A motor drive structure for electric screw press

Abstract

The utility model belongs to the field of electric screw press motors, and specifically is an electric screw press motor drive structure, comprising a motor body, wherein the top of the motor body is fixedly connected with a support, and the support is sleeved on the outside of the output end of the motor body; when the motor body is started, the output end of the motor body rotates, and the driving gear is rotatably connected to the shaft sleeve through a conical friction ring, and a pressure butterfly spring presses the friction block to press the driving gear, so that when the output end of the motor body rotates, the driving gear will also rotate accordingly, but when the output end of the motor body rotates forward and reverse, a large impact will be generated during the transition from forward to reverse rotation, so that when the driving gear is subjected to a strong impact, the rotation force will be greater than the downward pressure, and the driving gear will relatively slip and will not rotate with the rotation of the output end of the motor body, thereby achieving the effect of protecting the motor shaft.

Description

Technical Field

[0001] The utility model relates to the field of electric screw press motors, in particular to a driving structure of an electric screw press motor. Background Art

[0002] The electric screw press motor drive structure is a motor used for a dynamic screw press, which is an energy-saving precision forging press equipment. There is no mechanical transmission, the servo motor is directly driven, the transmission efficiency is high, the motor speed is fast, the torque is large, and the energy release is digitally controlled, which can meet various process requirements of forging strikes.

[0003] The traditional motor drive structure is that the drive gear is fixedly connected to the motor shaft through a flat key. In this way, when the machine tool is working, the motor is frequently started in forward and reverse rotations, and the motor shaft will be impacted and broken; therefore, an electric screw press motor drive structure is proposed to address the above problem. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model proposes an electric screw press motor drive structure to solve the problem that the traditional motor drive structure is that the drive gear is fixedly connected to the motor shaft by a flat key, so that the motor shaft will be impacted and broken when the motor is frequently started forward and reversed when the machine tool is working.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes an electric screw press motor drive structure, including a motor body, the top of the motor body is fixedly connected with a support, the support is sleeved on the outside of the output end of the motor body, the output end of the motor body is fixedly sleeved with a shaft sleeve, the outside of the shaft sleeve is provided with a conical friction ring, the outside of the shaft sleeve is sleeved with a driving gear, the driving gear is connected to the shaft sleeve through the conical friction ring, the top of the support is fixedly connected with a rotating bearing, the outside of the output end of the motor body is provided with a butterfly spring seat, the butterfly spring seat is rotatably connected to the support through a rotating bearing, a pressure butterfly spring is provided on the butterfly spring seat, a friction block is provided at the bottom of the pressure butterfly spring, and the friction block is in contact with the top of the driving gear.

[0006] Preferably, a bearing cover is provided on the top of the support, and the inner thread of the bearing cover is connected with a fixing bolt, and the bearing cover is fixedly connected to the support through the fixing bolt.

[0007] Preferably, a pressure cover is provided on the top of the butterfly spring seat, the internal thread of the pressure cover is connected with a screw, and the pressure cover is fixedly connected to the butterfly spring seat through the screw.

[0008] Preferably, the internal thread of the gland is connected with an adjusting bolt, and the adjusting bolt is located on the top of the pressure butterfly spring.

[0009] Preferably, an expansion sleeve is sleeved on the outside of the motor body.

[0010] Preferably, a clamping plate is fixedly connected to the pressure cover, a rotation groove is provided at the bottom of the bearing cover, and the clamping plate fits in the rotation groove.

[0011] The utility model is beneficial in that:

[0012] 1. In the utility model, when the motor body is started, the output end of the motor body rotates, and the driving gear is rotatably connected to the shaft sleeve through the conical friction ring, and the pressure butterfly spring presses the friction block to press the driving gear, so that when the output end of the motor body rotates, the driving gear will also rotate accordingly, but when the output end of the motor body rotates forward and reverse, then a large impact will be generated when the forward and reverse rotation is changed. In this way, when the driving gear is subjected to a strong impact, the rotation force will be greater than the downward pressure, and the driving gear will slip relatively and will not rotate with the rotation of the output end of the motor body, thereby achieving the effect of protecting the motor shaft;

[0013] 2. The utility model sets an adjusting bolt, rotates the adjusting bolt, and through the threaded cooperation between the adjusting bolt and the pressure cover, the adjusting bolt can be moved in the vertical direction, so that the pressure of the bolt on the pressure butterfly spring can be adjusted, thereby adjusting the friction force on the driving gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an enlarged schematic diagram of the structure of A of the utility model;

[0017] Figure 3 It is an enlarged schematic diagram of the structure of point B of the utility model.

[0018] In the figure: 1. fixing bolt; 2. bearing cover; 3. motor body; 4. expansion sleeve; 5. adjusting bolt; 6. butterfly spring seat; 7. pressure cover; 8. pressure butterfly spring; 9. friction block; 10. rotating bearing; 11. shaft sleeve; 12. conical friction ring; 13. driving gear; 14. support. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 3 As shown, an electric screw press motor drive structure includes a motor body 3, a support 14 is fixedly connected to the top of the motor body 3, the support 14 is sleeved on the outside of the output end of the motor body 3, a sleeve 11 is fixedly sleeved on the output end of the motor body 3, a conical friction ring 12 is arranged on the outside of the sleeve 11, a driving gear 13 is sleeved on the outside of the sleeve 11, the driving gear 13 is connected to the sleeve 11 through the conical friction ring 12, a rotating bearing 10 is fixedly connected to the top of the support 14, a butterfly spring seat 6 is arranged on the outside of the output end of the motor body 3, the butterfly spring seat 6 is rotatably connected to the support 14 through the rotating bearing 10, a pressure butterfly spring 8 is arranged on the butterfly spring seat 6, a friction block 9 is arranged at the bottom of the pressure butterfly spring 8, and the friction block 9 is in contact with the top of the driving gear 13;

[0021] During operation, when the motor body 3 is started, the output end of the motor body 3 rotates, and the driving gear 13 is rotatably connected to the shaft sleeve 11 through the conical friction ring 12, and the pressure butterfly spring 8 presses the friction block 9 to press the driving gear 13, so that when the output end of the motor body 3 rotates, the driving gear 13 will also rotate accordingly, but when the output end of the motor body 3 rotates forward and reverse, then a large impact will be generated during the transition between forward and reverse rotation, so when the driving gear 13 is subjected to a strong impact, the rotational force will be greater than the downward pressure, then the driving gear 13 will slip relatively, and will not rotate with the output end of the motor body 3, thereby protecting the motor shaft.

[0022] Furthermore, a bearing cover 2 is provided on the top of the support 14, and a fixing bolt 1 is connected to the inner thread of the bearing cover 2, and the bearing cover 2 is fixedly connected to the support 14 through the fixing bolt 1;

[0023] During operation, the bearing cover 2 can be firmly fixed on the top of the support 14 by means of the provided fixing bolts 1, so that the internal structure of the bearing cover 2 can be effectively fixed.

[0024] Furthermore, a gland 7 is provided on the top of the butterfly spring seat 6, and a screw is connected to the inner thread of the gland 7, and the gland 7 is fixedly connected to the butterfly spring seat 6 by the screw;

[0025] During operation, the gland 7 can be firmly fixed on the butterfly spring seat 6 by means of the provided screws.

[0026] Furthermore, the internal thread of the gland 7 is connected with an adjusting bolt 5, and the adjusting bolt 5 is located on the top of the pressure butterfly spring 8;

[0027] During operation, the adjusting bolt 5 is rotated through the provided adjusting bolt 5, and the adjusting bolt 5 can be moved in the vertical direction through the threaded cooperation between the adjusting bolt 5 and the pressure cover 7, so that the pressure of the bolt 5 on the pressure butterfly spring 8 can be adjusted, thereby adjusting the friction force on the driving gear 13.

[0028] Furthermore, the outside of the motor body 3 is sleeved with an expansion sleeve 4;

[0029] During operation, the expansion sleeve 4 is arranged to facilitate connection with other connecting shafts.

[0030] Furthermore, a clamping plate is fixedly connected to the pressure cover 7, and a rotation groove is provided at the bottom of the bearing cover 2, and the clamping plate fits in the rotation groove;

[0031] During operation, the bearing cover 2 can rotate on the pressure cover 7 like this.

[0032] Working principle: when the motor body 3 is started, the output end of the motor body 3 rotates, and the driving gear 13 is rotatably connected to the shaft sleeve 11 through the conical friction ring 12, and the pressure butterfly spring 8 presses the friction block 9 to press the driving gear 13, so that when the output end of the motor body 3 rotates, the driving gear 13 will also rotate accordingly, but when the output end of the motor body 3 rotates forward and reverse, a large impact will be generated during the transition between forward and reverse rotation. When the driving gear 13 is subjected to a strong impact, the rotation force will be greater than the downward pressure, and the driving gear 13 will slip relatively and will not rotate with the rotation of the output end of the motor body 3, thereby protecting the motor shaft, and rotating the adjusting bolt 5 through the arranged adjusting bolt 5, and through the threaded cooperation between the adjusting bolt 5 and the pressure cover 7, the adjusting bolt 5 can be moved in the vertical direction, so that the pressure of the bolt 5 on the pressure butterfly spring 8 can be adjusted, thereby adjusting the friction force on the driving gear 13.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An electric screw press motor drive structure, characterized in that: The invention comprises a motor body (3), the top of the motor body (3) is fixedly connected with a support (14), the support (14) is sleeved on the outside of the output end of the motor body (3), the output end of the motor body (3) is fixedly sleeved with a shaft sleeve (11), the outside of the shaft sleeve (11) is provided with a conical friction ring (12), the outside of the shaft sleeve (11) is sleeved with a driving gear (13), the driving gear (13) is connected to the shaft sleeve (11) through the conical friction ring (12), the top of the support (14) is fixedly connected with a rotating bearing (10), the outside of the output end of the motor body (3) is provided with a butterfly spring seat (6), the butterfly spring seat (6) is rotatably connected to the support (14) through the rotating bearing (10), a pressure butterfly spring (8) is provided on the butterfly spring seat (6), a friction block (9) is provided at the bottom of the pressure butterfly spring (8), and the friction block (9) is in contact with the top of the driving gear (13).

2. The electric screw press motor drive structure according to claim 1, characterized in that: A bearing cover (2) is arranged on the top of the support (14); a fixing bolt (1) is connected to the inner thread of the bearing cover (2); and the bearing cover (2) is fixedly connected to the support (14) via the fixing bolt (1).

3. The electric screw press motor drive structure according to claim 2, characterized in that: A pressure cover (7) is arranged on the top of the butterfly spring seat (6), and a screw is connected to the inner thread of the pressure cover (7), and the pressure cover (7) is fixedly connected to the butterfly spring seat (6) by the screw.

4. The electric screw press motor drive structure according to claim 3, characterized in that: The internal thread of the gland (7) is connected with an adjusting bolt (5), and the adjusting bolt (5) is located on the top of the pressure butterfly spring (8).

5. The electric screw press motor drive structure according to claim 1, characterized in that: An expansion sleeve (4) is sleeved on the outside of the motor body (3).

6. The electric screw press motor drive structure according to claim 3, characterized in that: A clamping plate is fixedly connected to the pressure cover (7), a rotation groove is provided at the bottom of the bearing cover (2), and the clamping plate fits in the rotation groove.

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