Improved radial sliding bearing test equipment

Abstract

The utility model relates to the technical field of bearing testing, and discloses improved radial sliding bearing testing equipment which comprises a shell, a truss fixedly connected to the top of the shell, a stepping motor fixedly connected to one side of the top of the truss, and a supporting shaft seat fixedly connected to the other side of the top of the truss. The driving end of the stepping motor is fixedly connected with a middle shaft rod of the supporting shaft seat, a radial sliding bearing is rotationally connected to the middle of the supporting shaft seat, and an oil feeding ring is rotationally connected to the portion, located beside the radial sliding bearing, of the middle of the supporting shaft seat; an adjustable traction mechanism is additionally arranged in the testing process of the radial sliding bearing, so that the friction force influence on the whole outer wall of the bearing can be reduced when the whole bearing is rotated and turned over for adjustment, and lubricating oil is synchronously added to the outer wall of the bearing and a gap between balls for infiltration, so that in the testing process of the radial rolling bearing, the test accuracy is improved. And the occurrence of cracks or the occurrence of falling is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing test technical field, concretely is a kind of improved radial sliding bearing test equipment. BACKGROUND

[0002] Centrifugal compressor bearing is sliding bearing, according to the different load bearing is divided into radial bearing and thrust bearing two kinds, the role of radial bearing is to bear the weight of rotor and other additional radial force, keep the center of rotation of rotor and cylinder center consistent, and rotate normally under certain speed, the role of thrust bearing is to bear the axial force of rotor, limit the axial movement of rotor, keep the axial position of rotor in cylinder.

[0003] Radial sliding bearing test equipment can appear lubricating oil temperature rise too high and unit vibration when using, bearing alloy can wear, crack, local fall off etc., seriously can lead to bearing alloy melting accident, under high speed and load, sliding bearing can produce more friction heat, need additional cooling or heat dissipation measure, affect the stability and life of equipment in overall use process.

[0004] Therefore, an improved radial sliding bearing test equipment is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an improved radial sliding bearing test equipment to solve the problems raised in the background.

[0006] To achieve the above object, the utility model provides the following technical scheme: an improved radial sliding bearing test equipment, comprising a shell, the top of the shell is fixedly connected with a truss, one side of the top of the truss is fixedly connected with a stepping motor, the other side of the top of the truss is fixedly connected with a support shaft seat, the driving end of the stepping motor is fixedly connected with the middle shaft of the support shaft seat, the middle part of the support shaft seat is rotatably connected with a radial sliding bearing, and the middle part of the support shaft seat is rotatably connected with an oil supply ring on the side of the radial sliding bearing.

[0007] Preferably, the lower middle part of the truss is fixedly connected with a connecting seat, and the connecting seat is sleeved with a traction rope on the outer wall.

[0008] Preferably, the top of the shell is fixedly connected with a guide rail seat away from the truss.

[0009] Preferably, the inner wall of the guide rail seat is rotatably connected with a pair of rollers, and the outer wall of the traction rope away from the connecting seat is respectively wound on the outer wall of the two side rollers.

[0010] Preferably, an automatic rope collector is fixedly connected on the outer wall of the shell, and the end of the traction rope away from the connecting seat is fixedly connected with the automatic rope collector.

[0011] Preferably, a plurality of rectangular grooves are provided on the top of the shell.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. By adding an adjustable pulling mechanism to the radial sliding bearing during the test, the friction effect on the outer wall of the bearing as a whole can be reduced during the rotation and flipping adjustment. At the same time, lubricating oil is simultaneously infiltrated into the outer wall and the gap between the balls, so that the radial rolling bearing can be flipped and adjusted smoothly under high-speed rotation and load conditions. At the same time, the lubricating oil can also carry away some of the heat generated by the outer closure of the radial rolling bearing during the flow process, thereby reducing the occurrence of cracks or falling off of the radial rolling bearing during the test.

[0014] 2. For the radial sliding bearing being tested, five tilting pads are evenly distributed around the journal. The pads are cast with babbitt alloy with a thickness of 1 to 3 mm. Each pad can swing around its own fulcrum. There is a pad directly below the journal to support the journal during shutdown and for alignment when cold. The outer diameter of each pad is smaller than the inner diameter of the bearing sleeve. The arc on the back of the pad is in line contact with the hole of the bearing sleeve, which is equivalent to a fulcrum. When the operating conditions such as the unit speed and load change, the pad can swing freely on the supporting surface of the sleeve, automatically adjusting the position of the pad to form the best lubricating oil wedge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall device of the utility model;

[0016] Figure 2 It is a vertical cross-sectional diagram of the connecting seat and the guide rail seat of the utility model;

[0017] Figure 3 This is a schematic top view of the overall device of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the radial sliding bearing in the utility model.

[0019] In the picture:

[0020] 1. Housing; 2. Truss; 3. Stepper motor; 4. Support shaft seat; 5. Radial sliding bearing; 6. Oil ring; 7. Guide rail seat; 8. Roller; 9. Traction rope; 10. Automatic rope retractor; 11. Rectangular groove; 12. Connecting seat. DETAILED DESCRIPTION

[0021] 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 protection scope of the utility model.

[0022] Please refer to Figures 1 to 4 An embodiment provided by the utility model: an improved radial sliding bearing testing device, including shell 1, the top of shell 1 is fixedly connected with truss 2, one side of the top of truss 2 is fixedly connected with step motor 3, the other side of the top of truss 2 is fixedly connected with support shaft seat 4, the driving end of step motor 3 is fixedly connected with the middle part shaft of support shaft seat 4, the middle part of support shaft seat 4 is rotatably connected with radial sliding bearing 5, the middle part of support shaft seat 4 is rotatably connected with oil ring 6 on the side of radial sliding bearing 5;

[0023] Wherein: the inside of shell 1 is hollow, the rotation track of oil ring 6 is along the middle part of support shaft seat 4, the both sides of support shaft seat 4 adopt detachable shaft plate, the radial sliding bearing is as shown in Figure 4 The structure is divided into bearing gland (part number ①), positioning pin (part number ②), screw I (part number ③), oil baffle (part number ④), tiltable tile (part number ⑤), screw II (part number ⑥), bearing sleeve (part number ⑦), positioning block (part number ⑧), oil baffle (part number ⑨), screw III (part number ⑩);

[0024] Better: the radial sliding bearing to be detected is sleeved on the middle part of support shaft seat 4 by disassembling the shaft plate on one side of support shaft seat 4, then the shaft plate is restored to the original state, the shaft of the middle part of support shaft seat 4 is driven to rotate by step motor 3, and then the rotation of oil ring 6 on the middle part of support shaft seat 4 can be driven, in the process, the internal lubricating oil can be sprayed on the middle part of radial sliding bearing 5, and the smoothness of radial rolling bearing in the rotation adjustment process is improved.

[0025] The lower middle part of truss 2 is fixedly connected with link seat 12, traction rope 9 is sleeved on the outer wall of link seat 12, the top of shell 1 is fixedly connected with guide rail seat 7 away from truss 2, a pair of rollers 8 are rotatably connected in the middle part of the inner wall of guide rail seat 7, the outer wall of the end of traction rope 9 away from link seat 12 is respectively wound on the outer wall of the two side rollers 8, automatic rope collector 10 is fixedly connected on the outer wall of shell 1, the end of traction rope 9 away from link seat 12 is fixedly connected with automatic rope collector 10, a plurality of rectangular grooves 11 are formed in the top of shell 1;

[0026] Wherein: the movement track of traction rope 9 moves along the rollers 8 rotatably arranged in the middle part of link seat 12 and guide rail seat 7.

[0027] More preferably: with the rotation of the oil ring 6, in turn can drive the traction rope 9 in the horizontal position to move, and in the interface seat 12 and the guide rail seat 7 middle part rotating setting of the roller 8 limit guide cooperation makes the traction rope 9 can be flexible accommodation or extension adjustment in the automatic rope collector 10 inside, the lubricating oil dripping down from the truss 2 above can seepage collection to the inside of the shell 1 along each way rectangular groove 11.

[0028] The working principle of the above implementation is as follows:

[0029] The working steps are as follows:

[0030] First, disassemble the shaft plate on one side of the support shaft seat 4, put the radial sliding bearing to be detected on the middle part of the support shaft seat 4, and then restore the shaft plate to its original state. The shaft rod in the middle part of the support shaft seat 4 is driven to rotate by the stepping motor 3, which in turn drives the oil ring 6 to rotate in the middle part of the support shaft seat 4. In this process, the internal lubricating oil can be sprayed onto the middle part of the radial sliding bearing 5, thereby improving the smoothness of the radial rolling bearing during rotation adjustment. With the rotation of the oil ring 6, in turn can drive the traction rope 9 in the horizontal position to move, and in the interface seat 12 and the guide rail seat 7 middle part rotating setting of the roller 8 limit guide cooperation makes the traction rope 9 can be flexible accommodation or extension adjustment in the automatic rope collector 10 inside, the lubricating oil dripping down from the truss 2 above can seepage collection to the inside of the shell 1 along each way rectangular groove 11.

[0031] In order to prevent the bearing bush from moving in the axial and radial directions, the bush is installed in the T-shaped groove composed of the oil baffle (part number ④) and the bearing sleeve (part number ⑦). The oil baffle (part number ④) and the bearing sleeve (part number ⑦) are assembled together by screw I (part number ③). The bearing gland (part number ①) is horizontally divided into upper and lower parts, installed in the bearing seat, and positioned by bolts and positioning pins to ensure centering. In order to prevent the bearing sleeve (part number ⑦) from rotating, a radial positioning pin (part number ②) is installed. The positioning block (part number ⑧) can adjust the axial position of the oil baffle (part number ⑨). The oil baffle (part number ⑨) and the bearing gland (part number ①) are assembled together by screw III (part number ⑩). The oil baffle (part number ⑨) acts as a barrier between the bearing and the coupling, preventing a large amount of lubricating oil from flowing into the coupling side and avoiding the stirring of lubricating oil.

[0032] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0033] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. An improved radial sliding bearing testing device, characterized in that: The invention comprises a housing (1), wherein the top of the housing (1) is fixedly connected to a truss (2), one side of the top of the truss (2) is fixedly connected to a stepper motor (3), the other side of the top of the truss (2) is fixedly connected to a support shaft seat (4), the driving end of the stepper motor (3) is fixedly connected to the middle shaft rod of the support shaft seat (4), the middle part of the support shaft seat (4) is rotatably connected to a radial sliding bearing (5), and the middle part of the support shaft seat (4) is located next to the radial sliding bearing (5) and is rotatably connected to an oil supply ring (6).

2. The improved radial sliding bearing testing device according to claim 1, characterized in that: A connecting seat (12) is fixedly connected to the lower middle portion of the truss (2), and a traction rope (9) is sleeved on the outer wall of the connecting seat (12).

3. The improved radial sliding bearing testing device according to claim 2, characterized in that: A guide rail seat (7) is fixedly connected to a side of the top of the housing (1) away from the truss (2).

4. The improved radial sliding bearing testing device according to claim 3, characterized in that: A pair of rollers (8) are rotatably connected to the middle of the inner wall of the guide rail seat (7), and the outer wall of one end of the traction rope (9) away from the connecting seat (12) is respectively wound around the outer walls of the rollers (8) on both sides.

5. The improved radial sliding bearing testing device according to claim 4, characterized in that: An automatic rope retractor (10) is fixedly connected to the outer wall of the housing (1), and one end of the traction rope (9) away from the connecting seat (12) is fixedly connected to the automatic rope retractor (10).

6. The improved radial sliding bearing testing device according to claim 5, characterized in that: A plurality of rectangular grooves (11) are provided on the top of the housing (1).

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