Suspension type low-noise gear motor

Abstract

The utility model discloses a suspension type low-noise gear motor, which relates to the technical field of motors and comprises a motor shell, a front end cover and a rear end cover, the front end cover and the rear end cover are respectively arranged on the front side and the rear side of the motor shell, and a motor body is fixedly arranged on the inner wall of the motor shell. A third cavity, a second cavity and a first cavity are formed in the motor shell, the third cavity, the second cavity and the first cavity are sequentially arranged on the motor shell from inside to outside, and the first cavity and the third cavity are filled with cooling liquid. According to the suspension type low-noise gear motor, cooling liquid in the third cavity and cooling liquid in the first cavity can be mixed with each other, the cooling liquid in the third cavity can continuously absorb heat during operation of the motor body, and therefore the situation that due to arrangement of sound absorption cotton on the motor body, heat dissipation of the motor body is affected is avoided; and the motor body generates high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a suspended low-noise reduction motor. Background Art

[0002] The suspended reducer is a vertical reducer, a three-stage involute cylindrical gear reducer, a three-stage cylindrical gear transmission, mainly for crane matching, can also be used as other reducer devices, the suspended reducer is mainly used for reduction transmission of public mechanical equipment in mining, metallurgy, cement, construction, chemical industry, light industry, etc.

[0003] Patent No.: CN220586090U, discloses a suspended low-noise reduction motor, the rear end cover can be opened by turning the mounting bolt, and then the adjusting screw is rotated by turning the knob, so that the sound-absorbing cotton can be taken out and replaced with a new one. During installation, the two sound-absorbing cottons are rolled into a semicircular arc shape and placed on the inner wall of the protective shell, and fit with the inner wall of the protective shell, which is also convenient for replacing the sound-absorbing cotton. Then, the knob is turned in the opposite direction, so that the rotation of the adjusting screw moves the fixing plate and fixes the sound-absorbing cotton.

[0004] However, during the implementation of this solution, although it is convenient for the device to replace the sound-absorbing cotton, since the sound-absorbing cotton wraps the motor and only relies on the heat dissipation holes on the front cover to dissipate the heat of the motor, the heat dissipation efficiency is low, resulting in continuous accumulation of heat when the motor works for a long time, which in turn causes the temperature of the motor itself to continue to rise, thereby reducing the service life of the device. Therefore, a suspended low-noise reduction motor is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a suspended low-noise reduction motor that can solve the problems of the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a suspended low-noise reduction motor, comprising a motor housing, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are respectively on the front and rear sides of the motor housing, and the front end cover and the rear end cover are connected to the motor housing by screws. The inner wall of the motor housing is fixedly mounted with a motor body, and the output shaft of the motor body passes through the surface of the front end cover and is slidably connected to the interior of the front end cover. A third cavity, a second cavity and a first cavity are provided inside the motor housing, and the third cavity, the second cavity and the first cavity are arranged in sequence from the inside to the outside on the motor housing. Two arc-shaped sound-absorbing cottons are placed on the inner wall of the second cavity, and the interiors of the first cavity and the third cavity are both filled with coolant.

[0007] Preferably, one side of the first cavity is connected to the outside, a movable ring is slidably connected to the inner wall of the first cavity, a fixed sleeve is fixedly connected to the inner wall of the first cavity, a sliding rod is slidably connected to the inner wall of the fixed sleeve, an end of the sliding rod away from the fixed sleeve is fixedly connected to the surface of the movable ring, an end of the sliding rod located inside the fixed sleeve is fixedly connected to a first spring, and an end of the first spring away from the sliding rod is fixedly connected to the inner wall of the fixed sleeve.

[0008] Preferably, the inner wall of the third cavity is also provided with a movable ring, a fixed sleeve, a sliding rod and a first spring.

[0009] Preferably, the movable ring on the first cavity is fixedly connected to the side away from the rear end cover with four protrusions arranged equidistantly in a circle, and the cross-section of the protrusion is trapezoidal. The inner wall of the front end cover is rotatably connected to a rotating disk, and the surface of the rotating disk is also fixedly connected with protrusions. There are two protrusions on the rotating disk, and the two protrusions are arranged equidistantly in a circle on the rotating disk.

[0010] Preferably, a slider is fixedly connected to the inner wall of the rotating disk, a slide groove is provided at the output end of the motor body, and the surface of the slider is slidably connected to the inner wall of the slide groove.

[0011] Preferably, two partition plates are fixedly connected to the inner wall of the first cavity, and the surfaces of the two partition plates are provided with through holes arranged at equal distances, and the through holes connect the first cavity and the third cavity.

[0012] Preferably, a fixing ring is fixedly connected to the inner wall of the through hole, a blocking block with a convex cross-section is slidably connected to the inner wall of the fixing ring, a second spring is fixedly connected to the surface of the blocking block, one end of the second spring away from the blocking block is fixedly connected to the inside of the fixing ring, and the fixing ring, blocking block and second spring on the two dividing plates are arranged oppositely.

[0013] Preferably, two connecting plates are fixedly connected to the surface of the motor housing, a mounting seat is fixedly connected to one end of the two connecting plates away from the motor housing, and heat dissipation fins are fixedly connected to the surface of the motor housing.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The suspended low-noise reduction motor can allow the coolant in the third cavity and the first cavity to mix with each other, so that the coolant in the third cavity can continuously absorb the heat generated by the motor body during operation, thereby reducing the temperature of the motor body, thereby avoiding the situation where the setting of the sound-absorbing cotton on the motor body affects the heat dissipation of the motor body of the device, thereby causing the motor body to generate high temperature and reducing the service life of the device, thereby improving the use effect of the device and having a high promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 This is a structural schematic diagram of a suspended low-noise reduction motor of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the front end cover of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the motor housing of the utility model;

[0020] Figure 4 This is a schematic diagram of the surface structure of the rotating disk of the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the partition plate of the utility model;

[0022] Figure 6 It is a schematic diagram of the internal structure of the fixing sleeve of the utility model.

[0023] Figure numerals: 1. heat sink fin; 2. front end cover; 3. rear end cover; 4. motor body; 5. slide groove; 6. connecting plate; 7. mounting seat; 8. motor housing; 9. slider; 10. rotating disk; 11. sound-absorbing cotton; 12. protrusion; 13. moving ring; 14. first cavity; 15. second cavity; 16. third cavity; 17. fixing sleeve; 18. sliding rod; 19. dividing plate; 20. first spring; 21. through hole; 22. blocking block; 23. second spring; 24. fixing ring. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] See also Figure 1-6 The utility model provides a technical solution: a suspended low-noise reduction motor, including a motor housing 8, a front end cover 2 and a rear end cover 3, the front end cover 2 and the rear end cover 3 are respectively on the front and rear sides of the motor housing 8, the front end cover 2 and the rear end cover 3 are connected to the motor housing 8 by screws, the inner wall of the motor housing 8 is fixedly installed with a motor body 4, the output shaft of the motor body 4 passes through the surface of the front end cover 2 and is slidably connected to the inside of the front end cover 2, the surface of the motor housing 8 is fixedly connected with two connecting plates 6, the ends of the two connecting plates 6 away from the motor housing 8 are fixedly connected with a mounting seat 7, bolts are provided on the mounting seat 7, and then the device can be installed at the corresponding mounting position by the bolts, so that it can be suspended.

[0026] Furthermore, a third cavity 16, a second cavity 15 and a first cavity 14 are provided inside the motor housing 8, and the third cavity 16, the second cavity 15 and the first cavity 14 are arranged in sequence from the inside to the outside on the motor housing 8. Two dividing plates 19 are fixedly connected to the inner wall of the first cavity 14, thereby dividing the second cavity 15. Two arc-shaped sound-absorbing cottons 11 are placed on the inner wall of the second cavity 15, so that the arc-shaped sound-absorbing cotton 11 can fit more closely with the interior of the motor housing 8. At the same time, the setting of the sound-absorbing cotton 11 can absorb the sound generated when the motor body 4 is running, thereby playing a role in noise reduction.

[0027] One side of the first cavity 14 is connected to the outside, and a moving ring 13 is slidably connected to the inner wall of the first cavity 14, and a sealing gasket is arranged on the surface of the moving ring 13. The setting of the sealing gasket can fill the gap between the inner wall of the first cavity 14 and the moving ring 13, thereby avoiding leakage of the medium in the first cavity 14 and ensuring the smooth operation of the device. A fixed sleeve 17 is fixedly connected to the inner wall of the first cavity 14, and a sliding rod 18 is slidably connected to the inner wall of the fixed sleeve 17. The end of the sliding rod 18 away from the fixed sleeve 17 is fixedly connected to the surface of the moving ring 13, and the end of the sliding rod 18 located inside the fixed sleeve 17 is fixedly connected to a first spring 20, and the end of the first spring 20 away from the sliding rod 18 is fixedly connected to the inner wall of the fixed sleeve 17, so as to drive the sliding rod 18 and the moving ring 13 to reset. The inner wall of the third cavity 16 is also provided with a moving ring 13, a fixed sleeve 17, a sliding rod 18 and a first spring 20.

[0028] Furthermore, the first cavity 14 and the third cavity 16 are filled with cooling liquid, so as to absorb the heat generated by the motor body 4 during operation, thereby playing a role in cooling the motor body 4 .

[0029] The movable ring 13 on the first cavity 14 is fixedly connected to one side away from the rear end cover 3 with four protrusions 12 arranged equidistantly in a circle, and the cross-section of the protrusion 12 is trapezoidal. The inner wall of the front end cover 2 is rotatably connected with a rotating disk 10, and the inner wall of the rotating disk 10 is fixedly connected with a slider 9. A slide groove 5 is provided at the output end of the motor body 4, and the surface of the slider 9 is slidably connected to the inner wall of the slide groove 5. Therefore, through the arrangement of the slider 9 and the slide groove 5, when the output shaft of the motor body 4 rotates, the inner wall of the slide groove 5 can push the surface of the slider 9, thereby driving the rotating disk 10 and the output shaft of the motor body 4 to rotate synchronously, thereby ensuring the smooth operation of the device.

[0030] The surface of the rotating disk 10 is also fixedly connected with protrusions 12 . There are two protrusions 12 on the rotating disk 10 , and the two protrusions 12 are arranged equidistantly on the circumference of the rotating disk 10 .

[0031] The surfaces of the two dividing plates 19 are provided with through holes 21 arranged at equal intervals, and the through holes 21 connect the first cavity 14 and the third cavity 16. The inner wall of the through hole 21 is fixedly connected with a fixing ring 24, and the inner wall of the fixing ring 24 is slidably connected with a blocking block 22 with a convex cross-section. A sealing gasket is provided on the surface of the blocking block 22 to seal the gap between the blocking block 22 and the fixing ring 24, thereby avoiding leakage of liquid between the blocking block 22 and the inner wall of the fixing ring 24, and ensuring the smooth operation of the device.

[0032] A second spring 23 is fixedly connected to the surface of the blocking block 22, and one end of the second spring 23 away from the blocking block 22 is fixedly connected to the inside of the fixing ring 24 for resetting the blocking block 22. The fixing rings 24, the blocking block 22 and the second spring 23 on the two dividing plates 19 are arranged in opposite directions, so that the coolant can only be discharged from the through hole 21 in one dividing plate 19 and enter from the through hole 21 in one dividing plate 19, thereby ensuring the smooth operation of the device.

[0033] Furthermore, the surface of the motor housing 8 is fixedly connected with heat dissipation fins 1, so that the heat dissipation efficiency of the motor body 4 is accelerated through the setting of the heat dissipation fins 1, and the heat accumulation of the motor body 4 is avoided, thereby reducing the service life of the motor body 4.

[0034] Specifically, when in use, the output shaft of the motor body 4 rotates, thereby driving the rotating disk 10 to rotate, thereby driving the position of the protrusion 12 on the rotating disk 10 to change. As the protrusion 12 on the rotating disk 10 moves, the inclined surface of the protrusion 12 on the rotating disk 10 contacts the inclined surface of the protrusion 12 on the moving ring 13, thereby pushing the moving ring 13 to slide in the first cavity 14, thereby pushing the sliding rod 18 to slide in the fixed sleeve 17, and compressing the first spring 20, thereby reducing the space in the first cavity 14, thereby cooling the first cavity 14. The liquid pushes the blocking block 22 in a dividing plate 19, so that the blocking block 22 is separated from the fixing ring 24, and the second spring 23 is stretched, so that the fixing ring 24 is no longer closed, and then the coolant in the first cavity 14 begins to flow into the third cavity 16, and mixes with the coolant in the third cavity 16, and cools down the coolant in the third cavity 16, so that the coolant in the third cavity 16 can continue to absorb the heat of the motor body 4 when it is running. At the same time, due to the injection of the coolant into the third cavity 16, the third cavity 16 is driven The movable ring 13 in the third cavity 16 slides, so that the slide bar 18 and the fixed sleeve 17 in the third cavity 16 slide against each other, so that the first spring 20 in the third cavity 16 is compressed, and then when the protrusion 12 on the rotating disk 10 is separated from the protrusion 12 on the movable ring 13, under the elastic force of the two first springs 20, the movable ring 13 in the first cavity 14 and the third cavity 16 are restored to their original state, and at the same time, the coolant in the third cavity 16 flows into the first cavity 14 from the fixed ring 24 in the other dividing plate 19, so that the hotter coolant and the coolant in the third cavity 16 are mixed. The third cavity 16 and the first cavity 14 are mixed to cool the hotter coolant, so that when the device is in use, the coolant in the third cavity 16 and the first cavity 14 can be mixed with each other, so that the coolant in the third cavity 16 can continue to absorb the heat of the motor body 4 during operation, thereby reducing the temperature of the motor body 4, thereby avoiding the situation where the setting of the sound-absorbing cotton 11 on the motor body 4 affects the heat dissipation of the motor body 4 of the device, thereby causing the motor body 4 to generate high temperature and reducing the service life of the device, thereby improving the use effect of the device and having a high promotion value.

[0035] Working principle: The rotation of the output shaft of the motor body 4 drives the rotating disk 10 to rotate, so that the coolant in the third cavity 16 and the first cavity 14 can mix with each other, so that the coolant in the third cavity 16 can continuously absorb the heat of the motor body 4 during operation, thereby reducing the temperature of the motor body 4.

[0036] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A suspended low-noise reduction motor, comprising a motor housing (8), a front end cover (2) and a rear end cover (3), characterized in that: The front end cover (2) and the rear end cover (3) are respectively located at the front and rear sides of the motor housing (8); the front end cover (2) and the rear end cover (3) are connected to the motor housing (8) by screws; a motor body (4) is fixedly mounted on the inner wall of the motor housing (8); an output shaft of the motor body (4) penetrates the surface of the front end cover (2) and is slidably connected to the inside of the front end cover (2); a third cavity (16), a second cavity (15) and a first cavity (14) are provided inside the motor housing (8); the third cavity (16), the second cavity (15) and the first cavity (14) are arranged in sequence from the inside to the outside on the motor housing (8); two arc-shaped sound-absorbing cottons (11) are placed on the inner wall of the second cavity (15); and the first cavity (14) and the third cavity (16) are both filled with cooling liquid.

2. A suspended low-noise reduction motor according to claim 1, characterized in that: One side of the first cavity (14) is connected to the outside, the inner wall of the first cavity (14) is slidably connected to a movable ring (13), the inner wall of the first cavity (14) is fixedly connected to a fixed sleeve (17), the inner wall of the fixed sleeve (17) is slidably connected to a sliding rod (18), one end of the sliding rod (18) away from the fixed sleeve (17) is fixedly connected to the surface of the movable ring (13), one end of the sliding rod (18) located inside the fixed sleeve (17) is fixedly connected to a first spring (20), and one end of the first spring (20) away from the sliding rod (18) is fixedly connected to the inner wall of the fixed sleeve (17).

3. A suspended low-noise reduction motor according to claim 2, characterized in that: The inner wall of the third cavity (16) is also provided with a moving ring (13), a fixing sleeve (17), a sliding rod (18) and a first spring (20).

4. The suspended low-noise reduction motor according to claim 2 is characterized in that: The movable ring (13) on the first cavity (14) is fixedly connected to a side away from the rear end cover (3) with four protrusions (12) arranged equidistantly in a circle, and the cross section of the protrusion (12) is trapezoidal. The inner wall of the front end cover (2) is rotatably connected to a rotating disk (10), and the surface of the rotating disk (10) is also fixedly connected to the protrusion (12). The number of the protrusions (12) on the rotating disk (10) is two, and the two protrusions (12) are arranged equidistantly in a circle on the rotating disk (10).

5. The suspended low-noise reduction motor according to claim 4 is characterized in that: A slider (9) is fixedly connected to the inner wall of the rotating disk (10), a slide groove (5) is provided at the output end of the motor body (4), and the surface of the slider (9) is slidably connected to the inner wall of the slide groove (5).

6. The suspended low-noise reduction motor according to claim 1, characterized in that: Two partition plates (19) are fixedly connected to the inner wall of the first cavity (14), and the surfaces of the two partition plates (19) are provided with through holes (21) arranged at equal distances, and the through holes (21) communicate with the first cavity (14) and the third cavity (16).

7. The suspended low-noise reduction motor according to claim 6, characterized in that: A fixing ring (24) is fixedly connected to the inner wall of the through hole (21), a blocking block (22) with a convex cross section is slidably connected to the inner wall of the fixing ring (24), a second spring (23) is fixedly connected to the surface of the blocking block (22), one end of the second spring (23) away from the blocking block (22) is fixedly connected to the inside of the fixing ring (24), and the fixing ring (24), the blocking block (22) and the second spring (23) on the two dividing plates (19) are arranged oppositely.

8. The suspended low-noise reduction motor according to claim 1, characterized in that: Two connecting plates (6) are fixedly connected to the surface of the motor housing (8); one end of the two connecting plates (6) away from the motor housing (8) is fixedly connected to a mounting seat (7); and the surface of the motor housing (8) is fixedly connected to a heat dissipation fin (1).

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