A spherical bearing with seat for cotton harvester

Abstract

The present invention belongs to the technical field of cotton harvesters, and discloses an outer spherical bearing with a seat for a cotton harvester, including a sealing mechanism, wherein the sealing mechanism includes a connecting plate, a clamping block is fixedly connected to the connecting plate, a sealing ring is fixedly connected to a side of the connecting plate away from the clamping block, and three sealing lips are fixedly connected to the bottom of the sealing ring; the present invention improves the sealing performance of the device by arranging the cooperation of structures such as sealing lips and support plates, and three layers of sealing lips are arranged between the outer ring and the inner ring to form multiple barriers, effectively isolate external pollutants, improve sealing performance, ensure that internal lubricant is not easy to lose, keep various bearing components fully lubricated, and reduce wear; when the bearing rotates at high speed, the heat generated by the bearing will support the sealing lips of the support plate through transmission, thereby avoiding the increase of external pressure due to high-speed rotation, which causes foreign matter to enter the interior of the bearing, and further improving the sealing performance of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of cotton harvesters, in particular to an outer spherical bearing with a seat for a cotton harvester. Background Art

[0002] As an important part of modern agricultural machinery, cotton harvesters play a vital role in the cotton harvesting season. Their complex working environment and high-intensity operation requirements place extremely high demands on various parts of the machine, especially the transmission and support systems. As a vital component, the performance of the spherical bearing with seat is directly related to the stability and working efficiency of the cotton harvester.

[0003] Most of the existing spherical bearings with seats for cotton harvesters only use a single-layer rubber ring for sealing, and do not have a protruding lip structure. They rely on the elastic deformation of the material to form a seal, which has no effect under static and low-speed conditions. However, at higher speeds and when the external pressure is high, the problem of insufficient sealing of the single-layer rubber ring will be reflected. Therefore, a spherical bearing with a seat for a cotton harvester is proposed. Summary of the invention

[0004] In order to solve the problem that most of the above background technologies only use a single-layer rubber ring for sealing and do not have a protruding lip structure, they rely on the elastic deformation of the material to form a seal, which has no effect under static and low-speed conditions, but at higher speeds and greater external pressure, the single-layer rubber ring will have insufficient sealing. The present invention provides a seated outer spherical bearing for a cotton harvester.

[0005] To achieve the above object, the present invention provides the following technical solution: a seated outer spherical bearing for a cotton harvester, comprising a sealing mechanism, the sealing mechanism is arranged inside an outer ring mechanism, a lubricating mechanism is arranged inside the outer ring mechanism, an inner ring mechanism (inner ring mechanism) is arranged inside the outer ring mechanism, the inner ring mechanism is located inside the lubricating mechanism, and the sealing mechanism is located between the outer ring mechanism and the inner ring mechanism;

[0006] The sealing mechanism comprises a connecting plate, a card block is fixedly connected to the connecting plate, a sealing ring is fixedly connected to a side of the connecting plate away from the card block, three sealing lips are fixedly connected to the bottom of the sealing ring, a plurality of ventilation grooves are evenly arranged inside the sealing ring, two first air bags are arranged between the three sealing lips, a plurality of air storage grooves are evenly arranged inside the sealing ring, a piston rod is slidably connected inside the air storage groove, and a support plate is fixedly connected to the piston rod;

[0007] The lubrication mechanism includes a slip ring, a plurality of first lubrication holes are evenly opened on the slip ring, a plurality of second lubrication holes are evenly opened on the slip ring, a spring is fixedly connected to one side of the first lubrication hole of the slip ring, a second air bag is arranged on the side of the slip ring away from the spring, the second lubrication hole is located between the oil injection hole and the second air bag, the size of the second lubrication hole is larger than the size of the first lubrication hole, and the size of the slip ring is the same as the size of the oil injection hole.

[0008] Preferably, one end of the piston rod close to the support plate passes through the air storage groove and extends to the side of the sealing lip away from the first airbag, the first airbag is located between the two sealing lips, the support plate has a triangular shape, and the ventilation grooves are divided into several groups of two, the number of the air storage grooves is the same as the number of the groups of ventilation grooves, the groups of ventilation grooves are respectively communicated with the several air storage grooves, and the side of each group of ventilation grooves away from the air storage groove is respectively communicated with two first airbags.

[0009] Preferably, the outer ring mechanism includes an outer ring, the inner wall of the outer ring is provided with a groove, the outer ring is provided with an oil filling hole, a sealing plug is clamped inside the oil filling hole, a plurality of positioning holes are evenly provided on the outer ring, an oil storage groove is provided inside the outer ring, a cavity is provided inside the outer ring, and a slide groove is provided inside the outer ring.

[0010] Preferably, the slide groove is located on a side of the oil storage tank away from the sealing plug, the oil filling hole runs through the oil storage tank and the slide groove, and the cavity is located between the oil filling hole and the positioning hole.

[0011] Preferably, the cavity is located on a side of the slide slot close to the positioning hole, the cavity is communicated with the slide slot, the size of the clamping slot is matched with the size of the clamping block, and the clamping block is clamped with the slot.

[0012] Preferably, the slip ring is slidably connected to the slide groove, the side of the slip ring away from the second airbag is elastically connected to the inner wall of the slide groove through a spring, the side of the second airbag away from the slip ring is directly fixedly connected to the inner wall of the cavity, the cavity is communicated with the interior of the second airbag, the side of the second airbag away from the cavity is abutted against the side of the slip ring away from the spring, and the first lubrication hole is communicated with the oil filling hole.

[0013] Preferably, the inner ring mechanism comprises an inner ring, a groove is formed on the inner ring, a plurality of balls are slidably connected to the groove, the plurality of balls are slidably connected between two retaining frames, and the two retaining frames are connected by rivets.

[0014] Preferably, a groove is formed on the inner wall of the outer ring, the connecting plate is located between the outer ring and the inner ring, the end of the sealing lip away from the sealing ring abuts against the inner ring, and the cavity is located on the side of the ball away from the inner ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention improves the sealing performance of the device by providing the cooperation of the sealing lip and the support plate and other structures. The three-layer sealing lip is provided between the outer ring and the inner ring, which can form a multiple barrier, effectively isolate external pollutants, improve the sealing performance, and ensure that the internal lubricant is not easy to lose, keep the various parts of the bearing fully lubricated, reduce wear, and at the same time, prevent the invasion of dust, moisture, etc., and greatly extend the service life of the bearing. When the bearing rotates at high speed, the heat generated by the bearing will support the sealing lip of the support plate through the transmission, avoiding the increase of external pressure due to high-speed rotation, so that foreign matter enters the interior of the bearing, further improving the sealing performance of the device, thereby improving the operation stability and reliability. At the same time, improving the sealing performance can avoid the leakage caused by rapid replenishment of lubricant during high-speed rotation.

[0017] The present invention solves the problem of insufficient lubricant supply when the bearing rotates at high speed by arranging the cooperation of structures such as slip rings and slide grooves. When the bearing starts to rotate, the lubricating oil will form a thin oil film between the groove and the ball to reduce direct contact between metals. As the bearing rotates, this part of the oil film will be consumed. At this time, the lubricating oil passing through the first lubrication hole can make up for the consumption of the lubricating oil inside the bearing, avoiding energy waste. When the bearing rotates at high speed, the heat generated will accelerate the evaporation of the lubricating oil. At this time, the lubricating oil passing through the first lubrication hole is insufficient to make up for the consumption of the lubricating oil inside the bearing. Therefore, through heat conduction, the lubricating oil inside the oil storage tank can enter the bearing through the larger second lubrication hole to supplement the lubricating oil that is quickly consumed inside the bearing. More lubricant can effectively take away the extra heat generated, maintain the stable bearing temperature, reduce metal friction, and extend the service life. At the same time, sufficient lubricant ensures lubrication continuity and improves operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the top view of the outer ring mechanism of the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the outer ring mechanism of the present invention;

[0021] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0022] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0023] Figure 6 This is a schematic diagram of the structural relationship between the inner ring and the sealing lip of the present invention;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the lubrication mechanism of the present invention;

[0025] Figure 8 This is a schematic diagram of the internal structure of the outer ring mechanism of the present invention;

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of the sealing mechanism of the present invention.

[0027] In the figure: 1. Sealing mechanism; 101. Connecting plate; 102. Block; 103. Sealing ring; 104. Sealing lip; 105. Vent; 106. First airbag; 107. Air storage tank; 108. Piston rod; 109. Support plate; 2. Outer ring mechanism; 201. Outer ring; 202. Slot; 203. Oil filling hole; 204. Sealing plug; 205. Positioning hole; 206. Oil storage tank; 207. Cavity; 208. Slide; 3. Lubricating mechanism; 301. Slip ring; 302. First lubrication hole; 303. Second lubrication hole; 304. Spring; 305. Second airbag; 4. Inner ring mechanism; 401. Inner ring; 402. Groove; 403. Ball; 404. Retaining frame; 405. Rivet. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 9 As shown, the present invention provides a seated outer spherical bearing for a cotton harvester, comprising a sealing mechanism 1, the sealing mechanism 1 is arranged inside an outer ring mechanism 2, a lubricating mechanism 3 is arranged inside the outer ring mechanism 2, an inner ring mechanism 4 is arranged inside the outer ring mechanism 2, the inner ring mechanism 4 is located inside the lubricating mechanism 3, and the sealing mechanism 1 is located between the outer ring mechanism 2 and the inner ring mechanism 4;

[0030] The sealing mechanism 1 includes a connecting plate 101, to which a clamping block 102 is fixedly connected, a sealing ring 103 is fixedly connected on the side of the connecting plate 101 away from the clamping block 102, three sealing lips 104 are fixedly connected to the bottom of the sealing ring 103, a plurality of ventilation grooves 105 are evenly arranged inside the sealing ring 103, two first air bags 106 are arranged between the three sealing lips 104, a plurality of air storage grooves 107 are evenly arranged inside the sealing ring 103, a piston rod 108 is slidably connected inside the air storage groove 107, and a support plate 109 is fixedly connected to the piston rod 108.

[0031] One end of the piston rod 108 close to the support plate 109 passes through the air storage groove 107 and extends to the side of the sealing lip 104 away from the first airbag 106. The first airbag 106 is located between the two sealing lips 104. The support plate 109 has a triangular shape. The ventilation grooves 105 are divided into several groups of two. The number of air storage grooves 107 is the same as the number of groups of ventilation grooves 105. The several groups of ventilation grooves 105 are respectively communicated with the several air storage grooves 107, and the side of each group of ventilation grooves 105 away from the air storage groove 107 is respectively communicated with the two first airbags 106.

[0032] The outer ring mechanism 2 includes an outer ring 201, the inner wall of the outer ring 201 is provided with a slot 202, the outer ring 201 is provided with an oil filling hole 203, the inside of the oil filling hole 203 is clamped with a sealing plug 204, a plurality of positioning holes 205 are evenly provided on the outer ring 201, the inside of the outer ring 201 is provided with an oil storage groove 206, the inside of the outer ring 201 is provided with a cavity 207, and the inside of the outer ring 201 is provided with a slide groove 208.

[0033] The inner ring mechanism 4 includes an inner ring 401, a groove 402 is formed on the inner ring 401, a plurality of balls 403 are slidably connected to the groove 402, the plurality of balls 403 are slidably connected between two retaining frames 404, the two retaining frames 404 are connected by rivets 405, a groove 402 is formed on the inner wall of the outer ring 201, the connecting plate 101 is located between the outer ring 201 and the inner ring 401, the end of the sealing lip 104 away from the sealing ring 103 abuts against the inner ring 401, and the cavity 207 is located on the side of the ball 403 away from the inner ring 401.

[0034] The above scheme is adopted: by setting the cooperation of the sealing lip 104 and the support plate 109 and other structures, the sealing performance of the device is improved. The three-layer sealing lip 104 is set between the outer ring 201 and the inner ring 401, which can form multiple barriers, effectively isolate external pollutants, improve the sealing performance, and ensure that the internal lubricant is not easy to lose, keep the various parts of the bearing fully lubricated, reduce wear, and at the same time, by preventing the invasion of dust, moisture, etc., the service life of the bearing is greatly extended. When the bearing rotates at a high speed, the heat generated by the bearing will cause the gas inside the first airbag 106 to expand, increase the air pressure, and push the piston rod 108 through the ventilation groove 105 in the air storage groove 107 to move away from the ventilation groove 105, so that the side of the support plate 109 away from the piston rod 108 is against the sealing lip 104, and the sealing lip 104 is supported, so as to avoid the increase of external pressure due to high-speed rotation, so that foreign matter enters the bearing, and further improve the sealing performance of the device, thereby improving the operation stability and reliability. At the same time, improving the sealing performance can avoid the leakage caused by rapid replenishment of lubricant during high-speed rotation.

[0035] like Figures 3 to 7 As shown, the slide groove 208 is located on the side of the oil storage tank 206 away from the sealing plug 204, the oil filling hole 203 passes through the oil storage tank 206 and the slide groove 208, the cavity 207 is located between the oil filling hole 203 and the positioning hole 205, the cavity 207 is located on the side of the slide groove 208 close to the positioning hole 205, the cavity 207 and the slide groove 208 are communicated, the size of the slot 202 is adapted to the size of the block 102, and the block 102 and the slot 202 are snap-connected.

[0036] The lubrication mechanism 3 includes a slip ring 301, on which a plurality of first lubrication holes 302 are evenly provided, and a plurality of second lubrication holes 303 are evenly provided. A spring 304 is fixedly connected to one side of the first lubrication hole 302 of the slip ring 301, and a second air bag 305 is provided on the side of the slip ring 301 away from the spring 304. The second lubrication hole 303 is located between the oil filling hole 203 and the second air bag 305. The size of the second lubrication hole 303 is larger than that of the first lubrication hole 302, and the size of the slip ring 301 is the same as that of the oil filling hole 203.

[0037] The slip ring 301 is slidably connected to the slide groove 208. The side of the slip ring 301 away from the second air bag 305 is elastically connected to the inner wall of the slide groove 208 through the spring 304. The side of the second air bag 305 away from the slip ring 301 is directly fixedly connected to the inner wall of the cavity 207. The cavity 207 is communicated with the interior of the second air bag 305. The side of the second air bag 305 away from the cavity 207 is against the side of the slip ring 301 away from the spring 304. The first lubrication hole 302 is communicated with the oil filling hole 203.

[0038] The above scheme is adopted: by setting the cooperation of the structures such as the slip ring 301 and the slide groove 208, the problem of insufficient lubricant supply when the bearing rotates at high speed is solved. When the bearing starts to rotate, the lubricating oil will form a thin oil film between the groove 402 and the ball 403 to reduce the direct contact between the metals. As the bearing rotates, this part of the oil film will be consumed. At this time, the lubricating oil passing through the first lubricating hole 302 can make up for the consumption of the lubricating oil inside the bearing, avoiding energy waste. When the bearing rotates at high speed, the heat generated will accelerate the evaporation of the lubricating oil. At this time, the lubricating oil passing through the first lubricating hole 302 is insufficient to make up for the consumption of the lubricating oil inside the bearing, so the temperature between the ball 403 and the groove 402 will increase, and the air will be heated by heat conduction. The air temperature inside the cavity 207 rises and expands, increasing the air pressure inside the cavity 207. The air pressure gradually fills the second airbag 305 and pushes the slip ring 301 toward the side away from the cavity 207, causing the slip ring 301 to slide inside the slide groove 208 toward the spring 304, driving the second lubrication hole 303 to align with the oil filling hole 203 and squeeze the spring 304, so that the lubricating oil inside the oil storage tank 206 can enter the bearing through the second lubrication hole 303 with a larger size, replenishing the lubricating oil that is quickly consumed inside the bearing. More lubricant can effectively take away the extra heat generated, maintain the stable bearing temperature, reduce metal-to-metal friction, and extend the service life. At the same time, sufficient lubricant ensures lubrication continuity and improves operating efficiency.

[0039] The working principle and use process of the present invention are as follows: first, the sealing plug 204 is removed, and then lubricating oil is injected into the oil storage tank 206 through the oil filling hole 203. Then, the oil filling hole 203 on the side of the oil storage tank 206 away from the slip ring 301 is sealed by the sealing plug 204. In the non-working state, the position of the slip ring 301 is as follows: Figure 5As shown in the figure, the lubricating oil in the oil storage tank 206 will slowly drip into the space between the outer ring 201 and the inner ring 401 through the first lubricating hole 302 to lubricate the ball 403. When the bearing starts to rotate, the lubricating oil will form a thin oil film between the groove 402 and the ball 403 to reduce the direct contact between the metals. As the bearing rotates, this part of the oil film will be consumed. At this time, the lubricating oil passing through the first lubricating hole 302 can make up for the consumption of the lubricating oil inside the bearing. When the bearing rotates at a high speed, the heat generated will accelerate the evaporation of the lubricating oil. At this time, the lubricating oil passing through the first lubricating hole 302 is insufficient to make up for the lubricating oil inside the bearing. The temperature between the ball 403 and the groove 402 will increase, and the air temperature inside the cavity 207 will increase and expand through heat conduction, so that the air pressure inside the cavity 207 increases, and the second airbag 305 is gradually filled by the air pressure and pushes the slip ring 301 to the side away from the cavity 207, so that the slip ring 301 slides in the slide groove 208 toward the direction close to the spring 304, driving the second lubrication hole 303 to align with the oil filling hole 203 and squeeze the spring 304, so that the lubricating oil in the oil storage tank 206 can enter the bearing through the second lubrication hole 303 with a larger size, so as to replenish the lubricating oil that is quickly consumed inside the bearing;

[0040] The three-layer sealing lip 104 is arranged between the outer ring 201 and the inner ring 401 to form a multiple barrier, effectively isolating external pollutants and improving the sealing performance. When the bearing rotates at high speed, the heat generated by the bearing will expand the gas inside the first airbag 106, increase the air pressure and push the piston rod 108 through the ventilation groove 105 in the air storage groove 107 to move away from the ventilation groove 105, so that the side of the support plate 109 away from the piston rod 108 is against the sealing lip 104 to support the sealing lip 104, thereby preventing the external pressure from increasing due to high-speed rotation and entering the interior of the bearing, further improving the sealing of the device, thereby improving the operating stability and reliability. At the same time, improving the sealing can avoid leakage caused by rapid replenishment of lubricant during high-speed rotation.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spherical bearing with a seat for a cotton harvester, comprising a sealing mechanism (1), characterized in that: The sealing mechanism (1) is arranged inside the outer ring mechanism (2), a lubricating mechanism (3) is arranged inside the outer ring mechanism (2), an inner ring mechanism (4) is arranged inside the outer ring mechanism (2), the inner ring mechanism (4) is located inside the lubricating mechanism (3), and the sealing mechanism (1) is located between the outer ring mechanism (2) and the inner ring mechanism (4); The sealing mechanism (1) comprises a connecting plate (101), a clamping block (102) is fixedly connected to the connecting plate (101), a sealing ring (103) is fixedly connected to a side of the connecting plate (101) away from the clamping block (102), three sealing lips (104) are fixedly connected to the bottom of the sealing ring (103), a plurality of venting grooves (105) are evenly arranged inside the sealing ring (103), two first air bags (106) are arranged between the three sealing lips (104), a plurality of air storage grooves (107) are evenly arranged inside the sealing ring (103), a piston rod (108) is slidably connected inside the air storage groove (107), and a support plate (109) is fixedly connected to the piston rod (108); The outer ring mechanism (2) comprises an outer ring (201), the inner wall of the outer ring (201) is provided with a slot (202), the outer ring (201) is provided with an oil filling hole (203), the inside of the oil filling hole (203) is clamped with a sealing plug (204), the outer ring (201) is evenly provided with a plurality of positioning holes (205), the inside of the outer ring (201) is provided with an oil storage groove (206), the inside of the outer ring (201) is provided with a cavity (207), and the inside of the outer ring (201) is provided with a slide groove (208); The lubrication mechanism (3) comprises a slip ring (301), a plurality of first lubrication holes (302) are evenly formed on the slip ring (301), a plurality of second lubrication holes (303) are evenly formed on the slip ring (301), a spring (304) is fixedly connected to one side of the first lubrication hole (302) of the slip ring (301), a second air bag (305) is provided on the side of the slip ring (301) away from the spring (304), the second lubrication hole (303) is located between the oil injection hole (203) and the second air bag (305), and the size of the second lubrication hole (303) is larger than the size of the first lubrication hole (302).

2. The outer spherical bearing with seat for cotton harvester according to claim 1, characterized in that: One end of the piston rod (108) close to the support plate (109) passes through the air storage groove (107) and extends to a side of the sealing lip (104) away from the first airbag (106), the first airbag (106) is located between the two sealing lips (104), the support plate (109) has a triangular shape, the plurality of ventilation grooves (105) are divided into a plurality of groups of two, the number of the plurality of air storage grooves (107) is the same as the number of the plurality of groups of ventilation grooves (105), the plurality of groups of ventilation grooves (105) are respectively communicated with the plurality of air storage grooves (107), and the side of each group of ventilation grooves (105) away from the air storage groove (107) is respectively communicated with between the two first airbags (106).

3. The outer spherical bearing with seat for cotton harvester according to claim 1, characterized in that: The slide groove (208) is located on a side of the oil storage groove (206) away from the sealing plug (204), the oil injection hole (203) penetrates the oil storage groove (206) and the slide groove (208), and the cavity (207) is located between the oil injection hole (203) and the positioning hole (205).

4. The outer spherical bearing with seat for cotton harvester according to claim 1, characterized in that: The cavity (207) is located on a side of the slide groove (208) close to the positioning hole (205), the cavity (207) is communicated with the slide groove (208), the size of the clamping groove (202) is adapted to the size of the clamping block (102), and the clamping block (102) is clamped with the clamping groove (202).

5. The outer spherical bearing with seat for cotton harvester according to claim 1, characterized in that: The slip ring (301) is slidably connected to the slide groove (208); the side of the slip ring (301) away from the second airbag (305) is elastically connected to the inner wall of the slide groove (208) via the spring (304); the side of the second airbag (305) away from the slip ring (301) is directly fixedly connected to the inner wall of the cavity (207); the cavity (207) is communicated with the interior of the second airbag (305); the side of the second airbag (305) away from the cavity (207) abuts against the side of the slip ring (301) away from the spring (304); and the first lubrication hole (302) is communicated with the oil filling hole (203).

6. The outer spherical bearing with seat for cotton harvester according to claim 1, characterized in that: The inner ring mechanism (4) comprises an inner ring (401), the inner ring (401) is provided with a groove (402), a plurality of balls (403) are slidably connected to the groove (402), the plurality of balls (403) are slidably connected between two retaining frames (404), and the two retaining frames (404) are connected via rivets (405).

7. The outer spherical bearing with seat for cotton harvester according to claim 6, characterized in that: A groove (402) is provided on the inner wall of the outer ring (201), the connecting plate (101) is located between the outer ring (201) and the inner ring (401), one end of the sealing lip (104) away from the sealing ring (103) abuts against the inner ring (401), and the cavity (207) is located on a side of the ball (403) away from the inner ring (401).

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