Electric cylinder with buffer structure
By designing a buffer mechanism in the electric cylinder, the problem of the electric cylinder collide with the cylinder block when the piston rod is out of control is solved, and effective buffering of the electric cylinder is achieved and damage is avoided.
Patent Information
- Application Number
- CN202421100723.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-20
AI Technical Summary
Existing electric cylinders are prone to collision with the cylinder block when the piston rod is out of control, resulting in damage.
An electric cylinder with a buffer structure is designed, and a buffer mechanism is adopted, including a buffer plate, a buffer spring, a push rod, a transverse plate, a contact plate and a return spring. Through the cooperation of these components, the impact force of the limit rod is reduced and the resistance is increased to achieve buffering of the electric cylinder.
It effectively prevents the collision between the piston rod and the cylinder block when the electric cylinder is out of control, avoids damage to the electric cylinder, and is very practical.
Smart Images
Figure CN222563639U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric cylinders, in particular to an electric cylinder with a buffer structure. Background Art
[0002] Electric cylinders are products designed specifically for continuous motion, low to high loads (usually high speeds), and can be cycled many times over their service life. These products have extremely high positioning accuracy and controllability, and can achieve precise motion control under loads of several kilograms.
[0003] The electric cylinder in the prior art lacks a buffering function. In actual use, when the piston rod loses control, the piston rod falls back quickly under the action of gravity and is easy to collide with the cylinder body of the electric cylinder, causing damage to the electric cylinder. Therefore, we propose an electric cylinder with a buffer structure to solve the above-mentioned problem. Utility Model Content
[0004] The utility model aims to solve the shortcomings of the prior art that when the piston rod is out of control during actual use, the piston rod falls back quickly under the action of gravity and easily collides with the cylinder body of the electric cylinder, thereby causing damage to the electric cylinder, and proposes an electric cylinder with a buffer structure.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] An electric cylinder with a buffer structure, comprising
[0007] Mounting plate;
[0008] An electric cylinder, a top plate, a limit rod and a buffer box, wherein the electric cylinder is fixedly connected to the top of the mounting plate, the top plate is fixedly connected to the top of the electric cylinder, the limit rods and the buffer box are both two in number, the two limit rods are symmetrically fixedly connected to the bottom of the top plate, and the two buffer boxes are symmetrically fixedly connected to the top of the mounting plate;
[0009] The buffer mechanism is movably connected to the limit rod, and the buffer mechanism is used for buffering the electric cylinder.
[0010] As a preferred solution of the utility model, the buffer mechanism includes: two buffer plates, two buffer springs, two push rods, two transverse plates, two contact plates and two return springs;
[0011] The two buffer plates are slidably connected to the inner walls of the corresponding buffer boxes, the two buffer springs are fixedly connected to the bottom inner walls of the corresponding buffer boxes, the tops of the two buffer springs are fixedly connected to the bottoms of the corresponding buffer plates, the two push rods are rotatably connected to the rear sides of the corresponding buffer plates, the two cross plates are slidably connected to the bottom inner walls of the corresponding buffer boxes, the front sides of the two cross plates are rotatably connected to the rear sides of the corresponding push rods, the two contact plates are fixedly connected to the tops of the corresponding cross plates, the two return springs are fixedly connected to the inner walls of the corresponding buffer boxes, and the sides of the two return springs that are away from each other are respectively fixedly connected to the sides of the two cross plates that are close to each other.
[0012] As a preferred solution of the utility model, the left and right sides of the electric cylinder are fixedly connected with limit sleeves, and the inner walls of the two limit sleeves are slidably connected to the outer walls of the corresponding limit rods.
[0013] As a preferred solution of the utility model, the tops of the two buffer boxes are both provided with through holes, the number of the through holes is two, and the two through holes are adapted to the corresponding limiting rods.
[0014] As a preferred solution of the utility model, the inner walls of the two buffer boxes are symmetrically provided with sliding grooves, and the number of the sliding grooves is four, and the left and right sides of the buffer plate are slidably connected to the inner walls of the corresponding sliding grooves.
[0015] As a preferred solution of the utility model, the inner walls of the two buffer boxes are fixedly connected with guide rods, and the number of the guide rods is two, and the two guide rods penetrate the corresponding horizontal plates.
[0016] As a preferred solution of the utility model, the bottom of the limit rod and the top of the buffer plate are both fixedly connected with rubber pads, and the number of the rubber pads is four.
[0017] As a preferred solution of the utility model, a silicone anti-skid pad is fixedly connected to one side of the two contact plates close to each other.
[0018] Beneficial effects:
[0019] 1. The top plate can be easily moved by the movement of the electric cylinder, and the limit rod can be easily moved by the movement of the top plate. The electric cylinder can be easily buffered by the buffer mechanism;
[0020] 2. The limit rod moves and contacts the top of the buffer plate, thereby pushing the buffer plate downward. When the buffer plate moves downward, the buffer spring is compressed. The cooperation between the buffer spring and the buffer plate reduces the impact force of part of the limit rod. At the same time, when the buffer plate moves downward, it pushes the push rod. When the push rod moves, it pushes the cross plate to move horizontally. At this time, the two cross plates move toward each other. When the cross plate moves, it drives the contact plate to move. The contact plate moves horizontally and contacts the side of the limit rod, thereby increasing the friction force when the limit rod moves, thereby increasing the resistance when the limit rod and the electric cylinder move, so as to reduce the impact force of the limit rod, thereby buffering the electric cylinder;
[0021] The utility model achieves the effect of buffering the electric cylinder through a simple structure, prevents the piston rod from colliding with the cylinder body of the electric cylinder when the electric cylinder is out of control, avoids damage to the electric cylinder, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is the front view of the utility model;
[0023] Figure 2 This is a front cross-sectional view of the utility model;
[0024] Figure 3 This is a front cross-sectional view of the buffer box of the utility model;
[0025] Figure 4 It is a three-dimensional diagram of the buffer plate, push rod, cross plate and contact plate of the utility model.
[0026] In the figure: 1. mounting plate; 2. electric cylinder; 3. top plate; 4. limit rod; 5. limit sleeve; 6. buffer box; 7. buffer plate; 8. buffer spring; 9. push rod; 10. cross plate; 11. contact plate; 12. reset spring. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0028] Example
[0029] Reference Figure 1-Figure 4 , an electric cylinder with a buffer structure, comprising
[0030] Mounting plate 1;
[0031] The electric cylinder 2, the top plate 3, the limit rod 4 and the buffer box 6, the electric cylinder 2 is fixedly connected to the top of the mounting plate 1, the top plate 3 is fixedly connected to the top of the electric cylinder 2, the limit rod 4 and the buffer box 6 are both two in number, the two limit rods 4 are symmetrically fixedly connected to the bottom of the top plate 3, and the two buffer boxes 6 are symmetrically fixedly connected to the top of the mounting plate 1;
[0032] The buffer mechanism is movably connected to the limit rod 4 , and the buffer mechanism is used to buffer the electric cylinder 2 .
[0033] By means of the above mechanism: the top plate 3 can be easily moved by the movement of the electric cylinder 2, the limit rod 4 can be easily moved by the movement of the top plate 3, and the electric cylinder 2 can be easily buffered by the buffer mechanism.
[0034] As a preferred solution of the utility model, the buffer mechanism includes: two buffer plates 7, two buffer springs 8, two push rods 9, two cross plates 10, two contact plates 11 and two return springs 12; the two buffer plates 7 are slidably connected to the inner wall of the corresponding buffer box 6, the two buffer springs 8 are fixedly connected to the bottom inner wall of the corresponding buffer box 6, the top of the two buffer springs 8 is fixedly connected to the bottom of the corresponding buffer plate 7, the two push rods 9 are rotatably connected to the rear side of the corresponding buffer plate 7, the two cross plates 10 are slidably connected to the bottom inner wall of the corresponding buffer box 6, the front side of the two cross plates 10 is rotatably connected to the rear side of the corresponding push rod 9, the two contact plates 11 are fixedly connected to the top of the corresponding cross plates 10, the two return springs 12 are fixedly connected to the inner wall of the corresponding buffer box 6, and the two The sides of the return springs 12 that are away from each other are fixedly connected to the sides of the two cross plates 10 that are close to each other, and the limit rod 4 moves to contact the top of the buffer plate 7, thereby pushing the buffer plate 7 to move downward. When the buffer plate 7 moves downward, the buffer spring 8 is compressed. The cooperation of the buffer spring 8 and the buffer plate 7 reduces part of the impact force of the limit rod 4. At the same time, when the buffer plate 7 moves downward, it pushes the push rod 9, and when the push rod 9 moves, it pushes the cross plate 10 to move laterally. At this time, the two cross plates 10 move toward the side that is close to each other. When the cross plate 10 moves, it drives the contact plate 11 to move, and the contact plate 11 moves laterally to contact the side of the limit rod 4, thereby increasing the friction force when the limit rod 4 moves, thereby increasing the resistance when the limit rod 4 and the electric cylinder 2 move, so as to reduce the impact force of the limit rod 4, thereby buffering the electric cylinder 2.
[0035] As a preferred solution of the utility model, the left and right sides of the electric cylinder 2 are fixedly connected with limiting sleeves 5, and the inner walls of the two limiting sleeves 5 are slidably connected with the outer walls of the corresponding limiting rods 4. The limiting sleeves 5 are used to conveniently limit the limiting rods 4, so that the limiting rods 4 can move vertically stably.
[0036] As a preferred solution of the utility model, two through holes are provided on the top of the two buffer boxes 6 , and the two through holes are matched with the corresponding limit rods 4 , so that the limit rods 4 can be conveniently inserted into the interior of the buffer box 6 through the through holes.
[0037] As a preferred solution of the utility model, the inner walls of the two buffer boxes 6 are symmetrically provided with sliding grooves, and the number of the sliding grooves is four. The left and right sides of the buffer plate 7 are slidably connected to the inner walls of the corresponding sliding grooves. The sliding grooves are used to conveniently limit the buffer plate 7 so that the buffer plate 7 can move vertically stably.
[0038] As a preferred solution of the utility model, the inner walls of the two buffer boxes 6 are fixedly connected with guide rods, and the number of the guide rods is two. The two guide rods pass through the corresponding cross plates 10. The guide rods are used to conveniently guide the cross plates 10 so that the cross plates 10 can move laterally stably.
[0039] As a preferred solution of the utility model, the bottom of the limit rod 4 and the top of the buffer plate 7 are fixedly connected with rubber pads, and the number of rubber pads is four. Through the cooperation of the rubber pads, the limit rod 4 can be easily buffered, and the top of the buffer plate 7 and the bottom of the limit rod 4 can be prevented from colliding and being damaged.
[0040] As a preferred solution of the utility model, the two contact plates 11 are fixedly connected with a silicone anti-skid pad on one side close to each other, which facilitates contact with the outer wall of the limit rod 4, thereby increasing the resistance to the movement of the limit rod 4 and achieving a buffering effect.
[0041] It should be noted that the specific type of electric cylinder 2 to be used is selected by the relevant technical personnel familiar with the field, and the above electric cylinder 2 and the like are all existing technologies and will not be elaborated in this solution.
[0042] The working principle of the utility model is as follows: in actual use, the electric cylinder 2 is installed in a suitable position through the mounting plate 1, and the top plate 3 is driven to move by the extension and contraction of the electric cylinder 2. When the top plate 3 moves, the limit rod 4 is driven to move. At this time, the limit rod 4 slides on the inner wall of the limit sleeve 5, so that the electric cylinder 2 and the top plate 3 move stably in a straight line. When the electric cylinder 2 loses control and retracts quickly, the electric cylinder 2 contracts and drives the top plate 3 and the limit rod 4 to move downward. The limit rod 4 moves and is inserted into the buffer box 6. When the limit rod 4 moves to the inside of the buffer box 6, the bottom of the limit rod 4 contacts with the top of the buffer plate 7, thereby pushing the buffer plate 7 to move downward. When the push rod 9 moves, the cross plate 10 is pushed to move laterally. At this time, the two cross plates 10 move toward each other. When the cross plate 10 moves, it drives the contact plate 11 to move. The contact plate 11 moves laterally, so that the silicone anti-skid pad contacts the side of the limit rod 4, thereby increasing the friction force of the limit rod 4 when it moves, thereby increasing the resistance of the limit rod 4 and the electric cylinder 2 when they move, so as to reduce the impact force of the limit rod 4 and achieve the effect of buffering the electric cylinder 2.
[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An electric cylinder with a buffer structure, characterized in that: include Mounting plate (1); An electric cylinder (2), a top plate (3), a limit rod (4) and a buffer box (6), wherein the electric cylinder (2) is fixedly connected to the top of the mounting plate (1), the top plate (3) is fixedly connected to the top of the electric cylinder (2), the limit rods (4) and the buffer box (6) are both two in number, the two limit rods (4) are symmetrically fixedly connected to the bottom of the top plate (3), and the two buffer boxes (6) are symmetrically fixedly connected to the top of the mounting plate (1); A buffer mechanism is movably connected to the limit rod (4), and the buffer mechanism is used to buffer the electric cylinder (2).
2. The electric cylinder with a buffer structure according to claim 1, characterized in that: The buffer mechanism comprises: two buffer plates (7), two buffer springs (8), two push rods (9), two transverse plates (10), two contact plates (11) and two return springs (12); The two buffer plates (7) are slidably connected to the inner wall of the corresponding buffer box (6), the two buffer springs (8) are fixedly connected to the bottom inner wall of the corresponding buffer box (6), the tops of the two buffer springs (8) are fixedly connected to the bottom of the corresponding buffer plate (7), the two push rods (9) are rotatably connected to the rear side of the corresponding buffer plate (7), the two transverse plates (10) are slidably connected to the bottom inner wall of the corresponding buffer box (6), the front sides of the two transverse plates (10) are rotatably connected to the rear side of the corresponding push rod (9), the two contact plates (11) are fixedly connected to the top of the corresponding transverse plate (10), the two return springs (12) are fixedly connected to the inner wall of the corresponding buffer box (6), and the sides of the two return springs (12) that are away from each other are respectively fixedly connected to the sides of the two transverse plates (10) that are close to each other.
3. The electric cylinder with a buffer structure according to claim 1, characterized in that: The left and right sides of the electric cylinder (2) are both fixedly connected to limit sleeves (5), and the inner walls of the two limit sleeves (5) are slidably connected to the outer walls of the corresponding limit rods (4).
4. The electric cylinder with a buffer structure according to claim 1, characterized in that: The tops of the two buffer boxes (6) are each provided with two through holes, and the two through holes are matched with the corresponding limiting rods (4).
5. The electric cylinder with a buffer structure according to claim 2, characterized in that: The inner walls of the two buffer boxes (6) are symmetrically provided with sliding grooves, and the number of the sliding grooves is four. The left and right sides of the buffer plate (7) are slidably connected to the inner walls of the corresponding sliding grooves.
6. The electric cylinder with a buffer structure according to claim 2, characterized in that: The inner walls of the two buffer boxes (6) are both fixedly connected with guide rods, and the number of the guide rods is two, and the two guide rods penetrate the corresponding transverse plates (10).
7. The electric cylinder with a buffer structure according to claim 2, characterized in that: The bottom of the limiting rod (4) and the top of the buffer plate (7) are both fixedly connected with rubber pads, and the number of the rubber pads is four.
8. The electric cylinder with a buffer structure according to claim 2, characterized in that: A silicone anti-skid pad is fixedly connected to the sides of the two contact plates (11) that are close to each other.