Long-life multipurpose electric cylinder

Abstract

This utility model discloses a long-life, multi-purpose electric cylinder, relating to the field of electric cylinder technology. The utility model includes a housing, a threaded transmission assembly, a power screw, and a spindle. The threaded transmission assembly is disposed within the housing and includes a piston and a ball bearing. The ball bearing is threadedly connected to the power screw, and when the power screw rotates, it drives the ball bearing to move in the X-axis direction. A stabilizing mechanism includes a key, a rotating ring, and a stabilizing ring. The key is connected to the power screw, and the rotating ring rotates within the stabilizing ring in a direction perpendicular to the X-axis. This utility model eliminates the need for wear-resistant strips connected to the stabilizing ring to rub against the inner wall of the spindle, reducing the need for frequent replacement of wear-resistant strips and preventing frictional damage to the inner wall of the spindle. This increases the service life of the electric cylinder, is adaptable to various electric cylinder applications, reduces maintenance costs and waste, and makes it easier to observe the wear and replacement of the slide bars.

Description

Technical Field

[0001] This utility model relates to the field of electric cylinder technology, specifically to a long-life, multi-purpose electric cylinder. Background Technology

[0002] A servo electric cylinder is an actuator that converts the rotary motion of a servo motor into linear motion. During operation, the servo electric cylinder has a stable speed and uniform output force, and can replace traditional hydraulic cylinders and pneumatic cylinders, reducing problems such as hydraulic oil leakage and unstable air pressure.

[0003] Servo electric cylinders can be installed vertically or horizontally to perform lifting, pressing, pushing and pulling of objects. However, after prolonged linear motion, existing electric cylinders suffer from reduced accuracy and shortened service life because the power lead screw lacks a stabilizing mechanism or requires wear-resistant strips to rub against the inner wall of the spindle.

[0004] In addition, the connectors on common electric cylinders are designed as a single piece. When the connector is damaged or multiple types of connectors are used in multiple applications, all connector components need to be replaced. This results in a limited application range for a single model of electric cylinder, as well as unnecessary cost increases and waste during repairs. Therefore, a long-life, multi-purpose electric cylinder is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of existing electric cylinders, which, after prolonged linear motion, suffer from reduced accuracy and shortened service life due to the lack of a stabilizing mechanism on the power lead screw or the need for wear-resistant strips to rub against the inner wall of the spindle. Furthermore, the integrated design of the connectors on the electric cylinder necessitates replacing all connector components when damaged or used in multiple applications, limiting the application scenarios of a single model of electric cylinder and causing unnecessary cost increases and waste during repairs. This utility model provides a long-life, multi-purpose electric cylinder.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A long-life, multi-purpose electric cylinder includes a housing, a threaded transmission assembly, a power screw, and a spindle. The threaded transmission assembly is disposed within the housing and includes a piston and a ball bearing. The ball bearing is threadedly connected to the power screw, and when the power screw rotates, it drives the ball bearing to displace in the X-axis direction. The ball bearing and the spindle are mounted on the inner wall of the piston. A stabilizing mechanism includes a key, a rotating ring, and a stabilizing ring. The key is connected to the power screw, and the end of the key away from the power screw is connected to the rotating ring. The rotating ring rotates within the stabilizing ring in a direction perpendicular to the X-axis. The stabilizing ring is connected to at least two telescopic rods, and the ends of the two telescopic rods away from the stabilizing ring are connected to a first mounting plate.

[0008] Furthermore, at least two limiting rings are connected to the inner wall of the stabilizing ring, wherein the distance between the inner walls of the two limiting rings is less than the distance between the outer walls of the rings.

[0009] Furthermore, it also includes a disassembly and assembly mechanism, which includes at least two embedded blocks and at least two rotating knobs. A rotating hole is opened on the surface of the center of the first mounting plate, and at least two rotating knobs are disposed in the rotating hole. The two embedded blocks abut against the outer surface of the two rotating knobs, causing the two rotating knobs to rotate clockwise or counterclockwise in the rotating hole.

[0010] Furthermore, a fitting plate is connected to the side of the first mounting plate away from the telescopic rod, and the fitting plate slides and / or abuts against the outer surface of one of the embedded blocks.

[0011] Furthermore, the distance between the side of the fitting plate away from the first mounting plate and the rotating hole is less than the distance between the side of the fitting plate closer to the first mounting plate and the rotating hole.

[0012] Furthermore, a second mounting plate is fixedly connected to the side of one of the two embedded blocks away from the first mounting plate, and a connector is fixedly connected to the side of the second mounting plate away from the embedded blocks.

[0013] Furthermore, the outer walls of the first mounting plate and the second mounting plate are threadedly connected to the inner wall of the mandrel.

[0014] Furthermore, it also includes a sealing cap and a linear sliding assembly. The sealing cap covers an opening on one side of the housing and is sleeved on the mandrel. The linear sliding assembly includes a slide bar and a linear groove. The slide bar is connected to the inner wall of the sealing cap, and the linear groove is formed on the outer surface of the mandrel. The slide bar slides on the inner wall of the linear groove.

[0015] Furthermore, the embedded block is fan-shaped.

[0016] Furthermore, the radius of the embedded block is smaller than the radius of the first mounting disk.

[0017] The beneficial effects of this utility model are as follows: By setting a stabilizing mechanism, this utility model eliminates the need for wear-resistant strips connected to the stabilizing ring to rub against the inner wall of the spindle, thus avoiding frequent replacement of the wear-resistant strips and preventing friction damage to the inner wall of the spindle, thereby increasing the service life of the electric cylinder. In addition, the use of a disassembly and assembly mechanism allows for convenient installation of connectors for various purposes, adapting to multiple electric cylinder application scenarios and reducing the increase in cost and waste during repair and replacement. Furthermore, the sliding strip is set on the sealing cover, making it easier to observe the wear of the sliding strip and when to replace it. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A in the diagram;

[0020] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;

[0021] Figure 4 This is an exploded structural diagram of the stabilizing mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the embedded block of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the linear slide groove of this utility model;

[0024] Figure 7 This is a partial cross-sectional structural schematic diagram of another embodiment of the present invention.

[0025] Reference numerals: 1. Housing; 2. Threaded transmission assembly; 21. Piston; 22. Ball bearing disc; 3. Lead screw; 4. Spindle; 5. Sealing cover; 6. Stabilizing mechanism; 61. Protruding key; 62. Rotating ring; 63. Stabilizing ring; 64. Telescopic rod; 65. Limiting ring; 66. First mounting plate; 7. Disassembly and assembly mechanism; 71. Embedded block; 72. Rotating knob; 73. Fitting plate; 74. Second mounting plate; 8. Linear sliding assembly; 81. Slide bar; 82. Linear slide groove; 9. Connector. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] A long-life, multi-purpose electric cylinder includes a housing 1, a threaded transmission assembly 2, a power screw 3, and a spindle 4. The threaded transmission assembly 2 is disposed inside the housing 1 and includes a piston 21 and a ball bearing 22. The ball bearing 22 is threadedly connected to the power screw 3, and the rotation of the power screw 3 drives the ball bearing 22 to move in the X-axis direction. The ball bearing 22 and the spindle 4 are mounted on the inner wall of the piston 21. A stabilizing mechanism 6 includes a key 61, a rotating ring 62, and a stabilizing ring 63. The key 61 is connected to the power screw 3, and the end of the key 61 away from the power screw 3 is connected to the rotating ring 62. The rotating ring 62 rotates within the stabilizing ring 63 in a direction perpendicular to the X-axis. The stabilizing ring 63 is connected to at least two telescopic rods 64, and the ends of the two telescopic rods 64 away from the stabilizing ring 63 are connected to a first mounting plate 66.

[0031] like Figure 4As shown, at least two limiting rings 65 are connected to the inner wall of the stabilizing ring 63. The distance between the inner walls of the two limiting rings 65 is smaller than the distance between the outer walls. The limiting rings 65 move inward to prevent the power screw 3 from dislodging when rotating the rotating ring 62 inside the stabilizing ring 63. Furthermore, because the limiting rings 65 move inward, the connection between the power screw 3 and the rotating ring 62 becomes thinner, which can prevent friction while preventing the rotating ring 62 from dislodging from the stabilizing ring 63.

[0032] like Figure 4 As shown, it also includes a disassembly and assembly mechanism 7, which includes at least two embedded blocks 71 and at least two rotating knobs 72. A rotating hole is opened on the surface of the center of the first mounting plate 66, and at least two rotating knobs 72 are disposed in the rotating hole. The two embedded blocks 71 abut against the outer surface of the two rotating knobs 72, driving the two rotating knobs 72 to rotate clockwise or counterclockwise in the rotating hole.

[0033] like Figure 4 As shown, a fitting plate 73 is connected to the side of the first mounting plate 66 away from the telescopic rod 64. The fitting plate 73 slides and / or abuts against the outer surface of one of the embedded blocks 71.

[0034] like Figure 4 and Figure 5 As shown, the distance between the side of the fitting plate 73 furthest from the first mounting plate 66 and the rotating hole is less than the distance between the side of the fitting plate 73 closest to the first mounting plate 66 and the rotating hole. When the insert block 71 drives the rotating knob 72 to rotate to a certain angle, which is between 45 and 270 degrees, the edge of the insert block 71 abuts against the inner wall of the fitting plate 73. At this time, the fitting plate 73 restricts the sliding of the insert block 71, while the rotating knob 72 and the insert block 71 are also affected by... Figure 5 When they are locked together, the movement of the embedded block 71 is completely restricted, resulting in the fixation of the relative positions of the first mounting plate 66 and the second mounting plate 74.

[0035] It should be noted that a recessed hole can also be made on the mating plate 73, and a protrusion can also be connected to the insert block 71. This protrusion can be inserted into the recessed hole, which defines the position of the insert block 71 and the mating plate 73.

[0036] like Figure 4 As shown, a second mounting plate 74 is fixedly connected to the side of the two embedded blocks 71 away from the first mounting plate 66, and a connector 9 is fixedly connected to the side of the second mounting plate 74 away from the embedded blocks 71. The connector 9 includes various types to adapt to various usage scenarios of the connector 9.

[0037] like Figure 3 As shown, the outer walls of the first mounting plate 66 and the second mounting plate 74 are threadedly connected to the inner wall of the spindle 4.

[0038] like Figure 2 As shown, it also includes a sealing cover 5 and a linear sliding assembly 8. The sealing cover 5 covers one side opening of the housing 1 and is sleeved on the spindle 4. The linear sliding assembly 8 includes a slide bar 81 and a linear groove 82. The slide bar 81 is connected to the inner wall of the sealing cover 5, and the linear groove 82 is opened on the outer surface of the spindle 4. The slide bar 81 slides on the inner wall of the linear groove 82. The slide bar 81 is connected to the sealing cover 5. The sliding of the slide bar 81 on the linear groove 82 can make the spindle 4 move in a stable linear motion without deviating. In addition, it is easier to see the wear of the slide bar 81 from the outside and replace the slide bar 81 when necessary. This is easier to observe and maintain than the existing electric cylinder which sets the anti-rotation key with the same function on the piston 21.

[0039] like Figure 5 As shown, the embedded block 71 has a fan-shaped shape.

[0040] like Figure 5 As shown, the radius of the embedded block 71 is smaller than the radius of the first mounting plate 66.

[0041] Example: An external power source drives the lead screw 3 to rotate. When the lead screw 3 rotates, due to the threaded transmission relationship with the ball bearing 22 and the piston 21, the spindle 4 and the threaded transmission assembly 2 are displaced in the X-axis direction. The lead screw 3 drives the key 61 and the rotating ring 62 connected to the key 61 to rotate. The rotating ring 62 is confined within the stabilizing ring 63, and the limiting ring 65 connected to the stabilizing ring 63 prevents the rotating ring 62 from dislodging during rotation. Generally, a wear-resistant strip is connected to the stabilizing ring 63 to rub against the inner wall of the spindle 4 and prevent the stabilizing ring 63 from shaking within the spindle 4. This method is prone to wear after long-term use. Uneven or excessive wear of the wear-resistant strips necessitates disassembling the electric cylinder to replace them, thus shortening their effective service life. Furthermore, prolonged wear on the inner wall of the spindle 4 also reduces its lifespan. Therefore, a telescopic rod 64 is connected to the stabilizing ring 63. The telescopic rod 64 can be extended or shortened when the spindle 4 moves relative to the power screw 3 in the X-axis direction. The telescopic rod 64 is also connected to the first mounting plate 66, which is connected to the second mounting plate 74 via the disassembly and assembly mechanism 7. This method eliminates the need for wear-resistant strips and stabilizes the stabilizing ring 63, ultimately ensuring the stable position of the power screw 3 during rotation without wobbling.

[0042] Another embodiment: such as Figure 7As shown, another feasible solution is to connect the telescopic rod 64 to the power screw 3, and connect the other end of the telescopic rod 64 to the key 61. The key 61 extends into the first mounting plate 66, and the rotating ring 62 is still connected to the key 61. The rotating ring 62 rotates simultaneously with the key 61, the telescopic rod 64 and the power screw 3. At this time, a stabilizing groove is opened in the first mounting plate 66, and the rotating ring 62 rotates in the stabilizing groove. In this way, the rotating ring 62 will not come out no matter how fast or slow it rotates, and the power screw 3 will be stabilized so that it will not wobble when it rotates.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A long-life, multi-purpose electric cylinder, characterized in that: include The assembly comprises a housing (1), a threaded transmission assembly (2), a power screw (3), and a spindle (4). The threaded transmission assembly (2) is disposed inside the housing (1). The threaded transmission assembly (2) includes a piston (21) and a ball disc (22). The ball disc (22) is threadedly connected to the power screw (3), and when the power screw (3) rotates, it drives the ball disc (22) to move in the X-axis direction. The ball disc (22) and the spindle (4) are mounted on the inner wall of the piston (21). A stabilizing mechanism (6) is provided, comprising a key (61), a rotating ring (62), and a stabilizing ring (63). The key (61) is connected to the power screw (3), and the end of the key (61) away from the power screw (3) is connected to the rotating ring (62). The rotating ring (62) rotates within the stabilizing ring (63) in a direction perpendicular to the X-axis. The stabilizing ring (63) is connected to at least two telescopic rods (64), wherein the ends of the two telescopic rods (64) away from the stabilizing ring (63) are connected to a first mounting plate (66).

2. The long-life, multi-purpose electric cylinder according to claim 1, characterized in that, The inner wall of the stabilizing ring (63) is connected to at least two limiting rings (65), wherein the distance between the inner walls of the two limiting rings (65) is less than the distance between the outer walls of the rings.

3. The long-life, multi-purpose electric cylinder according to claim 1, characterized in that, It also includes a disassembly and assembly mechanism (7), which includes at least two embedded blocks (71) and at least two rotating knobs (72). A rotating hole is opened on the surface of the center of the first mounting plate (66), and at least two rotating knobs (72) are arranged in the rotating hole. Two embedded blocks (71) abut against the outer surface of two rotating knobs (72) to drive the two rotating knobs (72) to rotate clockwise or counterclockwise in the rotating hole.

4. The long-life, multi-purpose electric cylinder according to claim 1, characterized in that, The first mounting plate (66) is connected to a fitting plate (73) on the side away from the telescopic rod (64), the fitting plate (73) sliding and / or abutting against the outer surface of one of the embedded blocks (71).

5. The long-life, multi-purpose electric cylinder according to claim 4, characterized in that: The distance between the side of the fitting plate (73) away from the first mounting plate (66) and the rotating hole is less than the distance between the side of the fitting plate (73) closer to the first mounting plate (66) and the rotating hole.

6. The long-life, multi-purpose electric cylinder according to claim 3, characterized in that: Two of the embedded blocks (71) are connected and fixed to a second mounting plate (74) on the side away from the first mounting plate (66), and the second mounting plate (74) is connected and fixed to a connector (9) on the side away from the embedded blocks (71).

7. The long-life, multi-purpose electric cylinder according to claim 6, characterized in that: The outer walls of the first mounting plate (66) and the second mounting plate (74) are threadedly connected to the inner wall of the mandrel (4).

8. The long-life, multi-purpose electric cylinder according to claim 1, characterized in that: It also includes a sealing cover (5) and a linear sliding assembly (8). The sealing cover (5) covers one side opening of the housing (1) and is sleeved on the spindle (4). The linear sliding assembly (8) includes a slide bar (81) and a linear groove (82). The slide bar (81) is connected to the inner wall of the sealing cover (5). The linear groove (82) is opened on the outer surface of the spindle (4). The slide bar (81) slides on the inner wall of the linear groove (82).

9. The long-life, multi-purpose electric cylinder according to claim 3, characterized in that: The embedded block (71) is fan-shaped.

10. The long-life, multi-purpose electric cylinder according to claim 3, characterized in that: The radius of the embedded block (71) is smaller than the radius of the first mounting plate (66).

Images