阅读说明：本技术 一种阻旋开关的传感器 (Sensor of rotation-resistant switch ) 是由 李健锋 庞启国 于 2021-02-20 设计创作，主要内容包括：本发明公开了一种阻旋开关的传感器,具体涉及传感器技术领域,包括叶片组件和传感器部分,所述叶片组件上方固定连接设置有主轴,所述主轴上方贯穿设置在所述传感器部分内部,所述传感器部分包括阻旋连接套,所述阻旋连接套内设置有隔爆套,所述隔爆套设置在所述主轴和阻旋连接套中间,所述阻旋连接套的上方设置有小轴承,所述小轴承上方设置有轴用挡圈,所述阻旋连接套的下方设置有大轴承,所述大轴承的下方设置有孔用挡圈,所述阻旋连接套的下方固定设置有密封盖,所述密封盖的上方设置有油封,本发明结构简单,易于零部件的依次装配,便于安装定位,可以解决隔爆产品不同心造成的仪表故障。(The invention discloses a sensor of a rotation-resistant switch, in particular to the technical field of sensors, which comprises a blade component and a sensor part, a main shaft is fixedly connected above the blade assembly, the upper part of the main shaft is arranged inside the sensor part in a penetrating way, the sensor part comprises a rotation-resistant connecting sleeve, an explosion-proof sleeve is arranged in the rotation-resistant connecting sleeve and is arranged between the main shaft and the rotation-resistant connecting sleeve, a small bearing is arranged above the rotation-resisting connecting sleeve, a retaining ring for a shaft is arranged above the small bearing, a large bearing is arranged below the rotation-resisting connecting sleeve, a check ring for holes is arranged below the large bearing, the rotation-resistant connecting sleeve is characterized in that a sealing cover is fixedly arranged below the rotation-resistant connecting sleeve, and an oil seal is arranged above the sealing cover.)

1. A sensor of a rotation-resistant switch, comprising a blade assembly (1) and a sensor portion, characterized in that: blade subassembly (1) top fixed connection is provided with main shaft (2), main shaft (2) top is run through the setting and is in sensor part is inside, sensor part is including hindering and revolve adapter sleeve (5), hinder and be provided with flame proof cover (8) in revolving adapter sleeve (5), flame proof cover (8) set up in the middle of main shaft (2) and hindering and revolve adapter sleeve (5), the top of hindering and revolve adapter sleeve (5) is provided with little bearing (9), little bearing (9) top is provided with for the shaft retaining ring (10), the below of hindering and revolving adapter sleeve (5) is provided with big bearing (7), the below of big bearing (7) is provided with hole retaining ring (6), the fixed sealed lid (3) that is provided with in below of hindering and revolving adapter sleeve (5), the top of sealed lid (3) is provided with oil blanket (4).

2. A rotation-inhibiting switch sensor as claimed in claim 1, wherein: hinder and revolve adapter sleeve (5) and be provided with first hole step (51), second hole step (52) and third hole step (53), first hole step (51) are used for fixed mounting small bearing (9), second hole step (52) are used for big bearing of fixed mounting (7), third hole step (53) are used for fixed mounting oil blanket (4).

3. A rotation-inhibiting switch sensor as claimed in claim 1, wherein: the sealing cover (4) is in threaded connection with the rotation-resistant connecting sleeve (5), an external thread is arranged at the upper end of the sealing cover (4), an internal thread is arranged at the lower end of the rotation-resistant connecting sleeve, the rotation-resistant connecting sleeve (5) and the sealing cover (4) are both subjected to thread machining, and the thread machining is left-handed thread machining.

4. A rotation-inhibiting switch sensor as claimed in claim 1, wherein: the rotation-resisting connecting sleeve (5) is made of stainless steel.

5. A rotation-inhibiting switch sensor as claimed in claim 1, wherein: the main shaft (2) is in a stepped structure.

Technical Field

The invention relates to the technical field of sensors, in particular to a sensor of a rotation-resistant switch.

Background

The rotation resistance switch utilizes a synchronous motor to drive the rotating shaft and the blades to rotate through the reduction gear, when a detected solid material contacts or covers the blades, the blades are blocked from rotating, the resistance is transmitted to the detection device inside the instrument through the rotating shaft, the detection device outputs a switch signal outwards, and the power supply of the motor is cut off to stop the rotation of the blades. After the material retreats, the blade resistance disappears, and detection device relies on the pulling force of spring to get back to original state, and the blade resumes rotatory. The rotation-resisting switch can measure materials with a wider specific gravity range by adjusting the tension of the spring. When the specific gravity of the material is larger, the spring force is adjusted to be larger, otherwise, the spring force is adjusted to be smaller.

The sensor of the rotation-resistant switch is a key part for realizing material measurement, the connecting thread is adopted on the shell in the prior art, the bearing, the oil seal, the explosion-proof sleeve and the like need to be assembled on the shell, the stainless steel explosion-proof sleeve is required to be installed on the aluminum alloy shell in a tight fit manner, and the instrument fault is easily caused due to the fact that the explosion-proof sleeve is pressed to be easily eccentric with the bearing, the oil seal and the like. Therefore, the connection thread is separated from the shell in the process, and the bearing, the oil seal, the explosion-proof sleeve and the like are assembled in the separated rotation-resistant connection sleeve, so that the problem of non-concentricity is solved.

Disclosure of Invention

In order to solve the above problems, embodiments of the present invention provide a sensor for a rotation-resistant switch, which can solve the problems that a process connection thread is separated from a housing, and a bearing, an oil seal, an explosion-proof sleeve, and the like are assembled in the separated rotation-resistant connection sleeve and are not concentric.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hinder sensor of rotary switch, includes blade subassembly and sensor part, blade subassembly top fixed connection is provided with the main shaft, the main shaft top is run through the setting and is in inside the sensor part, the sensor part is including hindering the rotary joint cover, it is provided with the flame proof cover in the rotary joint cover to hinder, the flame proof cover sets up in the middle of the main shaft with hindering the rotary joint cover, the top of hindering the rotary joint cover is provided with little bearing, little bearing top is provided with the retaining ring for the shaft, the below of hindering the rotary joint cover is provided with big bearing, the below of big bearing is provided with the retaining ring for the hole, the fixed sealed lid that is provided with in below of hindering the rotary joint cover, the top of sealed lid.

Furthermore, the rotation-resisting connecting sleeve is provided with a first inner hole step, a second inner hole step and a third inner hole step, the first inner hole step is used for fixedly mounting the small bearing, the second inner hole step is used for fixedly mounting the large bearing, and the third inner hole step is used for fixedly mounting the oil seal.

Further, the sealing cover is in threaded connection with the rotation-resisting connecting sleeve, an external thread is arranged at the upper end of the sealing cover, an internal thread is arranged at the lower end of the rotation-resisting connecting sleeve, the rotation-resisting connecting sleeve and the sealing cover are both processed by threads, and the threads are processed by left-handed threads.

Furthermore, the rotation-resisting connecting sleeve is made of stainless steel.

Further, the main shaft is of a stepped structure.

Compared with the prior art, the invention has the technical effects and advantages that:

according to the invention, the process connecting thread is transferred from the shell to the rotation-resisting connecting sleeve, and the sensor parts such as the bearing, the explosion-proof sleeve and the oil seal are arranged on the rotation-resisting connecting sleeve, so that the improvement and the type extension of the product are extremely convenient, the product quality is more stable, the process connecting and processing size can be changed in a variety way, and the user requirements are met more.

The rotation-resisting connecting sleeve is positioned by steps, is respectively provided with the small bearing, the explosion-proof sleeve and the large bearing, is positioned by the retainer ring through the hole, is provided with the oil seal and the sealing cover, is assembled without excessive matching, is relatively simple to assemble, is designed in a stepped structure, and is easier to assemble parts in sequence.

The explosion-proof sleeve is arranged between the two bearings in a clearance fit mode, the mode that the explosion-proof sleeve is pressed into the aluminum alloy shell in the prior art is changed, the concentricity is better, and the contact between the main shaft and the explosion-proof sleeve is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the rotation-resisting connecting sleeve.

The reference signs are: 1. the anti-explosion device comprises a blade assembly, 2 parts of a main shaft, 3 parts of a sealing cover, 4 parts of an oil seal, 5 parts of a rotation-resisting connecting sleeve, 51 parts of a first inner hole step, 52 parts of a second inner hole step, 53 parts of a third inner hole step, 6 parts of a hole retainer ring, 7 parts of a large bearing, 8 parts of an anti-explosion sleeve, 9 parts of a small bearing and 10 parts of a shaft retainer ring.

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.

The sensor of the rotation-resistant switch comprises a blade assembly 1 and a sensor part, wherein a main shaft 2 is fixedly connected to the upper side of the blade assembly 1, the upper side of the main shaft 2 penetrates through the sensor part, the sensor part comprises a rotation-resistant connecting sleeve 5, an explosion-proof sleeve 8 is arranged in the rotation-resistant connecting sleeve 5, the explosion-proof sleeve 8 is arranged between the main shaft 2 and the rotation-resistant connecting sleeve 5, a small bearing 9 is arranged above the rotation-resistant connecting sleeve 5, a shaft retainer ring 10 is arranged above the small bearing 9, a large bearing 7 is arranged below the rotation-resistant connecting sleeve 5, a hole retainer ring 6 is arranged below the large bearing 7, a sealing cover 3 is fixedly arranged below the rotation-resistant connecting sleeve 5, and an oil seal 4 is arranged above the sealing cover 3.

In this embodiment, it is provided with first hole step 51, second hole step 52 and third hole step 53 to hinder rotary joint cover 5, first hole step 51 is used for fixed mounting little bearing 9, second hole step 52 is used for fixed mounting big bearing 7, third hole step 53 is used for fixed mounting oil blanket 4, hinders and revolves in the rotary joint cover 5 through the step location, packs into little bearing 9, flame proof cover 8 and big bearing 7 respectively, fixes a position through the retaining ring for the hole at last, packs into oil blanket 4 and sealed lid 3, and the cooperation assembly of nothing is sufficient, and the assembly is simple relatively, and cascaded structural design changes in the assembly in proper order of spare part, and sets up by big bearing and little bearing, has avoided the difficult condition of the same bearing packing into.

In this embodiment, the sealing cover 4 is in threaded connection with the rotation-resistant connecting sleeve 5, an external thread is arranged at the upper end of the sealing cover 4, an internal thread is arranged at the lower end of the rotation-resistant connecting sleeve, the rotation-resistant connecting sleeve 5 and the sealing cover 4 are both processed by threads, the threads are processed in a left-handed mode, and the rotation direction of the threads is opposite to the rotation direction of a motor, so that the sealing cover can be conveniently kept in a screwed state during the operation of the rotation-resistant switch.

In this embodiment, the rotation-resisting connecting sleeve 5 is made of stainless steel.

In this embodiment, the main shaft 2 is of a stepped structure, which facilitates positioning of a large bearing, a small bearing, an explosion-proof sleeve and an oil seal.

During actual use, in the assembly process, the small bearing 9 is installed on the first inner hole step 51 of the rotation blocking connecting sleeve 5, then the explosion blocking sleeve 8 is installed, the large bearing 7 is installed after the explosion blocking sleeve 8 is installed, the large bearing 7 is fixedly installed at the second inner hole step 52, the hole check ring 6 is installed below the large bearing 7, then an oil seal is installed, the sealing cover 3 is installed below the oil seal 6, the sealing cover 3 is in rotation blocking threaded connection with the inner hole of the rotation blocking connecting sleeve 5, the blade assembly is installed on the main shaft, the main shaft penetrates through the rotation blocking connecting sleeve, the sealing cover, the oil seal, the hole check ring, the large bearing, the explosion blocking sleeve and the small bearing sequentially penetrate through the sealing cover, the oil seal, the hole check ring, the large bearing, the explosion blocking sleeve and the small bearing.

According to the invention, the process connecting thread is transferred from the shell to the rotation-resisting connecting sleeve, and the rotation-resisting connecting sleeve is internally connected and distributed with sensor parts such as a large bearing, a small bearing, an explosion-proof sleeve and an oil seal, so that the improvement and the type extension of the product are more convenient, the quality of the product is more stable, the process connecting and processing size can be variously changed, and the user requirements are more met.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.