Motor water-cooling end cover, assembling method thereof and roller way motor

Abstract

The invention provides a motor water-cooling end cover, an assembling method thereof and a roller way motor, and relates to the technical field of roller way motors, the motor water-cooling end cover comprises an end cover body, a locking structure and a pipeline; the end cover body is provided with a cooling liquid connector, and the cooling liquid connector is provided with a circumferential connecting wall. The locking structure comprises an annular limiting plate located at the outer end of the cooling liquid connector and an elastic arm extending into the cooling liquid connector from the annular limiting plate, the connecting end of the elastic arm is connected with the annular limiting plate, and the free end of the elastic arm is connected with the circumferential connecting wall in a clamped mode. The elastic arm gradually inclines towards the direction close to the axis of the cooling liquid connector from the free end to the connecting end, and the elastic arm is provided with a locking part; and when the pipeline is pulled out from the cooling liquid connector, the annular limiting plate and the elastic arms are driven to move, so that the free ends of the elastic arms gradually approach to the pipeline, and the locking parts gradually press the pipeline. The operation stability of the motor can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of roller motors, and in particular to a motor water-cooling end cover and an assembly method thereof, and a roller motor. Background Art

[0002] A water-cooled end cover is usually provided in the roller motor, and the coolant is passed into the coolant interface of the water-cooled end cover to achieve water cooling of the roller motor.

[0003] Currently, water-cooled end covers are usually equipped with pipes at the interfaces to connect to the cooling system so that the cooling system can supply coolant to the interfaces. However, when the motor is running, the pipes are prone to loosening due to motor vibration, which may cause the pipes to detach from the interfaces, causing coolant leakage, thereby affecting the stability of the motor operation. Summary of the invention

[0004] The problem solved by the present invention is: how to ensure the stability of motor operation.

[0005] In order to solve the above problems, the present invention provides a motor water-cooling end cover and an assembly method thereof, and a roller motor.

[0006] In the first aspect, the present invention provides a water-cooled end cover of an electric motor, comprising an end cover body, a locking structure and a pipeline; the end cover body is provided with a coolant interface, and the coolant interface has a circumferential connecting wall; the locking structure comprises an annular limit plate located at the outer end of the coolant interface and an elastic arm extending from the annular limit plate to the coolant interface, the connecting end of the elastic arm is connected to the annular limit plate, the free end of the elastic arm is clamped with the circumferential connecting wall, the elastic arm gradually tilts from the free end to the connecting end toward the direction close to the axis of the coolant interface, and the elastic arm is provided with a locking portion; the pipeline is used to pass through the annular limit plate to be inserted into the coolant interface, and the pipeline is connected to the annular limit plate. When the pipeline is pulled out from the coolant interface, the annular limit plate and the elastic arm are driven to move, so that the free end of the elastic arm gradually moves close to the pipeline, and the locking portion gradually presses the pipeline.

[0007] The beneficial effects of the motor water-cooling end cover of the present invention are as follows: a coolant interface is provided on the end cover body, and the coolant interface has a circumferential connecting wall, so that the circumferential connecting wall can be used for the installation of a locking structure and a pipeline, and at the same time, the locking structure is provided as an annular limiting plate located at the outer end of the coolant interface and an elastic arm extending from the annular limiting plate to the coolant interface, the connecting end of the elastic arm is connected to the annular limiting plate, the free end of the elastic arm is clamped with the circumferential connecting wall, the elastic arm gradually tilts from the free end to the connecting end toward the direction close to the axis of the coolant interface, and the elastic arm is provided with a locking portion, so that the elastic arm can move with the annular limiting plate and deform under the limitation of the circumferential connecting wall. The free end gradually approaches the pipe, and the locking part gradually presses the pipe. In this way, after the pipe is passed through the annular limit plate to be inserted into the coolant interface, the pipe can be pulled out a certain distance, driving the annular limit plate and the elastic arm to move, so that the free end gradually approaches the pipe and moves, and the locking part gradually presses the pipe. The pressing force of the locking part on the pipe wall is used to fix the pipe so that it can no longer move relative to the elastic arm. Since the elastic arm and the circumferential connecting wall are engaged, the elastic arm can be used to achieve fixed installation of the pipe on the circumferential connecting wall, so that the pipe is not easy to fall off from the coolant interface, thereby preventing coolant leakage and ensuring the stability of the motor operation.

[0008] Optionally, the locking portion includes a conical protrusion, and the conical protrusion is arranged on the side of the elastic arm close to the pipe and close to the free end.

[0009] Optionally, a locking member is further included, which is in the shape of a ring with an opening and is used to be arranged between the annular limiting plate and the outer end surface of the circumferential connecting wall to limit the movement of the annular limiting plate towards the circumferential connecting wall.

[0010] Optionally, a guide notch is provided on the circumferential connecting wall, and a guide protrusion is provided at the free end of the elastic arm, and the guide protrusion is inserted into the guide notch and can move in the guide notch along the axial direction of the coolant interface;

[0011] When the pipe is pulled out from the coolant interface, the elastic arm moves with the pipe and deforms toward the pipe under the limiting action of the edge of the guide notch, so that the free end of the elastic arm gradually approaches the pipe and the locking portion is engaged with the pipe.

[0012] Optionally, the guiding protrusion includes an outer arc surface facing away from the elastic arm, and an avoidance slope is provided at the edge of the outer arc surface facing away from the annular limiting plate, and the avoidance slope is inclined relative to the axial direction of the coolant interface.

[0013] Optionally, the locking structure also includes a limit sleeve coaxially arranged with the annular limit plate, the limit sleeve is located on the side of the elastic arm away from the annular limit plate, a connecting arm is provided between the limit sleeve and the annular limit plate, the limit sleeve is fixedly connected to the annular limit plate via the connecting arm, and the limit sleeve is used to move with the annular limit plate so as to limit the guide protrusion together with the guide notch when the locking portion clamps the pipe.

[0014] Optionally, a plurality of the elastic arms are provided, and the plurality of the elastic arms are located between the limiting sleeve and the annular limiting plate and are evenly spaced along the circumference of the pipeline.

[0015] Optionally, the inner wall surface of the circumferential connecting wall includes a first cylindrical surface, a second cylindrical surface and a third cylindrical surface which are arranged in sequence along the direction toward the outer end surface of the circumferential connecting wall, the inner diameters of the first cylindrical surface, the second cylindrical surface and the third cylindrical surface increase in sequence, the connection between the first cylindrical surface and the second cylindrical surface constitutes a first annular step surface, the first annular step surface is adapted to the shape of the pipe, the connection between the second cylindrical surface and the third cylindrical surface constitutes a second annular step surface, a sealing ring is placed on the second annular step surface, the inner side of the sealing ring is connected to the circumferential wall surface of the pipe, and the outer side of the sealing ring is connected to the third cylindrical surface.

[0016] In a second aspect, the present invention provides a method for assembling a water-cooling end cover of a motor, which is used to assemble the water-cooling end cover of the motor as described above, and the method for assembling the water-cooling end cover of the motor comprises:

[0017] Insert the pipe into the coolant interface through the annular limiting plate, and make the front end surface of the pipe abut against the first annular step surface;

[0018] Pull the pipe outward from the coolant interface so that the free end of the elastic arm gradually moves toward the pipe and the locking portion gradually presses the pipe;

[0019] A locking member is disposed between the annular limiting plate and the outer end surface of the circumferential connecting wall to limit the movement of the annular limiting plate toward the circumferential connecting wall.

[0020] The beneficial effects of the assembly method of the motor water-cooling end cover of the present invention are as follows: first, the pipeline is inserted into the coolant interface through the annular limit plate, and the front end face of the pipeline is abutted against the first annular step surface, so that the pipeline can be ensured to pass through the sealing ring normally, and the sealing between the peripheral wall surface of the pipeline and the third cylindrical surface is realized, so that the pipeline and the circumferential connecting wall have better sealing; then the pipeline is pulled out from the coolant interface, so that the free end of the elastic arm gradually approaches the pipeline and moves, and the locking part gradually presses the pipeline, so that the pressing force of the locking part on the pipeline wall surface can be used to fix the pipeline so that it can no longer move, so that the pipeline is firmly installed on the circumferential connecting wall; finally, the locking piece is arranged between the annular limit plate and the outer end face of the circumferential connecting wall to limit the annular limit plate from approaching the circumferential connecting wall, so that the annular limit plate can be prevented from approaching the outer end face of the circumferential connecting wall, which affects the fixing effect of the pipeline.

[0021] In a third aspect, the present invention provides a roller table motor, comprising the motor water-cooling end cover as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of a water-cooled end cover of a motor according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic structural diagram of a locking structure according to an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of a locking member according to an embodiment of the present invention;

[0025] Figure 4 is a cross-sectional view of a circumferential connecting wall according to an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of step S1 of a method for assembling a water-cooling end cover of a motor according to an embodiment of the present invention;

[0027] Figure 6 Schematic diagram of step S2 of the method for assembling a water-cooling end cover of a motor according to an embodiment of the present invention;

[0028] Figure 7 Schematic diagram of step S3 of the method for assembling the water-cooling end cover of a motor according to an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Locking structure; 11. Annular limit plate; 12. Elastic arm; 121. Locking part; 122. Free end; 123. Guide protrusion; 1231. Outer arc surface; 1232. Avoidance slope; 13. Limit sleeve; 14. Connecting arm; 2. Pipeline; 3. Coolant interface; 4. Circumferential connecting wall; 41. Outer end surface; 42. Guide notch; 43. First cylindrical surface; 44. Second cylindrical surface; 45. Third cylindrical surface; 46. First annular step surface; 47. Second annular step surface; 48. Sealing ring; 5. Locking member. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0032] The Z axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom; the X axis in the drawings represents the horizontal direction, and is designated as the front and back position, and the positive direction of the X axis represents the front side, and the reverse direction of the X axis represents the back side; the Y axis in the drawings represents the left and right position, and the positive direction of the Y axis represents the left side, and the reverse direction of the Y axis represents the right side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0035] The present invention provides a motor water-cooling end cover and an assembly method thereof, and a roller motor, so as to ensure the stability of the motor operation. Detailed description will be given below in conjunction with specific embodiments.

[0036] like Figure 1 As shown, an embodiment of the present invention provides a motor water-cooled end cover, including an end cover body, a locking structure 1 and a pipeline 2; the end cover body is provided with a coolant interface 3, and the coolant interface 3 has a circumferential connecting wall 4; the locking structure 1 includes an annular limiting plate 11 located at the outer end of the coolant interface 3 and an elastic arm 12 extending from the annular limiting plate 11 to the coolant interface 3, the connecting end of the elastic arm 12 is connected to the annular limiting plate 11, the free end 122 of the elastic arm 12 is clamped with the circumferential connecting wall 4, and the elastic arm 12 extends from the inner end of the cooling liquid interface 3 to the inner end of the cooling liquid interface 3. The elastic arm 12 is gradually inclined from the end 122 to the connecting end toward the direction close to the axis of the coolant interface 3, and is provided with a locking portion 121; the pipe 2 is used to pass through the annular limit plate 11 to be inserted into the coolant interface 3, and the pipe 2 is connected to the annular limit plate 11. When the pipe 2 is pulled out from the coolant interface 3, the annular limit plate 11 and the elastic arm 12 are driven to move, so that the free end 122 of the elastic arm 12 gradually moves toward the pipe 2, and the locking portion 121 gradually presses the pipe 2.

[0037] Specifically, the circumferential connecting wall 4 can be integrally formed with the end cover body to improve the sealing between the circumferential connecting wall 4 and the end cover body. Specifically, the inner diameter of the annular stop plate 11 can be adapted to the outer diameter of the pipe 2, so that after the pipe 2 is inserted into the coolant interface 3, the circumferential wall surface of the pipe 2 and the inner circumferential surface of the annular stop plate 11 are interference fit, so that when the pipe 2 is pulled out from the coolant interface 3, the circumferential wall surface of the pipe 2 can generate a certain friction force with the inner circumferential surface of the annular stop plate 11, so that when the pipe 2 is pulled out from the coolant interface 3, the pipe 2 can drive the annular stop plate 11 away from the outer end surface 41 of the circumferential connecting wall 4. Specifically, the material of the pipe 2 can be plastic.

[0038] In addition, the assembly process of the motor water-cooled end cover can be as follows: first, insert the pipe 2 into the coolant interface 3 through the annular limit plate 11, and then pull the pipe 2 outward for a distance. During the pulling-out process, the pipe 2 will use the friction between the pipe 2 and the annular limit plate 11 to drive the annular limit plate 11 away from the outer end surface 41 of the circumferential connecting wall 4. The moving annular limit plate 11 will then drive the elastic arm 12 to move. During the movement, the elastic arm 12 will be deformed by the limiting effect of the circumferential connecting wall 4, so that the free end 122 gradually approaches the pipe 2, and the locking part 121 gradually presses the pipe 2, so that the pipe 2 can no longer move, thereby achieving relative fixation of the pipe 2 and the circumferential connecting wall 4.

[0039] In this embodiment, a coolant interface 3 is provided on the end cover body, and the coolant interface 3 has a circumferential connecting wall 4, so that the circumferential connecting wall 4 can be installed for the locking structure 1 and the pipeline 2, and at the same time, the locking structure 1 is set as an annular limiting plate 11 located at the outer end of the coolant interface 3 and an elastic arm 12 extending from the annular limiting plate 11 to the coolant interface 3, the connecting end of the elastic arm 12 is connected to the annular limiting plate 11, and the free end 122 of the elastic arm 12 is clamped with the circumferential connecting wall 4, and the elastic arm 12 gradually tilts from the free end 122 to the connecting end toward the direction close to the axis of the coolant interface 3, and the elastic arm 12 is provided with a locking portion 121, so that the elastic arm 12 can move with the annular limiting plate 11 and deform under the limitation of the circumferential connecting wall 4, so that the free end 122 gradually approaches the pipe 2, and the locking portion 121 gradually presses the pipe 2. In this way, after the pipe 2 passes through the annular limit plate 11 to be inserted into the coolant interface 3, the pipe 2 can be pulled outward for a distance, driving the annular limit plate 11 and the elastic arm 12 to move, so that the free end 122 gradually approaches the pipe 2 and moves, and the locking portion 121 gradually presses the pipe 2. The pressing force of the locking portion 121 on the wall of the pipe 2 is used to fix the pipe 2 so that it can no longer move relative to the elastic arm 12. Since the elastic arm 12 and the circumferential connecting wall 4 are engaged, the elastic arm 12 can be used to achieve fixed installation of the pipe 2 on the circumferential connecting wall 4, so that the pipe 2 is not easy to fall out of the coolant interface 3, thereby preventing coolant leakage and ensuring the stability of the motor operation.

[0040] Alternatively, if Figure 1 and Figure 2 As shown, the locking portion 121 includes a conical protrusion, which is arranged on the side of the elastic arm 12 close to the pipe 2 and close to the free end 122 .

[0041] It should be noted that, since the free end 122 of the elastic arm 12 is the end of the elastic arm 12 that is away from the annular limit plate 11, and the elastic arm 12 itself is inclined in a direction close to the coolant interface 3 and away from the axis of the circumferential connecting wall 4, that is to say, the free end 122 of the elastic arm 12 is a position in the elastic arm 12 that is farther away from the pipe 2.

[0042] In this optional embodiment, by setting the locking portion 121 as a conical protrusion, when the locking portion 121 contacts the wall of the pipe 2, the conical protrusion can be better pressed into the wall of the pipe 2, thereby improving the pressing effect of the locking portion 121 on the wall of the pipe 2 and preventing the pipe 2 from moving; and when the locking structure 1 is installed to the circumferential connecting wall 4, the elastic arm 12 may have an installation error, causing the conical protrusion to be on the path of the pipe 2 inserted into the circumferential connecting wall 4, and the conical protrusion will hinder the normal installation of the pipe 2. In this optional embodiment, by arranging the conical protrusion on the side of the elastic arm 12 close to the pipe 2 and close to the free end 122, the conical protrusion can be located in the elastic arm 12 at a position farther away from the pipe 2, thereby reducing the probability of the conical protrusion hindering the insertion of the pipe 2 and improving the installation efficiency.

[0043] Alternatively, if Figure 1 and Figure 2 As shown, a guide notch 42 is provided on the circumferential connecting wall 4, and a guide protrusion 123 is provided at the free end 122 of the elastic arm 12. The guide protrusion 123 is inserted into the guide notch 42 and can move in the guide notch 42 along the axial direction of the coolant interface 3; when the pipe 2 is pulled out from the coolant interface 3, the elastic arm 12 moves with the pipe 2 and deforms in the direction close to the pipe 2 under the limiting action of the edge of the guide notch 42, so that the free end 122 of the elastic arm 12 gradually approaches the pipe 2 and the locking portion 121 is engaged with the pipe 2.

[0044] It can be understood that when the pipe 2 does not start to be pulled out, the guide protrusion 123 can be inserted into the guide notch 42. In this way, when the pipe 2 is pulled out from the coolant interface 3, the pipe 2 will drive the annular limiting plate 11 away from the outer end surface 41 of the circumferential connecting wall 4, and the annular limiting plate 11 will drive the elastic arm 12 to move. Since the guide protrusion 123 is inserted into the guide notch 42, when the elastic arm 12 moves, the guide protrusion 123 is limited by the edge of the guide notch 42 and will be deformed in the direction close to the pipe 2, which will cause the free end 122 of the elastic arm 12 to gradually approach the pipe 2, and the locking portion 121 is engaged with the pipe 2.

[0045] In this optional embodiment, through the guide notch 42 and the guide protrusion 123, when the pipe 2 is pulled out from the coolant interface 3, the elastic arm 12 will move with the pipe 2 and deform in the direction close to the pipe 2 under the limiting action of the edge of the guide notch 42, so that the free end 122 of the elastic arm 12 can move smoothly toward the pipe 2, and the locking portion 121 gradually presses the pipe 2, thereby firmly mounting the pipe 2 on the circumferential connecting wall 4.

[0046] Alternatively, if Figure 2As shown, the guide protrusion 123 includes an outer arc surface 1231 that is away from the elastic arm 12, and an avoidance slope 1232 is provided at the edge of the outer arc surface 1231 that is away from the annular limit plate 11. The avoidance slope 1232 is inclined relative to the axial direction of the coolant interface 3.

[0047] In this optional embodiment, an avoidance slope 1232 is provided at the edge of the outer arc surface 1231 that is away from the annular limit plate 11, and the avoidance slope 1232 is arranged to be axially inclined relative to the circumferential connecting wall 4. In this way, in the process of installing the locking structure 1 to the circumferential connecting wall 4, the setting of the avoidance slope 1232 can make the guide protrusion 123 easier to insert into the guide notch 42, thereby reducing the difficulty of installing the locking structure 1.

[0048] Alternatively, if Figure 1 and Figure 2 As shown, the locking structure 1 also includes a limiting sleeve 13 coaxially arranged with the annular limiting plate 11, the limiting sleeve 13 is located on the side of the elastic arm 12 away from the annular limiting plate 11, a connecting arm 14 is provided between the limiting sleeve 13 and the annular limiting plate 11, the limiting sleeve 13 is fixedly connected to the annular limiting plate 11 through the connecting arm 14, and the limiting sleeve 13 is used to move with the annular limiting plate 11, so as to limit the guide protrusion 123 together with the guide notch 42 when the locking portion 121 is clamped with the pipe 2.

[0049] In this optional embodiment, a limiting sleeve 13 is provided to limit the guide protrusion 123 together with the edge of the guide notch 42 when the locking portion 121 clamps the pipe 2, so as to clamp the guide protrusion 123, thereby fixing the locking structure 1 and preventing the locking structure 1 from continuing to move outside the circumferential connecting wall 4, thereby ensuring that the pipe 2 is firmly positioned at the circumferential connecting wall 4 and improving the fixing effect of the pipe 2.

[0050] Alternatively, if Figure 2 As shown, a plurality of elastic arms 12 are provided, and the plurality of elastic arms 12 are located between the limiting sleeve 13 and the annular limiting plate 11 , and are evenly spaced along the circumference of the pipe 2 .

[0051] In this optional embodiment, a plurality of elastic arms 12 are located between the limiting sleeve 13 and the annular limiting plate 11 and are evenly spaced along the circumference of the pipe 2 , thereby achieving even circumferential clamping of the pipe 2 and improving the stability of the pipe 2 .

[0052] Alternatively, if Figure 3 As shown, the motor water-cooling end cover also includes a locking member 5, which is annular with an opening and is used to be arranged between the annular limiting plate 11 and the outer end surface 41 of the circumferential connecting wall 4 (combined with Figure 7 ) to limit the annular limiting plate 11 from moving toward the circumferential connecting wall 4.

[0053] In actual use, after the locking portion 121 presses the pipeline 2 so that the pipeline 2 no longer moves, the annular limit plate 11 may move toward the circumferential connecting wall 4 under the action of external force, causing the locking portion 121 to move and reduce the pressing force of the locking portion 121 on the pipeline 2, affecting the fixing effect of the pipeline 2. In this optional embodiment, the locking member 5 can be installed between the annular limit plate 11 and the outer end surface 41 of the circumferential connecting wall 4 after the locking portion 121 presses the pipeline 2 so that the pipeline 2 no longer moves, so as to limit the annular limit plate 11 from moving toward the circumferential connecting wall 4. In this way, the annular limit plate 11 can be better fixed, thereby improving the fixing effect on the pipeline 2.

[0054] Alternatively, if Figure 4 As shown, the inner wall surface of the circumferential connecting wall 4 includes a first cylindrical surface 43, a second cylindrical surface 44 and a third cylindrical surface 45 which are arranged in sequence along the direction toward the outer end surface 41 of the circumferential connecting wall 4, the inner diameters of the first cylindrical surface 43, the second cylindrical surface 44 and the third cylindrical surface 45 increase in sequence, the connection between the first cylindrical surface 43 and the second cylindrical surface 44 constitutes a first annular step surface 46, the first annular step surface 46 is adapted to the shape of the pipe 2, the connection between the second cylindrical surface 44 and the third cylindrical surface 45 constitutes a second annular step surface 47, the second annular step surface 47 is provided with a sealing ring 48, the inner side of the sealing ring 48 is connected to the circumferential wall surface of the pipe 2, and the outer side of the sealing ring 48 is connected to the third cylindrical surface 45.

[0055] Specifically, the inner diameter of the first cylindrical surface 43 may be the same as the inner diameter of the pipe 2 , and the inner diameter of the second cylindrical surface 44 may be the same as the outer diameter of the pipe 2 , so that the first annular step surface 46 is adapted to the shape of the pipe 2 .

[0056] In this optional embodiment, through the sealing ring 48, when the pipe 2 is inserted into the circumferential connecting wall 4, the pipe 2 can pass through the sealing ring 48 so that its circumferential wall surface contacts the inner side of the sealing ring 48, and the outer side of the sealing ring 48 contacts the third cylindrical surface 45, that is, the sealing between the circumferential wall surface of the pipe 2 and the third cylindrical surface 45 is achieved, so that the pipe 2 and the circumferential connecting wall 4 have good sealing performance. At the same time, by providing the first annular step surface 46, and the first annular step surface 46 is adapted to the shape of the pipe 2, so that after the pipe 2 passes through the sealing ring 48, the pipe 2 can continue to penetrate along the coolant interface 3 until the front end surface of the pipe 2 abuts against the first annular step surface 46. When the pipe 2 is blocked, it means that the pipe 2 has reached the first annular step surface 46, that is, it means that the pipe 2 has passed through the sealing ring 48 normally, and it means that the pipe 2 and the circumferential connecting wall 4 can achieve normal sealing, avoiding the situation of poor sealing performance due to assembly errors.

[0057] like Figures 5 to 7 As shown, an assembling method of a motor water-cooling end cover provided by an embodiment of the present invention is used to assemble the motor water-cooling end cover as described above, and the assembling method of the motor water-cooling end cover comprises:

[0058] Step S1: insert the pipe 2 into the coolant interface 3 through the annular limiting plate 11, and make the front end surface of the pipe 2 abut against the first annular step surface 46;

[0059] Step S2: Pull the pipe 2 outward from the coolant interface 3, so that the free end 122 of the elastic arm 12 gradually moves toward the pipe 2, and the locking portion 121 gradually presses the pipe 2;

[0060] Step S3: disposing the locking member 5 between the annular limiting plate 11 and the outer end surface 41 of the circumferential connecting wall 4 to restrict the annular limiting plate 11 from moving toward the circumferential connecting wall 4 .

[0061] In this embodiment, the pipe 2 is first inserted into the coolant interface 3 through the annular limit plate 11, and the front end face of the pipe 2 is abutted against the first annular step surface 46, so that the pipe 2 can pass through the sealing ring 48 normally, and the sealing between the peripheral wall surface of the pipe 2 and the third cylindrical surface 45 is achieved, so that the pipe 2 and the circumferential connecting wall 4 have better sealing; then the pipe 2 is pulled out from the coolant interface 3, so that the free end 122 of the elastic arm 12 gradually approaches the pipe 2 and moves, and the locking part 121 gradually presses the pipe 2, so that the locking force of the locking part 121 on the wall surface of the pipe 2 can be used to fix the pipe 2 so that it can no longer move, so that the pipe 2 is firmly installed on the circumferential connecting wall 4; finally, the locking member 5 is arranged between the annular limit plate 11 and the outer end face 41 of the circumferential connecting wall 4 to limit the annular limit plate 11 from approaching the circumferential connecting wall 4, so as to avoid the annular limit plate 11 from approaching the outer end face 41 of the circumferential connecting wall 4, which affects the pipe fixing effect.

[0062] An embodiment of the present invention provides a method for disassembling a water-cooling end cover of a motor, which is used to disassemble the water-cooling end cover of the motor as described above. The method for disassembling the water-cooling end cover of the motor comprises:

[0063] Remove the locking member 5, and then push the annular limiting plate 11 in the direction toward the outer end surface 41 of the circumferential connecting wall 4 until the annular limiting plate 11 is in contact with the outer end surface 41 of the circumferential connecting wall 4;

[0064] The annular limiting plate 11 is pressed onto the outer end surface 41 of the circumferential connecting wall 4 , and the pipe 2 is pulled out from the annular limiting plate 11 .

[0065] In this embodiment, the locking member 5 is first removed, and then the annular limiting plate 11 is pushed to fit with the outer end surface 41 of the circumferential connecting wall 4. Then, the annular limiting plate 11 is pressed and the pipe 2 is pulled out, so that the pipe 2 can be disassembled. The operation is simple and convenient, and the disassembly efficiency is high.

[0066] A roller table motor provided by an embodiment of the present invention includes the motor water-cooling end cover as described above.

[0067] It should be noted that the roller motor may further include a stator, a rotor, a housing, etc. This embodiment does not limit other specific structures of the roller motor.

[0068] In this embodiment, the roller motor includes all the technical features of the above-mentioned motor water-cooling end cover, and therefore, also has the technical effects brought by all the above-mentioned technical features, which will not be described one by one here.

[0069] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A water-cooled end cover of a motor, characterized in that: The invention comprises an end cover body, a locking structure (1) and a pipeline (2); the end cover body is provided with a coolant interface (3), and the coolant interface (3) has a circumferential connecting wall (4); the locking structure (1) comprises an annular limiting plate (11) located at the outer end of the coolant interface (3) and an elastic arm (12) extending from the annular limiting plate (11) to the inside of the coolant interface (3), the connecting end of the elastic arm (12) is connected to the annular limiting plate (11), the free end (122) of the elastic arm (12) is clamped with the circumferential connecting wall (4), and the elastic arm (12) extends from the free end (122) to the connecting end The elastic arm (12) is gradually inclined toward the direction approaching the axis of the coolant interface (3), and the elastic arm (12) is provided with a locking portion (121); the pipe (2) is used to pass through the annular limit plate (11) to be inserted into the coolant interface (3), and the pipe (2) is connected to the annular limit plate (11). When the pipe (2) is pulled out from the coolant interface (3), the annular limit plate (11) and the elastic arm (12) are driven to move, so that the free end (122) of the elastic arm (12) gradually moves toward the pipe (2), and the locking portion (121) gradually presses the pipe (2).

2. The motor water-cooling end cover according to claim 1, characterized in that: The locking portion (121) comprises a conical protrusion, which is arranged on the side of the elastic arm (12) close to the pipe (2) and close to the free end (122).

3. The motor water-cooling end cover according to claim 1, characterized in that: It also includes a locking member (5), which is annular with an opening, and is used to be arranged between the annular limiting plate (11) and the outer end surface (41) of the circumferential connecting wall (4) to limit the movement of the annular limiting plate (11) towards the circumferential connecting wall (4).

4. The motor water-cooling end cover according to claim 1, characterized in that: A guide notch (42) is provided on the circumferential connecting wall (4), and a guide protrusion (123) is provided on the free end (122) of the elastic arm (12), wherein the guide protrusion (123) is inserted into the guide notch (42) and can move in the guide notch (42) along the axial direction of the coolant interface (3); When the pipe (2) is pulled out from the coolant interface (3), the elastic arm (12) moves with the pipe (2) and deforms in a direction close to the pipe (2) under the limiting action of the edge of the guide notch (42), so that the free end (122) of the elastic arm (12) gradually approaches the pipe (2) and the locking portion (121) is engaged with the pipe (2).

5. The motor water-cooling end cover according to claim 4, characterized in that: The guiding protrusion (123) comprises an outer arc surface (1231) which is away from the elastic arm (12), and an avoidance slope (1232) is provided at the edge of the outer arc surface (1231) which is away from the annular limiting plate (11), and the avoidance slope (1232) is arranged to be inclined relative to the axial direction of the coolant interface (3).

6. The motor water-cooling end cover according to claim 4, characterized in that: The locking structure (1) further comprises a limiting sleeve (13) coaxially arranged with the annular limiting plate (11); the limiting sleeve (13) is located on a side of the elastic arm (12) facing away from the annular limiting plate (11); a connecting arm (14) is provided between the limiting sleeve (13) and the annular limiting plate (11); the limiting sleeve (13) is fixedly connected to the annular limiting plate (11) via the connecting arm (14); the limiting sleeve (13) is used to move with the annular limiting plate (11) so as to limit the guiding protrusion (123) together with the guiding notch (42) when the locking portion (121) is clamped with the pipe (2).

7. The motor water-cooling end cover according to claim 6, characterized in that: A plurality of the elastic arms (12) are provided, and the plurality of the elastic arms (12) are located between the limiting sleeve (13) and the annular limiting plate (11), and are evenly spaced along the circumference of the pipe (2).

8. The motor water-cooling end cover according to claim 6, characterized in that: The inner wall surface of the circumferential connecting wall (4) comprises a first cylindrical surface (43), a second cylindrical surface (44) and a third cylindrical surface (45) which are arranged in sequence along a direction toward an outer end surface (41) of the circumferential connecting wall (4); the inner diameters of the first cylindrical surface (43), the second cylindrical surface (44) and the third cylindrical surface (45) increase in sequence; the connection between the first cylindrical surface (43) and the second cylindrical surface (44) forms a first annular step surface (46); the first annular step surface (46) is adapted to the shape of the pipeline (2); the connection between the second cylindrical surface (44) and the third cylindrical surface (45) forms a second annular step surface (47); a sealing ring (48) is placed on the second annular step surface (47); the inner side of the sealing ring (48) is connected to the circumferential wall surface of the pipeline (2); and the outer side of the sealing ring (48) is connected to the third cylindrical surface (45).

9. A method for assembling a motor water-cooling end cover, used for assembling the motor water-cooling end cover according to any one of claims 1 to 8, characterized in that: The assembly method of the motor water-cooling end cover comprises: Inserting the pipe (2) into the coolant interface (3) through the annular limiting plate (11), and making the front end surface of the pipe (2) abut against the first annular step surface (46); The pipe (2) is pulled out from the coolant interface (3), so that the free end (122) of the elastic arm (12) gradually moves toward the pipe (2), and the locking portion (121) gradually presses the pipe (2); A locking member (5) is arranged between the annular limiting plate (11) and the outer end surface (41) of the circumferential connecting wall (4) to limit the movement of the annular limiting plate (11) toward the circumferential connecting wall (4).

10. A roller motor, characterized in that: It comprises a motor water-cooling end cover as claimed in any one of claims 1 to 8.

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