Energy storage electric cylinder

Abstract

The utility model discloses an energy storage electric cylinder which comprises a motor, the output end of the motor is connected with a speed reducer in a bolted mode, the output end of the speed reducer is connected with a coupler in a bolted mode, a brake of the device is in a closed state, and when the brake needs to be opened, the motor is powered up and used for driving the speed reducer to drive a ball screw to rotate through the coupler; then the ball nut is driven to compress the energy storage spring, the ball nut pushes the push rod, energy storage is achieved, after the device arrives at the position, the motor is stopped, braking is conducted, operation is conducted by personnel, after operation is completed, the motor is powered off, the ball nut is reversely pushed through the spring energy stored by the device by means of the non-self-locking function of the ball screw, and after the device retracts to a certain position, the motor is powered off. The brake is under certain pressure, a long-time braking state is achieved, the purpose of normally-closed braking is achieved, and in any state, when power failure occurs, the electric cylinder can automatically return to the normally-closed state of the brake.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric cylinders, and particularly relates to an energy storage electric cylinder. Background Art

[0002] Electric cylinders are designed for continuous motion, low to high loads, and are capable of many cycles over their service life.

[0003] At present, a Chinese utility model with the announcement number CN216981717U discloses an electric cylinder, including a ball screw and an inner tube sleeved outside the ball screw, the inner tube sleeved outside the outer tube, and the ball screw is provided with a first keyway, the first keyway is used to install a reducer, so that the reducer can be installed on the output end of the inner tube and the outer tube. The utility model solves the technical problem that different reducers need to adapt to different inner and outer tube components of electric cylinders, and there are many types of parts during the assembly process, which leads to time-consuming and laborious disassembly and installation, and achieves the technical effect of reducing the parts during the assembly of the reducer and making the disassembly and installation more convenient.

[0004] However, the existing electric cylinder cannot return to the brake normally closed state by itself when power is off. In order to solve the above problem, we provide an energy storage electric cylinder. Utility Model Content

[0005] The purpose of the utility model is to provide an energy storage electric cylinder to solve the problems raised by the above background technology.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an energy storage electric cylinder, including a motor, the output end of the motor is bolted to a reducer, the output end of the reducer is bolted to a coupling, a bearing end is provided on one side of the coupling, a ball screw is rotatably connected inside the bearing end, a ball nut is threadedly connected to the surface of the ball screw, a push rod is bolted to one end of the ball nut, a sleeve is bolted to one side of the bearing end, and an energy storage spring is sleeved on the surface of the ball nut.

[0007] The above technical solution is adopted: the brake of the device is in a closed state. When the brake needs to be opened, the motor is powered on, and the motor drives the reducer to rotate the ball screw through the coupling, and then drives the ball nut to compress the energy storage spring, so that the ball nut pushes the push rod and realizes energy storage. After reaching the position, the motor stops and brakes, and the personnel operate. After the operation is completed, the motor is powered off. The device uses the spring energy stored in itself and the non-self-locking function of the ball screw to push the ball nut back. After the device is retracted to a certain position, the brake is under a certain pressure and a long-term braking state is achieved, thereby achieving the purpose of normally closed braking. In any state, when a power outage occurs, the electric cylinder can return to the normally closed state of the brake by itself.

[0008] The utility model is further configured that a sliding block is arranged on the top of the ball nut, and the bottom of the sliding block is bolted to the ball nut.

[0009] The above technical solution is adopted: by setting a slider, the ball nut can be effectively matched to move stably.

[0010] The utility model is further configured that a sliding groove matched with the sliding block is opened on the top of the energy storage spring, and the interior of the sliding groove is slidably connected with the sliding block.

[0011] By adopting the above technical solution, the slide groove is provided so that the slide block can be effectively used in conjunction with the slide block.

[0012] The utility model is further configured that a limit sensor is bolted to the top of the sleeve.

[0013] By adopting the above technical solution, the travel of the device can be effectively limited by setting a limit sensor.

[0014] The utility model is further configured that an upper cover is arranged on the top of the sleeve, and the bottom of the upper cover is bolted to the sleeve.

[0015] By adopting the above technical solution, the limit sensor can be effectively protected by providing an upper cover.

[0016] The utility model is further configured that a protection tube is bolted to one side of the reducer, and one side of the protection tube is bolted to the bearing end.

[0017] By adopting the above technical solution: the coupling can be effectively protected by providing a protective tube.

[0018] The utility model is further configured that a limiting end head is arranged at one end of the ball screw, and one side of the limiting end head is bolted to the ball screw.

[0019] By adopting the above technical solution, the ball nut can be effectively limited by setting a limiting end.

[0020] The utility model is further configured that a sliding sleeve end is sleeved on the surface of the push rod, and one side of the sliding sleeve end is bolted to the sleeve.

[0021] By adopting the above technical solution, the sliding sleeve end is provided so as to be effectively used in conjunction with the push rod.

[0022] The utility model is further configured that one end of the push rod is provided with a mounting end, and one end of the mounting end is bolted to the push rod.

[0023] By adopting the above technical solution: by setting the installation end, it can be effectively connected and installed with the device.

[0024] The utility model is further configured that one end of the ball screw is bolted to the coupling.

[0025] By adopting the above technical solution, the ball screw can be effectively connected by setting a coupling.

[0026] In summary, the utility model has the following beneficial effects:

[0027] The brake of this device is in a closed state. When the brake needs to be opened, the motor is powered on and the motor drives the reducer to rotate the ball screw through the coupling, and then drives the ball nut to compress the energy storage spring, so that the ball nut pushes the push rod and realizes energy storage. After reaching the position, the motor stops and brakes, and the personnel operate. After the operation is completed, the motor is powered off. The device uses the spring energy stored in itself and the non-self-locking function of the ball screw to push the ball nut back. After the device retracts to a certain position, the brake is under a certain pressure and a long-term braking state is achieved, thereby achieving the purpose of normally closed braking. In any state, when a power outage occurs, the electric cylinder can return to the normally closed state of the brake by itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0029] Figure 2 It is a structural sectional view of the utility model.

[0030] Figure numerals: 1. Motor; 2. Reducer; 3. Coupling; 4. Bearing end; 5. Ball screw; 6. Ball nut; 7. Push rod; 8. Energy storage spring; 9. Slider; 10. Sleeve; 11. Slide groove; 12. Limit sensor; 13. Upper cover; 14. Protective tube; 15. Limit end; 16. Sleeve end; 17. Mounting end. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0032] Embodiment 1:

[0033] refer to Figure 1 and Figure 2, an energy storage electric cylinder, including a motor 1, a reducer 2 is bolted to the output end of the motor 1, a coupling 3 is bolted to the output end of the reducer 2, a bearing end 4 is arranged on one side of the coupling 3, a ball screw 5 is rotatably connected to the inside of the bearing end 4, a ball nut 6 is threadedly connected to the surface of the ball screw 5, a push rod 7 is bolted to one end of the ball nut 6, a sleeve 10 is bolted to one side of the bearing end 4, and an energy storage spring 8 is sleeved on the surface of the ball nut 6. The brake of the device is in a closed state. When the brake needs to be opened, the motor 1 is powered on and the reducer 2 is driven by the motor 1 through the coupling 3. The movable ball screw 5 rotates, and then drives the ball nut 6 to compress the energy storage spring 8, so that the ball nut 6 pushes the push rod 7 and realizes energy storage. After reaching the position, the motor 1 stops and brakes, and the personnel operate. After the operation is completed, the motor 1 is powered off. The device uses the spring energy stored in itself and the non-self-locking function of the ball screw 5 to push the ball nut 6 back. After the device is retracted to a certain position, the brake is under a certain pressure and a long-term braking state is achieved, thereby achieving the purpose of normally closed braking. In any state, when a power outage occurs, the electric cylinder can return to the normally closed state of the brake by itself.

[0034] refer to Figure 1 A slider 9 is provided on the top of the ball nut 6, and the bottom of the slider 9 is bolted to the ball nut 6. By providing the slider 9, the ball nut 6 can be effectively coordinated to move stably.

[0035] refer to Figure 1 A slide groove 11 adapted to the slider 9 is provided on the top of the energy storage spring 8, and the interior of the slide groove 11 is slidably connected to the slider 9. By providing the slide groove 11, the slider 9 can be effectively used.

[0036] refer to Figure 1 A limit sensor 12 is bolted to the top of the sleeve 10. By setting the limit sensor 12, the travel of the device can be effectively limited.

[0037] refer to Figure 1 An upper cover 13 is provided on the top of the sleeve 10 , and the bottom of the upper cover 13 is bolted to the sleeve 10 . By providing the upper cover 13 , the limit sensor 12 can be effectively protected.

[0038] refer to Figure 1 A protective tube 14 is bolted to one side of the reducer 2, and one side of the protective tube 14 is bolted to the bearing end 4. By providing the protective tube 14, the coupling 3 can be effectively protected.

[0039] refer to Figure 1 A limiting end 15 is provided at one end of the ball screw 5 , and one side of the limiting end 15 is bolted to the ball screw 5 . By providing the limiting end 15 , the ball nut 6 can be effectively limited.

[0040] refer to Figure 1 A sliding sleeve end 16 is sleeved on the surface of the push rod 7, and one side of the sliding sleeve end 16 is bolted to the sleeve 10. By providing the sliding sleeve end 16, the push rod 7 can be effectively used.

[0041] refer to Figure 1 One end of the push rod 7 is provided with a mounting end 17, and one end of the mounting end 17 is bolted to the push rod 7. By providing the mounting end 17, it can be effectively connected and installed with the equipment.

[0042] refer to Figure 1 One end of the ball screw 5 is bolted to the coupling 3 , and by providing the coupling 3 , the ball screw 5 can be effectively connected.

[0043] Brief description of the use process: The brake of the device is in a closed state. When the brake needs to be opened, the motor 1 is powered on, and the motor 1 is used to drive the reducer 2 to rotate the ball screw 5 through the coupling 3, and then the ball nut 6 is driven to compress the energy storage spring 8, so that the ball nut 6 pushes the push rod 7 and realizes energy storage. After reaching the position, the motor 1 stops and brakes, and the personnel operate. After the operation is completed, the motor 1 is powered off. The device uses the spring energy stored in itself and the non-self-locking function of the ball screw 5 to push the ball nut 6 back. After the device is retracted to a certain position, the brake is under a certain pressure and a long-term braking state is achieved, thereby achieving the purpose of normally closed braking. In any state, when a power outage occurs, the electric cylinder can return to the normally closed state of the brake by itself.

[0044] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An energy storage electric cylinder, comprising a motor (1), characterized in that: The output end of the motor (1) is bolted to a reducer (2), the output end of the reducer (2) is bolted to a coupling (3), one side of the coupling (3) is provided with a bearing end (4), the interior of the bearing end (4) is rotatably connected to a ball screw (5), the surface of the ball screw (5) is threadedly connected to a ball nut (6), one end of the ball nut (6) is bolted to a push rod (7), one side of the bearing end (4) is bolted to a sleeve (10), and the surface of the ball nut (6) is sleeved with an energy storage spring (8).

2. The energy storage electric cylinder according to claim 1, characterized in that: A sliding block (9) is arranged on the top of the ball nut (6), and the bottom of the sliding block (9) is bolted to the ball nut (6).

3. The energy storage electric cylinder according to claim 2, characterized in that: A sliding groove (11) adapted to the sliding block (9) is provided on the top of the energy storage spring (8), and the interior of the sliding groove (11) is slidably connected to the sliding block (9).

4. The energy storage electric cylinder according to claim 1, characterized in that: A limit sensor (12) is bolted to the top of the casing (10).

5. The energy storage electric cylinder according to claim 1, characterized in that: An upper cover (13) is arranged on the top of the sleeve (10), and the bottom of the upper cover (13) is bolted to the sleeve (10).

6. The energy storage electric cylinder according to claim 1, characterized in that: A protective tube (14) is bolted to one side of the reducer (2), and one side of the protective tube (14) is bolted to the bearing end (4).

7. The energy storage electric cylinder according to claim 1, characterized in that: A limiting end (15) is provided at one end of the ball screw (5), and one side of the limiting end (15) is bolted to the ball screw (5).

8. The energy storage electric cylinder according to claim 1, characterized in that: A sliding sleeve end (16) is sleeved on the surface of the push rod (7), and one side of the sliding sleeve end (16) is bolted to the sleeve (10).

9. The energy storage electric cylinder according to claim 1, characterized in that: One end of the push rod (7) is provided with a mounting end (17), and one end of the mounting end (17) is bolted to the push rod (7).

10. The energy storage electric cylinder according to claim 1, characterized in that: One end of the ball screw (5) is bolted to the coupling (3).

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