Damping adjustable self-locking motor and working method thereof

Abstract

The present invention belongs to the technical field of motors, and in particular to a damping-adjustable self-locking motor and a working method thereof; the present invention provides a damping-adjustable self-locking motor, comprising: a motor body; a transmission screw, which is sleeved on the outer wall of the transmission shaft of the motor body and is suitable for horizontal sliding relative to the transmission shaft; a locking device, which is fixed to a side of a fixed frame close to the transmission screw, and the locking device is suitable for limiting the transmission screw; wherein, when the transmission shaft stops rotating, the transmission screw moves horizontally toward the locking device, and the damping block of the locking device abuts against the transmission screw to limit its rotation; after the damping block is worn and thinned, the damping block is pushed to move in the direction of the transmission screw; through the setting of the locking device, the transmission screw can be locked and limited when the transmission shaft stops rotating, and when the damping block is worn, the damping block is pushed toward the transmission screw, thereby improving the locking effect.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and specifically relates to a motor with a friction brake, and more particularly to a damping-adjustable self-locking motor and a working method thereof. Background Art

[0002] A dual-shaft motor refers to a motor with transmission shafts protruding from both ends. The transmission shafts at both ends are used to drive various machines to rotate, thereby generating power.

[0003] The dual-axis motor is used in the electric clothes drying rack. The rotation of the transmission shaft drives the winding roller of the electric clothes drying rack to rotate forward and reverse to realize the lifting and lowering of the clothes drying rod. When the transmission shaft stops rotating, the self-locking device abuts against the end of the transmission shaft to prevent the transmission shaft from rotating at will.

[0004] During actual use, the clothes hung on the clothesline cannot be hung evenly and orderly. All the clothes will be hung on one end of the clothesline, resulting in a heavier weight on one end of the clothesline. If this continues for a long time, it will cause increased wear between the self-locking device at one end of the motor and the drive shaft, resulting in the self-locking device being unable to lock the drive shaft.

[0005] Therefore, how to solve the problem that the locking effect of the transmission shaft becomes poor after the self-locking device is worn is a technical problem that needs to be solved urgently in this field.

[0006] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0007] The embodiments of the present disclosure at least provide a damping-adjustable self-locking motor and a working method thereof.

[0008] In a first aspect, an embodiment of the present disclosure provides a damping adjustable self-locking motor, comprising:

[0009] Motor body;

[0010] A transmission screw, which is sleeved on the outer wall of the transmission shaft of the motor body and is suitable for horizontal sliding relative to the transmission shaft;

[0011] A locking device, which is fixed to a side of the fixing frame close to the transmission screw, and the locking device is suitable for limiting the transmission screw;

[0012] When the transmission shaft stops rotating, the transmission screw moves horizontally toward the locking device, and the damping block of the locking device abuts against the transmission screw to limit its rotation;

[0013] After the damping block is worn and becomes thinner, the damping block is pushed to move toward the transmission screw.

[0014] In an optional embodiment, the locking device includes: a supporting block, which is horizontally arranged in the fixing frame and has an arc shape;

[0015] A limit block, which is fixed to an end of the support block away from the motor body and has a through hole, and the end of the transmission screw is suitable for inserting into the through hole;

[0016] The damping block is slidably arranged in the through hole.

[0017] In an optional embodiment, a compression spring is fixed in the through hole, one end of the compression spring is fixed to the side wall of the damping block, and the compression spring is suitable for pushing the damping block to move in the direction of the transmission screw.

[0018] In an optional embodiment, a collecting groove is provided on the supporting block, and the collecting groove is suitable for collecting grease;

[0019] A sealing disk matched with the collecting groove is sleeved on the outer wall of one end of the transmission screw away from the limiting block, and the sealing disk is suitable for horizontal movement in the collecting groove.

[0020] In an optional embodiment, an oil replenishing pipe is opened in the limit block along the length direction, the oil replenishing pipe is connected with the through hole, and a one-way valve is arranged in the oil replenishing pipe.

[0021] In an optional embodiment, an oil delivery groove is formed on the bottom wall of the collecting tank, the oil delivery groove is connected to the oil replenishing pipe, and the sealing disk is suitable for sealing the oil delivery groove.

[0022] In a second aspect, the embodiment of the present disclosure further provides a working method of a self-locking motor, including:

[0023] The motor body is suitable for driving the transmission screw to rotate circumferentially; when the transmission screw stops rotating, it is suitable for horizontally moving relative to the transmission shaft in the direction of the locking device until it abuts against the damping block;

[0024] When the damping block is worn and becomes thinner, the damping block is pushed to move toward the transmission screw so that it abuts against the transmission screw.

[0025] The beneficial effect of the present invention is that a damping adjustable self-locking motor and a working method thereof, through the setting of a locking device, when the transmission shaft stops rotating, the transmission screw abuts against the damping block to lock and limit the transmission screw. When the damping block is worn, the damping block is pushed toward the transmission screw to improve the locking effect. The situation where the transmission screw cannot be limited after the damping block is worn is avoided, and the service life of the equipment is improved.

[0026] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A three-dimensional diagram of a damping adjustable self-locking motor provided in an embodiment of the present disclosure;

[0030] Figure 2 A three-dimensional diagram of a drive screw and a locking device provided in an embodiment of the present disclosure;

[0031] Figure 3 A cutaway perspective view of a drive screw and a locking device provided in an embodiment of the present disclosure;

[0032] Figure 4 A front view of a drive screw and a locking device provided in an embodiment of the present disclosure;

[0033] Figure 5 A schematic diagram of the abutment state of the transmission screw and the damping block provided in an embodiment of the present disclosure.

[0034] In the figure:

[0035] 1. Motor body; 10. Transmission shaft;

[0036] 2. Fixed frame;

[0037] 3. Transmission screw; 30. Sealing disc;

[0038] 4. Locking device; 40. Damping block; 41. Supporting block; 42. Limiting block; 43. Through hole; 44. Compression spring; 45. Collecting tank; 46. Oil supply pipe; 47. One-way valve; 48. Oil delivery tank. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In this article, when it is mentioned that the first component is located on the second component, this may mean that the first component may be directly formed on the second component, or the third component may be interposed between the first component and the second component. In addition, in the drawings, in order to effectively describe the technical content, the thickness of the components may be exaggerated or reduced.

[0041] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." modify the entire list of elements when following a list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0042] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limited. As used herein, the singular articles "one", "an" and "the" may also be intended to include plural forms, unless it is clearly indicated above that this is not the case. The terms "comprise", "include" and "have" are inclusive, and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0043] The research found that the disadvantage of the prior art is that the transmission screw moves toward the damping block, and the wear of the damping block makes it thinner, resulting in reduced friction. The traditional damping block cannot move horizontally, and after it is worn, it cannot limit the transmission screw.

[0044] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present invention in this article for the above problems should be the contributions made by the inventor to the present invention during the disclosure process.

[0045] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0046] like Figures 1 to 5 As shown, some embodiments provide a damping adjustable self-locking motor, comprising: a motor body 1; which is horizontally arranged in a fixed frame 2; preferably, the fixed frame 2 can be a fixed shell of an electric clothes drying rack. Two winding rollers are rotatably arranged in the fixed frame 2, and the clothesline is wound on the outer wall of the winding roller. The winding roller is connected to the transmission screw 3 through a traditional gear, and the transmission screw 3 is suitable for driving the winding roller to rotate in the forward and reverse directions when the transmission screw 3 rotates circumferentially, so as to achieve winding or unwinding of the clothesline. The transmission screw 3 is sleeved on the outer wall of the transmission shaft 10 of the motor body 1, and is suitable for horizontal sliding relative to the transmission shaft 10; when the transmission shaft 10 rotates circumferentially, it drives the transmission screw 3 to rotate synchronously; when the transmission shaft 10 stops rotating, the transmission screw 3 is pushed by the transmission gear to move horizontally toward the locking device 4 until it abuts against the damping block 40. The locking device 4 is fixed on one side of the fixed frame 2 close to the transmission screw 3, and the locking device 4 is suitable for limiting the transmission screw 3; wherein, when the transmission shaft 10 stops rotating, the transmission screw 3 moves horizontally toward the locking device 4, and the damping block 40 of the locking device 4 abuts against the transmission screw 3 to limit its rotation; after the damping block 40 is worn and thinned, the damping block 40 is pushed to move in the direction of the transmission screw 3. By setting the locking device 4, when the transmission shaft 10 stops rotating, the transmission screw 3 abuts against the damping block 40 to lock and limit the transmission screw 3. When the damping block 40 is worn, the damping block 40 is pushed to move toward the transmission screw 3, thereby improving the locking effect. The situation that the damping block 40 cannot limit the transmission screw 3 after being worn is avoided, thereby improving the service life of the equipment.

[0047] Reference Figure 2 The locking device 4 includes: a support block 41, which is horizontally arranged in the fixing frame 2 and is in an arc shape; the support block 41 is arranged below the driving screw 3, and the support block 41 and the driving screw 3 are parallel to each other; a limit block 42, which is fixed to the end of the support block 41 away from the motor body 1, and has a through hole 43, and the end of the driving screw 3 is suitable for inserting into the through hole 43; a damping block 40 is slidably arranged in the through hole 43. When the transmission shaft 10 stops rotating, the driving screw 3 moves toward the limit block 42 and is inserted into the through hole 43 until it abuts against the damping block 40. The damping block 40 is suitable for limiting the driving screw 3 to prevent it from continuing to rotate in the circumferential direction.

[0048] Reference Figure 3A compression spring 44 is fixed in the through hole 43, one end of which is fixed to the side wall of the damping block 40. The compression spring 44 is suitable for pushing the damping block 40 to move in the direction of the transmission screw 3. In order to prevent the damping block 40 from being pushed by the transmission screw 3 to move in the through hole 43, the through hole 43 and the oil supply pipe 46 are filled with grease. The damping block 40 can only move in the direction of the transmission screw 3, and the transmission screw 3 cannot push the damping block 40 to move in the through hole 43.

[0049] In order to add grease to the oil supply pipe 46, a collecting groove 45 is provided on the support block 41 along the length direction. The collecting groove 45 is arranged below the transmission screw 3. The collecting groove 45 is suitable for collecting grease dripping from the transmission screw 3 and the transmission gear. The collecting groove 45 is suitable for collecting grease. A sealing disk 30 adapted to the collecting groove 45 is sleeved on the outer wall of the end of the transmission screw 3 away from the limit block 42. The sealing disk 30 is suitable for horizontal movement in the collecting groove 45. When the sealing disk 30 moves horizontally in the collecting groove 45, it is suitable for pushing the grease in the collecting groove 45 to flow in the direction of the limit block 42.

[0050] Reference Figure 4 , an oil replenishing pipe 46 is provided in the limit block 42 along the length direction, the oil replenishing pipe 46 is connected with the through hole 43, and a one-way valve 47 is arranged in the oil replenishing pipe 46. The oil replenishing pipe 46 is suitable for conveying grease into the through hole 43, and the grease can only flow from the left side to the right side of the one-way valve 47 to the through hole 43. Synchronously, the oil replenishing pipe 46 on the right side of the one-way valve 47 and the through hole 43 are filled with grease. When the damping block 40 is worn by the transmission screw 3, resulting in its thickness becoming thinner, the compression spring 44 is suitable for pushing the damping block 40 to move toward the direction of the transmission screw 3; at this time, the space in the through hole 43 increases, and when the damping block 40 moves outward, the negative pressure in the through hole 43 is used to absorb the grease in the oil replenishing pipe 46, so that the grease on the left side of the one-way valve 47 flows into the one-way valve 47. This ensures that the grease in the through hole 43 always exerts a thrust on the damping block 40 to prevent the damping block 40 from moving into the through hole 43 .

[0051] Reference Figure 3 In order to replenish grease in time, the bottom wall of the collecting tank 45 is provided with an oil delivery groove 48, the oil delivery groove 48 is connected with the oil replenishing pipe 46, and the sealing plate 30 is suitable for sealing the oil delivery groove 48. When the transmission screw 3 moves horizontally toward the damping block 40, the sealing plate 30 moves horizontally synchronously until the sealing plate 30 seals the oil delivery groove 48. At this time, when the grease on the left side of the negative pressure adsorption check valve 47 moves to the right in the through hole 43, air is prevented from entering the through hole 43.

[0052] Some embodiments provide a working method of a self-locking motor, including:

[0053] The motor body 1 is suitable for driving the transmission screw 3 to rotate circumferentially; when the transmission screw 3 stops rotating, it is suitable for horizontally moving relative to the transmission shaft 10 toward the locking device 4 until it abuts against the damping block 40;

[0054] When the damping block 40 is worn and becomes thinner, the damping block 40 is pushed to move toward the transmission screw 3 so as to abut against the transmission screw 3 .

[0055] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0057] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A damping adjustable self-locking motor, characterized in that: include: Motor body (1); A transmission screw (3) which is sleeved on the outer wall of the transmission shaft (10) of the motor body (1) and is suitable for sliding horizontally relative to the transmission shaft (10); A locking device (4) fixed to a side of the fixing frame (2) close to the transmission screw (3), wherein the locking device (4) is suitable for limiting the position of the transmission screw (3); When the transmission shaft (10) stops rotating, the transmission screw (3) moves horizontally toward the locking device (4), and the damping block (40) of the locking device (4) abuts against the transmission screw (3) to limit its rotation; After the damping block (40) is worn and becomes thinner, the damping block (40) is pushed to move in the direction of the transmission screw (3); The locking device (4) comprises: a supporting block (41) which is horizontally arranged in the fixing frame (2) and is in the shape of an arc; A limit block (42) is fixed to an end of the support block (41) away from the motor body (1), and is provided with a through hole (43), and the end of the transmission screw rod (3) is suitable for being inserted into the through hole (43); The damping block (40) is slidably disposed in the through hole (43); A compression spring (44) is fixed in the through hole (43), one end of the compression spring (44) is fixed to the side wall of the damping block (40), and the compression spring (44) is suitable for pushing the damping block (40) to move in the direction of the transmission screw (3); The supporting block (41) is provided with a collecting groove (45), and the collecting groove (45) is suitable for collecting grease; A sealing disk (30) adapted to the collecting groove (45) is sleeved on the outer wall of one end of the transmission screw rod (3) away from the limiting block (42), and the sealing disk (30) is adapted to move horizontally in the collecting groove (45); An oil replenishing pipe (46) is provided in the limit block (42) along the length direction, the oil replenishing pipe (46) is in communication with the through hole (43), and a one-way valve (47) is provided in the oil replenishing pipe (46); The bottom wall of the collecting tank (45) is provided with an oil delivery tank (48), the oil delivery tank (48) is in communication with the oil replenishing pipe (46), and the sealing disk (30) is suitable for sealing the oil delivery tank (48).

2. A method for operating a self-locking motor, using the damping adjustable self-locking motor as claimed in claim 1, characterized in that: include: The motor body (1) is suitable for driving the transmission screw (3) to rotate in a circumferential direction; when the transmission screw (3) stops rotating, it is suitable for moving horizontally relative to the transmission shaft (10) in the direction of the locking device (4) until it abuts against the damping block (40); When the damping block (40) is worn and becomes thinner, the damping block (40) is pushed to move in the direction of the transmission screw (3) so as to abut against the transmission screw (3).

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