CN201207017Y - Running-in machine for multi-sleeve bearing - Google Patents

Abstract

Disclosed is a multiple bearing running-in machine. An electromotor and a running-in head fixing stand are arranged on a frame. A running-in head is arranged on the running-in head fixing stand, and a driven cog belt wheel is arranged on the running-in head. A drive cog belt wheel is arranged on an output shaft of the electromotor, and is connected with the driven cog belt wheel through a synchronous cog belt. A filter connected with the running-in head through a pipe is arranged at the left side of the frame, and a transducer connected with the electromotor through a lead is arranged at the right side of the frame. The multiple bearing running-in machine adopts the transducer to control the rotation speed of the electromotor, and the drive cog belt wheel, the synchronous cog belt and the driven cog belt wheel to form a transmission shaft, thus improving running-in precision of the bearings. The bearing running-in machine can run in 10 bearings, the running-in head is moveably connected on the running-in head fixing stand, and the efficiency is improved by 10times. After running-in, the turning precision of the bearing is improved from D grade to B grade. Therefore, the multiple bearing running-in machine can be used as a special device for fabricating high-precision bearings.

Description

Multiple sets of bearing running-in machine

technical field

The utility model belongs to the technical field of bearing processing equipment, and in particular relates to a device or equipment for running-in a bearing.

technical background

Bearing is a standard part, which is widely used in aerospace, automobile, machine tool, railway, energy, household appliances, textile and other mechanical equipment. With the development and application of new materials, new equipment and new processes, the quality and precision of bearings gradually improved. Different mechanical equipment has different precision requirements for bearings. Automobiles, machine tools, railways, energy sources, household appliances and other equipment generally do not have high precision requirements for bearings. Ordinary grade bearings can meet the requirements for use. However, aircraft gyro instruments, CNC machine tools, etc. , The bearings used on train locomotives and carriages require high precision and small frictional torque. At present, such high-precision bearings mainly rely on imports.

There are many factors to determine the accuracy of bearings, including material problems and processing technology problems. Among them, the geometric accuracy and surface finish of the bearing surface are the main factors to determine the bearing accuracy. How to improve the accuracy of bearings is currently a lot of domestic machining. Businesses and research institutions conduct research trials.

The patent number is 02238435.9, and the invention name is "Bearing Running-in Machine". A pressure cylinder for clamping is installed at the end of the main shaft. The pressure cylinder controls the clamping installed at the front end of the main shaft through the pull rod installed in the hollow main shaft. device, a pressure device is fixed on the bed above the headstock, the pressure device is composed of a pressure cylinder and a pressure head installed at the end of the piston rod of the pressure cylinder, a temperature detection device is installed on the pressure head, the pressure of the pressure device The cylinder and the pressure cylinder of the clamping device are all equipped with a pressure gauge and a pressure control device, and a support seat is installed at the front end of the main shaft, and the support seat is fixed on the workbench at the lower part of the main shaft. The bearing running-in machine with this structure has a complex structure, high production cost, and only one bearing can be installed at a time, and the processing efficiency is too low to meet the needs of large quantities of high-precision bearings in production practice. In addition, the motor deceleration adopts a mechanical structure reducer. Due to the large coordination error between the gear transmissions and the additional vibration, the speed of the output shaft of the reducer is not constant, which makes the precision of the running-in bearing low. In addition, the motor is connected with the main shaft on which the running-in bearing is installed through a belt transmission mechanism, and the belt transmission mechanism is an ordinary belt, which also makes the precision of the running-in bearing low. The bearings after running-in of this kind of bearing running-in machine cannot meet the requirements of bearing accuracy required by aerospace, aerospace vehicles and precision instruments. Therefore, a technical problem that urgently needs to be solved in the current field of bearing processing technology is to develop a bearing processing running-in equipment with high efficiency and high precision.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the shortcomings of the above-mentioned bearing running-in machine, and provide a multi-set bearing running-in machine with reasonable design, simple structure, sufficient positioning, low product cost, high production efficiency, and high precision of the processed bearings. machine.

The technical solution adopted to solve the above-mentioned technical problems is: a motor and a running-in head fixing frame are arranged on the frame, a running-in head is arranged on the running-in head fixing frame, a driven toothed belt wheel is arranged on the running-in head, The output shaft of the motor is provided with a driving toothed pulley, the driving toothed pulley is connected with the driven toothed pulley through a synchronous belt, and the left side of the frame is provided with a filter connected with the running head through a pipe. The inverter and the right side are provided with a frequency converter connected to the motor through wires.

The running-in head of the utility model is as follows: the front end of the bearing seat is provided with a front cover, and the rear end is provided with a stuffy cover, and the bearing seat is processed with lubricating oil inlet holes, lubricating oil return holes, cleaning oil inlet holes, cleaning oil The oil return hole, the lubricating oil inlet hole and the lubricating oil return hole are connected to the filter through the conduit, and the main shaft for installing the running-in bearing is arranged in the bearing seat, and the outer end of the main shaft is connected with the driven toothed pulley .

The utility model adopts a frequency converter to control the speed of the motor, and at the same time adopts a transmission mechanism composed of a driving toothed belt wheel, a synchronous toothed belt and a driven toothed belt wheel to transmit the torsional torque output by the motor to the running-in bearing. On the main shaft, the precision of the running-in bearing is greatly improved. 10 sets of bearings can be installed on the main shaft, and 10 sets of bearings can be run-in at the same time. Compared with the integrated machine, the efficacy is increased by 10 times, and the rotation accuracy of the bearing after the running-in of the utility model is improved from the D level before the running-in to the B level. The utility model has the advantages of reasonable design, simple structure, low product cost, high production efficiency, high precision of processed bearings, etc., and can be used as special equipment for manufacturing high-precision bearings.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

FIG. 2 is a top view of FIG. 1 .

FIG. 3 is a structural schematic diagram of the running-in head 2 in FIG. 1 .

Detailed ways

The utility model is described in further detail below in conjunction with accompanying drawing and embodiment, but the utility model is not limited to these embodiments.

Example 1

In Figures 1 and 2, the multi-bearing running-in machine of this embodiment consists of a filter 1, a running-in head 2, a driven toothed pulley 3, a synchronous toothed belt 4, a driving toothed pulley 6, a motor 5, The frequency converter 7, the frame 8, and the running-in head fixing frame 9 are connected to form.

On the frame 8, a motor 5 and two running-in head fixed mounts 9 are fixedly connected with a threaded fastening connector, and a running-in head 2 is installed on the two running-in head fixed mounts 9 with bolts. The head holder 9 is very convenient for installing the running-in head 2, which improves the work efficiency. The running-in bearing is installed in the running-in head 2, and the running-in head 2 is used to run-in the bearing to improve the accuracy of the bearing. The motor 5 To provide power for the utility model, a driven toothed pulley 3 is fixedly installed on the running-in head 2 with a connecting piece, and a driving toothed pulley 6 is fixedly installed on the output shaft of the motor 5 with a connecting piece. 6 is connected with the driven toothed pulley 3 through the synchronous toothed belt 4, the driving toothed pulley 6, the synchronous toothed belt 4, and the driven toothed pulley 3 constitute the transmission mechanism of the present utility model. The transmission mechanism improves the precision of the running-in bearing. The left side of the frame 8 is fixedly connected with a filter 1 with a threaded fastening connector, and the filter 1 communicates with the running-in head 2 through a pipeline, and the filter 1 is used to filter the lubricating oil used when the running-in bearing is used. The right side of the frame 8 is fixedly connected with a frequency converter 7 with a threaded fastening connector, the frequency converter 7 is connected to the motor 5 through a wire, the input frequency of the motor 5 is controlled by the frequency converter 7, the speed of the motor 5 is changed, and the running For the control of the rotating speed of the closing head 2, the rotating speed of the motor 5 is controlled by the frequency converter 7, which improves the precision of the running-in bearing.

FIG. 3 shows a schematic structural view of the running-in head 2 . In Fig. 3, the running-in head 2 of the present embodiment is composed of a blind cover 2-1, a bearing seat 2-2, a front cover 2-4, and a main shaft 2-4.

The upper part of the bearing seat 2-2 is radially processed with a lubricating oil inlet hole a and a lubricating oil return hole c, and the lubricating oil inlet hole a and the lubricating oil return hole c communicate with the filter 1 through a conduit, and the 1 The lubricating oil flowing out enters the bearing housing 2-2 from the lubricating oil inlet hole a to lubricate the running-in bearing, and the lubricating oil in the bearing housing 2-2 flows back to the filter from the lubricating oil return hole c 1 for filtering, the upper part of the bearing seat 2-2 is processed with a cleaning oil inlet hole b, and the lower part is processed with a cleaning oil return hole d, and the cleaning oil inlet hole b is used for cleaning the inside of the bearing seat 2-2. It flows in from the cleaning oil inlet hole b and flows out from the cleaning oil return hole d. The front end of the bearing housing 2-2 is fixedly connected with a front cover 2-4 with a bolt fastening joint, and the rear end of the bearing housing 2-2 is fixedly connected with a boring cover 2-1 with a bolt fastening joint, and the bearing housing 2- 2 is equipped with a main shaft 2-4, and the driven toothed pulley 3 is fixedly connected to the outer end of the main shaft 2-4 with a threaded fastening connector, and the running-in bearing is installed on the main shaft 2-4 in the bearing seat 2-2. 4, 10 sets of run-in bearings can be installed on the main shaft 2-4.

The running-in head 2 of the utility model is designed as a semi-open type, which is very convenient to install. 10 sets of bearings can be installed on the main shaft 2-4, and 10 sets of bearings can be run-in at the same time. Compared with the "Bearing Running-in Machine" with the patent No. It is greatly improved, and the rotation accuracy of the bearing after running-in of the utility model is promoted from D level before running-in to B level.

Claims (2)

1, a kind of many cover bearing running-in machines, it is characterized in that: frame (8) is provided with motor (5) and running-in head frame (9), running-in head frame (9) is provided with running-in head (2), running-in head (2) is provided with driven toothed belt wheel (3), the output shaft of motor (5) is provided with initiatively profile of tooth belt wheel (6), initiatively profile of tooth belt wheel (6) links by synchronous cog belt (4) and driven toothed belt wheel (3), and the left side of frame (8) is provided with the filtrator (1) that links by pipeline and running-in head (2), the right side is provided with the frequency converter (7) that is connected with motor (5) by lead.

2, according to the described many cover bearing running-in machines of claim 1, it is characterized in that said running-in head (2) is: the front end of bearing seat (2-2) is provided with protecgulum (2-4), the rear end is provided with stifle (2-1), be processed with lubricating oil oil supply hole (a) on the bearing seat (2-2), lubricating oil return hole (c), wash oil oil supply hole (b), wash oil spill port (d), lubricating oil oil supply hole (a) and lubricating oil return hole (c) link by conduit and filtrator (1), be provided with in the bearing seat (2-2) and be used to install by the main shaft of running-in bearing (2-4), the outer end of main shaft (2-4) and driven toothed belt wheel (3) link.

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