Reciprocating type driving sliding block redundant structure
By designing a redundant structure of reciprocating drive slides for mechanical transmission systems, using redundant motors to replace the drive when the main motor fails, the problems of complex redundant design and high cost are solved, and the structure is simple, stable and reliable redundant drive effect.
Patent Information
- Application Number
- CN202411196371.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2024-12-13
AI Technical Summary
The complex redundant design in existing mechanical transmission systems leads to long transmission chains, increasing volume and cost, making it difficult to avoid the problem of single drive failure while ensuring system reliability and safety.
A redundant structure of reciprocating drive slide is designed, connected to the slide through the piston in the cylinder. There are grooves and eccentric shafts on both sides of the slide. The eccentric shaft is installed on the motor output end cover, and the redundant motor is used to Replace the main motor drive slider when the main motor fails, achieving redundant functions without increasing the system size and cost.
It realizes a redundant design with simple structure, stable and reliable operation, ensuring that the main motor fails without affecting normal operation, and provides redundant driving function without increasing system cost and volume.
Smart Images
Figure CN119123018A_ABST
Abstract
Description
1. Technical field The invention belongs to the technical field of redundant design, and in particular relates to a redundant structure of a reciprocating drive slider. (II) Background technology In mechanical transmission systems, the transmission and conversion of power has always been an important research field. Now there are many mechanical transmission devices that can convert rotational motion into reciprocating linear motion. At the same time, with the continuous development of industrial automation, the degree of automation is getting higher and higher. Many important occasions have also put forward higher requirements for the reliability and safety of the device. Some redundant designs are often carried out to avoid the failure of a single drive in an emergency and affect the operation and safety of the entire system. When the application uses a transmission scenario where the motor drives the components to rotate, the redundant design of the system is carried out by adding redundant components. However, the redundant device is more complex and the transmission chain is longer, which increases the volume and cost of the transmission system. (III) Summary of the invention In order to make up for the deficiencies of the prior art, the present invention provides a reciprocating drive slider redundant structure which has simple structure, stable and reliable operation, low cost and small size.
[0004] The present invention is achieved through the following technical solutions: A redundant structure of a reciprocating drive slider comprises a cylinder, a piston is installed in the cylinder, and the top of the piston is connected to the slider. The characteristic is that grooves are respectively provided on both sides of the slider, an upward drive surface is provided on one side of the groove, and a downward drive surface is provided on the other side of the groove, and eccentric shafts are respectively provided in the grooves, and the spacing between the upward drive surface and the downward drive surface is greater than the diameter of the eccentric shaft. The eccentric shaft is installed on the motor output end cover, wherein the motor output end cover on one side is installed on the main motor, and the motor output end cover on the other side is installed on the redundant motor.
[0005] A guide block is arranged outside the sliding block.
[0006] The beneficial effects of the present invention are: when applied to the scene of converting rotary motion into reciprocating linear motion, the redundant motor is designed to drive the slider in a redundant manner, so that the installation of the redundant motor does not affect the normal operation of the main motor, but can timely play a redundant role to replace the main motor to drive the same slider to continue working when the main motor fails. The structure is simple, the operation is stable and reliable, and neither too much system cost nor too much system volume is increased, while also playing a redundant role. (IV) Description of the drawings The present invention will be further described below in conjunction with the accompanying drawings.
[0008] Attached Figure 1 It is a schematic diagram of the main structure of the present invention; Attached Figure 2 It is a schematic diagram of the top view of the structure of the present invention; Attached Figure 3 For attachment Figure 1 A schematic cross-sectional structure diagram of; Attached Figure 4 It is a schematic diagram of the state in which the eccentric shaft of the present invention contacts the downward driving surface; Attached Figure 5 It is a schematic diagram of the state where the eccentric shaft of the present invention leaves the downward driving surface; Attached Figure 6 It is a schematic diagram of the state in which the eccentric shaft of the present invention contacts the upward driving surface; Attached Figure 7 It is a schematic diagram of the state in which the eccentric shaft of the present invention leaves the upward driving surface; Attached Figure 8 It is a schematic diagram of the position state of the eccentric shaft on the redundant motor side when the slider of the present invention reaches the highest point; Attached Fig. 9 It is a schematic diagram of the position state of the eccentric shaft on the redundant motor side when the slider of the present invention reaches the lowest point; Attached Fig.10 It is a schematic diagram of the matching structure of the slider and the eccentric shaft of the present invention; In the figure, 1 is a cylinder, 2 is a piston, 3 is a slider, 4 is a groove, 5 is an upward driving surface, 6 is a downward driving surface, 7 is an eccentric shaft, 8 is a motor output end cover, 9 is a main motor, 10 is a redundant motor, and 11 is a guide block. (V) Specific implementation methods The accompanying drawings show a specific embodiment of the present invention. This embodiment includes a cylinder 1, a piston 2 is installed in the cylinder 1, the top of the piston 2 is connected to a slider 3, grooves 4 are respectively provided on both sides of the slider 3, an upward drive surface 5 is provided on one side of the groove 4, a downward drive surface 6 is provided on the other side of the groove 4, an eccentric shaft 7 is respectively provided in the groove 4, the distance between the upward drive surface 5 and the downward drive surface 6 is greater than the diameter of the eccentric shaft 7, and the eccentric shaft 7 is installed on the motor output end cover 8, wherein the motor output end cover 8 on one side is installed on the main motor 9, and the motor output end cover 8 on the other side is installed on the redundant motor 10. A guide block 11 is provided outside the slider 3.
[0010] The redundant structure of the reciprocating drive slider of the present invention is adopted, and the eccentric shaft 7 is installed on the motor output end cover 8, and there is an eccentric distance with the rotation center of the motor. When the motor rotates, the eccentric shaft 7 rotates around the rotation center with the output end cover of the motor. Through the rotation of the motor, the eccentric shaft 7 can be used to convert the circular motion of the motor into the reciprocating linear motion of the slider 3. The slider 3 is connected to the piston 2, and the piston 2 reciprocates in the cylinder 1 to perform work externally.
[0011] The main motor 9 rotates in the clockwise direction, and when the eccentric shaft 7 contacts the downward driving surface 6, the slider 3 starts to move downward under the push of the eccentric shaft 7, and the eccentric shaft 7 continues to rotate until it disengages from the downward driving surface 6. At this time, the slider 3 reaches the lowest point. When the eccentric shaft 7 continues to rotate until it contacts the upward driving surface 5, the slider 3 starts to move upward under the push of the eccentric shaft 7. When the eccentric shaft 7 rotates until it disengages from the upward driving surface 5, the slider 3 reaches the highest point. At this time, a reciprocating motion cycle of the slider 3 is completed. As the main motor 9 continues to rotate, the slider 3 starts the next cycle.
[0012] The redundant structure of the reciprocating drive slider of the present invention is adopted, grooves 4 are designed on both sides of the slider 3, and a gap width slightly larger than the diameter of the eccentric shaft 7 is reserved between the upward drive surface 5 and the downward drive surface 6, so that the eccentric shaft 7 has an empty process after the driving slider 3 reaches the lowest point or the highest point. At this time, the eccentric shaft 7 will not contact the slider 3, and only when the eccentric shaft 7 continues to rotate will it continue to drive the slider 3 to move in a straight line. The same groove 4 structure is processed on both sides of the slider 3. When the main motor 9 is working, the redundant motor 10 stops, and the eccentric shaft 7 of the redundant motor 10 is always kept at the lowest point. At this time, although the eccentric shaft 7 of the main motor 9 drives the slider 3 to reciprocate up and down, on the redundant motor 10 side, due to the special groove design, the slider 3 does not contact the eccentric shaft 7 of the redundant motor 10 during the up and down movement. When the main motor 9 fails, the power supply of the main motor 9 is cut off and the power supply of the redundant motor 10 is connected, and the redundant motor 10 rotates accordingly, and the eccentric shaft 7 of the redundant motor 10 will drive the slider 3 to continue to move, while the eccentric shaft 7 on the main motor 9 side will be pushed to the lowest point of the disengaged position by the slider 3 and remain motionless.
[0013] The redundant structure of the reciprocating drive slider of the present invention does not add more drive components and does not occupy additional space. The main motor 9 and the redundant motor 10 both act on the same drive slider 3 without affecting each other but can play a role of redundant backup.
Claims
1. A reciprocating drive slider redundant structure, comprising a cylinder (1), a piston (2) installed in the cylinder (1), the top of the piston (2) being connected to a slider (3), wherein: Grooves (4) are respectively provided on both sides of the slider (3), an upward drive surface (5) is provided on one side of the groove (4), and a downward drive surface (6) is provided on the other side of the groove (4), and eccentric shafts (7) are respectively provided in the grooves (4), and the distance between the upward drive surface (5) and the downward drive surface (6) is greater than the diameter of the eccentric shaft (7), and the eccentric shaft (7) is mounted on a motor output end cover (8), wherein the motor output end cover (8) on one side is mounted on a main motor (9), and the motor output end cover (8) on the other side is mounted on a redundant motor (10).
2. The reciprocating drive slider redundant structure according to claim 1 is characterized in that: The sliding block (3) is provided with a guide block (11) outside.