A helical gear reducer with vibration reduction and noise reduction structure

Abstract

This utility model relates to the field of speed reducer technology, and more particularly to a helical gear reducer with a vibration damping and noise reduction structure. It includes: a speed reducer housing, a speed reducer housing cover, a vibration damping component inside the speed reducer housing, a meshing cavity on the vibration damping component, and a self-lubricating component inside the speed reducer housing cover. This utility model, by incorporating the vibration damping component and the combined use of the piston rod, piston one, and oil reservoir, utilizes the damping characteristics of the oil to effectively absorb and disperse vibration energy. Combined with the elastic buffering effect of the vibration damping spring, this dual vibration damping mechanism significantly reduces the vibration amplitude of the helical gear reducer during operation, extending its service life. Furthermore, by incorporating the self-lubricating component, the motor drives the sector gear to rotate, which in turn drives the moving frame to perform reciprocating linear motion, stably driving the reciprocating rod and sealing plug, thus achieving a quantitative supply of lubricating oil.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a helical gear speed reducer with a vibration reduction and noise reduction structure. Background Technology

[0002] Helical gear reducers are power transmission devices that use helical gear meshing to reduce speed and increase torque. Through the interaction between gears, they convert the high-speed rotation of power sources such as motors into low-speed, high-torque output and are widely used in various mechanical equipment.

[0003] However, during the operation of traditional helical gear reducers, the vibrations generated during gear meshing cannot be properly buffered and dispersed, resulting in large vibration amplitudes. This not only affects the overall stability and reliability of the reducer's operation but also accelerates the wear of internal gears and other components, shortening their service life. Furthermore, most traditional helical gear reducers lack automatic lubrication functions, failing to ensure that the gears in the meshing cavity are always well lubricated. This leads to increased friction and wear between gears, resulting in higher operating noise. Utility Model Content

[0004] The purpose of this invention is to provide a helical gear reducer with a vibration reduction and noise reduction structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a reducer housing, a reducer housing cover is provided on the reducer housing, a shock-absorbing component is provided inside the reducer housing, a meshing cavity is provided on the shock-absorbing component, and a self-lubricating component is provided inside the reducer housing cover.

[0006] As a preferred embodiment of this utility model, the shock absorption assembly includes a pair of large U-shaped frames symmetrically arranged inside the reducer housing. Each of the two large U-shaped frames contains a small U-shaped frame. Guide posts are provided on the top of both sides of the small U-shaped frames. Guide sleeves are provided on the top surface of the large U-shaped frames at positions corresponding to the guide posts. The support feet at the bottom of the meshing cavity are connected to the small U-shaped frames.

[0007] As a preferred embodiment of this utility model, a pair of piston rods are symmetrically arranged on both sides of the bottom of the large U-shaped frame, and a piston is provided at the top of each of the two piston rods. An oil storage cylinder is provided on both sides of the small U-shaped frame corresponding to the position of the piston rod. The piston on the same side is slidably arranged in the oil storage cylinder, and a shock-absorbing spring is provided between the piston rod on the same side and the oil storage cylinder.

[0008] As a preferred embodiment of this utility model, the self-lubricating component includes a mounting plate disposed within the reducer housing. A motor is disposed on one side of the mounting plate, and a sector gear is disposed on the transmission end of the motor. A pair of slide rails are disposed on the side of the mounting plate away from the motor. A slider is disposed on each of the two slide rails, and a movable frame is disposed on each of the two sliders. Racks that mesh with the sector gear are disposed on both the upper and lower sides of the movable frame.

[0009] As a preferred embodiment of this utility model, a lubricating oil storage tank is provided on the reducer box cover on one side of the mounting plate, an oil outlet pipe is provided on one side of the lubricating oil storage tank, and the end of the oil outlet pipe away from the lubricating oil storage tank is connected to the meshing cavity. A reciprocating rod is provided on one side of the moving frame, and a sealing plug corresponding to the oil outlet of the lubricating oil storage tank is provided at one end of the reciprocating rod.

[0010] As a preferred embodiment of this utility model, both the gearbox housing and the inner wall of the gearbox cover are provided with asphalt damping sound insulation plates.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: 1. This utility model, by setting up a shock-absorbing component, with the large U-shaped frame and the small U-shaped frame working together with guide columns and guide sleeves, can accurately guide the movement direction of the small U-shaped frame, ensuring structural stability during the shock absorption process, avoiding swaying or deviation, and guaranteeing the shock absorption effect. Secondly, the combined use of the piston rod, piston one and oil reservoir, utilizing the damping characteristics of the oil, can effectively absorb and disperse vibration energy. Combined with the elastic buffering effect of the shock-absorbing spring, the dual shock absorption mechanism can significantly reduce the vibration amplitude of the helical gear reducer during operation, extend the service life of internal gears and other components, and improve the overall smoothness and reliability of the helical gear reducer.

[0012] 2. This utility model incorporates a self-lubricating component. The motor drives the sector gear to rotate, and the sector gear sequentially meshes with the racks on the upper and lower sides of the moving frame to transmit power, thereby driving the moving frame to perform reciprocating linear motion. This can stably drive the reciprocating rod and sealing plug to move, achieving a quantitative supply of lubricating oil. This ensures that the helical gears in the meshing cavity are always well lubricated, reducing friction and wear between gears and lowering noise. At the same time, the automatic lubrication method eliminates the need for frequent manual operation, reducing maintenance costs and labor intensity, and improving the automation level and efficiency of the helical gear reducer. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall internal structure of this utility model; Figure 3 This is a schematic diagram of the shock absorption component structure of this utility model; Figure 4 This is a schematic diagram of the self-lubricating component structure of this utility model; Figure 5 This is a schematic diagram of the sector gear structure in the self-lubricating component of this utility model.

[0014] Reference numerals in the attached drawings: 1. Gearbox housing; 2. Gearbox cover; 3. Shock absorber assembly; 31. Large U-shaped frame; 32. Small U-shaped frame; 33. Shock absorber spring; 34. Piston rod; 35. Piston 1; 36. Oil reservoir; 37. Guide column; 38. Guide sleeve; 4. Meshing chamber; 5. Self-lubricating assembly; 51. Mounting plate; 52. Motor; 53. Sector gear; 54. Slide rail; 55. Slider; 56. Moving frame; 57. Rack; 58. Lubricating oil storage tank; 59. Oil outlet pipe; 510. Reciprocating rod; 511. Sealing plug; 6. Asphalt damping sound insulation plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0016] like Figures 1-5 As shown, the present invention proposes a helical gear reducer with a shock absorption and noise reduction structure, which includes a reducer housing 1, a reducer housing cover 2 on the reducer housing 1, a shock absorption component 3 inside the reducer housing 1, a meshing cavity 4 on the shock absorption component 3, and a self-lubricating component 5 inside the reducer housing cover 2.

[0017] The shock absorption assembly 3 includes a pair of large U-shaped frames 31 symmetrically arranged inside the reducer housing 1. The large U-shaped frames 31 provide the mounting base for other components in the shock absorption assembly 3. Each of the two large U-shaped frames 31 is equipped with a small U-shaped frame 32. The small U-shaped frame 32 carries the meshing cavity 4 and achieves the shock absorption function by cooperating with the large U-shaped frames 31. Guide posts 37 are provided on the top of both sides of the small U-shaped frame 32. Guide sleeves 38 are provided on the top surface of the large U-shaped frame 31 at the positions corresponding to the guide posts 37. The cooperation between the guide posts 37 and the guide sleeves 38 ensures the stability of the small U-shaped frame 32 when it moves up and down. The support feet at the bottom of the meshing cavity 4 are connected to the small U-shaped frame 32.

[0018] A pair of piston rods 34 are symmetrically arranged on both sides of the bottom of the large U-shaped frame 31. A piston 35 is provided on the top of each piston rod 34. The piston rods 34 and piston 35 slide in the oil reservoir 36, and generate damping force with the hydraulic oil in the oil reservoir 36, thereby further achieving shock absorption with the shock-absorbing spring 33. Oil reservoirs 36 are provided on both sides of the small U-shaped frame 32 at the positions corresponding to the piston rods 34. The piston 35 on the same side slides in the oil reservoir 36. The oil reservoir 36 is used to store hydraulic oil. A shock-absorbing spring 33 is provided between the piston rod 34 and the oil reservoir 36 on the same side. The shock-absorbing spring 33 not only provides elastic force between the piston rod 34 and the oil reservoir 36, but also effectively absorbs the vibration generated by the operation of the helical gear in the meshing cavity 4, achieving a preliminary shock absorption effect.

[0019] The self-lubricating component 5 includes a mounting plate 51 disposed inside the reducer housing 1. The mounting plate 51 provides a mounting base for other components in the self-lubricating component 5. A motor 52 is disposed on one side of the mounting plate 51. A sector gear 53 is disposed on the transmission end of the motor 52. The motor 52 provides rotational power to the sector gear 53. A pair of slide rails 54 are disposed on the side of the mounting plate 51 away from the motor 52. A slider 55 is disposed on each of the two slide rails 54. A movable frame 56 is disposed on each of the two sliders 55. The combination of the sliders 55 and the slide rails 54 can ensure the stability of the movable frame 56 when it performs horizontal reciprocating motion. Racks 57 that mesh with the sector gear 53 are disposed on the upper and lower sides of the movable frame 56. The sector gear 53 meshes with the racks 57 on the upper and lower sides of the movable frame 56 in sequence, converting the rotational motion of the sector gear 53 into the reciprocating linear motion of the movable frame 56.

[0020] A lubricating oil storage tank 58 is provided on the reducer housing cover 2 on one side of the mounting plate 51. The lubricating oil storage tank 58 stores lubricating oil to provide lubrication for the helical gear in the meshing cavity 4. An oil outlet pipe 59 is provided on one side of the lubricating oil storage tank 58. The end of the oil outlet pipe 59 away from the lubricating oil storage tank 58 is connected to the meshing cavity 4. The oil outlet pipe 59 delivers the lubricating oil in the lubricating oil storage tank 58 to the meshing cavity 4. A reciprocating rod 510 is provided on one side of the moving frame 56. The reciprocating rod 510 moves with the moving frame 56, thereby driving the sealing plug 511 to move. A sealing plug 511 corresponding to the oil outlet of the lubricating oil storage tank 58 is provided at one end of the reciprocating rod 510. The sealing plug 511 controls the opening and closing of the oil outlet of the lubricating oil storage tank 58 through reciprocating motion to realize the quantitative supply of lubricating oil.

[0021] The inner walls of both the reducer housing 1 and the reducer housing cover 2 are provided with asphalt damping sound insulation plates 6. The asphalt damping sound insulation plates 6 absorb and block the noise generated during the operation of the helical gear reducer, thus playing a noise reduction role.

[0022] Working principle: When the helical gear reducer is running, the helical gears mesh and transmit power in the meshing chamber 4. The resulting vibration is transmitted to the small U-shaped frame 32 through the support foot at the bottom of the meshing chamber 4. The small U-shaped frame 32 moves up and down in the large U-shaped frame 31 under the guidance of the guide post 37 and the guide sleeve 38, compressing or stretching the damping spring 33. The damping spring 33 absorbs the impact force generated by the vibration, and at the same time drives the piston rod 34 and piston 35 to slide in the oil reservoir 36. The piston 35 divides the space in the oil reservoir 36 into two chambers. The hydraulic oil in the oil reservoir 36 will repeatedly flow from one chamber to another through different small holes on the piston 35. The friction between the hole wall and the hydraulic oil and the internal friction between the hydraulic oil molecules will hinder the flow of hydraulic oil, thereby generating a damping force, slowing down the rebound speed of the damping spring 33, ensuring the stability of the meshing chamber 4, and further realizing the damping effect.

[0023] At the same time, the motor 52 in the self-lubricating component 5 starts, and the motor 52 drives the sector gear 53 to rotate. During the rotation, the sector gear 53 meshes with the racks 57 on the upper and lower sides of the moving frame 56, causing the moving frame 56 to reciprocate linearly on the slide rail 54. The moving frame 56 drives the reciprocating rod 510 to move, and the sealing plug 511 at one end of the reciprocating rod 510 moves accordingly, periodically opening and closing the oil outlet of the lubricating oil storage tank 58, and delivering the lubricating oil to the meshing chamber 4 through the oil outlet pipe 59 to provide lubrication for the helical gear and reduce noise. In addition, the asphalt damping sound insulation plate 6 on the inner wall of the reducer housing 1 and the reducer housing cover 2 absorbs and blocks the noise generated during the operation of the helical gear reducer, further reducing noise and ensuring the stable and quiet operation of the helical gear reducer.

[0024] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A helical gear speed reducer having a shock absorbing and noise reducing structure, comprising: A reducer housing (1) is provided with a reducer housing cover (2), characterized in that: a shock-absorbing component (3) is provided inside the reducer housing (1), a meshing cavity (4) is provided on the shock-absorbing component (3), and a self-lubricating component (5) is provided inside the reducer housing cover (2).

2. The helical gear reducer with a vibration damping and noise reduction structure according to claim 1, characterized in that: The shock absorption assembly (3) includes a pair of large U-shaped frames (31) symmetrically arranged in the gearbox housing (1). Each of the two large U-shaped frames (31) is provided with a small U-shaped frame (32). The top of each side of the small U-shaped frame (32) is provided with a guide post (37). The top surface of the large U-shaped frame (31) is provided with a guide sleeve (38) corresponding to the guide post (37). The support foot at the bottom of the meshing cavity (4) is connected to the small U-shaped frame (32).

3. A helical gear reducer with a vibration damping and noise reduction structure according to claim 2, characterized in that: A pair of piston rods (34) are symmetrically arranged on both sides of the bottom of the large U-shaped frame (31). A piston (35) is provided on the top of each of the two piston rods (34). An oil reservoir (36) is provided on both sides of the small U-shaped frame (32) corresponding to the position of the piston rod (34). The piston (35) on the same side is slidably arranged in the oil reservoir (36). A shock-absorbing spring (33) is provided between the piston rod (34) on the same side and the oil reservoir (36).

4. The helical gear speed reducer with a shock-absorbing and noise-reducing structure according to claim 3, characterized in that: The self-lubricating component (5) includes a mounting plate (51) disposed in the reducer housing (1). A motor (52) is disposed on one side of the mounting plate (51). A sector gear (53) is disposed on the transmission end of the motor (52). A pair of slide rails (54) are disposed on the side of the mounting plate (51) away from the motor (52). A slider (55) is disposed on each of the two slide rails (54). A movable frame (56) is disposed on each of the two sliders (55). A rack (57) that meshes with the sector gear (53) is disposed on both the upper and lower sides of the movable frame (56).

5. The helical gear speed reducer with a shock-absorbing and noise-reducing structure according to claim 4, characterized in that: A lubricating oil storage tank (58) is provided on the gearbox cover (2) on one side of the mounting plate (51). An oil outlet pipe (59) is provided on one side of the lubricating oil storage tank (58). The end of the oil outlet pipe (59) away from the lubricating oil storage tank (58) is connected to the meshing cavity (4). A reciprocating rod (510) is provided on one side of the moving frame (56). A sealing plug (511) corresponding to the oil outlet of the lubricating oil storage tank (58) is provided at one end of the reciprocating rod (510).

6. A helical gear reducer with a vibration damping and noise reduction structure according to claim 5, characterized in that: The inner walls of both the reducer housing (1) and the reducer housing cover (2) are provided with asphalt damping sound insulation plates (6).

Images