Mute bevel gear transmission assembly

By incorporating a gear chamber and filter structure within the bevel gear set, lubricating oil filtration and impurity removal are achieved, solving the problem of increased noise after prolonged use of lubricating oil and maintaining low noise and good heat dissipation.

CN223498625UActive Publication Date: 2025-10-31TIANJIN LVZHENGZHIHE MASCH MFG CO LTD
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Patent Information

Application Number
CN202422655819.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-10-31
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

In existing technologies, after prolonged use, impurities will be mixed into the lubricating oil of bevel gear sets, resulting in decreased lubrication effect and increased noise. Furthermore, traditional sealing cover structures are difficult to balance between noise reduction and heat dissipation.

Method used

A silent bevel gear transmission assembly was designed. It is installed in a sealed manner by setting up a gear compartment and injecting lubricating oil into the compartment. The compartment is divided by a sealing plate, and a pump structure and a filter structure are set on the sealing plate to achieve the filtration of lubricating oil and the removal of impurities.

Benefits of technology

It effectively reduces the operating noise of the bevel gear set, maintains the normal performance of the lubricating oil, solves the problem of increased noise after prolonged use of the lubricating oil, and maintains good heat dissipation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of transmission bevel gear assemblies, in particular to a mute bevel gear transmission assembly, which is characterized in that an input shaft movably penetrates through a front side plate of a gear cabin, an output shaft movably penetrates through a left side plate of the gear cabin, a sealing plate is arranged in the gear cabin, and a connecting sleeve penetrates through and is fixed on a right side plate of the sealing plate; the reciprocating piston is movably inserted into a left port of the sealing sleeve, a communicating hole is formed in the reciprocating piston, the one-way valve unit is fixedly embedded into the communicating hole in the reciprocating piston, and the filter element is fixedly arranged on a right side plate of the sealing plate in a penetrating manner; according to the bevel gear set system, the sealing plate is arranged in the gear cabin, the gear cabin is divided into the two independent cabins, and the corresponding pump structure and the filtering structure are arranged on the sealing plate, so that impurities in lubricating oil are filtered and removed when the bevel gear set system works, the normal performance of the lubricating oil is kept, and low noise is kept when the structure works.
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Description

Technical Field

[0001] This utility model relates to the technical field of transmission bevel gear assemblies, specifically to a silent bevel gear transmission assembly. Background Technology

[0002] The bevel gear set structure converts rotational kinetic energy along one axis into output energy. During operation, the meshing of the two gears generates friction, resulting in significant noise. Traditional noise reduction methods for bevel gear sets often employ a sound-insulating sealed cover. However, in practice, increasing the cover's thickness reduces heat dissipation, while decreasing its thickness reduces noise reduction. Current gear systems use lubricating oil to reduce tooth-to-tooth friction and noise. However, over time, the lubricating oil becomes viscous due to impurities, reducing lubrication and increasing noise. Therefore, this plan proposes using lubricating oil in the bevel gear transmission structure for noise reduction while also addressing the issue of increased noise after prolonged use. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a silent bevel gear transmission assembly. This assembly seals the input and output bevel gear units within a gear compartment, allowing lubricating oil to be injected into the compartment to assist in noise reduction and lubrication. A sealing plate further divides the gear compartment into two independent chambers. Corresponding pump and filter structures are installed on the sealing plate to filter and remove impurities from the lubricating oil during operation, thus maintaining the normal performance of the lubricating oil and ensuring low noise during operation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] It includes an input shaft and an output shaft, wherein an input bevel gear unit is fixedly mounted on the input shaft, and an output bevel gear unit is fixedly mounted on the output shaft. The input bevel gear unit and the output bevel gear unit are connected in a driving manner. It also includes:

[0006] The gear compartment has an input shaft that movably passes through the front side plate and an output shaft that movably passes through the left side plate. Both the input bevel gear unit and the output bevel gear unit are located inside the gear compartment.

[0007] A sealing plate is provided inside the gear compartment and is located on the left side of the input shaft. The output shaft is screwed onto the sealing plate through a sealing bearing. The rear end side of the sealing plate is fixedly located on the rear inner side wall of the gear compartment, the left end side of the sealing plate is fixedly located on the left inner side wall of the gear compartment, and the upper and lower sides of the sealing plate are respectively fixedly located on the upper and lower inner walls of the gear compartment.

[0008] A connecting sleeve is inserted and fixed to the right side plate of the sealing plate;

[0009] A reciprocating plug is movably inserted into the left port of the sealing sleeve. The reciprocating plug has a connecting hole inside. The right port of the connecting hole is connected to the right end hole of the connecting sleeve, and the left port of the connecting hole is located to the left of the left port of the connecting sleeve.

[0010] A one-way valve unit is embedded and fixed in a connecting hole on a reciprocating piston, and the one-way valve unit is configured to pass through the left port of the connecting hole to the right port of the connecting hole.

[0011] The filter element is inserted and fixed on the right side plate of the sealing plate.

[0012] Preferably, the filter element is located behind the connecting sleeve, the output shaft is located between the connecting sleeve and the filter element, and guide plates are fixedly installed on both the left and right ends of the filter element, with the guide plates opening forward.

[0013] Preferably, a crankshaft is connected to the front side plate of the sealing plate through a sealing bearing, and the crank of the crankshaft is located behind the front side plate of the connecting plate. A connecting frame is fixedly provided on the left end of the reciprocating piston. The connecting frame has an oblong hole. A guide pin is fixedly provided on the crank end of the crankshaft and is movably inserted into the oblong hole.

[0014] Preferably, a drive shaft is spun onto the front inner wall of the gear compartment via a bearing, and the drive shaft is located in front of the front side plate of the sealing plate. The input shaft and the drive shaft are connected by a reduction gear set, and the drive shaft and the crankshaft are connected by a reduction gear set.

[0015] Preferably, a distributor is fixedly fitted onto the right port of the connecting sleeve, wherein the rear port of the distributor faces the input bevel gear unit, and the front port of the distributor faces the reduction gear set between the input shaft and the transmission shaft.

[0016] Preferably, the front and left side plates of the gear compartment are fitted with sound-absorbing bearings, the input shaft is screwed onto the front sound-absorbing bearing via a sealed bearing, and the output shaft is screwed onto the left sound-absorbing bearing via a sealed bearing.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] It seals and installs the input bevel gear unit and the output bevel gear unit by setting up a gear compartment, thereby injecting lubricating oil into the gear compartment to assist in noise reduction and lubrication. In addition, a sealing plate is set in the gear compartment to divide the gear compartment into two independent chambers. The sealing plate is equipped with corresponding pump structure and filter structure to filter and remove impurities in the lubricating oil when the bevel gear set system is working, so as to maintain the normal performance of the lubricating oil and maintain the low noise of the structure during operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the input bevel gear unit and the output bevel gear unit in this utility model.

[0021] Figure 3 This is a schematic diagram of the gear compartment and sealing plate in this utility model.

[0022] Figure 4 This is a structural schematic diagram of the connecting sleeve, input shaft, connecting shaft, and crankshaft in this utility model.

[0023] Figure 5 This is a structural schematic diagram of the reciprocating piston and connecting frame in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] Input shaft 1, output shaft 2, input bevel gear unit 3, output bevel gear unit 4, gear compartment 5, sealing plate 6, connecting sleeve 7, reciprocating piston 8, connecting hole 9, one-way valve unit 10, filter element 11, guide plate 12, crankshaft 13, connecting bracket 14, waist-shaped hole 15, guide pin 16, drive shaft 17, distributor 18, silencer bearing 19. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] like Figure 1-5 As shown, the specific implementation adopts the following technical solution:

[0028] It includes an input shaft 1 and an output shaft 2, wherein an input bevel gear unit 3 is fixedly mounted on the input shaft 1, and an output bevel gear unit 4 is fixedly mounted on the output shaft 2. The input bevel gear unit 3 and the output bevel gear unit 4 are connected in a transmission manner. It also includes:

[0029] The gear compartment 5 has an input shaft 1 that is movably mounted on the front side plate of the gear compartment 5, and an output shaft 2 that is movably mounted on the left side plate of the gear compartment 5. The input bevel gear unit 3 and the output bevel gear unit 4 are both located inside the gear compartment 5.

[0030] The sealing plate 6 is disposed inside the gear compartment 5 and is disposed to the left side of the input shaft 1. The output shaft 2 is screwed onto the sealing plate 6 through a sealing bearing. The rear end side of the sealing plate 6 is fixedly disposed on the rear inner side wall of the gear compartment 5, the left end side of the sealing plate 6 is fixedly disposed on the left inner side wall of the gear compartment 5, and the upper and lower sides of the sealing plate 6 are respectively fixedly disposed on the upper and lower inner walls of the gear compartment 5.

[0031] Connecting sleeve 7, which is inserted and fixed on the right side plate of sealing plate 6;

[0032] The reciprocating plug 8 is movably inserted into the left port of the sealing sleeve. The reciprocating plug 8 has a connecting hole 9 inside. The right port of the connecting hole 9 is connected to the right end hole of the connecting sleeve 7. The left port of the connecting hole 9 is located to the left of the left port of the connecting sleeve 7.

[0033] One-way valve unit 10, wherein the one-way valve unit 10 is embedded and fixed in the connecting hole 9 on the reciprocating piston 8, and the one-way valve unit 10 is configured to pass through the left port of the connecting hole 9 to the right port of the connecting hole 9.

[0034] The filter element 11 is inserted and fixed on the right side plate of the sealing plate 6. The filter element 11 is located behind the connecting sleeve 7. The output shaft 2 is located between the connecting sleeve 7 and the filter element 11.

[0035] Two guide plates 12 are respectively sleeved on the two ends of the filter element 11, and the ends of the guide plates 12 are facing forward.

[0036] The crankshaft 13 is screwed onto the front side plate of the sealing plate 6 via a bearing, and the crank end of the crankshaft 13 is located behind the front side plate of the sealing plate 6.

[0037] Guide pin 16, the guide pin 16 is fixedly mounted on the crank of crankshaft 13;

[0038] The connecting frame 14 is fixedly installed on the left end of the reciprocating piston 8, and the connecting frame 14 is integrally formed with an oblong hole, and the guide pin 16 is movably inserted into the oblong hole 15.

[0039] The drive shaft 17 is spun onto the front inner wall of the gear compartment 5 via bearings, and is located in front of the front side plate of the sealing plate 6. The input shaft 1 and the drive shaft 17 are connected by a reduction gear set, and the drive shaft 17 and the crankshaft 13 are connected by a reduction gear set.

[0040] The splitter 18 is sleeved and fixed on the right port of the connecting sleeve 7. The rear port of the splitter 18 faces the input bevel gear unit 3, and the front port of the splitter 18 faces the reduction gear set between the input shaft 1 and the transmission shaft 17.

[0041] The sound-absorbing bearing 19 consists of two parts. One sound-absorbing bearing 19 is fixed to the front side plate of the gear compartment 5, and the input shaft 1 is screwed onto the front sound-absorbing bearing 19 via a sealed bearing. The other sound-absorbing bearing 19 is fixed to the left side plate of the gear compartment 5, and the output shaft 2 is screwed onto the left sound-absorbing bearing 19 via a sealed bearing.

[0042] When using this device, power is input through input shaft 1, and after transmission through input bevel gear unit 3 and output bevel gear unit 4, power is output through output shaft 2. The reduction gear set between input bevel gear unit 3, output bevel gear unit 4, input shaft 1, transmission shaft 17, and crankshaft 13 rotates on the same side of the partition in gear compartment 5. Input shaft 1 drives transmission shaft 17 to rotate through reduction gear set, and transmission shaft 17 drives crankshaft 13 to rotate through reduction gear set. Guide pin 16 on crank of crankshaft 13 pulls connecting bracket 14 to move left and right, and guide pin 16 slides up and down in waist-shaped hole 15 on connecting bracket 14. Connecting bracket 14 pulls reciprocating piston 8 to move left and right. When the reciprocating piston 8 moves to the left, the lubricating oil on the left side of the sealing plate 6 enters the connecting sleeve 7 through the connecting hole 9 on the reciprocating piston 8 and the one-way valve unit 10. When the reciprocating piston 8 moves to the right, the reciprocating piston 8 pushes out the lubricating oil in the connecting sleeve 7 and sprays the lubricating oil to the front and rear sides through the distributor 18, so that the lubricating oil is sprayed onto the input bevel gear unit and the reduction gear set of the input shaft 1 respectively. When the reciprocating piston 8 pushes the lubricating oil out of the connecting sleeve 7, the lubricating oil on the right side of the sealing plate 6 increases, thereby pushing the lubricating oil on the right side of the sealing plate 6 through the filter element 11 into the left side of the sealing plate 6. The lubricating oil is filtered when it passes through the filter element 11.

[0043] Compared with the prior art, the beneficial effects of this utility model are:

[0044] 1. To address the noise generated by friction during the rotation of the gear structure, a gear compartment 5 is provided. The bevel gear structure is installed inside the gear compartment 5, and lubricating oil is injected into the gear compartment 5. The lubricating oil reduces the friction of the gear structure during rotation, thereby reducing the noise during gear operation.

[0045] 2. In this device, the gear compartment 5 is divided into two independent compartments by a partition. A connecting sleeve 7 and a filter element 11 are installed on the sealing plate 6. A reciprocating plug 8 with a one-way flow structure is set in the connecting sleeve 7. The reciprocating motion of the reciprocating plug 8 realizes the one-way pushing of the lubricating oil on one side of the sealing plate 6 to the other side of the sealing plate 6. The filter element 11 realizes the continuous flow of the lubricating oil and filters the lubricating oil, removes impurities generated in the lubricating oil, and reduces the noise caused by excessive impurities in the lubricating oil.

[0046] 3. This device is based on the input shaft 1 and is equipped with a transmission shaft 17. The transmission is achieved through a multi-stage reduction gear, which drives the crankshaft 13 to rotate. The crankshaft 13 then drives the reciprocating piston 8 through the guide pin 16 and the connecting frame 14, thereby enabling the input shaft 1 to provide power to drive the reciprocating piston 8 to work.

[0047] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A silent bevel gear transmission assembly, comprising an input shaft (1) and an output shaft (2), wherein an input bevel gear unit (3) is fixedly mounted on the input shaft (1), and an output bevel gear unit (4) is fixedly mounted on the output shaft (2), the input bevel gear unit (3) and the output bevel gear unit (4) being connected in a transmission manner; characterized in that, It also includes: The gear compartment (5) has an input shaft (1) that is movably mounted on the front side plate of the gear compartment (5) and an output shaft (2) that is movably mounted on the left side plate of the gear compartment (5). The input bevel gear unit (3) and the output bevel gear unit (4) are both located inside the gear compartment (5). A sealing plate (6) is provided inside the gear compartment (5) and is located on the left side of the input shaft (1). The output shaft (2) is screwed onto the sealing plate (6) through a sealing bearing. The rear end side of the sealing plate (6) is fixedly provided on the rear inner side wall of the gear compartment (5). The left end side of the sealing plate (6) is fixedly provided on the left inner side wall of the gear compartment (5). The upper and lower sides of the sealing plate (6) are respectively fixedly provided on the upper and lower inner walls of the gear compartment (5). Connecting sleeve (7), which is inserted and fixed on the right side plate of sealing plate (6); Reciprocating plug (8) is movably inserted into the left port of the sealing sleeve. The reciprocating plug (8) has a connecting hole (9) inside. The right port of the connecting hole (9) is connected to the right end hole of the connecting sleeve (7). The left port of the connecting hole (9) is located to the left of the left port of the connecting sleeve (7). One-way valve unit (10), wherein the one-way valve unit (10) is embedded in the connecting hole (9) fixed on the reciprocating piston (8), and the one-way valve unit (10) is provided to pass through the left port of the connecting hole (9) to the right port of the connecting hole (9); The filter element (11) is inserted and fixed on the right side plate of the sealing plate (6).

2. The silent bevel gear transmission assembly according to claim 1, characterized in that: The filter element (11) is located behind the connecting sleeve (7), and the output shaft (2) is located between the connecting sleeve (7) and the filter element (11). A guide plate (12) is fixedly installed on both the left and right ends of the filter element (11), and the guide plate (12) is open to the front.

3. A silent bevel gear transmission assembly according to claim 2, characterized in that: A crankshaft (13) is connected to the front side plate of the sealing plate (6) through a sealing bearing, and the crank of the crankshaft (13) is located behind the front side plate of the connecting plate. A connecting frame (14) is fixedly installed on the left end of the reciprocating piston (8). A waist-shaped hole (15) is opened on the connecting frame (14). A guide pin (16) is fixedly installed on the crank end of the crankshaft (13). The guide pin (16) is movably inserted into the waist-shaped hole.

4. A silent bevel gear transmission assembly according to claim 3, characterized in that: A drive shaft (17) is spun on the front inner wall of the gear compartment (5) via a bearing, and the drive shaft (17) is located in front of the front side plate of the sealing plate (6). The input shaft (1) and the drive shaft (17) are connected by a reduction gear set, and the drive shaft (17) and the crankshaft (13) are connected by a reduction gear set.

5. A silent bevel gear transmission assembly according to claim 4, characterized in that: A splitter (18) is fixedly fitted on the right port of the connecting sleeve (7), wherein the rear port of the splitter (18) faces the input bevel gear unit (3), and the front port of the splitter (18) faces the reduction gear set between the input shaft (1) and the transmission shaft (17).

6. A silent bevel gear transmission assembly according to claim 5, characterized in that: The gear compartment (5) has sound-absorbing bearings (19) fixed on both the front and left sides. The input shaft (1) is screwed onto the sound-absorbing bearing (19) on the front side through a sealed bearing, and the output shaft (2) is screwed onto the sound-absorbing bearing (19) on the left side through a sealed bearing.