Novel worm and gear type transmission mechanism

Abstract

The utility model discloses a novel worm and gear type transmission mechanism which comprises a worm gear and a worm. A first permanent magnet is arranged in gear teeth of the worm gear, a second permanent magnet spirally extending along with the teeth is arranged in the teeth of the worm, the first permanent magnet is in a strip shape, and the second permanent magnet is in a spiral shape with a long-strip-shaped section. When the worm gear is matched with the worm, the N pole of the first permanent magnet on the worm gear generates attraction to the S pole of the second permanent magnet on the worm and generates thrust to the N pole. According to the utility model, the worm gear and worm transmission mechanism is improved, and the permanent magnets are respectively arranged in the worm gear and the worm, so that the N pole of the permanent magnet I on the worm gear generates attraction force to the S pole of the permanent magnet II on the worm and generates thrust force to the N pole according to the principle that like poles repel and unlike poles attract; similarly, the N pole and the S pole of the worm also generate attraction force and thrust force on the first permanent magnet on the worm wheel, under the condition, when the worm wheel is used for driving rotation, the worm wheel and worm pair cannot be self-locked, and therefore the application range of the worm wheel and worm pair is greatly expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission mechanisms, in particular to a novel worm and worm gear transmission mechanism. Background Art

[0002] The worm and worm gear transmission consists of a worm and a worm gear, with the worm being the driving part. The worm and worm gear transmission has the characteristics of small volume, large transmission ratio, stable operation, low noise, and large output torque of the worm gear, and is commonly used in occasions where the two shafts are staggered, the transmission ratio is large, the transmitted power is not too large, or intermittent work is required. However, the existing worm and worm gear transmission mechanism also has deficiencies. The most important one is that when it works, the worm is the driving part, that is, the worm drives the worm gear to rotate, and the worm gear cannot drive the worm to rotate in reverse, only allowing one-way transmission, which greatly limits its application range. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the above-mentioned technical defects and provide a novel worm and worm gear transmission mechanism.

[0004] To solve the above technical problem, the technical solution provided by the utility model is a novel worm and worm gear transmission mechanism: including a worm gear and a worm, the worm gear and the worm are in cooperative transmission;

[0005] A permanent magnet I is arranged inside the teeth of the worm gear, and a permanent magnet II extending spirally along with the teeth is arranged inside the teeth of the worm. The permanent magnet I is strip-shaped, and the permanent magnet II is spiral-shaped with a rectangular cross-section;

[0006] When the worm gear and the worm are in cooperation, the N pole of the permanent magnet I on the worm gear generates an attractive force on the S pole of the permanent magnet II on the worm and a repulsive force on the N pole.

[0007] Further, the module of the worm gear is 15 and the number of teeth is 18.

[0008] The advantages of the utility model compared with the prior art are as follows: by improving the worm and worm gear transmission mechanism and respectively arranging permanent magnets in the worm gear and the worm, the utility model utilizes the principle of like poles repelling and opposite poles attracting. The N pole of the permanent magnet I on the worm gear generates an attractive force on the S pole of the permanent magnet II on the worm and a repulsive force on the N pole. Similarly, the N and S poles of the worm also respectively generate an attractive force and a repulsive force on the permanent magnet I on the worm gear. Under this condition, when the worm gear rotates actively, the worm and worm gear pair will not self-lock, thus greatly expanding its application range. Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of a novel worm and worm gear transmission mechanism of the utility model.

[0010] Figure 2It is a schematic structural diagram when the worm wheel and worm of a new worm and worm wheel type transmission mechanism of the present utility model are engaged

[0011] As shown in the figure:

[0012] 1. Worm wheel, 2. Worm, 3. Permanent magnet 1, 4. Permanent magnet 2, 5. Gear Specific implementation manner

[0013] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations

[0014] Embodiment 1, in combination with the attached Figure 1-2 , a new worm and worm wheel type transmission mechanism, comprising a worm wheel 1 and a worm 2, and the worm wheel 1 is engaged with the worm 2 for transmission

[0015] A permanent magnet 1 is arranged inside the teeth of the worm wheel 1, and a permanent magnet 2 extending spirally along with the teeth is arranged inside the teeth of the worm 2. The permanent magnet 1 is strip-shaped, and the permanent magnet 2 is spiral-shaped with a long strip-shaped cross-section

[0016] When the worm wheel 1 and the worm 2 are engaged, the N pole of the permanent magnet 1 on the worm wheel 1 generates an attractive force on the S pole of the permanent magnet 2 on the worm 2 and a repulsive force on the N pole

[0017] The module of the worm wheel is 15 and the number of teeth is 18

[0018] A gear 5 is connected to the shaft of the worm wheel 1

[0019] During use, the worm 2 can drive the worm wheel 1 to rotate as the driving part, and at the same time the gear 5 rotates. When it is necessary to use the worm wheel 1 as the driving part, only need to drive the gear 5 to rotate through an external drive gear, and the worm wheel 1 rotates, then the worm 2 can be driven to rotate

[0020] In the description of the embodiments of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is customarily placed during use, it is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0021] In addition, if terms such as "horizontal", "vertical", "hanging" and other terms do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0022] In the description of the embodiments of the present utility model, "a plurality of" represents at least two.

[0023] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are 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 directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] The above describes the present utility model and its embodiments. Such a description is not restrictive. What is shown in the drawings is only one of the embodiments of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the creative purpose of the present utility model, without creative design, the structural modes and embodiments similar to the technical solution should all fall within the protection scope of the present utility model.

Claims

1. A novel worm and worm gear transmission mechanism, characterized in that: It includes a worm wheel (1) and a worm (2), and the worm wheel (1) is in meshing transmission with the worm (2). A first permanent magnet (3) is arranged inside the teeth of the worm wheel (1), and a second permanent magnet (4) which extends spirally along with the teeth is arranged inside the teeth of the worm (2). The first permanent magnet (3) is strip-shaped, and the second permanent magnet (4) is spiral-shaped with a long strip-shaped cross section. When the worm wheel (1) and the worm (2) are in cooperation, the N pole of the first permanent magnet (3) on the worm wheel (1) generates an attractive force on the S pole of the second permanent magnet (4) on the worm (2) and a repulsive force on the N pole.

2. A novel worm and worm gear transmission mechanism according to claim 1, characterized in that: The module of the worm wheel is 15 and the number of teeth is 18.

3. A novel worm and worm gear transmission mechanism according to claim 1, characterized in that: A gear (5) is connected to the shaft of the worm wheel (1).

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