Double-screw low-torque reduction gearbox

Abstract

The utility model discloses a twin-screw low-torque reduction gearbox, which belongs to the field of twin-screw reduction gearboxes and comprises a twin-screw reduction gearbox, the twin-screw reduction gearbox monitors the quantity of internal lubricating oil through a lubricating oil monitoring component, and the lubricating oil monitoring component is further provided with a lubricating oil supplementing component. By arranging the lubricating oil monitoring assembly, the quantity of lubricating oil in the reduction gearbox is detected in real time through the oil floating plug and the infrared correlation alarm, so that the quantity of the lubricating oil in the reduction gearbox can be known in time, and damage caused by excessive friction of a transmission assembly in the reduction gearbox is avoided; by arranging the oil pressure sensor, the reduction gearbox is in a working state or an idle state, targeted detection is carried out when the reduction gearbox is in a working state or an idle state, misjudgment caused by traditional arrangement of a single sensor due to oil pressure changes is avoided, and by arranging the lubricating oil supplementing assembly, an electromagnetic valve can be started when the infrared correlation alarm gives an alarm in the corresponding state of the reduction gearbox; lubricating oil supplementing barrels on the two sides of the monitoring pipe are controlled to supplement oil into the reduction gearbox in time, and the lubricating stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to double screw reduction gearbox technical field especially relates to a double screw low torque reduction gearbox. BACKGROUND

[0002] Reduction gearbox is a kind of mechanical transmission device, mainly used to reduce the rotational speed of engine output, improve torque to meet the requirement of different rotational speed, and the principle of reduction gearbox is to use gear to work, and it is an independent component composed of gear transmission, worm transmission and gear-worm transmission enclosed in rigid casing, and is commonly used as the speed reduction transmission device between prime mover and working machine.

[0003] During the use of reduction gearbox, to improve service life, usually inject lubricating oil into gear box before working, to provide protection for internal transmission assembly. The existing reduction gearbox lubricating oil is usually detected and added by detecting whether the oil pressure in the reduction gearbox is in the state of no lubricating oil to control whether the driving motor continues to rotate, such as patent No. CN203686082U3 double screw reduction gearbox lubricating oil alarm device;

[0004] But because the transmission assembly in the reduction gearbox works, will make the lubricating oil evenly adhere to the transmission assembly, cause the oil pressure in the reduction gearbox to reduce, easily be judged as no lubricating oil state by oil pressure monitor, and at this time, the transmission assembly still adheres to the lubricating oil, directly close the driving motor to supplement the lubricating oil, will make the reduction gearbox work pause, reduce its working efficiency.

[0005] Therefore, the present application provides a double screw low torque reduction gearbox. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of double screw low torque reduction gearbox, to solve the problem that the transmission assembly in the reduction gearbox works in prior art, will make the lubricating oil evenly adhere to the transmission assembly, cause the oil pressure in the reduction gearbox to reduce, easily be judged as no lubricating oil state by oil pressure monitor, and at this time, the transmission assembly still adheres to the lubricating oil, directly close the driving motor to supplement the lubricating oil, will make the reduction gearbox work pause, reduce its working efficiency.

[0007] To achieve the above object, the utility model adopts the following technical scheme:

[0008] A double screw low torque reduction gearbox, including the double screw reduction gearbox of internal transmission assembly, the double screw reduction gearbox is monitored by lubricating oil monitoring assembly to internal lubricating oil amount, the lubricating oil monitoring assembly still is provided with lubricating oil supplementing assembly;

[0009] The lubricating oil monitoring assembly comprises a monitoring pipe in communication with the double-screw reduction gearbox, the surface of the monitoring pipe is provided with a monitoring scale, and the monitoring pipe is provided with an oil amount alarm assembly, which comprises an oil float and an infrared opposite-shooting alarm.

[0010] The lubricating oil supplement assembly comprises a lubricating oil supplement cylinder, the lubricating oil supplement cylinder is fixedly communicated with the monitoring pipe through a communication pipe, and the communication pipe is provided with an electromagnetic valve in electric connection with the infrared opposite-shooting alarm.

[0011] Preferably, the oil float is slidingly connected in the monitoring pipe, and the monitoring pipe is provided in a half U shape.

[0012] Preferably, the infrared opposite-shooting alarm is provided in two groups, and the two groups of infrared opposite-shooting alarms are arranged at positions corresponding to a low-oil threshold value in working and a low-oil threshold value in static state respectively.

[0013] Preferably, the top of the monitoring pipe is provided with a pressure injection valve, and the inner wall of the monitoring pipe is fixedly provided with a glass window.

[0014] Preferably, the lubricating oil supplement cylinder is internally provided with high-pressure gas, and the lubricating oil supplement cylinder controls the communication pipe connected with the monitoring pipe through the electromagnetic valve.

[0015] Preferably, the communication pipe is located below the activity range of the oil float, and the lubricating oil supplement cylinders are symmetrically arranged on the two sides of the monitoring pipe.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. By setting the lubricating oil monitoring assembly, the monitoring pipe and the lubricating oil storage cavity in the reduction gearbox form a communication pipe, the oil amount of the lubricating oil in the reduction gearbox is detected in real time by the oil float and the infrared opposite-shooting alarm, so that the lubricating oil amount in the reduction gearbox can be known in time, excessive friction of the transmission assembly in the reduction gearbox is avoided, damage is caused, and targeted detection is carried out on the working state or idle state of the reduction gearbox, the single sensor is avoided to be misjudged due to oil pressure change, and the working efficiency of the reduction gearbox is reduced due to the lubricating oil amount mis-detection.

[0018] 2. By setting the lubricating oil supplement assembly, when the infrared opposite-shooting alarm alarms under the corresponding state of the reduction gearbox, the electromagnetic valve is started, the lubricating oil supplement cylinders on the two sides of the monitoring pipe supplement oil in the reduction gearbox in time, and the lubricating stability is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A three-dimensional structure schematic view of the double-screw low-torque reduction gearbox is provided for the utility model.

[0020] Figure 2The utility model provides a kind of structure assembly view of double screw low torque reduction gearbox;

[0021] Figure 3 The utility model provides a kind of internal structure section view schematic diagram of monitoring tube in double screw low torque reduction gearbox;

[0022] Figure 4 The utility model provides a kind of internal structure section view schematic diagram of monitoring tube and lubricating oil supplementing cylinder in double screw low torque reduction gearbox.

[0023] In the drawing: 1, double screw reduction gearbox;2, monitoring tube;21, oil float;22, infrared opposite shot alarm;3, lubricating oil supplementing cylinder;31, communication pipe;32, solenoid valve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] REFERENCE Figures 1-4 A kind of double screw low torque reduction gearbox, including the double screw reduction gearbox 1 of internal setting transmission assembly, double screw reduction gearbox 1 is monitored to internal lubricating oil amount by lubricating oil monitoring assembly, and lubricating oil monitoring assembly is also provided with lubricating oil supplementing assembly;

[0026] It should be noted that: double screw reduction gearbox 1 is composed of double screw, reduction gearbox and transmission assembly, and in non-working state in double screw reduction gearbox 1, lubricating oil is located at the bottom wall in double screw reduction gearbox 1, which is prior art, and will not be described in detail when describing the specific structure of double screw reduction gearbox 1 subsequently;

[0027] Based on the above, the utility model solves the misjudgment problem of traditional single sensor in oil pressure dynamic change scene through state-oriented monitoring and automatic oil supplementing mechanism, effectively improves the working reliability and efficiency of double screw reduction gearbox 1.

[0028] Lubricating oil monitoring assembly includes monitoring tube 2 communicated with double screw reduction gearbox 1, monitoring scale is arranged on the surface of monitoring tube 2, and oil level alarm assembly is arranged on monitoring tube 2, and oil level alarm assembly is composed of oil float 21 and infrared opposite shot alarm 22;

[0029] Further, the oil float 21 is slidingly connected in the monitoring pipe 2, and the monitoring pipe 2 is arranged in a half U shape, and the infrared pair alarm 22 is arranged in two groups, and the two groups of infrared pair alarms 22 are arranged to correspond to the low oil threshold value in working and the low oil threshold value in static state respectively;

[0030] Further, the top of the monitoring pipe 2 is provided with an injection valve, and the inner wall of the monitoring pipe 2 is fixed with a glass window;

[0031] It should be noted that: through the communication between the monitoring pipe 2 and the lubricating oil storage cavity in the double screw reduction box 1, the oil pressure and oil volume in the double screw reduction box 1 can be synchronously displayed through the monitoring pipe 2 based on the principle of communicating vessel;

[0032] Based on the above, when the double screw reduction box 1 works, the lubricating oil will cause the oil pressure in the lubricating oil storage part to drop due to the uniform adhesion on the transmission assembly. At this time, the movement track of the oil float 21 is monitored by the bottom infrared pair alarm 22, and when the double screw reduction box 1 is idle, it is monitored by the top infrared pair alarm 22, so as to avoid the situation that the lubricating oil volume is misjudged when the double screw reduction box 1 works, and the working efficiency of the double screw reduction box 1 is reduced;

[0033] The further advantage of the above is that: at the initial stage of running after the lubricating oil is added into the reduction box, the color of the lubricating oil is transparent and yellowish. After running for a long time, the temperature is high, which will cause the color of the lubricating oil to change to black. This is the color change process of the existing lubricating oil. Therefore, the color change of the lubricating oil can be directly observed at the glass window arranged on the inner wall of the monitoring pipe 2 to determine whether the lubricating oil needs to be replaced, so as to achieve the effect of visualizing the state of the lubricating oil in the closed environment of the reduction box;

[0034] Based on the above, the injection valve arranged at the top of the monitoring pipe 2 can adjust the air pressure at the top of the oil float 21 to be the same as the air pressure in the double screw reduction box 1 through the existing inflation equipment, so that when the oil float 21 floats in the monitoring pipe 2, the height of the lubricating oil in the double screw reduction box 1 can be directly reflected by the oil height in the monitoring pipe 2.

[0035] The lubricating oil supplementing assembly comprises a lubricating oil supplementing cylinder 3, and the lubricating oil supplementing cylinder 3 is fixedly communicated with the monitoring pipe 2 through a communication pipe 31, and the communication pipe 31 is provided with an electromagnetic valve 32 which is electrically connected with the infrared pair alarm 22.

[0036] Further, the lubricating oil supplementing cylinder 3 is internally provided with high-pressure gas, and the lubricating oil supplementing cylinder 3 controls the communication pipe 31 connected with the monitoring pipe 2 through the electromagnetic valve 32;

[0037] Furthermore, the connecting pipe 31 is located below the moving range of the oil float 21, and the lubricating oil replenishment cylinder 3 is symmetrically arranged on both sides of the monitoring pipe 2;

[0038] It should be noted that when the twin-screw reducer 1 is working or idle, the oil float 21 is monitored by the infrared beam alarm 22 at the corresponding position. When the oil float 21 blocks the infrared beam alarm 22 from transmitting and receiving the infrared beam signal, an alarm signal is issued and the solenoid valve 32 is activated, so that the lubricating oil replenishing cylinders 3 on both sides of the monitoring tube 2 can replenish the lubricating oil to the twin-screw reducer 1 in a timely manner.

[0039] The further advantage of the above is that the connecting pipe 31 is set below the range of motion of the oil float 21, which can ensure that the oil is injected directly into the lubricating oil storage chamber of the twin screw reducer 1 during the replenishment process of the lubricating oil replenishment cylinder 3, avoiding being blocked by the oil float 21 and affecting the accuracy of the oil detection by the oil float 21 in conjunction with the infrared beam alarm 22.

[0040] Working principle:

[0041] When the twin-screw reducer 1 is working, the lubricating oil is evenly attached to the transmission components, which causes the oil pressure in the lubricating oil storage area to drop. At this time, the movement trajectory of the oil float 21 is monitored by the bottom infrared beam alarm 22. When the twin-screw reducer 1 is idle, it is monitored by the top infrared beam alarm 22. This avoids the situation where the lubricating oil level is misjudged when the twin-screw reducer 1 is working by only detecting it with a single infrared beam alarm 22, which would reduce the working efficiency of the twin-screw reducer 1.

[0042] When the twin-screw reducer 1 is in operation or idle, the oil float 21 is monitored by the infrared beam alarm 22 at the corresponding position. When the oil float 21 blocks the infrared beam alarm 22 from transmitting and receiving infrared beam signals, an alarm signal is issued and the solenoid valve 32 is activated, so that the lubricating oil replenishment cylinders 3 on both sides of the monitoring tube 2 can replenish the lubricating oil to the twin-screw reducer 1 in a timely manner.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A twin-screw low-torque reduction gearbox, comprising a twin-screw reduction gearbox (1) with an internal transmission assembly, characterized in that, The twin-screw reducer (1) monitors the amount of lubricating oil inside through a lubricating oil monitoring component, and the lubricating oil monitoring component is also equipped with a lubricating oil replenishment component; The lubricating oil monitoring component includes a monitoring tube (2) connected to the twin screw reducer (1). The surface of the monitoring tube (2) is provided with a monitoring scale, and an oil quantity alarm component is provided on the monitoring tube (2). The oil quantity alarm component consists of an oil float (21) and an infrared beam alarm (22). The lubricating oil replenishment assembly includes a lubricating oil replenishment cylinder (3), which is fixedly connected to the monitoring tube (2) through a connecting pipe (31). A solenoid valve (32) electrically connected to an infrared beam alarm (22) is installed inside the connecting pipe (31).

2. The twin-screw low-torque reduction gearbox according to claim 1, characterized in that, The oil float (21) is slidably connected inside the monitoring tube (2), and the monitoring tube (2) is configured as a semi-U shape.

3. The twin-screw low-torque reduction gearbox according to claim 1, characterized in that, The infrared beam alarm (22) is set in two groups, and the positions of the two groups of infrared beam alarms (22) correspond to the low oil level threshold when working and the low oil level threshold when stationary, respectively.

4. The twin-screw low-torque reduction gearbox according to claim 1, characterized in that, The monitoring tube (2) is equipped with a pressure injection valve at the top, and a glass window is fixed to the inner wall of the monitoring tube (2).

5. A twin-screw low-torque reduction gearbox according to claim 1, characterized in that, The lubricating oil replenishment cylinder (3) is equipped with high-pressure gas, and the lubricating oil replenishment cylinder (3) controls the connecting pipe (31) connected to the monitoring pipe (2) through the solenoid valve (32).

6. The twin-screw low-torque reduction gearbox according to claim 1, characterized in that, The connecting pipe (31) is located below the range of motion of the oil float (21), and the lubricating oil replenishment cylinder (3) is symmetrically arranged on both sides of the monitoring pipe (2).

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