Shock-resistant base of permanent-magnet variable-frequency motor for belt pumping unit

Abstract

The utility model relates to the technical field of motors, in particular to a shock-resistant base of a permanent-magnet variable-frequency motor for a belt pumping unit, which comprises a shock-absorbing support plate fixed at the bottom of the permanent-magnet variable-frequency motor, a shock-absorbing seat arranged at the lower end of the shock-absorbing support plate, and a shock-absorbing assembly arranged at the upper end of the shock-absorbing seat and used for supporting the shock-absorbing support plate, the damping assembly comprises a main supporting column vertically arranged in the middle of the lower end of the damping supporting plate, a supporting plate arranged at the lower end of the main supporting column, and supporting rods which are evenly distributed at intervals in the circumferential direction and rotationally connected to the circumferential side end of the supporting plate. The sliding blocks are horizontally arranged at the upper end of the damping seat in a sliding mode and are evenly distributed in the circumferential direction at intervals, the supporting springs are horizontally supported on the sides, away from the axis of the damping seat, of the sliding blocks, and the ends, away from the supporting plate, of the supporting rods are rotationally connected to the upper end faces of the sliding blocks. The beneficial effects are that vibration transmitted to the motor is reduced, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric motors, in particular to an anti-vibration base of a permanent magnet variable frequency electric motor for a belt oil pumping unit. Background Art

[0002] Permanent magnet variable frequency motor is a synchronous permanent magnet motor that is started by a frequency converter. It is a variable frequency stepless speed regulating motor used with a synchronous frequency converter and can work under a variable frequency power supply. It is widely used in injection molding machines, air compressors, pipe making equipment, hydraulic machinery, food machinery, cement pipe making machines, plastic extruders, wire drawing machines, pharmaceutical equipment and other places, and has good performance in many fields.

[0003] The motor is fixed with a rigid connection. When the motor is working, the equipment on which the motor is installed will also work. The vibration generated during the operation of the equipment will directly act on the motor itself, which can easily cause the motor to become loose, causing the axis to shift during the operation of the motor, thereby affecting the working state of the motor, causing damage and reducing the service life of the motor. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a seismic-resistant base of a permanent magnet variable frequency motor for a belt oil pump, which solves the technical problem of reduced service life of the motor due to vibration.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] The embodiment of the utility model provides a seismic-resistant base of a permanent magnet variable-frequency motor for a belt oil pump, comprising a shock-absorbing support plate fixed to the bottom of the permanent magnet variable-frequency motor, a shock-absorbing seat arranged at the lower end of the shock-absorbing support plate, and a shock-absorbing assembly arranged at the upper end of the shock-absorbing seat to support the shock-absorbing support plate. The shock-absorbing assembly comprises a main support column vertically arranged in the middle of the lower end of the shock-absorbing support plate, a support plate arranged at the lower end of the main support column, a support rod evenly spaced circumferentially and rotatably connected to the circumferential side end of the support plate, a slider horizontally slidably arranged at the upper end of the shock-absorbing seat and evenly spaced circumferentially, and a support spring horizontally supported on the side of the slider away from the axis of the shock-absorbing seat, and the end of the support rod away from the support plate is rotatably connected to the upper end surface of the slider.

[0009] The embodiment of the utility model proposes a seismic-resistant base for a permanent magnet variable frequency motor for a belt oil pump. When the seismic-resistant base is used, the motor is directly fixed on the upper end surface of a shock-absorbing support plate. When the bottom transmits vibration, the shock-absorbing base is tilted to a certain extent. At the moment the shock-absorbing base tilts, the support spring will instantly extend, thereby supporting the support rod through a slider, thereby ensuring that the support plate remains in a horizontal state as much as possible, thereby reducing the vibration transmitted to the shock-absorbing support plate, thereby reducing the chance of the motor being vibrated and extending the service life of the motor.

[0010] Optionally, a plurality of sliding grooves are evenly spaced circumferentially arranged on the upper end surface of the shock absorber seat, the slider is slidably inserted in the sliding groove, the support spring is embedded in the sliding groove, and the end surface of the slider abutting against the inner wall of the sliding groove is rollingly embedded with balls.

[0011] By rolling and embedding balls on the side end surface of the slider, the movement of the slider in the slide groove changes from sliding friction to rolling friction, so that when the shock-absorbing seat is tilted by vibration, the braking of the slider is faster and more sensitive, thereby reducing the vibration transmitted to the shock-absorbing support plate.

[0012] Optionally, accordion telescopic covers are horizontally arranged on both side ends of the slider perpendicular to the length direction of the slide slot, and one end of the accordion telescopic cover away from the slider is fixed to the two ends of the slide slot. The accordion telescopic cover telescopes and expands as the slider moves and always covers the slide slot.

[0013] By arranging an accordion telescopic cover on the side end of the slider, the accordion telescopic cover can cover the slide groove, and as the shock-absorbing seat is tilted by vibration and causes the slider to move, the slide groove can still be effectively covered, thereby ensuring that the movement of the slider in the slide groove is not affected by external factors, thereby ensuring the success rate of earthquake resistance.

[0014] Optionally, a plurality of auxiliary support columns are inclined toward one side of the axis on the upper end surface of the shock absorbing seat, and the plurality of auxiliary support columns are evenly spaced circumferentially, and the auxiliary support columns include a lower support column fixed to the upper end surface of the shock absorbing seat and an upper support column slidably inserted on the top of the lower support column, the top of the upper support column is rotatably connected to the lower end surface of the shock absorbing support plate, and the top of the lower support column is provided with a socket for the upper support column to be slidably inserted, and the socket is filled with liquid gel.

[0015] By arranging a plurality of auxiliary support columns between the shock absorbing seat and the shock absorbing support plate, each auxiliary support column includes an upper support column and a lower support column, and the upper support column is slidably inserted into the insertion hole opened at the top of the upper support column, thereby improving the support for the shock absorbing support plate to ensure the stability of the motor when working.

[0016] Optionally, a plurality of flow channels connected to each of the jacks are horizontally opened inside the shock absorbing seat, and the flow channels converge at the middle of the shock absorbing seat.

[0017] By opening a flow channel inside the shock absorber seat and connecting the flow channel to the socket, the liquid gel in the socket can be gathered along the flow channel to the middle of the shock absorber seat. When vibration occurs, the liquid gel will flow along the flow channel, thereby ensuring that the liquid gel in multiple sockets always maintains the same level, thereby providing continuous and effective horizontal support to the shock absorber support plate, thereby ensuring effective support while assisting the shock absorbing component in shock absorption.

[0018] Optionally, a plurality of support platforms are vertically arranged on the upper end surface of the shock absorbing seat, and the upper end surfaces of the plurality of support platforms horizontally support support rings coaxially sleeved on the outer peripheral side of the main support column, and the upper end surface of the support ring is coaxially fixed with an annular airbag abutting against the lower end surface of the shock absorbing support plate.

[0019] A support platform is arranged on the upper end surface of the shock-absorbing seat, and a support ring is arranged on the upper end of the support platform, so that the support ring is coaxially sleeved on the outer peripheral side of the main support column, and the annular airbag is supported on the upper end of the support ring and abuts against the lower end of the shock-absorbing support plate, so that small vibrations can be directly filtered out through the annular airbag to ensure the stability of the shock-absorbing support plate.

[0020] Optionally, the inner and outer circumferential sides of the support ring are provided with isolation covers which are bonded to the lower end surface of the shock-absorbing support plate and protect the annular airbag.

[0021] By arranging isolation covers at the inner and outer peripheral sides of the support ring, the isolation covers are connected to the lower end of the shock-absorbing support plate, thereby isolating the annular airbag to ensure that it is not affected by the outside and is safer.

[0022] Optionally, the shock-absorbing support plate and the side ends of the shock-absorbing seat are vertically connected with a shielding curtain that shields the shock-absorbing assembly.

[0023] By vertically arranging a shielding curtain between the shock-absorbing support plate and the shock-absorbing seat, the entire shock-absorbing assembly can be better protected, thereby extending the service life of the anti-seismic base.

[0024] Optionally, a plurality of supporting legs are provided at the lower end of the shock absorbing seat, and shock absorbing pads are provided at the lower ends of the supporting legs.

[0025] By arranging a support foot at the lower end of the shock-absorbing seat and arranging a shock-absorbing pad at the bottom of the support foot, more fine vibrations can be filtered to improve the anti-seismic effect.

[0026] (III) Beneficial effects

[0027] The beneficial effects of the utility model are as follows: the utility model is a seismic-resistant base for a permanent magnet variable frequency motor for a belt oil pump. When the seismic-resistant base is used, the motor is directly fixed on the upper end surface of a shock-absorbing support plate. When the bottom transmits vibration, the shock-absorbing base is tilted to a certain extent. At the moment when the shock-absorbing base tilts, the support spring will instantly extend, thereby supporting the support rod through a slider, thereby ensuring that the support plate remains in a horizontal state as much as possible, thereby reducing the vibration transmitted to the shock-absorbing support plate, thereby reducing the probability of the motor being vibrated, and extending the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A cross-sectional view of an embodiment of the utility model;

[0029] Figure 2 It is a cross-sectional view of the second viewing angle of the embodiment of the utility model.

[0030] [Description of Reference Numerals]

[0031] 1. Shock-absorbing support plate; 2. Shock-absorbing seat; 21. Slide groove; 22. Support platform; 23. Support ring; 24. Annular airbag; 25. Isolation cover; 26. Auxiliary support column; 261. Lower support column; 2611. Socket; 262. Upper support column; 263. Flow channel; 3. Shock-absorbing assembly; 31. Main support column; 32. Support plate; 33. Support rod; 34. Slider; 341. Ball; 35. Support spring; 36. Organ telescopic cover; 4. Shielding curtain; 5. Support foot; 51. Shock-absorbing pad. DETAILED DESCRIPTION

[0032] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0033] The embodiment of the utility model proposes a seismic-resistant base for a permanent magnet variable frequency motor for a belt oil pump. When the seismic-resistant base is used, the motor is directly fixed on the upper end surface of the shock-absorbing support plate. When the bottom transmits vibration, the shock-absorbing base is tilted to a certain extent. At the moment the shock-absorbing base tilts, the support spring will instantly extend, thereby supporting the support rod through the slider, thereby ensuring that the support plate remains in a horizontal state as much as possible, thereby reducing the vibration transmitted to the shock-absorbing support plate, thereby reducing the chance of the motor being vibrated and extending the service life of the motor.

[0034] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0035] Reference Figure 1 and Figure 2 A seismic-resistant base of a permanent magnet variable frequency motor for a belt pumping unit includes a shock-absorbing support plate 1 fixed to the bottom of the permanent magnet variable frequency motor, a shock-absorbing seat 2 arranged at the lower end of the shock-absorbing support plate 1, and a shock-absorbing component 3 arranged at the upper end of the shock-absorbing seat 2 to support the shock-absorbing support plate 1.

[0036] The shock absorbing assembly 3 includes a main support column 31 vertically welded to the middle of the lower end of the shock absorbing support plate 1, a support plate 32 horizontally welded to the lower end of the main support column 31, support rods 33 evenly spaced in the circumferential direction and connected to the circumferential side of the support plate 32 through a rotating shaft, a slider 34 horizontally slidably arranged on the upper end of the shock absorbing seat 2 and evenly spaced in the circumferential direction, and a support spring 35 horizontally supported on the side of the slider 34 away from the axis of the shock absorbing seat 2, and one end of the support rod 33 away from the support plate 32 is connected to the upper end surface of the slider 34 through a rotating shaft. At the moment when the shock absorbing seat 2 tilts, the support spring 35 will instantly extend, thereby supporting the support rod 33 through the slider 34, thereby ensuring that the support plate 32 remains horizontal as much as possible, thereby reducing the vibration transmitted to the shock absorbing support plate 1.

[0037] A plurality of slide grooves 21 are evenly spaced in the circumferential direction on the upper end surface of the shock absorber 2, a slider 34 is slidably inserted in the slide groove 21, a support spring 35 is embedded in the slide groove 21, and a ball 341 is rolled and embedded in the end surface of the slider 34 abutting against the inner wall of the slide groove 21. This makes the movement of the slider 34 in the slide groove 21 change from sliding friction to rolling friction, and when the shock absorber 2 is tilted by vibration, the braking of the slider 34 is faster and more sensitive.

[0038] The two side ends of the slider 34 perpendicular to the length direction of the slide slot 21 are horizontally fixed with bellows telescopic covers 36 by bolts, and one end of the bellows telescopic cover 36 away from the slider 34 is fixed to the two ends of the slide slot 21 by bolts, and the bellows telescopic cover 36 is telescoped with the movement of the slider 34 and always shields the slide slot 21. The bellows telescopic cover 36 can shield the slide slot 21, and when the shock absorber seat 2 is vibrated and tilted, causing the slider 34 to move, the slide slot 21 can still be effectively shielded, thereby ensuring that the movement of the slider 34 in the slide slot 21 is not affected by the outside.

[0039] A plurality of support platforms 22 are vertically welded to the upper end surface of the shock-absorbing seat 2, and a support ring 23 coaxially sleeved on the outer peripheral side of the main support column 31 is horizontally welded to the upper end surface of the plurality of support platforms 22. An annular airbag 24 abutting against the lower end surface of the shock-absorbing support plate 1 is coaxially bonded and fixed to the upper end surface of the support ring 23. The annular airbag 24 is supported on the upper end of the support ring 23 and abuts against the lower end of the shock-absorbing support plate 1, so that small vibrations can be directly filtered out through the annular airbag 24 to ensure the stability of the shock-absorbing support plate 1. An isolation cover 25 bonded to the lower end surface of the shock-absorbing support plate 1 and protecting the annular airbag 24 is welded to the inner and outer peripheral sides of the support ring 23. The annular airbag 24 can be protected by the isolation cover 25.

[0040] The upper end surface of the shock-absorbing seat 2 is inclined toward the axis side and is provided with a plurality of auxiliary support columns 26, which are evenly spaced in the circumferential direction. The auxiliary support columns 26 include a lower support column 261 welded to the upper end surface of the shock-absorbing seat 2 and an upper support column 262 slidably inserted on the top of the lower support column 261. The top of the upper support column 262 is rotatably connected to the lower end surface of the shock-absorbing support plate 1 through a rotating shaft. The top of the lower support column 261 is provided with a plug hole 2611 for the upper support column 262 to be slidably inserted. The plug hole 2611 is filled with liquid gel. The shock-absorbing seat 2 has a plurality of flow channels 263 connected to each plug hole 2611 horizontally provided inside, and the flow channels 263 converge at the middle of the shock-absorbing seat 2. When vibration occurs, the liquid gel will flow along the flow channel 263, thereby ensuring that the liquid gel in the plurality of plug holes 2611 always maintains the same level, thereby continuously and effectively supporting the shock-absorbing support plate 1 horizontally, thereby ensuring effective support while assisting the shock-absorbing assembly 3 in shock absorption.

[0041] A shielding curtain 4 for shielding the shock absorbing component 3 is vertically fixed to the side ends of the shock absorbing support plate 1 and the shock absorbing seat 2 by bolts, and the shielding curtain 4 can protect the shock absorbing component 3.

[0042] A support leg 5 is vertically welded at the corner of the lower end of the shock-absorbing seat 2, and a shock-absorbing pad 51 is bonded to the lower end of the support leg 5, so as to filter more fine vibrations and improve the anti-seismic effect.

[0043] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0046] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A seismic-resistant base of a permanent magnet variable frequency motor for a belt pumping unit, characterized in that: The invention comprises a shock absorbing support plate (1) fixed to the bottom of a permanent magnet variable frequency motor, a shock absorbing seat (2) arranged at the lower end of the shock absorbing support plate (1), and a shock absorbing assembly (3) arranged at the upper end of the shock absorbing seat (2) to support the shock absorbing support plate (1), wherein the shock absorbing assembly (3) comprises a main support column (31) vertically arranged at the middle of the lower end of the shock absorbing support plate (1), a support plate (32) arranged at the lower end of the main support column (31), a support rod (33) evenly spaced in the circumferential direction and rotatably connected to the circumferential side end of the support plate (32), a slider (34) horizontally slidably arranged at the upper end of the shock absorbing seat (2) and evenly spaced in the circumferential direction, and a support spring (35) horizontally supported on the side of the slider (34) away from the axis of the shock absorbing seat (2), and the end of the support rod (33) away from the support plate (32) is rotatably connected to the upper end surface of the slider (34).

2. The anti-vibration base of the permanent magnet variable frequency motor for the belt pumping unit according to claim 1, characterized in that: The upper end surface of the shock absorbing seat (2) is provided with a plurality of sliding grooves (21) evenly spaced in the circumferential direction, the sliding block (34) is slidably inserted into the sliding groove (21), the supporting spring (35) is embedded in the sliding groove (21), and the end surface of the sliding block (34) abutting against the inner wall of the sliding groove (21) is rollingly embedded with a ball (341).

3. The anti-vibration base of the permanent magnet variable frequency motor for the belt pumping unit according to claim 2, characterized in that: The slider (34) is horizontally provided with accordion telescopic covers (36) on both side ends perpendicular to the length direction of the slide groove (21); one end of the accordion telescopic cover (36) away from the slider (34) is fixed to the two end parts of the slide groove (21); the accordion telescopic cover (36) is telescoped and extended along with the movement of the slider (34) and always covers the slide groove (21).

4. The anti-vibration base of the permanent magnet variable frequency motor for the belt pumping unit according to claim 1, characterized in that: The upper end surface of the shock absorbing seat (2) is inclined toward one side of the axis and is provided with a plurality of auxiliary support columns (26), the plurality of auxiliary support columns (26) being evenly spaced and distributed in the circumferential direction, the auxiliary support columns (26) comprising a lower support column (261) fixed to the upper end surface of the shock absorbing seat (2) and an upper support column (262) slidably inserted into the top of the lower support column (261), the top of the upper support column (262) being rotatably connected to the lower end surface of the shock absorbing support plate (1), the top of the lower support column (261) being provided with an insertion hole (2611) for the upper support column (262) to be slidably inserted, and the insertion hole (2611) is filled with liquid gel.

5. The anti-vibration base of the permanent magnet variable frequency motor for the belt pumping unit according to claim 4, characterized in that: A plurality of flow channels (263) connected to each of the insertion holes (2611) are horizontally opened inside the shock absorbing seat (2), and the flow channels (263) converge at the middle of the shock absorbing seat (2).

6. The anti-vibration base of the permanent magnet variable frequency motor for the belt pumping unit according to claim 1, characterized in that: The upper end surface of the shock-absorbing seat (2) is vertically provided with a plurality of support platforms (22), the upper end surfaces of the plurality of support platforms (22) horizontally support a support ring (23) coaxially sleeved on the outer peripheral side of the main support column (31), and the upper end surface of the support ring (23) is coaxially fixed with an annular air bag (24) abutting against the lower end surface of the shock-absorbing support plate (1).

7. The anti-vibration base of the permanent magnet variable frequency motor for the belt pumping unit according to claim 6, characterized in that: The inner and outer peripheral ends of the support ring (23) are provided with an isolation cover (25) which is bonded to the lower end surface of the shock-absorbing support plate (1) and protects the annular airbag (24).

8. The anti-vibration base of the permanent magnet variable frequency motor for the belt pumping unit according to claim 1, characterized in that: The side ends of the shock-absorbing support plate (1) and the shock-absorbing seat (2) are vertically connected with a shielding curtain (4) for shielding the shock-absorbing assembly (3).

9. The anti-vibration base of the permanent magnet variable frequency motor for the belt pumping unit according to claim 1, characterized in that: A plurality of supporting legs (5) are arranged at the lower end of the shock absorbing seat (2), and a shock absorbing pad (51) is arranged at the lower end of the supporting legs (5).

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