Motor reducing mechanism

Abstract

The utility model discloses a motor reducing mechanism, which belongs to the field of motors, and comprises a fixed gear and a driving gear which are respectively fixedly arranged on the inner vertical surfaces of two ends of a bracket, and an output end penetrates through and is rotationally connected with the middle part of the fixed gear. According to the motor speed reducing mechanism, after the prime motor is started, the driving gear is firstly driven to rotate, the driving gear is meshed with the transmission gear, and the fixed gear is fixed and cannot move, so that the guide gear synchronously drives the output gear to drive the output gear to rotate; the output gear drives the output end to rotate and output power, so that the power of the prime motor is transmitted by the transmission gear, the fixed gear, the guide gear and the output gear to achieve the effect of reducing the rotating speed; therefore, when speed reduction transmission with a large transmission ratio is needed, an additional multi-stage transmission structure does not need to be added, friction loss in the speed reduction process with the large transmission ratio is reduced, and the transmission efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of motors, and in particular relates to a motor speed reduction mechanism. Background Art

[0002] In many industrial application scenarios, the rated speed of the motor cannot be fully used because it needs to match the needs and functions of other equipment. Therefore, the speed of the motor needs to be slowed down. The role of the speed reduction mechanism is to reduce the motor speed to the required speed while increasing the torque.

[0003] The speed reduction mechanism itself cannot generate power, but is used to transmit power between the prime mover and the output end. It usually uses various gear transmissions to achieve the purpose of speed reduction. For example, using a small gear to drive a large gear can achieve a certain speed reduction purpose. If a multi-stage structure is adopted, the speed can be greatly reduced. The ratio of the number of teeth of the large and small gears is the transmission ratio; however, when the transmission ratio is too large and multi-stage reduction is adopted, it is necessary to use multiple sets of gears for transmission, which increases the friction loss in the transmission process and reduces the efficiency of the motor power transmission. In this regard, an improvement of the motor speed reduction mechanism is proposed. Utility Model Content

[0004] In view of one or more of the above defects or improvement needs in the prior art, the utility model provides a motor reduction mechanism, which has the advantages of reducing friction loss in the large transmission ratio deceleration process and improving transmission efficiency.

[0005] To achieve the above object, the utility model provides a motor deceleration mechanism, including a bracket, characterized in that:

[0006] A fixed gear and a driving gear are fixedly installed on the inner facades at both ends of the bracket respectively, an output end is penetrated through the middle of the fixed gear and rotatably connected, an output gear is fixedly installed at one end of the output end, a rotating rod is rotatably provided between the output gear and the driving gear, a support rod is fixedly installed in the middle of the rotating rod in a forked shape, and a guide gear and a transmission gear are fixedly installed in the middle and end of the support rod respectively.

[0007] As a further improvement of the utility model, a prime motor is fixedly mounted on the outer facade of the bracket, and the prime motor rotationally drives the driving gear. The output end, the rotating rod, and the prime motor are in the same straight line direction.

[0008] As a further improvement of the present invention, both ends of the rotating rod are fixedly mounted with limit plates, and the limit plates are inserted into the output gear and the driving gear to maintain the rotational connection while forming a limit.

[0009] As a further improvement of the present invention, a limiting ring is fixedly installed in the middle of the output end and is inserted into the fixed gear through the limiting ring to maintain the rotational connection while forming a limit.

[0010] As a further improvement of the present invention, the fixed gear, the driving gear, the output gear, the guide gear and the transmission gear are all bevel gears, and the transmission gear is meshed with the fixed gear and the driving gear at the same time, and the output gear remains meshed with the guide gear.

[0011] As a further improvement of the present invention, the support rod is arranged obliquely, and the guide gear is parallel to the transmission gear.

[0012] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0013] The motor reduction mechanism of the utility model firstly drives the driving gear to rotate after the prime motor is started, and the driving gear meshes with the transmission gear to drive the transmission gear. Since the fixed gear is fixed and cannot move, the transmission gear is guided in the opposite direction, and the rotating rod is driven to rotate as a whole through the transmission gear. During the rotation of the rotating rod, the support rod is driven to rotate synchronously. Due to the meshing of the guide gear and the output gear, the guide gear is driven synchronously by the support rod to drive the output gear to rotate, and then the output end is driven to rotate and output power through the output gear, so that the power of the prime motor is transmitted through the transmission gear and the fixed gear, the guide gear and the output gear to achieve the effect of reducing the rotation speed; therefore, when a reduction transmission with a larger transmission ratio is required, there is no need to add an additional multi-stage transmission structure, thereby reducing the friction loss in the large transmission ratio reduction process and improving the transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the split structure of the utility model.

[0017] In all the drawings, the same figure marks represent the same technical features, specifically: 1. bracket; 2. fixed gear; 3. driving gear; 4. output end; 5. output gear; 6. rotating rod; 7. support rod; 8. guide gear; 9. transmission gear; 10. prime motor; 11. limit plate; 12. limit ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] Depend on Figure 1-3 A motor reduction mechanism is provided, comprising a bracket 1, characterized in that:

[0021] A fixed gear 2 and a driving gear 3 are fixedly installed on the inner facades at both ends of the bracket 1, and an output end 4 is penetrated through the middle of the fixed gear 2 and rotatably connected. An output gear 5 is fixedly installed at one end of the output end 4, and a rotating rod 6 is rotatably provided between the output gear 5 and the driving gear 3. A support rod 7 is fixedly installed in the middle of the rotating rod 6 in a forked shape, and a guide gear 8 and a transmission gear 9 are fixedly installed in the middle and end of the support rod 7 respectively.

[0022] In a specific application scenario, after the prime mover 10 is started, it first drives the driving gear 3 to rotate, and the driving gear 3 meshes with the transmission gear 9 to drive the transmission gear 9. Since the fixed gear 2 is fixed and cannot move, it guides the transmission gear 9 in the opposite direction, and drives the rotating rod 6 to rotate as a whole through the transmission gear 9. During the rotation of the rotating rod 6, the support rod 7 is driven to rotate synchronously. Due to the meshing of the guide gear 8 and the output gear 5, the guide gear 8 drives the output gear 5 synchronously under the drive of the support rod 7 to rotate, and then drives the output end 4 to rotate and output power through the output gear 5, so that the power of the prime mover 10 is transmitted through the transmission gear 9 and the fixed gear 2, the guide gear 8 and the output gear 5 to achieve the effect of reducing the speed. The following is a further description of the practical motor reduction mechanism in combination with this application scenario.

[0023] Further, refer to Figure 1-3 A prime motor 10 is fixedly mounted on the outer surface of the bracket 1, and the prime motor 10 drives the driving gear 3 to rotate. The output end 4, the rotating rod 6, and the prime motor 10 are in the same straight line direction.

[0024] In this embodiment, the prime motor 10 outputs power through the driving gear 3, and then cooperates with the transmission between the driving gear 3 and the transmission gear 9, the transmission gear 9 and the fixed gear 2, the guide gear 8 and the output gear 5 to form power transmission and reduce speed, and the output end 4, the rotating rod 6, and the prime motor 10 are arranged in the same straight line direction, so that the support rod 7, the guide gear 8, and the transmission gear 9 always rotate around the rotating rod 6 during the transmission process, maintaining the continuity and consistency of the power transmission process, avoiding unnecessary waste and loss due to direction turning during power transmission, and maintaining power transmission efficiency.

[0025] For more details, see Figure 1-3 Both ends of the rotating rod 6 are fixedly installed with limit plates 11 and are inserted into the output gear 5 and the driving gear 3 through the limit plates 11 to maintain the rotation connection while forming a limit.

[0026] In this embodiment, by setting the limit plate 11, the rotating rod 6 can rotate between the driving gear 3 and the output gear 5, and at the same time, it can limit the driving gear 3 and the output gear 5, so as to keep the driving gear 3 and the output gear 5 stable when placed horizontally, and avoid shaking and causing instability in the power transmission process.

[0027] More preferably, referring to Figure 1-3 A limiting ring 12 is fixedly installed in the middle of the output end 4 and is inserted into the fixed gear 2 through the limiting ring 12 to maintain the rotation connection while forming a limit.

[0028] In this embodiment, by setting the limiting ring 12, the output end 4 can maintain a stable horizontal position during the process of rotating and outputting power driven by the guide gear 8 to avoid shaking and causing unstable power output of the output end 4.

[0029] More preferably, referring to Figure 1-3 The fixed gear 2, the driving gear 3, the output gear 5, the guide gear 8 and the transmission gear 9 are all bevel gears, and the transmission gear 9 is meshed with the fixed gear 2 and the driving gear 3 at the same time, and the output gear 5 and the guide gear 8 remain meshed.

[0030] In this embodiment, the transmission gear 9 is meshed with the fixed gear 2, so that in the process of the driving gear 3 driving the transmission gear 9, the transmission gear 9, due to the fixed setting of the fixed gear 2, forms a reverse guidance and drive for the transmission gear 9, and drives the rotating rod 6 as a whole to rotate through the transmission gear 9. During the rotation of the rotating rod 6, the guide gear 8 is driven to drive the output gear 5, and the output gear 5 drives the output end 4 to rotate for power output, thereby forming a stable power transmission.

[0031] Furthermore, refer to Figure 1-3 , the support rod 7 is tilted, and the guide gear 8 is parallel to the transmission gear 9.

[0032] In this embodiment, during the power transmission process, the ratio of the number of teeth between the driving gear 3, the transmission gear 9, the fixed gear 2, the guide gear 8, and the output gear 5 is the transmission ratio. By arranging the guide gear 8 and the transmission gear 9 in parallel, the transmission ratio between the guide gear 8 and the transmission gear 9 is a fixed ratio. When a reduction transmission with a larger transmission ratio is required, the transmission ratio can be improved by adjusting the size of the guide gear 8 and the transmission gear 9, thereby eliminating the need to add an additional multi-stage transmission structure, thereby avoiding friction losses generated in multiple transmissions.

[0033] Working principle:

[0034] In the motor reduction mechanism of the utility model, when the prime mover 10 drives the driving gear 3 to rotate, the driving gear 3 is meshed with the transmission gear 9 to drive the transmission gear 9, and the transmission gear 9 is meshed with the fixed gear 2 at the same time. Since the fixed gear 2 is fixed and cannot move, the transmission gear 9 is guided and driven in the reverse direction, and the rotating rod 6 is driven to rotate as a whole through the transmission gear 9. During the rotation of the rotating rod 6, the support rod 7 is driven to rotate synchronously. Due to the meshing of the guide gear 8 and the output gear 5, the guide gear 8 is driven by the support rod 7 to synchronously drive the output gear 5 to rotate, and then the output end 4 is driven to rotate and output power through the output gear 5, so that the power of the prime mover 10 is transmitted through the transmission gear 9 and the fixed gear 2, the guide gear 8 and the output gear 5 to achieve the effect of reducing the speed.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor reduction mechanism, comprising a bracket (1), characterized in that: A fixed gear (2) and a driving gear (3) are fixedly mounted on the inner facades at both ends of the bracket (1), respectively; an output end (4) is penetrated through the middle of the fixed gear (2) and is rotatably connected; an output gear (5) is fixedly mounted on one end of the output end (4); a rotating rod (6) is rotatably mounted between the output gear (5) and the driving gear (3); a support rod (7) is fixedly mounted in a forked shape in the middle of the rotating rod (6); a guide gear (8) and a transmission gear (9) are fixedly mounted in the middle and at the ends of the support rod (7), respectively.

2. The motor reduction mechanism according to claim 1, characterized in that: A prime motor (10) is fixedly mounted on the outer surface of the bracket (1), and the prime motor (10) drives the driving gear (3) to rotate. The output end (4), the rotating rod (6), and the prime motor (10) are located in the same straight line direction.

3. The motor reduction mechanism according to claim 1, characterized in that: Limiting plates (11) are fixedly mounted on both ends of the rotating rod (6) and are inserted into the output gear (5) and the driving gear (3) through the limiting plates (11) to maintain rotational connection while forming a limit.

4. The motor reduction mechanism according to claim 1, characterized in that: A limiting ring (12) is fixedly installed in the middle of the output end (4) and is inserted into the fixed gear (2) through the limiting ring (12) to maintain the rotational connection while forming a limit.

5. The motor reduction mechanism according to claim 1, characterized in that: The fixed gear (2), the driving gear (3), the output gear (5), the guide gear (8) and the transmission gear (9) are all bevel gears, and the transmission gear (9) is meshed with the fixed gear (2) and the driving gear (3) at the same time, and the output gear (5) and the guide gear (8) remain meshed.

6. The motor reduction mechanism according to claim 1, characterized in that: The support rod (7) is arranged obliquely, and the guide gear (8) is parallel to the transmission gear (9).

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