CN216714546U

CN216714546U - Generator set vibration isolator failure monitoring device

Info

Publication number: CN216714546U
Application number: CN202123043521.XU
Authority: CN
Inventors: 杨文�; 吕咪咪; 李庆强; 许连超
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-06-10
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a generator set vibration isolator failure monitoring device, which comprises a vibration isolator component and an alarm component, wherein the vibration isolator component comprises a vibration isolator used for supporting a generator set and performing vibration isolation protection on the generator set, the vibration isolator comprises a bottom frame, a support frame capable of acting along the axial direction of the bottom frame is arranged on the bottom frame, the support frame is connected with the generator set, a contact communicating component is connected between the bottom frame and the support frame, the contact communicating component comprises a movable contact, an anode contact and a cathode contact which are arranged at intervals are arranged below the movable contact, the movable contact is arranged on the support frame, and the anode contact and the cathode contact are respectively arranged on the bottom frame; the movable contact can be simultaneously and electrically connected with the positive contact and the negative contact when moving axially, and the positive contact and the negative contact are also respectively and electrically connected with the alarm component. Through setting up structures such as contact subassembly, can solve the not strong problem of the inefficacy device persistence of monitoring isolator, improve the reliability.

Description

Generator set vibration isolator failure monitoring device

Technical Field

The utility model relates to the technical field of monitoring, in particular to a generator set vibration isolator failure monitoring device.

Background

With the increasing demand of electric power, the demand of the generator set is increased, the application range of the generator set is wider, the generator set can not be used in mine development, communication base stations, remote mountain areas and the like, and the generator set plays an important role under special working conditions. The generator set comprises a generator, an engine and the like, the generator set drives the generator to generate electricity by the aid of power supplied by the engine, however, the engine can generate severe vibration during operation, great influence is caused on service life and reliability of the generator set, and serious accidents such as scrapping of the generator set can be caused in serious cases. Therefore, the influence of vibration generated by the engine during working on the service life and the reliability of the generator set is very important, and in order to ensure long-time stable working of the generator set, the vibration isolator is usually adopted to support the engine so as to reduce the damage of the vibration generated by the engine during working on the generator set.

However, the vibration isolator is easy to fail due to the fact that the operation of a user is not standard when the vibration isolator is installed or used, and the vibration isolator is not easy to find after the failure, so that the generator set which loses the vibration isolation protection is easy to damage or scrap under the condition of long-time high vibration. At present, the problem of failure of the vibration isolator is solved by a utility model patent with the patent name of 'vibration isolator system and engine system' and the application number of '202022601057.0', a mode of combining a piezoelectric sensor and an alarm system is adopted, the condition of axial pressure borne by a limit bolt is detected in real time through the piezoelectric sensor, a pressure signal is formed and provided for the alarm system, and the alarm system gives out failure alarm according to the pressure signal; the scheme adopts an electrical element monitoring mode which is always in a power-on state, and when the monitoring device is used, the monitoring device is easily influenced by the outside, the electrical element is easily damaged, the reliability is low, and the monitoring device is not suitable for long-term monitoring.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to solve the technical problems that a device for monitoring the failure of the vibration isolator is not strong in durability and low in reliability, and the phenomenon that the failure condition of the vibration isolator cannot be monitored is easily caused after the device is damaged, so that a generator set is damaged.

In order to solve the technical problem, the utility model comprises a vibration isolator assembly and an alarm assembly, wherein the vibration isolator assembly comprises a vibration isolator used for supporting a generator set and performing vibration isolation protection on the generator set, the vibration isolator comprises an underframe, and the vibration isolator is characterized in that: the device comprises a chassis, a generator set, a contact connecting assembly, a power supply unit and a power supply unit, wherein the chassis is provided with a support frame capable of acting along the axial direction of the chassis, the support frame is connected with the generator set, the contact connecting assembly is connected between the chassis and the support frame and comprises a movable contact, a positive contact and a negative contact which are arranged at intervals are arranged below the movable contact, the movable contact is arranged on the support frame, and the positive contact and the negative contact are respectively arranged on the chassis; the movable contact can be simultaneously and electrically connected with the positive contact and the negative contact when moving axially, and the positive contact and the negative contact are also respectively and electrically connected with the alarm component.

After the structure is adopted, the on-off of the circuit is realized by controlling the on-off of the contact connection component, so that the aim of alarming is fulfilled; the phenomenon that the failure condition of the vibration isolator cannot be monitored easily after the failure device is damaged due to the fact that the durability of the failure device for monitoring the vibration isolator is not strong is avoided.

Preferably, the chassis includes the base and installs the bottom suspension body on the base, the support frame includes the support body, be provided with the elastomer on the outer wall of bottom suspension body, the elastomer is connected on the inner wall of last support body, be fixed with on the last support body and drive its spacing body along bottom suspension body axial motion.

Preferably, the distance between the central cylinders of the lower and upper supports in the vertical direction is not less than the distance between the moving contact and the positive and negative contacts.

Preferably, the base is provided with a contact fixing seat, and the positive contact and the negative contact are both installed on the contact fixing seat.

Preferably, the upper support body comprises a conical fixed cylinder and a horizontally arranged limiting cylinder connected with the outer wall of the conical fixed cylinder, and the fixed cylinder is in threaded connection with the limiting body through a fastening nut; the lower support body comprises a conical guide cylinder and a horizontally arranged positioning cylinder connected with the lower end part of the guide cylinder, and the positioning cylinder is connected with the limiting body in a sliding manner; and an elastic body is connected between the inner wall of the fixed cylinder and the outer wall of the guide cylinder.

Preferably, the number of the vibration isolators is multiple, and the multiple vibration isolators are evenly distributed on the periphery of the generator set.

Preferably, the alarm assembly comprises an electric control unit and an alarm connected with the electric control unit, and the positive contact and the negative contact are connected with the electric control unit and the alarm in series.

Preferably, the alarm assembly further comprises an image camera capable of monitoring the contact communicating assembly in real time, and the image camera is connected with the electronic control unit.

In conclusion, the vibration isolation condition of the vibration isolator is monitored by combining the contact connection component and the alarm component, and the alarm component prompts an operator to check, maintain or replace the vibration isolator after the vibration isolator fails, so that serious faults such as scrapping of a generator set and the like caused by the failure of the vibration isolator are avoided; this scheme simple structure, the contact intercommunication subassembly that sets up is difficult for receiving external influence, and the reliability is high, can effectually play the monitoring guard action to the isolator in real time, and when the isolator appears unusually, the suggestion of can in time reporting to the police avoids appearing generating set because of vibrating the major trouble such as scrapping that leads to greatly, has reduced the potential safety hazard.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and the description of the exemplary embodiments of the present application are provided for explaining the present application and do not constitute an undue limitation on the present application. In the drawings:

FIG. 1 is a schematic structural view of the vibration isolator of the present invention in a normal state;

FIG. 2 is a schematic structural view of the vibration isolator of the present invention in failure;

FIG. 3 is a schematic structural view of the vibration isolator of the present invention;

FIG. 4 is a schematic structural view of the upper support of the present invention;

FIG. 5 is a schematic view of the structure of the lower support according to the present invention;

fig. 6 is a flow chart of the vibration isolator failure monitoring of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to fig. 1 to 6.

This generating set isolator monitoring devices that loses efficacy mainly is based on protecting generating set for the purpose, monitors the vibration isolation condition of isolator through monitoring contact intercommunication subassembly and warning subassembly 9, guarantees when the isolator became invalid, in time reports to the police, reminds the staff to maintain or change the isolator, avoids generating set to be in under the high vibration for a long time and lead to generating set's harm or scrap.

The vibration isolator failure monitoring device comprises a vibration isolator assembly, a contact communication assembly and an alarm assembly 9; the vibration isolator subassembly includes the vibration isolator that is used for supporting generating set and carries out the vibration isolation protection to it, and the quantity of vibration isolator can be set to a plurality ofly, and a plurality of vibration isolators evenly distributed is at generating set's periphery. Typically, the following failure modes are used for vibration isolators: bolt falling and bottom touching, rubber aging and failure, engine oil or fuel oil permeating into rubber parts or natural aging of rubber to the service life and the like caused by damage of a mechanical structure; moreover, the service lives of the rubbers are different in different environments, so that the real-time monitoring of the working state of the vibration isolator is very necessary, and more serious consequences are avoided.

The vibration isolator comprises an underframe 3, the underframe 3 comprises a base 31 and a lower support body 32 arranged on the base 31, the lower support body 32 comprises a conical guide cylinder 321 and a positioning cylinder 322 horizontally connected with the outer wall of the guide cylinder, a limiting body 43 is slidably connected in the central hole of the positioning cylinder 322, the limiting body 43 is used for connecting the engine and the vibration isolator, the limiting body 43 can adopt fasteners with threads at the end parts such as bolts and studs, and also can be connecting pieces which can be fixedly connected with the engine and the vibration isolator such as rod-shaped bodies. A plurality of positioning holes are uniformly distributed on the end surface of the positioning cylinder 322, the positioning holes are through holes, a positioning bolt or a stud is inserted into each positioning hole, and the lower end of the positioning bolt or the stud passes through the positioning cylinder 322 and is fixedly connected with the lower nut.

The chassis 3 is provided with a support frame 4 which can move along with the vibration of the generator set, namely the support frame 4 can move axially, the support frame 4 comprises an upper support body 41, the upper support body 41 comprises a conical fixed cylinder 411 and a horizontally arranged limit cylinder 412 connected with the outer wall of the lower end part of the conical fixed cylinder 411, and the fixed cylinder 411 and the limit body 43 are fixedly connected through a fastening nut 42. An elastic body 34 is connected between the inner wall of the fixed cylinder 411 and the outer wall of the guide cylinder 321, and the elastic body 34 can adopt a telescopic structure such as rubber and a spring to ensure that a vibration damping function is provided for the engine. A plurality of limiting holes are uniformly distributed on the end surface of the limiting cylinder 412, the limiting holes are through holes, each limiting hole is matched with the positioning bolt or the stud, and the upper end of the positioning bolt or the stud passes through the limiting cylinder 412 and is fixedly connected with the upper nut; the upper supporting body 41 can move axially along with the limiting body 43, the movement stroke of the upper supporting body is limited, and the elastic body 34 is protected.

The contact communication component comprises a movable contact 5 arranged on the support frame 4, namely arranged at the bottom of the limiting body 43; the chassis 3 is provided with a positive contact 6 and a negative contact 7 which are arranged corresponding to the movable contact 5, the base 31 is also provided with a contact fixing seat 33, namely the positive contact 6 and the negative contact 7 are arranged on the contact fixing seat 33, the positive contact 6 and the negative contact 7 are arranged at intervals and are respectively arranged below the movable contact 5 and can be abutted against the movable contact 5 in the movement process of the movable contact 5; the anode contact 6 and the cathode contact 7 are also respectively electrically connected with an alarm component 9. At present, the fixed movable contact 5 has more forms, can be welded, pasted and also can be made into a flashlight switch pattern, as long as the use requirement is met; the fixed form of positive contact 6 and negative contact 7 equally can be diversified, can adopt the buckle form to block, can adopt the welding or paste the form, as long as can satisfy drive movable contact 5 at spacing body 43 and move down can switch on simultaneously with positive contact 6 and negative contact 7 can. The positive contact 6 and the negative contact 7 can be on the same horizontal line, the vertical distance from the movable contact 5 to the two contacts is equal, and the vertical distance is not greater than the shortest distance from the bottom of the limiting cylinder 412 to the top of the positioning cylinder 322, so that the movable contact 5 can be smoothly communicated with the positive contact 6 and the negative contact 7 in the downward moving process.

Wherein, the distance between the lower supporter 32 and the central cylinder of the upper supporter 41 in the vertical direction is not less than the distance between the movable contact 5 and the positive contact 6 and the negative contact 7; that is, the distance between the lower end surface of the positioning cylinder 322 and the upper end surface of the limiting cylinder 412 is not less than the vertical distance between the movable contact 5 and the positive contact 6 and the negative contact 7.

The alarm assembly 9 comprises an electric control unit and an alarm connected with the electric control unit, and the positive contact 6 and the negative contact 7 are connected with the electric control unit and the alarm in series; the alarm assembly 9 further comprises an image camera capable of monitoring the contact communicating assembly in real time, the image camera is connected with the electric control unit, the states of the movable contact 5, the positive contact 6 and the negative contact 7 are monitored in real time, and when the using state is not good, a worker is timely reminded to maintain or replace the movable contact. The electronic control unit receives the signal of the alarm, and if no person operates the electronic control unit within a certain time, the electronic control unit can control the engine to stop temporarily, so that greater loss is avoided. The electronic control unit comprises a receiving unit, a processing unit and an output unit, wherein the receiving unit is used for receiving information, the processing unit is used for processing the information received by the receiving unit, and the output unit is used for issuing a command according to the processing result of the processing unit.

In the normal power generation process of the generator set, if the elastic body 34 is normal and the vibration isolator is in a normal working state, the movable contact 5 at the bottom of the limiting body 43 is not in contact with the positive contact 6 and the negative contact 7 on the contact fixing seat 33, the alarm component 9 is not electrified, and the alarm does not give an alarm; if the elastic body 34 fails, the elastic support of the elastic body is deteriorated, so that the upper supporting body 41 and the limiting body 43 integrally move downwards, the distance between the upper supporting body 41 and the lower supporting body 32 is reduced, and when the movable contact 5 at the bottom of the limiting body 43 falls to be in contact with the positive contact 6 and the negative contact 7, the elastic body 34 completely fails, the vibration absorption supporting effect is not played any more, the vibration isolator fails, and the vibration of the engine which loses vibration isolation support is aggravated.

When the engine unit normally works, the movable contact 5 arranged on the limiting body 43 is not communicated with the positive contact 6 and the negative contact 7 arranged on the underframe 3, the circuit is broken, and the alarm component 9 does not give an alarm at the moment; when elastomer 34 in the isolator subassembly became invalid, go up supporter 41 along with spacing body 43 along the axial move down, moving contact 5 also moved down thereupon this moment, when moving contact 5 moved to communicate with positive contact 6 and negative contact 7, alarm component 9 circular telegram was reported to the police, reminds the staff in time to detect, maintain or change the isolator of generating set, avoids bringing serious destruction to generating set after the isolator became invalid. The device has a simple structure, the contact communicating component is additionally arranged at the bottom of the vibration isolator bolt, the monitoring and protecting effect on the generator set is completed by matching the monitoring component and the alarm component 9 aiming at the failure monitoring of the vibration isolator of the generator set, compared with an electronic component which is always electrified for monitoring, the device has high reliability, is suitable for long-term monitoring, has a simple structure and low cost, can effectively play a monitoring and protecting effect on the vibration isolator in real time, gives an alarm prompt in time when the vibration isolator is abnormal, avoids major faults such as scrapping of the generator set caused by overlarge vibration and the like, and reduces potential safety hazards.

The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. A generating set isolator failure monitoring device, includes isolator subassembly and warning subassembly (9), the isolator subassembly is including being used for supporting generating set and carrying out the isolator of vibration isolation protection to it, the isolator includes chassis (3), its characterized in that: the electric generator comprises a base frame (3), wherein a supporting frame (4) capable of moving along the axial direction of the base frame is arranged on the base frame (3), the supporting frame (4) is connected with a generator set, a contact communicating component is connected between the base frame (3) and the supporting frame (4), the contact communicating component comprises a movable contact (5), an anode contact (6) and a cathode contact (7) which are arranged at intervals are arranged below the movable contact (5), the movable contact (5) is arranged on the supporting frame (4), and the anode contact (6) and the cathode contact (7) are respectively arranged on the base frame (3); the movable contact (5) can be simultaneously and electrically connected with the positive contact (6) and the negative contact (7) during axial movement, and the positive contact (6) and the negative contact (7) are also respectively and electrically connected with the alarm component (9).

2. The apparatus of claim 1, wherein the generator set vibration isolator failure monitoring device is further configured to: chassis (3) include base (31) and install bottom suspension body (32) on base (31), support frame (4) are including last supporter (41), be provided with elastomer (34) on the outer wall of bottom suspension body (32), elastomer (34) are connected on the inner wall of last supporter (41), it can drive its spacing body (43) along bottom suspension body (32) axial motion to be fixed with on last supporter (41).

3. The apparatus of claim 2, wherein the generator set vibration isolator failure monitoring device is further configured to: the distance between the lower support body (32) and the central cylinder of the upper support body (41) in the vertical direction is not less than the distance between the movable contact (5) and the positive contact (6) and the negative contact (7).

4. The apparatus of claim 2, wherein the generator set vibration isolator failure monitoring device is further configured to: be provided with contact fixing base (33) on base (31), positive pole contact (6) and negative pole contact (7) are all installed on contact fixing base (33).

5. The apparatus of claim 2, wherein the generator set vibration isolator failure monitoring device is further configured to: the upper supporting body (41) comprises a conical fixed cylinder (411) and a horizontally arranged limiting cylinder (412) connected with the outer wall of the conical fixed cylinder, and the fixed cylinder (411) is in threaded connection with the limiting body (43) through a fastening nut (42); the lower supporting body (32) comprises a conical guide cylinder (321) and a horizontally arranged positioning cylinder (322) connected with the lower end part of the conical guide cylinder, and the positioning cylinder (322) is connected with the limiting body (43) in a sliding manner; an elastic body (34) is connected between the inner wall of the fixed cylinder (411) and the outer wall of the guide cylinder (321).

6. The apparatus of claim 1, wherein the generator set vibration isolator failure monitoring device is further configured to: the number of the vibration isolators is set to be a plurality, and the plurality of vibration isolators are evenly distributed on the periphery of the generator set.