Oil leakage prevention baffle disc for bearing gland of bearing box of centrifugal pump
By using a baffle body and an annular centrifugal groove in the centrifugal pump, the oil leakage problem at the gap between the bearing cover and the motor output shaft is solved, achieving effective oil recovery and improving the working efficiency and reliability of the centrifugal pump.
Patent Information
- Application Number
- CN202520042486.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-08
AI Technical Summary
During the use of a centrifugal pump, oil leakage is prone to occur at the gap between the bearing cover and the motor output shaft, which affects the lubrication and cooling effect and leads to a reduction in pump efficiency.
Design an oil-proof baffle that includes a baffle body and an annular centrifugal groove. The baffle body is fitted onto the output shaft and has a gap with the bearing cap. The annular centrifugal groove throws the oil back through centrifugal force, preventing oil from leaking out through the gap.
It effectively avoids or reduces oil leakage, maintains lubrication and cooling effects, reduces maintenance frequency, and is suitable for oil seals in various rotating equipment.
Smart Images
Figure CN223912349U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of oil leakage baffle disc, particularly to centrifugal pump bearing box bearing gland leakproof baffle disc. BACKGROUND
[0002] Centrifugal pump needs motor to provide driving force in the use process, under normal circumstances, such as Figure 3 As shown, the bearing gland is installed on the motor, and oil leakage will occur at the gap between the output shaft of the motor and the bearing gland, affecting its lubrication and cooling effect, and reducing the working efficiency of the pump. SUMMARY
[0003] To solve the above technical problems, the utility model provides a centrifugal pump bearing box bearing gland leakproof baffle disc.
[0004] The centrifugal pump bearing box bearing gland leakproof baffle disc of the utility model, including baffle disc body and annular centrifugal groove, the baffle disc body is annular, the first plane end of baffle disc body is provided with annular centrifugal groove, when using, the first plane end is towards motor, then baffle disc body is sleeved on the output shaft, the inner side wall of baffle disc body and the outer side wall of output shaft are in frictional contact, then bearing gland is sleeved on the outside of output shaft and is installed on the motor, and there is a gap between baffle disc body and bearing gland, when using, the motor drives the output shaft to rotate quickly, and the output shaft drives baffle disc body to rotate synchronously in the same direction, when the oil in the motor flows to the gap, the oil will enter the annular centrifugal groove, and the annular centrifugal groove rotates quickly with baffle disc body, so that the annular centrifugal groove rethrows the oil by centrifugal force, avoiding or reducing the oil leakage through the gap.
[0005] Preferably, it further includes annular push groove, the second plane end of baffle disc body is provided with annular push groove, when installing, since baffle disc body and the outer side wall of output shaft are in frictional contact, after the staff preliminarily sleeves baffle disc body on the output shaft, uses the round pipe to sleeve on the outside of output shaft and makes one end of round pipe insert into annular push groove, thereby pushing baffle disc body, improving the installation efficiency.
[0006] Preferably, the baffle disc body is circular truncated cone, and the area of the first plane end is greater than the area of the second plane end; the baffle disc body is circular truncated cone, which is suitable for the internal shape of the bearing gland and saves manufacturing materials.
[0007] Preferably, the baffle disc body is a polytetrafluoroethylene gasket.
[0008] The utility model discloses a centrifugal pump bearing box bearing gland leakproof oil baffle disc compared with prior art's beneficial effects are: when using, the first plane end is towards motor, after the baffle disc body is equipped on the output shaft, and the inner side wall of baffle disc body and the outer side wall friction contact of output shaft, after bearing gland is equipped on the outside of output shaft and is installed on the motor, and baffle disc body and bearing gland exist gap, when using, motor drives output shaft fast rotation, and output shaft drives baffle disc body and carries out synchronous same direction rotation simultaneously, when the oil in the motor flows to the gap, and the oil will enter annular centrifugal groove, and annular centrifugal groove follows baffle disc body and carries out fast rotation, thereby making annular centrifugal groove pass through centrifugal force and throw back the oil again, avoid or reduce the oil and leak through the gap. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is the first axonometric structure schematic diagram of the utility model,
[0010] Figure 2 It is the second axonometric structure schematic diagram of the utility model,
[0011] Figure 3 It is the axonometric structure schematic diagram of motor and bearing gland and other structures in prior art,
[0012] Figure 4 It is the explosion structure schematic diagram of output shaft and baffle disc body and other structures,
[0013] Figure 5 It is the cross section structure schematic diagram of the utility model,
[0014] Figure 6 It is the real object drawing of the utility model.
[0015] Mark in drawing: 1, baffle disc body, 2, annular centrifugal groove, 3, annular push groove, 4, motor, 5, output shaft, 6, bearing gland, 7, gap. DETAILED DESCRIPTION
[0016] In order to facilitate understanding the utility model, below will refer to relevant drawings and carry out more comprehensive description to the utility model.The utility model can be realized in many different forms, and is not limited to the embodiment described in this paper.Contrarily, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0017] Embodiment 1
[0018] The centrifugal pump bearing box bearing gland leakproof oil baffle disc of the utility model, as shown in Figure 1 、 Figure 2 、 Figure 4 and Figure 5 , including baffle disc body 1 and annular centrifugal groove 2, the baffle disc body 1 is annular, and the first plane end of baffle disc body 1 is provided with annular centrifugal groove 2.
[0019] As Figure 2 and Figure 4 shown, further comprising annular pushing groove 3, the second flat end of the baffle disc body 1 is provided with annular pushing groove 3.
[0020] In this embodiment, when in use, the first flat end faces the motor 4, then the baffle disc body 1 is sleeved on the output shaft 5, after the baffle disc body 1 is preliminarily sleeved on the output shaft 5 by the worker, a round pipe is sleeved outside the output shaft 5 and one end of the round pipe is inserted into the annular pushing groove 3 to push the baffle disc body 1, the inner side wall of the baffle disc body 1 is in frictional contact with the outer side wall of the output shaft 5, then the bearing gland 6 is sleeved outside the output shaft 5 and is installed on the motor 4, the baffle disc body 1 and the bearing gland 6 have a gap, when in use, the motor 4 drives the output shaft 5 to rotate quickly, at the same time, the output shaft 5 drives the baffle disc body 1 to rotate synchronously and in the same direction, when the oil in the motor 4 flows to the gap 7, the oil enters the annular centrifugal groove 2, the annular centrifugal groove 2 rotates quickly along with the baffle disc body 1, so that the annular centrifugal groove 2 rethrows the oil by centrifugal force, avoiding the oil leaking out through the gap 7.
[0021] Embodiment 2
[0022] The centrifugal pump bearing box bearing gland leak-proof baffle disc of the utility model, as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 shown, comprising baffle disc body 1 and annular centrifugal groove 2, the baffle disc body 1 is annular, the first flat end of the baffle disc body 1 is provided with annular centrifugal groove 2;
[0023] As Figure 2 and Figure 4 shown, further comprising annular pushing groove 3, the second flat end of the baffle disc body 1 is provided with annular pushing groove 3;
[0024] The baffle disc body 1 is circular truncated cone, the area of the first flat end is greater than the area of the second flat end;
[0025] The baffle disc body 1 is polytetrafluoroethylene gasket.
[0026] In the embodiment, when in use, the first flat end faces the motor 4, then the baffle disc body 1 is sleeved on the output shaft 5, after the baffle disc body 1 is preliminarily sleeved on the output shaft 5 by the worker, a round pipe is sleeved outside the output shaft 5 and one end of the round pipe is inserted into the annular pushing groove 3 to push and top the baffle disc body 1, the inner side wall of the baffle disc body 1 is in frictional contact with the outer side wall of the output shaft 5, then the bearing gland 6 is sleeved outside the output shaft 5 and is installed on the motor 4, the baffle disc body 1 and the bearing gland 6 have a gap, when in use, the motor 4 drives the output shaft 5 to rotate rapidly, and the output shaft 5 drives the baffle disc body 1 to rotate synchronously and in the same direction, when the oil in the motor 4 flows to the gap 7, the oil enters the annular centrifugal groove 2, the annular centrifugal groove 2 rotates rapidly along with the baffle disc body 1, so that the annular centrifugal groove 2 re-flings the oil back by centrifugal force, and the oil is prevented from leaking outside through the gap 7, and the baffle disc body 1 is in the shape of a circular truncated cone, which is suitable for the inner shape of the bearing gland 6 and saves manufacturing materials.
[0027] The main function realized by the utility model is that: the structure is simple, the device body does not need to be transformed, only one baffle disc body 1 needs to be installed to effectively solve the oil leakage problem, reduce the workload, avoid the hidden danger brought by multiple maintenance to normal production of the device, reduce the maintenance rate, and the structure can be used in oil seals of various rotating devices.
[0028] The motor 4 of the centrifugal pump bearing box bearing gland oil leakage prevention baffle disc of the utility model is purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.
[0029] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, without departing from the technical principle of the utility model, a plurality of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.
Claims
1. A centrifugal pump bearing housing bearing cover oil leakage prevention baffle plate, comprising a baffle plate body (1) and an annular centrifugal groove (2), the baffle plate body (1) is annular, characterized in that, The first planar end of the baffle disc body (1) is provided with an annular centrifugal groove (2).
2. The centrifugal pump bearing housing bearing cover leak proof barrier disc of claim 1 wherein, An annular pushing groove (3) is further included, and the second planar end of the baffle disc body (1) is provided with the annular pushing groove (3).
3. The centrifugal pump bearing housing bearing cover leak-proof baffle plate of claim 2, wherein, The baffle disc body (1) is in the shape of a circular truncated cone, and the area of the first planar end is greater than that of the second planar end.
4. The centrifugal pump bearing housing bearing cover leak proof barrier disc of claim 1 wherein, The baffle disc body (1) is a polytetrafluoroethylene gasket.