Speed reducer with flange plate anti-skid structure

Abstract

The utility model provides a speed reducer with a flange plate anti-skid structure, which is characterized in that a cavity is arranged in a fixed box, the cavity is provided with at least three communicated surfaces, a through groove comprises a first through groove, an annular enveloping worm is arranged in the first through groove, the left side and the right side of the outer diameter of the annular enveloping worm are fixedly connected with first bearing packs, and a bevel gear is arranged in a second through groove; second bearing sets are fixedly connected to the left side and the right side of the outer diameter of the bevel gear, and the annular enveloping worm is meshed with the bevel gear. The bevel gear comprises a gear shaft, the two sides of the gear shaft penetrate through the fixing plates respectively, the two ends of the gear shaft are connected with output shaft flanges respectively, anti-skid grooves are formed in the side walls, located at the two ends, of the gear shaft respectively, and anti-skid protruding blocks are arranged at the positions, opposite to the anti-skid grooves, of the output shaft flanges. The anti-skid protruding blocks are connected with the anti-skid grooves in a matched mode. Through the arrangement of the anti-skid convex blocks and the anti-skid grooves, when the output shaft flange is about to slip, the anti-skid convex blocks and the anti-skid grooves abut against each other to prevent sliding.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a reducer with a flange anti-slip structure. Background Art

[0002] The transmission mechanism refers to a device or system that transfers power from one component to another. It plays a key role in various mechanical equipment and industrial applications. Worm drive is a commonly used transmission method, which uses the meshing of the worm and the worm wheel to transmit power and motion. Worm drive has the characteristics of large transmission ratio, compact structure and smooth operation.

[0003] In the prior art, the joint transmission components of small and medium-sized robots usually need to have a compact structure. In order to save space in a compact structure, the use of components is usually reduced as much as possible. However, the reduction in components brings about the loss of structural stability. The tightness of the connection between the flange and the reducer cannot be underestimated in its influence on the stability of the overall operation of the reducer. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned technology, the utility model provides a reducer with a flange anti-skid structure, including a fixed box, a cavity is arranged in the fixed box, and the cavity is connected to at least two through grooves, the two through grooves penetrate three adjacent surfaces of the fixed box in a circumferential direction, the two through grooves include a first through groove and a second through groove, an annular envelope worm is arranged in the first through groove, the left and right sides of the outer diameter of the annular envelope worm are fixedly connected with a first bearing group, a helical gear is arranged in the second through groove, the left and right sides of the outer diameter of the helical gear are fixedly connected with a second bearing group, the annular envelope worm is meshed with the helical gear; the outer sides of the two side walls of the fixed box located at the second through groove are connected to fixed plates, the helical gear includes a gear shaft, the two sides of the gear shaft respectively penetrate the fixed plates, and the two ends are respectively connected to output shaft flanges, the side walls of the gear shaft located at the two ends are provided with anti-skid grooves, the output shaft flange is provided with anti-skid protrusions at the positions opposite to the anti-skid grooves, and the anti-skid protrusions are adaptively connected to the anti-skid grooves.

[0005] In one embodiment, the anti-slip grooves are provided in plurality and are spaced apart along the circumference of the gear shaft, and the anti-slip protrusions are provided in plurality and are arranged opposite to the anti-slip grooves.

[0006] In one embodiment, an annular spacing groove is provided between the anti-slip groove and the end surface of the gear shaft, and an external thread is provided between the annular spacing groove and the end surface of the gear shaft.

[0007] In one embodiment, a low groove is provided in the annular spacing groove at a position opposite to the anti-slip groove, and the low groove is connected to the bottom of the annular spacing groove and has a smooth transition.

[0008] In one embodiment, a through hole is opened in the middle of the output shaft flange, and the external thread of the gear shaft passes through and extends through the through hole. The through hole is provided with a flange cover nut, and the flange cover nut is threadedly connected to the external thread to lock and fix the output shaft flange on the gear shaft.

[0009] In one embodiment, a plurality of screw holes are provided around the through hole of the output shaft flange, and the flange gland nuts are connected to the screw holes by screws, so that the output shaft flange is fastened to the gear shaft.

[0010] In one embodiment, the fixing box is provided with arc structures on both sides of the output shaft flange, and the shape of the arc structure is coaxially arranged with the output shaft flange;

[0011] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model provides a reducer with a flange anti-slip structure, including a fixed box, a cavity is arranged in the fixed box, and the cavity is connected to at least two through grooves, the two through grooves penetrate three adjacent surfaces of the fixed box in a circumferential direction, the two through grooves include a first through groove and a second through groove, an annular envelope worm is arranged in the first through groove, the left and right sides of the outer diameter of the annular envelope worm are fixedly connected to the first bearing group, a helical gear is arranged in the second through groove, and the left and right sides of the outer diameter of the helical gear are fixedly connected to the second The bearing group, the annular surface enveloping the worm and meshing with the bevel gear; the fixing box is located at the outer sides of the two side walls where the second through groove is located, and the helical gear includes a gear shaft, and the two sides of the gear shaft respectively pass through the fixing plates, and the two ends are respectively connected to the output shaft flanges, and the side walls of the gear shaft located at both ends are provided with anti-slip grooves, and the output shaft flange is provided with anti-slip protrusions at the positions opposite to the anti-slip grooves, and the anti-slip protrusions are adaptively connected with the anti-slip grooves; through the setting of the anti-slip protrusions and the anti-slip grooves, when the output shaft flange is about to slip, the anti-slip protrusions and the anti-slip grooves resist each other to prevent sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0013] Figure 2 It is a three-dimensional diagram of the utility model.

[0014] Figure 3 This is a schematic diagram of the output shaft flange structure of the utility model. DETAILED DESCRIPTION

[0015] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present utility model.

[0017] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0018] In the application, the word "exemplary" is used to mean "used as an example, illustration, or description". Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the utility model. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the utility model can be implemented without using these specific details. In other examples, known structures and processes are not described in detail to avoid obscuring the description of the utility model with unnecessary details. Therefore, the utility model is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles disclosed in this application.

[0019] See also Figure 1-3The utility model is a reducer with a flange anti-slip structure, including a fixed box 7, a cavity is arranged in the fixed box 7, and the cavity is connected to at least two through grooves, the two through grooves penetrate three adjacent surfaces of the fixed box 7 in a circumferential direction, the two through grooves include a first through groove and a second through groove, a ring-enveloping worm 5 is arranged in the first through groove, and the left and right sides of the outer diameter of the ring-enveloping worm 5 are fixedly connected to the first bearing group 4, a helical gear 3 is arranged in the second through groove, and the left and right sides of the outer diameter of the helical gear 3 are fixedly connected to the second bearing group 6, and the ring-enveloping worm 5 is meshed with the helical gear 3; the fixed box 7 The outer sides of the two side walls where the second through groove is located are connected to fixed plates, the bevel gear 3 includes a gear shaft 11, the two sides of the gear shaft 11 respectively pass through the fixed plates, and the two ends are respectively connected to the output shaft flanges 9, the side walls of the gear shaft 11 at both ends are provided with anti-slip grooves 111, and the output shaft flange 9 is provided with anti-slip protrusions at the position opposite to the anti-slip grooves 111, and the anti-slip protrusions are adaptively connected to the anti-slip grooves 111; the anti-slip protrusions and the anti-slip grooves 111 are arranged so that when the output shaft flange 9 is about to slide in the circumferential direction, the anti-slip protrusions and the anti-slip grooves 111 abut against each other in the axial direction to avoid sliding.

[0020] It also includes an input component 1, which is meshed with the annular envelope worm 5 through a first gear set 2. The side wall of the fixed box 7 is connected to a motor mounting seat 8, which completely covers the input component 1, and a motor connection hole is provided at the end away from the fixed box 7.

[0021] In one embodiment, a plurality of anti-slip grooves 111 are provided and are spaced apart along the circumference of the gear shaft 11, and a plurality of anti-slip protrusions are provided and are arranged opposite to the anti-slip grooves 111; the arrangement of a plurality of anti-slip grooves 111 and anti-slip protrusions can increase the number of positions where abutment occurs, thereby further achieving an anti-slip function.

[0022] In one embodiment, an annular spacing groove 113 is provided between the anti-slip groove 111 and the end face of the gear shaft 11, and an external thread 114 is provided between the annular spacing groove 113 and the end face of the gear shaft 11; the setting of the annular spacing groove 113 makes it easier for the anti-slip protrusion to be adapted and connected with the anti-slip groove 111, and the setting of the external thread 114 enables the output shaft flange 9 to achieve the first layer of fastening installation through the spiral tightening of the flange cover nut.

[0023] In one embodiment, a low groove 112 is provided in the annular spacing groove 113 at a position opposite to the anti-slip groove 111 , and the low groove 112 is connected to the bottom of the annular spacing groove 113 and has a smooth transition; the low groove 112 can guide the anti-slip protrusion to enter the annular spacing groove 113 along the low groove 112 .

[0024] In one embodiment, a through hole is opened in the middle of the output shaft flange 9, and the external thread 114 of the gear shaft 11 passes through and extends through the through hole. The through hole is provided with a flange cover nut 10, and the flange cover nut 10 is threadedly connected with the external thread 114 to lock and fix the output shaft flange 9 on the gear shaft 11.

[0025] In one embodiment, a plurality of screw holes are arranged around the through hole of the output shaft flange 9 , and the flange gland nuts 10 are connected to the screw holes by screws, so that the output shaft flange 9 is fastened to the gear shaft 11 .

[0026] In one embodiment, the fixed box 7 is provided with arc structures on both sides of the output shaft flange 9, and the shape of the arc structure is coaxially arranged with the output shaft flange 9; the setting of the arc structure can make the structure of the fixed box 7 more compact and can better avoid interference between the reducer and other parts during use.

[0027] The advantages of the utility model are:

[0028] By providing the anti-skid protrusions and the anti-skid grooves, when the output shaft flange is about to slip, the anti-skid protrusions and the anti-skid grooves abut against each other to prevent slipping.

[0029] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A reducer with a flange anti-slip structure, characterized in that: The invention comprises a fixing box, wherein a cavity is arranged in the fixing box, and the cavity is connected to at least two through grooves, the two through grooves penetrate three adjacent surfaces of the fixing box in a circumferential direction, the two through grooves comprise a first through groove and a second through groove, an annular envelope worm is arranged in the first through groove, a first bearing group is fixedly connected to the left and right sides of the outer diameter of the annular envelope worm, a helical gear is arranged in the second through groove, a second bearing group is fixedly connected to the left and right sides of the outer diameter of the helical gear, the annular envelope worm is meshed with the helical gear; the outer sides of the two side walls of the fixing box where the second through groove is located are connected to fixing plates, the helical gear comprises a gear shaft, the two sides of the gear shaft respectively penetrate the fixing plates, and the two ends are respectively connected to output shaft flanges, the side walls of the gear shaft at the two ends are provided with anti-slip grooves, the output shaft flange is provided with anti-slip protrusions at the positions opposite to the anti-slip grooves, and the anti-slip protrusions are adaptively connected to the anti-slip grooves.

2. The reducer with flange anti-slip structure according to claim 1, characterized in that: There are a plurality of anti-skid grooves, which are arranged at intervals along the circumference of the gear shaft. There are a plurality of anti-skid protrusions, which are arranged opposite to the anti-skid grooves.

3. The reducer with flange anti-slip structure according to claim 2, characterized in that: An annular spacing groove is provided between the anti-slip groove and the end surface of the gear shaft, and an external thread is provided between the annular spacing groove and the end surface of the gear shaft.

4. The reducer with flange anti-slip structure according to claim 3, characterized in that: A low groove is provided in the annular spacing groove at a position opposite to the anti-slip groove, and the low groove is connected to the bottom of the annular spacing groove and has a smooth transition.

5. The reducer with flange anti-slip structure according to claim 3, characterized in that: A through hole is opened in the middle of the output shaft flange, and the external thread of the gear shaft passes through and extends through the through hole. The through hole is provided with a flange gland nut, and the flange gland nut is threadedly connected with the external thread to lock and fix the output shaft flange on the gear shaft.

6. The reducer with flange anti-slip structure according to claim 5, characterized in that: A plurality of screw holes are arranged around the through hole of the output shaft flange, and the flange gland nuts are connected with the screw holes by screws, so that the output shaft flange is fastened to the gear shaft.

7. The reducer with flange anti-slip structure according to claim 1, characterized in that: The fixing box is provided with arc structures on both sides of the output shaft flange, and the shape of the arc structure is coaxially arranged with the output shaft flange.

Images