CN213817465U

CN213817465U - Overload protection device for centrifuge motor

Info

Publication number: CN213817465U
Application number: CN202023184879.XU
Authority: CN
Inventors: 谢勇
Original assignee: Zhangjiagang Jiyu Machinery Manufacturing Co ltd
Current assignee: Zhangjiagang Jiyu Machinery Manufacturing Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-07-27
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a centrifuge motor technical field specifically discloses an overload protection device for centrifuge motor, including the collar, two mounting holes that longitudinal symmetry distributes are seted up to the inside of collar, two the equal fixed mounting in inside of mounting hole has electric putter, two the equal fixed mounting in electric putter's right side has respectively with two mounting hole swing joint's loose axle, two all with first bearing fixed connection between the loose axle, the movable hole that is located the first bearing outside is seted up to the inside of collar, the inside fixed mounting of first bearing has the piston. This centrifuge motor is with overload protection device possesses overload protection's advantage, has solved prior art, and the centrifuge motor is in the use, when the load is too big, leads to the centrifuge motor to transship easily and damage, and the damage of centrifuge motor can cause huge economic loss, and protection device is difficult to play the problem of effective protection to the centrifuge motor at present.

Description

Overload protection device for centrifuge motor

Technical Field

The utility model relates to a centrifuge motor technical field specifically is an overload protection device for centrifuge motor.

Background

A common centrifuge motor uses a series excited machine and is controlled by silicon controlled rectifier, the speed regulation range of the motor controlled by the series excited machine is smaller, the control precision is low, the centrifuge motor is composed of a rotating shaft, an upper cover, an upper bearing, a shell, a lower bearing, a lower seat, a rotor, pan head screws and a stator, the control method adopts frequency conversion technology control, frequency converters of different models are selected and matched according to different powers and different rotating speeds of the motor, and the frequency converter parameters are set according to requirements, the control range is large, the control precision is high, the control error is small, and the centrifuge motor has the advantages of stable operation, small vibration and small noise.

Among the prior art, the centrifuge motor is in the use, when the load is too big, leads to the centrifuge motor to transship easily and damage, and the damage of centrifuge motor can cause huge economic loss, and present protection device is difficult to play effectual protection to the centrifuge motor, so provides an overload protection device for centrifuge motor and solves the above-mentioned problem of proposing.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an overload protection device for centrifuge motor possesses overload protection's advantage, has solved prior art, and the centrifuge motor is in the use, when the load is too big, leads to centrifuge motor to transship easily and damage, and the damage of centrifuge motor can cause huge economic loss, and protection device is difficult to play the problem of effective protection to the centrifuge motor at present.

(II) technical scheme

In order to realize the purpose of the overload protection, the utility model provides a following technical scheme: an overload protection device for a centrifuge motor comprises a mounting ring, wherein two mounting holes which are symmetrically distributed up and down are formed in the mounting ring, electric push rods are fixedly mounted in the two mounting holes, movable shafts which are respectively movably connected with the two mounting holes are fixedly mounted on the right sides of the two electric push rods, the two movable shafts are fixedly connected with a first bearing, movable holes which are positioned on the outer side of the first bearing are formed in the mounting ring, a piston is fixedly mounted in the first bearing, an inserting block is fixedly mounted on the right side of the piston, a rectangular shaft is fixedly mounted on the left side of the piston, a second bearing is fixedly mounted in the mounting ring, a left rotating shaft is fixedly mounted in the second bearing, a rectangular hole which is positioned on the outer side of the rectangular shaft is formed in the left rotating shaft, and a third bearing is fixedly mounted in the mounting ring, the inside fixed mounting of third bearing has the right pivot, the slot that is located the inserted block outside is seted up in the left side of right pivot.

Preferably, the movable hole is movably connected with the first bearing, and the movable hole is located between the left rotating shaft and the right rotating shaft.

Preferably, the left side of the left rotating shaft penetrates through and extends to the left side of the mounting ring, and the left rotating shaft is movably connected with the mounting ring.

Preferably, the shape of the rectangular hole is matched with that of the rectangular shaft, and the rectangular hole is movably connected with the rectangular shaft.

Preferably, the piston is located between the left rotating shaft and the right rotating shaft and is movably connected with the left rotating shaft and the right rotating shaft respectively.

Preferably, the shape of the insertion block is matched with that of the slot, and the insertion block is movably connected with the slot.

(III) advantageous effects

Compared with the prior art, the utility model provides an overload protection device for centrifuge motor possesses following beneficial effect:

this overload protection device for centrifuge motor, during normal drive, two electric putter promote two loose axle respectively and move to the right side, two loose axle move to the right side and drive first bearing and move to the right side, first bearing drives the piston and moves to the right side, inserted block and slot meshing when the piston moves to the right side, the left-hand member rotates through rectangular axle and piston drive right pivot, when transshipping, electric putter drives the movable shaft and moves to the left side, the loose axle drives first bearing and piston and moves to the left side, the inserted block on piston right side breaks away from the slot, lose the connection between inserted block on piston right side and the right-hand member, prevent overload damage centrifuge motor, overload protection's purpose has been reached.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic view of the piston structure of the present invention.

In the figure: 1. a mounting ring; 2. mounting holes; 3. a movable hole; 4. a second bearing; 5. an electric push rod; 6. a movable shaft; 7. a left rotating shaft; 8. a rectangular hole; 9. a rectangular shaft; 10. a first bearing; 11. a piston; 12. inserting a block; 13. a slot; 14. a right rotating shaft; 15. and a third bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: an overload protection device for a centrifuge motor comprises a mounting ring 1, two mounting holes 2 which are distributed up and down symmetrically are arranged in the mounting ring 1, electric push rods 5 are fixedly arranged in the two mounting holes 2, movable shafts 6 which are respectively movably connected with the two mounting holes 2 are fixedly arranged on the right sides of the two electric push rods 5, the two movable shafts 6 are fixedly connected with a first bearing 10, movable holes 3 which are positioned on the outer side of the first bearing 10 are arranged in the mounting ring 1, a piston 11 is fixedly arranged in the first bearing 10, an inserting block 12 is fixedly arranged on the right side of the piston 11, a rectangular shaft 9 is fixedly arranged on the left side of the piston 11, a second bearing 4 is fixedly arranged in the mounting ring 1, a left rotating shaft 7 is fixedly arranged in the second bearing 4, the left side of the left rotating shaft 7 penetrates through and extends to the left side of the mounting ring 1, and the left rotating shaft 7 is movably connected with the mounting ring 1, the inside of the left rotating shaft 7 is provided with a rectangular hole 8 positioned on the outer side of the rectangular shaft 9, the shape of the rectangular hole 8 is matched with the shape of the rectangular shaft 9, the rectangular hole 8 is movably connected with the rectangular shaft 9, the inside of the mounting ring 1 is fixedly provided with a third bearing 15, the inside of the third bearing 15 is fixedly provided with a right rotating shaft 14, the movable hole 3 is movably connected with the first bearing 10, the movable hole 3 is positioned between the left rotating shaft 7 and the right rotating shaft 14, the left side of the right rotating shaft 14 is provided with a slot 13 positioned on the outer side of an inserting block 12, a piston 11 is positioned between the left rotating shaft 7 and the right rotating shaft 14, the piston 11 is respectively movably connected with the left rotating shaft 7 and the right rotating shaft 14, the shape of the inserting block 12 is matched with the shape of the slot 13, the inserting block 12 is movably connected with the slot 13, during normal driving, the two electric push rods 5 respectively push the two movable shafts 6 to move towards the right side, the two movable shafts 6 move towards the right side to drive the first bearing 10 to move towards the right side, first bearing 10 drives piston 11 and moves to the right side, inserted block 12 and slot 13 meshing when piston 11 moves to the right side, left-hand rotating shaft 7 drives right-hand rotating shaft 14 through rectangular shaft 9 and piston 11 and rotates, when transshipping, electric putter 5 drives loose axle 6 and moves to the left side, loose axle 6 drives first bearing 10 and piston 11 and moves to the left side, inserted block 12 on piston 11 right side breaks away from slot 13, lose between inserted block 12 on piston 11 right side and the right-hand rotating shaft 14 and be connected, prevent overload damage centrifuge motor, overload protection's purpose has been reached.

In summary, in the overload protection device for the centrifuge motor, during normal driving, the two electric push rods 5 respectively push the two movable shafts 6 to move towards the right, the two movable shafts 6 move towards the right to drive the first bearing 10 to move towards the right, the first bearing 10 drives the piston 11 to move towards the right, the insertion block 12 is engaged with the slot 13 when the piston 11 moves towards the right, the left rotating shaft 7 drives the right rotating shaft 14 to rotate through the rectangular shaft 9 and the piston 11, when overload occurs, the electric push rods 5 drive the movable shafts 6 to move towards the left, the movable shafts 6 drive the first bearing 10 and the piston 11 to move towards the left, the insertion block 12 at the right side of the piston 11 is disengaged from the slot 13, the connection between the insertion block 12 at the right side of the piston 11 and the right rotating shaft 14 is lost, the damage of the centrifuge motor due to overload is prevented, the purpose of overload protection is achieved, and the problem in the prior art is solved that when the centrifuge motor is under an excessive load during use, the motor of the centrifuge is easily overloaded and damaged, the damage of the motor of the centrifuge can cause huge economic loss, and the current protection device is difficult to effectively protect the motor of the centrifuge.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an overload protection device for centrifuge motor, includes collar (1), its characterized in that: the mounting ring is characterized in that two mounting holes (2) which are symmetrically distributed from top to bottom are formed in the mounting ring (1), electric push rods (5) are fixedly mounted in the mounting holes (2), movable shafts (6) which are respectively movably connected with the two mounting holes (2) are fixedly mounted on the right sides of the electric push rods (5), two movable shafts (6) are fixedly connected with a first bearing (10), movable holes (3) which are positioned on the outer side of the first bearing (10) are formed in the mounting ring (1), a piston (11) is fixedly mounted in the first bearing (10), an insert block (12) is fixedly mounted on the right side of the piston (11), a rectangular shaft (9) is fixedly mounted on the left side of the piston (11), a second bearing (4) is fixedly mounted in the mounting ring (1), and a left rotating shaft (7) is fixedly mounted in the second bearing (4), rectangular hole (8) that are located the rectangle axle (9) outside are seted up to the inside of left side pivot (7), the inside fixed mounting of collar (1) has third bearing (15), the inside fixed mounting of third bearing (15) has right pivot (14), slot (13) that are located the inserted block (12) outside are seted up in the left side of right pivot (14).

2. The overload protection device for the centrifuge motor according to claim 1, wherein: the movable hole (3) is movably connected with the first bearing (10), and the movable hole (3) is positioned between the left rotating shaft (7) and the right rotating shaft (14).

3. The overload protection device for the centrifuge motor according to claim 1, wherein: the left side of the left rotating shaft (7) penetrates through and extends to the left side of the mounting ring (1), and the left rotating shaft (7) is movably connected with the mounting ring (1).

4. The overload protection device for the centrifuge motor according to claim 1, wherein: the shape of the rectangular hole (8) is matched with that of the rectangular shaft (9), and the rectangular hole (8) is movably connected with the rectangular shaft (9).

5. The overload protection device for the centrifuge motor according to claim 1, wherein: the piston (11) is positioned between the left rotating shaft (7) and the right rotating shaft (14), and the piston (11) is movably connected with the left rotating shaft (7) and the right rotating shaft (14) respectively.

6. The overload protection device for the centrifuge motor according to claim 1, wherein: the shape of the insertion block (12) is matched with that of the slot (13), and the insertion block (12) is movably connected with the slot (13).