Bearing seat capable of preventing thermal deformation

Abstract

The utility model discloses a thermal deformation prevention bearing seat which comprises a lower base, an upper cover is connected to the top of the lower base, and mounting plates are fixed to the two sides of the upper cover and the two sides of the lower base. A lining is fixed in the upper cover, a contact face is arranged on the inner side face of the lining, an oil storage cavity is formed in the lining, oil conveying channels are arranged between the oil storage cavity and the contact face at equal angles, and blocking plates are connected to the inner walls of the oil conveying channels. According to the bearing seat capable of preventing thermal deformation, when a bearing rotates at a high speed for a long time, a large amount of heat can be generated, at the moment, a connecting spring in a lining deforms due to the heat sensitive characteristic, a sliding block is pushed to move, meanwhile, a movable plate is driven to move, and an oil conveying channel is not blocked any more; and at the moment, the lubricating oil in the oil storage cavity enters the contact surface from the oil conveying channel and self-lubricates the bearing, so that heat generated by friction is reduced, and thermal expansion deformation of the bearing seat caused by high temperature is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bearing housing technology, specifically a bearing housing that is resistant to thermal deformation. Background Technology

[0002] Bearing housings are fundamental components in mechanical systems used to support bearings, fix the position of shafts, and bear the loads on the shafts. Their core function is to connect the rotational motion of the bearing to the frame or other components, ensuring the stability and reliability of the mechanical system. However, current bearing housings on the market have drawbacks: they are simple in structure and have limited function, lacking dedicated heat dissipation devices. Bearings are prone to failure during operation due to insufficient heat dissipation, reducing the lifespan of both the bearing and the housing. Furthermore, lubrication requires disassembling the bearing to add lubricant, a cumbersome and inconvenient process. To address these shortcomings, existing technology (application number: 202020937900.X, authorized announcement date: 2020) provides a solution. (Chinese Patent No. 021-03-23) A self-lubricating and overheat-preventing bearing housing is provided. The addition of a lubrication component enables the bearing housing to achieve self-lubrication, and the addition of a limiting component helps save lubricating oil. The addition of a heat dissipation component accelerates heat dissipation from the bearing housing and bearing, preventing overheating and affecting operation, thus improving work efficiency to a certain extent. The system involves a coating sponge, a sliding plate, a sliding rod, a ball, and a sliding spring working together to allow lubricating oil to flow from the gap between the sliding rod and the oil outlet hole, and then flow along the sliding rod onto the coating sponge. The coating sponge applies the lubricating oil to the outer wall of the bearing for lubrication. When the lubricating oil is used up, the rubber stopper is opened, and lubricating oil is injected through the oil filling hole.

[0003] Existing technology uses lubrication components to lubricate and dissipate heat from the bearing housing and bearing, preventing overheating that could affect operation. However, continuous lubrication during bearing operation leads to excess grease accumulating in the bearing housing gaps, which easily attracts dust and forms "sludge," accelerating wear. This sludge also adheres to the surface of the bearing housing's heat dissipation fins, reducing the bearing housing's heat dissipation efficiency and causing uneven expansion and deformation of different parts of the bearing housing due to temperature gradients. Therefore, we propose a bearing housing designed to prevent thermal deformation, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a bearing housing that is resistant to thermal deformation, in order to solve the problems mentioned in the background art, which are caused by continuous lubrication of the bearing during operation, resulting in excess grease accumulating in the gaps of the bearing housing, easily attracting dust to form "sludge", aggravating wear, and causing sludge to adhere to the surface of the heat dissipation fins of the bearing housing, leading to a decrease in the heat dissipation efficiency of the bearing housing, and causing uneven expansion and deformation of various parts of the bearing housing due to temperature gradient.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-resistant bearing housing, comprising a lower base, a top cover connected to the top of the lower base, and mounting plates fixed to both sides of the top cover and the lower base; further comprising: a bushing fixed inside the top cover, a contact surface provided on the inner side of the bushing, an oil storage cavity opened inside the bushing, and an oil delivery channel provided at equal angles between the oil storage cavity and the contact surface, a sealing plate connected to the inner wall of the oil delivery channel, and a slider fixedly connected to the bottom right side of the sealing plate, a connecting spring installed between the end of the slider and the inner wall of the bushing, and threaded holes opened inside the mounting plates, with fixing bolts threadedly connected to the inner walls of the threaded holes.

[0006] Preferably, the sealing plate and the oil delivery channel are sealed together, and the sealing plate is slidably connected inside the bushing by a slider, and the connecting spring is made of nickel-titanium alloy.

[0007] Preferably, the upper cover and the lower base are fixedly installed together by a mounting plate and fixing bolts.

[0008] Preferably, the mounting plate described below is internally connected to a drive rod, and a limit rod is symmetrically slidably connected inside the mounting plate about the center point of the drive rod. The limit rod and the drive rod are connected by a movable plate. A return spring is installed between the outer side of the drive rod and the inner wall of the mounting plate, and a limit groove is formed on the side of the fixing bolt.

[0009] Preferably, the bottom of the drive rod extends out of the outer surface of the mounting plate, and the drive rod is slidably disposed inside the mounting plate, with the position of the limiting rod corresponding to the position of the limiting groove.

[0010] Preferably, both ends of the movable plate are hinged to the top of the drive rod and the end of the limiting rod, respectively.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the heat-resistant bearing housing adopts a novel structural design, the specific details of which are as follows:

[0012] (1) When the bearing rotates at high speed for a long time, a lot of heat will be generated. At this time, the connecting spring in the bushing will deform due to its heat-sensitive characteristics and push the slider to move. At the same time, it will drive the movable plate to move and no longer block the oil supply channel. At this time, the lubricating oil in the oil storage cavity will enter the contact surface from the oil supply channel and self-lubricate the bearing, thereby reducing the heat generated by friction and avoiding thermal expansion deformation of the bearing seat due to high temperature. Furthermore, since the connecting spring is made of memory metal, when the bearing seat temperature drops, the connecting spring will return to the compressed state and drive the sealing plate to reset and block the oil supply channel.

[0013] (2) By unscrewing the cover plate on the oil filling hole, lubricating oil can be added into the oil storage chamber, which facilitates subsequent lubrication. The cover plate is then screwed into the oil filling hole to seal it.

[0014] (3) When it is necessary to remove the top cover, pull down the drive rod and pull the limit rod and limit groove through the movable plate to release the limit on the fixing bolt. Then use a tool to unscrew the fixing bolt to release the fixing of the mounting plate, so that the top cover can be removed quickly and subsequent maintenance work can be facilitated.

[0015] (4) Align the mounting plate of the upper cover with the mounting plate of the lower base, insert the fixing bolt into the threaded hole on the mounting plate, and tighten it with a tool. At this time, the limiting rod is squeezed and moves. When the fixing bolt corresponds to the position of the limiting groove, the limiting rod is reset under the action of the reset spring, the drive rod and the movable plate, and is inserted into the limiting groove, which can limit the fixing bolt, thereby improving the stability of the installation of the upper cover and the lower base. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the connection structure between the contact surface and the bushing of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the upper cover and lower base of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the oil storage chamber and the bushing of this utility model;

[0020] Figure 5 This is a schematic diagram of the separation structure of the fixing bolt and the mounting plate in this utility model;

[0021] Figure 6 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0022] Figure 7 This utility model Figure 3 Enlarged structural diagram at point B.

[0023] In the diagram: 1. Lower base; 2. Upper cover; 3. Mounting plate; 4. Bushing; 5. Contact surface; 6. Fixing bolt; 7. Oil storage chamber; 8. Oil delivery channel; 9. Sealing plate; 10. Slider; 11. Connecting spring; 12. Limiting rod; 13. Drive rod; 14. Movable plate; 15. Return spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-7 The present invention provides the following technical solution: a bearing housing that is resistant to heat deformation;

[0026] Example 1: To address the problem in the prior art where continuous lubrication of the bearing during operation leads to excess grease accumulation in the bearing housing gaps, which easily attracts dust and forms "sludge," accelerating wear, and causing the sludge to adhere to the surface of the bearing housing's heat dissipation fins, resulting in reduced heat dissipation efficiency and uneven expansion and deformation of different parts of the bearing housing due to temperature gradients, the following solution is disclosed. Please refer to the following for details. Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the device includes a lower base 1, with an upper cover 2 connected to the top of the lower base 1. Mounting plates 3 are fixed to both sides of the upper cover 2 and the lower base 1. It also includes a bushing 4 fixed inside the upper cover 2, with a contact surface 5 on the inner side of the bushing 4. An oil storage chamber 7 is opened inside the bushing 4, and an oil delivery channel 8 is provided at an equal angle between the oil storage chamber 7 and the contact surface 5. A sealing plate 9 is connected to the inner wall of the oil delivery channel 8, and a slider 10 is fixedly connected to the bottom right side of the sealing plate 9. A connecting spring 11 is installed between the end of the slider 10 and the inner wall of the bushing 4. The sealing plate 9 and the oil delivery channel 8 are sealed together, and the sealing plate 9 is slidably connected inside the bushing 4 via the slider 10. The connecting spring 11 is made of nickel-titanium alloy. Lubricating oil can be added to the oil storage chamber 7 by unscrewing the cover plate on the oil filling hole, facilitating subsequent lubrication. The cover plate is then screwed tightly into the oil filling hole to seal it.

[0027] The bearing is installed inside the bearing housing. When the bearing rotates at high speed for a long time, it will generate a lot of heat. At this time, the connecting spring 11 in the bushing 4 deforms due to its heat-sensitive characteristics and pushes the slider 10 to move. At the same time, it drives the sealing plate 9 to move and no longer blocks the oil channel 8. At this time, the lubricating oil in the oil storage chamber 7 enters the contact surface 5 from the oil channel 8 (where the contact surface 5 is a porous metal material, such as sintered bronze or porous stainless steel) and self-lubricates the bearing, thereby reducing the heat generated by friction and preventing the bearing housing from thermal expansion and deformation due to high temperature. Since the connecting spring 11 is made of shape memory metal, when the bearing housing temperature drops, the connecting spring 11 will return to the compressed state and drive the sealing plate 9 to reset and block the oil channel 8.

[0028] Example 2: Unlike Example 1, in this example, the upper cover 2 and the lower base 1 are fixedly installed together using fixing bolts 6 and mounting plate 3. See details... Figure 1 , Figure 3 , Figure 5 and Figure 7 As shown, the mounting plate 3 has threaded holes inside, and the inner wall of the threaded holes is connected with fixing bolts 6. The upper cover 2 and the lower base 1 are fixedly installed together by the mounting plate 3 and fixing bolts 6.

[0029] Align the mounting plate 3 of the upper cover 2 with the mounting plate 3 on the lower base 1, insert the fixing bolts 6 into the threaded holes on the mounting plate 3, and then the workers use tools to tighten them in sequence to complete the installation of the upper cover 2 and the lower base 1.

[0030] Example 3: Unlike Example 2, this example uses a limiting rod 12 inserted into a limiting groove to limit the fixing bolt 6, thereby improving the stability of the installation of the upper cover 2 and the lower base 1. See details... Figure 1 , Figure 3 , Figure 5 and Figure 7 As shown, a drive rod 13 is connected inside the mounting plate 3 below, and a limit rod 12 is symmetrically slidably connected inside the mounting plate 3 about the center point of the drive rod 13. The limit rod 12 and the drive rod 13 are connected by a movable plate 14. A return spring 15 is installed between the outer side of the drive rod 13 and the inner wall of the mounting plate 3. A limit groove is opened on the side of the fixing bolt 6. The bottom of the drive rod 13 extends out of the outer surface of the mounting plate 3, and the drive rod 13 is slidably set inside the mounting plate 3. The position of the limit rod 12 corresponds to the position of the limit groove. Both ends of the movable plate 14 are hinged to the top of the drive rod 13 and the end of the limit rod 12, respectively.

[0031] When it is necessary to remove the upper cover 2, pull down the drive rod 13 and pull the limiting rod 12 away from the limiting groove through the movable plate 14 to release the limitation on the fixing bolt 6. Then, use a tool to unscrew the fixing bolt 6 to release the fixation on the mounting plate 3, so that the upper cover 2 can be quickly removed and subsequent maintenance work can be facilitated. Then, align the mounting plate 3 of the upper cover 2 with the mounting plate 3 on the lower base 1, insert the fixing bolt 6 into the threaded hole on the mounting plate 3, and tighten it with a tool. At this time, the limiting rod 12 is squeezed and moves. When the position of the fixing bolt 6 corresponds to the limiting groove, the limiting rod 12 is reset under the action of the return spring 15, the drive rod 13 and the movable plate 14, and inserts into the limiting groove, which can limit the fixing bolt 6, thereby improving the stability of the installation of the upper cover 2 and the lower base 1.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat deformation resistant bearing seat, comprising a lower base (1), a top of the lower base (1) is connected with an upper cover (2), and both sides of the upper cover (2) and the lower base (1) are fixed with mounting plates (3); characterized in that, Also includes: The upper cover (2) is fixed with a bushing (4) inside, and the inner side of the bushing (4) is provided with a contact surface (5). The bushing (4) is provided with an oil storage cavity (7) inside, and an oil delivery channel (8) is provided at an equal angle between the oil storage cavity (7) and the contact surface (5). The inner wall of the oil delivery channel (8) is connected with a sealing plate (9), and a slider (10) is fixedly connected to the bottom right side of the sealing plate (9). A connecting spring (11) is installed between the end of the slider (10) and the inner wall of the bushing (4). The mounting plate (3) is provided with threaded holes inside, and a fixing bolt (6) is threadedly connected to the inner wall of the threaded hole.

2. The hot deformation resistant chock of claim 1 wherein: The sealing plate (9) is sealed to the oil channel (8), and the sealing plate (9) is slidably connected to the inside of the bushing (4) by the slider (10). The connecting spring (11) is made of nickel-titanium alloy.

3. The hot deformation resistant chock of claim 1 wherein: The upper cover (2) and the lower base (1) are fixedly installed together by a mounting plate (3) and fixing bolts (6).

4. The anti-thermal-deformation bearing seat according to claim 1, characterized in that: The mounting plate (3) below is internally connected to a drive rod (13), and a limit rod (12) is symmetrically slidably connected inside the mounting plate (3) about the center point of the drive rod (13). The limit rod (12) and the drive rod (13) are connected by a movable plate (14). A return spring (15) is installed between the outer side of the drive rod (13) and the inner wall of the mounting plate (3). A limit groove is opened on the side of the fixing bolt (6).

5. A heat distortion resistant chock as claimed in claim 4, wherein: The bottom of the drive rod (13) extends out of the outer surface of the mounting plate (3), and the drive rod (13) is slidably disposed inside the mounting plate (3). The position of the limiting rod (12) corresponds to the position of the limiting groove.

6. A heat distortion resistant chock as set forth in claim 4, characterized in that: Both ends of the movable plate (14) are hinged to the top of the drive rod (13) and the end of the limiting rod (12), respectively.

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