Flange shaft connecting structure of precision planetary reducer

Abstract

The utility model discloses a precision planetary reducer flanged shaft connecting structure which is arranged between a servo motor and a precision planetary reducer, the servo motor comprises a motor body, a motor output shaft is installed on the front side of the motor body, the front portion and the rear portion of the surface of the motor body are sleeved with a first flange sleeve, and a second flange sleeve is installed on the front portion and the rear portion of the surface of the motor body. The precision planetary reducer comprises a reducer body. Through the arrangement of the connecting cavity, the output shaft of the motor can be inserted into the speed reducer body, the first flange sleeve, the second flange sleeve, the threaded hole, the bolt and the nut are used in cooperation, the servo motor and the precise planetary speed reducer are preliminarily connected, and through the matched use of the sliding groove, the clamping block, the spring and the clamping groove, the precision of the speed reducer is improved. Therefore, the nut is fastened on the surface of the bolt, and the purpose of effectively enhancing the connection between the servo motor and the precision planetary reducer can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of precision planetary reducer flange shaft connection structure, in particular to a precision planetary reducer flange shaft connection structure. Background Art

[0002] Precision planetary reducers have the characteristics of high precision, good rigidity, large load-bearing capacity, high efficiency, long life, low noise, light size, beautiful appearance, easy installation, precise positioning, etc. They are suitable for the speed increase and speed decrease transmission of AC servo motors, DC servo motors, stepper motors, and hydraulic motors.

[0003] The planetary reducer can be directly installed on AC and DC servo motors. It has a coaxial flange output. Flange output means that the motor is connected to the planetary reducer through a flange connection. The motor will vibrate during normal use. Long-term vibration may cause the bolts of the flange connection to loosen, resulting in an unstable connection. Therefore, it is necessary to design a precision planetary reducer flange shaft connection structure. In addition to being threadedly connected to the surface of the bolt, the nut also engages with the motor flange sleeve, which effectively strengthens the connection between the planetary reducer and the motor. Utility Model Content

[0004] The purpose of the utility model is to provide a precision planetary reducer flange shaft connection structure, which adopts a nut that is not only threadedly connected to the surface of the bolt but also engages with the motor flange sleeve, thereby effectively strengthening the connection between the planetary reducer and the motor to solve the problems raised by the above-mentioned background technology.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: a precision planetary reducer flange shaft connection structure, which is arranged between a servo motor and a precision planetary reducer, the servo motor comprises a motor body, a motor output shaft is installed on the front side of the motor body, and a flange sleeve 1 is sleeved on the front and rear sides of the surface of the motor body; the precision planetary reducer comprises a reducer body, a connecting cavity adapted to the motor output shaft is opened on the rear side of the reducer body, a reducer output shaft is installed on the rear side of the reducer body, a flange sleeve 2 is sleeved on the rear side of the surface of the reducer body, and the motor body A flange sleeve 1 is bonded to the front side, and corresponding front and rear threaded holes are provided around the front sides of the flange sleeve 1 and the flange sleeve 2, and bolts are threadedly connected to the inner cavities of the two corresponding front and rear threaded holes, and the surface of the bolt is threadedly connected to a nut that fits tightly with the rear side of the flange sleeve 1; sliding grooves are provided around the front side of the nut, and a card block is slidably connected to the inner cavity of the sliding groove, and a spring is welded to the rear side of the card block, and the output end of the guide telescopic rod is welded to the rear side of the card block, and a plurality of card grooves matching the card block are provided around the rear side of the flange sleeve 1.

[0006] Preferably, an annular groove engaging with the annular member is provided on the rear side of the reducer body.

[0007] Preferably, the surface of the bolt is sleeved with a washer that fits tightly with the front side of the reducer output shaft.

[0008] Preferably, the clamping block is a ball head clamping block.

[0009] Preferably, a guiding telescopic rod is provided in the inner cavity of the spring, a rear end of the guiding telescopic rod is welded to the inner wall of the slide groove, and an output end of the guiding telescopic rod is welded to the rear side of the clamping block.

[0010] Preferably, the plurality of slots are arranged in a ring shape.

[0011] 1. The beneficial effects of the utility model are as follows: the utility model enables the motor output shaft to be inserted into the interior of the reducer body through the setting of the connecting cavity, and the servo motor and the precision planetary reducer are initially connected through the coordinated use of the flange sleeve 1, the flange sleeve 2, the threaded hole, the bolt and the nut. The nut is tightened on the surface of the bolt through the coordinated use of the slide groove, the clamping block, the spring and the clamping groove, thereby achieving the purpose of effectively strengthening the connection between the servo motor and the precision planetary reducer.

[0012] 2. The utility model uses the annular member and the annular groove in combination to limit the connection between the flange sleeve 1 and the flange sleeve 2, thereby facilitating the front and rear threaded holes to be on the same horizontal line, thereby facilitating the installation of bolts and nuts.

[0013] 3. The utility model arranges a plurality of annular slots so that when the nut is completely fitted on the surface of the bolt and the rear side of the flange sleeve, the four clamping blocks can be engaged with any four slots, thereby improving the practicality of the slots. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] in:

[0015] Figure 1 This is a schematic diagram of the main connection surface of an embodiment of the utility model;

[0016] Figure 2 This is a front exploded schematic diagram of an embodiment of the utility model;

[0017] Figure 3 This is a rear exploded schematic diagram of an embodiment of the utility model;

[0018] Figure 4 This is a schematic cross-sectional view of a nut according to an embodiment of the utility model;

[0019] Figure 5 This is an embodiment of the utility model Figure 4A magnified schematic diagram of B;

[0020] Figure 6 This is an embodiment of the utility model Figure 3 A is an enlarged schematic diagram.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Servo motor, 101. Motor body, 102. Motor output shaft, 103. Flange sleeve 1, 2. Precision planetary reducer, 201. Reducer body, 202. Connecting cavity, 203. Reducer output shaft, 204. Flange sleeve 2, 3. Ring part, 4. Ring groove, 5. Threaded hole, 6. Bolt, 7. Nut, 8. Slide, 9. Block, 10. Spring, 11. Guide telescopic rod, 12. Slot. DETAILED DESCRIPTION

[0023] Hereinafter, embodiments of the precision planetary reducer flange shaft connection structure of the present invention will be described with reference to the accompanying drawings.

[0024] Embodiment 1:

[0025] Figure 1-6The present invention shows a precision planetary reducer flange shaft connection structure of an embodiment of the present invention, which is arranged between a servo motor 1 and a precision planetary reducer 2: the servo motor 1 includes a motor body 101, a motor output shaft 102 is installed on the front side of the motor body 101, and a flange sleeve 103 is sleeved on the front and rear of the surface of the motor body 101; the precision planetary reducer 2 includes a reducer body 201, a connecting cavity 202 adapted to the motor output shaft 102 is provided on the rear side of the reducer body 201, a reducer output shaft 203 is installed on the rear side of the reducer body 201, and a flange sleeve 204 is sleeved on the rear side of the surface of the reducer body 201; a flange sleeve 103 is bonded to the front side of the motor body 101, and an annular groove 4 engaged with the annular member 3 is provided on the rear side of the reducer body 201; the ring member 3 and the annular groove 4 are used in coordination, so that the butt joint of the flange sleeve 103 and the flange sleeve 204 is limited, thereby making The front and rear two threaded holes 5 are conveniently located at the same horizontal line, thereby facilitating the installation of the bolts 6 and the nuts 7. The front and rear sides of the flange sleeve 103 and the flange sleeve 204 are provided with corresponding front and rear threaded holes 5. The inner cavities of the two corresponding front and rear threaded holes 5 are threadedly connected with bolts 6. The surface of the bolt 6 is threadedly connected with a nut 7 that fits tightly with the rear side of the flange sleeve 103. The front side of the nut 7 is provided with a slide groove 8. The inner cavity of the slide groove 8 is slidably connected with a clamping block 9. The clamping block 9 is a ball head clamping block. A spring 10 is welded to the rear side of the clamping block 9. The other end of the spring 10 is welded to the inner wall of the slide groove 8. The rear side of the flange sleeve 103 is provided with a plurality of clamping grooves 12 that are compatible with the clamping block 9. The plurality of clamping grooves 12 are arranged in an annular manner. By setting the plurality of annular clamping grooves 12, when the nut 7 is completely fitted with the rear side of the flange sleeve 103 on the surface of the bolt 6, the four clamping blocks 9 can be engaged with any four clamping grooves 12, thereby improving the practicality of the clamping groove 12.

[0026] Embodiment 2:

[0027] Figure 1-6The present invention shows a precision planetary reducer flange shaft connection structure of an embodiment of the present invention, which is arranged between a servo motor 1 and a precision planetary reducer 2: the servo motor 1 includes a motor body 101, a motor output shaft 102 is installed on the front side of the motor body 101, and a flange sleeve 103 is sleeved on the front and rear of the surface of the motor body 101; the precision planetary reducer 2 includes a reducer body 201, a connecting cavity 202 adapted to the motor output shaft 102 is opened on the rear side of the reducer body 201, a reducer output shaft 203 is installed on the rear side of the reducer body 201, a flange sleeve 204 is sleeved on the rear side of the surface of the reducer body 201, a flange sleeve 103 is bonded to the front side of the motor body 101, and four flange sleeves 103 and 204 are sleeved on the front sides. There are front and rear corresponding threaded holes 5 around the periphery, the inner cavities of the two front and rear corresponding threaded holes 5 are threadedly connected with bolts 6, the surface of the bolt 6 is sleeved with a washer that fits tightly with the front side of the reducer output shaft 203, the surface of the bolt 6 is threadedly connected with a nut 7 that fits tightly with the rear side of the flange sleeve 103, and the front side of the nut 7 is provided with a slide groove 8 around the periphery, the inner cavity of the slide groove 8 is slidably connected with a block 9, a spring 10 is welded to the rear side of the block 9, and the other end of the spring 10 is welded to the inner wall of the slide groove 8, and the inner cavity of the spring 10 is provided with a guide telescopic rod 11, the rear end of the guide telescopic rod 11 is welded to the inner wall of the slide groove 8, and the output end of the guide telescopic rod 11 is welded to the rear side of the block 9, and a plurality of slots 12 that match the block 9 are provided around the rear side of the flange sleeve 103.

[0028] Working principle: When using the utility model, the user inserts the precision planetary reducer 2 from the front side of the servo motor 1, so that the motor output shaft 102 enters the inner cavity of the connecting cavity 202, until the ring member 3 enters the inner cavity of the annular groove 4. At this time, the rear side of the flange sleeve 204 is completely fitted with the front side of the flange sleeve 1 103. Then the user inserts the bolt 6 backward from the inner cavity of the front threaded hole 5, so that the rear end of the bolt 6 penetrates to the rear side of the flange sleeve 1 103, and then uses a wrench to turn the nut 7 forward on the surface of the bolt 6. It is noted that when the nut 7 rotates, the block 9 should face the flange sleeve 103. The nut 7 continues to be rotated. When the block 9 is tightly pressed by the rear side of the flange sleeve 103, the block 9 moves backward in the inner cavity of the slide groove 8, and at the same time, the spring 10 and the guide telescopic rod 11 are compressed until the front side of the nut 7 is tightly fitted with the rear side of the flange sleeve 103. Under the action of the rebound force of the spring 10, the four blocks 9 are engaged into the inner cavity of any four slots 12, thereby achieving the purpose of effectively strengthening the connection between the servo motor 1 and the precision planetary reducer 2.

[0029] To sum up: the precision planetary reducer flange-shaft connection structure, through the setting of the connecting cavity 202, allows the motor output shaft 102 to be inserted into the interior of the reducer body 201, and through the coordinated use of flange sleeve 103, flange sleeve 204, threaded hole 5, bolt 6 and nut 7, the servo motor 1 and the precision planetary reducer 2 are initially connected. Through the coordinated use of the slide groove 8, the block 9, the spring 10 and the groove 12, the nut 7 is tightened on the surface of the bolt 6, thereby effectively strengthening the connection between the servo motor 1 and the precision planetary reducer 2.

Claims

1. A precision planetary reducer flange shaft connection structure, characterized in that: The structure is arranged between a servo motor (1) and a precision planetary reducer (2): the servo motor (1) comprises a motor body (101), a motor output shaft (102) is installed on the front side of the motor body (101), and a flange sleeve (103) is sleeved on the front and rear sides of the surface of the motor body (101); the precision planetary reducer (2) comprises a reducer body (201), a connecting cavity (202) adapted to the motor output shaft (102) is opened on the rear side of the reducer body (201), a reducer output shaft (203) is installed on the rear side of the reducer body (201), a flange sleeve (204) is sleeved on the rear side of the surface of the reducer body (201), and a front side of the motor body (101) is bonded to the flange sleeve (205). A flange sleeve (103) is provided, and the front sides of the flange sleeve (103) and the flange sleeve (204) are provided with corresponding front and rear threaded holes (5), the inner cavities of the two corresponding front and rear threaded holes (5) are threadedly connected with bolts (6), and the surface of the bolts (6) is threadedly connected with nuts (7) that are tightly fitted with the rear side of the flange sleeve (103), and the front sides of the nut (7) are provided with sliding grooves (8), and the inner cavity of the sliding groove (8) is slidably connected with a clamping block (9), and a spring (10) is welded to the rear side of the clamping block (9), and the other end of the spring (10) is welded to the inner wall of the sliding groove (8), and the rear side of the flange sleeve (103) is provided with a plurality of clamping grooves (12) that are compatible with the clamping block (9) around.

2. The precision planetary reducer flange shaft connection structure according to claim 1, characterized in that: An annular groove (4) engaged with the annular member (3) is provided on the rear side of the reducer body (201).

3. The precision planetary reducer flange shaft connection structure according to claim 2, characterized in that: The surface of the bolt (6) is sleeved with a washer which fits tightly with the front side of the reducer output shaft (203).

4. The precision planetary reducer flange shaft connection structure according to claim 3, characterized in that: The clamping block (9) is a ball head clamping block.

5. The precision planetary reducer flange shaft connection structure according to claim 4, characterized in that: The inner cavity of the spring (10) is provided with a guide telescopic rod (11), the rear end of the guide telescopic rod (11) is welded to the inner wall of the slide groove (8), and the output end of the guide telescopic rod (11) is welded to the rear side of the clamping block (9).

6. The precision planetary reducer flange shaft connection structure according to claim 5, characterized in that: The plurality of card slots (12) are arranged in a ring shape.

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