Durable worm gear speed reducer with high connection strength

Abstract

The utility model discloses a durable worm-gear speed reducer with high connection strength, which relates to the field of worm-gear speed reducer application and comprises a worm, a worm gear and a shell, a movable rod is movably mounted in the shell, a spring is sleeved outside the movable rod, a piston cylinder is arranged in the shell, a piston head is movably mounted in the piston cylinder, and the piston head is sleeved outside the piston rod. The top of the piston head is connected with the movable rod, and the piston cylinder communicates with the shell through an oil inlet pipeline and an oil outlet pipeline. By arranging the piston head and the piston cylinder, lubricating oil in the shell can flow circularly, when the piston head moves upwards, the lubricating oil in the shell can enter the piston cylinder in a one-way mode through the oil inlet pipeline, and when the piston head moves downwards, the lubricating oil in the piston cylinder can enter the oil discharge pipeline in a one-way mode. In other words, the lubricating oil at the bottom in the shell flows out from the top in the shell, so that the lubricating oil can be poured outside the worm all the time, and the heat dissipation effect of the worm and the worm gear is improved.

Description

Technical Field

[0001] The utility model relates to the application field of worm gear reducers, in particular to a durable worm gear reducer with high connection strength. Background Art

[0002] Worm gear reducers are usually used in high-torque and low-speed transmission mechanisms. After the motor and other high-speed power pass through the worm gear reducer, the speed is reduced and the output torque is increased. The worm gear reducer is installed between the motor and the working unit. The motor transmits power and the worm gear reducer reduces the speed, thereby transmitting the speed and torque from the output shaft to the working unit.

[0003] A worm gear reducer usually consists of a worm wheel and a worm. The worm is usually connected to a driving assembly as the input shaft. The high-speed rotating worm meshes with the worm wheel, which drives the worm wheel to rotate slowly, thereby reducing the speed and increasing the torque. The worm wheel serves as the output shaft.

[0004] The main working parts of the worm gear reducer are the worm and the worm wheel. The worm and the worm wheel are subject to greater wear when meshing, so the service life of the worm gear reducer is short. Currently, the service life of the reducer is mainly increased by using high-strength materials to make the worm wheel and worm, but it still has certain defects. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a durable worm gear reducer with high connection strength to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a durable worm gear reducer with high connection strength, comprising a shell, an input shaft is rotatably connected inside the shell, a worm is installed on the outside of the input shaft, and a cam is installed on the outside of the input shaft, an output shaft is rotatably connected inside the shell, a worm wheel is installed on the outside of the output shaft, and the worm and the worm wheel are meshed with each other, a movable rod is movably installed inside the shell, an outer convex ring is installed on the outside of the movable rod, and a spring is sleeved on the outside of the movable rod, a piston cylinder is arranged inside the shell, a piston head is movably installed inside the piston cylinder, and the top of the piston head is connected to the movable rod, and the piston cylinder and the shell are connected by setting an oil inlet pipe and an oil outlet pipe.

[0007] By adopting the above technical solution, the lubricating oil in the shell can be circulated by arranging a cam, a movable rod, a spring, a piston head and a piston cylinder. When the piston head moves upward, the lubricating oil in the shell will enter the piston cylinder unidirectionally through the oil inlet pipe. When the piston head moves downward, the lubricating oil in the piston cylinder will enter the oil discharge pipe unidirectionally. That is, the lubricating oil at the bottom of the shell flows out from the top of the shell, so that the lubricating oil can be poured on the outside of the worm, thereby improving the heat dissipation effect of the worm and the worm wheel and reducing the risk of damage to the reducer.

[0008] The utility model is further configured such that one end of the oil inlet pipeline is connected to the side of the piston cylinder, and the other end of the oil inlet pipeline is connected to the inner bottom of the shell. A one-way valve is arranged in the oil inlet pipeline, and lubricating oil can flow from the shell into the interior of the piston cylinder.

[0009] By adopting the above technical solution, an oil inlet pipeline is provided, and a one-way valve is provided in the oil inlet pipeline. When the piston cylinder space increases, the lubricating oil in the housing can enter the piston cylinder through the oil inlet pipeline.

[0010] The utility model is further configured such that one end of the oil drain pipe is connected to the bottom of the piston cylinder, and the other end of the oil drain pipe is connected to the inner top of the shell. A one-way valve is provided in the oil drain pipe, and lubricating oil can flow from the piston cylinder into the interior of the shell.

[0011] By adopting the above technical solution, an oil drain pipe is provided, and a one-way valve is provided in the oil drain pipe. When the piston cylinder space is reduced, the lubricating oil in the piston cylinder can enter the housing through the oil drain pipe.

[0012] The utility model is further configured such that the cam can periodically squeeze the movable rod, thereby causing the movable rod to reciprocate up and down.

[0013] By adopting the above technical solution and setting a cam, when the cam rotates, it can periodically squeeze the movable rod, thereby pushing the movable rod to reciprocate and push the piston head to move up and down.

[0014] The utility model is further configured that an oil shell is installed on the top of the shell, and multiple groups of heat dissipation fins are evenly distributed outside the oil shell, and multiple groups of oil drain holes are opened on the top of the shell located inside the oil shell.

[0015] By adopting the above technical solution and providing an oil shell, lubricating oil can be temporarily stored, so that the lubricating oil in the oil shell can be dissipated through the heat dissipation fins.

[0016] The utility model is further configured such that the oil drain pipe is communicated with the oil shell, and the lubricating oil can be temporarily stored in the oil shell and enter the interior of the housing through the oil drain hole.

[0017] By adopting the above technical solution and providing the oil drain holes, the lubricating oil in the oil shell can be evenly poured onto the outside of the worm.

[0018] In summary, the utility model mainly has the following beneficial effects:

[0019] 1. The utility model can make the lubricating oil in the housing circulate by arranging the cam, the movable rod, the spring, the piston head and the piston cylinder. When the piston head moves upward, the lubricating oil in the housing will enter the piston cylinder unidirectionally through the oil inlet pipe. When the piston head moves downward, the lubricating oil in the piston cylinder will enter the oil discharge pipe unidirectionally, that is, the lubricating oil at the bottom of the housing flows out from the top of the housing, so that the lubricating oil can be poured on the outside of the worm, thereby improving the heat dissipation effect of the worm and the worm wheel and reducing the risk of damage to the reducer;

[0020] 2. The utility model sets an oil shell, which can temporarily store a small amount of lubricating oil, and a plurality of groups of cooling fins are distributed on the outside of the oil shell, which can reduce the temperature of the lubricating oil and improve the heat dissipation effect of the lubricating oil. A plurality of groups of oil drain holes are distributed in the oil shell, so that the lubricating oil can be poured more evenly on the outside of the worm, thereby improving the heat dissipation speed of the worm. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model;

[0023] Figure 3 It is a cross-sectional view of the utility model;

[0024] Figure 4 This is the oil discharge pipeline distribution diagram of the utility model.

[0025] In the figure: 1. housing; 2. input shaft; 3. worm; 4. output shaft; 5. worm wheel; 6. movable rod; 7. outer convex ring; 8. spring; 9. piston head; 10. piston cylinder; 11. cam; 12. oil inlet pipe; 13. oil discharge pipe; 14. oil shell; 15. cooling fins; 16. oil discharge hole. DETAILED DESCRIPTION

[0026] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0027] The following describes an embodiment of the utility model based on its overall structure.

[0028] Embodiment 1

[0029] A durable worm gear reducer with high connection strength, such as Figure 1-4 As shown, it includes a housing 1, an input shaft 2 is rotatably connected inside the housing 1, a worm 3 is installed outside the input shaft 2, and a cam 11 is installed outside the input shaft 2, an output shaft 4 is rotatably connected inside the housing 1, a worm wheel 5 is installed outside the output shaft 4, and the worm 3 and the worm wheel 5 are meshed with each other, a movable rod 6 is movably installed inside the housing 1, an outer convex ring 7 is installed outside the movable rod 6, and a spring 8 is sleeved outside the movable rod 6, a piston cylinder 10 is arranged inside the housing 1, a piston head 9 is movably installed inside the piston cylinder 10, and the top of the piston head 9 is connected to the movable rod 6, the piston cylinder 10 and the housing 1 is connected by setting an oil inlet pipe 12 and an oil discharge pipe 13, and the lubricating oil in the housing 1 can circulate by setting a cam 11, a movable rod 6, a spring 8, a piston head 9 and a piston cylinder 10. When the piston head 9 moves upward, the lubricating oil in the housing 1 will enter the piston cylinder 10 in one direction through the oil inlet pipe 12. When the piston head 9 moves downward, the lubricating oil in the piston cylinder 10 will enter the oil discharge pipe 13 in one direction. That is, the lubricating oil at the bottom of the housing 1 flows out from the top of the housing 1, so that the lubricating oil can be poured on the outside of the worm 3, thereby improving the heat dissipation effect of the worm 3 and the worm wheel 5 and reducing the risk of damage to the reducer.

[0030] See also Figure 3 One end of the oil inlet pipe 12 is connected to the side of the piston cylinder 10, and the other end of the oil inlet pipe 12 is connected to the inner bottom of the shell 1. A one-way valve is arranged in the oil inlet pipe 12, and the lubricating oil can flow from the shell 1 into the interior of the piston cylinder 10. By setting the oil inlet pipe 12, a one-way valve is arranged in the oil inlet pipe 12. When the space of the piston cylinder 10 increases, the lubricating oil in the shell 1 can enter the piston cylinder 10 through the oil inlet pipe 12.

[0031] See also Figure 3 One end of the oil drain pipe 13 is connected to the bottom of the piston cylinder 10, and the other end of the oil drain pipe 13 is connected to the inner top of the shell 1. A one-way valve is arranged in the oil drain pipe 13, and the lubricating oil can flow from the piston cylinder 10 into the interior of the shell 1. By setting the oil drain pipe 13, a one-way valve is arranged in the oil drain pipe 13. When the space of the piston cylinder 10 is reduced, the lubricating oil in the piston cylinder 10 can enter the shell 1 through the oil drain pipe 13.

[0032] See also Figure 3 The cam 11 can periodically squeeze the movable rod 6, thereby causing the movable rod 6 to reciprocate up and down. By setting the cam 11, when the cam 11 rotates, it can periodically squeeze the movable rod 6, thereby pushing the movable rod 6 to reciprocate and push the piston head 9 to move up and down.

[0033] Embodiment 2

[0034] A durable worm gear reducer with high connection strength, such as Figure 2 and Figure 3 As shown, an oil shell 14 is installed on the top of the shell 1, and multiple groups of cooling fins 15 are evenly distributed on the outside of the oil shell 14, and multiple groups of oil drain holes 16 are opened on the top of the shell 1 located inside the oil shell 14. By setting the oil shell 14, the oil shell 14 can temporarily store a small amount of lubricating oil, and multiple groups of cooling fins 15 are distributed on the outside of the oil shell 14, which can reduce the temperature of the lubricating oil and improve the heat dissipation effect of the lubricating oil. Multiple groups of oil drain holes 16 are distributed in the oil shell 14, so that the lubricating oil can be more evenly poured on the outside of the worm 3, thereby improving the heat dissipation speed of the worm 3.

[0035] See also Figure 3 The oil drain pipe 13 is connected to the oil shell 14 , and the lubricating oil can be temporarily stored in the oil shell 14 and enter the interior of the housing 1 through the oil drain hole 16 . By setting the oil drain hole 16 , the lubricating oil in the oil shell 14 can be evenly poured onto the outside of the worm 3 .

[0036] The working principle of the utility model is as follows: when the reducer is working, the driving assembly drives the input shaft 2 to rotate, thereby the input shaft 2 drives the worm 3 to rotate, the worm 3 is meshed with the worm wheel 5, so that the rotation of the worm wheel 5 drives the output shaft 4 to rotate, and the output shaft 4 is connected to the working unit, thereby converting high speed into low speed and high torque.

[0037] When the input shaft 2 rotates, the cam 11 will be driven to rotate, and the cam 11 will squeeze the movable rod 6. The outer convex ring 7 outside the movable rod 6 will compress the spring 8. The movable rod 6 moves downward to push the piston head 9 downward, so that the space inside the piston cylinder 10 is reduced, and the one-way valve in the oil discharge pipe 13 is opened, and then the lubricating oil inside the piston cylinder 10 can enter the oil shell 14 through the oil discharge pipe 13, and the lubricating oil will be temporarily stored inside the oil shell 14, and the heat of the lubricating oil is transferred to the oil shell 14, and then transferred to the air through the cooling fins 15, and the lubricating oil is poured on the outside of the worm 3 through the oil discharge hole 16, so as to evenly cover the outside of the worm 3 and the worm wheel 5. When the spring 8 is reset and pushes the outer convex ring 7 to drive the movable rod 6 upward, the space inside the piston cylinder 10 is increased, the one-way valve of the oil discharge pipe 13 is closed, and the one-way valve of the oil inlet pipe 12 is opened, and then the lubricating oil in the housing 1 enters the interior of the piston cylinder 10 through the oil inlet pipe 12, and so on. The lubricating oil can circulate inside the housing 1.

[0038] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A durable worm gear reducer with high connection strength, comprising a housing (1), characterized in that: The housing (1) is internally rotatably connected to an input shaft (2), and a worm (3) is installed on the outside of the input shaft (2), and a cam (11) is installed on the outside of the input shaft (2); the housing (1) is internally rotatably connected to an output shaft (4), and a worm wheel (5) is installed on the outside of the output shaft (4), and the worm (3) and the worm wheel (5) are meshed with each other; a movable rod (6) is movably installed on the inside of the housing (1), and an outer convex ring (7) is installed on the outside of the movable rod (6), and a spring (8) is sleeved on the outside of the movable rod (6); a piston cylinder (10) is arranged on the inside of the housing (1), and a piston head (9) is movably installed on the inside of the piston cylinder (10), and the top of the piston head (9) is connected to the movable rod (6); the piston cylinder (10) and the housing (1) are connected by an oil inlet pipe (12) and an oil outlet pipe (13).

2. The durable worm gear reducer with high connection strength according to claim 1, characterized in that: One end of the oil inlet pipeline (12) is connected to the side of the piston cylinder (10), and the other end of the oil inlet pipeline (12) is connected to the inner bottom of the housing (1). A one-way valve is provided in the oil inlet pipeline (12), so that lubricating oil can flow from the housing (1) into the interior of the piston cylinder (10).

3. The durable worm gear reducer with high connection strength according to claim 1, characterized in that: One end of the oil discharge pipe (13) is connected to the bottom of the piston cylinder (10), and the other end of the oil discharge pipe (13) is connected to the inner top of the housing (1). A one-way valve is provided in the oil discharge pipe (13), so that lubricating oil can flow from the piston cylinder (10) into the interior of the housing (1).

4. The durable worm gear reducer with high connection strength according to claim 1, characterized in that: The cam (11) can periodically squeeze the movable rod (6), thereby causing the movable rod (6) to reciprocate up and down.

5. The durable worm gear reducer with high connection strength according to claim 1, characterized in that: An oil shell (14) is installed on the top of the shell (1), and multiple groups of heat dissipation fins (15) are evenly distributed outside the oil shell (14), and multiple groups of oil drain holes (16) are opened inside the oil shell (14) at the top of the shell (1).

6. The durable worm gear reducer with high connection strength according to claim 5, characterized in that: The oil drain pipe (13) is in communication with the oil casing (14), and the lubricating oil can be temporarily stored in the oil casing (14) and enter the interior of the housing (1) through the oil drain hole (16).

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