A silent snow blower motor with a direct current brushless motor

Abstract

The utility model relates to motor manufacturing technical field, concretely is a kind of direct current brushless motor for mute snow sweeper, including first shell, second shell, third shell, pivot and protective device, the first shell is installed in one end of third shell, the second shell is installed in the end of third shell away from first shell, the pivot is installed in the inside of second shell, the protective device is installed in the surface of third shell, the protective device includes protective cover and protective cover, the protective cover is installed in the surface of third shell, the protective cover is installed in one end of protective cover, the inside fixedly connected with the resistance rod of protective cover, the resistance rod is inserted and is connected in the inside of second shell, the protective cover is close to the end fixedly connected with the resistance plate of first shell, the resistance plate is inserted and is connected in the inside of first shell, the inside installation of protective cover has sound insulation cover.The utility model protective device, realized the isolation of noise, improved the security of user.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to a silent brushless DC motor for snow sweepers. Background Technology

[0002] Snow sweepers are high-efficiency outdoor equipment for removing snow. Their core function is to collect, break, and transport snow through mechanical structures, quickly clearing snow from roads, courtyards, squares, and other areas. They are suitable for snow removal needs in various scenarios such as municipal sanitation, residential communities, and airport runways. Due to their advantages such as high efficiency, energy saving, convenient speed adjustment, and long lifespan, DC brushless motors have become the mainstream drive component for snow sweepers, undertaking the key function of driving the snow sweeping impeller to rotate at high speed.

[0003] However, the existing equipment has the following shortcomings: When the existing equipment is in use, the high speed of the equipment can easily generate a lot of noise, and prolonged use by users can easily cause hearing damage.

[0004] Therefore, we propose a silent DC brushless motor for snow sweepers to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where equipment generates high noise levels during use, which can affect users and damage their hearing. This invention proposes a silent DC brushless motor for snow sweepers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a silent brushless DC motor for a snow sweeper, comprising a first housing, a second housing, a third housing, a rotating shaft, and a protective device. The first housing is installed at one end of the third housing, the second housing is installed at the end of the third housing away from the first housing, the rotating shaft is installed inside the second housing, and the protective device is installed on the surface of the third housing. The protective device includes a protective cover and a protective cap. The protective cover is installed on the surface of the third housing, and the protective cap is installed at one end of the protective cover. A stop rod is fixedly connected inside the protective cover, and the stop rod is inserted into the interior of the second housing. A stop plate is fixedly connected at the end of the protective cap near the first housing, and the stop plate is inserted into the interior of the first housing. A soundproof cover is installed inside the protective cover, and mounting rings are fixedly connected to both ends of the soundproof cover. A pull handle is fixedly connected to the end of the protective cover away from the first housing.

[0007] Furthermore, the protective cover has positioning holes on its side and pull holes on its surface. By setting up the protective cover, the equipment can be completely isolated and protected, reducing the possibility of the equipment generating excessive noise during use and affecting the normal use of the user.

[0008] Furthermore, a positioning plate is slidably connected inside the pull hole, and one end of the positioning plate is inserted into the inside of the positioning hole. The positioning plate is provided to facilitate the limiting of the protective cover.

[0009] Furthermore, a first spring is fixedly connected to the end of the positioning plate away from the positioning hole, and the end of the first spring away from the positioning plate is fixedly connected to the inside of the pull hole. The first spring is provided to facilitate the application of a reset spring force to the positioning plate.

[0010] Furthermore, an auxiliary component is fixedly installed inside the mounting ring. The auxiliary component includes a connecting groove and a connecting plate. The connecting groove is formed on the surface of the protective cover. The connecting plate is fixedly connected to the side of the mounting ring and inserted into the connecting groove. A positioning rod is fixedly connected inside the connecting groove. The connecting plate is inserted into the surface of the positioning rod. A moving hole is formed on the surface of the connecting plate. A pressure plate is slidably connected inside the moving hole. One end of the pressure plate abuts against the surface of the positioning rod. By setting the pressure plate, the connecting plate can be limited. In the existing equipment, vibration is easily generated during use, which may cause the connecting plate to be shaken out of the mounting position.

[0011] Furthermore, a second spring is fixedly connected to the end of the pressure plate away from the positioning rod, and the end of the second spring away from the pressure plate is fixedly connected inside the moving hole. The second spring is provided to facilitate the application of a reset force to the pressure plate.

[0012] Furthermore, a pull rod is fixedly connected to the surface of the pressure plate near the second spring.

[0013] Furthermore, the pull rod is slidably connected inside the moving hole.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this utility model, by setting a protective device, the main body of the equipment is effectively protected, which plays a role in protecting the equipment and reducing the possibility of excessive noise generated by the high speed of the equipment during use, which may cause hearing damage to users after prolonged use. This protective device achieves noise isolation and improves the safety of users.

[0015] In this invention, by setting an auxiliary component, the insertion and positioning of the connecting plate and the positioning rod in the equipment can limit the installation rings at both ends of the soundproof cover, reducing the risk of the soundproof cover rotating inside the protective cover during use, which could cause friction damage between the soundproof cover and the protective cover and the equipment surface, affecting the normal use of the soundproof cover. This auxiliary component achieves the limiting and fixing of the soundproof cover, thereby improving its service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 A three-dimensional structural diagram of a silent brushless DC motor for a snow sweeper is provided for this utility model. Figure 2 This utility model provides a schematic diagram of the internal structure of a silent brushless DC motor for a snowplow; Figure 3 This utility model presents a partial structural diagram of a silent brushless DC motor for a snowplow; Figure 4 This invention proposes a silent DC brushless motor for a snowplow. Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This invention proposes a silent DC brushless motor for a snowplow. Figure 3 Enlarged structural diagram at point B; Figure 6 This utility model presents a schematic diagram of the protective device for a silent brushless DC motor used in a snowplow.

[0018] Legend: 1. First outer shell; 2. Second outer shell; 3. Third outer shell; 4. Rotating shaft; 5. Protective device; 51. Protective cover; 52. Protective cap; 53. Soundproof cover; 54. Mounting ring; 55. Support plate; 56. Pull handle; 57. Support rod; 58. Positioning hole; 59. Pull hole; 510. Positioning plate; 511. First spring; 6. Auxiliary component; 61. Connecting groove; 62. Connecting plate; 63. Positioning rod; 64. Moving hole; 65. Pressure plate; 66. Pull rod; 67. Second spring. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1-5 This utility model provides a technical solution: a silent brushless DC motor for a snow sweeper, including a first housing 1, a second housing 2, a third housing 3, a rotating shaft 4 and a protective device 5. The first housing 1 is installed at one end of the third housing 3, the second housing 2 is installed at the end of the third housing 3 away from the first housing 1, and the rotating shaft 4 is installed inside the second housing 2.

[0021] The first outer shell 1, the second outer shell 2, and the third outer shell 3 together constitute the protective housing of the motor. They are made of high-strength noise-reducing alloy material, which has both structural rigidity and shock absorption performance, and can reduce the transmission of vibration during motor operation. The rotating shaft 4 is the core of power output. It is equipped with high-precision bearings, which can rotate smoothly and with low vibration, reducing noise from the source. The protective device 5 integrates sound insulation, dustproof and impact-proof functions, which can not only block the intrusion of external foreign objects, but also effectively isolate the noise of motor operation, which is suitable for the outdoor quiet operation requirements of snow sweepers.

[0022] The specific settings and functions of its protective device 5 and auxiliary components 6 will be discussed below.

[0023] In this implementation scheme: the protective device 5 is installed on the surface of the third outer shell 3. The protective device 5 includes a protective cover 51 and a protective cover 52. The protective cover 51 is the core sound insulation and protection component of the motor, adopting a double-layer hollow structure with sound insulation cotton laminated to the inner layer, which can effectively block airborne and structural sound transmission generated by the motor operation. The protective cover 52 is the sealing end cap of the protective cover 51, which, together with the protective cover 51, forms a fully enclosed protective space, further improving the sound insulation and sealing effect. The protective cover 51 is installed on the surface of the third outer shell 3, and the protective cover 52 is installed on one side of the protective cover 51. At the end of the protective cover 51, a stop rod 57 is fixedly connected inside, and the stop rod 57 is inserted into the inside of the second outer shell 2. A stop plate 55 is fixedly connected to the end of the protective cover 52 near the first outer shell 1, and the stop plate 55 is inserted into the inside of the first outer shell 1. A soundproof cover 53 is installed inside the protective cover 51. The soundproof cover 53 is made of high-density soundproof felt material, and the surface is provided with sound-absorbing texture, which can absorb the high-frequency noise generated by the motor operation. Mounting rings 54 are fixedly connected to both ends of the soundproof cover 53, and a pull handle 56 is fixedly connected to the end of the protective cover 51 away from the first outer shell 1.

[0024] Specifically, the protective cover 51 has a positioning hole 58 on its side, and the protective cover 52 has a pull hole 59 on its surface.

[0025] In this embodiment, by setting up a protective cover 51, the equipment can be completely isolated and protected, reducing the likelihood of the equipment generating excessive noise during use and affecting the normal use by the user.

[0026] Specifically, a positioning plate 510 is slidably connected inside the pull hole 59. One end of the positioning plate 510 is inserted into the positioning hole 58. The positioning plate 510 is set to facilitate the limiting of the protective cover 52.

[0027] Specifically, a first spring 511 is fixedly connected to one end of the positioning plate 510 away from the positioning hole 58. The other end of the first spring 511 away from the positioning plate 510 is fixedly connected inside the pull hole 59. The first spring 511 is provided to facilitate the application of a reset spring force to the positioning plate 510.

[0028] In this embodiment: An auxiliary component 6 is fixedly installed inside the mounting ring 54. The auxiliary component 6 includes a connecting groove 61 and a connecting plate 62. The connecting groove 61 is opened on the surface of the protective cover 51. The connecting plate 62 is fixedly connected to the side of the mounting ring 54. The connecting plate 62 is inserted and connected inside the connecting groove 61. A positioning rod 63 is fixedly connected inside the connecting groove 61. The connecting plate 62 is inserted and connected to the surface of the positioning rod 63. A moving hole 64 is opened on the surface of the connecting plate 62. A pressure plate 65 is slidably connected inside the moving hole 64. One end of the pressure plate 65 abuts against the surface of the positioning rod 63.

[0029] In this embodiment: By setting the pressure plate 65, the connecting plate 62 can be limited. When the existing equipment is in use, it is easy to generate vibration, which may cause the connecting plate 62 to be shaken out of the installation position.

[0030] Specifically, a second spring 67 is fixedly connected to the end of the pressure plate 65 away from the positioning rod 63. The end of the second spring 67 away from the pressure plate 65 is fixedly connected to the inside of the moving hole 64. The second spring 67 is provided to facilitate the application of a reset spring force to the pressure plate 65.

[0031] Specifically, a pull rod 66 is fixedly connected to one end of the pressure plate 65 near the second spring 67. The pull rod 66 extends to the outside of the connecting plate 62 for easy manual pulling operation.

[0032] Specifically, the pull rod 66 is slidably connected inside the moving hole 64, and the pull rod 66 and the moving hole 64 are fitted with a clearance, allowing for smooth sliding.

[0033] Working principle: Before using the equipment, the protective cover 51 needs to be installed on the equipment surface. Then, the protective cover 51 is placed on the equipment surface, and the positioning rod 63 is inserted into the hole on the surface of the second outer shell 2 for positioning. After limiting the position of the protective cover 51, the soundproof cover 53 is placed inside the protective cover 51. Before the soundproof cover 53 is in contact with the bottom of the protective cover 51, the user moves the pull rod 66 to drive the pressure rod to compress the second spring 67, generating elastic force. Then, the pressure plate 65 moves away from the insertion hole of the positioning rod 63 inside the connecting plate 62. After the positioning rod 63 in the connecting groove 61 of the side of the mounting ring 54 is inserted and positioned, the pull rod 66 is released. Then, the second spring 67 returns to its original position, pressing the pressure plate 65 against the surface of the positioning rod 63, limiting the position of the mounting ring 54. Finally, the pull handle 56 is pulled to move the protective cover 53. After the surfaces of the cover 52 and the protective cover 51 are combined, the abutment 55 is inserted and positioned into the hole at one end of the first outer shell 1. Pulling the positioning plate 510 compresses the first spring 511 to generate elastic force. After the positioning plate 510 is retracted into the interior of the protective cover 52, the protective cover 52 and the protective cover 51 are completely and tightly fitted. After the positioning plate 510 is released, the first spring 511 drives the positioning plate 510 to be inserted into the positioning hole 58, mechanically locking the protective cover 52. By setting the protective device 5, the main body of the equipment is effectively protected, which plays a role in protecting the equipment. It reduces the possibility of excessive noise generated by the high speed of the equipment during use, which may cause hearing damage to users after prolonged use. This protective device 5 achieves noise isolation and improves the safety of users.

[0034] By setting the auxiliary component 6, the insertion and positioning of the connecting plate 62 and the positioning rod 63 in the equipment can limit the installation rings 54 at both ends of the soundproof cover 53, reducing the risk of the soundproof cover 53 rotating inside the protective cover 51 during use, which could cause friction damage between the soundproof cover 53 and the protective cover 51 and the equipment surface, affecting the normal use of the soundproof cover 53. This auxiliary component 6 achieves the limitation of the soundproof cover 53, fixes the soundproof cover 53, and improves the service life of the soundproof cover 53.

[0035] The above description discloses only one or more preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of the present utility model still fall within the scope of the present utility model.

Claims

1. A silent brushless DC motor for a snowplow, comprising a first housing (1), a second housing (2), a third housing (3), a rotating shaft (4), and a protective device (5), characterized in that: The first outer shell (1) is installed at one end of the third outer shell (3), the second outer shell (2) is installed at the end of the third outer shell (3) away from the first outer shell (1), and the rotating shaft (4) is installed inside the second outer shell (2); The protective device (5) is installed on the surface of the third outer shell (3). The protective device (5) includes a protective cover (51) and a protective cover (52). The protective cover (51) is installed on the surface of the third outer shell (3). The protective cover (52) is installed at one end of the protective cover (51). A stop rod (57) is fixedly connected inside the protective cover (51). The stop rod (57) is inserted into the interior of the second outer shell (2). A stop plate (55) is fixedly connected at the end of the protective cover (52) near the first outer shell (1). The stop plate (55) is inserted into the interior of the first outer shell (1). A soundproof cover (53) is installed inside the protective cover (51). Mounting rings (54) are fixedly connected at both ends of the soundproof cover (53). A pull handle (56) is fixedly connected at the end of the protective cover (51) away from the first outer shell (1).

2. The silent brushless DC motor for a snowplow according to claim 1, characterized in that: The protective cover (51) has a positioning hole (58) on its side, and the protective cover (52) has a pull hole (59) on its surface.

3. The silent brushless DC motor for a snowplow according to claim 2, characterized in that: A positioning plate (510) is slidably connected inside the pull hole (59), and one end of the positioning plate (510) is inserted into the positioning hole (58).

4. The silent brushless DC motor for a snowplow according to claim 3, characterized in that: The first spring (511) is fixedly connected to one end of the positioning plate (510) away from the positioning hole (58), and the other end of the first spring (511) away from the positioning plate (510) is fixedly connected to the inside of the pull hole (59).

5. A silent brushless DC motor for a snowplow according to claim 1, characterized in that: An auxiliary component (6) is fixedly installed inside the mounting ring (54). The auxiliary component (6) includes a connecting groove (61) and a connecting plate (62). The connecting groove (61) is opened on the surface of the protective cover (51). The connecting plate (62) is fixedly connected to the side of the mounting ring (54). The connecting plate (62) is inserted into the connecting groove (61). A positioning rod (63) is fixedly connected inside the connecting groove (61). The connecting plate (62) is inserted into the surface of the positioning rod (63). A moving hole (64) is opened on the surface of the connecting plate (62). A pressure plate (65) is slidably connected inside the moving hole (64). One end of the pressure plate (65) abuts against the surface of the positioning rod (63).

6. A silent brushless DC motor for a snowplow according to claim 5, characterized in that: The end of the pressure plate (65) away from the positioning rod (63) is fixedly connected to a second spring (67), and the end of the second spring (67) away from the pressure plate (65) is fixedly connected to the inside of the moving hole (64).

7. A silent brushless DC motor for a snowplow according to claim 6, characterized in that: A pull rod (66) is fixedly connected to one end of the pressure plate (65) near the second spring (67).

8. A silent brushless DC motor for a snowplow according to claim 7, characterized in that: The pull rod (66) is slidably connected inside the moving hole (64).

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