阅读说明：本技术 一种发电机用的轴电流检测装置 (Shaft current detection device for generator ) 是由 周定明 于 2019-09-25 设计创作，主要内容包括：本发明公开了一种发电机用的轴电流检测装置,包括电机机体和夹耳,所述电机机体的外壁连接有固定环,且固定环的外侧设置有检测机体,所述夹耳设置于检测机体的外壁四周,且夹耳的一端圆心处贯穿有螺栓,所述螺栓与夹耳连接处贴合有垫片,且螺栓的底部螺纹连接有连接板,所述连接板的另一端贯穿有双头螺杆,所述检测机体通过导线电性连接有输出端口。该发电机用的轴电流检测装置设置有夹耳,夹耳呈三角状分布,当使用者需要将检测机体固定在电机机体内时,可将双头螺杆插入预开设地方,通过螺栓对双头螺杆与电机机体进行固定连接,同时整个连接板为旋转结构,能够有效满足不同型号的检测机体的固定安装。(The invention discloses a shaft current detection device for a generator, which comprises a motor body and clamping lugs, wherein the outer wall of the motor body is connected with a fixing ring, the outer side of the fixing ring is provided with the detection body, the clamping lugs are arranged on the periphery of the outer wall of the detection body, a bolt penetrates through the circle center of one end of each clamping lug, a gasket is attached to the joint of the bolt and the clamping lug, the bottom of the bolt is in threaded connection with a connecting plate, a stud bolt penetrates through the other end of the connecting plate, and the detection body is electrically connected with an output port through a wire. This axle current detection device that generator used is provided with the clamping lug, and the clamping lug is three horn shapes and distributes, when the user needs to detect the organism and fix in the motor organism, can insert the stud and open in advance and establish the place, carries out fixed connection through the bolt to stud and motor organism, and whole connecting plate is revolution mechanic simultaneously, can effectively satisfy the fixed mounting of the detection organism of different models.)

1. The utility model provides an axle current detection device that generator was used, includes motor organism (1) and clamping ear (4), its characterized in that: the outer wall connection of motor organism (1) has solid fixed ring (2), and the outside of solid fixed ring (2) is provided with detects organism (3), clamp lug (4) set up around the outer wall that detects organism (3), and the one end centre of a circle department of clamp lug (4) runs through bolt (5), the laminating of bolt (5) and clamp lug (4) junction has gasket (6), and the bottom threaded connection of bolt (5) has connecting plate (7), the other end of connecting plate (7) runs through stud (8), it has output port (9) to detect organism (3) through wire electric connection, and output port (9) have detecting instrument (10) through wire electric output connection.

2. The shaft current detection device for a generator according to claim 1, characterized in that: the fixing ring (2) is distributed along the circle center of the motor body (1), and the fixing ring (2) and the motor body (1) are mutually attached.

3. The shaft current detection device for a generator according to claim 1, characterized in that: the clamping lugs (4) are uniformly distributed around the outer wall of the detection machine body (3), and the detection machine body (3) and the clamping lugs (4) are of a welding integrated structure.

4. The shaft current detection device for a generator according to claim 1, characterized in that: the connecting plate (7) forms a rotating structure with the clamping lugs (4) through bolts (5), and the clamping lugs (4) are distributed in a triangular shape.

5. The shaft current detection device for a generator according to claim 1, characterized in that: the detection instrument (10) is electrically connected with the detection machine body (3) in parallel through the output port (9).

Technical Field

The invention relates to the technical field of advanced manufacturing and automation, electric power systems and equipment, power generation and energy storage, in particular to a shaft current detection device for a generator.

Background

The generator set is a complete set of mechanical equipment for converting energy in other forms into electric energy and consists of a power system, a control system, a silencing system, a damping system and an exhaust system.

When the generator set runs, a main shaft of the generator set can generate current flowing through the main shaft due to the influence of an electromagnetic field and the like, and when the current value is too high, secondary harm generated by the generator set comprises that the bearing bush is corroded due to discharge, and the bearing bush of the main shaft can be burnt; and similarly, the running temperature of the unit is increased due to the overhigh shaft current value, the output of the whole unit is influenced, the shaft current of the unit is monitored, the stable running of the unit is ensured, and the accident defect generated in the running of the unit is prevented.

Disclosure of Invention

The invention aims to provide a shaft current detection device for a generator, which aims to solve the problems that when a generator set provided by the background art runs, a main shaft of the generator set can generate current flowing through the main shaft due to the influence of an electromagnetic field and the like, and when the current value is too high, the generated secondary harm comprises that the bearing bush is corroded due to the discharge of the bearing bush, and the bearing bush of the main shaft can be burnt; and similarly, the running temperature of the unit is increased due to the overhigh shaft current value, the output of the whole unit is influenced, the shaft current of the unit is monitored, the stable running of the unit is ensured, and the accident defect generated in the running of the unit is prevented.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an axle current detection device that generator used, includes motor organism and clamp lug, the outer wall connection of motor organism has solid fixed ring, and solid fixed ring's the outside is provided with the detection organism, the clamp lug sets up around the outer wall that detects the organism, and the one end centre of a circle department of clamp lug runs through there is the bolt, the laminating of bolt and clamp lug junction has the gasket, and the bottom threaded connection of bolt has a connecting plate, the other end of connecting plate runs through there is threaded screw, the detection organism has the output port through wire electric connection, and the output port has detecting instrument through wire electric output connection.

Preferably, the fixed ring is distributed along the circle center of the motor body, and the fixed ring and the motor body are mutually attached.

Preferably, the clamping lugs are uniformly distributed around the outer wall of the detection machine body, and the detection machine body and the clamping lugs are of a welding integrated structure.

Preferably, the connecting plate forms a rotating structure through the bolt and the clamping lugs, and the clamping lugs are distributed in a triangular shape.

Preferably, the detection instrument is electrically connected in parallel with the detection machine body through the output port.

Compared with the prior art, the invention has the beneficial effects that: the shaft current detection device for the generator is provided with the clamping lugs which are distributed in a triangular shape, when a user needs to fix the detection machine body in the motor machine body, the double-headed screw can be inserted into a preset place, the double-headed screw is fixedly connected with the motor machine body through a bolt, and meanwhile, the whole connecting plate is of a rotating structure, so that the fixed installation of the detection machine bodies of different models can be effectively met;

the detection instrument is electrically connected with the detection machine body in parallel through the output port, when the motor machine body rotates and operates, the hollow annular mutual inductor in the detection machine body can sense the change of shaft current generated by a large shaft and feed back the change to the detection instrument through the hollow annular mutual inductor, the change value of the shaft current is displayed on the detection instrument, and when the change value of the shaft current exceeds a certain set limit value, the motor machine body gives an alarm or the unit stops operating.

Drawings

FIG. 1 is a schematic view of the working principle of the assembly of the present invention;

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

FIG. 3 is a schematic diagram of a wiring structure according to the present invention.

In the figure: 1. a motor body; 2. a fixing ring; 3. detecting a body; 4. clamping the lug; 5. a bolt; 6. a gasket; 7. a connecting plate; 8. a double-ended screw; 9. an output port; 10. and (6) detecting the instrument.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a shaft current detection device for a generator comprises a motor body 1, a fixing ring 2, a detection body 3, clamping lugs 4, bolts 5, a gasket 6, a connecting plate 7, a double-headed screw 8, an output port 9 and a detection instrument 10, wherein the fixing ring 2 is connected to the outer wall of the motor body 1, the detection body 3 is arranged on the outer side of the fixing ring 2, the fixing ring 2 is distributed along the center of a circle of the motor body 1, the fixing ring 2 and the motor body 1 are mutually attached, the whole detection body 3 is fixed in the motor body 1 through the fixing ring 2, so that the detection body 3 can effectively detect the motor body 1, and the detection body 3 is a hollow annular mutual inductor;

the clamping lugs 4 are arranged around the outer wall of the detection machine body 3, a bolt 5 penetrates through the circle center of one end of each clamping lug 4, the clamping lugs 4 are uniformly distributed around the outer wall of the detection machine body 3, a welding integrated structure is formed between the detection machine body 3 and the clamping lugs 4, the clamping lugs 4 serve as a fixed connection structure of the detection machine body 3 and are connected with the detection machine body 3 in a welding mode, the connection strength is high, the situation that the clamping lugs are broken and fall off is not prone to occurring in use, and the clamping lugs 4 are uniformly distributed around the outer wall of the detection machine body 3, so that the stability of the whole structure can be guaranteed in fixing;

the gasket 6 is attached to the joint of the bolt 5 and the clamping lug 4, the bottom of the bolt 5 is in threaded connection with the connecting plate 7, the connecting plate 7 forms a rotating structure through the bolt 5 and the clamping lug 4, the clamping lugs 4 are distributed in a triangular shape, when a user needs to fix the detection machine body 3 in the motor machine body 1, the stud 8 can be inserted into a preset place, the stud 8 is fixedly connected with the motor machine body 1 through the bolt 5, and meanwhile, the whole connecting plate 7 is in a rotating structure, so that the fixed installation of the detection machine bodies 3 of different models can be effectively met;

the other end of the connecting plate 7 penetrates through a double-threaded screw 8, the detection machine body 3 is electrically connected with an output port 9 through a wire, the output port 9 is electrically connected with a detection instrument 10 through a wire, the detection instrument 10 and the detection machine body 3 form an electrical parallel connection through the output port 9, when the motor machine body 1 rotates and operates, a hollow annular mutual inductor in the detection machine body 3 can sense the change of shaft current generated by a large shaft and feed back the change to the detection instrument 10 through the hollow annular mutual inductor, the detection instrument 10 displays the change value of the shaft current, and when the change value of the shaft current exceeds a certain set limit value, the motor machine body 1 gives an alarm or stops operating.

The working principle is as follows: to this kind of axle current detection device for generator at first when will detect organism 3 and fix in motor organism 1, can insert stud 8 and preset the place, carry out fixed connection to stud 8 and motor organism 1 through bolt 5, whole connecting plate 7 is the rotary knot simultaneously, can effectively satisfy the fixed mounting of the detection organism 3 of different models, when motor organism 1 rotatory operation this moment, the hollow ring transformer in the detection organism 3 can respond to the change of the axle current that the main shaft produced, feed back to instrumentation 10 through hollow ring transformer, show the change value of axle current at instrumentation 10 afterwards, when the change value of axle current surpassed certain limit value that sets for at last, motor organism 1 reports to the police or the unit stops to operate, just so accomplish the use of the axle current detection device for whole generator.

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.