CN210290525U - Motor coupling structure of thin oil station - Google Patents
Motor coupling structure of thin oil station Download PDFInfo
- Publication number
- CN210290525U CN210290525U CN201920907849.5U CN201920907849U CN210290525U CN 210290525 U CN210290525 U CN 210290525U CN 201920907849 U CN201920907849 U CN 201920907849U CN 210290525 U CN210290525 U CN 210290525U
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- Prior art keywords
- shaft
- oil pump
- coupling structure
- motor
- sleeve
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- Expired - Fee Related
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- 230000008878 coupling Effects 0.000 title claims abstract description 27
- 238000010168 coupling process Methods 0.000 title claims abstract description 27
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 53
- 230000033001 locomotion Effects 0.000 description 8
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a motor coupling structure of a thin oil station, which comprises a motor shaft, an oil pump shaft with the end coaxially inserted into the motor shaft, a connecting key connected between the end of the oil pump shaft and the inner hole of the motor shaft, and a sleeve sleeved at the joint of the motor shaft and the oil pump shaft; at least one first snap ring for axial positioning is arranged between the sleeve and the motor shaft, and at least one second snap ring for axial positioning is arranged between the sleeve and the oil pump shaft. The coupling structure can avoid abrasion of a connecting key and a key groove between the motor shaft and the oil pump shaft.
Description
Technical Field
The utility model relates to a coupling structure, in particular to motor coupling structure of thin oil station.
Background
The existing thin oil station system of the coal-fired power plant mainly comprises a vertical gear pump unit device, an oil tank, a filter, a cooler magnetic net filter device, various pipelines and the like, and is important equipment for providing lubricating oil for front and rear bearing bushes of a high-voltage motor.
Referring to fig. 3, an oil pump 1 ' of the conventional thin oil station system is driven by a motor 2 ', and an end of an oil pump shaft 1.1 ' of the oil pump 1 ' is coaxially inserted into a motor shaft 2.1 ' of the motor 2 ' and connected by a connecting key 3 ' to realize circumferential transmission. Because the connecting key 3 'can not carry on spacingly to the axial of motor shaft 2.1' and oil pump axle 1.1 ', the during operation, motor shaft 2.1' and oil pump axle 1.1 'inevitably can have little axial relative motion, can lead to connecting key 3' and the keyway that corresponds wearing and tearing after using for a period.
And the connecting key 3' and the corresponding keyway are abraded, which can cause the insufficient output of an oil pump, the oil supply pressure of a thin oil station system is reduced, the bearing bush of a high-voltage motor is burnt due to the insufficient oil supply pressure of lubricating oil, and more seriously, the high-voltage motor is blocked and locked to rotate, so that the coil of the high-voltage motor is burnt. The safe and efficient operation of the power plant system is seriously influenced.
It is seen that the prior art is susceptible to improvements and enhancements.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's weak point, an object of the utility model is to provide a thin oil station motor coupling structure aims at solving the problem that connecting key and keyway between oil pump shaft and the motor shaft wear easily in the current thin oil station system.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a motor coupling structure of a thin oil station comprises a motor shaft, an oil pump shaft, a connecting key and a sleeve, wherein the end part of the oil pump shaft is coaxially inserted into the motor shaft, the connecting key is connected between the end part of the oil pump shaft and an inner hole of the motor shaft, and the sleeve is sleeved at the joint of the motor shaft and the oil pump shaft; at least one first snap ring for axial positioning is arranged between the sleeve and the motor shaft, and at least one second snap ring for axial positioning is arranged between the sleeve and the oil pump shaft.
In the thin oil station motor coupling structure, an inner hole of the sleeve comprises a first shaft hole adaptive to a motor shaft and a second shaft hole adaptive to an oil pump shaft; the motor shaft is inserted in the first shaft hole, and the oil pump shaft is inserted in the second shaft hole.
In the thin oil station motor coupling structure, a first mounting groove matched with a first clamping ring is formed in the first shaft hole, a corresponding first clamping groove is formed in the outer peripheral surface of a motor shaft, and the first clamping ring is clamped between the first mounting groove and the first clamping groove; and a second mounting groove matched with a second clamping ring is formed in the second shaft hole, a corresponding second clamping groove is formed in the outer peripheral surface of the oil pump shaft, and the second clamping ring is clamped between the second mounting groove and the second clamping groove.
In the thin oil station motor coupling structure, the sleeve is symmetrically divided into two sub-sleeves along the longitudinal section, two connecting plates are respectively arranged on two sides of each sub-sleeve in the width direction, and the connecting plates corresponding to the two sub-sleeves are fixedly connected through a plurality of screws.
In the thin oil station motor coupling structure, the first clamping ring and the second clamping ring are both composed of two independent semicircular clamping rings.
In the thin oil station motor coupling structure, the separating surfaces of the two sub-sleeves and the separating surfaces of the two semicircular clamping rings of the first clamping ring are not on the same plane; the separating surfaces of the two sub-sleeves and the separating surfaces of the two semicircular clamping rings of the second clamping ring are not on the same plane.
In the thin oil station motor coupling structure, a threaded hole is formed in the position, corresponding to the connecting key, on the circumferential surface of the motor shaft, a countersunk head bolt is arranged in the threaded hole and abuts against the connecting key.
Has the advantages that:
the utility model provides a pair of thin oil station motor shaft coupling structure, on the basis of oil pump axle and motor shaft key-type connection, establish a sleeve at the junction cover of motor shaft and oil pump axle, sleeve and motor shaft, sleeve and oil pump axle realize axial positioning through the snap ring respectively, consequently, neither can take place circumference relative motion between motor shaft and the oil pump axle, also can not take place axial relative motion to can avoid taking place relative motion between connection key and the keyway that corresponds, and then avoid connecting key and keyway wearing and tearing.
Drawings
Fig. 1 is the utility model provides a pair of thin oil station motor shaft coupling structure's schematic structure diagram.
Fig. 2 is the utility model provides an among the thin oil station motor coupling structure, telescopic structural schematic.
Fig. 3 is a schematic view of a motor coupling structure of a conventional thin oil station.
Detailed Description
The utility model provides an electrostatic precipitator's rapping device, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the attached drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1-2, the utility model provides a thin oil station motor coupling structure, including motor shaft 1, the tip inserts the oil pump shaft 2 of motor shaft 1 coaxially, connects the connecting key 3 between the tip of oil pump shaft 2 and the inner hole of motor shaft 1 (the inner hole of motor shaft 1 and the tip of oil pump shaft 2 are provided with corresponding keyway), and the sleeve 4 that the cover is established at the junction of motor shaft and oil pump shaft; at least one first snap ring 5 for axial positioning is arranged between the sleeve 4 and the motor shaft 1, and at least one second snap ring 6 for axial positioning is arranged between the sleeve 4 and the oil pump shaft 2.
In this shaft coupling structure, can realize the circumference location between the oil pump shaft 2 of motor shaft 1 through connecting key 3, avoid appearing circumference relative motion between the two, and can realize the axial positioning between the oil pump shaft 2 of motor shaft 1 through the mating reaction of sleeve 4, first snap ring 5, second snap ring 6, avoid appearing the axial relative motion between the two to can avoid taking place relative motion between connecting key 3 and the keyway that corresponds, and then avoid connecting key 3 and keyway wearing and tearing.
In the embodiment, as shown in fig. 2, the inner hole of the sleeve 4 comprises a first shaft hole 4.1 adapted to the motor shaft 1 and a second shaft hole 4.2 adapted to the oil pump shaft 2; the motor shaft is inserted in the first shaft hole, and the oil pump shaft is inserted in the second shaft hole. The sleeve can improve the connection strength of the motor shaft 1 and the oil pump shaft 2.
Further, a first mounting groove 4.3 matched with a first clamping ring 5 is formed in the first shaft hole 4.1, a corresponding first clamping groove is formed in the outer peripheral surface of the motor shaft 1, and the first clamping ring 5 is clamped between the first mounting groove 4.3 and the first clamping groove; the second shaft hole 4.2 is provided with a second mounting groove 4.4 matched with the second clamping ring 6, a corresponding second clamping groove is formed in the outer peripheral surface of the oil pump shaft 2, and the second clamping ring 6 is clamped between the second mounting groove 4.4 and the second clamping groove.
Preferably, as shown in fig. 2, the sleeve 4 is symmetrically divided into two sub-sleeves 4.5 along the longitudinal section, each sub-sleeve 4.5 is provided with a connecting plate 4.6 at two sides in the width direction, and the corresponding connecting plates of the two sub-sleeves are connected and fixed by a plurality of screws 4.7. During installation, the first clamping ring 5 and the second clamping ring 6 can be installed on the motor shaft 1 and the oil pump shaft 2 respectively, then the two sub-sleeves 4.5 are well covered, and finally the two sub-sleeves are fixedly connected through the screws 4.7, so that the assembly and disassembly are very convenient.
Further, the first snap ring 5 and the second snap ring 6 are both composed of two independent semicircular snap rings, as shown in fig. 2. The two semicircular clamping rings are respectively inserted into the corresponding clamping grooves, so that the assembly between the clamping rings and the corresponding shafts can be completed, and the assembly and disassembly are convenient and quick.
In a preferred embodiment, the parting plane of the two sub-sleeves 4.5 is not in the same plane as the parting plane of the two semicircular snap rings of the first snap ring 5 (most preferably, the parting planes are perpendicular to each other as shown in fig. 2); the parting plane of the two sub-sleeves 4.5 is not in the same plane as the parting plane of the two semicircular snap rings of the second snap ring 6 (most preferably, the parting planes are perpendicular to each other as shown in fig. 2). The semicircular clamping ring spans the separating surfaces of the two sub-sleeves 4.5, so that the two sub-sleeves cannot generate axial relative movement, the mounting holes of the connecting plates 4.6 are ensured to be strictly aligned, the screws 4.7 can be conveniently mounted, and the mounting efficiency is improved.
In addition, as shown in fig. 1, a threaded hole may be formed in the circumferential surface of the motor shaft 1 at a position corresponding to the connection key 3, and a countersunk head bolt 7 may be disposed in the threaded hole and abut against the connection key 3. Because the thickness of connecting key 3 and the height that corresponds between the keyway can have the error, compress tightly connecting key 3 through countersunk head bolt 7, can avoid it to reciprocate.
It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.
Claims (7)
1. A motor coupling structure of a thin oil station is characterized by comprising a motor shaft, an oil pump shaft, a connecting key and a sleeve, wherein the end part of the oil pump shaft is coaxially inserted into the motor shaft; at least one first snap ring for axial positioning is arranged between the sleeve and the motor shaft, and at least one second snap ring for axial positioning is arranged between the sleeve and the oil pump shaft.
2. The thin oil station motor coupling structure of claim 1, wherein the inner bore of the sleeve comprises a first shaft bore adapted to the motor shaft and a second shaft bore adapted to the oil pump shaft; the motor shaft is inserted in the first shaft hole, and the oil pump shaft is inserted in the second shaft hole.
3. The thin oil station motor coupling structure as claimed in claim 2, wherein the first shaft hole is provided with a first mounting groove adapted to a first snap ring, a corresponding first snap groove is provided on an outer circumferential surface of the motor shaft, and the first snap ring is snapped between the first mounting groove and the first snap groove; and a second mounting groove matched with a second clamping ring is formed in the second shaft hole, a corresponding second clamping groove is formed in the outer peripheral surface of the oil pump shaft, and the second clamping ring is clamped between the second mounting groove and the second clamping groove.
4. The thin oil station motor coupling structure as claimed in claim 3, wherein the sleeve is divided into two sub-sleeves symmetrically along the longitudinal section, each sub-sleeve is provided with a connecting plate on each side in the width direction, and the connecting plates corresponding to the two sub-sleeves are connected and fixed through a plurality of screws.
5. The thin oil station motor coupling structure of claim 4, wherein the first snap ring and the second snap ring are both composed of two independent semicircular snap rings.
6. The thin oil station motor coupling structure as claimed in claim 5, wherein the separating surfaces of the two sub-sleeves are not on the same plane as the separating surfaces of the two semicircular snap rings of the first snap ring; the separating surfaces of the two sub-sleeves and the separating surfaces of the two semicircular clamping rings of the second clamping ring are not on the same plane.
7. The thin oil station motor coupling structure as claimed in claim 1, wherein a threaded hole is formed in a position, corresponding to the connecting key, on the circumferential surface of the motor shaft, and a countersunk head bolt is arranged in the threaded hole and abuts against the connecting key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920907849.5U CN210290525U (en) | 2019-06-17 | 2019-06-17 | Motor coupling structure of thin oil station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920907849.5U CN210290525U (en) | 2019-06-17 | 2019-06-17 | Motor coupling structure of thin oil station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290525U true CN210290525U (en) | 2020-04-10 |
Family
ID=70097028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920907849.5U Expired - Fee Related CN210290525U (en) | 2019-06-17 | 2019-06-17 | Motor coupling structure of thin oil station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290525U (en) |
-
2019
- 2019-06-17 CN CN201920907849.5U patent/CN210290525U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 |