CN111731773B - Transmission mechanism for belt conveyor - Google Patents
Transmission mechanism for belt conveyor Download PDFInfo
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- CN111731773B CN111731773B CN202010613578.XA CN202010613578A CN111731773B CN 111731773 B CN111731773 B CN 111731773B CN 202010613578 A CN202010613578 A CN 202010613578A CN 111731773 B CN111731773 B CN 111731773B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/04—Drums, rollers, or wheels
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Abstract
The invention relates to a transmission mechanism for a belt conveyor, comprising: the driving shaft is used for driving the V-shaped belt and further driving the driven shaft, and the driven shaft is used for driving the belt conveyor; the transmission mechanism is used for transmitting the driving force of the driving shaft to the driven shaft when the driving shaft reaches a certain rotating speed. This application passes through drive end drive mechanism and driven end drive mechanism's cooperation realizes not driving belt conveyor operation when the motor starts, and the motor is close zero load and starts promptly, has realized the change of different drive ratios between drive shaft and the driven shaft, rotates the regulation that can realize drive ratio promptly through adjusting motor, has realized the better control to belt conveyor rotational speed.
Description
Technical Field
The invention relates to the technical field of belt conveyors, in particular to a transmission mechanism for a belt conveyor.
Background
When a belt conveyor in the prior art is started, a conveyor belt with a long load is usually needed to be started, namely, the belt is started with the load, but a motor generally cannot provide large driving force in a starting stage, and an existing solution is to select a large-load motor, namely, the motor exceeding the partial carrying capacity of the belt conveyor is used for providing the driving force in the starting stage, so that resource waste is caused, the capital investment is increased, and the belt conveyor is not beneficial to production.
Disclosure of Invention
The invention aims to solve the problems and provides a transmission mechanism for a belt conveyor, which can provide large driving capability when the belt conveyor is started, and the specific technical scheme is as follows:
a transmission mechanism for a belt conveyor, comprising: the driving shaft is used for driving the V-shaped belt and further driving the driven shaft, and the driven shaft is used for driving the belt conveyor; the transmission mechanism is used for transmitting the driving force of the driving shaft to the driven shaft when the driving shaft reaches a certain rotating speed.
Furthermore, the transmission mechanism comprises a driving end transmission mechanism and a driven end transmission mechanism, the driving end transmission mechanism is used for gradually tensioning the V-shaped belt when the driving shaft reaches a certain rotating speed, and the driven end transmission mechanism is used for connecting the gradually tensioned V-shaped belt with the driven shaft in a transmission manner.
Further, the driving end transmission mechanism comprises a first fixed disc, a guide ring, a first spring, a centrifugal chute, a first ball, a guide block and a limit disc, wherein the first fixed disc is fixedly arranged at the left end of the driving shaft, the limit disc is fixedly arranged at the right end of the driving shaft and used for guiding and limiting the first ball, the guide block is fixedly arranged at one side, far away from the axis of the driving shaft, of the limit disc, the guide ring is fixedly arranged at the middle part of the driving shaft, the centrifugal chute is slidably arranged on the guide ring, a limiting part for limiting the rotation of the centrifugal chute is arranged on the guide ring and the centrifugal chute, the left end of the first spring is arranged at the right end of the guide ring, a rebound part matched with the right end of the first spring is arranged at the right end of the centrifugal chute, the first ball is arranged in the chute on the centrifugal chute, and the limit disc jointly form a first accommodating space for the first ball, the gap of one side of the first accommodating space, which is far away from the axis, is smaller than the gap of one side, which is close to the axis, so that the first ball can push the centrifugal chute to the left side when moving to one side, which is far away from the axis, under the action of centrifugal force, the first fixed disc and the centrifugal chute jointly form a second accommodating space for accommodating a V-shaped belt, the V-shaped belt is arranged in the second accommodating space, and the gap of one side, which is far away from the axis, of the second accommodating space is larger than the gap of one side, which is close to the axis, so that the upper end of the V-shaped belt can be pushed upwards when the centrifugal chute moves to the left; the driven end transmission mechanism comprises a second fixed disc, a sliding disc, a second spring, a limiting sleeve, a transmission wheel, a second ball and a fixed sleeve, the fixed sleeve is fixedly arranged at the right end of the driven shaft, the limiting sleeve is fixedly arranged at the left end of the driven shaft, the second fixed disc is fixedly arranged at the right end of the fixed sleeve, the sliding disc is slidably arranged on the fixed sleeve, the second spring is arranged between the limiting sleeve and the sliding disc and used for pressing the sliding disc towards the second fixed disc, the side, close to the axis of the driven shaft, of the sliding disc is provided with the transmission wheel, the second ball is arranged between the transmission wheel and the limiting sleeve, one side, close to the axis of the driven shaft, of the limiting sleeve is provided with a spherical groove for limiting the second ball, the transmission wheel is provided with a transmission groove with depth gradually increased along the circumferential direction, and the direction of the depth increase of the transmission groove is opposite to the rotation direction of the driven wheel, to facilitate the driving wheel to move to the maximum when the V-belt is tensioned and to reduce the friction force of the sliding disk in the circumferential direction between the V-belts, the second ball is in contact with a shallower position of the driving groove when the sliding disk is positioned at the rightmost side, and the second ball is in contact with a deepest position of the driving groove when the sliding disk is slid to the leftmost side, and transmits the driving force of the V-belt from the driving wheel to the fixing sleeve.
Further, the spherical grooves are provided in plurality.
Further, the second ball is provided in plurality.
Further, the first ball is provided in plurality.
Further, spherical recess is provided with two, the second ball is provided with two, and spherical recess's end is provided with the butt piece, and the one end setting of third spring and telescopic link is in on the butt piece, the other end setting of third spring and telescopic link is at spherical recess's end, the third spring housing is established on the telescopic link, the inside fourth spring that is provided with of telescopic link.
The invention achieves remarkable technical effects through the technical contents: according to the belt conveyor control system, the belt conveyor is not driven to run when the motor is started through the matching of the driving end transmission mechanism and the driven end transmission mechanism, namely the motor is started close to zero load, the driving force is gradually increased along with the increase of the rotating speed of the motor, the belt conveyor can be gradually started in the process, and when the abutting blocks are located at different positions, the change of different transmission ratios between the driving shaft and the driven shaft is realized, namely the adjustment of the transmission ratios can be realized through the adjustment of the rotation of the motor, and the rotation speed of the belt conveyor is better controlled; this application has realized the zero load of motor through the cooperation of above-mentioned structure and has started, when the motor reaches certain rotational speed, realize the transmission of motor and belt conveyor, belt conveyor's the start-up degree of difficulty has been reduced greatly, only need match the motor of suitable power and can realize belt conveyor's normal operating, even when the rotational speed of motor makes the sliding tray just move to the leftmost side, can't drive belt conveyor smoothly, rated drive power has not yet been provided, can not harm the motor this moment, the V type area tensile force that provides is not enough under this rotational speed continues to rotate, and V type area skids appears, the motor continues normal operating, only need continue to improve motor speed under this kind of condition, further tensioning V type area, in order to provide bigger frictional force and transmit bigger drive power in order to realize belt conveyor's normal start.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of a first embodiment of the drive wheel in the present invention.
Fig. 3 is a left side view of a second embodiment of the drive wheel in the present invention.
Fig. 4 is an enlarged view of the invention at a in fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-2, a transmission mechanism for a belt conveyor includes: a drive shaft 14 for driving the V-belt 1 and, in turn, a driven shaft 17, the driven shaft 17 for driving the belt conveyor; and a transmission mechanism for transmitting the driving force of the driving shaft 14 to the driven shaft 14 when the driving shaft 14 reaches a certain rotation speed.
The transmission mechanism comprises a driving end transmission mechanism and a driven end transmission mechanism, the driving end transmission mechanism is used for gradually tensioning the V-shaped belt 1 when the driving shaft 14 reaches a certain rotating speed, and the driven end transmission mechanism is used for connecting the gradually tensioned V-shaped belt 1 with the driven shaft 17 in a transmission mode. During the progressive tightening of the V-belt 1, the drive shaft 14 and the driven shaft 17 have a gradually decreasing transmission ratio.
The driving end transmission mechanism comprises a first fixed disc 7, a guide ring 8, a first spring 9, a centrifugal chute 10, a first ball 11, a guide block 12 and a limiting disc 13, wherein the first fixed disc 7 is fixedly arranged at the left end of a driving shaft 14, the limiting disc 13 is fixedly arranged at the right end of the driving shaft 14 and used for guiding and limiting the first ball 11, the guide block 12 is fixedly arranged at one side of the limiting disc 13 far away from the axis of the driving shaft, the guide ring 8 is fixedly arranged at the middle part of the driving shaft 14, the centrifugal chute 10 is slidably arranged on the guide ring 8, limiting parts for limiting the rotation of the centrifugal chute 10 are arranged on the guide ring 8 and the centrifugal chute 10, the left end of the first spring 9 is arranged at the right end of the guide ring 8, the right end of the centrifugal chute 10 is provided with a rebound part matched with the right end of the first spring 9, the first ball 11 is arranged in a chute on the centrifugal chute 10, the chute and the limiting disc 13 jointly form a first accommodating space of the first ball 11, a gap on one side, far away from the axis, of the first accommodating space is smaller than a gap on one side, close to the axis, of the first ball 11, so that the centrifugal chute 10 can be pushed to the left side when the first ball 11 moves to one side, far away from the axis, under the action of centrifugal force, the first fixing disc 7 and the centrifugal chute 10 jointly form a second accommodating space for accommodating the V-shaped belt 1, the V-shaped belt 1 is arranged in the second accommodating space, and the gap on one side, far away from the axis, of the second accommodating space is larger than the gap on one side, close to the axis, of the second accommodating space, so that the upper end of the V-shaped belt 1 can be pushed upwards when the centrifugal chute 10 moves to the left.
The driven end transmission mechanism comprises a second fixed disc 15, a sliding disc 2, a second spring 3, a limiting sleeve 4, a transmission wheel 5, a second ball 6 and a fixed sleeve 16, the fixed sleeve 16 is fixedly arranged at the right end of the driven shaft 17, the limiting sleeve 4 is fixedly arranged at the left end of the driven shaft 17, the second fixed disc 15 is fixedly arranged at the right end of the fixed sleeve 16, the sliding disc 2 is slidably arranged on the fixed sleeve 16, the second spring 3 is arranged between the limiting sleeve 4 and the sliding disc 2 and used for pressing the sliding disc 2 to the second fixed disc 15, the transmission wheel 5 is arranged on one side, close to the axis of the driven shaft, of the sliding disc 2, the second ball 6 is arranged between the transmission wheel 5 and the limiting sleeve 4, a spherical groove for limiting the second ball 6 is arranged on one side, close to the axis of the driven shaft, of the limiting sleeve 4, and the transmission wheel 5 is provided with a transmission groove with depth gradually increasing along the circumferential direction, the depth of the drive groove increases in a direction opposite to the rotation direction of the driven pulley to facilitate the drive pulley 5 to move to the maximum when the V-belt 1 is tensioned and to reduce the friction of the sliding disc 2 in the circumferential direction between the V-belt 1, the second ball 6 contacts the drive groove at a shallower position when the sliding disc 2 is positioned at the rightmost side, and the second ball 6 contacts the drive groove at a deepest position when the sliding disc 2 slides to the leftmost side and transmits the driving force of the V-belt 1 from the drive pulley 5 to the fixing sleeve 16.
The spherical grooves are provided in plurality.
The second ball 6 is provided in plurality.
The first ball 11 is provided in plurality.
The working process of the transmission mechanism for the belt conveyor is as follows: starting a motor, driving the driving shaft 14 to rotate by the motor, driving the first fixing disc 7 and the centrifugal chute 10 to rotate by the driving shaft 14, and the V-belt 1 cannot be driven to rotate because the first fixing disc 7 and the centrifugal chute 1 have a larger distance therebetween, so that the motor does not drive the belt conveyor to operate at this time, the motor starts approaching zero load, as the rotation speed of the motor increases, the centrifugal force received by the first ball 11 increases, the first ball 11 starts moving in a direction away from the axis of the driving shaft 14 and presses the right side of the centrifugal chute 10, the centrifugal chute 10 overcomes the elastic force of the first spring 9 to move leftwards, the left side of the centrifugal chute 10 contacts with the right side of the V-belt 1 and gradually presses the V-belt 1, the upper end of the V-belt 1 moves upwards and starts tensioning and rotating, and simultaneously the lower end of the V-belt 1 starts moving upwards, and the left side of the lower end of the V-belt 1 presses the sliding disc 2 and drives the sliding disc 2 to rotate, when the sliding disc 2 moves to the leftmost side, the second ball 6 is abutted to the lowest position of the spherical groove, so that transmission limit of the transmission wheel 5 is realized, the transmission wheel 5 drives the limit sleeve 4 to rotate through the second ball 6, the limit sleeve 4 and the second fixed disc 15 drive the driven shaft 17 to rotate, and the driven shaft 17 drives the belt conveyor to operate. This application has realized the zero load of motor through the cooperation of above-mentioned structure and has started, when the motor reaches certain rotational speed, realize the transmission of motor and belt conveyor, belt conveyor's the start degree of difficulty has been reduced greatly, only need match the motor of suitable power and can realize belt conveyor's normal operating, even when the rotational speed of motor makes sliding disc 2 just move to the leftmost side, can't drive belt conveyor smoothly, rated drive power has not yet been provided, can not harm the motor this moment, the V type area 1 tensile force that provides is not enough under this rotational speed continues to rotate, and V type area 1 skids appears, the motor continues normal operating, only need continue to improve motor speed under this kind of condition, further tensioning V type area 1, in order to provide bigger frictional force and transmit bigger drive power in order to realize belt conveyor's normal start.
Example 2
As shown in fig. 1, 3-4, a transmission mechanism for a belt conveyor, comprising: a drive shaft 14 for driving the V-belt 1 and, in turn, a driven shaft 17, the driven shaft 17 for driving the belt conveyor; and a transmission mechanism for transmitting the driving force of the driving shaft 14 to the driven shaft 14 when the driving shaft 14 reaches a certain rotation speed.
The transmission mechanism comprises a driving end transmission mechanism and a driven end transmission mechanism, the driving end transmission mechanism is used for gradually tensioning the V-shaped belt 1 when the driving shaft 14 reaches a certain rotating speed, and the driven end transmission mechanism is used for connecting the gradually tensioned V-shaped belt 1 with the driven shaft 17 in a transmission mode. During the progressive tightening of the V-belt 1, the drive shaft 14 and the driven shaft 17 have a gradually decreasing transmission ratio.
The driving end transmission mechanism comprises a first fixed disc 7, a guide ring 8, a first spring 9, a centrifugal chute 10, a first ball 11, a guide block 12 and a limiting disc 13, wherein the first fixed disc 7 is fixedly arranged at the left end of a driving shaft 14, the limiting disc 13 is fixedly arranged at the right end of the driving shaft 14 and used for guiding and limiting the first ball 11, the guide block 12 is fixedly arranged at one side of the limiting disc 13 far away from the axis of the driving shaft, the guide ring 8 is fixedly arranged at the middle part of the driving shaft 14, the centrifugal chute 10 is slidably arranged on the guide ring 8, limiting parts for limiting the rotation of the centrifugal chute 10 are arranged on the guide ring 8 and the centrifugal chute 10, the left end of the first spring 9 is arranged at the right end of the guide ring 8, the right end of the centrifugal chute 10 is provided with a rebound part matched with the right end of the first spring 9, the first ball 11 is arranged in a chute on the centrifugal chute 10, the chute and the limiting disc 13 jointly form a first accommodating space of the first ball 11, a gap on one side, far away from the axis, of the first accommodating space is smaller than a gap on one side, close to the axis, of the first ball 11, so that the centrifugal chute 10 can be pushed to the left side when the first ball 11 moves to one side, far away from the axis, under the action of centrifugal force, the first fixing disc 7 and the centrifugal chute 10 jointly form a second accommodating space for accommodating the V-shaped belt 1, the V-shaped belt 1 is arranged in the second accommodating space, and the gap on one side, far away from the axis, of the second accommodating space is larger than the gap on one side, close to the axis, of the second accommodating space, so that the upper end of the V-shaped belt 1 can be pushed upwards when the centrifugal chute 10 moves to the left.
The driven end transmission mechanism comprises a second fixed disc 15, a sliding disc 2, a second spring 3, a limiting sleeve 4, a transmission wheel 5, a second ball 6 and a fixed sleeve 16, the fixed sleeve 16 is fixedly arranged at the right end of the driven shaft 17, the limiting sleeve 4 is fixedly arranged at the left end of the driven shaft 17, the second fixed disc 15 is fixedly arranged at the right end of the fixed sleeve 16, the sliding disc 2 is slidably arranged on the fixed sleeve 16, the second spring 3 is arranged between the limiting sleeve 4 and the sliding disc 2 and used for pressing the sliding disc 2 to the second fixed disc 15, the transmission wheel 5 is arranged on one side, close to the axis of the driven shaft, of the sliding disc 2, the second ball 6 is arranged between the transmission wheel 5 and the limiting sleeve 4, a spherical groove for limiting the second ball 6 is arranged on one side, close to the axis of the driven shaft, of the limiting sleeve 4, and the transmission wheel 5 is provided with a transmission groove with depth gradually increasing along the circumferential direction, the depth of the drive groove increases in a direction opposite to the rotation direction of the driven pulley to facilitate the drive pulley 5 to move to the maximum when the V-belt 1 is tensioned and to reduce the friction of the sliding disc 2 in the circumferential direction between the V-belt 1, the second ball 6 contacts the drive groove at a shallower position when the sliding disc 2 is positioned at the rightmost side, and the second ball 6 contacts the drive groove at a deepest position when the sliding disc 2 slides to the leftmost side and transmits the driving force of the V-belt 1 from the drive pulley 5 to the fixing sleeve 16.
The first ball 11 is provided in plurality.
The spherical grooves are provided with two. The number of the second balls 6 is two. The end of spherical recess is provided with butt piece 20, and the one end setting of third spring 18 and telescopic link 19 is in on the butt piece 20, the other end setting of third spring 18 and telescopic link 19 is at the end of spherical recess, third spring 18 cover is established on telescopic link 19. A fourth spring is arranged inside the telescopic rod 19.
The V-belt 1 has a trapezoidal cross-section.
The working process of the transmission mechanism for the belt conveyor is as follows: starting a motor, driving the driving shaft 14 to rotate by the motor, driving the first fixing disc 7 and the centrifugal chute 10 to rotate by the driving shaft 14, and the V-belt 1 cannot be driven to rotate because the first fixing disc 7 and the centrifugal chute 1 have a larger distance therebetween, so that the motor does not drive the belt conveyor to operate at this time, the motor starts approaching zero load, as the rotation speed of the motor increases, the centrifugal force received by the first ball 11 increases, the first ball 11 starts moving in a direction away from the axis of the driving shaft 14 and presses the right side of the centrifugal chute 10, the centrifugal chute 10 overcomes the elastic force of the first spring 9 to move leftwards, the left side of the centrifugal chute 10 contacts with the right side of the V-belt 1 and gradually presses the V-belt 1, the upper end of the V-belt 1 moves upwards and starts tensioning and rotating, and simultaneously the lower end of the V-belt 1 starts moving upwards, and the left side of the lower end of the V-belt 1 presses the sliding disc 2 and drives the sliding disc 2 to rotate, the sliding disc 2 moves leftwards, when the second ball 6 is in contact with the abutting block 20, the V-shaped belt 1 starts to transmit driving force to the limiting sleeve 4 through the driving wheel 5, the sliding disc 2 continues to move leftwards, the driving force is gradually increased, the belt conveyor can be started gradually in the process, when the abutting block 20 is located at different positions, the second fixing disc 15 is located at different positions correspondingly, the lower end of the V-shaped belt 1 is located at different heights, therefore, the change of different transmission ratios between the driving shaft 14 and the driven shaft 17 is generated, namely, the adjustment of the transmission ratios can be realized by adjusting the rotation of the motor, and the better control of the rotating speed of the belt conveyor is realized. When sliding disk 2 moves to the leftmost side, butt piece 20 is compressed to inside drive wheel 5, drive wheel 5 is the rigidity to second ball 6 and supports, second ball 6 and spherical recess's the lower butt, it is spacing from this to realize the transmission of drive wheel 5, drive wheel 5 drives spacing sleeve 4 through second ball 6 and rotates, spacing sleeve 4 and second fixed disk 15 drive driven shaft 17 rotate, driven shaft 17 drives belt conveyor and operates. This application has realized the zero load of motor through the cooperation of above-mentioned structure and has started, when the motor reaches certain rotational speed, realize the transmission of motor and belt conveyor, belt conveyor's the start degree of difficulty has been reduced greatly, only need match the motor of suitable power and can realize belt conveyor's normal operating, even when the rotational speed of motor makes sliding disc 2 just move to the leftmost side, can't drive belt conveyor smoothly, rated drive power has not yet been provided, can not harm the motor this moment, the V type area 1 tensile force that provides is not enough under this rotational speed continues to rotate, and V type area 1 skids appears, the motor continues normal operating, only need continue to improve motor speed under this kind of condition, further tensioning V type area 1, in order to provide bigger frictional force and transmit bigger drive power in order to realize belt conveyor's normal start.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features of the embodiments described above are not described, but should be considered as within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. A transmission mechanism for a belt conveyor, comprising: the driving shaft is used for driving the V-shaped belt and further driving the driven shaft, and the driven shaft is used for driving the belt conveyor; the device is characterized by further comprising a transmission mechanism, wherein the transmission mechanism is used for transmitting the driving force of the driving shaft to the driven shaft when the driving shaft reaches a certain rotating speed, the transmission mechanism comprises a driving end transmission mechanism and a driven end transmission mechanism, the driving end transmission mechanism is used for gradually tensioning the V-shaped belt when the driving shaft reaches a certain rotating speed, the driven end transmission mechanism is used for connecting the gradually tensioned V-shaped belt with the driven shaft in a transmission manner, the driving end transmission mechanism comprises a first fixed disc, a guide ring, a first spring, a centrifugal chute, a first ball, a guide block and a limiting disc, the first fixed disc is fixedly arranged at the left end of the driving shaft, the limiting disc is fixedly arranged at the right end of the driving shaft and used for guiding and limiting the first ball, the guide block is fixedly arranged on one side, far away from the axis of the driving shaft, of the guide ring is fixedly arranged in the middle of the driving shaft, the centrifugal sliding groove is arranged on the guide ring in a sliding manner, the guide ring and the centrifugal sliding groove are provided with a limiting part for limiting the rotation of the centrifugal sliding groove, the left end of the first spring is arranged on the right end of the guide ring, the right end of the centrifugal sliding groove is provided with a rebounding part matched with the right end of the first spring, the first ball is arranged in the sliding groove on the centrifugal sliding groove, the sliding groove and the limiting disc jointly form a first accommodating space for the first ball, the gap of one side, far away from the axis, of the first accommodating space is smaller than the gap of one side, close to the axis, so that the centrifugal sliding groove can be pushed to the left side when the first ball moves to one side, far away from the axis, under the action of centrifugal force, the first fixing disc and the centrifugal sliding groove jointly form a second accommodating space for accommodating a V-shaped belt, the V-shaped belt is arranged in the second accommodating space, and the gap of one side, far away from the axis, of the second accommodating space is larger than the gap of one side, close to the axis, when the centrifugal sliding groove moves leftwards, the upper end of the V-shaped belt can be pushed upwards; the driven end transmission mechanism comprises a second fixed disc, a sliding disc, a second spring, a limiting sleeve, a transmission wheel, a second ball and a fixed sleeve, the fixed sleeve is fixedly arranged at the right end of the driven shaft, the limiting sleeve is fixedly arranged at the left end of the driven shaft, the second fixed disc is fixedly arranged at the right end of the fixed sleeve, the sliding disc is slidably arranged on the fixed sleeve, the second spring is arranged between the limiting sleeve and the sliding disc and used for pressing the sliding disc towards the second fixed disc, the side, close to the axis of the driven shaft, of the sliding disc is provided with the transmission wheel, the second ball is arranged between the transmission wheel and the limiting sleeve, one side, close to the axis of the driven shaft, of the limiting sleeve is provided with a spherical groove for limiting the second ball, the transmission wheel is provided with a transmission groove with depth gradually increased along the circumferential direction, and the direction of the depth increase of the transmission groove is opposite to the rotation direction of the driven wheel, so that the driving pulley moves leftward when the V-belt is tensioned and reduces a frictional force between the sliding discs for the V-belt in a circumferential direction, the second ball is in contact with a shallower position of the driving groove when the sliding discs are positioned at the rightmost side, and the second ball is in contact with a deepest position of the driving groove when the sliding discs are slid to the leftmost side, and transmits a driving force of the V-belt from the driving pulley to the fixing sleeve.
2. The transmission mechanism for a belt conveyor according to claim 1, wherein the spherical recess is provided in plurality.
3. A transmission mechanism for a belt conveyor as in claim 2 wherein the second ball is provided in plurality.
4. A transmission mechanism for a belt conveyor as in claim 3 wherein the first ball is provided in plurality.
5. The transmission mechanism for a belt conveyor according to claim 3, wherein there are two spherical grooves, two second balls, two abutting blocks at the ends of the spherical grooves, one end of a third spring and a telescopic rod are provided at the abutting blocks, the other end of the third spring and the telescopic rod are provided at the ends of the spherical grooves, the third spring is sleeved on the telescopic rod, and a fourth spring is provided inside the telescopic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010613578.XA CN111731773B (en) | 2020-06-30 | 2020-06-30 | Transmission mechanism for belt conveyor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010613578.XA CN111731773B (en) | 2020-06-30 | 2020-06-30 | Transmission mechanism for belt conveyor |
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| CN111731773B true CN111731773B (en) | 2021-11-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08175637A (en) * | 1994-12-21 | 1996-07-09 | Bando Chem Ind Ltd | Belt driving device |
| JP2004231409A (en) * | 2003-02-03 | 2004-08-19 | Okuma Corp | Lift-up conveyor |
| CN201502672U (en) * | 2009-09-17 | 2010-06-09 | 浙江坤鸿机械设备有限公司 | Novel stepless speed change mechanism |
| CN201582359U (en) * | 2009-11-23 | 2010-09-15 | 浙江春风动力股份有限公司 | CVT transmission mechanism, motorcycle and all-terrain vehicle |
| CN102616532A (en) * | 2012-04-10 | 2012-08-01 | 安徽攀登重工股份有限公司 | Double-speed hydraulic soft starting device for belt conveyor |
| CN108995757A (en) * | 2018-07-04 | 2018-12-14 | 重庆宗申杰米科技有限公司 | Battery-operated motor cycle no-clutch stepless speed change driving system |
-
2020
- 2020-06-30 CN CN202010613578.XA patent/CN111731773B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08175637A (en) * | 1994-12-21 | 1996-07-09 | Bando Chem Ind Ltd | Belt driving device |
| JP2004231409A (en) * | 2003-02-03 | 2004-08-19 | Okuma Corp | Lift-up conveyor |
| CN201502672U (en) * | 2009-09-17 | 2010-06-09 | 浙江坤鸿机械设备有限公司 | Novel stepless speed change mechanism |
| CN201582359U (en) * | 2009-11-23 | 2010-09-15 | 浙江春风动力股份有限公司 | CVT transmission mechanism, motorcycle and all-terrain vehicle |
| CN102616532A (en) * | 2012-04-10 | 2012-08-01 | 安徽攀登重工股份有限公司 | Double-speed hydraulic soft starting device for belt conveyor |
| CN108995757A (en) * | 2018-07-04 | 2018-12-14 | 重庆宗申杰米科技有限公司 | Battery-operated motor cycle no-clutch stepless speed change driving system |
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