Knurled guide shaft sleeve

Abstract

The knurled guide shaft sleeve comprises a guide sleeve, a first knurled sleeve is fixedly connected in the guide sleeve, one end of the first knurled sleeve is fixedly connected with a shaft sleeve, a spacer bush oil passing gap is formed between the shaft sleeve and the guide sleeve, and a spacer bush inner wall oil storage space is formed in the shaft sleeve. A second knurled sleeve fixedly connected with the guide sleeve is fixedly arranged at the end, away from the first knurled sleeve, of the shaft sleeve, the outer diameter of the shaft sleeve is smaller than the outer diameter of the first knurled sleeve and the outer diameter of the second knurled sleeve, and a second oil inlet hole is formed in the shaft sleeve. When the oil conveying channel is blocked, the guide sleeve can supply lubrication normally without generating violent friction, buffer time is provided for maintenance of workers, and then the occurrence rate of friction damage is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to a shaft sleeve, more specifically, it relates to a knurled guide shaft sleeve. Background Art

[0002] For some transmission shafts that are difficult to repair, disassemble or have high value, in order to protect the transmission shaft from wear, a bearing sleeve will be installed outside the shaft during the design process, and then the bearing will be installed on the bearing sleeve to facilitate installation and maintenance.

[0003] However, when the bearing sleeve is installed on the drive shaft, there is still a small gap between the bearing sleeve and the drive shaft. This gap will cause the two to rotate relative to each other and cause wear, reducing the service life. Lubricating oil is required, but in actual use, the lubricating oil is easy to clump and clog the oil pipe, and the lubricating oil cannot be replenished in time when it is needed, so there is room for improvement. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a knurled guide sleeve, which is provided with a spacer sleeve oil-passing gap, so that when the oil pipe is blocked, the guide sleeve can still supply lubrication normally to avoid severe friction.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The knurled guide sleeve comprises a guide sleeve, a first knurled sleeve is fixedly connected inside the guide sleeve, one end of the first knurled sleeve is fixedly connected to a sleeve, a spacer sleeve oil-passing gap is formed between the sleeve and the guide sleeve, an oil storage space is formed on the inner wall of the spacer sleeve in the sleeve, a second knurled sleeve fixedly connected to the guide sleeve is fixedly provided at one end of the sleeve away from the first knurled sleeve, the outer diameter of the sleeve is smaller than the outer diameters of the first knurled sleeve and the second knurled sleeve, and a second oil inlet hole is provided on the sleeve.

[0007] As a further improvement of the present invention, the guide sleeve includes a first sleeve, one end of the first sleeve is fixedly connected to a mounting plate for mounting equipment, one end of the mounting plate away from the first sleeve is fixedly connected to a second sleeve, and the outer diameter of the second sleeve is larger than the outer diameter of the first sleeve.

[0008] As a further improvement of the present invention, the first knurled sleeve is provided with a first oil inlet hole, the guide sleeve is also provided with an oil storage port at one end corresponding to the second knurled sleeve, and the outer wall of the guide sleeve is provided with a plurality of oil unloading cavities connected with the oil storage port.

[0009] As a further improvement of the present invention, the shaft sleeve also includes a blocking ring fixedly connected to the second knurled sleeve, and the blocking ring is arranged below the first oil inlet hole.

[0010] As a further improvement of the present invention, a first sealing ring is provided at one end of the first knurled sleeve away from the shaft sleeve.

[0011] As a further improvement of the present invention, a second sealing ring is provided at one end of the second knurled sleeve away from the shaft sleeve.

[0012] As a further improvement of the present invention, a sealing ring is detachably provided on the end of the guide sleeve corresponding to the second knurled sleeve.

[0013] Beneficial effects of the utility model:

[0014] 1. The first knurled sleeve and the second knurled sleeve are arranged so that when the sleeve is arranged on the rotating shaft, the stable rotation can be better ensured, and the first knurled sleeve and the second knurled sleeve can play a guiding role;

[0015] 2. The setting of the oil gap in the spacer sleeve can store some lubricating oil, ensuring that the guide sleeve can still supply lubrication normally without causing severe friction when the oil delivery channel is blocked, giving the staff buffer time for maintenance, thereby significantly reducing the incidence of friction damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a cross-sectional view of a knurled guide sleeve;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is an exploded view of the internal components of the guide sleeve in the utility model.

[0019] Reference numerals: 1, guide sleeve; 2, first knurled sleeve; 3, shaft sleeve; 4, oil gap of spacer sleeve; 5, second knurled sleeve; 6, second oil inlet hole; 7, first sealing ring; 8, second sealing ring; 9, sealing ring;

[0020] 11. first sleeve; 12. mounting plate; 13. second sleeve;

[0021] 21. First oil inlet hole;

[0022] 31. Blocking ring; 32. Oil storage space on the inner wall of the spacer;

[0023] 51. Oil storage port; 52. Oil unloading chamber. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same components are indicated by the same reference numerals.

[0025] like Figure 1-3As shown, the knurled guide sleeve includes a guide sleeve 1, a first knurled sleeve 2 is fixedly connected inside the guide sleeve 1, a shaft sleeve 3 is fixedly connected to one end of the first knurled sleeve 2, a spacer sleeve oil-passing gap 4 is formed between the shaft sleeve 3 and the guide sleeve 1, an inner wall oil storage space 32 is formed inside the shaft sleeve 3, a second knurled sleeve 5 fixedly connected to the guide sleeve 1 is fixedly provided at one end of the shaft sleeve 3 away from the first knurled sleeve 2, the outer diameter of the shaft sleeve 3 is smaller than the outer diameters of the first knurled sleeve 2 and the second knurled sleeve 5, and a second oil inlet hole 6 is provided on the shaft sleeve 3.

[0026] Among them, the first knurled sleeve 2 and the second knurled sleeve 5 have a knurled structure, which can better ensure stable rotation when they are sleeved on the rotating shaft. However, due to the addition of components, the rotating shaft needs to be lubricated with lubricating oil to prevent damage caused by slight friction with the knurled guide sleeve 3. Therefore, after adding lubricating oil, the spacer oil gap 4 formed between the sleeve 3 and the guide sleeve 1 will store a part of the lubricating oil to ensure that the guide sleeve 1 can still supply lubrication normally when the oil delivery channel is blocked without causing severe friction, giving the staff buffer time for maintenance. Compared with the existing technology, it can significantly reduce the incidence of friction damage.

[0027] At the same time, since the spacer oil gap 4 is arranged between the shaft sleeve 3 and the guide sleeve 1, the internal oil delivery channel will be smaller, thereby making the overall accuracy of the device higher.

[0028] Since the shaft sleeve 3, the first knurled sleeve 2 and the second knurled sleeve 5 are fixedly connected, compared with the traditional knurled guide shaft sleeve, a sealing ring and a sealing ring 9 are omitted, and the assembly time is correspondingly saved.

[0029] Preferably, the guide sleeve 1 includes a first sleeve 11, one end of the first sleeve 11 is fixedly connected to a mounting plate 12 for mounting equipment, and the end of the mounting plate 12 away from the first sleeve 11 is fixedly connected to a second sleeve 13, and the outer diameter of the second sleeve 13 is larger than the outer diameter of the first sleeve 11.

[0030] Preferably, the first knurled sleeve 2 is provided with a first oil inlet hole 21 , the guide sleeve 1 is further provided with an oil storage port 51 at one end corresponding to the second knurled sleeve 5 , and the outer wall of the guide sleeve 1 is provided with a plurality of oil unloading cavities 52 connected with the oil storage port 51 .

[0031] Since the knurled guide sleeve is an auxiliary component, a first sleeve 11, a mounting plate 12 and a second sleeve 13 are provided for installing the equipment. Since a single circulating oil circuit will render the entire component unusable once a problem occurs, a plurality of oil unloading chambers 52 are provided, and the installation method is usually with the first knurled sleeve 2 on top and the second knurled sleeve 5 on the bottom, so as to facilitate the installation of a hose that guides the lubricating oil away from the outside.

[0032] When adding lubricating oil, the lubricating oil will first fill the gap and then fill the oil gap 4 of the spacer sleeve. However, if the lubricating oil completely fills the oil gap 4 of the spacer sleeve, problems such as lubricating oil overflow are likely to occur. Therefore, a certain gap needs to be reserved. In addition, an oil return process is set through the first oil inlet hole 21 and the oil unloading chamber 52. When the lubricating oil is excessive, the lubricating oil will be discharged through the oil unloading chamber 52. The oil return process will not cause the guide sleeve 1 to be full of oil and leak out, thereby ensuring the cleanliness of the equipment panel.

[0033] When the equipment is powered on, the oil pump starts to supply oil to each important part that needs lubrication. The lubricating oil is supplied to the first oil inlet hole 21, the first knurled sleeve 2, the oil gap 4 of the spacer sleeve, the second oil inlet hole 6, the oil storage space 32 on the inner wall of the spacer sleeve, the second knurled sleeve 5, the oil storage port 51 and the oil unloading cavity 52 in sequence, and finally the oil is circulated from the oil return pool, thereby realizing the entire process from oil supply to oil unloading.

[0034] Preferably, the shaft sleeve 3 further includes a blocking ring 31 fixedly connected to the second knurled sleeve 5 , and the blocking ring 31 is arranged below the first oil inlet hole 6 .

[0035] Since the installation method is usually that the first knurled sleeve 2 is on the top and the second knurled sleeve 5 is on the bottom, it is necessary to prevent the lubricating oil from easily leaking into the second knurled sleeve 5 under the action of gravity. Therefore, a blocking ring 31 is provided as a buffer to slow down the sliding speed of the lubricating oil.

[0036] Preferably, a first sealing ring 7 is provided at one end of the first knurled sleeve 2 away from the shaft sleeve 3 .

[0037] Preferably, a second sealing ring 8 is provided at one end of the second knurled sleeve 5 away from the shaft sleeve 3 .

[0038] Preferably, a sealing ring 9 is detachably provided on the end of the guide sleeve 1 corresponding to the second knurled sleeve 5 .

[0039] In order to prevent the lubricating oil from flowing out from both ends of the knurled guide sleeve 3, a first sealing ring 7 and a second sealing ring 8 are provided for sealing. At the same time, since the installation method is usually that the first knurled sleeve 2 is on the top and the second knurled sleeve 5 is on the bottom, an additional detachable sealing ring 9 is required to strengthen the connection strength of the components, and also to further prevent the lubricating oil from dripping under the action of gravity.

[0040] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. Knurled guide sleeve, characterized in that: The invention comprises a guide sleeve (1), wherein a first knurled sleeve (2) is fixedly connected inside the guide sleeve (1), one end of the first knurled sleeve (2) is fixedly connected to a shaft sleeve (3), a spacer sleeve oil-passing gap (4) is formed between the shaft sleeve (3) and the guide sleeve (1), an inner wall oil storage space (32) of the spacer sleeve is formed inside the shaft sleeve (3), a second knurled sleeve (5) fixedly connected to the guide sleeve (1) is fixedly provided at one end of the shaft sleeve (3) away from the first knurled sleeve (2), the outer diameter of the shaft sleeve (3) is smaller than the outer diameters of the first knurled sleeve (2) and the second knurled sleeve (5), and a second oil inlet hole (6) is provided on the shaft sleeve (3).

2. The knurled guide sleeve according to claim 1, characterized in that: The guide sleeve (1) comprises a first sleeve (11), one end of the first sleeve (11) is fixedly connected to a mounting plate (12) for mounting equipment, and one end of the mounting plate (12) away from the first sleeve (11) is fixedly connected to a second sleeve (13), and the outer diameter of the second sleeve (13) is greater than the outer diameter of the first sleeve (11).

3. The knurled guide sleeve according to claim 2, characterized in that: The first knurled sleeve (2) is provided with a first oil inlet hole (21), the guide sleeve (1) is also provided with an oil storage port (51) at one end corresponding to the second knurled sleeve (5), and the outer wall of the guide sleeve (1) is provided with a plurality of oil unloading cavities (52) connected to the oil storage port (51).

4. The knurled guide sleeve according to claim 1, characterized in that: The shaft sleeve (3) also includes a blocking ring (31) fixedly connected to the second knurled sleeve (5), and the blocking ring (31) is arranged below the first oil inlet hole (21).

5. The knurled guide sleeve according to claim 2, characterized in that: A first sealing ring (7) is provided at one end of the first knurled sleeve (2) away from the shaft sleeve (3).

6. The knurled guide sleeve according to claim 5, characterized in that: A second sealing ring (8) is provided at one end of the second knurled sleeve (5) away from the shaft sleeve (3).

7. The knurled guide sleeve according to claim 6, characterized in that: The guide sleeve (1) is provided with a detachable sealing ring (9) at one end corresponding to the second knurled sleeve (5).

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