CN219812024U - Roller motor - Google Patents

Abstract

The utility model relates to the technical field of conveying devices, and discloses a roller motor, which comprises a roller and a driving piece, wherein a containing cavity is arranged in the roller, the driving piece is contained in the containing cavity, and the roller motor further comprises: the gear box is arranged in the accommodating cavity and is in transmission connection with the roller, the gear box comprises a first speed reduction assembly and a first support, the first speed reduction assembly comprises a first sun wheel, a first optical axis, a first planet wheel and a rolling piece, the first sun wheel is in transmission connection with the output end of the driving piece, the first optical axis is fixedly connected with the first support, the first planet wheel is sleeved on the first optical axis and meshed with the first sun wheel, and the rolling piece is arranged between the first optical axis and the first planet wheel. When the first planet wheel of the roller motor rotates, rolling friction is arranged between the first optical axis and the first planet wheel, friction resistance is reduced, abrasion is reduced, and power transmission efficiency is improved. In addition, the noise generated when the roller motor works can be reduced.

Description

Roller motor

Technical Field

The utility model relates to the technical field of conveying devices, in particular to a roller motor.

Background

Roller motors are often used in a variety of weight transfer scenarios and drive the rollers through a gear box. The existing gear box, in particular the planetary gear box, is usually directly sleeved on the optical axis, and the planetary gear can cause sliding friction between the surfaces when rotating, so that the friction resistance is large, and the stress condition of the gear box when working is complex, so that the abrasion is large when the planetary gear rotates and contacts with the optical axis, the efficiency is reduced, the noise is large, and the service life is shortened. In addition, due to the problem of machining precision, similar problems are caused by abrasion deviation of the planetary gears in specific production, and the power transmission efficiency of the roller motor is affected.

Disclosure of Invention

In view of the above, the utility model provides a roller motor to solve the problems of low power transmission efficiency and high noise of a gear box of the roller motor in the prior art.

The embodiment of the utility model provides a roller motor, which comprises a roller and a driving piece, wherein a containing cavity is arranged in the roller, the driving piece is contained in the containing cavity, and the roller motor further comprises:

the gear box is arranged in the accommodating cavity and is in transmission connection with the roller, the gear box comprises a first speed reduction assembly and a first support, the first speed reduction assembly comprises a first sun gear, a first optical axis, a first planet gear and a rolling piece, the first sun gear is in transmission connection with the output end of the driving piece, the first optical axis is fixedly connected with the first support, the first planet gear is sleeved on the first optical axis and is meshed with the first sun gear, and the rolling piece is arranged between the first optical axis and the first planet gear.

In an embodiment, the rolling element comprises a plurality of rolling elements which are uniformly distributed along the axial direction, and the rolling elements are at least one of balls, rolling needles, cylindrical rollers and tapered rollers.

In an embodiment, the gearbox further comprises:

the shell is internally provided with an annular gear, and the first planet gears are meshed with the annular gear and the first sun gear;

a second bracket;

the second speed reduction assembly comprises a second sun gear, a second optical axis and a second planet gear, the second sun gear is fixedly connected with the output end of the driving piece, the second optical axis is fixedly connected with the second support, and the second planet gear is sleeved on the second optical axis and meshed with the inner gear ring and the second sun gear; the first sun gear is located at one side of the second support, which is away from the second sun gear, and is fixedly connected with the second support.

In an embodiment, the first support is protruding to be equipped with the output shaft on the one side that deviates from first planet wheel, the gear box still includes the cover and locates first bearing and the bullet circle on the output shaft, the bullet circle is located first bearing with between the output shaft, first bearing or be equipped with on the output shaft and be used for placing the spacing groove of bullet circle.

In an embodiment, the roller motor further includes a tensioning mechanism disposed in the accommodating cavity and configured to drive the roller to rotate around the rotation axis, and the tensioning mechanism includes:

the connecting piece is fixedly connected with the output shaft;

the limiting piece comprises a bottom wall and a side wall arranged along the periphery of the bottom wall, wherein the side wall is provided with a mounting groove, and the bottom wall is provided with a through hole;

the fastener is penetrated through the through hole and is connected with the connecting piece in a threaded manner so that the side wall can be sleeved on the connecting piece;

and one side of the tensioning piece, which is away from the connecting piece, protrudes out of the mounting groove and can be propped against the roller.

In an embodiment, the length of the mounting groove is smaller than the length of the tensioning piece along the rotation axis direction; the tensioning piece deviates from be equipped with unsmooth continuous line on the one side of connecting piece.

In an embodiment, the connecting piece comprises a first section, a second section and a matching part, wherein the first section and the second section are connected along the direction of the rotation axis, the matching part is convexly arranged on the outer side wall of the first section, the diameter of the first section is smaller than that of the second section, a step surface is formed at the joint of the first section and the second section, the side wall is sleeved on the first section, and one end, far away from the bottom wall, of the side wall is propped against the step surface;

the cooperation portion includes first cooperation inclined plane, tensioning member sliding connection in cooperation portion, tensioning member includes the second cooperation inclined plane, the extending direction on second cooperation inclined plane with the slip direction slope setting of tensioning member, the second cooperation inclined plane parallel and laminate in first cooperation inclined plane.

In an embodiment, the roller motor further comprises a driving piece fixing mechanism and a roller supporting mechanism, wherein the driving piece fixing mechanism is fixedly connected to one end of the driving piece, which is far away from the gear box, and at least partially extends out of the accommodating cavity, and the driving piece fixing mechanism is used for fixing the driving piece so that the driving piece and the roller are arranged at intervals; the roller supporting mechanism is positioned at one end of the roller far away from the driving piece fixing mechanism and extends out of the accommodating cavity partially, and the roller supporting mechanism is used for supporting the roller.

In an embodiment, the driving piece includes a driving housing, the driving piece fixing mechanism includes a first fixing piece, a motor connecting piece and a motor connecting fitting piece, the first fixing piece extends out of the accommodating cavity, the first fixing piece and the motor connecting piece are in interference fit and flat connection, the motor connecting piece and the motor connecting fitting piece are mutually matched through a convex-concave structure, and the motor connecting fitting piece is in spline connection with the driving housing to fix the driving housing.

In an embodiment, the roller supporting mechanism comprises a second fixing member, an engagement sleeve and a second bearing sleeved on the second fixing member, wherein the second fixing member extends out of the accommodating cavity and is used for fixing, one side of the second bearing away from the second fixing member is abutted to the engagement sleeve, the engagement sleeve part is positioned in the accommodating cavity and is in interference fit with the roller, and the engagement sleeve part extends out of the accommodating cavity and is used for connecting a belt or a sleeve.

The roller motor comprises a roller, a driving piece and a gear box, wherein the first speed reduction assembly of the gear box comprises a rolling piece, the rolling piece is arranged between the first optical axis and the first planet gear, and when the first planet gear rotates, rolling friction is formed between the first optical axis and the first planet gear, so that friction resistance is reduced, abrasion is reduced, and power transmission efficiency is improved. In addition, the noise of the roller motor during operation can be reduced, and the problems of low power transmission efficiency and high noise of a gear box of the roller motor in the prior art are solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a drum motor according to an embodiment of the present utility model;

FIG. 2 is an exploded schematic view of the drum motor shown in FIG. 1;

FIG. 3 is a schematic view of the internal structure of the drum motor shown in FIG. 1;

FIG. 4 is an exploded perspective view of the transmission and drive members of the drum motor of FIG. 2;

FIG. 5 is an exploded perspective view of the tensioning mechanism in the drum motor of FIG. 2;

FIG. 6 is an exploded isometric view of the tensioning mechanism of FIG. 5 at an alternative angle;

FIG. 7 is a schematic perspective view of a tension member of the tensioning mechanism of FIG. 5;

FIG. 8 is an exploded perspective view of the drive member securing mechanism and drive housing of the drum motor of FIG. 2;

fig. 9 is an exploded perspective view of the drive member securing mechanism and drive housing of fig. 8 at an alternative angle.

The meaning of the labels in the figures is:

100. a drum motor;

10. a roller; 11. a receiving chamber;

20. a driving member; 21. a drive housing;

30. a gear box; 31. a first deceleration assembly; 311. a first sun gear; 312. a first optical axis; 313. a first planet; 314. a rolling member; 32. a first bracket; 321. an output shaft; 33. a housing; 34. a second bracket; 35. a second deceleration assembly; 351. a second sun gear; 352. a second optical axis; 353. a second planet wheel; 36. a first bearing; 37. a spring ring;

40. a tensioning mechanism; 41. a connecting piece; 411. a first section; 412. a second section; 413. a mating portion; 4131. a first mating ramp; 414. a step surface; 415. a housing chamber; 416. a connection part; 42. a limiting piece; 421. a bottom wall; 422. a sidewall; 423. a mounting groove; 424. a through hole; 425. a mounting port; 43. a tensioning member; 431. a limit protrusion; 432. a second mating ramp; 44. a fastener; 45. an elastic member; 46. a transition piece;

50. a driving member fixing mechanism; 51. a first fixing member; 52. a motor connection; 53. the motor is connected with the matching piece;

60. a roller support mechanism; 61. a second fixing member; 62. a connecting sleeve; 63. and a second bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail below with reference to the accompanying drawings, i.e., embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In order to describe the technical scheme of the utility model, the following description is made with reference to specific drawings and embodiments.

The embodiment of the utility model provides a roller motor, which solves the problems of low power transmission efficiency, high noise and short service life of a gear box of the roller motor in the prior art when the gear box works by reducing friction resistance in the gear box.

Referring to fig. 1 to 4, in an embodiment of the present utility model, a drum motor 100 includes a drum 10 and a driving member 20, a receiving chamber 11 is provided in the drum 10, and the driving member 20 is received in the receiving chamber 11. The drum motor 100 also includes a gear box 30 and a tensioning mechanism 40.

The gear box 30 is arranged in the accommodating cavity 11 and is in transmission connection with the roller 10, the gear box 30 comprises a first speed reduction assembly 31 and a first bracket 32 which are connected, the first speed reduction assembly 31 comprises a first sun gear 311, a first optical axis 312, a first planet gear 313 and a rolling element 314, the first sun gear 311 is in transmission connection with the output end of the driving element 20, the first optical axis 312 is fixedly connected with the first bracket 32, the first planet gear 313 is sleeved on the first optical axis 312 and is meshed with the first sun gear 311, and the rolling element 314 is arranged between the first optical axis 312 and the first planet gear 313.

The rolling friction is between the rolling element 314 and the first optical axis 312, and between the rolling element 314 and the first planet 313, so that the friction resistance can be reduced.

It will be appreciated that there is no direct contact between the drive member 20, the gearbox 30 and the drum 10. When the driving member 20 and the gear case 30 are both accommodated in the accommodating chamber 11, the space occupied by the drum motor 100 can be saved.

The roller motor 100 includes the roller 10, the driving member 20 and the gear case 30, and since the first reduction assembly 31 of the gear case 30 includes the rolling member 314, and the rolling member 314 is disposed between the first optical axis 312 and the first planet 313, when the first planet 313 rotates, rolling friction is formed between the first optical axis 312 and the first planet 313, so as to reduce friction resistance, thereby reducing wear and improving power transmission efficiency. In addition, the noise generated when the roller motor 100 works can be reduced, and the problems of low power transmission efficiency and high noise of the gear box of the roller motor in the prior art are solved.

Referring to fig. 4, in an embodiment of the present utility model, the rolling element 314 includes a plurality of rolling elements uniformly distributed along an axial direction, and the rolling elements are rolling pins. Therefore, the radial structure is compact, and the load bearing capacity is high; in addition, the needle roller is standardized in size, interchangeable and convenient to assemble and disassemble for replacement.

It will be appreciated that in other embodiments of the present utility model, the rolling elements may be of other structures, for example, the rolling elements may be at least one of balls, cylindrical rollers, and tapered rollers, and accordingly, the structure of the first optical axis 312 should be changed to accommodate the installation of the balls, or cylindrical rollers, or tapered rollers, without limitation.

Referring to fig. 1 to 4, in an embodiment of the present utility model, the gear box 30 further includes a housing 33, a second bracket 34, and a second reduction assembly 35.

An inner gear ring is provided in the housing 33, and the first planetary gear 313 is engaged with the inner gear ring and the first sun gear 311. The second bracket 34 is spaced apart from the housing 33. The second speed reduction assembly 35 comprises a second sun gear 351, a second optical axis 352 and a second planet gear 353, the second sun gear 351 is fixedly connected to the output end of the driving piece 20, the second optical axis 352 is fixedly connected to the second bracket 34, and the second planet gear 353 is sleeved on the second optical axis 352 and meshed with the inner gear ring and the second sun gear 351; the first sun gear 311 is located at a side of the second bracket 34 facing away from the second sun gear 351 and is fixedly connected to the second bracket 34.

That is, in the present embodiment, the gear box 30 includes a two-stage reduction assembly. It will be appreciated that in other embodiments of the present utility model, the gearbox 30 may be provided with more levels of reduction assemblies depending on the needs of the application, without limitation. For example, if the third speed reduction assembly is provided, the gear box 30 further includes a third support, the third speed reduction assembly should include a third sun gear, a third optical axis and a third planet gear, the third sun gear is fixedly connected to a side of the first support 32 facing away from the first sun gear 311, the third optical axis is fixedly connected to the third support, and the third planet gear is sleeved on the third optical axis and engaged with the ring gear and the third sun gear.

It can be appreciated that the rolling element 314 may be disposed between the second optical axis 352 and the second planetary gear 353 to replace the original sliding friction with rolling friction, so as to further improve the transmission efficiency and reduce the noise.

Referring to fig. 2 and 4, in an embodiment of the present utility model, an output shaft 321 is protruded on a side of the first support 32 facing away from the first planet gear 313, the gear box 30 further includes a first bearing 36 and a spring ring 37 sleeved on the output shaft 321, the spring ring 37 is located between the first bearing 36 and the output shaft 321, and a limiting groove for placing the spring ring 37 is formed on the first bearing 36. As such, the first bearing 36 may support the output shaft 321; in addition, the first bearing 36 and the elastic ring 37 are matched, so that the radial clearance elimination function can be realized, the shaking of the output shaft 321 in the rotation process is reduced as much as possible, and the stability is improved.

It should be understood that in other embodiments of the present utility model, the limiting groove may be provided on the output shaft 321, which is not limited herein.

The operation process of the drum motor 100 is as follows: the output end of the driving member 20 rotates around the rotation axis L and drives the second sun gear 351 to rotate, and each of the second planetary gears 353 rotates and revolves around the rotation axis L, thereby driving the second bracket 34 to rotate around the rotation axis L, the first sun gear 311 synchronously rotates with the second bracket 34, and each of the first planetary gears 313 rotates and revolves around the rotation axis L, thereby driving the first bracket 32 to rotate around the rotation axis L, and the tensioning mechanism connected to the first bracket 32 synchronously rotates.

Wherein the rotation axis L overlaps the central axis of the drum 10.

Referring to fig. 2, 3, 5 and 6, in one embodiment of the present utility model, the roller motor 100 further includes a tensioning mechanism 40 disposed in the accommodating cavity 11 and configured to rotate the roller 10 about the rotation axis L, wherein the tensioning mechanism 40 includes a connecting member 41, a limiting member 42, a fastening member 44 and a tensioning member 43.

The connecting piece 41 is fixedly connected to the output shaft 321, and the connecting piece 41 can also rotate around the rotation axis L along with the output shaft 321.

The limiting member 42 includes a bottom wall 421 and a side wall 422 disposed along the periphery of the bottom wall 421, the side wall 422 is provided with a mounting groove 423, and the bottom wall 421 is provided with a through hole 424.

The fastener 44 is inserted through the through hole 424 and is screwed to the connecting member 41, so that the sidewall 422 can be sleeved on the connecting member 41. The assembly and disassembly are convenient, and the limiting piece 42 can rotate around the rotation axis L along with the connecting piece 41.

The tensioning member 43 is engaged with the mounting groove 423, and one side of the tensioning member 43 away from the connecting member 41 protrudes from the mounting groove 423 and can be abutted against the roller 10. In this way, a reliable friction force is generated between the tensioning member 43 and the drum 10 to achieve a fixed connection, and the tensioning mechanism 40 simultaneously acts to transmit power and to provide support for the gearbox 30, that is to say, the drum 10 is driven by the tensioning mechanism 40 and rotates about the rotation axis L.

In order to improve the stability of the connection between the tension member 43 and the drum 10, referring to fig. 5 to 7, in one embodiment of the present utility model, the length of the mounting groove 423 is smaller than the length of the tension member 43 in the direction of the rotation axis L; the tensioning member 43 is provided with a relief-like texture on the side facing away from the connecting member 41. As such, when the tension member 43 is placed in the mounting groove 423, the tension member 43 is pressed and increases the radial pressure to the drum 10. Furthermore, since the side of the tension member 43 facing away from the connection member 41 is roughened, the radial pressure on the drum 10 can be increased as well.

It will be appreciated that in other embodiments of the present utility model, the length of the mounting groove 423 may be the same as the length of the tension member 43 along the rotation axis L, and the radial pressure of the rotation member may be increased by increasing the roughness of the tension member 43 toward the drum 10, for example, by increasing the complexity or depth of the grain, etc., without limitation.

Further, the number of the mounting grooves 423 on the sidewall 422 is plural, and the plurality of mounting grooves 423 are uniformly distributed along the circumference of the sidewall 422. Correspondingly, the number of the tension members 43 is plural and placed in the corresponding mounting groove 423.

It is understood that in other embodiments of the present utility model, the number of the tensioning members 43 may be other, and the number of the tensioning members 43 may be increased or decreased according to the friction force.

In this embodiment, referring to fig. 5 and 6, the side wall 422 includes a plurality of spaced protruding columns, a groove is disposed on a side of each protruding column facing the adjacent protruding column, and a mounting groove 423 having a mounting opening 425 is defined by any groove and the opposite groove. The tensioning piece 43 comprises limiting protrusions 431 arranged on two sides at intervals, the limiting protrusions 431 are clamped with corresponding grooves, and the tensioning piece 43 can be movably inserted into the mounting groove 423 through the mounting opening 425. Therefore, the groove can play a role in installation guide and limit on the limit protrusion 431 contained in the groove, so that the stability of connection between the tensioning piece 43 and the limit piece 42 is improved, the falling risk of the tensioning piece 43 is reduced, and the assembly and the disassembly are simple.

It will be appreciated that the mounting of the tension element 43 should be completed before the stop element 42 is assembled with the connector 41.

Referring to fig. 3 and fig. 5 to fig. 7, in an embodiment of the utility model, the connecting member 41 includes a first section 411 and a second section 412 connected along a direction of the rotation axis L, and a mating portion 413 protruding on an outer side wall of the first section 411, a diameter of the first section 411 is smaller than that of the second section 412, a step surface 414 is formed at a connection portion of the first section 411 and the second section 412, the side wall 422 is sleeved on the first section 411, and an end of the side wall 422 away from the bottom wall 421 abuts against the step surface 414.

The fitting portion 413 includes a first fitting inclined surface 4131, the tensioning member 43 is slidably connected to the fitting portion 413, the tensioning member 43 includes a second fitting inclined surface 432, an extending direction of the second fitting inclined surface 432 is obliquely set with a sliding direction of the tensioning member 43, and the second fitting inclined surface 432 is parallel to and attached to the first fitting inclined surface 4131. Thus, when the limiting piece 42 and the connecting piece 41 are assembled, the step surface 414 can limit the installation of the limiting piece 42, so that the situation that the limiting piece 42 and the connecting piece 41 are connected too tightly or not in place is avoided, and the proper friction resistance between the tensioning piece 43 and the roller 10 is ensured; in addition, the first matching inclined plane 4131 and the second matching inclined plane 432 are attached, so that the assembly and disassembly of the limiting piece 42 and the connecting piece 41 can be guided and limited under the pushing of external force, and the operation is simple and convenient.

In the present embodiment, the sliding direction of the tension member 43 is parallel to the rotation axis L.

In the present embodiment, the connecting member 41 includes a plurality of engaging portions 413, and the plurality of engaging portions 413 are uniformly distributed along the axial direction of the first section 411 to accommodate the plurality of tensioning members 43, so that the tensioning members 43 are uniformly distributed along the axial direction, and the radial pressure of the tensioning mechanism 40 on the drum 10 is uniformly distributed. Wherein, along the sliding direction of the tensioning member 43, the height from the end of the engaging portion 413 near the bottom wall 421 to the end of the engaging portion 413 near the second section 412 is gradually increased.

In addition, the limiting protrusion 431 of the tensioning member 43 and the second matching inclined surface 432 enclose a sliding groove, the matching portion 413 can be accommodated in the sliding groove, and when the limiting member 42 and the tensioning member 43 are installed, guiding action can be achieved through sliding connection of the matching portion 413 and the sliding groove, and the tensioning member 43 is limited, so that accurate installation is ensured.

Referring to fig. 3, 5 and 6, in an embodiment of the present utility model, the first section 411 and the second section 412 are each provided with a receiving cavity 415, the connecting member 41 further includes a connecting portion 416 disposed in the receiving cavity 415, and the fastening member 44 is disposed through the through hole 424 and is screwed to the connecting portion 416. Thus, the simple connecting structure can be realized through the threaded connection between the bottom wall 421 and the connecting part 416, and the disassembly and assembly are convenient.

Wherein the length of the tensioning member 43 is slightly greater than the length of the mating portion 413; the fastener 44 is a bolt and nut. When the tensioning mechanism 40 is mounted, the bottom wall 421 is pressed against the tensioning member 43 by tightening the bolt and nut, and the tensioning member 43 is moved in a direction away from the connecting member 41, i.e., in a vertical direction, along the fitting portion 413 under the pressing of the bottom wall 421. Since the first mating inclined surface 4131 is an inclined surface, the tension member 43 is pressed during the movement of the tension member 43 in the horizontal direction, the pressure to the rotation member is increased, and the rotation member is rotated by the friction force generated by the rough surface.

In addition, the first section 411, the second section 412, the matching part 413 and the connecting part 416 are integrally formed, so that the process is simple, the installation is simple and convenient, and timely replacement is convenient.

Referring to fig. 2, 5 and 6, in an embodiment of the present utility model, the tensioning mechanism 40 further includes an elastic member 45 and a transition piece 46 received in the receiving cavity 415, the elastic member 45 is sleeved on the transition piece 46 and engaged with the second section 412, and the transition piece 46 is used for connecting with the output shaft 321 of the driving member 20. In this way, the elastic member 45 can play a role in damping, and prevent external forces such as vibration received by the connecting member 41 from being transmitted to the transition connecting member 46 and the output shaft 321.

In the present embodiment, the transition piece 46 and the elastic piece 45, and the elastic piece 45 and the second section 412 are engaged through a plurality of concave-convex structures, so that the relative positions of the transition piece 46, the elastic piece 45, and the second section 412 are unchanged, and the driving piece 20 connected to the transition piece 46 can drive the connecting piece 41 to rotate around the rotation axis L.

Referring to fig. 2, 3, 8 and 9, in one embodiment of the present utility model, the roller motor 100 further includes a driving member fixing mechanism 50 and a roller supporting mechanism 60, wherein the driving member fixing mechanism 50 is fixedly connected to an end of the driving member 20 away from the gear box 30 and extends at least partially out of the accommodating cavity 11, and the driving member fixing mechanism 50 is used for fixing the driving member 20 so as to space the driving member 20 from the roller 10; the roller supporting mechanism 60 is located at an end of the roller 10 remote from the driving member fixing mechanism 50 and extends partially out of the accommodating chamber 11, and the roller supporting mechanism 60 is used for supporting the roller 10. Thus, the relative position of the driving member 20 accommodated in the accommodating chamber 11 of the drum 10 is kept unchanged, and the smoothness and stability of rotation of the drum 10 can be ensured.

In this embodiment, referring to fig. 2, 3, 8 and 9, the driving member 20 includes a driving housing 21, the driving member fixing mechanism 50 includes a first fixing member 51, a motor connecting member 52 and a motor connecting fitting member 53, the first fixing member 51 extends out of the accommodating cavity 11, the first fixing member 51 and the motor connecting member 52 are in interference fit and flat connection, the motor connecting member 52 and the motor connecting fitting member 53 are mutually matched through a convex-concave structure, and the motor connecting fitting member 53 is in spline connection with the driving housing 21 to fix the driving housing 21.

It will be appreciated that the first fixing member 51 extends outside the housing chamber 11 and may be fixedly connected to the external support by means of a threaded connection or a snap connection.

Specifically, the driving member 20 is a motor. The first fixing piece 51 is hexagonal, the motor connecting piece 52 has certain micro-deformation capability, a hexagonal channel is formed in the motor connecting piece 52, the first fixing piece 51 penetrates through the hexagonal channel, and the first fixing piece 51 is in interference fit with the motor connecting piece 52 and is in flat connection, so that the motor connecting piece 52 cannot rotate.

Wherein, the motor connecting piece 52 and the motor connecting fitting piece 53 are mutually matched through a plurality of convex-concave structures, thereby realizing the fixation of the motor connecting fitting piece 53. Specifically, the outer side wall of the motor connecting piece 52 is convexly provided with a plurality of protruding columns, the motor connecting matching piece 53 is sleeved on the motor connecting piece 52, that is, the motor connecting matching piece 53 is in a near annular shape, and the inner side wall of the motor connecting matching piece 53 is provided with grooves matched with the protruding columns. It will be appreciated that in other embodiments of the present utility model, a protrusion may be added on the inner side wall of the motor connecting fitting 53, and a groove adapted to the protrusion may be added on the outer side wall of the motor connecting fitting 52, which is not limited herein. In addition, the motor connecting piece 52 has a certain elasticity, and can offset part of the external force influence from the first fixing piece 51, so that the first fixing piece 51 is prevented from being transmitted to the motor by external force such as vibration, and the damping effect is realized.

In addition, the motor connection fitting 53 is spline-connected with the driving housing 21 so as to ensure that the motor itself is fixed by the first fixing member 51 and cannot rotate, avoiding direct contact between the driving member 20 and the drum 10.

In this embodiment, referring to fig. 1 to 3, the roller supporting mechanism 60 includes a second fixing member 61, a linking sleeve 62 and a second bearing 63 sleeved on the second fixing member 61, the second fixing member 61 extends out of the accommodating cavity 11 and is used for fixing, one side of the second bearing 63 facing away from the second fixing member 61 abuts against the linking sleeve 62, the linking sleeve 62 is partially located in the accommodating cavity 11 and is in interference fit with the roller 10, and the linking sleeve 62 is partially extended out of the accommodating cavity 11 and is used for connecting a belt or a sleeve.

It will be appreciated that the second fixing member 61 extends outside the housing chamber 11 and may be fixedly connected to the external support by means of a screw connection or a snap connection.

Since the adapter sleeve 62 is partially located in the receiving cavity 11 and is in interference fit with the drum 10, a fixed connection between the adapter sleeve 62 and the drum 10 is achieved, so that the adapter sleeve 62 and the drum 10 can rotate synchronously. The second fixing member 61 and the second bearing 63 sleeved on the second fixing member 61 are mainly used for supporting the drum 10. In practical applications, a roller 10 with a motor outputting power is usually connected to a plurality of sleeves without power to achieve reasonable distribution of power, for example, when the roller 10 rotates around a rotation axis L, since the adapter sleeve 62 is fixedly connected to the roller 10, the adapter sleeve 62 is driven and synchronously starts to rotate, and a belt or other connecting member 41 is sleeved on the end of the adapter sleeve 62 far from the roller 10 to drive the unpowered sleeves to synchronously rotate, so that the object is conveyed.

Principle of the above-described drum motor 100: the fixing and supporting of one end of the driving piece 20 are realized through the driving piece fixing mechanism 50, when the driving piece 20 outputs power, the power is transmitted to the gear box 30, and the output shaft 321 of the gear box 30 drives the tensioning mechanism 40 to rotate. Because of the installation structure design of the limiting piece 42 and the tensioning piece 43, enough friction force can be generated between the tensioning piece 43 and the inner wall of the roller 10, and the tensioning mechanism 40 can drive the roller 10 to rotate. A drum support mechanism 60 is provided at the other end of the drum 10 and is connected to the unpowered drums 10 to effect transmission of power to the plurality of unpowered drums 10.

It will be appreciated that the tensioning mechanism 40 and the driving member fixing mechanism 50 are used for supporting the driving member 20 and the gear box 30 on both sides, that is, the motor and the gear box 30 on both sides, so that the installation is convenient, and when the length requirements of the motor and the gear box 30 are changed due to different motor and transmission ratio requirements, the installation requirements of the motor and the gear box 30 with various length dimensions can be met by only loosening the bolts of the tensioning mechanism 40 and adjusting the positions of the bolts.

The roller motor 100 includes the roller 10, the driving member 20 and the gear case 30, and since the first reduction assembly 31 of the gear case 30 includes the rolling member 314, and the rolling member 314 is disposed between the first optical axis 312 and the first planet 313, when the first planet 313 rotates, rolling friction is formed between the first optical axis 312 and the first planet 313, so as to reduce friction resistance, thereby reducing wear and improving power transmission efficiency. In addition, the noise generated when the roller motor 100 works can be reduced, and the problems of low power transmission efficiency and high noise of the gear box of the roller motor in the prior art are solved.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a cylinder motor, includes cylinder and driving piece, its characterized in that, be equipped with in the cylinder and hold the chamber, the driving piece accept in hold the intracavity, cylinder motor still includes:

the gear box is arranged in the accommodating cavity and is in transmission connection with the roller, the gear box comprises a first speed reduction assembly and a first support, the first speed reduction assembly comprises a first sun gear, a first optical axis, a first planet gear and a rolling element, the first sun gear is in transmission connection with the output end of the driving element, the first optical axis is fixedly connected with the first support, the first planet gear is sleeved on the first optical axis and is meshed with the first sun gear, and the rolling element is arranged between the first optical axis and the first planet gear.

2. The drum motor as claimed in claim 1, wherein the rolling member includes a plurality of rolling bodies uniformly distributed in an axial direction, the rolling bodies being at least one of balls, needles, cylindrical rollers, and tapered rollers.

3. The drum motor as claimed in claim 1, wherein the gear box further comprises:

the shell is internally provided with an annular gear, and the first planet gears are meshed with the annular gear and the first sun gear;

a second bracket;

the second speed reduction assembly comprises a second sun gear, a second optical axis and a second planet gear, the second sun gear is fixedly connected with the output end of the driving piece, the second optical axis is fixedly connected with the second support, and the second planet gear is sleeved on the second optical axis and meshed with the inner gear ring and the second sun gear; the first sun gear is located at one side of the second support, which is away from the second sun gear, and is fixedly connected with the second support.

4. A drum motor according to claim 3, wherein an output shaft is protruded on one side of the first support away from the first planet gear, the gear box further comprises a first bearing and a spring ring sleeved on the output shaft, the spring ring is located between the first bearing and the output shaft, and a limit groove for placing the spring ring is formed in the first bearing or the output shaft.

5. The drum motor as claimed in claim 4, further comprising a tensioning mechanism provided in the accommodating chamber for rotating the drum around the rotation axis, the tensioning mechanism comprising:

the connecting piece is fixedly connected with the output shaft;

the limiting piece comprises a bottom wall and a side wall arranged along the periphery of the bottom wall, wherein the side wall is provided with a mounting groove, and the bottom wall is provided with a through hole;

the fastener is penetrated through the through hole and is connected with the connecting piece in a threaded manner so that the side wall can be sleeved on the connecting piece;

and one side of the tensioning piece, which is away from the connecting piece, protrudes out of the mounting groove and can be propped against the roller.

6. The drum motor according to claim 5, wherein a length of the mounting groove is smaller than a length of the tension member in the rotation axis direction; the tensioning piece deviates from be equipped with unsmooth continuous line on the one side of connecting piece.

7. The drum motor according to claim 5, wherein the connecting member comprises a first section and a second section connected in the rotation axis direction, and a mating portion protruding from an outer side wall of the first section, a diameter of the first section is smaller than a diameter of the second section, a step surface is formed at a connection portion of the first section and the second section, the side wall is sleeved on the first section, and an end of the side wall away from the bottom wall is abutted against the step surface;

the cooperation portion includes first cooperation inclined plane, tensioning member sliding connection in cooperation portion, tensioning member includes the second cooperation inclined plane, the extending direction on second cooperation inclined plane with the slip direction slope setting of tensioning member, the second cooperation inclined plane parallel and laminate in first cooperation inclined plane.

8. A drum motor according to claim 3, further comprising a driving member fixing mechanism fixedly connected to an end of the driving member remote from the gear case and extending at least partially out of the accommodation chamber, and a drum supporting mechanism for fixing the driving member so that the driving member is spaced apart from the drum; the roller supporting mechanism is positioned at one end of the roller far away from the driving piece fixing mechanism and extends out of the accommodating cavity partially, and the roller supporting mechanism is used for supporting the roller.

9. The drum motor as claimed in claim 8, wherein the driving member includes a driving housing, the driving member fixing mechanism includes a first fixing member, a motor connecting member, and a motor connecting fitting member, the first fixing member extends to the outside of the receiving chamber, the first fixing member and the motor connecting member are interference-fitted and flat-connected, the motor connecting member and the motor connecting fitting member are fitted to each other through a male-female structure, and the motor connecting fitting member is spline-connected with the driving housing to fix the driving housing.

10. The drum motor as claimed in claim 8, wherein the drum supporting mechanism includes a second fixing member, an engagement sleeve and a second bearing sleeved on the second fixing member, the second fixing member portion extending out of the accommodation chamber and being used for fixing, a side of the second bearing facing away from the second fixing member being abutted against the engagement sleeve, the engagement sleeve portion being located in the accommodation chamber and being interference-fitted with the drum, the engagement sleeve portion extending out of the accommodation chamber and being used for connecting a belt or a sleeve.