CN106763630B - Pure mechanical stepless speed regulating device - Google Patents

Abstract

The invention discloses a purely mechanical stepless speed regulating device, which comprises a front cover, a base, a rear cover, a motor base, a motor, a universal coupling, a transmission screw, a screw base, and a first linear guide rail pair , rotating shaft screw, rotating shaft, second linear guide pair, upper supporting plate, compression screw, intermediate supporting plate, auxiliary adjusting screw, auxiliary adjusting screw seat, transmission supporting plate, screw adjusting seat, main adjusting screw, main adjusting nut and The indexing plate, the transmission screw rod and the output shaft of the motor form an included angle α, the moving speed of the screw base is v, the moving speed of the upper supporting plate is v _x , and v _x =v·cosα. The invention has a purely mechanized structure, is convenient for operation and maintenance, and can satisfy large-scale automatic production of non-standard parts.

Description

Pure mechanical stepless speed regulation device

technical field

The invention relates to the technical field of stepless speed regulation equipment, in particular to a purely mechanical stepless speed regulation device.

Background technique

Stepless speed regulation technology is gradually widely used in the fields of mechanical production and processing, automobiles, medical equipment, construction, military industry, and consumer products. The traditional speed control device is mainly based on the transmission ratio of the gear train. The wide application of modern stepless speed regulation is mainly due to the rapid development of power electronics technology, stepping servo motor technology, motor control technology, hydraulic control technology, etc. For example, the CVT gearbox in a car is a classic application of stepless speed regulation. However, the current stepless speed control device still has the following technical defects: it needs to be equipped with a motor driver, a motion control card or PLC, etc., the cost is relatively high, the structure is relatively complicated, the adjustment and maintenance are inconvenient, and the operation is complicated, and the operators need to be trained. It can work on the job; in addition, the current stepless speed regulating device is difficult to apply to the mass-automated production of non-standard parts.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a purely mechanical stepless speed regulating device with a purely mechanized structure, easy operation and maintenance, and can meet the requirements of large-scale automatic production of non-standard parts.

The scheme that the present invention solves the problems of the technologies described above is as follows:

This purely mechanical stepless speed regulating device includes front cover (1), base (2), rear cover (3), motor seat (4), motor (5), universal coupling (10), transmission wire Rod (110), screw nut base (111), first linear guide rail pair (12), rotating shaft screw (13), rotating shaft (14), second linear guide rail pair (15), upper supporting plate (16), Compression screw (17), intermediate support plate (18), auxiliary adjustment screw (19), auxiliary adjustment screw seat (20), transmission support plate (21), screw adjustment seat (22), main adjustment screw (23) , the main adjustment nut (24) and the index plate (25),

The front cover (1) is installed on the front end of the base (2), the back cover (3) is installed on the rear end of the base (2), the motor seat (4) is installed on the outside of the back cover (3), and the motor (5) Connect the universal coupling (10), and the universal coupling (10) is placed in the motor seat (4);

The universal coupling (10) is connected to the transmission screw (110), the transmission screw (110) is located inside the base (2), the screw socket (111) is socketed outside the transmission screw (110), and the transmission The supporting plate (21) can be installed on the top surface of the screw nut base (111) rotatably in the horizontal plane, the first linear guide pair (12) is installed on the top surface of the transmission supporting plate (21), and the intermediate supporting plate (18) Installed on the first linear guide pair (12);

The upper supporting plate (16) and the middle supporting plate (18) are hinged through the rotating shaft (14) and the rotating shaft screw (13), and the upper supporting plate (16) is provided with a first arc-shaped through hole (160), and the compression screw (17) Connect the middle supporting plate (18) through the first arc-shaped through hole (160), the second linear guide pair (15) is fixed on the left and right tops of the base (2), and the upper supporting plate (16) is installed on the On the second linear guide pair (15);

Described auxiliary adjusting screw rod seat (20) is arranged on the side of upper supporting plate (16), auxiliary adjusting screw rod (19) passes through the threaded hole of auxiliary adjusting screw rod seat (20), and the tail end of auxiliary adjusting screw rod (19) is a slide block (191), the side of the middle supporting plate (18) is provided with a slideway (180), and the slide block (191) is slidably connected in the slideway (180);

The end of the transmission screw (110) is fixedly connected to the screw adjusting seat (22), and the lower end of the screw adjusting seat (22) is inserted into the second arc-shaped through hole (20) on the bottom surface of the base (2). The nut (24) is sleeved outside the main adjustment screw rod (23), and the side of the main adjustment nut (24) is provided with a horizontal connection part (240), and the horizontal connection part (240) has a straight line hole (241), The screw rod adjusting seat (22) is provided with a vertical bearing pin (220), and the bearing pin (220) passes through the linear strip hole (241), and the main adjustment screw rod (23) passes through the side of the base (2). The side is provided with an indexing plate (25);

The transmission screw (110) forms an included angle α with the output shaft of the motor (5), the moving speed of the screw base (111) is v, the moving speed of the upper supporting plate (16) is v _x , and v _x =v·cosα.

A dustproof cover (6) is provided at the front and rear of the upper supporting plate (16).

The head end of the main adjustment screw (23) is provided with a main adjustment handwheel (230), and the head end of the auxiliary adjustment screw (19) is provided with an auxiliary adjustment handwheel (190).

Compared with the prior art, the present invention has the following advantages:

The purely mechanical stepless speed regulating device of the present invention: 1. Driven by an ordinary motor, compared with the adjustable speed device driven by a servo stepping motor, the present invention does not need a motor driver, a motion control card or PLC, etc., and can realize simple and fast The transmission speed can be adjusted accurately, greatly reducing the cost, the structure is simple and easy to maintain, and at the same time, it can meet the requirements of many different working speeds. 2. The present invention is very suitable for mass-produced ordinary machinery, with simple operation, convenient adjustment, low price, convenient and fast maintenance, and is more power-saving and environmentally friendly than speed-regulating mechanisms controlled by other drives, power control cards, and PLCs. , More durable, can work without training. 3. The present invention can be widely used in the turning of large batches of standard and non-standard parts (including the production of non-standard threads and standard threads) and the turning of parts with different smoothness in full automation and unattended.

Description of drawings

Fig. 1 is a perspective view of a purely mechanical stepless speed regulating device of the present invention.

Fig. 2 is an exploded view of Fig. 1 .

Fig. 3 is an internal structure diagram of Fig. 1 . (from bottom to top angle)

Fig. 4 is an internal structure diagram of Fig. 1 . (from top to bottom angle)

FIG. 5 is a partial sectional view of FIG. 1 .

FIG. 6 is a schematic diagram of v _x =v·cosα.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

The purely mechanical stepless speed regulating device shown in Figure 1-Figure 5 includes a front cover 1, a base 2, a rear cover 3, a motor base 4, a motor 5, a universal coupling 10, a transmission screw 110, a screw Rod female seat 111, first linear guide pair 12, rotating shaft screw 13, rotating shaft 14, second linear guide pair 15, upper supporting plate 16, compression screw 17, middle supporting plate 18, auxiliary adjusting screw 19, auxiliary adjusting screw Seat 20, transmission supporting plate 21, screw rod adjustment seat 22, main adjustment screw rod 23, main adjustment nut 24 and indexing plate 25,

The front cover 1 is installed on the front end of the base 2, the rear cover 3 is installed on the rear end of the base 2, the motor seat 4 is installed on the outside of the rear cover 3, the motor 5 is connected to the universal coupling 10, and the universal coupling 10 is placed in the motor seat 4;

The universal coupling 10 is connected to the transmission screw 110, the transmission screw 110 is located inside the base 2, the screw female seat 111 is sleeved outside the transmission screw 110, and the transmission supporting plate 21 is installed on the screw female seat so that it can rotate in the horizontal plane 111, the first linear guide rail pair 12 is installed on the top surface of the transmission pallet 21, and the middle pallet 18 is installed on the first linear guide rail pair 12;

The upper supporting plate 16 and the middle supporting plate 18 are hinged through the rotating shaft 14 and the rotating shaft screw 13. The upper supporting plate 16 is provided with a first arc-shaped through hole 160, and the compression screw 17 passes through the first arc-shaped through hole 160 to connect the middle supporting plate. 18. The second linear guide pair 15 is fixed on the left and right tops of the base 2, and the upper supporting plate 16 is installed on the second linear guide pair 15;

The auxiliary adjusting screw seat 20 is arranged on the side of the upper supporting plate 16, the auxiliary adjusting screw 19 passes through the threaded hole of the auxiliary adjusting screw seat 20, the tail end of the auxiliary adjusting screw 19 is a slider 191, and the side of the middle supporting plate 18 is provided with a The slideway 180, the slide block 191 is slidably connected in the slideway 180;

The end of the transmission screw 110 is fixedly connected with the screw adjusting seat 22, the lower end of the screw adjusting seat 22 is inserted into the second arc-shaped through hole 200 on the bottom surface of the base 2, the main adjusting nut 24 is sleeved outside the main adjusting screw 23, The side of the adjusting nut 24 is provided with a horizontal connecting portion 240, and the horizontal connecting portion 240 has a straight line hole 241. The screw adjusting seat 22 is provided with a vertical pin 220, and the pin 220 passes through the straight line hole. 241, the main adjustment screw 23 passes through the side of the base 2, and the side is provided with an indexing plate 25;

The transmission screw 110 forms an angle α with the output shaft of the motor 5, the moving speed of the screw base 111 is v, the moving speed of the upper supporting plate 16 is v _x , and v _x =v cos α, as shown in Figure 6 .

The front and rear of the upper supporting plate 16 are provided with a dust cover 6 .

The head end of the main adjustment screw 23 is provided with a main adjustment handwheel 230 , and the head end of the auxiliary adjustment screw 19 is provided with an auxiliary adjustment handwheel 190 .

The use process of this purely mechanical stepless speed regulating device is as follows:

1. An auxiliary adjustment handwheel 190 is provided at the outer end of the auxiliary adjustment screw 19. According to design requirements, when the auxiliary adjustment handwheel 190 is rotated, the middle support plate 18 will rotate, because the tail end of the auxiliary adjustment screw 19 is a slider 191, and the middle support The side of plate 18 is provided with a slideway 180, and slide block 191 is slidably connected in slideway 180, and slide block 191 realizes the effect of pushing or pulling to intermediate supporting plate 18, and there is gap between slide block 191 and slideway 180 but will not break away. After the adjustment is completed, the compression screw 17 is tightened. At this time, the upper supporting plate 16 and the middle supporting plate 18 are integrated, and the angle of the middle supporting plate 18 will affect the moving speed v _x of the upper supporting plate 16 .

2. The motor 5 is an ordinary motor with a fixed speed. When the motor 5 is turned on, the motor 5 transmits the rotation to the transmission screw 110 through the universal coupling 10, and the screw female seat 111 set on the transmission screw 110 will The rotation of the motor becomes linear motion with a speed of v.

The transmission screw 110 forms an angle α with the output shaft of the motor 5, the moving speed of the screw base 111 is v, the moving speed of the upper supporting plate 16 is v _x , and v _x =v cos α, as shown in Figure 6 .

The outside of the main adjustment screw 23 is provided with a main adjustment handwheel 230. When the main adjustment handwheel 230 is rotated, the main adjustment nut 24 sleeved on the main adjustment screw 23 will move linearly relative to the main adjustment screw 23, and the main adjustment nut 24 is hinged. The screw adjusting seat 22 will slide along the second arc-shaped through hole 200 at the bottom of the base 2, so that the angle α between the drive screw 110 and the output shaft of the motor 5 changes, v _x =v cos α, different The moving speed v _x of the upper pallet 16 .

3. The transmission of v and v _x : the screw base 111 moves (v) → the transmission pallet 21 rotates in the horizontal plane → the middle pallet 18 moves along the first linear guide pair 12 → the upper pallet 16 moves along the second straight line The rail pair 15 moves (v _x ).

The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above content, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are all Replacement methods that should be equivalent are all included within the protection scope of the present invention.

Claims (1)

1. The purely mechanical stepless speed regulating device is characterized in that it includes a front cover (1), a base (2), a rear cover (3), a motor base (4), a motor (5), and a universal coupling ( 10), drive screw (110), screw base (111), first linear guide rail pair (12), rotating shaft screw (13), rotating shaft (14), second linear guide rail pair (15), upper support Plate (16), compression screw (17), intermediate support plate (18), auxiliary adjustment screw (19), auxiliary adjustment screw seat (20), transmission support plate (21), screw adjustment seat (22), main adjusting screw rod (23), main adjusting nut (24) and indexing plate (25), The front cover (1) is installed on the front end of the base (2), the back cover (3) is installed on the rear end of the base (2), the motor seat (4) is installed on the outside of the back cover (3), and the motor (5) Connect the universal coupling (10), and the universal coupling (10) is placed in the motor seat (4); The universal coupling (10) is connected to the transmission screw (110), the transmission screw (110) is located inside the base (2), the screw socket (111) is socketed outside the transmission screw (110), and the transmission The supporting plate (21) can be installed on the top surface of the screw nut base (111) rotatably in the horizontal plane, the first linear guide pair (12) is installed on the top surface of the transmission supporting plate (21), and the intermediate supporting plate (18) Installed on the first linear guide pair (12); The upper supporting plate (16) and the middle supporting plate (18) are hinged through the rotating shaft (14) and the rotating shaft screw (13), and the upper supporting plate (16) is provided with a first arc-shaped through hole (160), and the compression screw (17) Connect the middle supporting plate (18) through the first arc-shaped through hole (160), the second linear guide pair (15) is fixed on the left and right tops of the base (2), and the upper supporting plate (16) is installed on the On the second linear guide pair (15); Described auxiliary adjustment screw seat (20) is fixedly arranged on the side of upper supporting plate (16), auxiliary adjustment screw rod (19) passes through the threaded hole of auxiliary adjustment screw seat (20), and the tail end of auxiliary adjustment screw rod (19) is Slide block (191), the side of middle supporting plate (18) is provided with a slideway (180), and slide block (191) is slidably connected in the slideway (180); The end of described transmission screw rod (110) and wire The rod adjustment seat (22) is fixedly connected, the lower end of the screw rod adjustment seat (22) is inserted into the second arc-shaped through hole on the bottom surface of the base (2), and the main adjustment nut (24) is sleeved outside the main adjustment screw rod (23). The side of the main adjusting nut (24) is provided with a horizontal connecting portion (240), and the horizontal connecting portion (240) has a straight line hole (241), and the screw adjusting seat (22) is provided with a vertical pin (220), the pin shaft (220) passes through the linear strip hole (241), and the main adjustment screw rod (23) passes through the side of the base (2), and the side is provided with an indexing plate (25); The transmission screw (110) forms an included angle α with the output shaft of the motor (5), the moving speed of the screw base (111) is v, the moving speed of the upper supporting plate (16) is v _x , and v _x = v cos α; A dust cover (6) is provided at the front and back of the upper supporting plate (16); The head end of the main adjustment screw (23) is provided with a main adjustment handwheel (230), and the head end of the auxiliary adjustment screw (19) is provided with an auxiliary adjustment handwheel (190).

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