Self-heat-dissipation end cover structure and gear motor

Abstract

The utility model discloses a self-heat-dissipation end cover structure and a speed reduction motor, and relates to the speed reduction motor field, the end cover structure comprises a front end cover, an annular front cover and an external connector, the front end cover is provided with installation protruding blocks which are distributed circumferentially, a ventilation channel is arranged between two adjacent installation protruding blocks, the external connector is provided with an annular plate which extends outwards, and the annular plate is connected with the annular front cover. The annular plate abuts against the side face, close to the front end cover, of the annular front cover. The external connector and the front end cover are connected through an output shaft, and the external connector stretches and retracts in the axial direction of the output shaft. According to the utility model, the air flow in the casing of the gear motor can be accelerated, the fan blades at the front end are matched to achieve the purpose of rapid heat dissipation, the heat dissipation efficiency is higher, the heat dissipation effect is good, the operation stability of the gear motor is improved, the failure rate is reduced, the service life of the gear motor can be prolonged, and the service life of the gear motor is prolonged. The overall structure is compact in layout, small in size and safe and stable to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reduction motor technical field especially relates to a kind of self-heat dissipation end cap structure and reduction motor. BACKGROUND

[0002] Reduction motor can reduce the motor speed of high speed low torque, while increasing torque output, to meet the working requirement of mechanical equipment needs low speed big torque.Reduction motor needs to dissipate heat to internal working element when working, fan blade is brought on the rear end rotor of reduction motor, and fan blade rotates to achieve the purpose of heat dissipation.Patent application No.202021800315.1 discloses a kind of reduction motor end cap structure, including the front end cap of being installed on reduction motor, the bearing installation cavity and the shaft hole of being communicated with the bearing installation cavity are coaxially equipped in the front end cap, the accommodating cavity of a ring is coaxially arranged in the front end cap, the heat conduction ring is embedded in the accommodating cavity, and the outer wall of the front end cap is equipped with a plurality of heat dissipation fins corresponding to the accommodating cavity.Although heat conduction ring and heat dissipation fin are arranged in front end cap, can accelerate the heat dissipation of front end cap, solve the problem that existing fan blade can only dissipate heat to the rear end of rotor, so that the front end of rotor cannot dissipate heat, but the heat dissipation effect is not good by using heat transfer mode to dissipate heat.Therefore, the utility model discloses a kind of self-heat dissipation end cap structure and reduction motor solve the above problems. UTILITY MODEL CONTENTS

[0003] Therefore, it is necessary to provide a kind of self-heat dissipation end cap structure and reduction motor for the above technical problems, can accelerate the air flow in the shell of reduction motor, cooperate with the fan blade of front end, reach the purpose of rapid heat dissipation, and the heat dissipation efficiency is higher, the heat dissipation effect is good, improves the operation stability of reduction motor, reduces failure rate, can improve the service life of reduction motor, overall structure layout is compact, small in size, safe and stable in use.

[0004] In order to solve the above technical problems, the utility model adopts the technical scheme as follows:

[0005] A kind of self-heat dissipation end cap structure, it includes front end cap, the installation protruding block of circumferential distribution is equipped on the front end cap, and the ventilation passage is equipped between adjacent two installation protruding blocks;Annular front cover, the annular front cover is buckled with front end cap;External connector, the ring plate extending outward is equipped on the external connector, the ring plate is abutted with the side face of annular front cover close to front end cap, the external connector is connected with front end cap by output shaft and the external connector is telescopic motion along the axial direction of output shaft, when the ring plate, annular front cover and front end cap form the air outlet path communicated with ventilation passage when the external connector moves towards front end cap.

[0006] As a preferred implementation form of the self-heat-dissipation end cover structure provided by the utility model, a partition strip is arranged between the outer side wall of the front end cover and the two adjacent mounting protruding blocks, and a ventilation channel is formed between the two adjacent partition strips and between the partition strip and the mounting protruding blocks.

[0007] As a preferred implementation form of the self-heat-dissipation end cover structure provided by the utility model, one end of the partition strip close to the annular front cover protrudes from the end surface of the front end cover, and the partition strip abuts against the annular front cover, and a gap is left between the end surface of the front end cover and the annular front cover.

[0008] As a preferred implementation form of the self-heat-dissipation end cover structure provided by the utility model, the outer side wall of the front end cover is provided with a buckle, the side wall of the annular front cover is provided with a buckle groove, and the buckle and the buckle groove are arranged in a matched mode.

[0009] As a preferred implementation form of the self-heat-dissipation end cover structure provided by the utility model, the external connecting head and the output shaft are connected through a spring, one end of the output shaft protrudes from the external connecting head, and the protruding end is fixedly connected with a limiting bolt, and the external connecting head can slide along the axial direction of the output shaft.

[0010] As a preferred implementation form of the self-heat-dissipation end cover structure provided by the utility model, a gasket is mounted on the output shaft, the gasket is limited along the axial direction of the output shaft and can rotate along the circumferential direction of the output shaft, and the spring is fixedly connected with the gasket.

[0011] As a preferred implementation form of the self-heat-dissipation end cover structure provided by the utility model, an outer side of a section of the output shaft close to the external connecting head is provided with a cutting surface, forming an angular structure, a perforated block is embedded in the external connecting head, the output shaft is slidably connected with the perforated block, and the angular structure on the output shaft is limited relative to the circumferential direction of the perforated block.

[0012] As a preferred implementation form of the self-heat-dissipation end cover structure provided by the utility model, the outer side wall of the external connecting head is provided with circumferentially distributed ribs.

[0013] As a preferred implementation form of the self-heat-dissipation end cover structure provided by the utility model, a bearing is mounted on the front end cover, the output shaft is movably connected with the bearing, and an outer side of one end of the output shaft away from the external connecting head is provided with a limiting ring, and the limiting ring abuts against the bearing.

[0014] A reduction motor comprises the self-heat-dissipation end cover structure and a shell, the front end cover is arranged inside one end of the shell, the shell is connected with the mounting protruding blocks through screws, the end surface of the annular front cover abuts against the end surface of the shell, a reducer is mounted in the shell, and the reducer is fixedly connected with the output shaft.

[0015] Compared with the prior art, the self-heat-dissipation end cover structure has the following beneficial effects:

[0016] The self-heat-dissipation end cover structure and the speed reduction motor have the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the scheme in the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 The utility model provides the whole structure perspective diagram of the self-heat-dissipation end cover structure;

[0019] Figure 2 The utility model provides the whole structure plane schematic view of the self-heat-dissipation end cover structure;

[0020] Figure 3 For Figure 2 The middle A-A section schematic view;

[0021] Figure 4 The utility model provides the whole structure one visual angle exploded schematic view of the self-heat-dissipation end cover structure;

[0022] Figure 5 The utility model provides the whole structure another visual angle exploded schematic view of the self-heat-dissipation end cover structure;

[0023] Figure 6 The utility model provides the front end cover and annular front cover exploded schematic view in the self-heat-dissipation end cover structure;

[0024] Figure 7 The utility model provides the output shaft structure schematic view in the self-heat-dissipation end cover structure;

[0025] Figure 8 The utility model provides the whole structure perspective schematic view of the speed reduction motor;

[0026] Figure 9 The overall structure plane schematic diagram of the speed reduction motor is provided.

[0027] Figure 10 For Figure 9 The middle B-B section schematic diagram is provided.

[0028] Figure 11 The overall structure exploded schematic diagram of the speed reduction motor is provided.

[0029] The mark in the figure is explained as follows:

[0030] 1, front end cover; 2, mounting protruding block; 3, ventilation channel; 4, annular front cover; 5, output shaft; 6, external connector; 7, ring plate; 8, air outlet path; 9, partition strip; 10, buckle block; 11, buckle groove; 12, rib; 13, spring; 14, limit bolt; 15, gasket; 16, bearing; 17, limit ring; 18, cutting surface; 19, perforated block; 20, shell; 21, screw; 22, speed reducer. DETAILED DESCRIPTION

[0031] In order to make the person in the art better understand the utility model scheme, the technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings in the utility model embodiment. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the utility model.

[0032] As described in the background, the speed reduction motor needs to dissipate heat for the internal working elements when working, and the fan blade is provided on the rear end rotor of the speed reduction motor, and the fan blade rotates with the rotor to achieve the purpose of heat dissipation. Although the heat conduction ring and the heat dissipation fin are provided on the front end cover in the prior art, the heat dissipation of the front end cover can be accelerated, and the problem that the existing fan blade can only dissipate heat for the rear end of the rotor, resulting in that the front end of the rotor cannot dissipate heat is solved, but the heat dissipation effect is not good by using the heat transfer mode.

[0033] In order to solve this technical problem, the utility model provides a self-heat dissipation end cover structure and speed reduction motor, which is applied to the field of speed reduction motor.

[0034] Specifically, please refer to Figures 1-7The self-heat-dissipation end cover structure comprises a front end cover 1, mounting protruding blocks 2 are circumferentially arranged on the front end cover 1, and ventilation channels 3 are arranged between two adjacent mounting protruding blocks 2; a ring-shaped front cover 4 is buckled with the front end cover 1; an external connecting head 6 is provided with an annular plate 7 extending outward, the annular plate 7 is in abutment with a side surface of the ring-shaped front cover 4 close to the front end cover 1, the external connecting head 6 is connected with the front end cover 1 through an output shaft 5 and is in telescopic movement along the axial direction of the output shaft 5, and when the external connecting head 6 moves towards the front end cover 1, the annular plate 7, the ring-shaped front cover 4 and the front end cover 1 form an air outlet path 8 in communication with the ventilation channels 3.

[0035] Specifically, refer to Figures 8-11 The speed reduction motor comprises the self-heat-dissipation end cover structure and a shell 20, the front end cover 1 is arranged in the interior of one end of the shell 20 and the shell 20 is connected with the mounting protruding blocks 2 through screws 21, the end surface of the ring-shaped front cover 4 is in abutment with the end surface of the shell 20, and a speed reducer 22 is arranged in the shell 20 and is fixedly connected with the output shaft 5.

[0036] The self-heat-dissipation end cover structure and the speed reduction motor can connect the external connecting head 6 with the output shaft 5, replace the output shaft 5 with the external connecting head 6 to be connected with the driven part, can adapt to the driven parts of different structures, the external connecting head 6 can be telescopically slid along the axial direction of the output shaft 5, the annular plate 7 on the external connecting head 6 is away from the ring-shaped front cover 4, the air outlet path 8 formed in communication with the ventilation channels 3, air in the shell of the speed reduction motor can flow faster, the fan blades at the front end can achieve the purpose of rapid heat dissipation, the heat dissipation efficiency is higher, the heat dissipation effect is good, the operation stability of the speed reduction motor is improved, the failure rate is reduced, the service life of the speed reduction motor is improved, the overall structure is compact, the volume is small, and the use is safe and stable.

[0037] In order for those skilled in the art to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely in conjunction with the drawings.

[0038] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0039] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0040] Please refer to Figures 1-7The self-heat-dissipation end cover structure comprises a front end cover 1, three circumferentially distributed mounting protruding blocks 2 are arranged on the outer side wall of the front end cover 1, threaded holes are arranged on the mounting protruding blocks 2, a ventilation channel 3 is arranged between two adjacent mounting protruding blocks 2, a ring-shaped front cover 4 is buckled on the front end cover 1, the longitudinal section of the ring-shaped front cover 4 is L-shaped, a coaxial output shaft 5 is arranged on the front end cover 1, an external connector 6 is connected to one end of the output shaft 5, an annular plate 7 extending outward is arranged on the external connector 6, the annular plate 7 abuts against the side face of the ring-shaped front cover 4 close to the front end cover, the external connector 6 moves along the axial direction of the output shaft 5, when the external connector 6 moves towards the front end cover 1, the annular plate 7 moves away from the ring-shaped front cover 4, so that a gap is left between the annular plate 7 and the ring-shaped front cover 4, thereby forming an air outlet path 8 between the annular plate 7, the ring-shaped front cover 4 and the front end cover 1, which is communicated with the ventilation channel 3, so that the air is ventilated and dissipated, and when the output shaft 5 rotates, the external connector 6 can be driven to rotate.

[0041] A partition strip 9 is arranged on the outer side wall of the front end cover 1 between two adjacent mounting protruding blocks 2, the ventilation channel 3 is formed between two adjacent partition strips 9 and between the partition strip 9 and the mounting protruding block 2, one end of the partition strip 9 close to the ring-shaped front cover 4 protrudes from the end face of the front end cover 1 and abuts against the ring-shaped front cover 4, and a gap is left between the end face of the front end cover 1 and the ring-shaped front cover 4, after the annular plate 7 on the external connector 6 moves away from the ring-shaped front cover 4 to form a gap, the air in the ventilation channel 3 flows out of the front end cover 1 through the gap between the front end cover 1 and the ring-shaped front cover 4, thereby forming the air outlet path 8.

[0042] A buckle 10 is arranged on the outer side wall of the front end cover 1, a buckle groove 11 is arranged on the side wall of the ring-shaped front cover 4, the buckle 10 and the buckle groove 11 are arranged in matching mode, and the front end cover 1 and the ring-shaped front cover 4 are buckled and fixed together.

[0043] The outer side wall of the external connector 6 is provided with circumferentially distributed rib strips 12, the rib strips 12 are of a bent structure, when the external connector 6 is connected to a driven part, the rib strips 12 can be clamped into the driven part, so that when the output shaft 5 drives the external connector 6 to rotate, the driven part is driven to rotate, thereby realizing power transmission. Specifically, the external connector 6 can be connected to a drum structure part to transmit rotary motion.

[0044] The self-heat-dissipation end cover structure provided in Embodiment 1 is further optimized, specifically, Figure 3 , 4As shown in FIG. 7, the external connecting head 6 is connected with the output shaft 5 through a spring 13, one end of the output shaft 5 extends out of the external connecting head 6 and the extended end is fixedly connected with a limiting bolt 14, the external connecting head 6 can slide along the axial direction of the output shaft 5, a gasket 15 is installed on the output shaft 5, an annular groove is arranged on the output shaft 5, the gasket 15 is in a circular arc sheet structure, the gasket 15 is embedded in the annular groove, the gasket 15 is limited in the axial direction of the output shaft 5 and can rotate in the circumferential direction of the output shaft 5, the spring 13 is fixedly connected with the gasket 15, and when the output shaft 5 rotates, the spring 13 rotates synchronously with the external connecting head 6. Furthermore, a bearing 16 is installed on the front end cover 1, the output shaft 5 is movably connected with the bearing 16, and a limiting ring 17 is arranged outside the end of the output shaft 5 away from the external connecting head 6, the limiting ring 17 abuts against the bearing 16, and the axial position of the output shaft 5 is limited by the limiting ring 17 and the limiting bolt 14.

[0045] A cutting surface 18 is arranged outside a section of the output shaft 5 close to the external connecting head 6, forming an angular structure, a perforated block 19 is embedded in the external connecting head 6, the output shaft 5 is slidably connected with the perforated block 19, and the angular structure on the output shaft 5 is limited in the circumferential direction of the perforated block 19, when the output shaft 5 rotates, the external connecting head 6 can be driven to rotate, and at the same time, the subsequent sliding of the external connecting head 6 along the axial direction of the output shaft 5 is not affected.

[0046] Please refer to Figures 8-11 , a speed reduction motor is provided, which comprises the self-heat dissipation end cover structure in embodiment 2 and a shell 20, the front end cover 1 is arranged inside one end of the shell 20, and the shell 20 is connected with the mounting protruding block 2 through a screw 21, the screw 21 is matched with the threaded hole on the mounting protruding block 2, the front end cover 1 is fixed on the shell 20 through the screw 21, thereby fixing the annular front cover 4 and the shell 20, and the end surface of the annular front cover 4 abuts against the end surface of the shell 20, ensuring the sealing property, a speed reducer 22 is installed in the shell 20, the speed reducer 22 is fixedly connected with the output shaft 5, the speed reducer 22 is connected with the transmission shaft on the motor, thereby realizing speed reduction transmission, after the self-heat dissipation end cover structure is installed on the shell 20, the outer side surface of the mounting protruding block 2 and the partition strip 9 is tightly attached with the inner wall of the shell 20, a certain distance is left between the speed reducer 22 and the shell 20, forming a heat dissipation air duct, and the heat dissipation air duct is communicated with the ventilation channel 3.

[0047] The working principle of the self-heat-dissipation end cover structure and the speed reduction motor is as follows: the external connecting head 6 is connected with the output shaft 5, the external connecting head 6 is adopted to replace the output shaft 5 to be connected with the driven part, different structures of the driven part can be adapted, the external connecting head 6 can slide along the axial direction of the output shaft 5, the ring plate 7 on the external connecting head 6 is away from the annular front cover 4, the air outlet path 8 formed is communicated with the air duct 3, the air flow in the casing of the speed reduction motor can be accelerated, the fan blade at the front end is matched, the purpose of rapid heat dissipation is achieved, the heat dissipation efficiency is higher, the heat dissipation effect is good, the operation stability of the speed reduction motor is improved, the failure rate is reduced, the service life of the speed reduction motor can be improved, the overall structure layout is compact, the volume is small, and the use is safe and stable.

[0048] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electric connection or each other can communicate; can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element internals or the interaction of two elements, unless another definite limitation. For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the utility model.

[0049] Obviously, the above described embodiments are only part of the embodiments of the utility model, not all the embodiments, and the preferred embodiments of the utility model are given in the drawings, but do not limit the patent range of the utility model. The utility model can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing specific embodiments can be modified, or some technical features can be replaced equivalently. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection range of the utility model.

Claims

1. A self-heating end cover structure, comprising a front end cover, characterized in that: The front end cover is provided with circumferentially distributed mounting protrusions, and a ventilation duct is provided between two adjacent mounting protrusions; an annular front cover, the annular front cover is buckled with the front end cover; an external connecting head, the external connecting head is provided with an outwardly extending ring plate, the ring plate abuts against a side surface of the annular front cover close to the front end cover, the external connecting head and the front end cover are connected by an output shaft and the external connecting head telescopically moves along the axial direction of the output shaft, and when the external connecting head moves toward the front end cover, an air outlet path communicating with the ventilation duct is formed between the ring plate, the annular front cover and the front end cover.

2. A self-heating end cap structure according to claim 1, characterized in that: The outer side wall of the front end cover is provided with a partition bar between two adjacent mounting protrusion blocks, and a ventilation passage is formed between the two adjacent partition bars and between the partition bar and the mounting protrusion blocks.

3. The self-heating end cap structure according to claim 2, characterized in that: One end of the spacer bar close to the annular front cover extends out of the end surface of the front end cover and the spacer bar abuts against the annular front cover, and a gap is left between the end surface of the front end cover and the annular front cover.

4. The self-heating end cap structure according to claim 1, characterized in that: The outer side wall of the front end cover is provided with a buckle block, the side wall of the annular front cover is provided with a buckle groove, and the buckle block is matched with the buckle groove.

5. The self-heating end cover structure according to claim 1, characterized in that: The external connector is connected to the output shaft via a spring. One end of the output shaft extends out of the external connector and the extended end is fixedly connected to a limiting bolt. The external connector can slide along the axial direction of the output shaft.

6. The self-heating end cap structure according to claim 5, characterized in that: A gasket is installed on the output shaft. The gasket is limited along the axial direction of the output shaft and can rotate along the circumferential direction of the output shaft. The spring is fixedly connected to the gasket.

7. The self-heating end cap structure according to claim 5, characterized in that: The output shaft is provided with a section of the outer side close to the external connector to form an angular structure. A perforated block is embedded in the external connector. The output shaft is slidably connected to the perforated block, and the angular structure on the output shaft is circumferentially limited relative to the perforated block.

8. The self-heating end cap structure according to claim 1, characterized in that: The outer side wall of the external connecting head is provided with ribs distributed around the circumference.

9. The self-heating end cap structure according to claim 1, characterized in that: A bearing is installed on the front end cover, the output shaft is movably connected to the bearing, and a limiting ring is provided on the outer side of one end of the output shaft away from the external connector, and the limiting ring abuts against the bearing.

10. A reduction motor, characterized in that: It includes the self-heating end cover structure and the outer shell as described in any one of claims 1 to 9, the front end cover is arranged inside one end of the outer shell and the outer shell is connected to the mounting protrusion block by screws, the end face of the annular front cover abuts the end face of the outer shell, and a reducer is installed in the outer shell, and the reducer is fixedly connected to the output shaft.

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