A servo motor with good waterproof performance

Abstract

The present invention relates to the technical field of servo motors, and in particular to a servo motor with good waterproof performance, comprising a motor front shell and a motor rear shell, wherein a sealing mechanism, a docking installation mechanism, a purge mechanism, a covering mechanism and a locking mechanism are arranged between the motor front shell and the motor rear shell; the covering mechanism comprises a covering plate arranged on the outer wall of the motor front shell, wherein the covering plate covers the docking gap between the motor front shell and the motor rear shell, and telescopic grooves are opened on four sides of the outer wall of the motor front shell, and four inner walls of the telescopic grooves are fixedly connected with first springs, and the four first springs are fixedly connected with limiting columns sliding on the inner wall of the telescopic groove at one end away from each other, and the four limiting columns are used to limit and block the covering plate; the present invention can improve the waterproof effect, prevent moisture from entering the interior of the servo motor, avoid short circuiting electronic components in the motor, and improve the service life of the electronic components.

Description

Technical Field

[0001] The present invention relates to the technical field of servo motors, and in particular to a servo motor with good waterproof performance. Background Art

[0002] The servo motor is a key actuator in the servo system, responsible for driving the precise movement of mechanical parts. It is a precision auxiliary transmission device that can achieve precise control of speed and position, and has the ability to efficiently convert voltage command signals into torque and speed, thereby driving the controlled object. The rotor speed of the servo motor is strictly adjusted according to the input control signal and has fast response characteristics. In the automation control system, the servo motor, as an actuator, exhibits excellent performance such as short electromechanical time constant and high linearity. It can accurately convert the received electrical signal into angular displacement or angular velocity output on the motor shaft. According to the different power supply methods, servo motors are mainly divided into two categories: DC servo motors and AC servo motors. Their notable characteristics are: when there is no control signal input (that is, the signal voltage is zero), the motor will not rotate; at the same time, as the load torque increases, the motor speed will decrease steadily at a constant rate. The application scope of servo motors is extremely wide. Scenarios that require power drive and have strict requirements on motion accuracy usually involve the application of servo motors.

[0003] Currently, in the prior art, the fixing connection between the front cover and the rear cover of the servo motor generally adopts the matching method of bolts and threaded holes. At the joint surface of the front cover and the rear cover, the bolts and the surrounding areas of the threaded holes are tightly connected to form a certain sealing effect, which helps to prevent the penetration of external moisture in a humid environment. However, in the non-direct contact area between each group of bolts and the threaded holes, the tightness of the connection is relatively low, which may cause external moisture to penetrate into the servo motor in a humid environment, thereby causing short circuit, damage to internal electronic components, and even burning failure of the servo motor.

[0004] In addition, during the assembly process, the fixed installation of bolts and threaded holes needs to rely on professional tools, which requires workers to carry tools with them, increasing their workload. At the same time, the tightening process of bolts and threaded holes requires repeated rotation of tools, which not only easily leads to fatigue of the workers' arms, but also prolongs the overall assembly time, thereby adversely affecting the overall assembly efficiency. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a servo motor with good waterproof performance.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a servo motor with good waterproof performance, comprising a motor front shell and a motor rear shell, wherein a sealing mechanism, a docking installation mechanism, a purge mechanism, a covering mechanism and a locking mechanism are arranged between the motor front shell and the motor rear shell;

[0007] The covering mechanism comprises a covering plate arranged on the outer wall of the front shell of the motor, the covering plate covers the joint gap between the front shell of the motor and the rear shell of the motor, the outer wall of the front shell of the motor is provided with telescopic grooves on four sides, the inner walls of the four telescopic grooves are fixedly connected with first springs, and the four first springs are fixedly connected with limiting posts sliding on the inner walls of the telescopic grooves at one end away from each other, and the four limiting posts are used to limit and block the covering plate;

[0008] The locking mechanism includes square holes that are penetrated at the four corners of one end of the front shell of the motor and extend into the telescopic slot. The four corners of one end of the rear shell of the motor are fixedly connected with square columns. The other ends of the four square columns are provided with a first square slot. The inner walls of the four first square slots are provided with a locking column. The four groups of the locking columns and the square slots are fixedly connected with a second spring. One end of the four limit columns is provided with a locking slot that matches the shape of the locking column. The four locking columns are respectively inserted into the four locking slots to lock the limit columns.

[0009] Preferably, the sealing mechanism comprises a sealing groove provided on the inner side of a corresponding square hole at one end of the front housing of the motor, an air bag is provided on the inner wall of the sealing groove, and a sealing ring is fixedly connected to one end of the rear housing of the motor.

[0010] Preferably, the sealing mechanism further comprises an annular drying plate fixedly connected to the inner wall of the motor front shell, the annular drying plate is arranged at the joint gap between the motor front shell and the motor rear shell, and an annular heating plate is fixedly connected to the inner wall of the annular drying plate.

[0011] Preferably, the docking installation mechanism includes fixing plates fixedly connected to the four sides of the outer wall of the motor rear shell, the four fixing plates are symmetrically fixedly connected with buckles at one end close to each other, and the four sides of the outer wall of the motor front shell are symmetrically provided with second square grooves.

[0012] Preferably, the docking installation mechanism also includes positioning grooves opened at the four corners of one end of the front shell of the motor, the inner walls of the four positioning grooves are provided with positioning columns, the four positioning columns and the rear shell of the motor are fixedly connected, and the diameter of the upper positioning groove is smaller than the diameter of the lower positioning groove.

[0013] Preferably, the covering mechanism further comprises square notches opened on four sides of the inner wall of the covering plate, the four square notches are respectively arranged on the outer walls of four fixed plates, and a sealing plate is fixedly connected to one side of the inner wall of the motor front shell corresponding to the annular drying plate.

[0014] Preferably, the locking mechanism also includes a rope fixedly connected to the inner side of the second spring corresponding to one end of the locking column and passing through the square column and the motor back shell, the other ends of the four ropes are fixedly connected to a pulling plate, the four sides of the pulling plate at one end close to the motor back shell are fixedly connected to a first magnet, the four sides of the motor back shell at one end close to the pulling plate are fixedly connected to a second magnet, and the four groups of the first magnets and the second magnets have different magnetic properties.

[0015] Preferably, the locking mechanism also includes a circular groove opened on one end of the motor rear housing near the pulling plate, the number of the circular grooves is set to four, the inner walls of the four circular grooves are slidably connected with circular columns, and the four circular columns and the pulling plate are fixedly connected.

[0016] Preferably, the purge mechanism comprises inclined holes opened on the inner wall of the cover plate, the inclined holes are arranged in a plurality of groups, the plurality of groups of inclined holes are connected via a first connecting hole, and the plurality of the first connecting holes are connected via a second connecting hole.

[0017] Preferably, the blowing mechanism further comprises a hot air blower fixedly connected to the top end of the cover plate, and the hot air blower is connected to one of the second connecting holes via a connecting pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] By setting the sealing mechanism, the sealing ring can be squeezed into the interior of the airbag during docking, and the airbag can wrap the other end of the sealing ring, so as to achieve a sealing effect. The gap during docking can be sealed by the annular drying plate, and the moisture can be absorbed. The annular heating plate can heat the annular drying plate to ensure the drying effect of the annular drying plate, thereby improving the waterproof effect, preventing moisture from entering the interior of the servo motor, avoiding short circuits of electronic components in the motor, and improving the service life of the electronic components.

[0020] By setting the docking installation mechanism, the motor front shell and the motor rear shell can be quickly docked and installed, saving installation time, and the covering mechanism can be used to limit the outer side of the docking installation mechanism to prevent the docking installation mechanism from being opened at will, thereby improving safety;

[0021] By setting the locking mechanism, the limit column can be locked and blocked from the inside, so that it cannot be seen from the outside, thereby improving the confidentiality and further improving the safety;

[0022] By setting up the blowing mechanism, air blowing can be performed on both sides of the butt joint gap, and the air blown is hot air, so moisture can be blown away in a humid environment, preventing moisture from entering the inside of the servo motor through the butt joint gap, thereby further improving the waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of a servo motor with good waterproofness of the present invention;

[0024] Figure 2 A bottom view of a servo motor with good waterproof performance according to the present invention from another perspective;

[0025] Figure 3 This is a disassembled diagram of a servo motor with good waterproof performance according to the present invention;

[0026] Figure 4 Another perspective view of the disassembly of a servo motor with good waterproof performance according to the present invention;

[0027] Figure 5 A cross-sectional view of a motor front housing of a servo motor with good waterproof performance according to the present invention;

[0028] Figure 6 This is a structural diagram of the motor rear housing portion of a servo motor with good waterproof performance according to the present invention;

[0029] Figure 7 It is a cross-sectional view from another perspective of the front housing of a servo motor with good waterproofness according to the present invention;

[0030] Figure 8 A cross-sectional view of a motor rear housing of a servo motor with good waterproofness according to the present invention;

[0031] Fig. 9 A further cross-sectional view of a motor rear housing of a servo motor with good waterproofness according to the present invention;

[0032] Fig.10 This is a partial structural separation diagram of a servo motor with good waterproofness according to the present invention;

[0033] Fig.11 Another perspective view of a partial structure of a servo motor with good waterproof performance according to the present invention;

[0034] Fig.12 This is a structural diagram of a cover plate of a servo motor with good waterproof performance according to the present invention;

[0035] Fig.13 This is a cross-sectional view of a cover plate of a servo motor with good waterproofness according to the present invention.

[0036] In the figure: 1. front housing of the motor; 2. rear housing of the motor; 3. covering plate; 4. telescopic slot; 5. first spring; 6. limiting column; 7. square hole; 8. square column; 9. first square slot; 10. clamping column; 11. second spring; 12. clamping slot; 13. sealing slot; 14. airbag; 15. sealing ring; 16. annular drying plate; 17. annular heating plate; 18. fixing plate; 19. buckle; 20. second square slot; 21. positioning slot; 22. positioning column; 23. square notch; 24. rope; 25. pulling plate; 26. first magnet; 27. second magnet; 28. circular slot; 29. ​​circular column; 30. inclined hole; 31. first connecting hole; 32. second connecting hole; 33. hot air blower; 34. connecting pipe. DETAILED DESCRIPTION

[0037] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0038] like Figure 1-Figure 13 A servo motor with good waterproof performance shown in the figure comprises a motor front shell 1 and a motor rear shell 2, wherein a sealing mechanism, a docking installation mechanism, a purge mechanism, a covering mechanism and a locking mechanism are arranged between the motor front shell 1 and the motor rear shell 2;

[0039] like Figure 1 , Figure 2 , Figure 5 As shown, the covering mechanism includes a covering plate 3 arranged on the outer wall of the motor front shell 1, the covering plate 3 covers the butt joint gap between the motor front shell 1 and the motor rear shell 2, and telescopic grooves 4 are opened on four sides of the outer wall of the motor front shell 1, and the inner walls of the four telescopic grooves 4 are fixedly connected with first springs 5, and the four first springs 5 ​​are fixedly connected with a limiting column 6 sliding on the inner wall of the telescopic groove 4 at one end away from each other, and the four limiting columns 6 are used to limit and block the covering plate 3;

[0040] like Figure 3 , Figure 4 , Fig. 9 As shown, the locking mechanism includes square holes 7 which are penetrated at the four corners of one end of the motor front housing 1 and extend into the telescopic slot 4. Square columns 8 are fixedly connected at the four corners of one end of the motor rear housing 2. The other ends of the four square columns 8 are provided with first square slots 9. The inner walls of the four first square slots 9 are provided with locking columns 10. Second springs 11 are fixedly connected between the four groups of locking columns 10 and the square slots. One end of the four limiting columns 6 is provided with a locking slot 12 which is adapted to the shape of the locking column 10. The four locking columns 10 are respectively inserted into the four locking slots 12 and lock the limiting columns 6.

[0041] like Figure 7 , Figure 8As shown, the sealing mechanism includes a sealing groove 13 provided on the inner side of the corresponding square hole 7 at one end of the motor front housing 1, an air bag 14 is provided on the inner wall of the sealing groove 13, and a sealing ring 15 is fixedly connected to one end of the motor rear housing 2. The thickness of the sealing ring 15 is less than the thickness of the sealing groove 13, so that the sealing ring 15 can be nested in the air bag 14, so that the blocking operation can be performed, thereby improving the sealing effect and the waterproof effect.

[0042] like Figure 4 , Figure 7 As shown, the sealing mechanism also includes an annular drying plate 16 fixedly connected to the inner wall of the motor front housing 1, the annular drying plate 16 is arranged at the joint gap between the motor front housing 1 and the motor rear housing 2, an annular heating plate 17 is fixedly connected to the inner wall of the annular drying plate 16, and a sealing plate is fixedly connected to one side of the inner wall of the motor front housing 1 corresponding to the annular drying plate 16. The annular drying plate 16 can absorb moisture, and the annular heating plate 17 can heat the annular drying plate 16 to ensure the drying effect of the annular drying plate 16, further improve the sealing effect, and during the heating process, the sealing plate can prevent hot air from entering the electronic components in the servo motor.

[0043] like Figure 3 , Figure 6 As shown, the docking installation mechanism includes a fixing plate 18 fixedly connected to the four sides of the outer wall of the motor rear housing 2, and the four fixing plates 18 are symmetrically fixedly connected with buckles 19 at one end close to each other, and the four sides of the outer wall of the motor front housing 1 are symmetrically provided with second square grooves 20. During docking installation, the buckles 19 can be inserted into the second square grooves 20, thereby completing the limiting fixation of the motor rear housing 2, and then completing the docking operation of the motor rear housing 2 and the motor front housing 1.

[0044] like Figure 3 , Figure 4 As shown, the docking installation mechanism also includes positioning grooves 21 provided at four corners of one end of the motor front housing 1, and the inner walls of the four positioning grooves 21 are all provided with positioning posts 22, and the four positioning posts 22 are all fixedly connected to the motor rear housing 2, and the diameter of the upper positioning groove 21 is smaller than that of the lower positioning groove 21. The cooperation between the positioning posts 22 and the positioning grooves 21 can align the positions during docking installation, so that the installation operation can be completed quickly.

[0045] like Figure 7 , Fig.12 As shown, the covering mechanism further includes square notches 23 formed on four sides of the inner wall of the covering plate 3, and four square notches 23 are respectively provided on the outer walls of four fixing plates 18. The fixing plates 18 can be fixed by covering the fixing plates 18 with the square notches 23, and the fixing plates 18 are elastic and can bend to a certain extent.

[0046] like Figure 9-11As shown, the locking mechanism also includes a rope 24 fixedly connected to the inner side of the second spring 11 at one end of the card column 10 and passing through the square column 8 and the motor rear housing 2. The other ends of the four ropes 24 are fixedly connected to a pulling plate 25. The four sides of the pulling plate 25 near the motor rear housing 2 are fixedly connected to a first magnet 26. The four sides of the motor rear housing 2 near the pulling plate 25 are fixedly connected to a second magnet 27. The four groups of first magnets 26 and second magnets 27 have different magnetic properties. When the card column 10 is inserted into the card slot 12, the rope 24 is in a tensioned state, and the operation of the first magnet 26 and the second magnet 27 attracting each other due to their different magnetic properties can limit the pulling plate 25, so that the pulling plate 25 and the motor rear housing 2 are in an integrated state and are not easy to be found, thereby improving safety.

[0047] like Figure 8 As shown, the locking mechanism also includes a circular groove 28 provided at one end of the motor rear housing 2 near the pulling plate 25. There are four circular grooves 28, and the inner walls of the four circular grooves 28 are all slidably connected with circular columns 29. The four circular columns 29 are fixedly connected to the pulling plate 25. Through the cooperation of the circular grooves 28 and the circular columns 29, the pulling plate 25 can be limited to prevent misalignment.

[0048] like Fig.12 , Fig.13 As shown, the purge mechanism includes an inclined hole 30 formed on the inner wall of the cover plate 3, and the number of the inclined holes 30 is set to multiple groups, and the multiple groups of inclined holes 30 are connected through the first connecting hole 31, and the multiple first connecting holes 31 are connected through the second connecting hole 32. Hot air can be sprayed out through the inclined holes 30, so that the moisture can be blown away to both sides to avoid entering the inside of the servo motor, and the multiple groups of inclined holes 30 can be connected through the arrangement of the first connecting hole 31 and the second connecting hole 32.

[0049] like Fig.12 , Fig.13 As shown, the blowing mechanism also includes a hot air blower 33 fixedly connected to the top of the cover plate 3, and the hot air blower 33 and one of the second connecting holes 32 are connected through a connecting pipe 34. The hot air blower 33 provides hot air to the inclined hole 30 to ensure continuous supply of hot air.

[0050] Working principle: First, align the positioning column 22 with the positioning groove 21 and insert it into the positioning groove 21. Since the diameter of the upper positioning column 22 is smaller than that of the lower positioning column 22, it can prevent errors in the docking position and quickly complete the docking installation operation. The sealing ring 15 is inserted into the sealing groove 13, and the airbag 14 is squeezed to deform it and tightly wrap it around one end of the sealing groove 13, thereby improving the sealing effect. The moisture can be absorbed and processed by the annular drying plate 16, and the annular heating plate 17 can heat the annular drying plate 16, further improving the sealing effect, preventing moisture in the humid air from penetrating into the servo motor during use, avoiding short circuits caused by internal electronic components, and extending the service life.

[0051] Furthermore, since the fixing plate 18 is elastic and one end of the buckle 19 is set as an inclined surface, the fixing plate 18 will be deformed during the docking installation process, and when the buckle 19 is aligned with the second square groove 20, it will be stuck in the second square groove 20, so that the docking installation operation can be completed. During the docking installation, the limiting column 6 shrinks inside the telescopic groove 4 and blocks the limiting column 6 through the covering plate 3. After the docking installation is completed, the clamping column 10 shrinks in the first square groove 9 to compress the second spring 11. When the covering plate 3 is moved and the square notch 23 is completely covered on the fixing plate 18, , the elastic return action of the first spring 5 can make the limit column 6 extend out and be stuck at one end of the covering plate 3, so that the fixing plate 18 can be reinforced and limited. At the same time, the elastic return action of the second spring 11 can make the clamping column 10 stuck in the clamping slot 12 to complete the limit of the limit column 6, preventing it from being arbitrarily operated by outsiders, thereby improving the overall safety, and when the clamping column 10 is stuck in the clamping slot 12, the rope 24 is in a tensioned state, and the first magnet 26 and the second magnet 27 attract each other, so that the pulling plate 25 and the motor rear shell 2 are integrated into one, thereby improving the confidentiality and further improving the safety;

[0052] Furthermore, by starting the hot air blower 33 to generate hot air, the hot air enters the second connecting hole 32 and the first connecting hole 31 through the connecting pipe 34. Since the second connecting hole 32 and the first connecting hole 31 connect multiple groups of inclined holes 30, the hot air can be ejected from the inclined holes 30, thereby blowing away moisture and preventing moisture from entering the servo motor from the docking gap, further improving the sealing effect.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A servo motor with good waterproof performance, comprising a motor front housing (1) and a motor rear housing (2), characterized in that: A sealing mechanism, a docking installation mechanism, a purging mechanism, a covering mechanism and a locking mechanism are provided between the motor front housing (1) and the motor rear housing (2); The covering mechanism comprises a covering plate (3) arranged on the outer wall of the motor front housing (1), the covering plate (3) covering the joint gap between the motor front housing (1) and the motor rear housing (2), the outer wall of the motor front housing (1) is provided with telescopic grooves (4) on four sides, the inner walls of the four telescopic grooves (4) are fixedly connected to first springs (5), the four first springs (5) are fixedly connected at one end away from each other to limit posts (6) sliding on the inner wall of the telescopic groove (4), and the four limit posts (6) are used to limit and block the covering plate (3); The locking mechanism comprises square holes (7) penetrating at four corners of one end of the motor front housing (1) and extending into the telescopic slot (4); square columns (8) are fixedly connected at four corners of one end of the motor rear housing (2); the other ends of the four square columns (8) are each provided with a first square slot (9); the inner walls of the four first square slots (9) are each provided with a locking column (10); a second spring (11) is fixedly connected between the four groups of the locking columns (10) and the square slots; one end of the four limiting columns (6) is each provided with a locking slot (12) matching the shape of the locking column (10); the four locking columns (10) are respectively locked into the four locking slots (12) and lock the limiting columns (6); The sealing mechanism comprises a sealing groove (13) provided on the inner side of a corresponding square hole (7) at one end of the motor front housing (1), an air bag (14) being provided on the inner wall of the sealing groove (13), and a sealing ring (15) being fixedly connected to one end of the motor rear housing (2); The docking installation mechanism comprises fixing plates (18) fixedly connected to four sides of the outer wall of the motor rear housing (2), the four fixing plates (18) are symmetrically fixedly connected with buckles (19) at one end close to each other, and the outer wall of the motor front housing (1) is symmetrically provided with second square grooves (20); The docking installation mechanism further comprises positioning grooves (21) provided at four corners of one end of the motor front housing (1), the inner walls of the four positioning grooves (21) are each provided with a positioning column (22), the four positioning columns (22) and the motor rear housing (2) are each fixedly connected, and the diameter of the upper positioning groove (21) is smaller than the diameter of the lower positioning groove (21); The covering mechanism further comprises square notches (23) formed on four sides of the inner wall of the covering plate (3), the four square notches (23) being respectively arranged on the outer walls of four fixing plates (18), and a sealing plate being fixedly connected to one side of the inner wall of the motor front housing (1) corresponding to the annular drying plate (16); The locking mechanism further comprises a rope (24) fixedly connected to the inner side of the second spring (11) at one end of the locking column (10) and passing through the square column (8) and the motor rear housing (2); the other ends of the four ropes (24) are fixedly connected to a pulling plate (25); the four sides of one end of the pulling plate (25) close to the motor rear housing (2) are fixedly connected to a first magnet (26); the four sides of one end of the motor rear housing (2) close to the pulling plate (25) are fixedly connected to a second magnet (27); and the four groups of the first magnets (26) and the second magnets (27) have different magnetic properties.

2. A servo motor with good waterproofness according to claim 1, characterized in that: The sealing mechanism further comprises an annular drying plate (16) fixedly connected to the inner wall of the motor front housing (1); the annular drying plate (16) is arranged at the joint gap between the motor front housing (1) and the motor rear housing (2); and an annular heating plate (17) is fixedly connected to the inner wall of the annular drying plate (16).

3. A servo motor with good waterproofness according to claim 1, characterized in that: The locking mechanism further comprises a circular groove (28) formed on one end of the motor rear housing (2) close to the pulling plate (25), wherein the number of the circular grooves (28) is four, the inner walls of the four circular grooves (28) are all slidably connected to circular columns (29), and the four circular columns (29) and the pulling plate (25) are all fixedly connected.

4. The servo motor with good waterproofness according to claim 1, characterized in that: The purge mechanism comprises an inclined hole (30) formed on the inner wall of the cover plate (3), wherein the inclined holes (30) are provided in a plurality of groups, the plurality of groups of inclined holes (30) are connected via a first connecting hole (31), and the plurality of first connecting holes (31) are connected via a second connecting hole (32).

5. A servo motor with good waterproofness according to claim 4, characterized in that: The blowing mechanism further comprises a hot air blower (33) fixedly connected to the top end of the cover plate (3), wherein the hot air blower (33) is connected to one of the second connecting holes (32) via a connecting pipe (34).

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