High-sealing lubrication shaft sleeve

Abstract

The utility model discloses a high-sealing lubrication shaft sleeve, which comprises a shaft sleeve main body, a shaft hole is arranged on the shaft sleeve main body, the shaft hole penetrates through two ends of the shaft sleeve main body, and a positioning ring is arranged on the shaft sleeve main body, and is characterized in that a guide oil groove and an oil inlet are arranged on the shaft sleeve main body, and the oil inlet is communicated with the guide oil groove; oil can flow into the guide oil groove through the oil inlet and overflows from the guide oil groove to lubricate the inner wall of the shaft sleeve body, a first oil storage groove and a second oil storage groove are further formed in the inner wall of the shaft sleeve body, one end of the guide oil groove is communicated with the first oil storage groove, and the other end of the guide oil groove is communicated with the second oil storage groove. Oil in the guide oil groove can flow into the first oil storage groove and the second oil storage groove, and a first sealing groove and a second sealing groove are further formed in the inner wall of the shaft sleeve body. The first oil storage tank and the second oil storage tank provide extra oil storage space, it is guaranteed that the inner wall of the shaft sleeve is fully lubricated all the time, the lubricating time is prolonged, and the supplementing frequency of lubricating oil is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shaft sleeve technical field especially relates to a kind of high sealing lubricated shaft sleeve. BACKGROUND

[0002] Shaft sleeve is the cylindrical mechanical part of sleeve on the shaft, is a component part of sliding bearing. Generally speaking, shaft sleeve and bearing seat adopt interference fit, and clearance fit is used with shaft, and the same of shaft sleeve and bearing is that both bear the load of shaft, and the difference of the two is that shaft sleeve is integral structure, relative motion is between shaft and shaft sleeve when rotating;And bearing is split type, relative motion is between inner and outer ring of bearing itself when rotating. But essentially, shaft sleeve is just a kind of sliding bearing.

[0003] In the disclosure document, the application number is: CN202420458209.1 discloses a self-lubricating shaft sleeve, which comprises a shaft sleeve body, the shaft sleeve body comprises a shaft sleeve shell and an inner core, the inner core is located in the inside of the shaft sleeve shell, end covers are arranged at both ends of the shaft sleeve shell and the inner core, the two end covers are symmetrically arranged, a cavity for storing lubricating oil is formed between the shaft sleeve shell and the inner core, and lubricating oil is added to the gap between the shaft sleeve shell and the inner core through an oil filling hole.

[0004] The sealing performance of the existing lubricated shaft sleeve is poor, and the lubricating oil is prone to leakage, so that the lubricating oil needs to be frequently replenished. Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high sealing lubricated shaft sleeve, to solve the problem of poor sealing performance of the existing lubricated shaft sleeve.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] A kind of high sealing lubricated shaft sleeve, including shaft sleeve main body, shaft hole is set up on shaft sleeve main body, shaft hole penetrates the two ends of shaft sleeve main body, positioning ring is arranged on shaft sleeve main body, guide oil groove and oil inlet are set up on shaft sleeve main body, oil inlet and guide oil groove are communicated, oil can flow into guide oil groove by oil inlet, and guide oil groove overflows to lubricate the inner wall of shaft sleeve main body, oil tank one and oil tank two are further provided on the inner wall of shaft sleeve main body, one end of guide oil groove is communicated with oil tank one, the other end of guide oil groove is communicated with oil tank two, oil in guide oil groove can flow into oil tank one and oil tank two, sealing groove one and sealing groove two are further provided on the inner wall of shaft sleeve main body.

[0008] The utility model further provides that: the groove cavity of guide oil groove is communicated with shaft hole, and the oil in guide oil groove can flow into shaft hole to lubricate the contact surface of shaft sleeve inner wall.

[0009] The utility model discloses further provide as: the guide oil groove is along the inner wall helical extension of axle sleeve main part arrangement, and the guide oil groove is used for making the oil liquid along the spiral path even cover the contact surface on the inner wall of axle sleeve main part.

[0010] The utility model discloses further provide as: the axial height of guide oil groove is less than the axial height of axle sleeve main part.

[0011] The utility model discloses further provide as: the oil inlet is counterbore structure, and the oil plug is arranged in the oil inlet, and the oil plug is used for sealing the oil inlet.

[0012] The utility model discloses further provide as: oil storage groove no. 1 and oil storage groove no. 2 are annular grooves, and oil storage groove no. 1 and oil storage groove no. 2 are along the circumferential extension of axle sleeve main part arrangement.

[0013] The utility model discloses further provide as: sealing groove no. 1 and sealing groove no. 2 are annular grooves, and sealing groove no. 1 and sealing groove no. 2 are along the circumferential extension of axle sleeve main part arrangement, and sealing groove no. 1 and sealing groove no. 2 are provided with sealing ring in:

[0014] Summarized above, the utility model has following beneficial effect:

[0015] 1, through the guide oil groove oil liquid can even cover the axle sleeve inner wall, forms the continuous lubricating film, effectively reduces the friction between the axle and axle sleeve, improves the operation efficiency of equipment, and oil storage groove no. 1 and oil storage groove no. 2 provide the additional oil storage space, ensure that the axle sleeve inner wall always gets the full lubrication, prolongs the lubrication time, and reduces the supplement frequency of lubricating oil;

[0016] 2, the sealing ring in sealing groove no. 1 and sealing groove no. 2 is closely matched with the axle, forms an effective sealing barrier, improves the sealing performance, prevents oil leakage. DRAWINGS

[0017] Fig. 1 It is the sectional view of the utility model.

[0018] Fig. 2 It is the partial structure schematic view of the utility model.

[0019] Numerical designation: axle sleeve main part 1, axle hole 2, positioning ring 3, guide oil groove 4, oil inlet 5, oil storage groove no. 1 6, oil storage groove no. 2 7, sealing groove no. 1 8, sealing groove no. 2 9. SPECIFIC IMPLEMENTATION

[0020] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with the drawings and specific embodiments.

[0021] For example, Figs. 1-2As shown, the utility model provides a kind of high sealing lubricated shaft sleeve, including shaft sleeve main body 1, shaft hole 2 is set in shaft sleeve main body 1, shaft hole 2 is through the two ends of shaft sleeve main body 1, shaft sleeve main body 1 can be set on transmission shaft by shaft hole 2, shaft sleeve main body 1 is provided with positioning ring 3, shaft sleeve main body 1 is provided with guide oil groove 4 and oil inlet 5, one end of oil inlet 5 is located on the outer wall of positioning ring 3, one end of oil inlet 5 is located on the inner wall of shaft sleeve main body 1 and is communicated with guide oil groove 4, oil can flow into guide oil groove 4 by oil inlet 5, the cavity of guide oil groove 4 is communicated with shaft hole 2, and the oil in guide oil groove 4 can flow into shaft hole 2 to lubricate the contact surface of the inner wall of shaft sleeve, and the oil in guide oil groove 4 can overflow to lubricate the inner wall of shaft sleeve main body 1, the inner wall of shaft sleeve main body 1 is further provided with oil storage groove one and oil storage groove two 7, one end of guide oil groove 4 is communicated with oil storage groove one, the other end of guide oil groove 4 is communicated with oil storage groove two 7, and the oil in guide oil groove 4 can flow into oil storage groove one and oil storage groove two 7, oil storage groove one and oil storage groove two 7 provide additional oil storage space, which can improve the lubrication time of shaft sleeve, reduce the frequency of lubricating oil supplement, the inner wall of shaft sleeve main body 1 is further provided with sealing groove one 8 and sealing groove two 9, sealing ring is arranged in sealing groove one 8 and sealing groove two 9 (omitted in the drawing), the sealing property of shaft sleeve port is improved by sealing groove one 8, sealing groove two 9 and sealing ring, to avoid oil leakage.

[0022] When shaft sleeve is used, oil is injected into guide oil groove 4 through oil inlet 5, and evenly covers the inner wall of shaft sleeve under the guidance of guide oil groove 4, the oil will continuously overflow during flow, forming a continuous lubricating film, reducing the friction between shaft and shaft sleeve, the oil flows along guide oil groove 4, and finally flows into oil storage groove one and oil storage groove two 7 respectively, forming oil reserve, when the equipment is running, the oil in oil storage groove will continuously supplement into guide oil groove 4, to ensure that the inner wall of shaft sleeve is always fully lubricated.

[0023] Guide oil groove 4 is spirally arranged along the inner wall of shaft sleeve main body 1, and guide oil groove 4 is used to make the oil flow along the spiral path and evenly cover the contact surface on the inner wall of shaft sleeve main body 1, and the structure of spiral guide oil groove 4 helps to form a more compact lubricating film, improving the lubricating effect.

[0024] The axial height of guide oil groove 4 is less than the axial height of shaft sleeve main body 1, so that the flow of oil in guide oil groove 4 is more concentrated and efficient, and the spiral extension of the oil groove reduces the risk of oil leakage.

[0025] Oil inlet 5 is a counterbore structure, and an oil plug (omitted in the drawing) is arranged in oil inlet 5, the oil plug is used to seal oil inlet 5, and the counterbore structure makes the cooperation between oil inlet 5 and the oil plug more compact, reducing the risk of oil leakage.

[0026] The oil storage groove one and the oil storage groove two 7 are annular grooves, and the oil storage groove one and the oil storage groove two 7 are arranged along the circumference of the shaft sleeve body 1, and the oil storage groove one and the oil storage groove two 7 are used for providing an effective storage area for lubricating oil, and when the oil in the guide oil groove 4 flows in, the oil storage groove can receive and store the oil, and ensure that the inner wall of the shaft sleeve has enough lubricating oil for lubrication, and the design of the oil storage groove provides additional oil storage space and prolongs the lubrication time of the shaft sleeve.

[0027] The sealing groove one 8 and the sealing groove two 9 are annular grooves, and the sealing groove one 8 and the sealing groove two 9 are arranged along the circumference of the shaft sleeve body 1, and the sealing groove one 8 and the sealing groove two 9 provide mounting space for the sealing ring, and the sealing groove one 8 is located outside the oil storage groove one, and the sealing groove two 9 is located outside the oil storage groove two 7, and the sealing ring is used to ensure that the oil does not leak out from the gap between the shaft sleeve and the shaft, and through the close cooperation of the sealing groove and the sealing ring, the sealing performance is higher than that of the existing shaft sleeve.

[0028] The use process and principle of the utility model are as follows: the shaft sleeve body 1 is sleeved on the transmission shaft through the shaft hole 2, the oil plug on the oil inlet 5 is opened, and the appropriate amount of lubricating oil is injected into the guide oil groove 4 through the oil inlet 5, and the oil in the oil groove flows into the oil storage groove one and the oil storage groove two 7 respectively in the flowing process, and forms an oil reserve, and after the injection is completed, the oil plug is reinstalled and fastened to ensure that the oil inlet 5 is sealed. After ensuring that all components are installed correctly and the oil injection is completed, the equipment is started, and the transmission shaft starts to rotate. With the rotation of the transmission shaft, the oil in the guide oil groove 4 uniformly covers the contact surface of the inner wall of the shaft sleeve under the guidance of the spiral path. The oil continuously overflows in the flowing process, forms a continuous lubricating film, reduces the friction between the shaft and the shaft sleeve, and the oil in the oil storage groove one and the oil storage groove two 7 can be continuously supplemented into the guide oil groove 4, so that the inner wall of the shaft sleeve is always fully lubricated. At the same time, the sealing ring is closely matched with the shaft, and an effective sealing barrier is formed to prevent oil leakage.

[0029] In summary, the high-sealing lubricating shaft sleeve has obvious advantages in sealing performance, lubricating effect and long lubrication time, can effectively solve the problems existing in the existing shaft sleeve, and improve the performance and service life of the shaft sleeve.

[0030] In the description of the utility model, it needs to explain, the term "upper", "lower", "inner", "outer", "left", "right" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, or it is the orientation or position relation that the utility model product uses usually put, or it is the orientation or position relation that the person skilled in the art usually understands, just is for the convenience of describing the utility model and simplifying the description, and not indicate or imply the equipment or element that is indicated must have the specific orientation, with specific orientation structure and operation, therefore can not be understood as the restriction of the utility model.In addition, the term "first", "second" and so on are just used for distinguishing description, and can not be understood as indicating or implying relative importance.In the description of the utility model, it also needs to explain, unless another explicit provision and limitation, "arrange", "connect" and so on should be broad sense understanding, for example, "connect" can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements inside.For the person skilled in the art, the concrete meaning of the above-mentioned term in the utility model can be understood according to the specific situation.In this paper, the term "include", "contain" or its any other variant is intended to cover non-exclusive inclusion, except the element listed, but also can include other elements that are not explicitly listed.

[0031] The above specific embodiment of the utility model is not involved in the description of the public known technology in the art, can be implemented by referring to the public known technology.

[0032] The basic principle, main features and advantages of the utility model are shown and described above.The person skilled in the art should understand that the utility model is not limited by the above-mentioned examples, the above-mentioned examples and the description in the specification are just to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall into the scope of the utility model claimed.The scope of protection of the utility model is defined by the attached claims and its equivalents.

Claims

1. A high-sealing lubrication bushing, comprising a bushing body, a bushing body having a shaft hole extending through both ends of the bushing body, and a positioning ring provided on the bushing body, characterized in that, The bushing body has a guide oil groove and an oil inlet. The oil inlet and the guide oil groove are connected. Oil can flow into the guide oil groove through the oil inlet and overflow from the guide oil groove to lubricate the inner wall of the bushing body. The inner wall of the bushing body is also provided with an oil storage groove 1 and an oil storage groove 2. One end of the guide oil groove is connected to the oil storage groove 1, and the other end of the guide oil groove is connected to the oil storage groove 2. Oil in the guide oil groove can flow into the oil storage groove 1 and the oil storage groove 2. The inner wall of the bushing body is also provided with a sealing groove 1 and a sealing groove 2.

2. The high-sealing lubricating bushing according to claim 1, characterized in that, The guide oil groove is connected to the shaft hole, and the oil in the guide oil groove can flow into the shaft hole to lubricate the contact surface of the inner wall of the bushing.

3. The high-sealing lubricating bushing according to claim 1, characterized in that, The guide oil groove extends spirally along the inner wall of the bushing body. The guide oil groove is used to make the oil flow along the spiral path and evenly cover the contact surface of the inner wall of the bushing body.

4. The high-sealing lubricating bushing according to claim 1, characterized in that, The axial height of the guide oil groove is less than the axial height of the bushing body.

5. A high-sealing lubricating bushing according to claim 1, characterized in that, The oil inlet has a countersunk hole structure, and an oil plug is installed inside the oil inlet to seal it.

6. A high-sealing lubricating bushing according to claim 1, characterized in that, Both oil storage tank one and oil storage tank two are annular grooves, and they are arranged to extend along the circumference of the bushing body.

7. A high-sealing lubricating bushing according to claim 1, characterized in that, Both sealing groove one and sealing groove two are annular grooves, extending circumferentially along the main body of the bushing, and sealing rings are provided inside sealing groove one and sealing groove two.

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