A cleaning device for super-silent bearings

Abstract

The utility model discloses a bearing ring cleaning technical field's a kind of cleaning device of super-silent bearing, including cleaning tank, cleaning frame, gas injection pipe and cleaning pool, cleaning pool and water storage tank are used to store cleaning fluid, and all are integrated in cleaning tank, can be transferred by the cooperation of cleaning frame and material pole, the bearing ring of processing completion is conveniently transported, and cleaning frame can be directly inserted in transmission joint, no longer need to shift again, the bearing ring of material pole on the sleeve, can position fixedly placed in cleaning pool and wash, bearing ring position is fixed, can effectively avoid mutual knock and scratch ball groove because of cleaning vibration between bearing ring, reduce the irreversible damage caused to bearing ring because of washing;It can also be cleaned by ultrasonic vibration vibration;The device also increases gas injection pipe, and material pole is connected with gas injection pipe and sprays, and airflow is guided into hollow material pole and cleaning frame, and is distributed and guides air, and then is blown through the bubble hole on material pole, so that the inner ring of bearing ring on material pole on the sleeve is cleaned, and the cleaning effect is good.

Description

Technical Field

[0001] This utility model relates to the field of bearing ring cleaning technology, and in particular to a cleaning device for ultra-quiet bearings. Background Technology

[0002] Ultra-quiet bearings are mainly used in precision instruments and have higher requirements for stability. Ultra-quiet bearings are actually bearings with very high precision, especially the surface precision of the ball grooves between the inner and outer rings of the bearing, which has extremely stringent requirements.

[0003] The stability and rotational accuracy of ultra-quiet bearings depend on the balls between the inner and outer rings and the grooves containing those balls. Scratches in the grooves between the inner and outer rings affect accuracy. In conventional bearings, a 0.1mm deep scratch on the ball groove surface has little impact on ball rotation when vibration requirements are low. However, ultra-quiet bearings are generally smaller, with very small internal balls (potentially only 1-3mm in diameter). A 0.1mm deep scratch can cause severe vibration in ball rotation, potentially leading to jerking and noise in the overall bearing operation. Therefore, when manufacturing ultra-quiet bearings, it is necessary to protect the mating surfaces of the bearing rings and the balls. For high-precision ultra-quiet bearings, the mating surfaces of the inner and outer rings must be free of scratches to ensure the required fit accuracy and achieve ultra-quiet operation.

[0004] The bearing is manufactured by cutting high-strength steel pipes into a ring structure, forming the bearing ring. The bearing ring consists of an inner ring and an outer ring, both requiring precision machining. After machining, any impurities adhering to the rings during processing must be cleaned. Following cleaning, the bearing rings must be inspected to confirm their machining accuracy.

[0005] Because the impurities generated during processing are metal shavings, these metal shavings are more likely to wear down the bearing rings. Once the mating surfaces of the ultra-quiet bearing rings are worn, it will cause errors in the ultra-quiet bearing. These scratch errors will make the assembled bearing run unevenly, and such bearing rings can no longer be used as ultra-quiet bearing components.

[0006] Based on this, the present invention designs a cleaning device for ultra-quiet bearings to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide a cleaning device for ultra-quiet bearings. This device facilitates the transfer of finished bearing rings through the cooperation of a cleaning rack and a material rod. The cleaning rack can be directly inserted into the vibration transmission joint, eliminating the need for further transfer. The bearing rings mounted on the material rod are fixedly placed in the cleaning tank for cleaning. This fixed position effectively prevents the bearing rings from colliding with each other during cleaning vibrations and scratching the ball grooves, reducing irreversible damage caused by cleaning. The device also utilizes ultrasonic vibration for cleaning. Furthermore, an air injection pipe is added to guide airflow into the hollow material rod and cleaning rack for distribution and air blowing through the bubble holes on the material rod, thereby cleaning the inner rings of the bearing rings mounted on the material rod, resulting in excellent cleaning performance.

[0008] This utility model is implemented as follows: a cleaning device for ultra-quiet bearings, comprising: Cleaning box, cleaning rack, air injection pipe and cleaning pool; The cleaning box is a hollow cabinet. A water storage tank and a water pump are installed at the bottom of the inner cavity of the cleaning box. The water inlet of the water pump is sealed to the bottom of the inner cavity of the water storage tank. The cleaning pool is a water pool with an open top. The cleaning pool fixing frame is installed on the top of the cleaning box. The cleaning pool and the cleaning box are an integral structure. The cleaning pool is fixedly installed above the water storage tank and the water pump. The bottom of the cleaning pool is equipped with an outlet pipe and an inlet pipe. The outlet pipe is sealed to the top of the inner cavity of the water storage tank, and the inlet pipe is sealed to the outlet of the water pump. An ultrasonic cleaner is also installed at the bottom of the cleaning tank, and multiple vibration transmission joints are fixedly installed at the bottom of the inner cavity of the cleaning tank. The vibration transmission joints are tubular bases with open tops. The cleaning rack is a horizontally arranged long tube, and a vibration transmission rod is vertically arranged at the bottom of the cleaning rack. The vibration transmission rod can be detachably and tightly inserted into the vibration transmission joint. The top of the cleaning rack is vertically equipped with multiple material rods, each of which is a straight tube with a closed top. The inner cavity of each material rod is sealed and connected to the inner cavity of the cleaning rack, and multiple air bubble holes are opened on the side wall of the material rod. Each of the material rods is arranged parallel to each other, and the lower end of each material rod is fixedly connected to the cleaning frame as an integral structure; The air injection pipe is a straight pipe with openings at both the top and bottom. The lower end of the air injection pipe is fixed to the top of the material rod, and the upper end of the air injection pipe is also provided with an air injection connector. The upper end of the air injection pipe is sealed and connected to the connecting pipe through the air injection connector.

[0009] Furthermore, the vibration transmission joint and the vibration transmission rod are in a transition fit; Multiple through holes are provided on the sidewalls of the vibration transmission rod and the vibration transmission joint, and the vibration transmission rod and the vibration transmission joint are positioned by pins. The vibration transmission rod is a square tube, and the top opening of the vibration transmission joint is a square hole.

[0010] Furthermore, the extension pipe is a flexible hose, and the extension pipe is connected to an external air pump.

[0011] Furthermore, the length of the air injection pipe is greater than the depth of the cleaning tank; The air injection connector extends above the opening at the top of the cleaning tank.

[0012] Furthermore, a drain valve is installed inside the water outlet pipe, and a filter screen is also covered on the water inlet of the water outlet pipe; The inlet pipe is also connected to a drain valve via a T-junction, and the drain valve extends outside the cleaning tank.

[0013] Furthermore, each of the material rods is fitted with a buffer washer at its lower end, and the buffer washer is spaced on the top plane of the washing rack; The cleaning rack is a closed square tube.

[0014] The beneficial effects of this utility model are: 1. This utility model increases the water circulation of the water pump, water storage tank and cleaning pool, which can conveniently transfer the cleaning liquid between the water storage tank and the cleaning pool, and facilitate the immersion of all bearing rings on the entire material rod below the surface of the cleaning liquid, thereby achieving the purpose of liquid rinsing. 2. This device also includes an ultrasonic cleaner, which is transmitted through a transmission connector and transmission rod. This allows the ultrasonic vibration to be transmitted to the bearing ring through the material rod. This not only provides a good cleaning effect, but also avoids pressing and brushing the ball groove mating surface of the bearing ring, effectively reducing the chance of damage to the mating ring surface. The cleaning effect is also better, which can effectively reduce the losses caused by cleaning the bearing ring. 3. This device also includes a feed rod and a cleaning frame, and is equipped with an air injection pipe. The bubble holes on the feed rod can spray out tiny bubbles, which are sprayed directly onto the inner ring of the stacked bearing rings. This allows for direct bubble cleaning of the inner wall of the bearing rings. The bursting of the bubbles will generate vibration and explosion, which can more effectively and specifically clean the adhering oil and other impurities. Furthermore, no hard objects come into contact with the bearing rings throughout the process, effectively protecting the bearing rings. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a top view of the cleaning tank structure of this utility model; Figure 3 This is a schematic diagram of the material rod and air injection pipe structure on a single cleaning rack of this utility model; Figure 4 This is a magnified schematic diagram of the bubble pore structure of this utility model; Figure 5 This is a schematic diagram of the locking part of the vibration transmission rod and vibration transmission joint in a disassembled state. Figure 6 This is a schematic diagram of the inner and outer ring structure of the bearing of this utility model.

[0017] The attached diagram lists the components represented by each number as follows: 1-Cleaning tank, 11-Water tank, 12-Water pump, 13-Drain valve, 2-Cleaning rack, 21-Material rod, 22-Vibration rod, 23-Vibration connector, 24-Buffer washer, 25-Bubble hole, 3-Air injection pipe, 31-Air injection connector, 32-Connecting pipe, 4-Cleaning pool, 41-Ultrasonic cleaner, 42-Outlet pipe, 43-Inlet pipe, 44-Drain valve. Detailed Implementation

[0018] Please see Figures 1 to 6 As shown, this utility model provides a cleaning device for ultra-quiet bearings. To better understand the above technical solution, the following will describe the above technical solution in detail with reference to the accompanying drawings and specific embodiments.

[0019] In a specific embodiment of the technical solution of this utility model: Includes cleaning box 1, cleaning rack 2, air injection pipe 3, and cleaning pool 4; The cleaning box 1 is a hollow cabinet. A water storage tank 11 and a water pump 12 are installed at the bottom of the inner cavity of the cleaning box 1. The water inlet of the water pump 12 is sealed to the bottom of the inner cavity of the water storage tank 11. A cabinet door is also required on the front of the cleaning box 1 to facilitate the disassembly of the water storage tank 11 for maintenance. The cleaning tank 4 is a water tank with an open top. The cleaning tank 4 is fixed on the top of the cleaning box 1. The cleaning tank 4 and the cleaning box 1 are an integral structure. The cleaning tank 4 is fixedly installed above the water storage tank 11 and the water pump 12. The water pump 12 is equipped with an electrical wire that extends outside the cleaning tank 1 for easy connection to electricity.

[0020] The bottom of the cleaning tank 4 is equipped with an outlet pipe 42 and an inlet pipe 43. The outlet pipe 42 is sealed to the top of the inner cavity of the water storage tank 11. The inlet of the outlet pipe 42 is also covered with a filter screen, which can be a very fine filter cloth to ensure that debris does not enter the water storage tank 11. A drain valve 13 is also installed inside the water outlet pipe 42. The drain valve 13 is a solenoid valve, which can conveniently control whether the cleaning fluid flows into the water storage tank 11.

[0021] The inlet pipe 43 is also connected to a drain valve 44 via a tee. The drain valve 44 extends outside the cleaning tank 1, which can conveniently drain excess cleaning fluid and can also be used to replace the cleaning fluid in the water storage tank 11.

[0022] The inlet pipe 43 is sealed to the outlet of the water pump 12, thereby forming a circulating water system with the cleaning tank 4, the water storage tank 11 and the water pump 12. Due to the need to pump the cleaning fluid, in order to avoid abnormal air pressure, a pressure relief valve is also required on the top of the water storage tank 11 to balance the air pressure. This valve can only allow air to enter and cannot drain water. Moreover, the cleaning fluid in the cleaning tank 4 and the water storage tank 11 needs to be able to be completely filled in the water storage tank 11. Therefore, the capacity of the water storage tank 11 needs to be larger than that of the cleaning tank 4. The depth of the water storage tank 11 can be appropriately increased to ensure that the capacity is larger than that of the cleaning tank 4.

[0023] An ultrasonic cleaner 41 is also installed at the bottom of the cleaning tank 4. Multiple vibration transmission connectors 23 are also fixedly installed at the bottom of the inner cavity of the cleaning tank 4. The vibration transmission connector 23 is a tubular base with an open top. The vibration transmission connector 23 and the vibration transmission rod 22 are in transition fit. Multiple through holes are provided on the side walls of both the vibration transmission rod 22 and the vibration transmission joint 23. The vibration transmission rod 22 and the vibration transmission joint 23 are positioned by pins; the pin locking is only used in special circumstances, such as when... When the lengths of both the vibration transmission joint 23 and the vibration transmission rod 22 reach 10cm or more, they can be directly plugged in. This allows for the transmission of vibrations without the vibrations causing the vibration transmission rod 22 and the vibration transmission joint 23 to separate, making disassembly and assembly more convenient.

[0024] The vibration transmission rod 22 is a square tube, and the top opening of the vibration transmission connector 23 is a square hole. The square tube structure ensures that the vibration transmission rod 22 and the vibration transmission connector 23 will not rotate relative to each other after mating, and the transition fit allows for a tighter connection, effectively transmitting vibration to achieve high-frequency vibration cleaning of the bearing ring. The vibration transmission connector 23 transmits vibration to the ultrasonic cleaner 41 through the bottom of the cleaning tank 4; the cleaning tank 4 and the ultrasonic cleaner 41 form a complete ultrasonic cleaning machine.

[0025] The cleaning rack 2 is a horizontally arranged long tube, and the bottom of the cleaning rack 2 is vertically arranged with a vibration transmission rod 22. The vibration transmission rod 22 can be tightly inserted into the vibration transmission joint 23. A large number of bearing rings are stacked and fitted on the material rod 21. Since the bearing rings are all circular, they are fitted on the material rod 21 and achieve the cleaning purpose through air bubbles and ultrasonic vibration.

[0026] Multiple material rods 21 are vertically installed on the top of the cleaning rack 2. Each material rod 21 is a straight tube with a closed top. The inner cavity of each material rod 21 is sealed and connected to the inner cavity of the cleaning rack 2. Multiple air bubble holes 25 are opened on the side wall of the material rod 21. Each air bubble hole 25 is connected to the inner cavity of the cleaning rack 2 through the material rod 21. Each material rod 21 is arranged parallel to each other, and the lower end of each material rod 21 is fixedly connected to the cleaning frame 2 as an integral structure; The air injection pipe 3 is a straight pipe open at both the top and bottom. The lower end of the air injection pipe 3 is fixed to the top of the material rod 21, and the upper end of the air injection pipe 3 is equipped with an air injection connector 31. The upper end of the air injection pipe 3 is sealed and connected to the extension pipe 32 through the air injection connector 31. The extension pipe 32 is a flexible hose and is connected to an external air pump. The air injection connector 31 is a quick-connect connector, which is a commonly used structure for achieving quick connection.

[0027] The cleaning rack 2 is a closed square tube. The cleaning rack 2 is only connected to the material rod 21 and the air injection pipe 3 to ensure that the air injected by the air injection pipe 3 is pushed out through the bubble hole 25 to clean the bearing ring.

[0028] The length of the air injection pipe 3 is greater than the depth of the cleaning pool 4; Air injection connector 31 extends above the top opening of the cleaning tank 4.

[0029] It should be noted that: Current bearing ring cleaning methods generally involve rinsing with cleaning fluid, although ultrasonic vibrators are sometimes used. However, this often involves dumping a large number of bearing rings directly into the water tank of the cleaning equipment. In this case, the bearing rings will squeeze against each other, forming a stacked misalignment. This can cause the edges of adjacent bearing rings to press against the outer ball grooves of another inner bearing ring. Since the bearings themselves have the same hardness and the annular edges are relatively sharp, this can lead to the bearing ring grooves being scratched by the edges of other bearings. Therefore, haphazardly stacked bearing rings are easily scratched, which will seriously affect the bearing's fit accuracy. Such bearing rings are not suitable for use in ultra-quiet bearings of high-precision equipment, especially under the high-frequency vibration of ultrasonic cleaning, where stacked bearing rings will cause an even greater chance of scratches. In this case, ultrasonic cleaning can no longer be used, and it can only be used as a bearing cleaning method for lower precision requirements. Water rinsing is the same; scattering the bearing rings everywhere will further increase the chance of collisions between the bearing rings. This conventional cleaning method cannot meet the cleaning requirements of ultra-quiet bearings. This device strings all the bearing rings onto the feed rod 1, with the bearing rings contacting each other at their upper and lower end faces. The bearing end faces do not affect stable operation, while the inner ring is cleaned by blowing air. Similarly, the inner ring diameter of the bearing ring is larger than the diameter of the feed rod 21. With this structure, the feed rod 21 cannot contact the recessed ball grooves in the inner ring of the bearing ring. Figure 6 As shown, the groove cannot directly contact the straight rod, thus effectively avoiding wear on the key mating surfaces. This cleaning method can effectively improve the cleaning effect of the bearing ring and also prevent the bearing ring from being scratched or damaged during cleaning.

[0030] In use, the bearing rings to be cleaned are fitted onto the material rod 21. A buffer washer 24 at the bottom of the bearing rings serves as a cushion. The cleaning frame 2 is then inserted into the vibration transmission joint 23 via the bottom vibration transmission rod 22, and secured with pins to lock the vibration transmission joint 23 and vibration transmission rod 22 together for vibration transmission. Normally, pins are not needed. Only when the vibration transmission joint 23 and vibration transmission rod 22 are relatively short, and the material rod 21 is relatively long with numerous bearing rings, and there is a risk of tipping, can different numbers of pins be used to increase the stability of the fit.

[0031] Then, cleaning fluid is injected into the cleaning tank 4 to ensure that all bearing rings are submerged below the surface of the cleaning fluid; then, the ultrasonic cleaner 41 is turned on, and high-frequency vibration is transmitted to the material rod 21 through the vibration transmission joint 23 and the vibration transmission rod 22, thereby performing ultrasonic cleaning on the bearing rings.

[0032] At the same time, the air injection pipe 3 is turned on, and high-pressure gas is blown out through the pipe and material rod 21 of the cleaning frame 2. The blown bubbles are directed at the inner ring surface of the bearing ring, thereby achieving the purpose of bubble cleaning. The adhesion and bursting of the bubbles will clean the bearing ring more deeply, resulting in a better cleaning effect.

[0033] After cleaning is completed, the drain valve 13 is opened to guide the cleaning fluid into the water storage tank 11, exposing the cleaning frame 2, making it easy to remove the entire material rod 21 and the cleaning frame 2. At the same time, the connecting pipe 32 is disassembled through the air injection connector 31.

[0034] The material rods 21 are fork-shaped structures in the same plane, and each material rod 21 is parallel to each other, which makes it easy to store the bearing rings that have been cleaned and mounted on them on the material tray. The bearing rings on the material rods 21 are stacked sequentially, so after taking them out, there is no need to sort them. They can be directly pushed and stored, making transportation more convenient.

[0035] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A cleaning device for ultra-quiet bearings, characterized in that, include: Cleaning box (1), cleaning rack (2), air injection pipe (3) and cleaning pool (4); The cleaning box (1) is a hollow cabinet. A water storage tank (11) and a water pump (12) are installed at the bottom of the inner cavity of the cleaning box (1). The water inlet of the water pump (12) is sealed to the bottom of the inner cavity of the water storage tank (11). The cleaning pool (4) is a water pool with an open top. The cleaning pool (4) is fixed on the top of the cleaning box (1). The cleaning pool (4) and the cleaning box (1) are an integral structure. The cleaning pool (4) is fixedly installed above the water storage tank (11) and the water pump (12). The bottom of the cleaning pool (4) is provided with an outlet pipe (42) and an inlet pipe (43). The outlet pipe (42) is sealed to the top of the inner cavity of the water storage tank (11), and the inlet pipe (43) is sealed to the outlet of the water pump (12). An ultrasonic cleaner (41) is also provided at the bottom of the cleaning tank (4), and multiple vibration transmission connectors (23) are fixedly provided at the bottom of the inner cavity of the cleaning tank (4). The vibration transmission connectors (23) are tubular bases with open tops. The cleaning rack (2) is a horizontally arranged long tube, and a vibration transmission rod (22) is vertically arranged at the bottom of the cleaning rack (2). The vibration transmission rod (22) can be separably and tightly inserted into the vibration transmission joint (23). The top of the cleaning rack (2) is vertically provided with multiple material rods (21), each material rod (21) being a straight tube with a closed top; the inner cavity of each material rod (21) is sealed and connected to the inner cavity of the cleaning rack (2), and multiple air bubble holes (25) are opened on the side wall of the material rod (21). Each of the material rods (21) is arranged parallel to each other, and the lower end of each material rod (21) is fixedly connected to the cleaning frame (2) as an integral structure; The air injection pipe (3) is a straight pipe with openings at both the top and bottom. The lower end of the air injection pipe (3) is fixed to the top of the material rod (21). An air injection connector (31) is also provided at the upper end of the air injection pipe (3). The upper end of the air injection pipe (3) is sealed and connected to the connecting pipe (32) through the air injection connector (31).

2. The cleaning device for ultra-quiet bearings according to claim 1, characterized in that: The vibration transmission joint (23) and the vibration transmission rod (22) are in transition fit; Multiple through holes are provided on the side walls of the vibration transmission rod (22) and the vibration transmission joint (23), and the vibration transmission rod (22) and the vibration transmission joint (23) are positioned by pins; The vibration transmission rod (22) is a square tube, and the top opening of the vibration transmission joint (23) is a square hole.

3. The cleaning device for ultra-quiet bearings according to claim 1, characterized in that: The extension pipe (32) is a flexible hose, and the extension pipe (32) is connected to an external air pump.

4. The cleaning device for ultra-quiet bearings according to claim 1, characterized in that: The length of the air injection pipe (3) is greater than the depth of the cleaning tank (4); The air injection connector (31) extends above the top opening of the cleaning tank (4).

5. The cleaning device for ultra-quiet bearings according to claim 1, characterized in that: A drain valve (13) is also installed inside the water outlet pipe (42), and a filter screen is also covered on the water inlet of the water outlet pipe (42); The inlet pipe (43) is also connected to a drain valve (44) via a tee, and the drain valve (44) extends outside the cleaning tank (1).

6. The cleaning device for ultra-quiet bearings according to claim 1, characterized in that: Each of the material rods (21) is also fitted with a buffer washer (24) at its lower end, the buffer washer (24) being spaced on the top plane of the cleaning rack (2); The cleaning rack (2) is a closed square tube.

Images