A connection structure of a drum and a motor

Abstract

The utility model discloses a kind of connecting structure of drum and motor, it is related to electric drum technical field, including tensioning structure, the inner side of the tensioning structure is equipped with motor connecting hole, the motor connecting hole is used to and the output shaft of motor body in electric drum is connected, the outer side of the tensioning structure is equipped with multiple convex hulls, the convex hull can be with the inner wall of drum body in the electric drum is resisted against.The utility model is equipped with tensioning structure, the center of tensioning structure is provided with motor connecting hole, for and motor body connection, the outer side of tensioning structure is equipped with convex hull, for and the inner wall of drum body is resisted against, to be able to realize the connection between the output shaft of motor body and drum body, simple structure, manufacturing cost is low, and it is convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of electric roller technology, and in particular to a connection structure between a roller and a motor. Background Technology

[0002] An electric roller is a drive device that houses the motor inside the roller body. It features a compact structure, small footprint, high transmission efficiency, and good sealing. Roller motors can be used as a power source for belt conveyors and are widely used in various industries.

[0003] The connection between the roller and the motor is a very important process in the packaging of roller motors, and it is a crucial link that can directly affect the performance of the motor.

[0004] Traditionally, the connection between the roller and the motor is mostly achieved by tightening elastic components with bolts, causing these components to deform and thus tightening the inner wall of the roller. This structure is complex and costly, and installation is also relatively complicated, resulting in high material and labor costs.

[0005] Therefore, there is an urgent need in the field for a novel connection structure between the roller and the motor to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a connection structure between a roller and a motor to solve the problems existing in the prior art. The structure is simple, the manufacturing cost is low, and it is easy to install.

[0007] To achieve the above objectives, this utility model provides the following solution:

[0008] This utility model discloses a connection structure between a roller and a motor, including a tensioning structure. The inner side of the tensioning structure is provided with a motor connection hole, which is used to connect with the output shaft of the motor body in the electric roller. The outer side of the tensioning structure is provided with multiple protrusions, which can abut against the inner wall of the roller body in the electric roller.

[0009] Preferably, the tensioning structure includes a shaft extension spline ring, a spline ring sleeve, a tolerance ring fixing seat, and a tolerance ring body arranged sequentially from the inside to the outside. The center of the shaft extension spline ring is the motor connection hole, and multiple protrusions are evenly distributed on the outer wall of the tolerance ring body.

[0010] Preferably, the motor connection hole is an internal hexagonal hole, and the end of the output shaft of the motor body is a hexagonal prism structure, so that the output shaft of the motor body can be inserted into the motor connection hole.

[0011] Preferably, the outer wall of the shaft extension spline ring is circumferentially distributed with a plurality of first external splines, and the inner wall of the spline ring sleeve is circumferentially distributed with a plurality of first internal keyways. The number of first external splines is the same as the number of first internal keyways, and the first external splines are disposed in the first internal keyways.

[0012] Preferably, the outer wall of the spline ring sleeve has a plurality of second external splines evenly distributed around its circumference, and the inner wall of the tolerance ring fixing seat has a plurality of second internal keyways evenly distributed around its circumference. The number of second external splines is the same as the number of second internal keyways, and the second external splines are disposed in the second internal keyways.

[0013] Preferably, the outer wall of the tolerance ring fixing seat is provided with a tolerance ring mounting groove, and the tolerance ring body is installed in the tolerance ring mounting groove.

[0014] Preferably, multiple mounting groove baffles are evenly distributed around the circumference of both sides of the tolerance ring mounting groove.

[0015] Preferably, the tolerance ring mounting groove is provided with a mounting groove mating block, and the tolerance ring body is provided with a tolerance ring opening. When the tolerance ring body is installed on the tolerance ring mounting groove, the mounting groove mating block is located at the tolerance ring opening.

[0016] Preferably, the tolerance ring body is made of 304 stainless steel.

[0017] Preferably, the spline ring sleeve is made of polyurethane.

[0018] The present invention achieves the following technical advantages over the prior art:

[0019] In actual installation, this invention only requires inserting the output shaft of the motor body into the motor connection hole of the tensioning structure, and then abutting the protrusion on the outer wall of the tensioning structure against the inner wall of the roller body. The contact between the protrusion and the inner wall of the roller body achieves an interference fit, thus realizing the transmission connection between the motor body and the roller body. This invention has a simple overall structure, resulting in low manufacturing costs. Furthermore, it eliminates the need for bolts or other fastening mechanisms, making installation convenient. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1An external schematic diagram of the electric roller installed in the connection structure between the roller and the motor according to an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram showing the position of the connection structure between the roller and the motor installed in the electric roller according to an embodiment of this utility model;

[0023] Figure 3 This is a cross-sectional view of the connection structure between the roller and the motor installed in the electric roller according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection structure between the roller and the motor when it is installed onto the motor body according to an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the tensioning structure in the connection structure between the roller and the motor in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the spindle ring extending from the shaft in the connection structure between the roller and the motor in an embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram of the spline ring sleeve in the connection structure between the roller and the motor in an embodiment of this utility model;

[0028] Figure 8 This is a schematic diagram of the tolerance ring fixing seat in the connection structure between the roller and the motor in an embodiment of this utility model;

[0029] Figure 9 This is a schematic diagram of the tolerance ring body in the connection structure between the roller and the motor in an embodiment of this utility model;

[0030] In the diagram: 100-Electric roller; 101-Roller body; 102-Motor body; 200-Tensioning structure; 201-Shaft extension spline ring; 2011-Motor connection hole; 2012-First external spline; 202-Spline ring sleeve; 2021-First inner keyway; 2022-Second external spline; 203-Tolerance ring fixing seat; 2031-Second inner keyway; 2032-Tolerance ring mounting groove; 2033-Mounting groove baffle; 2034-Mounting groove mating block; 204-Tolerance ring body; 2041-Protrusion; 2042-Tolerance ring opening. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] The purpose of this invention is to provide a connection structure between a roller and a motor to solve the problems existing in the prior art. The structure is simple, the manufacturing cost is low, and it is easy to install.

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1-9 As shown, this utility model provides a connection structure between a roller and a motor, applied to an existing electric roller 100, for realizing the transmission connection between the roller body 101 and the motor body 102 inside the roller body 101. Specifically, it includes a tensioning structure 200, with a motor connection hole 2011 on its inner side, which is used to connect to the output shaft of the motor body 102 in the electric roller 100. The outer side of the tensioning structure 200 has multiple protrusions 2041, which are evenly distributed in the circumferential direction of the outer wall of the tensioning structure 200. The protrusions 2041, by their own weight and elasticity, can abut against the inner wall of the roller body 101 in the electric roller 100, thereby achieving an interference fit between the tensioning structure 200 and the roller body 101, and ultimately realizing the transmission connection between the motor body 102 and the roller body 101 using the tensioning structure 200.

[0035] During actual installation, simply insert the output shaft of the motor body 102 into the motor connection hole 2011 in the tensioning structure 200. The protrusions 2041 on the outer wall of the tensioning structure 200 will abut against the inner wall of the roller body 101, thus forming an interference fit and achieving relative fixation between the tensioning structure 200 and the roller body 101. When the motor body 102 is started, the output shaft of the motor body 102 can drive the roller body 101 to rotate through the tensioning mechanism.

[0036] In this embodiment, the tensioning structure 200 includes, from the inside out, a shaft extension spline ring 201, a spline ring sleeve 202, a tolerance ring fixing seat 203, and a tolerance ring body 204. The center of the shaft extension spline ring 201 is the motor connection hole 2011 of the tensioning structure 200, used for connection to the output shaft of the motor body 102. The outer wall of the tolerance ring body 204 has a plurality of protrusions 2041 of the tensioning structure 200 evenly distributed around its circumference, used to abut against the inner wall of the roller body 101.

[0037] In this embodiment, as Figure 6 As shown, the motor connection hole 2011 is an internal hexagonal hole, and the end of the output shaft of the motor body 102 has a hexagonal prism structure. The cross-sectional dimensions of the output shaft of the motor body 102 match the dimensions of the motor connection hole 2011, allowing the output shaft of the motor body 102 to be inserted into the motor connection hole 2011. To ensure a stable connection between the output shaft of the motor body 102 and the shaft extension spline ring 201, an interference fit can be used between the motor connection hole 2011 and the output shaft of the motor body 102.

[0038] In this embodiment, as Figure 6 and Figure 7 As shown, the outer wall of the shaft extension spline ring 201 is circumferentially distributed with a plurality of first external splines 2012, and the inner wall of the spline ring sleeve 202 is circumferentially distributed with a plurality of first internal keyways 2021. The number of first external splines 2012 and the number of first internal keyways 2021 are the same and their distribution positions correspond one-to-one. Each first external spline 2012 can be set in the corresponding first internal keyway 2021, thereby realizing the fixation between the shaft extension spline ring 201 and the spline ring sleeve 202.

[0039] In this embodiment, as Figure 7 and Figure 8 As shown, multiple second external splines 2022 are evenly distributed circumferentially on the outer wall of the spline ring sleeve 202. In this embodiment, the second external splines 2022 are actually the outer side of the first inner keyway 2021. The advantage of this design is that it can reduce the thickness of the spline ring sleeve 202, thereby reducing manufacturing costs. Multiple second inner keyways 2031 are evenly distributed circumferentially on the inner wall of the tolerance ring fixing seat 203. The number of second external splines 2022 is the same as the number of second inner keyways 2031, and their distribution positions correspond one-to-one. Each second external spline 2022 is set in a corresponding second inner keyway 2031, thereby realizing the fixation between the spline ring sleeve 202 and the tolerance ring fixing seat 203.

[0040] In this embodiment, as Figure 8 and Figure 9As shown, the outer wall of the tolerance ring fixing seat 203 is provided with an annular tolerance ring mounting groove 2032, and the tolerance ring body 204 is an unclosed annular structure. The tolerance ring body 204 can be installed in the tolerance ring mounting groove 2032, thereby realizing the connection between the tolerance ring fixing seat 203 and the tolerance ring body 204.

[0041] In this embodiment, from Figure 8 As can be seen, multiple mounting groove baffles 2033 are evenly distributed on both sides of the tolerance ring mounting groove 2032. The mounting groove baffles 2033 on both sides abut against the two sides of the tolerance ring body 204, and the tolerance ring body 204 moves to both sides (i.e., in the axial direction of the tolerance ring fixing seat 203).

[0042] In this embodiment, as Figure 8 and Figure 9 As shown, the tolerance ring mounting groove 2032 is provided with a mounting groove mating block 2034, and the tolerance ring body 204 is provided with a tolerance ring opening slit 2042. When the tolerance ring body 204 is installed on the tolerance ring mounting groove 2032, the mounting groove mating block 2034 is located at the tolerance ring opening slit 2042. The purpose of this arrangement is to prevent the tolerance ring body 204 from rotating at a certain angle due to friction with the inner wall of the roller body 101.

[0043] In this embodiment, the tolerance ring body 204 is made of 304 stainless steel, which has good plastic deformation capability. There are two purposes for choosing this material: first, it facilitates the tolerance ring body 204 to be snapped onto the tolerance ring mounting groove 2032; second, it makes the protrusion 2041 itself have a certain elasticity. When the protrusion 2041 is compressed by the inner wall of the roller body 101, it will generate a radial rebound force, tightly clamping the inner wall of the roller body 101, thereby realizing the connection between the roller body 101 and the tensioning structure 200.

[0044] In this embodiment, the spline ring sleeve 202 is made of polyurethane, and its function is to reduce the vibration and noise generated by the frequent start and stop of the motor body 102.

[0045] Furthermore, the materials of the shaft extension spline ring 201 and the tolerance ring fixing seat 203 in this embodiment include, but are not limited to, existing zinc alloys.

[0046] This invention breaks away from the traditional technical solution of tightening elastic parts with bolts to achieve tension. Instead, it uses a spline structure connection, which is easy to assemble, has a reliable and simple structure, and saves material and labor costs.

[0047] Furthermore, regarding the connection relationship between the motor body 102 and the drum body 101, as follows: Figure 2As shown, each end of the roller body 101 is connected to a roller shaft via bearings, and the motor housing of the motor body 102 is fixedly connected to one of the roller shafts. Of course, these are all common connection methods for existing electric rollers 100, and are not limited to this one method. Moreover, this is not an innovation of this embodiment, so it will not be described in detail.

[0048] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then, unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0051] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this utility model to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0052] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0053] It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0054] It should also be noted that in the embodiments of this application, the same reference numerals are used to denote the same component or the same part.

[0055] Any adaptive changes made according to actual needs are within the protection scope of this utility model.

[0056] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A connection structure between a roller and a motor, characterized in that: The device includes a tensioning structure (200), the inner side of which is provided with a motor connection hole (2011) for connecting with the output shaft of the motor body (102) in the electric roller (100). The outer side of the tensioning structure (200) is provided with a plurality of protrusions (2041), which can abut against the inner wall of the roller body (101) in the electric roller (100).

2. The connection structure between the roller and the motor according to claim 1, characterized in that: The tensioning structure (200) includes a shaft extension spline ring (201), a spline ring sleeve (202), a tolerance ring fixing seat (203), and a tolerance ring body (204) arranged sequentially from the inside to the outside. The center of the shaft extension spline ring (201) is the motor connection hole (2011), and a plurality of protrusions (2041) are evenly distributed on the outer wall of the tolerance ring body (204).

3. The connection structure between the roller and the motor according to claim 1, characterized in that: The motor connection hole (2011) is an internal hexagonal hole, and the end of the output shaft of the motor body (102) is a hexagonal prism structure, and the output shaft of the motor body (102) can be inserted into the motor connection hole (2011).

4. The connection structure between the roller and the motor according to claim 2, characterized in that: The outer wall of the shaft extension spline ring (201) is circumferentially distributed with a plurality of first external splines (2012), and the inner wall of the spline ring sleeve (202) is circumferentially distributed with a plurality of first internal keyways (2021). The number of first external splines (2012) is the same as the number of first internal keyways (2021), and the first external splines (2012) are disposed in the first internal keyways (2021).

5. The connection structure between the roller and the motor according to claim 2, characterized in that: The outer wall of the spline ring sleeve (202) is circumferentially distributed with a plurality of second external splines (2022), and the inner wall of the tolerance ring fixing seat (203) is circumferentially distributed with a plurality of second internal keyways (2031). The number of second external splines (2022) is the same as the number of second internal keyways (2031), and the second external splines (2022) are disposed in the second internal keyways (2031).

6. The connection structure between the roller and the motor according to claim 2, characterized in that: The tolerance ring fixing seat (203) has a tolerance ring mounting groove (2032) on its outer wall, and the tolerance ring body (204) is installed in the tolerance ring mounting groove (2032).

7. The connection structure between the roller and the motor according to claim 6, characterized in that: The tolerance ring mounting groove (2032) has multiple mounting groove baffles (2033) evenly distributed on both sides of its circumference.

8. The connection structure between the roller and the motor according to claim 6, characterized in that: The tolerance ring mounting groove (2032) is provided with a mounting groove mating block (2034), and the tolerance ring body (204) is provided with a tolerance ring opening slot (2042). When the tolerance ring body (204) is installed on the tolerance ring mounting groove (2032), the mounting groove mating block (2034) is located at the tolerance ring opening slot (2042).

9. The connection structure between the roller and the motor according to claim 2, characterized in that: The tolerance ring body (204) is made of 304 stainless steel.

10. The connection structure between the roller and the motor according to claim 2, characterized in that: The spline ring sleeve (202) is made of polyurethane.

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