An automatic cleaning device for motor filter screen

Abstract

The utility model discloses a motor filter screen automatic cleaning device, it includes clutch and cleaning rod subassembly, clutch includes clutch shell and spring limit mechanism, clutch shell coaxial sleeve connection is in impeller pivot, and the middle part of clutch shell is provided with the limit slot, and the side wall of limit slot is provided with spring mounting groove, one end of spring is fixed in spring mounting groove, and the other end of spring is equipped with steel ball, cleaning rod subassembly includes cleaning rod, transmission shaft and brush, and the first end of transmission shaft is embedded in limit slot, and the end of transmission shaft passes through filter screen and is rotatablely connected with filter screen, and the end of cleaning rod is fixed in transmission shaft, and the brush is arranged on cleaning rod, and the brush is in abutment with filter screen, the side of first end of transmission shaft is provided with the sunken groove, and the steel ball is embedded in sunken groove in first position, and the steel ball is separated from sunken groove in second position. Its simple structure has realized the automatic cleaning of motor filter screen.

Description

Technical Field

[0001] This utility model relates to electromechanical equipment, and more particularly to an automatic cleaning device for motor filter screens. Background Technology

[0002] When fabrics undergo the setting process in a hot air tenter frame, the hot air blows away lint from the fabric surface, causing lint to float around the equipment. The motors in the equipment are equipped with cooling impellers, and this lint is attracted to the air inlet filter by these impellers. Over time, a thick layer of lint accumulates on the filter, causing blockage. A clogged filter prevents the cooling impeller from drawing in air, leading to overheating of the motor and potentially burning it out. Furthermore, because the motor is located inside a housing or in a high position, it is difficult to clean manually. Therefore, there is an urgent need to improve the existing motor structure to achieve automatic cleaning of the motor filter and extend the motor's lifespan. Utility Model Content

[0003] The purpose of this invention is to provide an automatic cleaning device for motor filter screens.

[0004] The technical solution to achieve the purpose of this utility model is: an automatic cleaning device for a motor filter screen, comprising a clutch and a cleaning rod assembly. The clutch is installed inside the motor, and an impeller shaft is installed inside the motor. A filter screen is installed on the outer casing of the motor, and the filter screen is opposite to the impeller shaft. The clutch includes a clutch housing and a spring limiting mechanism. The clutch housing is coaxially sleeved on the end of the impeller shaft near the filter screen. A limiting groove is formed in the middle of the clutch housing, and a spring mounting groove is formed on the side wall of the limiting groove. The spring limiting mechanism includes a spring and a steel ball, and the axial direction of the spring is perpendicular to the axial direction of the impeller shaft. One end of the spring is fixed in the spring mounting groove, and the other end of the spring is fitted with the steel ball; the sweeping rod assembly includes a sweeping rod, a drive shaft, and a brush, the drive shaft has a head end and an end end, the head end is embedded in the limiting groove, the end end passes through the filter screen and is rotatably connected to the filter screen, the sweeping rod is fixed to the end end, the sweeping rod is provided with a brush, the brush faces the filter screen and abuts against the filter screen; a hemispherical groove is opened on the side of the head end, the steel ball has a first position and a second position, the steel ball is embedded in the groove at the first position, and the steel ball is disengaged from the groove at the second position.

[0005] Furthermore, there are several sets of spring limiting mechanisms, each of which is symmetrically arranged along the axial direction of the impeller shaft. The first end of the transmission shaft is symmetrically provided with several grooves along the axial direction of the impeller shaft, and each spring limiting mechanism corresponds to one of the grooves.

[0006] If the cleaning device and the cooling impeller are directly connected, the cleaning rod will wear out easily due to excessive speed when the impeller is rotating at high speed, and it will also generate high noise. Furthermore, the strong suction generated by the high-speed rotation of the impeller makes it difficult to clean lint and other foreign objects. To overcome the shortcomings of direct connection, this application adopts an innovative clutch structure. When the impeller shaft rotates at low speed, the steel balls are embedded in the sedimentation tank under the action of spring force. The impeller shaft drives the drive shaft to rotate, which in turn drives the cleaning rod to automatically clean the lint at the air intake filter. When the impeller shaft rotates at high speed, the steel balls overcome the spring pressure under the action of centrifugal force and disengage from the sedimentation tank, achieving the effect of disengaging the clutch housing and drive shaft. The drive shaft stops cleaning, thereby realizing automatic cleaning of the filter when the motor is at low speed, improving the cleaning efficiency of the motor filter and extending the service life of the motor. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the main structure of the motor described in an embodiment of the present utility model; Figure 2 for Figure 1 A schematic diagram of the AA-direction cross-section of the automatic cleaning device for the motor filter screen described in the figure. Detailed Implementation

[0008] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0009] like Figure 1 and Figure 2 As shown, an automatic cleaning device for a motor filter includes a clutch 1 and a cleaning rod assembly 2. The clutch 1 is installed inside a motor 10, and an impeller shaft 101 is installed inside the motor 10. A filter 102 is installed on the outer casing of the motor 10, and the filter 102 is opposite to the impeller shaft 101. The clutch 1 includes a clutch housing 11 and two sets of spring limiting mechanisms 12. The clutch housing 11 is coaxially sleeved on the end of the impeller shaft 102 near the filter 102. A limiting groove 111 is provided in the middle of the impeller shaft 101. Two spring mounting grooves 112 are symmetrically provided on the side wall of the limiting groove 111 along the axial direction of the impeller shaft 101. A set of spring limiting mechanisms 12 is installed in each spring mounting groove 112. Each spring limiting mechanism 12 includes a spring 121 and a steel ball 122. The axial direction of the spring 121 is perpendicular to the axial direction of the impeller shaft 101. One end of the spring 121 is fixed in the spring mounting groove 112, and the other end of the spring 121 is equipped with the steel ball 122.

[0010] The sweeping rod assembly 2 includes a sweeping rod 21, a drive shaft 22, and a brush 23. The drive shaft 22 has a head end 221 and an end end 222. The head end 221 is embedded in the limiting groove 111, and the end end 222 passes through the filter screen 102 and is rotatably connected to the filter screen 102. The sweeping rod 21 is fixed to the end end 222. The brush 23 is arranged on the sweeping rod 21, and the brush 23 faces the filter screen 102 and abuts against the filter screen 23. Two hemispherical grooves 2211 are opened on the side of the head end 221. Each steel ball 122 has a first position and a second position. The steel ball 122 is embedded in the groove 2211 opposite to it in the first position, and the steel ball 122 is disengaged from the groove 2211 opposite to it in the second position.

[0011] The working principle of the automatic motor filter cleaning device implemented in this embodiment is as follows: (1) When the impeller shaft 101 rotates at low speed, such as Figure 2 As shown, the steel ball 122 is embedded in the settling trough 2211. This is the first position of the steel ball 122. At this time, the clutch is closed, the impeller shaft 101 drives the transmission shaft 22 to rotate, and then drives the cleaning rod 21 to automatically clean the lint at the filter screen 102. (2) When the impeller shaft 101 rotates at high speed, the centrifugal force on the steel ball 122 is greater than the elastic force of the spring 121, causing the spring 121 to contract. The steel ball 122 disengages from the sink 2211. This is the second position of the steel ball 122. At this time, the clutch is disengaged and the cleaning rod 21 stops working.

[0012] The number of spring limiting mechanisms described in this utility model is not limited to that shown in the embodiment. One set of spring limiting mechanisms can realize the automatic cleaning of the motor filter screen, and the clutch structure assembled with multiple sets of spring limiting mechanisms is more stable.

[0013] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent process transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic cleaning device for motor filter screens, characterized in that: It includes a clutch and a sweeping rod assembly. The clutch is installed inside a motor, which houses an impeller shaft. A filter screen is installed on the motor housing, opposite the impeller shaft. The clutch includes a clutch housing and a spring-limiting mechanism. The clutch housing is coaxially sleeved on the end of the impeller shaft near the filter screen. A limiting groove is formed in the middle of the clutch housing, and a spring mounting groove is formed on the side wall of the limiting groove. The spring-limiting mechanism includes a spring and a steel ball. The axis of the spring is perpendicular to the axis of the impeller shaft, and one end of the spring is fixed to the spring mounting mechanism. Inside the groove, the other end of the spring is fitted with the steel ball; the sweeping rod assembly includes a sweeping rod, a drive shaft, and a brush. The drive shaft has a head end and an end end. The head end is embedded in the limiting groove, and the end end passes through the filter screen and is rotatably connected to the filter screen. The sweeping rod is fixed to the end end, and the sweeping rod is provided with a brush. The brush faces the filter screen and abuts against the filter screen. A hemispherical groove is opened on the side of the head end. The steel ball has a first position and a second position. The steel ball is embedded in the groove at the first position and is disengaged from the groove at the second position.

2. The automatic cleaning device for motor filter screen according to claim 1, characterized in that: There are several sets of spring limiting mechanisms, each of which is symmetrically arranged along the axial direction of the impeller shaft. The first end of the transmission shaft is symmetrically provided with several grooves along the axial direction of the impeller shaft, and each spring limiting mechanism corresponds to each groove.

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