Brushless motor with load induction function

Abstract

The utility model discloses a brushless motor with a load induction function, and relates to the technical field of brushless motors, the brushless motor comprises a body fixedly installed in a box body, the outer wall of one side of the box body is provided with a heat dissipation through hole, a first filter screen is fixedly installed in the heat dissipation through hole, the outer wall of the other side of the box body is provided with two air inlets, and the two air inlets are communicated with the heat dissipation through hole. Second filter screens are fixedly mounted in the two air inlets correspondingly, a mounting plate is arranged in the box body, an exhaust fan is fixedly mounted on the outer wall of one side of the mounting plate, two transverse plates are fixedly mounted on the mounting plate, and the two transverse plates are fixedly connected with the inner wall of the box body; sliding rods are slidably mounted on the two transverse plates correspondingly, and one ends of the two sliding rods extend out of the box body and are slidably connected with the box body. The utility model has the advantages that the dustproof protection is realized, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motors, and particularly relates to a brushless motor with a load sensing function. Background Technique

[0002] A brushless DC motor consists of a motor main body and a driver, and is a typical mechatronic product. Since the brushless DC motor operates in an automatic control mode, it does not need to add a starting winding on the rotor like a synchronous motor starting under heavy load with variable frequency speed regulation, nor will it generate oscillations and loss of steps when the load changes suddenly. Therefore, brushless motors are widely used in industrial products.

[0003] However, the existing brushless motors are directly exposed to the external environment during use, lacking protection and dust prevention functions, resulting in direct adhesion of external dust on the brushless motors, affecting the service life of the brushless motors. Content of the Utility Model

[0004] The purpose of the utility model is to provide a brushless motor with a load sensing function to solve at least any one of the problems mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A brushless motor with a load sensing function, including a main body fixedly installed in a box body. A heat dissipation vent is opened on one outer wall of the box body, and a first filter screen is fixedly installed in the heat dissipation vent. Two air inlets are opened on the other outer wall of the box body, and second filter screens are respectively fixedly installed in the two air inlets. An installation plate is arranged in the box body. An exhaust fan is fixedly installed on one outer wall of the installation plate. Two cross plates are fixedly installed on the installation plate, and both of the two cross plates are fixedly connected with the inner wall of the box body. Slide rods are respectively slidably installed on the two cross plates, and one ends of the two slide rods extend outside the box body and are slidably connected with the box body. Two rotating rods are rotatably installed on the box body. Rotating baffles are respectively fixedly installed at one ends of the two rotating rods. Rotating circular plates are respectively fixedly sleeved on the two rotating rods. Torsion springs are respectively movably sleeved on the two rotating rods, and one ends of the two torsion springs are respectively fixedly connected with the corresponding rotating circular plates. The other ends of the two torsion springs are both fixedly connected with the box body. Pull ropes are respectively wound on the two rotating rods, and one ends of the two pull ropes are respectively fixedly connected with the corresponding slide rods. Limit circular plates are respectively fixedly sleeved on the two slide rods. Compression springs are respectively movably sleeved on the two slide rods, and one ends of the two compression springs are respectively fixedly connected with the corresponding cross plates. One ends of the two compression springs are respectively fixedly connected with the corresponding limit circular plates. Moving baffles are fixedly installed at one ends of the two slide rods.

[0006] Preferably, both the compression spring and the torsion spring are tinned springs.

[0007] Preferably, two guide rods are fixedly installed inside the box body, and the two guide rods are respectively slidably connected to the two pull ropes.

[0008] Preferably, limiting baffles are respectively fixedly installed at one ends of the two rotating rods located inside the box body.

[0009] Preferably, two rotating holes are formed in the box body, rotating bearings are respectively fixedly installed in the two rotating holes, and the two rotating rods respectively penetrate through the two rotating bearings and are respectively fixedly connected to the inner walls of the two rotating bearings.

[0010] Preferably, through holes are respectively formed in the two cross plates, linear bearings are respectively fixedly installed in the two through holes, and the two sliding rods respectively penetrate through the two linear bearings and are respectively slidably connected to the inner walls of the two linear bearings.

[0011] Preferably, a plurality of mounting rods are fixedly installed on the main body, and the plurality of mounting rods are all fixedly connected to the box body.

[0012] The beneficial effects of the present utility model are as follows:

[0013] In the present utility model, when the compression spring is in a stretched state, the rotating baffle blocks the air inlet, and the moving baffle blocks the air outlet, so that when people do not use the device, dust from the outside cannot adhere to the first filter screen and the second filter screen, improving the service life of the first filter screen and the second filter screen. The box body, the first filter screen and the second filter screen form a dust-proof area to protect the main body from dust, so that dust from the outside cannot adhere to the main body and affect the service life of the main body. When the exhaust fan starts to generate strong wind, the moving baffle moves to the right and separates from the box body to expose the air outlet, and at the same time drives the rotating baffle to rotate and be misaligned with the air inlet, so that the air inlet is exposed. At this time, the box body is in a ventilation state. Finally, the exhaust fan accelerates the air flow inside the box body to cool the main body, preventing the temperature of the main body from being too high during operation and affecting the service life of the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a preferred embodiment of a brushless motor with a load sensing function provided by the present utility model;

[0015] Figure 2 is Figure 1 the enlarged schematic view of part A shown in

[0016] Figure 3 is Figure 1 the enlarged schematic view of part B shown in

[0017] Figure 4 A perspective view of the brushless motor with load sensing function provided by the present utility model.

[0018] In the figure: 1, the box body; 2, the body; 3, the horizontal plate; 4, the mounting plate; 5, the first filter screen; 6, the exhaust fan; 8, the sliding rod; 9, the guiding rod; 10, the pulling rope; 11, the second filter screen; 12, the rotating baffle; 13, the rotating rod; 14, the torsion spring; 15, the rotating circular plate; 16, the limiting baffle; 17, the compression spring; 18, the limiting circular plate; 19, the moving baffle. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides as Figures 1-4A brushless motor with a load sensing function is shown, including a body 2 fixedly installed in a box 1. In order to fixedly install the body 2 on the box 1, a number of mounting rods are fixedly installed on the body 2, and the number of mounting rods are all fixedly connected to the box 1. A heat dissipation vent is opened on one outer wall of the box 1, and a first filter screen 5 is fixedly installed in the heat dissipation vent. Two air inlets are opened on the other outer wall of the box 1, and second filter screens 11 are respectively fixedly installed in the two air inlets. When the compression spring 17 is in a stretched state, the rotating baffle 12 blocks the air inlet, and the moving baffle 19 blocks the air outlet, so that when people do not use this device, the dust in the outside world cannot adhere to the first filter screen 5 and the second filter screen 11, improving the service life of the first filter screen 5 and the second filter screen 11. An installation plate 4 is arranged in the box 1, and an exhaust fan 6 is fixedly installed on one outer wall of the installation plate 4. Two cross plates 3 are fixedly installed on the installation plate 4, and the two cross plates 3 are both fixedly connected to the inner wall of the box 1. Slide rods 8 are respectively slidably installed on the two cross plates 3. In order to reduce the friction between the slide rod 8 and the cross plate 3, thereby reducing the wear degree of the slide rod 8 and improving the service life of the slide rod 8, through holes are respectively opened on the two cross plates 3, linear bearings are respectively fixedly installed in the two through holes, the two slide rods 8 respectively penetrate through the two linear bearings and are respectively slidably connected to the inner walls of the two linear bearings, and one ends of the two slide rods 8 both extend outside the box 1 and are slidably connected to the box 1. Two rotating rods 13 are rotatably installed on the box 1. In order to rotatably install the rotating rod 13 on the box 1, two rotating holes are opened on the box 1, rotating bearings are respectively fixedly installed in the two rotating holes, the two rotating rods 13 respectively penetrate through the two rotating bearings and are respectively fixedly connected to the inner walls of the two rotating bearings. Through the bearing, the rotating rod 13 rotates more stably on the box 1. Rotating baffles 12 are respectively fixedly installed at one ends of the two rotating rods 13. Rotating circular plates 15 are respectively fixedly sleeved on the two rotating rods 13. Torsion springs 14 are respectively movably sleeved on the two rotating rods 13, and one ends of the two torsion springs 14 are respectively fixedly connected to the corresponding rotating circular plates 15. The other ends of the two torsion springs 14 are both fixedly connected to the box 1. Pull ropes 10 are respectively wound on the two rotating rods 13, and one ends of the two pull ropes 10 are respectively fixedly connected to the corresponding slide rods 8. Limit circular plates 18 are respectively fixedly sleeved on the two slide rods 8. Compression springs 17 are respectively movably sleeved on the two slide rods 8. In order to improve the service life of the compression spring 17 and the torsion spring 14, the compression spring 17 and the torsion spring 14 are both tinned springs, and one ends of the two compression springs 17 are respectively fixedly connected to the corresponding cross plates 3, and one ends of the two compression springs 17 are respectively fixedly connected to the corresponding limit circular plates 18. A moving baffle 19 is fixedly installed at one end of each of the two slide rods 8.

[0021] In order to guide the pull rope 10, two guide rods 9 are fixedly installed in the box 1, and the two guide rods 9 are respectively slidably connected to the two pull ropes 10.

[0022] To limit the drawstring 10 and ensure that the drawstring 10 is always stably wound around the rotating rod 13, limit baffles 16 are fixedly installed at one end of the two rotating rods 13 located inside the box body 1 respectively.

[0023] The working principle of the brushless motor with load sensing function provided by the present utility model is as follows: In the initial state, the compression spring 17 is in a stretched state, the rotating baffle 12 blocks the air inlet, and the moving baffle 19 blocks the air outlet, so that when people do not use this device, the dust in the outside world cannot contact the first filter screen 5 and the second filter screen 11, and thus will not adhere to the first filter screen 5 and the second filter screen 11, improving the service life of the first filter screen 5 and the second filter screen 11. A dust-proof area is formed by the box body 1, the first filter screen 5 and the second filter screen 11 to protect the main body 2 from dust, so that the dust in the outside world cannot adhere to the main body 2 and affect the service life of the main body 2. When the main body 2 is working, the exhaust fan 6 is started. The exhaust fan 6 starts to generate a strong wind blowing towards the moving baffle 19, causing the moving baffle 19 to move to the right and separate from the box body 1 to expose the air outlet. At the same time, the movement of the moving baffle 19 drives the movement of the sliding rod 8, the movement of the sliding rod 8 drives the movement of the drawstring 10, the movement of the drawstring 10 drives the rotation of the rotating rod 13, and the rotation of the rotating rod 13 drives the rotation of the rotating baffle 12 to be misaligned with the air inlet, so that the air inlet is exposed. At this moment, the box body 1 is in a ventilated state. Finally, the air flow in the box body 1 is accelerated by the exhaust fan 6 to cool the main body 2 and prevent the temperature of the main body 2 from being too high during operation, which affects the service life of the main body 2.

[0024] Compared with the related technology, the brushless motor with load sensing function provided by the present utility model has the following beneficial effects:

[0025] The present utility model provides a brushless motor with load sensing function. When the compression spring 17 is in a stretched state, the rotating baffle 12 blocks the air inlet, and the moving baffle 19 blocks the air outlet, so that when people do not use this device, the dust in the outside world cannot adhere to the first filter screen 5 and the second filter screen 11, improving the service life of the first filter screen 5 and the second filter screen 11. A dust-proof area is formed by the box body 1, the first filter screen 5 and the second filter screen 11 to protect the main body 2 from dust, so that the dust in the outside world cannot adhere to the main body 2 and affect the service life of the main body 2. When the exhaust fan 6 is started to generate a strong wind, the moving baffle 19 moves to the right and separates from the box body 1 to expose the air outlet. At the same time, it drives the rotation of the rotating baffle 12 to be misaligned with the air inlet, so that the air inlet is exposed. At this moment, the box body 1 is in a ventilated state. Finally, the air flow in the box body 1 is accelerated by the exhaust fan 6 to cool the main body 2 and prevent the temperature of the main body 2 from being too high during operation, which affects the service life of the main body 2.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A brushless motor with load sensing function, comprising a body fixedly mounted in a box, characterized in that: A heat dissipation vent is provided on one outer wall of the box body, a first filter is fixedly installed in the heat dissipation vent, two air inlets are provided on the other outer wall of the box body, and second filters are fixedly installed in the two air inlets respectively, a mounting plate is provided in the box body, an exhaust fan is fixedly installed on one outer wall of the mounting plate, two cross plates are fixedly installed on the mounting plate, and the two cross plates are fixedly connected to the inner wall of the box body, sliding rods are respectively slidably installed on the two cross plates, and one end of the two sliding rods extends outside the box body and is slidably connected to the box body, two rotating rods are rotatably installed on the box body, and rotating baffles are respectively fixedly installed on one end of the two rotating rods, and the two rotating baffles are respectively fixedly installed on one end of the two rotating rods. A rotating circular plate is fixedly sleeved on the rod, and a torsion spring is movably sleeved on the two rotating rods, and one end of the two torsion springs is fixedly connected to the corresponding rotating circular plate, and the other ends of the two torsion springs are fixedly connected to the box body, a pull rope is wrapped around the two rotating rods, and one end of the two pull ropes is fixedly connected to the corresponding sliding rods, a limiting circular plate is fixedly sleeved on the two sliding rods, and a compression spring is movably sleeved on the two sliding rods, and one end of the two compression springs is fixedly connected to the corresponding horizontal plate, and one end of the two compression springs is fixedly connected to the corresponding limiting circular plate, and a movable baffle is fixedly installed on one end of the two sliding rods.

2. A brushless motor with load sensing function according to claim 1, characterized in that: The compression spring and the torsion spring are both tin-plated springs.

3. The brushless motor with load sensing function according to claim 1, characterized in that: Two guide rods are fixedly installed in the box body, and the two guide rods are slidably connected to the two pull ropes respectively.

4. The brushless motor with load sensing function according to claim 1, characterized in that: Limit baffles are fixedly installed on one end of the two rotating rods located in the box body.

5. The brushless motor with load sensing function according to claim 1, characterized in that: The box body is provided with two rotating holes, in which rotating bearings are respectively fixedly installed, and the two rotating rods respectively penetrate the two rotating bearings and are respectively fixedly connected to the inner walls of the two rotating bearings.

6. The brushless motor with load sensing function according to claim 1, characterized in that: The two transverse plates are respectively provided with through holes, and linear bearings are respectively fixedly installed in the two through holes. The two sliding rods respectively penetrate the two linear bearings and are respectively slidably connected with the inner walls of the two linear bearings.

7. The brushless motor with load sensing function according to claim 1, characterized in that: A plurality of mounting rods are fixedly mounted on the main body, and the plurality of mounting rods are fixedly connected to the box body.

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