A rotary reducer with a protection device

Abstract

This utility model discloses a rotary reducer with a protection device, relating to the technical field of rotary reducers, including a rotary reducer; a cable is fixedly connected to the side end of the rotary reducer; a fuse is connected to the cable; a fusible wire is fixedly connected inside the fuse; a connecting pipe is connected to the side end of the fuse; and an observation tube is fixedly connected to the side end of the fuse. By installing a fuse on the cable, when the rotary reducer is under high current for a long time due to external load exceeding its bearing capacity, the circuit can be cut off in time by the failure of the fuse, effectively preventing the excessive current from continuously acting on the rotary reducer. This avoids the rotary reducer coil from burning out due to overheating and the commutator from failing due to breakdown caused by high current. Moreover, only the fuse needs to be replaced to restore the equipment to normal use. This not only significantly improves the operational safety and service life of the rotary reducer, but also reduces the equipment maintenance cost and the difficulty of troubleshooting. It is easy to operate and highly practical.

Description

Technical Field

[0001] This utility model relates to the field of rotary speed reducer technology, specifically to a rotary speed reducer with a protection device. Background Technology

[0002] A rotary reducer is a transmission device widely used in engineering machinery, lifting and transportation equipment, metallurgical machinery, solar photovoltaic tracking and other fields. Its main function is to convert the high-speed rotational motion output by the motor into low-speed, high-torque rotary motion to drive the actuator to complete precise rotary actions. It is one of the core components for realizing the rotary function of equipment.

[0003] Existing rotary reducers typically consist of a drive motor, a reduction gear set, an output shaft, and a housing. After receiving a control signal, the drive motor outputs power, which is then reduced and amplified through multiple stages by the reduction gear set. The power is then transmitted to an external actuator via the output shaft. Simultaneously, the start, stop, and positioning of the rotary motion are achieved using the motor's own braking function or an additional braking device.

[0004] In practical applications, when the external load exceeds the rated load range of the motor equipped with the rotary reducer, the motor will automatically increase the current in order to maintain the output torque, thus operating in a high-current state for a long time. Under this state, the motor coil will overheat due to the large amount of heat generated by the excessive current in a short period of time. If this continues for too long, the coil will be burned out directly. At the same time, the excessive current may also break down the commutator inside the motor, causing short circuits between commutator segments or poor contact with the brushes, ultimately causing the motor to fail, seriously affecting the normal operation of the equipment and increasing maintenance costs. Utility Model Content

[0005] The purpose of this utility model is to provide a rotary reducer with a protection device to solve the technical problem in the prior art that when the external load exceeds the rated load range of the motor equipped with the rotary reducer, the motor will automatically increase the current in order to maintain the output torque, and will be in a high current operation state for a long time, which will lead to short circuit between commutator segments or poor contact with brushes, and ultimately cause motor failure.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A rotary reducer with a protection device includes a rotary reducer; a cable is fixedly connected to the side end of the rotary reducer; a fuse is connected to the cable; a fusible wire is fixedly connected inside the fuse; a connecting pipe is connected to the side end of the fuse; an observation tube is fixedly connected to the side end of the fuse; a second connecting ring is fixedly connected to the side end of the observation tube; a first connecting ring is fixedly connected inside the connecting pipe, and the first connecting ring and the second connecting ring are threaded together.

[0008] As a further embodiment of this utility model: a first positioning plate is slidably connected to the side end of the fuse; a second positioning plate is slidably connected above the first positioning plate on the side end of the fuse, and the cable is located between the second positioning plate and the first positioning plate.

[0009] As a further embodiment of this utility model: a positioning rod is fixedly connected to the top of the first positioning plate; a positioning hole is opened inside the second positioning plate, and a positioning rod is inserted into the positioning hole.

[0010] The beneficial effects of this utility model are as follows: By installing a fuse on the cable, when the rotary reducer is in a high-current state for a long time due to external load exceeding its bearing capacity, the circuit can be cut off in time by the failure of the fuse, effectively preventing the excessive current from continuously acting on the rotary reducer. This avoids the rotary reducer coil from burning out due to overheating and the commutator from failing due to breakdown caused by high current. Moreover, the equipment can be restored to normal use simply by replacing the fuse. This not only significantly improves the operational safety and service life of the rotary reducer, but also reduces the equipment maintenance cost and the difficulty of troubleshooting. It is easy to operate and highly practical. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the fuse structure in this utility model;

[0014] Figure 3 This is a schematic diagram of the positioning rod structure in this utility model;

[0015] In the diagram: 1. Rotary reducer; 2. Cable; 3. Fuse; 4. Fuse wire; 5. Connecting pipe; 6. Connecting ring 1; 7. Connecting ring 2; 8. Positioning plate 1; 9. Positioning plate 2; 10. Positioning hole; 11. Positioning rod; 12. Observation tube. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-3As shown, a rotary reducer with a protection device includes a rotary reducer 1; a cable 2 is fixedly connected to the side end of the rotary reducer 1; a fuse 3 is connected to the cable 2; a fuse wire 4 is fixedly connected inside the fuse 3; a connecting pipe 5 is connected to the side end of the fuse 3; an observation pipe 12 is fixedly connected to the side end of the fuse 3; a second connecting ring 7 is fixedly connected to the side end of the observation pipe 12; a first connecting ring 6 is fixedly connected inside the connecting pipe 5, and the first connecting ring 6 and the second connecting ring 7 are threadedly connected.

[0018] During operation, fuse 3 is installed onto cable 2. Connecting pipe 5 and fuse 3 are fixed together via threaded connections using connecting rings 6 and 7. The fuse 4 can be clearly observed through the transparent material of the observation pipe 12. When the customer's controller outputs a large current exceeding the maximum current that the rotary reducer 1 can withstand, the fuse 4 inside fuse 3 will melt, protecting the rotary reducer 1. Replacing fuse 3 restores the normal function of the rotary reducer 1. Fuse 3 is waterproof and dustproof, preventing dust and water from contacting cable 2. By installing fuse 3 on cable 2, it is possible to... When the rotary reducer 1 is under high current for a long time due to external load exceeding its bearing capacity, the circuit is cut off in time by the failure of the fuse 4, which effectively prevents the excessive current from continuing to act on the rotary reducer 1. This avoids the rotary reducer 1 coil from being burned out due to overheating and the commutator from failing due to breakdown caused by high current. Moreover, the equipment can be restored to normal use by simply replacing the fuse 3. This not only significantly improves the operational safety and service life of the rotary reducer 1, but also reduces the equipment maintenance cost and the difficulty of troubleshooting. It is easy to operate and highly practical. The rotary reducer 1 cable 2 fuse 3 has waterproof and dustproof capabilities.

[0019] The fuse 3 is slidably connected to a first positioning plate 8 on its side end; a second positioning plate 9 is slidably connected above the first positioning plate 8 on the side end of the fuse 3, and the cable 2 is located between the second positioning plate 9 and the first positioning plate 8.

[0020] The fuse 3 needs to be fixedly connected to the cable 2 to ensure the electrical connection between the fuse wire 4 and the cable 2. After the fuse 3 is connected to the cable 2, it is clamped onto the cable 2 by the first positioning plate 8 and the second positioning plate 9. At this time, the cable 2 is located between the first positioning plate 8 and the second positioning plate 9. The inner sidewalls of the first positioning plate 8 and the second positioning plate 9 are provided with locking blocks to fix the position of the cable 2.

[0021] The top of the first positioning plate 8 is fixedly connected to a positioning rod 11; the second positioning plate 9 has a positioning hole 10 inside, and the positioning rod 11 is inserted into the positioning hole 10.

[0022] When the first positioning plate 8 and the second positioning plate 9 are connected, the positioning rod 11 is inserted into the positioning hole 10. The positioning rod 11 is then secured inside the second positioning plate 9 through the positioning hole 10. This improves the connection and fixation of the first positioning plate 8 and the second positioning plate 9, as well as the fixation of the cable 2 position by the first positioning plate 8 and the second positioning plate 9. When the fuse 3 is replaced, the operator can forcefully separate the first positioning plate 8 and the second positioning plate 9, thereby disengaging the positioning rod 11 from the positioning hole 10.

[0023] The working principle of this utility model is as follows: During operation, the fuse 3 is installed on the cable 2. The connecting pipe 5 and the fuse 3 are fixed by the threaded connection of the first connecting ring 6 and the second connecting ring 7. The fuse 4 can be clearly observed through the transparent material of the observation pipe 12. When the customer's controller outputs a large current exceeding the maximum current that the rotary reducer 1 can withstand, the fuse 4 inside the fuse 3 will melt, protecting the rotary reducer 1. After replacing the fuse 3, the normal function of the rotary reducer 1 can be restored. By setting the fuse 3 on the cable 2, when the rotary reducer 1 is in a state of high current for a long time due to external load exceeding its bearing capacity, the circuit can be cut off in time by the failure of the fuse 4, effectively preventing the excessive current from continuously acting on the rotary reducer 1. This avoids the rotary reducer 1 coil from burning out due to overheating and the commutator from failing due to breakdown caused by high current. Moreover, only the fuse 3 needs to be replaced to restore the equipment to normal use. This not only significantly improves the operating safety and service life of the rotary reducer 1, but also reduces the equipment's operating costs. The maintenance cost and troubleshooting difficulty are low, the operation is simple and practical; the fuse 3 needs to be fixedly connected to the cable 2 to ensure the electrical connection between the fuse wire 4 and the cable 2. After the fuse 3 is connected to the cable 2, it is clamped onto the cable 2 by the first positioning plate 8 and the second positioning plate 9. At this time, the cable 2 is located between the first positioning plate 8 and the second positioning plate 9. The inner sidewalls of the first positioning plate 8 and the second positioning plate 9 are equipped with locking blocks, which fix the position of the cable 2 by the first positioning plate 8 and the second positioning plate 9; When connecting positioning plate 8 and positioning plate 9, insert positioning rod 11 into the positioning hole 10. Positioning rod 11 is then secured inside positioning plate 9 through positioning hole 10. This improves the connection and stability of positioning plate 8 and positioning plate 9, as well as the stability of positioning plate 8 and positioning plate 9 for cable 2. When replacing fuse 3, the operator can forcefully separate positioning plate 8 and positioning plate 9 to disengage positioning rod 11 from the positioning hole 10.

[0024] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A slewing reduction gear with a protection device, characterized in that Includes a rotary reducer (1); a cable (2) is fixedly connected to the side end of the rotary reducer (1); a fuse (3) is connected to the cable (2); a fuse wire (4) is fixedly connected inside the fuse (3); a connecting pipe (5) is connected to the side end of the fuse (3); an observation pipe (12) is fixedly connected to the side end of the fuse (3); a second connecting ring (7) is fixedly connected to the side end of the observation pipe (12); a first connecting ring (6) is fixedly connected inside the connecting pipe (5), and the first connecting ring (6) and the second connecting ring (7) are threadedly connected.

2. A rotary reducer with a protection device according to claim 1, characterized in that, The fuse (3) is slidably connected to a first positioning plate (8); a second positioning plate (9) is slidably connected above the first positioning plate (8) on the side of the fuse (3), and the cable (2) is located between the second positioning plate (9) and the first positioning plate (8).

3. A rotary reducer with a protection device according to claim 2, characterized in that, The top of the first positioning plate (8) is fixed with a positioning rod (11); the second positioning plate (9) has a positioning hole (10) inside, and the positioning rod (11) is inserted into the positioning hole (10).

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