CN212252043U

CN212252043U - Rotary speed reducer for rotary digging machine

Info

Publication number: CN212252043U
Application number: CN202020684070.4U
Authority: CN
Inventors: 刘洪军
Original assignee: Ji'nan Comhaire Machinery Manufacturing Co ltd
Current assignee: Ji'nan Comhaire Machinery Manufacturing Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-29
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to a rotary speed reducer for rotary digging machine, including stopper, bearing frame, drive mechanism and output gear shaft, the stopper fixedly connect with drive mechanism and bearing frame in proper order, the output gear shaft set up in the bearing frame and link with drive mechanism, characterized in that the bearing frame on seted up the plug screw hole, the plug screw hole be fixed with oil absorption device; the operation is simple and convenient, the working time is shortened, and potential safety hazards caused by misoperation of workers can be avoided.

Description

Rotary speed reducer for rotary digging machine

Technical Field

The utility model relates to a speed reducer technical field, concretely relates to rotary speed reducer for rotary digging machine.

Background

The rotary speed reducer is composed of a planetary gear and a speed change module, and is mainly applied to common excavators, similar engineering machinery such as truck cranes and rotary excavating machinery, the rotary excavating machine drives the rotary speed reducer by a rotary motor, the rotary speed reducer drives a process of slewing bearing and completion, the rotary speed reducer needs to replace lubricating oil in the speed reducer after being used for a period of time, the speed reducer needs to be powered off and cooled when lubricating oil is replaced, but the lubricating oil is completely cooled or can become thick and cannot be poured out in a cold environment, great troubles are brought to work, the work progress is influenced, and meanwhile, potential safety hazards exist to workers if the workers are not operated properly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotary speed reducer for rotary digging machine to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a rotary speed reducer for a rotary digging machine comprises a brake, a bearing seat, a transmission mechanism and an output gear shaft, wherein the brake is fixedly connected with the transmission mechanism and the bearing seat in sequence;

the oil absorption device comprises an oil absorption cylinder, a piston and an oil absorption pipe, the piston is arranged in the oil absorption cylinder, a control head is fixed between one end of the oil absorption pipe and the oil absorption cylinder, a heating resistance wire is arranged in the oil absorption pipe, and a display screen and a switch are arranged on the control head.

Preferably, the oil suction pipe is a double-layer pipe, and the heating resistance wire is arranged between the double-layer pipes.

Preferably, the connection part of the oil suction pipe and the plug screw hole is provided with a thread matched with the plug screw hole, and the threaded end is fixed with a baffle plate.

Preferably, the screw plug holes are two in number, and one screw plug is arranged in one piece.

Preferably, the oil suction cylinder is provided with scale marks.

Preferably, the tail end of the oil suction pipe is provided with a temperature sensor.

Compared with the prior art, the beneficial effects of the utility model are that: when lubricating oil needs to be replaced, the oil suction device is installed on the bearing seat after the speed reducer is cooled, so that the temperature of the lubricating oil in the speed reducer is raised and diluted, the oil is sucked out of the oil suction cylinder through the oil suction pipe, and new oil can be injected again.

Drawings

Fig. 1 is a schematic view of a rotary speed reducer for a rotary digging machine according to the present invention;

fig. 2 is the structure schematic diagram of the oil suction device of the utility model.

In the figure: 1. the device comprises a brake, 2, a bearing seat, 3, a screw plug hole, 4, an oil suction device, 5, a transmission mechanism, 6, an output gear shaft, 7, a screw plug, 401, an oil suction cylinder, 402, a piston, 403, a control head, 404, an oil suction pipe, 405, a heating resistance wire, 406, a thread, 407, a temperature sensor, 408, a baffle, 409, a display screen, 410, a switch, 411 and a scale mark.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Please refer to fig. 1, the utility model discloses a rotary speed reducer for rotary digging machine, including stopper 1, drive mechanism 5, bearing frame 2, output gear axle 3 and

plug screw

7, 1 lower extreme of stopper is fixed with drive mechanism 4, bearing frame and output gear axle 3 in proper order, has seted up two plug screw holes 3 on the bearing frame, and when the speed reducer normally worked, two plug screw holes 3 all are sealed by plug screw 7, and when needs change lubricating oil, one of them plug screw hole 3 was used for installing oil suction device 4.

Referring to fig. 2, the oil suction device 4 includes an oil suction cylinder 401, a piston 402 and an oil suction pipe 404, the piston 402 is installed in the oil suction cylinder 401, oil in the speed reducer is sucked into the oil suction cylinder 401 through negative pressure, one end of the oil suction pipe 404 is connected and communicated with an oil inlet end of the oil suction cylinder 401 through a control head 403, the other end of the oil suction pipe is provided with a thread 406 and a baffle 408, so that the oil suction pipe 404 is in threaded connection with a bearing seat 2 on the speed reducer, the oil suction pipe 404 is a double-sided pipe, a heating resistance wire 405 is installed inside the oil suction pipe, so that the cooling oil is heated, a temperature sensor 407 is arranged at the tail end of the oil suction pipe, when a certain temperature is reached, the heating resistance wire stops heating to prevent a sealing part inside the speed reducer from failing, a switch 410 and a display screen 409 are installed on the control head 403, the display screen 409, when the lubricating oil does not need to be heated, the lubricating oil can be directly sucked out; the oil suction cylinder is provided with scale marks, and the oil sucked out can be wiped by the tube.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific instances, and furthermore, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1, the working principle of the present invention is: firstly, the speed reducer is powered off and cooled, after the speed reducer is cooled, the screw plugs 7 on the bearing seat 2 are detached, the oil suction device 4 is installed, the oil suction device 4 is powered on, the switch 410 is turned on, the heating resistance wire is used for heating, after the speed reducer reaches a specified temperature, the heating resistance wire 405 is automatically powered off, the piston 402 is shifted, so that lubricating oil in the speed reducer is sucked into the oil suction cylinder 401 through the oil suction pipe 404, and after the lubricating oil is sucked out, new oil is injected again.

Claims

1. A rotary speed reducer for a rotary digging machine comprises a brake (1), a bearing seat (2), a transmission mechanism (5) and an output gear shaft (6), wherein the brake (1) is fixedly connected with the transmission mechanism (5) and the bearing seat (2) in sequence, the output gear shaft (6) is arranged in the bearing seat (2) and is connected with the transmission mechanism (5), and the rotary speed reducer is characterized in that a screw plug hole (3) is formed in the bearing seat (2), and an oil suction device (4) is fixed on the screw plug hole (3);

the oil absorption device (4) comprises an oil absorption cylinder (401), a piston (402) and an oil absorption pipe (404), wherein the piston (402) is arranged in the oil absorption cylinder (401), a control head (403) is fixed between one end of the oil absorption pipe (404) and the oil absorption cylinder (401), a heating resistance wire (405) is arranged in the oil absorption pipe (404), and a display screen (409) and a switch (410) are arranged on the control head (403).

2. The rotary speed reducer for the rotary excavator according to claim 1, wherein the oil suction pipe (404) is a double-layer pipe, and the heating resistance wire (405) is arranged between the double-layer pipe.

3. The rotary speed reducer for the rotary excavator according to claim 1 or 2, wherein a thread (406) matched with the screw plug hole (3) is formed at the joint of the oil suction pipe (404) and the screw plug hole (3), and a baffle (408) is fixed at the threaded end.

4. The rotary speed reducer for the rotary excavator according to claim 1, wherein the number of the screw plug holes is two, and one of the screw plug holes is provided with a screw plug (7).

5. The rotary speed reducer for the rotary excavator according to claim 1, wherein the oil suction cylinder (401) is provided with scale marks (411).

6. The rotary speed reducer for the rotary excavator according to claim 1, wherein a temperature sensor (407) is arranged at the tail end of the oil suction pipe (404).