17. a first clamping shaft sleeve; 18. clamping teeth; 19. a second clamping shaft sleeve; 20. a positioning part; 21. a disc spring.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Embodiments of the utility model will be described in further detail below with reference to the following drawings, in which:

the utility model provides a measuring device for bicycle transmission shaft, including transmission shaft 1 and rather than through driven main shaft 2 of gear engagement, 2 covers of this main shaft are equipped with shell 3, and its both ends run through shell 3, main shaft 2 is worn to be equipped with moment measurement ring 4 and

speed measurement ring

5, 4 circumference arrays of this moment measurement ring are inlayed and are equipped with moment magnet steel 6, 5 circumference arrays of speed measurement ring are inlayed and are equipped with speed magnet steel 7, shell 3 is connected with moment hall sensing element 8 to stress moment measurement ring 4, it is connected with speed hall sensing element 9 to correspond speed measurement ring 5, and this moment hall sensing element 8 and speed hall sensing element 9 pass through fixed block 10 spacing connection shell 3, belleville spring 21 is worn to be equipped with in the bottom of main shaft 2, this belleville spring 21 is used for the moment to measure the reset of

ring

4 and 5 vertical activities of speed measurement ring.

A first bevel gear 11 is arranged in the transmission shaft 1 in a penetrating manner, the first bevel gear 11 is arranged on the inner side of the shell 3 in a penetrating manner, a second bevel gear 12 is arranged in the main shaft 2 corresponding to the first bevel gear 11 in a penetrating manner, and the first bevel gear 11 is meshed with the second bevel gear 12.

Further, a driving sleeve 13 is sleeved on the outer side of the driving shaft 1, the driving sleeve 13 is fixedly connected with the shell 3, and a first bearing 14 is arranged between the driving sleeve 13 and the shaft sleeve of the first bevel gear 11.

An end cap 15 is connected to the upper part of the housing 3, and a second bearing 16 is arranged between the end cap 15 and the shaft sleeve of the second bevel gear 12.

The main shaft 2 is provided with a first clamping shaft sleeve 17 above the torque measuring ring 4 in a penetrating way, and is in meshed transmission with the first clamping shaft sleeve 17 through a clamping tooth 18, a second clamping shaft sleeve 19 is connected above the first clamping shaft sleeve 17 in a matching way, and the upper end of the second clamping shaft sleeve 19 is arranged on the second bevel gear 12 in a penetrating way.

The torque measuring ring 4 is provided with a bearing between the torque measuring ring and the main shaft 2, a positioning part 20 extends from the outer side of the torque measuring ring, and the positioning part 20 is matched with the shell 3 to limit the torque measuring ring 4.

The utility model combines the torque measurement with the speed measurement, can synchronously acquire torque and rotating speed signals in the transmission process, provides real data for a controller to timely and accurately control the output power of the motor, ensures that the torque output by the motor is always in the best matching state with the driving condition, realizes the accuracy of acceleration, deceleration, uniform speed and the like and transition change, ensures that the motor outputs accurate torque, reduces the electric quantity consumption of the moped, achieves better power assisting effect and realizes accurate electric power assistance.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A measuring device for a transmission shaft of a bicycle comprises a transmission shaft (1) and a main shaft (2) which is in meshing transmission with the transmission shaft through a gear, the main shaft (2) is sleeved with a shell (3), and two ends of the main shaft penetrate through the shell (3), it is characterized in that a moment measuring ring (4) and a speed measuring ring (5) are arranged on the main shaft (2) in a penetrating way, the moment measuring ring (4) is embedded with moment magnetic steels (6) in a circumferential array manner, the speed measuring ring (5) is embedded with speed magnetic steels (7) in a circumferential array manner, the shell (3) is connected with a moment Hall sensing element (8) to the stress moment measuring ring (4), a speed Hall sensing element (9) is connected with the corresponding speed measuring ring (5), the moment Hall sensing element (8) and the speed Hall sensing element (9) are in limit connection with the shell (3) through a fixing block (10), and a disc spring (21) penetrates through the bottom of the main shaft (2).

2. A measuring device for a drive shaft of a bicycle according to claim 1, characterized in that the drive shaft (1) is provided with a first bevel gear (11), which first bevel gear (11) is provided on the inside of the housing (3), and the main shaft (2) is provided with a second bevel gear (12) corresponding to the first bevel gear (11), which first bevel gear (11) meshes with the second bevel gear (12).

3. A measuring device for a drive shaft of a bicycle according to claim 2, characterized in that a drive sleeve (13) is sleeved on the outside of the drive shaft (1), the drive sleeve (13) is fixedly connected with the housing (3), and a first bearing (14) is arranged between the drive sleeve (13) and the sleeve of the first bevel gear (11).

4. A measuring device for a bicycle drive shaft according to claim 1, characterized in that an end cap (15) is connected to the upper side of the housing (3), and a second bearing (16) is arranged between the end cap (15) and the sleeve of the second bevel gear (12).

5. The measuring device for the transmission shaft of the bicycle according to claim 1, wherein the main shaft (2) is positioned above the torque measuring ring (4) and is provided with a first clamping shaft sleeve (17) in a penetrating manner, and is in meshing transmission with the first clamping shaft sleeve (17) through a clamping tooth (18), a second clamping shaft sleeve (19) is connected above the first clamping shaft sleeve (17) in a matching manner, and the upper end of the second clamping shaft sleeve (19) is arranged in a penetrating manner on the second bevel gear (12).

6. A measuring device for a bicycle transmission shaft according to claim 1, characterized in that the torque measuring ring (4) is provided with a bearing between the torque measuring ring and the main shaft (2), and a positioning part (20) extends from the outside, and the positioning part (20) cooperates with the housing (3) to limit the torque measuring ring (4).