An automatic oil injection type worm and gear speed reducer

Abstract

The utility model relates to an automatic oil injection type worm and gear speed reducer belongs to speed reducer technical field, include: box, the box is rotatably connected with worm, the box is rotatably connected with worm gear, and worm and worm gear meshing drive, the box is installed with the oil pumping mechanism for automatic to the box inside addition lubricating oil. The box is rotatably connected with worm, the box is rotatably connected with worm gear, and worm and worm gear meshing drive, the box is installed with the oil pumping mechanism for automatic to the box inside addition lubricating oil, make the speed reducer when using internal lubricating oil consumption reduces, can add lubricating oil automatically through the oil pumping mechanism, reduced the labor intensity and improved work efficiency, avoided the wear and tear of speed reducer because of the lubricating oil addition not in time.

Description

Technical Field

[0001] This utility model belongs to the field of speed reducer technology, specifically relating to an automatic oil-filling worm gear reducer. Background Technology

[0002] A speed reducer is an independent component consisting of gear drives, worm drives, or gear-worm drives enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between a prime mover and a driven machine. It plays a role in matching speeds and transmitting torque between the prime mover and the driven machine or actuator, and its applications are extremely widespread in modern machinery.

[0003] Existing speed reducers often experience reduced internal lubricating oil consumption due to overheating and other issues during use. This requires regular manual lubrication, which is not only labor-intensive and inefficient, but also prone to wear due to untimely lubrication. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, this utility model proposes an automatic oil-filling worm gear reducer.

[0005] The specific technical solution of this utility model is as follows: An automatic oil-filling worm gear reducer includes: a housing, a worm gear rotatably connected to the housing, a worm wheel rotatably connected to the housing, the worm gear and the worm wheel meshing and transmitting power, and an oil pumping mechanism for automatically adding lubricating oil into the housing is installed on the housing.

[0006] Furthermore, the oil pumping mechanism includes: an oil pump housing, an oil pump housing mounted on the housing, a pump head slidably connected inside the oil pump housing, a pump rod slidably connected to the oil pump housing, one end of the pump rod connected to the pump head, a friction block mounted on the other end of the pump rod, an input pipe mounted on one side of the oil pump housing, an output pipe mounted on the other side of the oil pump housing, the input pipe connecting the oil pump housing to an external oil tank, the output pipe connecting the oil pump housing to the housing, a first one-way valve mounted on the input pipe, a second one-way valve mounted on the output pipe, and a cam mounted on the worm gear for cooperating with the friction block to drive the pump rod.

[0007] Furthermore, a thrust spring is provided between the pump housing and the friction block.

[0008] Furthermore, the pump housing is mounted on the housing via a mounting bracket.

[0009] Furthermore, the housing is provided with an oil injection hole.

[0010] Furthermore, the housing is equipped with an oil seal to prevent lubricating oil leakage.

[0011] Furthermore, the housing is equipped with multiple heat sinks.

[0012] Furthermore, both the worm and the worm wheel are rotatably connected to the housing via bearings.

[0013] Beneficial effects:

[0014] This application features a worm gear rotatably connected to the housing, and a worm wheel rotatably connected to the housing. The worm gear and worm wheel mesh and drive each other. The housing is equipped with an oil pump mechanism for automatically adding lubricating oil into the housing. When the internal lubricating oil consumption of the reducer decreases during use, the oil pump mechanism can automatically add lubricating oil, reducing labor intensity, improving work efficiency, and avoiding wear of the reducer due to untimely lubricating oil addition.

[0015] This application utilizes a pump housing mounted on a gearbox, with a pump head slidably connected inside the pump housing and a pump rod slidably connected to the pump housing. One end of the pump rod is connected to the pump head, and a friction block is mounted on the other end of the pump rod. An input pipe is mounted on one side of the pump housing, and an output pipe is mounted on the other side. The input pipe connects the pump housing to an external oil tank, and the output pipe connects the pump housing to the gearbox. A first one-way valve is mounted on the input pipe, and a second one-way valve is mounted on the output pipe. A cam is mounted on the worm gear to cooperate with the friction block to drive the pump rod. When the internal lubricating oil consumption of the reducer decreases, the pump head moves downward under gravity when the cam protrusion rotates downward, drawing lubricating oil from the external oil tank into the pump housing through the input pipe. Subsequently, the pump head moves in the reverse direction, transferring the lubricating oil in the pump housing into the gearbox through the output pipe. This achieves automatic lubricating oil replenishment, thereby reducing labor intensity, improving work efficiency, and preventing wear of the reducer due to untimely lubricating oil replenishment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the installation position of the oil pump mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the pump mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram showing the installation position of the heat sink of this utility model;

[0020] Explanation of markings in the diagram:

[0021] 1. Housing; 2. Worm gear; 3. Worm wheel; 4. Oil pumping mechanism; 41. Oil pump housing; 42. Pump head; 43. Pump rod; 44. Friction block; 45. Input pipe; 46. Output pipe; 47. First check valve; 48. Second check valve; 49. Cam; 5. Thrust spring; 6. Fixing bracket; 7. Oil filling hole; 8. Oil seal; 9. Heat sink. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Example 1: An automatic oil-filling worm gear reducer includes: a housing 1, a worm 2 rotatably connected to the housing 1, a worm wheel 3 rotatably connected to the housing 1, the worm 2 and the worm wheel 3 meshing and driving each other, and an oil pumping mechanism 4 for automatically adding lubricating oil into the housing 1 installed on the housing 1. This application utilizes the worm 2 and worm wheel 3 rotatably connected to the housing 1, the meshing and driving of the worm 2 and worm wheel 3, and the oil pumping mechanism 4 for automatically adding lubricating oil into the housing 1. This allows the reducer to automatically add lubricating oil when internal lubricating oil consumption decreases during use, reducing labor intensity, improving work efficiency, and preventing wear of the reducer due to untimely lubricating oil addition.

[0025] Example 2: Based on Example 1, the oil pumping mechanism 4 includes: an oil pump housing 41, which is mounted on the housing 1; a pump head 42 is slidably connected inside the oil pump housing 41; a pump rod 43 is slidably connected to the oil pump housing 41; one end of the pump rod 43 is connected to the pump head 42; a friction block 44 is mounted on the other end of the pump rod 43; an input pipe 45 is mounted on one side of the oil pump housing 41; and an output pipe 46 is mounted on the other side of the oil pump housing 41. The input pipe 45 is connected to the oil pump. The housing 41 is connected to the external oil tank, and the output pipe 46 connects the pump housing 41 to the housing 1. A first check valve 47 is installed on the input pipe 45, and a second check valve 48 is installed on the output pipe 46. A cam 49 is installed on the worm gear 2 for cooperating with the friction block 44 to drive the pump rod 43. In this application, the pump housing 41 is installed on the housing 1, and a pump head 42 is slidably connected inside the pump housing 41. A pump rod 43 is slidably connected to the pump housing 41, and one end of the pump rod 43 is connected to the pump head 42. Next, a friction block 44 is installed at the other end of the pump rod 43. An input pipe 45 is installed on one side of the pump oil housing 41, and an output pipe 46 is installed on the other side of the pump oil housing 41. The input pipe 45 connects the pump oil housing 41 to the external oil tank, and the output pipe 46 connects the pump oil housing 41 to the housing 1. A first check valve 47 is installed on the input pipe 45, and a second check valve 48 is installed on the output pipe 46. A cam 49 is installed on the worm gear 2 to cooperate with the friction block 44 to drive the pump rod 43. When the internal lubricating oil consumption of the reducer is reduced, when the cam 49 protrusion rotates to the lower position, the pump head 42 moves downward with gravity to draw lubricating oil from the external oil tank into the pump oil housing 41 through the input pipe 45. Then, the pump head 42 moves in the opposite direction to input the lubricating oil in the pump oil housing 41 into the housing 1 through the output pipe 46. This realizes the automatic addition of lubricating oil, thereby reducing labor intensity, improving work efficiency, and avoiding wear of the reducer due to untimely lubricating oil addition.

[0026] Example 3: Based on Example 2, a thrust spring 5 is provided between the pump housing 41 and the friction block 44. In this application, by providing a thrust spring 5 between the pump housing 41 and the friction block 44, when the cam 49 protrusion rotates to the lower position, the thrust spring 5 can push the friction block 44 to drive the pump head 42 to reset as soon as possible, thereby improving the working efficiency of the pump mechanism 4.

[0027] Example 4: Based on Example 3, the pump housing 41 is mounted on the housing 1 by the fixing bracket 6. In this application, the pump housing 41 is mounted on the housing 1 by the fixing bracket 6, which makes the installation of the pump housing 41 more stable and improves the stability of use; at the same time, it also makes the pump housing 41 easier to install and disassemble, improving the convenience of use.

[0028] Example 5: Based on Example 3, the housing 1 is provided with an oil filling hole 7. This application provides an oil filling hole 7 on the housing 1 to facilitate the addition of lubricating oil to the reducer during initial installation, thereby improving the ease of use.

[0029] Example 6: Based on Example 3, an oil seal 8 for preventing lubricating oil leakage is installed on the housing 1. This application avoids the leakage of internal lubricating oil in the housing 1 during use by installing an oil seal 8 for preventing lubricating oil leakage on the housing 1, thereby improving the safety of use.

[0030] Example 7: Based on Example 3, the housing 1 is provided with a plurality of heat sinks 9. By providing a plurality of heat sinks 9 on the housing 1, this application improves the heat dissipation efficiency of the reducer, thereby reducing the consumption of lubricating oil in daily use.

[0031] Example 8: Based on Example 3, both the worm 2 and the worm wheel 3 are rotatably connected to the housing 1 via bearings. In this application, by rotatably connecting both the worm 2 and the worm wheel 3 to the housing 1 via bearings, the rotation of the worm 2 and the worm wheel 3 becomes smoother, thus improving working efficiency.

[0032] Work process:

[0033] When the reducer is working, the external motor first drives the worm wheel 3 meshing with it to rotate and output power outward through the worm 2. At the same time, the worm 2 drives the cam 49 to rotate. The cam 49 convex part pushes up the friction block 44, which drives the pump rod 43 and the pump head 42 to move upward. The lubricating oil inside the pump oil housing 41 is input into the housing 1 through the output pipe 46 and the second one-way valve 48. When the cam 49 convex part rotates to the lower position, the thrust spring 5 drives the pump head 42 to move downward through the friction block 44 and the pump rod 43. The lubricating oil is drawn from the external oil tank into the pump oil housing 41 through the input pipe 45 and the first one-way valve 47. Then, the lubricating oil is continuously pumped into the housing 1 in a continuous cycle.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic oil-filling worm gear reducer, characterized in that, include: A housing (1) is provided, on which a worm gear (2) is rotatably connected, and a worm wheel (3) is rotatably connected. The worm gear (2) and the worm wheel (3) mesh and drive each other. An oil pumping mechanism (4) for automatically adding lubricating oil into the housing (1) is installed on the housing (1). The oil pumping mechanism (4) includes: an oil pump housing (41), on which the housing (1) is installed, and a pump head (42) is slidably connected inside the oil pump housing (41). A pump rod (43) is slidably connected on the oil pump housing (41), and one end of the pump rod (43) is connected to the pump head (42). Next, a friction block (44) is installed at the other end of the pump rod (43), an input pipe (45) is installed on one side of the pump oil housing (41), and an output pipe (46) is installed on the other side of the pump oil housing (41). The input pipe (45) connects the pump oil housing (41) to the external oil tank, and the output pipe (46) connects the pump oil housing (41) to the housing (1). A first check valve (47) is installed on the input pipe (45), and a second check valve (48) is installed on the output pipe (46). A cam (49) is installed on the worm gear (2) for cooperating with the friction block (44) to drive the pump rod (43).

2. The automatic oil-filling worm gear reducer according to claim 1, characterized in that, A thrust spring (5) is provided between the pump housing (41) and the friction block (44).

3. The automatic oil-filling worm gear reducer according to claim 1, characterized in that, The pump housing (41) is mounted on the box (1) by a fixing bracket (6).

4. The automatic oil-filling worm gear reducer according to claim 1, characterized in that, The housing (1) is provided with an oil injection hole (7).

5. The automatic oil-filling worm gear reducer according to claim 1, characterized in that, The housing (1) is equipped with an oil seal (8) to prevent lubricating oil leakage.

6. The automatic oil-filling worm gear reducer according to claim 1, characterized in that, The housing (1) is provided with multiple heat sinks (9).

7. The automatic oil-filling worm gear reducer according to claim 1, characterized in that, Both the worm (2) and the worm wheel (3) are rotatably connected to the housing (1) via bearings.

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