Servo motor casing structure

Abstract

The utility model provides a servo motor casing structure, and belongs to the technical field of motors. The problem that an existing motor is poor in heat dissipation is solved. The servo motor shell structure comprises a front end cover and a rear end cover which are fixedly connected, and a machine barrel clamped and positioned between the front end cover and the rear end cover, an annular groove is formed in the front end face of the machine barrel, and a notch of the annular groove is closed by the front end cover; a plurality of strip-shaped grooves with arc-shaped cross sections are axially formed in the bottom wall of the annular groove in a penetrating manner, and are uniformly distributed in the circumferential direction of the machine barrel; a division bar dividing the strip-shaped groove into two groove bodies distributed in the circumferential direction of the machine barrel is formed in the strip-shaped groove, the front end of the division bar extends to the front end face of the machine barrel so as to separate the front ends of the two groove bodies in the same strip-shaped groove, the rear end of the division bar is close to the rear end face of the machine barrel, and the rear ends of the two groove bodies in the same strip-shaped groove are communicated. A liquid inlet and a liquid outlet are formed in the outer wall of the machine barrel and are respectively communicated with the two groove bodies in the same strip-shaped groove. The servo motor casing structure is good in heat dissipation.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors and relates to a servo motor, in particular to a casing structure of a servo motor. Background Art

[0002] A servo motor is an engine that controls the operation of mechanical components in a servo system. It is an auxiliary motor indirect speed change device that can convert voltage signals into torque and speed to drive the controlled object.

[0003] An existing servo motor, such as a casing and a motor for a motor disclosed in the Chinese Patent Library (application number: 202122601258.5), includes: a first shell and a second shell, both of which are cylindrical, the second shell is sleeved on the outside of the first shell, and there is a gap between the first shell and the second shell; a partition, which is arranged in the gap and divides the gap into a plurality of first channels and a plurality of second channels, the first channel and the second channel are both annular channels extending along the circumference of the first shell, and the first channel and the second channel are arranged in sequence along the axial direction of the first shell, the first end of the second channel is connected to the first end of one of the two first channels adjacent to it, and the second end of the second channel is connected to the second end of the other of the two first channels adjacent to it, so as to be connected to form a cooling water channel, and a water inlet and a water outlet are respectively provided at both ends of the cooling water channel.

[0004] In the above-mentioned housing, the cooling water channel is spiral-shaped, which reduces the contact between the cooling water and the bottom wall of the cooling water channel, affecting the heat dissipation effect. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a servo motor casing structure with good heat dissipation effect.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a servo motor casing structure, including a front end cover and a rear end cover that are fixedly connected to each other and a barrel clamped and positioned between the front end cover and the rear end cover, and the barrel is cylindrical, characterized in that an annular groove coaxial with the barrel is provided on the front end face of the barrel, and the front end cover closes the notch of the annular groove; a strip groove with a circular arc cross section axially penetrates the bottom wall of the annular groove, and there are multiple strip grooves that are evenly distributed along the circumference of the barrel; a partition bar is formed in the strip groove to divide the strip groove into two groove bodies distributed along the circumference of the barrel, and the front end of the partition bar extends to the front end face of the barrel to separate the front ends of the two groove bodies in the same strip groove, the rear end of the partition bar is close to the rear end face of the barrel, and the rear ends of the two groove bodies in the same strip groove are connected; a liquid inlet and a liquid outlet are provided on the outer wall of the barrel, and the liquid inlet and the liquid outlet are respectively connected to the two groove bodies in the same strip groove.

[0007] When in use, the coolant enters the corresponding slot body from the liquid inlet, flows forward to the annular groove, and then circulates back and forth in the subsequent slot body and is finally discharged through the liquid outlet.

[0008] With the cooperation of strip grooves, annular grooves and spacers, the cooling water circulates along the axial direction of the barrel, which greatly increases the contact area between the cooling water and the side wall of the barrel, greatly improves the heat dissipation speed and efficiency of the casing, and thus increases the life of the motor and working stability.

[0009] In the above-mentioned servo motor housing structure, the above-mentioned barrel includes a cylindrical body and a circle of strip blocks formed on the outer wall of the cylindrical body. The end faces of the strip blocks and the cylindrical body are arranged flush, and the circle of strip blocks are evenly spaced along the circumference of the cylindrical body, and each strip block is formed with the above-mentioned strip groove. There is a gap between two adjacent strip blocks, which is conducive to the heat dissipation of the strip blocks, thereby making the heat dissipation of the housing better.

[0010] In the above-mentioned servo motor casing structure, the cross section of the strip block is in the shape of an arc coaxial with the barrel to enhance the overall strength of the casing.

[0011] In the above-mentioned servo motor casing structure, the barrel is an integrated structure, which effectively enhances the overall strength of the casing.

[0012] In the above-mentioned servo motor casing structure, the barrel is a cast integral part.

[0013] In the above-mentioned servo motor casing structure, the outer wall of the barrel extends outward from the liquid inlet and the liquid outlet to form a liquid inlet ring and a liquid outlet ring respectively, so as to facilitate the connection between the casing and the water supply equipment.

[0014] In the above-mentioned servo motor casing structure, the front cover and the rear cover are fixedly connected by a circle of bolts, and the length of the bolts extends along the axial direction of the barrel. A through hole is axially penetrated on the barrel for the bolt rod to pass through. The number of through holes and bolts is the same and the positions correspond one to one. It has the advantages of simple structure and easy assembly.

[0015] Compared with the prior art, the servo motor housing structure has the following advantages:

[0016] 1. With the cooperation of strip grooves, annular grooves and spacers, the cooling water circulates along the axial direction of the barrel, which greatly increases the contact area between the cooling water and the side wall of the barrel, greatly improves the heat dissipation speed and efficiency of the casing, and thus improves the life of the motor and working stability.

[0017] 2. The spacers are used to form the trough body and to support the strip grooves to increase the compressive resistance of the strip grooves. That is, in the present application, the spacers have a dual purpose, simplifying the structure and facilitating assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional schematic diagram of a servo motor.

[0019] Figure 2 It is a three-dimensional schematic diagram of the barrel.

[0020] Figure 3 It is a cross-sectional schematic diagram of the barrel.

[0021] In the figure, 1, barrel; 1a, annular groove; 1b, strip groove; 1c, groove body; 1d, spacer; 1e, liquid inlet; 1f, liquid outlet; 1g, cylindrical body; 1h, strip block; 1i, through hole; 2, front end cover; 3, rear end cover. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] like Figure 1 As shown, the servo motor housing structure includes a cylindrical barrel 1 and a front end cover 2 and a rear end cover 3 that are fixedly connected to each other, and the barrel 1 is clamped and positioned between the front end cover 2 and the rear end cover 3, that is, at this time, the two end surfaces of the barrel 1 are pressed tightly against the front end cover 2 and the rear end cover 3 respectively.

[0024] Specifically,

[0025] like Figure 2 and Figure 3 As shown, an annular groove 1a coaxial with the barrel 1 is provided on the front end face of the barrel 1, and the front end cover 2 closes the notch of the annular groove 1a. A strip groove 1b axially penetrates the bottom wall of the annular groove 1a, and the cross section of the strip groove 1b is in the shape of an arc coaxial with the barrel 1. There are multiple strip grooves 1b and they are evenly distributed along the circumference of the barrel 1. A partition bar 1d is formed in the strip groove 1b to divide the strip groove 1b into two groove bodies 1c distributed along the circumference of the barrel 1, and the length of the partition bar 1d extends axially along the barrel 1. Among them, the front end of the partition bar 1d extends to the front end face of the barrel 1 to separate the front ends of the two groove bodies 1c in the same strip groove 1b, that is, at this time, the front end of the partition bar 1d is located in the annular groove 1a; the rear end of the partition bar 1d is close to the rear end face of the barrel 1, and the rear ends of the two groove bodies 1c in the same strip groove 1b are connected. A liquid inlet 1e and a liquid outlet 1f are provided on the outer wall of the barrel 1, and the liquid inlet 1e and the liquid outlet 1f are respectively connected to two groove bodies 1c in the same strip groove 1b.

[0026] When in use, the coolant enters the corresponding groove body 1c from the liquid inlet 1e, flows forward to the annular groove 1a, and then circulates back and forth in the subsequent groove body 1c and is finally discharged through the liquid outlet 1f.

[0027] With the cooperation of the strip groove 1b, the annular groove 1a and the spacer 1d, the cooling water circulates along the axial direction of the barrel 1, thereby greatly increasing the contact area between the cooling water and the side wall of the barrel 1, greatly improving the heat dissipation speed and efficiency of the casing, and thus improving the life of the motor and working stability.

[0028] In this embodiment,

[0029] The barrel 1 is an integrated structure, and the barrel 1 is preferably a cast integrated part. Specifically, the barrel 1 includes a cylindrical body 1g and a circle of strip blocks 1h formed on the outer wall of the cylindrical body 1g, and the front end face and the rear end face of the strip block 1h are flush with the front end face and the rear end face of the cylindrical body 1g respectively. A circle of strip blocks 1h are evenly spaced along the circumference of the cylindrical body 1g, and each strip block 1h is formed with the above-mentioned strip groove 1b. There is a gap between two adjacent strip blocks 1h, which is conducive to the heat dissipation of the strip blocks 1h, thereby making the heat dissipation of the casing better. Further explanation, the cross section of the strip block 1h is an arc shape coaxial with the barrel 1 to enhance the overall strength of the casing.

[0030] The front end cover 2, the rear end cover 3 and the barrel 1 are connected in the following manner: the front end cover 2 and the rear end cover 3 are fixedly connected by a circle of bolts, and the length of the bolts extends axially along the barrel 1. The barrel 1 is axially penetrated with a through hole 1i for the bolt rod to pass through. The through holes 1i are the same in number as the bolts and their positions correspond one to one, which has the advantages of simple structure and convenient assembly.

[0031] In the actual product, the number of strip blocks 1h is 4; the outer wall of the barrel 1 extends outward from the liquid inlet 1e and the liquid outlet 1f to form a liquid inlet ring and a liquid outlet ring, respectively, to facilitate the connection between the housing and the water supply equipment. Preferably, both the liquid inlet ring and the liquid outlet ring are provided with internal threads.

[0032] In the above-mentioned servo motor housing structure, the specific embodiments described in this article are only used as examples to illustrate the spirit of the utility model. Those skilled in the art of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A servo motor housing structure, comprising a front cover (2) and a rear cover (3) which are fixedly connected to each other, and a barrel (1) which is clamped and positioned between the front cover (2) and the rear cover (3), and the barrel (1) is cylindrical, characterized in that: The front end surface of the barrel (1) is provided with an annular groove (1a) coaxial with the barrel (1), and the front end cover (2) closes the notch of the annular groove (1a); a strip groove (1b) having a circular arc cross section axially penetrates the bottom wall of the annular groove (1a), and there are a plurality of strip grooves (1b) uniformly distributed along the circumference of the barrel (1); a partition bar (1d) is formed in the strip groove (1b) to divide the strip groove (1b) into two groove bodies (1c) distributed along the circumference of the barrel (1), and the partition bar (1d) is provided in the strip groove (1b). The front end of the strip (1d) extends to the front end surface of the barrel (1) to separate the front ends of the two groove bodies (1c) in the same strip groove (1b); the rear end of the strip (1d) is close to the rear end surface of the barrel (1), and the rear ends of the two groove bodies (1c) in the same strip groove (1b) are connected; a liquid inlet (1e) and a liquid outlet (1f) are provided on the outer wall of the barrel (1), and the liquid inlet (1e) and the liquid outlet (1f) are respectively connected to the two groove bodies (1c) in the same strip groove (1b).

2. The servo motor housing structure according to claim 1, characterized in that: The barrel (1) comprises a cylindrical body (1g) and a circle of strip blocks (1h) formed on the outer wall of the cylindrical body (1g), the end faces of the strip blocks (1h) and the cylindrical body (1g) are arranged flush, the circle of strip blocks (1h) are evenly spaced along the circumference of the cylindrical body (1g), and each strip block (1h) has one of the above-mentioned strip grooves (1b) formed therein.

3. The servo motor housing structure according to claim 2, characterized in that: The cross section of the strip block (1h) is in the shape of an arc coaxial with the barrel (1).

4. The servo motor housing structure according to claim 1, 2 or 3, characterized in that: The barrel (1) is an integrated structure.

5. The servo motor housing structure according to claim 4, characterized in that: The barrel (1) is a cast one-piece part.

6. The servo motor housing structure according to claim 1, characterized in that: The outer wall of the barrel (1) extends outward from the positions of the liquid inlet (1e) and the liquid outlet (1f) to form a liquid inlet ring and a liquid outlet ring respectively.

7. The servo motor housing structure according to claim 1, characterized in that: The front end cover (2) and the rear end cover (3) are fixedly connected by a circle of bolts, and the length of the bolts extends along the axial direction of the barrel (1). The barrel (1) is axially penetrated by a through hole (1i) for the bolt rod to pass through, and the through holes (1i) are the same in number as the bolts and have a one-to-one corresponding position.

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