Lubricating device of spindle box
By installing an oil reservoir and an oil outlet and return pipe between the spindle box and the spindle box, combined with an oil filter baffle and a filter tank, the lubricating oil circulation is achieved by utilizing the rotational inertia of the spindle, which solves the problem of high sealing requirements of the spindle box and improves the lubrication effect.
Patent Information
- Application Number
- CN202520603115.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Existing spindle box lubrication systems have high sealing requirements, which leads to complex design and manufacturing, and poor lubrication performance.
The oil reservoir and the spindle box are connected by an oil outlet pipe and an oil return pipe. Combined with the design of an oil filter baffle and a filter tank, the rotational inertia of the spindle inside the spindle box is used to achieve lubricating oil circulation, reducing sealing requirements.
The simplified spindle box sealing design improves lubrication, reduces sealing requirements, and achieves better lubrication.
Smart Images

Figure CN223676983U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model mainly relates to the lubrication technical field of rotating main shaft, concretely relates to a lubricating device of main shaft box. BACKGROUND
[0002] The main shaft box is one of the core parts of the transmission equipment, and is mainly responsible for transmitting torque and rotating speed. The main shaft box adopts multi-stage gear transmission, and through a certain transmission system, the motion is finally transmitted to the main shaft through the transmission gears and transmission shafts at various positions in the main shaft box, so that the main shaft obtains the specified rotating speed and direction.
[0003] In order to ensure that the transmission equipment can work normally and reduce the wear of parts, the bearings, gears and the like in the main shaft box must be well lubricated. The existing lubricating system mainly uses a lubricating pump to supply oil to the main shaft box, and a certain pressure is generated during oil supply. This oil supply mode has high sealing requirements for the main shaft box. CONTENT OF THE UTILITY MODEL
[0004] In view of the defects and deficiencies of the prior art, the utility model embodiment provides a lubricating device for reducing the sealing requirements of the main shaft box. The technical scheme is as follows:
[0005] The utility model provides a lubricating device of main shaft box, including oil storage tank, the oil storage tank has oil outlet pipe and oil return pipe, the oil outlet pipe and oil return pipe are connected with main shaft box respectively, so that the oil storage tank and main shaft box are communicated through the oil outlet pipe and oil return pipe, the horizontal height of the oil outlet pipe and oil return pipe and main shaft box is same.
[0006] As the preferred technical scheme, a filter plate is vertically arranged in the inner cavity of the oil storage tank, the filter plate divides the inner cavity of the oil storage tank into a left chamber and a right chamber, the oil outlet pipe and the oil return pipe are connected with the left chamber and the right chamber respectively, a filter groove is arranged on the filter plate, and the height of the oil outlet pipe and the left chamber is lower than the height of the oil return pipe and the right chamber.
[0007] As the preferred technical scheme, the rotating main shaft in the main shaft box is horizontally arranged.
[0008] As the preferred technical scheme, an oil mark is arranged on the oil storage tank.
[0009] As the preferred technical scheme, a liquid level switch is arranged in the oil storage tank, so that the oil storage tank can alarm when reaching the lowest liquid level.
[0010] The utility model provides a lubricating device of main shaft box, which realizes the circulation of lubricating oil between the oil storage tank and the main shaft box through the rotational inertia of the main shaft in the main shaft box, reduces the sealing requirements of the main shaft box, and has the advantages of simple structure and good lubricating effect. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.
[0012] Figure 1 is a schematic diagram of the connection state structure of the lubricating device and the spindle box provided in the embodiments of the present application;
[0013] Figure 2 is Figure 1 a top view of the lubricating device of the spindle box;
[0014] Figure 3 is Figure 1 a perspective view of the lubricating device of the spindle box;
[0015] Figure 4 is a schematic diagram of the lubricating device structure of the spindle box provided in the embodiments of the present application;
[0016] Figure 5 is a schematic diagram of the internal structure of the oil storage tank provided in the embodiments of the present application. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will further describe the embodiments of the present application in combination with the drawings.
[0018] The present application provides a lubricating device of a spindle box, which comprises an oil storage tank 2, wherein the oil storage tank is provided with an oil outlet pipe 4 and an oil return pipe 3, the oil outlet pipe and the oil return pipe are connected to a spindle box 1 respectively, so that the oil storage tank 1 and the spindle box 1 are connected through the oil outlet pipe and the oil return pipe, and the horizontal height of the connection between the oil outlet pipe and the oil return pipe and the spindle box is the same. The rotating spindle in the spindle box can be arranged horizontally, and the lubricating effect is better.
[0019] The oil storage tank is provided with an oil filter partition plate 7 vertically in the inner cavity, the oil filter partition plate divides the inner cavity of the oil storage tank into a left chamber and a right chamber, the oil outlet pipe and the oil return pipe are connected to the left chamber and the right chamber respectively, and the oil filter partition plate is provided with a filtrate groove 8, the lubricating oil enters the left chamber through the filtrate groove 8 after entering the right chamber from the oil return pipe 3, and the purpose of the filtrate groove 8 is to make the impurities in the lubricating oil stay below the liquid level 8 of the filtrate groove in the right chamber.
[0020] The height of the connection between the oil outlet pipe 4 and the left chamber is lower than the height of the connection between the oil return pipe 3 and the right chamber.
[0021] The oil storage tank is provided with an oil mark 5, so as to facilitate the observation of the liquid level in the oil storage tank.
[0022] The oil storage tank is provided with a liquid level switch 6 to alarm when the oil storage tank reaches the lowest liquid level.
[0023] The utility model provides a kind of lubricating device of main shaft box, the rotation inertia of main shaft in main shaft box is realized to circulate lubricating oil between oil tank and main shaft box, reduce the sealing requirement of main shaft box, it is simple in structure, and lubrication effect is good.
[0024] The technical scheme of the utility model is described, but not limited; although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of technical features; and these modifications or replacements do not make the essence of corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiments of the utility model.
Claims
1. A lubrication device for a spindle box, characterized in that, It includes an oil reservoir, which has an oil outlet pipe and an oil return pipe. The oil outlet pipe and the oil return pipe are respectively connected to the spindle box so that the oil reservoir and the spindle box are connected through the oil outlet pipe and the oil return pipe. The oil outlet pipe and the oil return pipe are connected to the spindle box at the same horizontal level.
2. The lubrication device for the spindle box according to claim 1, characterized in that, The oil storage tank is vertically equipped with an oil filter baffle, which divides the oil storage tank into a left chamber and a right chamber. The oil outlet pipe and the oil return pipe are connected to the left chamber and the right chamber, respectively. The oil filter baffle is equipped with a filtrate tank. The height at which the oil outlet pipe is connected to the left chamber is lower than the height at which the oil return pipe is connected to the right chamber.
3. The lubrication device for the spindle box according to claim 1, characterized in that, The rotating spindle inside the spindle box is horizontally positioned.
4. The lubrication device for the spindle box according to claim 1, characterized in that, The oil tank is equipped with an oil level indicator.
5. The lubrication device for the spindle box according to claim 1, characterized in that, The oil storage tank is equipped with a level switch to trigger an alarm when the oil storage tank reaches the minimum level.