CN214479959U - Motor with lubricating structure suitable for pumping unit - Google Patents

Abstract

The utility model provides a motor with a lubricating structure, which is suitable for an oil pumping unit, and comprises a motor body, wherein the front end and the rear end of a rotating shaft which is penetrated through by the motor body in a pivoting way are respectively provided with a front end cover and a rear end cover, and the front end cover and the rear end cover respectively correspond to a front bearing and a rear bearing in the motor body; the front end cover and the rear end cover are respectively provided with a plurality of oil injection holes which are right opposite to the front bearing or the rear bearing, and the oil injection holes are also provided with plugging pieces which can be disassembled and assembled. The utility model discloses a motor that has lubricating structure that is applicable to among the beam-pumping unit of convenient injection lubricating oil of ability to the bearing.

Description

Motor with lubricating structure suitable for pumping unit

Technical Field

The utility model relates to a machinery production processing field, concretely relates to motor with lubricating structure suitable for among beam-pumping unit.

Background

In the prior art, the end part of the joint of the shaft of the motor and the bearing is provided with an end cover for protecting the motor. For example, the prior art; patent application No. CN201721811564.9, patent name: bearing structure of insulating end cover of variable frequency motor for roller way. Discloses a variable frequency motor insulation end cover bearing structure for roller way, which comprises: the bearing comprises an inner bearing cover, an end cover, an insulating layer, a bearing sleeve, a bolt, a gasket, a bearing, a shaft, a retainer ring, an oil baffle disc and an outer bearing cover. The bearing is arranged on the shaft, a bearing inner cover is arranged on one side of the bearing, an oil baffle disc and a retainer ring are sequentially arranged on the other side of the bearing, the bearing outer cover, the end cover, the insulating layer and the bearing sleeve are integrally molded and are arranged between the bearing inner cover and the bearing outer cover, and the bearing inner cover is connected with the bearing outer cover through bolts.

In the prior art, if lubricating oil is injected into the bearing, the bearing is generally required to be lubricated with the lubricating oil or the lubricating grease after the end cover is detached. However, in the prior art, for example, oil pumping units in oil fields are generally large and often work on high-altitude racks, so that lubricating oil is troublesome and dangerous for bearings by detaching bearing covers.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, provides a motor that has lubricating structure that is applicable to among the beam-pumping unit that can conveniently pour into lubricating oil to the bearing.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a motor with a lubricating structure suitable for an oil pumping unit comprises a motor body, wherein a front end cover and a rear end cover are respectively arranged at the front end and the rear end of a rotating shaft which is pivotally penetrated through the motor body, and respectively correspond to a front bearing and a rear bearing in the motor body; the front end cover and the rear end cover are respectively provided with a plurality of oil injection holes which are right opposite to the front bearing or the rear bearing, and the oil injection holes are also provided with plugging pieces which can be disassembled and assembled.

The utility model discloses an in the preferred embodiment, the front bearing with the rear bearing is close to one side of rotor core is provided with preceding oil baffle and back oil baffle respectively in the motor body.

In a preferred embodiment of the present invention, the front end cap and the inner ring of the front bearing, and the rear end cap and the inner ring of the rear bearing are respectively reserved with oil injection gaps.

In a preferred embodiment of the present invention, an internal thread is provided in the oil filler hole, and the plugging member is a bolt screwed to the oil filler hole.

In a preferred embodiment of the present invention, the introduction port of the oil filler hole corresponds to a middle portion between the inner ring and the outer ring of the front bearing or the rear bearing, respectively.

In a preferred embodiment of the present invention, the front end cover and the oil injection hole on the rear end cover are all divided into 90-degree intervals around the shaft hole.

In a preferred embodiment of the present invention, the motor body includes a housing, the housing is provided with a shaft hole running through in the transverse direction, a rotating shaft is arranged in the shaft hole, a rotor core is fixedly sleeved on a portion of the rotating shaft located in the housing, a stator core with a coil is arranged in the housing, and the stator core is sleeved outside the rotor core; an electric brush is also arranged between the rotor core and the stator core; the two ends of the rotating shaft penetrating out of the shell are respectively in pivot connection with the shaft holes through the front bearing and the rear bearing, and the shaft holes on the two sides of the shell are respectively sleeved with the front end cover and the rear end cover.

Specifically, the shell comprises a hollow outer ring sleeve, a front side cover and a rear side cover are arranged at two ends of the outer ring sleeve respectively, and the front side cover and the rear side cover are connected with the outer ring sleeve in a fastening mode through fastening screws. The front side cover and the rear side cover are respectively provided with a shaft hole, and a front bearing and a rear bearing are fixedly arranged in the shaft holes.

The utility model provides a defect that exists in the technical background, the utility model discloses profitable technological effect is:

the utility model discloses a motor that has lubricating structure suitable for in beam-pumping unit has the function that can conveniently pour into lubricating oil into to the bearing.

First, be provided with the oil filler point just to front bearing or rear bearing on front end housing and the rear end cap respectively, can realize just can carrying out the injection operation of lubricating oil to front bearing and rear bearing in the shell without dismantling front end housing and rear end cap.

Second, still be provided with the shutoff piece that can the dismouting on the oil filler point, only need unscrew the fastener that corresponds during the use and can carry out the oiling operation to the oil filler point and can not directly touch pivot and bearing. The danger of operation is reduced.

And thirdly, a front oil baffle and a rear oil baffle are respectively arranged on one side of the front bearing and one side of the rear bearing close to the rotor core in the motor body, so that lubricating oil is isolated, and the motor is prevented from being damaged by overflowing to the inside of the motor.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a first structural schematic diagram (front end front view) of a motor with a lubricating structure, which is suitable for an oil pumping unit in a preferred embodiment of the invention;

fig. 2 is a schematic structural diagram (a side sectional view) of a motor with a lubricating structure, which is suitable for the pumping unit in the preferred embodiment of the present invention;

the meaning of the reference numerals in the figures; 1-rotating shaft, 10-base, 21-front bearing, 22-rear bearing, 23-front oil baffle, 24-rear oil baffle, 31-front end cover, 32-rear end cover, 33-oil injection hole, 34-bolt, 41-front side cover, 42-rear side cover, 43-electric brush, 5-rotor iron core, 6-coil, 7-stator iron core, 8-outer ring sleeve, 9-fastening screw and X-rotating central shaft.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.

It should be noted that, if directional indications (such as up, down, bottom, top, etc.) are involved in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, a motor with a lubricating structure suitable for an oil pumping unit includes a motor body, the motor body includes a housing, a support base 10 is disposed on the lower portion of the housing, the housing includes a hollow outer ring sleeve 8, a front side cover 41 and a rear side cover 42 are disposed at two ends of the outer ring sleeve 8, and the front side cover 41 and the rear side cover 42 are fastened and connected with the outer ring sleeve 8 through fastening screws 9. The centers of the front cover 41 and the rear cover 42 are provided with shaft holes, and the center axes of the shaft holes of the front cover 41 and the rear cover 42 are on the same center axis, i.e., the rotation center axis X. The front bearing 21 and the rear bearing 22 are respectively fixed in the shaft holes of the front side cover 41 and the rear side cover 42. The shaft hole is internally provided with a rotating shaft 1 in a penetrating way, and the rotating shaft 1 is respectively connected with the shaft hole in a pivoting way through a front bearing 21 and a rear bearing 22. A rotor core 5 is fixedly sleeved on the part, located in the shell, of the rotating shaft 1, a stator core 7 is arranged in the shell, a coil 6 is arranged on the stator core 7, and the stator core 7 is sleeved outside the rotor core 5 at intervals; a brush 43 is also provided between the rotor core 5 and the stator core 7.

Specifically, the two ends of the rotating shaft 1 penetrating through the housing are pivotally connected with the shaft holes on the front side cover 41 and the rear side cover 42 through the front bearing 21 and the rear bearing 22 respectively, the shaft holes on the two sides of the housing are sleeved with the front end cover 31 and the rear end cover 32 respectively, and the front end cover 31 and the rear end cover 32 are connected and fastened with the front side cover 41 and the rear side cover 42 through the fastening screws 9 respectively. The front end cover 31 and the rear end cover 32 correspond to the front bearing 21 and the rear bearing 22 in the motor body, respectively. Four oil injection holes 33 are respectively formed in the front end cover 31 and the rear end cover 32. The four oil injection holes 33 on the front end cover 31 are respectively opposite to the front bearing 21, and the four oil injection holes 33 surround the central axis of the shaft hole on the front end cover 31 to form an angle of 90 degrees and are uniformly distributed at intervals. The four oil injection holes 33 on the rear end cover 32 are respectively opposite to the rear bearing 22, and the four oil injection holes 33 surround the central axis of the shaft hole on the rear end cover 32 to form an angle of 90 degrees and are uniformly distributed at intervals.

The oil filler hole 33 is also provided with a detachable blocking piece. The oil filling hole 33 is internally provided with internal threads, and the blocking piece adopts a bolt 34 screwed with the oil filling hole 33. The introduction port of the oil filler hole 33 corresponds to the intermediate portion between the inner ring and the outer ring of the front bearing 21 or the rear bearing 22, respectively. Further, a front oil baffle 23 and a rear oil baffle 24 are respectively arranged on one sides of the front bearing 21 and the rear bearing 22 close to the rotor core 5 in the motor body.

Specifically, oil injection gaps are reserved between the front end cover 31 and the inner ring of the front bearing 21, and between the rear end cover 32 and the inner ring of the rear bearing 22. And a sealing ring for sealing is arranged between the outer ring of the front bearing 21 and the front end cover 31. A sealing ring for sealing is arranged between the outer ring of the rear bearing 22 and the rear end cover 32. Further, a front end groove for embedding the front end cover 31 is formed in the front side cover 41, a shaft hole is formed in the front end groove, and a convex block in limited butt joint with the outer side of the front bearing 21 is formed in the shaft hole. The rear side cover 42 is provided with a rear end groove for embedding the rear end cover 32, the rear end groove is provided with a shaft hole, and the shaft hole is provided with a convex block which is in limit butt joint with the outer side of the rear bearing 22.

The utility model discloses the theory of operation:

as shown in fig. 1 and 2, the front end cap 31 and the rear end cap 32 are respectively provided with an oil injection hole 33 facing the front bearing 21 or the rear bearing 22, the oil injection hole 33 is further provided with a removable blocking piece, and a front oil baffle 23 and a rear oil baffle 24 are respectively arranged on the front bearing 21 and the rear bearing 22 near the rotor core 5 in the motor body.

When the oiling device is used, oiling operation can be carried out on the oiling hole 33 by only unscrewing the corresponding fastener, and the oiling device cannot directly touch the rotating shaft 1 and the bearing. The front oil baffle plate 23 and the rear oil baffle plate 24 are used for isolating injected lubricating oil, and the lubricating oil is prevented from overflowing to the interior of the motor to damage the motor. The operation of injecting the lubricating oil into the front bearing 21 and the rear bearing 22 in the housing can be realized without detaching the front end cover 31 and the rear end cover 32, and the danger of the operation is reduced.

Above concrete implementation is right the utility model provides a scheme thought concrete support, can not injecing with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change or equivalent change of equivalence that do on this technical scheme basis all still belong to the utility model discloses technical scheme's scope of protection.

Claims (7)

1. A motor with a lubricating structure suitable for an oil pumping unit comprises a motor body, wherein a front end cover and a rear end cover are respectively arranged at the front end and the rear end of a rotating shaft which is pivotally penetrated through the motor body, and respectively correspond to a front bearing and a rear bearing in the motor body; the method is characterized in that: the front end cover and the rear end cover are respectively provided with a plurality of oil injection holes which are right opposite to the front bearing or the rear bearing, and the oil injection holes are also provided with plugging pieces which can be disassembled and assembled.

2. The motor with a lubricating structure suitable for the oil pumping unit according to claim 1, wherein: and one side of the front bearing and one side of the rear bearing, which are close to the rotor core in the motor body, are respectively provided with a front oil baffle and a rear oil baffle.

3. The motor with a lubricating structure suitable for the oil pumping unit according to claim 2, wherein oil injection gaps are reserved between the front end cover and the inner ring of the front bearing and between the rear end cover and the inner ring of the rear bearing respectively.

4. The motor with a lubricating structure for the oil pumping unit according to claim 3, wherein the oil hole is internally provided with internal threads, and the blocking piece is a bolt screwed with the oil hole.

5. The motor with a lubricating structure for use in a pumping unit according to claim 4, wherein the introduction port of the oil filler hole corresponds to a middle portion between the inner ring and the outer ring of the front bearing or the rear bearing, respectively.

6. The electric motor with a lubricating structure for a pumping unit of claim 5, wherein the oil injection holes on the front end cover and the rear end cover are distributed at intervals of 90 degrees around the shaft hole.

7. The motor with the lubricating structure is suitable for the oil pumping unit, and is characterized in that the motor body comprises a shell, a shaft hole transversely penetrates through the shell, a rotating shaft penetrates through the shaft hole, a rotor core is fixedly sleeved on the part, located in the shell, of the rotating shaft, a stator core with a coil is arranged in the shell, and the stator core is sleeved outside the rotor core; an electric brush is also arranged between the rotor core and the stator core; the two ends of the rotating shaft penetrating out of the shell are respectively in pivot connection with the shaft holes through the front bearing and the rear bearing, and the shaft holes on the two sides of the shell are respectively sleeved with the front end cover and the rear end cover.

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