External oil pipe of speed reducer

Abstract

An external oil pipe of a speed reducer comprises a C-shaped oil pipe which is connected between an oil filling hole and an oil discharging hole in the fixed end of the speed reducer and is in a C shape, an oil discharging plug for sealing the bottom end of the C-shaped oil pipe and a ventilation oil dipstick assembly arranged at the upper end of the C-shaped oil pipe. The ventilation plug is installed at the upper end of the C-shaped oil pipe in a threaded fit mode, the oil dipstick is coaxially and fixedly connected with the ventilation plug and extends into the C-shaped oil pipe in the vertical direction, and oil level scale marks are carved at the bottom end of the oil dipstick. The oil dipstick and the ventilation plug are fixed into a whole and extend into the C-shaped oil pipe, disassembly and assembly are convenient, a connecting structure of the C-shaped oil pipe is not added, the oil leakage risk and the maintenance frequency are not increased, the production and maintenance cost is reduced, connection between the C-shaped oil pipe and the speed reducer, connection between the ventilation plug and the C-shaped oil pipe and connection between the oil drain plug and the C-shaped oil pipe are simple and easy to operate, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to a speed reducer external oil pipe belongs to speed reducer technical field. BACKGROUND

[0002] In order to effectively lubricate the internal gear and bearing, a certain amount of oil needs to be added in the speed reducer, and the oil level needs to be checked, oil is added when the liquid level is reduced, the internal oil temperature rises during the operation of the speed reducer, causing the internal pressure to increase, and timely aeration is required, the traditional way is to install oil filling and oil drain screw plugs on the fixed end of the speed reducer, use a funnel or other conversion connector to add lubricating oil when filling oil, and remove the oil drain screw plug to drain oil or use the conversion connector to drain oil, an oil mirror or an oil mark is arranged on the side of the speed reducer to observe the oil level in the speed reducer, but the traditional way of filling and draining oil has small operation space and is not convenient, and the oil mirror and the oil mark are easily covered by impurities and cannot be seen clearly. In order to improve the convenience of filling and draining oil and observing the oil level, the prior art also has the oil filling and oil drain screw plugs assembled together to form an external oil pipe mounted on the end face of the speed reducer, and a transparent tube or a visual liquid level display is mounted on the external oil pipe to realize oil level observation, although this structure is convenient for filling and draining oil and observing the oil level, the structure of the transparent tube or the liquid level display mounted on the external oil pipe is complex, the assembly cost is high, and the connection of the transparent oil tube or the liquid level display is prone to loosening during the operation of the speed reducer, increasing the risk of oil leakage and the maintenance and maintenance cost of the external oil pipe, and the practicability is not high. SUMMARY

[0003] The speed reducer external oil pipe provided by the utility model fixes the oil gauge and the breather plug into a whole and extends into the C-shaped oil pipe, is convenient to disassemble and assemble, does not increase the connection structure of the C-shaped oil pipe, does not increase the risk of oil leakage and the maintenance frequency, reduces the production and maintenance cost, and the connection of the C-shaped oil pipe with the speed reducer, the breather plug and the oil drain plug with the C-shaped oil pipe is simple and easy to operate and has high practicability.

[0004] To achieve the above purpose, the utility model adopts the technical scheme of:

[0005] The speed reducer external oil pipe comprises a C-shaped oil pipe connected between an oil filling hole and an oil drain hole of a fixed end of a speed reducer and in a C shape, an oil drain plug sealing a bottom end of the C-shaped oil pipe and a breather oil gauge assembly mounted on an upper end of the C-shaped oil pipe, characterized in that the breather oil gauge assembly comprises a breather plug threadedly matched and mounted on the upper end of the C-shaped oil pipe and an oil gauge coaxially fixed to the breather plug and vertically extending into the C-shaped oil pipe, and an oil level scale line is marked at a bottom end of the oil gauge.

[0006] Preferably, the C-shaped oil pipe comprises a horizontal pipe I threadedly fitted on the oil filling hole of the fixed end of the speed reducer and arranged radially along the speed reducer, a horizontal pipe II arranged in parallel below the horizontal pipe I and threadedly fitted on the oil discharging hole of the fixed end of the speed reducer, and a vertical pipe arranged vertically and connecting the horizontal pipe I and the horizontal pipe II, the horizontal pipe I and the horizontal pipe II are connected with the vertical pipe through three-way joints respectively, the vent plug is threadedly fitted on the three-way joint at the upper end of the vertical pipe, the oil discharging plug is threadedly fitted on the three-way joint at the lower end of the vertical pipe, and the oil gauge is inserted into the vertical pipe.

[0007] Preferably, the oil gauge is a steel pipe with an outer diameter smaller than the inner diameter of the vertical pipe, and the oil level scale line is located below the central axis of the speed reducer.

[0008] Preferably, the lower end of the oil gauge is provided with a vertical strip-shaped notch, the oil level scale line is marked on the inner wall of the oil gauge and aligned with the strip-shaped notch, the upper edge of the strip-shaped notch is the upper limit of the oil level in the speed reducer, and the lower edge is the lower limit of the oil level in the speed reducer.

[0009] Preferably, the vent plug comprises a hollow screw plug threadedly inserted into the upper end of the C-shaped oil pipe and a cover cap covering the hollow screw plug through three-point riveting, a vent gap is formed between the cover cap and the hollow screw plug, and the oil gauge is coaxially fixed to the bottom of the hollow screw plug.

[0010] The beneficial effects of the utility model are as follows:

[0011] The vent oil gauge assembly of the utility model is arranged on the upper end of the C-shaped oil pipe, the oil gauge is coaxially fixed to the vent plug and inserted into the C-shaped oil pipe, the oil discharging plug is arranged at the lower end of the C-shaped oil pipe, the vent plug is used for releasing the hot gas in the speed reducer and reducing the pressure in the cavity of the speed reducer, the upper end of the C-shaped oil channel connected with the vent plug is used as an oil filling position, the oil discharging plug is used for discharging oil, when the oil level in the speed reducer is checked, the vent plug is removed from the C-shaped oil channel, and the oil level in the speed reducer is determined according to the oil level trace on the oil gauge, when the oil level trace on the oil gauge exceeds the oil level scale line, it indicates that the oil amount in the speed reducer is too much, and the oil needs to be appropriately discharged, when the oil level trace on the oil gauge is lower than the oil level scale line, it indicates that the oil amount in the speed reducer is too little, and the oil needs to be appropriately added, and when the oil level trace on the oil gauge is within the range of the oil level scale line, the oil level height can also be adjusted by appropriately adding or discharging oil according to the height of the oil level; the oil gauge and the vent plug are fixed as a whole and inserted into the C-shaped oil pipe, which is convenient to disassemble and assemble, does not increase the connection structure of the C-shaped oil pipe, does not increase the risk of oil leakage and the frequency of maintenance, reduces the production and maintenance costs, and the connection between the C-shaped oil pipe, the speed reducer, the vent plug and the oil discharging plug and the C-shaped oil pipe is simple and easy to operate, and has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The utility model is a schematic view of the speed reducer external oil pipe of the utility model being arranged on the speed reducer.

[0013] Figure 2It is a schematic view of the C-shaped oil pipe.

[0014] Figure 3 It is a schematic view of the breather dipstick assembly.

[0015] Figure 4 It is another schematic view of the breather dipstick assembly. DETAILED DESCRIPTION

[0016] The following Figures 1-4 The embodiments of the utility model are described in detail.

[0017] The C-shaped oil pipe 1 is connected between the oil filling hole and the oil discharge hole of the fixed end of the speed reducer and is in C shape, the oil discharge plug 2 seals the bottom end of the C-shaped oil pipe 1, and the breather dipstick assembly 3 is installed on the upper end of the C-shaped oil pipe 1, characterized in that the breather dipstick assembly 3 comprises a breather plug 4 screwedly installed on the upper end of the C-shaped oil pipe 1 and a dipstick 5 coaxially fixed with the breather plug 4 and vertically extending into the C-shaped oil pipe 1, and the bottom end of the dipstick 5 is marked with oil level graduation lines 7.

[0018] The breather dipstick assembly 3 is installed on the upper end of the C-shaped oil pipe 1, the dipstick 5 is coaxially fixed with the breather plug 4 and extends into the C-shaped oil pipe 1, the oil discharge plug 2 is installed on the lower end of the C-shaped oil pipe 1, the breather plug 4 is used for releasing hot gas in the speed reducer and reducing the pressure in the cavity of the speed reducer, the upper end of the C-shaped oil passage connected with the breather plug 4 is used as an oil filling position, the oil discharge plug 2 is used for discharging oil, when checking the oil level in the speed reducer, the breather plug 4 is removed from the C-shaped oil passage 1, and the oil level trace on the dipstick 5 is used to determine the oil level in the speed reducer, when the oil level trace on the dipstick 5 exceeds the oil level graduation lines, it indicates that the oil amount in the speed reducer is too much, and the oil needs to be appropriately discharged, when the oil level trace on the dipstick 5 is lower than the oil level graduation lines, it indicates that the oil amount in the speed reducer is too little, and the oil needs to be appropriately filled, and when the oil level trace on the dipstick is within the range of the oil level graduation lines, the oil can also be appropriately filled or discharged according to the height of the oil level to adjust the oil level height; the dipstick 5 is fixed as a whole with the breather plug 4 and extends into the C-shaped oil pipe, which is convenient to disassemble and assemble, does not increase the connection structure of the C-shaped oil pipe, does not increase the risk of oil leakage and the frequency of maintenance, reduces the production and maintenance costs, and the connection between the C-shaped oil pipe and the speed reducer, the breather plug and the oil discharge plug and the C-shaped oil pipe is simple and easy to operate and has high practicability.

[0019] The C-shaped oil pipe 1 comprises a horizontal pipe 6 assembled on the oil filling hole of the fixed end of the speed reducer in a threaded manner and arranged along the radial direction of the speed reducer, a horizontal pipe 2 arranged in parallel below the horizontal pipe 1 and assembled on the oil discharging hole of the fixed end of the speed reducer in a threaded manner, and a vertical pipe 8 arranged along the vertical direction and connecting the horizontal pipe 1 and the horizontal pipe 2, the horizontal pipe 1 and the horizontal pipe 2 are connected with the vertical pipe 8 through the three-way joint 9, the vent plug 4 is assembled on the three-way joint 9 at the upper end of the vertical pipe 8 in a threaded manner, the oil discharging plug 5 is assembled on the three-way joint 9 at the lower end of the vertical pipe 8 in a threaded manner, and the oil gauge 5 extends into the vertical pipe 8.

[0020] The oil gauge 5 is a steel pipe with an outer diameter smaller than the inner diameter of the vertical pipe 8, and the oil level scale line 6 is located below the central axis of the speed reducer. The oil gauge 5 is a steel pipe, the oil level height in the vertical pipe 8 is the oil level height in the speed reducer, the oil in the vertical pipe 8 enters the oil gauge 5 and leaves oil level traces on the inner wall of the oil gauge 5, the oil gauge 5 is taken out of the vertical pipe 8 by the vent plug 4, and the oil level height can be determined by observing the oil level traces on the oil gauge 5.

[0021] The oil gauge 5 is provided with a vertical strip-shaped notch 10 at the lower end, the oil level scale line 6 is marked on the inner wall of the oil gauge and aligned with the strip-shaped notch 10, the upper edge of the strip-shaped notch 10 is the upper limit of the oil level in the speed reducer, and the lower edge is the lower limit of the oil level in the speed reducer. The strip-shaped notch 10 is provided on the oil gauge 5, and the oil level scale line 6 is marked on the inner wall aligned with the strip-shaped notch 10, so that the oil level scale line 6 can be directly observed through the strip-shaped notch 10 when checking the oil level, improving the convenience of oil level reading. When checking the oil level, the oil gauge 5 is taken out of the vertical pipe 8 to read the oil level height according to the oil level traces on the oil level scale line 6, and the upper and lower edges of the strip-shaped notch 10 are the upper and lower limits of the oil level, respectively. When the oil gauge 5 is taken out, whether the upper and lower edges of the strip-shaped notch 10 are stuck with oil can quickly determine whether the oil in the speed reducer is too much or too little, improving the convenience of oil level checking.

[0022] The vent plug 4 comprises a hollow screw plug 41 screwed into the upper end of the C-shaped oil pipe 1 and a cap 42 covering the hollow screw plug 41 by three-point riveting, and a vent gap is formed between the cap 42 and the hollow screw plug 41, and the oil gauge 5 is coaxially fixed to the bottom of the hollow screw plug 41.

[0023] The technical scheme of the embodiments of the utility model is completely described in combination with the drawings, and it should be noted that the described embodiments are only a part of the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

Claims

1. A speed reducer external oil pipe, comprising a C-shaped oil pipe connected between a refueling hole and a draining hole of a fixed end of a speed reducer and in a C shape, a draining plug sealing a bottom end of the C-shaped oil pipe, and a venting oil gauge assembly installed on an upper end of the C-shaped oil pipe, characterized in that: The vent oil gauge assembly comprises a vent plug threadedly fitted on the upper end of the C-shaped oil pipe and an oil gauge coaxially fixed with the vent plug and vertically extending into the C-shaped oil pipe, the bottom end of the oil gauge being marked with oil level scale lines.

2. The external oil tube for a speed reducer according to claim 1, characterized by: The C-shaped oil pipe comprises a horizontal pipe one threadedly fitted on the oil filling hole of the fixed end of the speed reducer and radially arranged on the speed reducer, a horizontal pipe two arranged below the horizontal pipe one and threadedly fitted on the oil discharging hole of the fixed end of the speed reducer, and a vertical pipe vertically arranged and connecting the horizontal pipe one and the horizontal pipe two, the horizontal pipe one and the horizontal pipe two being connected with the vertical pipe through three-way joints, the vent plug being threadedly fitted on the three-way joint at the upper end of the vertical pipe, the oil discharging plug being threadedly fitted on the three-way joint at the lower end of the vertical pipe, and the oil gauge extending into the vertical pipe.

3. The reduction gear external oil tube of claim 1, wherein: The oil gauge is a steel pipe with an outer diameter smaller than the inner diameter of the vertical pipe, and the oil level scale lines are located below the central axis of the speed reducer.

4. The external oil tube for a speed reducer according to claim 3, characterized by: The lower end of the oil gauge is provided with a vertical strip-shaped notch, the oil level scale lines are marked on the inner wall of the oil gauge and aligned with the strip-shaped notch, the upper edge of the strip-shaped notch being the upper limit of the oil level in the speed reducer, and the lower edge being the lower limit of the oil level in the speed reducer.

5. The reduction gear external oil tube of claim 1, wherein: The vent plug comprises a hollow screw plug threadedly extending into the upper end of the C-shaped oil pipe and a cover cap covering the hollow screw plug through three-point riveting, a vent gap being formed between the cover cap and the hollow screw plug, and the oil gauge being coaxially fixed with the bottom of the hollow screw plug.

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