Split type deceleration gear ring

Abstract

The utility model relates to motor transmission parts discloses a split type reduction gear ring, including gear ring baffle, gear ring and buffer piece, gear ring baffle sets up in the motor inside, gear ring baffle is equipped with the limiting structure for limiting component relative movement, gear ring passes through limiting structure and sets up in gear ring baffle, the inside wall of gear ring is equipped with the gear surface for transmission, buffer piece is clamped between gear ring baffle with gear ring, and buffer piece with limiting structure cooperation, realizes gear ring with gear ring baffle's relative limit and vibration buffering. Solve the technical problem that the reduction gear ring in relevant technology has integral type structure and is difficult to disassemble, and the split type structure has insufficient reliability.

Description

Technical Field

[0001] This utility model relates to the technical field of electric motor transmission components, and in particular to a split-type reduction gear ring. Background Technology

[0002] In the prior art, the reduction gear ring is a structure used to transmit torque between the armature shaft and the drive shaft. It is mostly an integrated structure or a split design. The integrated structure is difficult to disassemble and assemble, and the whole structure needs to be replaced during maintenance, which is costly and inefficient. In the split structure, the limiting reliability of the gear ring and the retaining sleeve is insufficient, and relative rotation is prone to occur, which affects the transmission accuracy. In addition, it is easy to generate abnormal noise or cause fatigue damage to the components due to vibration during operation. Utility Model Content

[0003] This application discloses a split-type reduction gear ring to solve the technical problems in related technologies, such as the difficulty in disassembling and assembling an integrated structure and the insufficient reliability of the limiting mechanism in a split structure.

[0004] To solve the above problems, the present invention adopts the following technical solution: A split-type reduction gear ring, comprising: A gear ring retainer is installed inside the motor, and the gear ring retainer has a limiting structure for restricting the relative movement of components; The gear ring is set inside the gear ring retainer by a limiting structure; the inner sidewall of the gear ring is provided with toothed surfaces for transmission. The buffer is sandwiched between the gear ring retainer and the gear ring, and the buffer cooperates with the limiting structure to achieve relative limiting and vibration buffering between the gear ring and the gear ring retainer.

[0005] Optionally, the limiting structure includes a groove on the inner side wall of the gear ring retainer and a boss on the outer side wall of the gear ring; the boss is embedded in the groove to restrict the rotation of the gear ring around the axis.

[0006] Optionally, the limiting structure is provided in at least two sets, with each set of grooves symmetrically distributed along the circumference of the gear ring retainer; and each set of bosses symmetrically distributed along the circumference of the gear ring.

[0007] Optionally, the groove opening is provided with a guide slope, and the end of the boss is provided with a mating slope that is adapted to the guide slope, so that the boss is guided into the groove by the slope.

[0008] Optionally, the buffer is a ring structure, and the outer wall of the buffer is provided with a protrusion corresponding to the groove; the protrusion is embedded in the groove, and one side of it abuts against the toothed ring.

[0009] Optionally, the protrusion is provided with a mating groove on the side near the gear ring that mates with the boss on the outer wall of the gear ring; when the gear ring abuts against the buffer, the boss is correspondingly mated in the mating groove.

[0010] Optionally, the gear ring retainer is fixedly connected to the inside of the motor by a limiting member.

[0011] Optionally, the gear ring retainer is provided with a mounting ear, which has a through hole, and the limiting member passes through the through hole and is fixed inside the motor.

[0012] The technical solution adopted in this utility model can achieve the following beneficial effects: This utility model discloses a split-type reduction gear ring. Through the separate design of the gear ring and the retaining sleeve, the gear ring can be disassembled or replaced individually without replacing the entire component, reducing maintenance costs and improving maintenance efficiency. The limiting structure composed of a "groove-boss" configuration, combined with at least two sets of symmetrically distributed designs, effectively restricts the relative rotation of the gear ring around its axis, preventing tooth surface wear or transmission failure due to misalignment during transmission, thus improving transmission accuracy and stability. The buffer component, through the engagement of a protrusion and a groove, with the protrusion's mating groove matching the gear ring's boss, allows the buffer component to both participate in limiting movement and enhance structural integrity, while also forming an effective buffer between the gear ring and the retaining sleeve, reducing vibration transmission, eliminating abnormal operating noise, and extending component lifespan. The mating groove of the protrusion on the buffer component, connected to the boss, ensures effective buffering when the gear ring experiences relative motion tendencies under axial or circumferential forces during operation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 These are assembly cross-sectional schematic diagrams disclosed in some embodiments of this application; Figure 2 This is a cross-sectional view of the gear ring retainer; Figure 3 This is a schematic diagram of the inner side of the gear ring retainer; Figure 4 This is a schematic diagram of one side of the buffer component; Figure 5 This is a cross-sectional view of the buffer component; Figure 6 This is a cross-sectional view of the gear ring; Figure 7 This is a schematic diagram of one side of the gear ring.

[0015] In the diagram: 1-gear ring retainer, 101-groove, 102-shaft hole, 2-gear ring, 201-tooth surface, 202-bore, 3-buffer, 301-protrusion. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0018] Due to the technical problems of existing reduction gear rings, such as the difficulty in disassembling and assembling an integrated structure and the insufficient reliability of the limiting mechanism in a split structure, it is necessary to design a design that is easy to replace and disassemble, and that can effectively buffer during operation while reducing abnormal noise and vibration between detachable parts.

[0019] The following is in conjunction with the appendix Figures 1 to 7 The present application provides a detailed description of a split-type reduction gear ring through specific embodiments and application scenarios.

[0020] As shown in Figure 1, the split-type reduction gear ring of this utility model includes three core components: a gear ring retainer 1, a gear ring 2, and a buffer 3. The gear ring retainer 1 is fixed inside the motor, the gear ring 2 is embedded in the gear ring retainer 1 through a limiting structure, and the buffer 3 is sandwiched between the two, participating in both limiting and vibration buffering. The three components work together to form a stable reduction transmission structure. The gear ring retainer 1 is an annular sleeve structure. Its outer diameter is adapted to the internal mounting cavity of the motor and is fixed inside the motor by a limiting component. It is used to support the gear ring 2 and achieve overall positioning. The inner wall of the gear ring 2 is provided with a tooth surface 201 for meshing with the output gear of the motor, and the outer wall is in clearance fit with the inner wall of the gear ring retainer 1. The connection with the gear ring retainer 1 is achieved through a limiting structure. The buffer 3 is a ring structure made of elastic material (such as rubber) and is located between the inner wall of the toothed ring 2 and the toothed ring retainer 1. Its structure is compatible with the limiting structure. By fixing the gear ring retainer 1 and limiting the gear ring 2 and gear ring retainer 1 together, the relative position of the gear ring 2 is fixed. Furthermore, by setting the buffer 3 between the gear ring 2 and gear ring retainer 1, the abnormal noise and vibration generated between the gear ring 2 and gear ring retainer 1 during operation are reduced, thereby improving transmission accuracy and stability.

[0021] like Figure 3 As shown, in one embodiment, mounting ears are provided on both sides of the outer side wall of the gear ring retainer 1, and through holes are provided on them for fixing by a limiting member; the limiting member is preferably a bolt, which passes through the through hole and fixes the gear ring retainer 1 to the preset mounting position of the motor housing; By using the limiting component and the mounting ear, the gear ring retainer 1 is ensured to not undergo circumferential or axial displacement during motor operation, thus preventing misalignment between the gear ring 2 and other transmission components of the motor due to loose retainer and improving the overall installation stability.

[0022] like Figure 3 As shown, in one embodiment, the inner sidewall of the gear ring retainer 1 is provided with at least two sets of grooves 101. In this embodiment, it is preferred to have 6 sets. Each set of grooves 101 is arranged along the circumference of the gear ring retainer 1 and is evenly and symmetrically distributed with respect to the mounting ears on both sides. The included angle between adjacent grooves 101 is preferably 45°. Specifically, the multiple sets of symmetrically distributed grooves 101 can disperse the radial force transmitted by the gear ring 2, avoid local wear caused by the force concentration of a single set of limiting structures, and at the same time restrict the rotation of the gear ring 2 around the axis, ensuring the relative position of the gear ring 2 and the gear ring retainer 1 is stable during the transmission process, thereby improving the transmission accuracy.

[0023] In one embodiment, the groove edge of the groove 101 is provided with a guide slope, and the angle between the slope and the inner sidewall of the gear ring retainer 1 is preferably 30°, and it is inclined towards the bottom of the groove; Specifically, during assembly, the guide slope can guide the boss 202 of the gear ring 2 to be accurately embedded into the groove 101, reducing manual alignment errors, avoiding damage to the edge of the gear ring 2 or the groove 101 caused by forced assembly, and improving assembly efficiency.

[0024] like Figure 6 and 7 As shown, in one embodiment, the outer side wall of the gear ring 2 is provided with a boss 202 that corresponds one-to-one with the groove 101. The shape of the boss 202 is adapted to the groove 101 and extends along the axial direction of the gear ring 2. Specifically, after the boss 202 is embedded in the groove 101, the circumferential rotation of the gear ring 2 relative to the gear ring retainer 1 is restricted by mechanical engagement, so as to avoid wear of the tooth surface 201 or transmission failure caused by relative sliding during the transmission process, and ensure the stability of power transmission. Preferably, the end of the boss 202 near the assembly direction is provided with a mating inclined surface adapted to the guide inclined surface, and the inclination angles of the two are the same. During assembly, the mating inclined surface slides in contact with the guide inclined surface, forming a synergistic effect of guidance and positioning, so that the boss 202 can be smoothly embedded into the groove 101 without precise alignment, reducing the assembly difficulty, and is especially suitable for rapid installation in mass production.

[0025] like Figure 4 and 5 As shown, in one embodiment, the outer side wall of the buffer 3 is provided with protrusions 301 that correspond one-to-one with the grooves 101. The shape of the protrusions 301 is adapted to the groove cavity of the groove 101, and after being embedded in the groove 101, they are in close contact with the groove wall. The protrusion 301 fills the gap between the groove 101 and the boss 202, which not only avoids the metal boss 202 from directly and rigidly contacting the groove 101, but also absorbs the radial vibration of the gear ring 2 during operation through its own elastic deformation, reducing the vibration transmitted to the gear ring sleeve 1, thereby eliminating abnormal noise and extending the service life of the component. Preferably, the protrusion 301 has a mating groove on the side near the gear ring 2, the shape of which is adapted to the outer wall of the protrusion 202, and the protrusion 202 fits tightly against the groove wall after being inserted into the mating groove. The engagement of the groove and the boss 202 enables the buffer 3 and the gear ring 2 to move together, preventing the buffer 3 from sliding relative to the gear ring 2 during vibration and ensuring a stable buffering effect. At the same time, the synergistic effect of the groove and the boss 301 enhances the overall integrity of the limiting structure and further restricts the circumferential rotation of the gear ring 2. Furthermore, through the engagement of the groove of the boss 301 on the buffer 3 with the boss 202, the gear ring 2 can be effectively buffered when it is subjected to axial or circumferential forces and has a tendency to move relative to the boss during operation.

[0026] The working principle of the split-type reduction gear ring of this application is as follows: Assembly process: First, align the protrusion 301 of the buffer 3 with the groove 101 of the gear ring retainer 1. Place the buffer 3 at the bottom of the groove 101 of the gear ring retainer 1. Then, align the mating slope of the outer boss 202 of the gear ring 2 with the guide slope of the gear ring retainer 1 and push it in axially. Guided by the slope, the boss 202 is simultaneously embedded in the groove 101 until the gear ring 2 is completely installed in the gear ring retainer 1, and the boss 202 is embedded in the mating groove of the protrusion 301 of the buffer 3. Finally, fix the mounting ear of the gear ring retainer 1 to the motor housing with the limiting component (bolt) to complete the overall assembly. Working process: When the motor is running, the tooth surface 201 meshes with the output gear to transmit power, and the gear ring 2 is subjected to circumferential torque. Due to the mechanical limitation of the boss 202 and the groove 101, the gear ring 2 cannot rotate relative to the gear ring retainer 1, and the torque is transmitted to the motor housing through the gear ring retainer 1. At the same time, the radial vibration generated by the operation of the gear ring 2 is absorbed by the buffer 3, which prevents the vibration from being directly transmitted to the gear ring retainer 1, reducing abnormal noise and component wear.

[0027] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0028] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0029] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A split-type reduction gear ring, characterized in that, include: A gear ring retainer (1) is disposed inside the motor, and the gear ring retainer (1) is provided with a limiting structure for restricting the relative movement of components; The gear ring (2) is set inside the gear ring retainer (1) by the limiting structure; the inner sidewall of the gear ring (2) is provided with a tooth surface (201) for transmission. The buffer (3) is sandwiched between the gear ring retainer (1) and the gear ring (2), and the buffer (3) cooperates with the limiting structure to realize the relative limiting and vibration buffering of the gear ring (2) and the gear ring retainer (1).

2. The split-type reduction gear ring according to claim 1, characterized in that, The limiting structure includes a groove (101) on the inner side wall of the gear ring retainer (1) and a boss (202) on the outer side wall of the gear ring (2); the boss (202) is embedded in the groove (101) to restrict the gear ring (2) from rotating around the axis.

3. A split-type reduction gear ring according to claim 2, characterized in that, The limiting structure is provided in at least two sets, and the grooves (101) in each set are symmetrically distributed along the circumference of the gear ring sleeve (1); the bosses (202) in each set are symmetrically distributed along the circumference of the gear ring (2).

4. A split-type reduction gear ring according to claim 2, characterized in that, The groove (101) has a guide slope at the opening, and the end of the boss (202) has a mating slope that is adapted to the guide slope. The boss (202) is guided into the groove (101) by the slope.

5. A split-type reduction gear ring according to claim 4, characterized in that, The buffer (3) is a ring structure. The outer side wall of the buffer (3) is provided with a protrusion (301) corresponding to the groove (101). The protrusion (301) is embedded in the groove (101) and one side of it abuts against the toothed ring (2).

6. A split-type reduction gear ring according to claim 5, characterized in that, The protrusion (301) is provided with a mating groove on the side near the toothed ring (2) that mates with the boss (202) on the outer side wall of the toothed ring (2); when the toothed ring (2) abuts against the buffer (3), the boss (202) is correspondingly mated in the mating groove.

7. A split-type reduction gear ring according to claim 1, characterized in that, The gear ring retainer (1) is fixedly connected to the inside of the motor by a limiting member.

8. A split-type reduction gear ring according to claim 7, characterized in that, The gear ring retainer (1) is provided with a mounting ear, the mounting ear is provided with a through hole, and the limiting member passes through the through hole and is fixed inside the motor.

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