阅读说明：本技术 一种机械带轮及其工作方法 (Mechanical belt wheel and working method thereof ) 是由 刘小梅 于 2021-07-29 设计创作，主要内容包括：本发明涉及一种机械带轮及其工作方法,包括带轮本体(1),其特征在于：所述带轮本体(1)内部设有多个伸缩体(3),每个伸缩体(3)能够沿着带轮本体(1)半径方向来回移动从而改变带轮本体(1)的半径长度。本发明机械带轮不仅仅可以实现半径的变化从而防止皮带轮打滑,并且还可以变化成齿轮,使得带轮在无法满足传动要求时,可以变换为齿轮达到所需传动效果。(The invention relates to a mechanical belt wheel and a working method thereof, wherein the mechanical belt wheel comprises a belt wheel body (1) and is characterized in that: the belt wheel body (1) is internally provided with a plurality of telescopic bodies (3), and each telescopic body (3) can move back and forth along the radius direction of the belt wheel body (1) so as to change the radius length of the belt wheel body (1). The mechanical belt wheel not only can realize the change of the radius so as to prevent the belt wheel from slipping, but also can be changed into a gear so that the belt wheel can be changed into the gear to achieve the required transmission effect when the belt wheel cannot meet the transmission requirement.)

1. A mechanical pulley, comprising a pulley body (1), characterized in that: the belt wheel body (1) is internally provided with a plurality of telescopic bodies (3), and each telescopic body (3) can move back and forth along the radius direction of the belt wheel body (1) so as to change the radius length of the belt wheel body (1).

2. The mechanical pulley according to claim 1, characterized in that: a plurality of the telescopic bodies (3) extend out at intervals, a clamping gap (4) is formed between every two adjacent extending telescopic bodies (3), the extending telescopic bodies (3) form clamping teeth of a gear, and a mechanical belt wheel becomes the gear.

3. The mechanical pulley according to claim 1, characterized in that: every the flexible body (3) is driven by an independent electric telescopic handle (5), and fixed block (7) are fixed with being connected through linking bridge (52) respectively at fixed sleeve (51) both ends, fixed sleeve (51) are equipped with the through-hole, the removal portion of electric telescopic handle (5) runs through in the through-hole, the fixed part of electric telescopic handle (5) is fixed on band pulley body (1), the removal portion of electric telescopic handle (5) passes through connecting block (6) drive the flexible body (3) is along band pulley body (1) radial movement, be equipped with the belt draw-in groove on the flexible body (3).

4. The mechanical pulley according to claim 1, characterized in that: the bottom of the belt clamping groove is provided with a pressure sensor, and the pressure sensor can sense the pressure value generated between the belt and the mechanical belt wheel.

5. The mechanical pulley according to claim 1, characterized in that: when the mechanical belt wheel becomes a gear, the telescopic body (3) can be inserted into the clamping groove of the transmission chain and drives the transmission chain to rotate.

6. A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt feeding device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a driving motor, the B mechanical belt wheel is connected with a transmission part, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the A mechanical belt wheel are smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods (5) on the mechanical belt wheel, and the electric telescopic rods (5) push the telescopic body (3) to move outwards, so that the radius length of the belt wheel body (1) of the A mechanical belt wheel is increased;

and 3, when the pressure values output by the b pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods (5) are stopped to work.

7. A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt feeding device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a driving motor, the B mechanical belt wheel is connected with a transmission part, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the A mechanical belt wheel are smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods (5) on the mechanical belt wheel, and the electric telescopic rods (5) push the telescopic body (3) to move outwards, so that the radius length of the belt wheel body (1) of the A mechanical belt wheel is increased;

step 3, when all the electric telescopic rods (5) act on the telescopic body (3) to move outwards to an extreme value, the pressure values output by the B pressure sensors on the mechanical belt wheel A still cannot reach a set value, all the electric telescopic rods (5) on the mechanical belt wheel B are started, and the electric telescopic rods (5) push the telescopic body (3) to move outwards so as to increase the radius length of the belt wheel body (1) of the mechanical belt wheel B;

and 4, when the pressure values output by the B pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods (5) of the mechanical belt wheel B are stopped to work.

8. A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt feeding device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a driving motor, the B mechanical belt wheel is connected with a transmission part, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the A mechanical belt wheel are smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods (5) on the mechanical belt wheel, and the electric telescopic rods (5) push the telescopic body (3) to move outwards, so that the radius length of the belt wheel body (1) of the A mechanical belt wheel is increased;

step 3, when all the electric telescopic rods (5) act on the telescopic body (3) to move outwards to an extreme value, the pressure values output by the B pressure sensors on the mechanical belt wheel A still cannot reach a set value, all the electric telescopic rods (5) on the mechanical belt wheel B are started, and the electric telescopic rods (5) push the telescopic body (3) to move outwards so as to increase the radius length of the belt wheel body (1) of the mechanical belt wheel B;

and 4, when all the electric telescopic rods (5) act on the telescopic bodies (3) to move outwards to an extreme value, and when the pressure values output by the B pressure sensors on the A mechanical belt wheel still cannot reach a set value, the A mechanical belt wheel and the B mechanical belt wheel start half of the electric telescopic rods (5) again, and half of the telescopic bodies (3) are retracted, so that the A mechanical belt wheel is changed into the A gear, the B mechanical belt wheel is changed into the B gear, and the belt is replaced by a transmission chain to obtain the advantage of gear transmission.

9. A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a transmission part A, the B mechanical belt wheel is connected with a transmission part B, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the A mechanical belt wheel are smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods (5) on the mechanical belt wheel, and the electric telescopic rods (5) push the telescopic body (3) to move outwards, so that the radius length of the belt wheel body (1) of the A mechanical belt wheel is increased;

and 3, when the pressure values output by the b pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods (5) are stopped to work.

10. A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a transmission part A, the B mechanical belt wheel is connected with a transmission part B, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the A mechanical belt wheel are smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods (5) on the mechanical belt wheel, and the electric telescopic rods (5) push the telescopic body (3) to move outwards, so that the radius length of the belt wheel body (1) of the A mechanical belt wheel is increased;

step 3, when all the electric telescopic rods (5) act on the telescopic body (3) to move outwards to an extreme value, the pressure values output by the B pressure sensors on the mechanical belt wheel A still cannot reach a set value, all the electric telescopic rods (5) on the mechanical belt wheel B are started, and the electric telescopic rods (5) push the telescopic body (3) to move outwards so as to increase the radius length of the belt wheel body (1) of the mechanical belt wheel B;

and 4, when the pressure values output by the B pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods (5) of the mechanical belt wheel B are stopped to work.

Technical Field

The invention relates to a mechanical belt wheel, in particular to a mechanical belt wheel capable of automatically changing the transmission radius and a structure capable of realizing switching between the belt wheel and a gear.

Background

It is generally accepted in the industry that gear transmissions are more accurate than pulley transmissions and perform well in many details, as follows: 1. the instantaneous transmission ratio is constant, and the transmission is accurate and stable; 2. the structure is compact, and the operation is reliable; 3. the transmission power and the transmission ratio are large, and the service life is long;

however, the pulley drive has its own advantages: 1. the structure is simple, and the transmission device is suitable for transmission occasions with large center distance of two shafts; 2. the transmission is stable and noiseless, and the buffer and the vibration absorption can be realized; 3. the belt can slip on the belt wheel during overload, so that weak parts can be prevented from being damaged, and the safety protection effect is achieved.

Therefore, the belt pulley also has the problem that the belt slips, and the transmission efficiency of the belt pulley is low after the belt pulley is used for a long time; besides, under different application environments, the prior art has no mechanism for freely converting the belt wheel and the gear to realize the maximum effect of the structure.

Disclosure of Invention

The invention designs a mechanical belt wheel and a working method thereof, and solves the technical problems that (1) the wheel also has the problem that a belt slips, and the transmission efficiency of the belt wheel is low after the mechanical belt wheel is used for a long time; (2) under different application environments, the prior art has no mechanism for freely converting the belt wheel and the gear to realize the maximum effect of the structure.

In order to solve the technical problems, the invention adopts the following scheme:

the utility model provides a mechanical pulley, includes the band pulley body, the inside a plurality of concertina bodies that are equipped with of band pulley body, thereby every concertina body can change the radius length of band pulley body along band pulley body radius direction round trip movement.

Preferably, a plurality of the telescopic bodies extend out at intervals, a clamping gap is formed between two adjacent extending telescopic bodies, the extending telescopic bodies form clamping teeth of a gear, and the mechanical belt wheel becomes the gear.

Preferably, every the flexible body is driven by an independent electric telescopic handle, and the fixed bolster is fixed with being connected the fixed block through the linking bridge respectively at the fixed sleeve both ends, the fixed sleeve is equipped with the through-hole, electric telescopic handle's removal portion runs through in the through-hole, electric telescopic handle's fixed part is fixed on the band pulley body, electric telescopic handle's removal portion passes through the connecting block drive the flexible body is along band pulley body radial movement, be equipped with the belt draw-in groove on the flexible body.

Preferably, a pressure sensor is arranged at the bottom of the belt clamping groove, and the pressure sensor can sense the pressure value generated between the belt and the mechanical belt wheel.

Preferably, when the mechanical belt wheel becomes a gear, the telescopic body can be inserted into a clamping groove of the transmission chain and drive the transmission chain to rotate.

A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt feeding device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a driving motor, the B mechanical belt wheel is connected with a transmission part, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods on the mechanical belt wheel, and the electric telescopic rods push the telescopic body to move outwards, so that the radius length of the belt wheel body of the mechanical belt wheel A is increased;

and 3, when the pressure values output by the b pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and all the electric telescopic rods are stopped to work.

A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt feeding device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a driving motor, the B mechanical belt wheel is connected with a transmission part, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods on the mechanical belt wheel, and the electric telescopic rods push the telescopic body to move outwards, so that the radius length of the belt wheel body of the mechanical belt wheel A is increased;

step 3, when all the electric telescopic rods act on the telescopic body to move outwards to an extreme value, the pressure values output by the B pressure sensors on the mechanical belt wheel A still cannot reach a set value, all the electric telescopic rods on the mechanical belt wheel B are started, and the electric telescopic rods push the telescopic body to move outwards, so that the radius length of the belt wheel body of the mechanical belt wheel B is increased;

and 4, when the pressure values output by the B pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods of the mechanical belt wheel B are stopped to work.

A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt feeding device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a driving motor, the B mechanical belt wheel is connected with a transmission part, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods on the mechanical belt wheel, and the electric telescopic rods push the telescopic body to move outwards, so that the radius length of the belt wheel body of the mechanical belt wheel A is increased;

step 3, when all the electric telescopic rods act on the telescopic body to move outwards to an extreme value, the pressure values output by the B pressure sensors on the mechanical belt wheel A still cannot reach a set value, all the electric telescopic rods on the mechanical belt wheel B are started, and the electric telescopic rods push the telescopic body to move outwards, so that the radius length of the belt wheel body of the mechanical belt wheel B is increased;

and 4, when all the electric telescopic rods act on the telescopic bodies to move outwards to an extreme value, and when the pressure values output by the B pressure sensors on the A mechanical belt wheel still cannot reach a set value, the A mechanical belt wheel and the B mechanical belt wheel start half of the electric telescopic rods again, half of the telescopic bodies are retracted, the A mechanical belt wheel is changed into the A gear, the B mechanical belt wheel is changed into the B gear, and the belt is replaced by a transmission chain so as to obtain the advantage of gear transmission.

A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a transmission part A, the B mechanical belt wheel is connected with a transmission part B, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods on the mechanical belt wheel, and the electric telescopic rods push the telescopic body to move outwards, so that the radius length of the belt wheel body of the mechanical belt wheel A is increased;

and 3, when the pressure values output by the b pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and all the electric telescopic rods are stopped to work.

A working method of a mechanical pulley comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a transmission part A, the B mechanical belt wheel is connected with a transmission part B, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods on the mechanical belt wheel, and the electric telescopic rods push the telescopic body to move outwards, so that the radius length of the belt wheel body of the mechanical belt wheel A is increased;

step 3, when all the electric telescopic rods act on the telescopic body to move outwards to an extreme value, the pressure values output by the B pressure sensors on the mechanical belt wheel A still cannot reach a set value, all the electric telescopic rods on the mechanical belt wheel B are started, and the electric telescopic rods push the telescopic body to move outwards, so that the radius length of the belt wheel body of the mechanical belt wheel B is increased;

and 4, when the pressure values output by the B pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods of the mechanical belt wheel B are stopped to work.

The mechanical belt wheel and the working method thereof have the following beneficial effects:

(1) the mechanical belt wheel not only can realize the change of the radius so as to prevent the belt wheel from slipping, but also can be changed into a gear so that the belt wheel can be changed into the gear to achieve the required transmission effect when the belt wheel cannot meet the transmission requirement.

(2) According to the invention, whether the belt slips or not is sensed by arranging the pressure sensor at the bottom of the belt clamping groove, and the modes of increasing the radius of the belt wheel and changing the gear of the belt wheel are realized in sequence through the electric telescopic rod automatically according to the output value of the pressure sensor, so that the required transmission power can be realized rapidly on the premise of not replacing a mechanical belt wheel.

Drawings

FIG. 1: the invention is a schematic diagram of the original state of a mechanical belt wheel;

FIG. 2: the invention is a schematic diagram of increasing the radius of a mechanical belt wheel;

FIG. 3: the invention is a schematic diagram of a mechanical belt wheel variable gear;

FIG. 4: the invention discloses a schematic internal structure diagram of a mechanical belt wheel;

FIG. 5: fig. 4 is an enlarged schematic view at a.

Description of reference numerals:

1-a pulley body; 2, connecting holes; 3-a telescopic body; 4-a clamping gap; 5, an electric telescopic rod; 51, fixing a sleeve; 52-connecting the support; 53-connecting plate; 6, connecting blocks; 7, connecting a fixed block; and 8, mounting a connecting hole.

Detailed Description

The invention is further illustrated below with reference to fig. 1 to 5:

the utility model provides a mechanical pulley, includes band pulley body 1, and band pulley body 1 is inside to be equipped with a plurality of concertina bodies 3, thereby every concertina body 3 can change the radius length of band pulley body 1 along 1 direction of radius round trip movement of band pulley body.

The plurality of telescopic bodies 3 extend out at intervals, a clamping gap 4 is formed between two adjacent extending telescopic bodies 3, the extending telescopic bodies 3 form clamping teeth of the gear, and the mechanical belt wheel becomes the gear.

Every telescopic body 3 is driven by an independent electric telescopic handle 5, fixed sleeve 51 both ends are fixed with being connected fixed block 7 through linking bridge 52 respectively, fixed sleeve 51 is equipped with the through-hole, during electric telescopic handle 5's removal portion runs through the through-hole, electric telescopic handle 5's fixed part is fixed on band pulley body 1, electric telescopic handle 5's removal portion passes through connecting block 6 drive telescopic body 3 along band pulley body 1 radial movement, is equipped with the belt draw-in groove on the telescopic body 3.

The bottom of the belt clamping groove is provided with a pressure sensor which can sense the pressure value generated between the belt and the mechanical belt wheel.

When the mechanical belt wheel becomes a gear, the telescopic body 3 can be inserted into the clamping groove of the transmission chain and drive the transmission chain to rotate.

The first working method of the mechanical belt wheel comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt feeding device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a driving motor, the B mechanical belt wheel is connected with a transmission part, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods 5 on the mechanical belt wheel, and the electric telescopic rods 5 push the telescopic body 3 to move outwards, so that the radius length of the belt wheel body 1 of the mechanical belt wheel A is increased;

and 3, when the pressure values output by the b pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods 5 are stopped to work.

The second working method of the mechanical belt wheel comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt feeding device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a driving motor, the B mechanical belt wheel is connected with a transmission part, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods 5 on the mechanical belt wheel, and the electric telescopic rods 5 push the telescopic body 3 to move outwards, so that the radius length of the belt wheel body 1 of the mechanical belt wheel A is increased;

step 3, when all the electric telescopic rods 5 act on the telescopic body 3 to move outwards to an extreme value, the pressure values output by the B pressure sensors on the mechanical belt wheel A still cannot reach a set value, all the electric telescopic rods 5 on the mechanical belt wheel B are started, and the electric telescopic rods 5 push the telescopic body 3 to move outwards, so that the radius length of the belt wheel body 1 of the mechanical belt wheel B is increased;

and 4, when the pressure values output by the B pressure sensors on the mechanical belt wheel A are recovered to be above the set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods 5 of the mechanical belt wheel B are stopped to work.

The third working method of the mechanical belt wheel comprises the following steps:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt feeding device comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a driving motor, the B mechanical belt wheel is connected with a transmission part, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods 5 on the mechanical belt wheel, and the electric telescopic rods 5 push the telescopic body 3 to move outwards, so that the radius length of the belt wheel body 1 of the mechanical belt wheel A is increased;

step 3, when all the electric telescopic rods 5 act on the telescopic body 3 to move outwards to an extreme value, the pressure values output by the B pressure sensors on the mechanical belt wheel A still cannot reach a set value, all the electric telescopic rods 5 on the mechanical belt wheel B are started, and the electric telescopic rods 5 push the telescopic body 3 to move outwards, so that the radius length of the belt wheel body 1 of the mechanical belt wheel B is increased;

and 4, when all the electric telescopic rods 5 act on the telescopic bodies 3 to move outwards to an extreme value, and when the pressure values output by the B pressure sensors on the A mechanical belt wheel still cannot reach a set value, the A mechanical belt wheel and the B mechanical belt wheel start half of the electric telescopic rods 5 again, and half of the telescopic bodies 3 are retracted, so that the A mechanical belt wheel is changed into an A gear, the B mechanical belt wheel is changed into a B gear, and a belt is replaced by a transmission chain to obtain the advantage of gear transmission.

A fourth working method of the mechanical pulley of the present invention, which is substantially the same as the first working method except that two mechanical pulleys are connected to two transmission members, comprises the steps of:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt conveyor comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a transmission part A, the B mechanical belt wheel is connected with a transmission part B, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods 5 on the mechanical belt wheel, and the electric telescopic rods 5 push the telescopic body 3 to move outwards, so that the radius length of the belt wheel body 1 of the mechanical belt wheel A is increased;

and 3, when the pressure values output by the b pressure sensors on the mechanical belt wheel A are recovered to be above a set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods 5 are stopped to work.

A fifth working method of the mechanical pulley of the present invention is substantially the same as the second working method except that two mechanical pulleys are connected to two transmission members, and includes the steps of:

step 1, using two mechanical pulleys according to any one of claims 1 to 5: the automatic belt conveyor comprises an A mechanical belt wheel and a B mechanical belt wheel, wherein the A mechanical belt wheel is connected with a transmission part A, the B mechanical belt wheel is connected with a transmission part B, the A mechanical belt wheel and the B mechanical belt wheel are transmitted through a belt, a pressure sensors are respectively arranged in belt clamping grooves of the A mechanical belt wheel and the B mechanical belt wheel, and a is larger than 1;

step 2, when the two mechanical belt wheels work, if the pressure values output by the b pressure sensors on the mechanical belt wheel A become smaller and b is smaller than a, the situation that the mechanical belt wheel slips is indicated, the control device automatically starts all electric telescopic rods 5 on the mechanical belt wheel, and the electric telescopic rods 5 push the telescopic body 3 to move outwards, so that the radius length of the belt wheel body 1 of the mechanical belt wheel A is increased;

step 3, when all the electric telescopic rods 5 act on the telescopic body 3 to move outwards to an extreme value, the pressure values output by the B pressure sensors on the mechanical belt wheel A still cannot reach a set value, all the electric telescopic rods 5 on the mechanical belt wheel B are started, and the electric telescopic rods 5 push the telescopic body 3 to move outwards, so that the radius length of the belt wheel body 1 of the mechanical belt wheel B is increased;

and 4, when the pressure values output by the B pressure sensors on the mechanical belt wheel A are recovered to be above the set value, the transmission modes of the two mechanical belt wheels are recovered to be normal, and meanwhile, all the electric telescopic rods 5 of the mechanical belt wheel B are stopped to work.

The invention is described above with reference to the accompanying drawings, it is obvious that the implementation of the invention is not limited in the above manner, and it is within the scope of the invention to adopt various modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.