Conductive slip ring and rotary temperature measuring device

Abstract

The invention discloses a conductive slip ring, and relates to the technical field of rotary temperature measurement, the conductive slip ring comprises a slip ring main body and a slip ring fixing seat, the slip ring main body is fixed on the slip ring fixing seat, the slip ring main body can sleeve a rotary main shaft, and the slip ring fixing seat can be fixed on a base; the slip ring main body comprises a plurality of groups of slip rings which are sequentially arranged along the axial direction of the rotating main shaft, any group of slip ring comprises a rotor ring and a stator ring, the rotor ring is fixed on a rotor fixing seat, the rotor fixing seat is connected with the rotating main shaft through a connecting piece, and the rotating main shaft can drive the rotor ring to rotate; the stator ring is fixed on a stator fixing seat, and the stator fixing seat is fixedly connected with the slip ring fixing seat; and the rotor rings are in surface contact with the corresponding stator rings. The invention further discloses a rotary temperature measuring device which comprises the conductive slip ring. The contact area of the stator and the rotor is increased, and the contact resistance is reduced.

Description

Technical Field

[0001] This invention relates to the field of rotary temperature measurement technology, and in particular to a conductive slip ring and a rotary temperature measurement device. Background Technology

[0002] Currently, standard products such as conductive slip rings are often used in the process of rotating temperature measurement. Specifically, when measuring the temperature of a rotating workpiece being heated, the thermocouple is fixed in close contact with the workpiece and connected to the conductive slip ring through a copper compensating wire to achieve the rotation function. However, existing conductive slip rings mostly use a clustered brush type multi-point contact structure made of precious metals. The number of conducting contacts for each signal is limited, the contact area is small, the resistance is unstable, and the resistance of each channel of the slip ring varies greatly.

[0003] Therefore, a conductive slip ring and a rotary temperature measuring device are provided to solve the above-mentioned problems existing in the prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a conductive slip ring and a rotating temperature measuring device to solve the problems existing in the prior art, thereby increasing the contact area between the stator and the rotor and reducing the contact resistance.

[0005] To achieve the above objectives, the present invention provides the following solution: This invention provides a conductive slip ring, comprising a slip ring body and a slip ring fixing seat. The slip ring body is fixed to the slip ring fixing seat and can be sleeved on a rotating main shaft. The slip ring fixing seat can be fixed to a base. The slip ring body includes multiple sets of slip rings arranged sequentially along the axial direction of the rotating main shaft. Each set of slip rings includes a rotor ring and a stator ring. The rotor ring is fixed to a rotor fixing seat, and the rotor fixing seat is connected to the rotating main shaft via a connector. The rotating main shaft can drive the rotor ring to rotate. The stator ring is fixed to a stator fixing seat, and the stator fixing seat is fixedly connected to the slip ring fixing seat. The rotor ring and the corresponding stator ring are in surface contact.

[0006] Preferably, both the rotor ring and the stator ring have threaded holes on their sides for crimping compensation wires, which are used to connect to thermocouples.

[0007] Preferably, both the rotor ring and the stator ring are copper rings.

[0008] Preferably, the rotor ring has a groove on the contact surface for contacting the stator ring, and the stator ring has a lubrication structure on the contact surface for contacting the rotor ring.

[0009] Preferably, the channel is an arc-shaped channel, and the lubrication structure is a graphite lubricant block.

[0010] Preferably, the connecting member includes a lever and a lever fixing plate. The lever fixing plate can be fixedly connected to the rotating spindle, and the lever fixing plate is connected to the rotor fixing seat through the lever. The rotating spindle can drive the lever fixing plate to rotate, and the lever fixing plate drives the rotor fixing seat and the rotor ring to rotate through the lever.

[0011] Preferably, the outer edge of the rotor mounting base has a plurality of extended slots evenly distributed along the circumference, and the lever can be inserted into the corresponding extended slot.

[0012] Preferably, the rotor ring is fixed to the rotor mounting base by bolts.

[0013] Preferably, the stator ring is fixed to the stator fixing seat by bolts, and the stator fixing seat is fixed to the slip ring fixing seat by bolts.

[0014] The present invention also provides a rotary temperature measuring device, including the conductive slip ring as described above.

[0015] The present invention achieves the following technical effects compared to the prior art: In this invention, the conductive slip ring includes a slip ring body and a slip ring fixing seat. The slip ring body is fixed to the slip ring fixing seat and can be sleeved on a rotating main shaft. The slip ring fixing seat can be fixed to a base. The slip ring body includes multiple sets of slip rings arranged sequentially along the axial direction of the rotating main shaft. Each set of slip rings includes a rotor ring and a stator ring. The rotor ring is fixed to a rotor fixing seat, and the rotor fixing seat is connected to the rotating main shaft through a connector. The rotating main shaft can drive the rotor ring to rotate. The stator ring is fixed to a stator fixing seat, and the stator fixing seat is fixedly connected to the slip ring fixing seat. The rotor ring and the corresponding stator ring are in surface contact.

[0016] In this invention, a stator ring is used as the stator and a rotor ring is used as the rotor. The rotor ring and the corresponding stator ring are in surface contact. Compared with the traditional cluster brush type multi-point contact structure, this greatly increases the contact area and reduces the contact resistance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the conductive slip ring in an embodiment of the present invention; Figure 2 This is a schematic diagram of the rotor copper ring structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the stator copper ring in an embodiment of the present invention; In the figure: 1-rotating spindle; 2-fixed clamp; 3-lever fixing plate; 4-rotor ring; 5-stator fixing seat; 6-stator ring; 7-rotor fixing seat; 8-lever; 9-slip ring fixing seat; 10-base; 11-arc-shaped channel; 12-graphite lubricant block; 13-screw fixing hole. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The purpose of this invention is to provide a conductive slip ring and a rotating temperature measuring device to solve the problems existing in the prior art, thereby increasing the contact area between the stator and the rotor and reducing the contact resistance.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1 like Figures 1-3 As shown, this embodiment provides a conductive slip ring, including a slip ring body and a slip ring fixing seat 9. The slip ring body is fixed on the slip ring fixing seat 9, and the slip ring body can be sleeved on the rotating spindle 1. The slip ring fixing seat 9 can be fixed on the base 10. The slip ring body includes multiple sets of slip rings arranged sequentially along the axial direction of the rotating spindle 1. Specifically, during operation, the rotating spindle 1 is vertically arranged, and the multiple sets of slip rings are stacked sequentially from bottom to top. In this embodiment, each set of slip rings includes a rotor ring 4 and a stator ring 6. The rotor ring 4 is fixed on a rotor mounting base 7, and the rotor mounting base 7 is connected to the rotating main shaft 1 through a connector. The rotating main shaft 1 can drive the rotor ring 4 to rotate. The stator ring 6 is fixed on a stator mounting base 5, and the stator mounting base 5 is fixedly connected to the slip ring mounting base 9. The rotor ring 4 and the corresponding stator ring 6 are in surface contact.

[0023] In this embodiment, a stator ring 6 is used as the stator and a rotor ring 4 is used as the rotor. The rotor ring 4 and the corresponding stator ring 6 are in surface contact. Compared with the traditional cluster brush type multi-point contact structure, the contact area is greatly improved and the contact resistance is reduced.

[0024] In this embodiment, both the rotor ring 4 and the stator ring 6 have threaded holes on their sides for crimping compensation wires. The compensation wires are used to connect to thermocouples, and the compensation wires are typically made of copper.

[0025] In this embodiment, both the rotor ring 4 and the stator ring 6 are copper rings, made of the same material as the compensating wires. Compared to standard products of traditional conductive slip rings, this avoids introducing other metal conductors into the circuit of the temperature measuring thermocouple, which would cause voltage signal distortion. Moreover, in this embodiment, the copper rings have the same specifications and dimensions, and they are made in a surface contact manner, which ensures the consistency of the line resistance of each compensating wire. The resistance of the entire compensation line does not change much, which can achieve stable voltage signal transmission and obtain accurate temperature measurement signals.

[0026] In this embodiment, the contact surface of the rotor ring 4 for contacting the stator ring 6 is provided with a groove, preferably an arc-shaped groove 11, which can achieve scraping of the surface of the stator ring 6; in order to ensure a long service life, the depth of the arc-shaped groove 11 is preferably 3-5mm; in order to make the rotor ring 4 have a large self-weight, its thickness can be set to 20mm to ensure overall rigidity and prevent deformation, and due to the heavy self-weight of the rotor ring 4, it can ensure frictional contact with the stator ring 6.

[0027] The stator ring 6 has a lubrication structure on the contact surface for contacting the rotor ring 4. The lubrication structure is preferably a graphite lubricating block 12. When the rotor ring 4 and the stator ring 6 come into contact and rub against each other, the graphite lubricating block 12 can play a lubricating role.

[0028] In this embodiment, considering the softness and easy wear of copper, a rotor ring 4 with an arc-shaped channel 11 and a stator ring 6 with a graphite lubricant block 12 are used. During rotation, the two continuously rub against each other, automatically obtaining a stacked structure with a large area of ​​conductive contact surface. This can ensure the stable transmission of the extremely low signal value of the type B precious metal thermocouple and prevent temperature measurement data from jumping.

[0029] In this embodiment, the connecting component mainly includes a lever 8 and a lever fixing plate 3. The lever fixing plate 3 can be fixedly connected to the rotating main shaft 1 through a fixing clamp 2, and the lever fixing plate 3 is connected to the rotor fixing seat 7 through the lever 8. The rotating main shaft 1 can drive the lever fixing plate 3 to rotate, and the lever fixing plate 3 drives the rotor fixing seat 7 and the rotor ring 4 to rotate through the lever 8.

[0030] In this embodiment, the outer edge of the rotor fixing seat 7 is evenly distributed with multiple extension slots along the circumference, and the lever 8 can be inserted into the corresponding extension slot. As a preferred embodiment, the outer edge of the rotor fixing seat 7 is evenly distributed with 4 extension slots along the circumference. The rotor fixing seat 7 and the rotor ring 4 are as a whole and are only subjected to gravity in the vertical direction. At the same time, the four levers 8 are inserted into the four extension slots of the rotor fixing seat 7, which can ensure that the rotor fixing seat 7 and the rotor ring 4 have only one degree of freedom to rotate around the axis of the rotating main shaft 1.

[0031] In this embodiment, the rotor ring 4 is provided with screw fixing holes 13, which can be fixed to the rotor fixing seat 7 by bolts.

[0032] In this embodiment, the stator ring 6 is provided with screw fixing holes 13, which can be fixed to the stator fixing seat 5 by bolts. The stator fixing seat 5 and the slip ring fixing seat 9 are fixed by bolts and are fixed as a whole on the base 10.

[0033] This embodiment also provides a rotary temperature measuring device, including the conductive slip ring described above.

[0034] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A conductive slip ring, characterized in that: The system includes a slip ring body and a slip ring fixing seat. The slip ring body is fixed to the slip ring fixing seat and can be sleeved on a rotating main shaft. The slip ring fixing seat can be fixed to a base. The slip ring body includes multiple sets of slip rings arranged sequentially along the axial direction of the rotating main shaft. Each set of slip rings includes a rotor ring and a stator ring. The rotor ring is fixed to a rotor fixing seat, and the rotor fixing seat is connected to the rotating main shaft through a connector. The rotating main shaft can drive the rotor ring to rotate. The stator ring is fixed to a stator fixing seat, and the stator fixing seat is fixedly connected to the slip ring fixing seat. The rotor ring and the corresponding stator ring are in surface contact.

2. The conductive slip ring according to claim 1, characterized in that: Both the rotor ring and the stator ring have threaded holes on their sides for crimping compensation wires, which are used to connect to thermocouples.

3. The conductive slip ring according to claim 2, characterized in that: Both the rotor ring and the stator ring are copper rings.

4. The conductive slip ring according to claim 1, characterized in that: The rotor ring has grooves on its contact surface for contacting the stator ring, and the stator ring has a lubrication structure on its contact surface for contacting the rotor ring.

5. The conductive slip ring according to claim 4, characterized in that: The channel is an arc-shaped channel, and the lubrication structure is a graphite lubricant block.

6. The conductive slip ring according to claim 1, characterized in that: The connecting component includes a lever and a lever fixing plate. The lever fixing plate can be fixedly connected to the rotating spindle, and the lever fixing plate is connected to the rotor fixing seat through the lever. The rotating spindle can drive the lever fixing plate to rotate, and the lever fixing plate drives the rotor fixing seat and the rotor ring to rotate through the lever.

7. The conductive slip ring according to claim 6, characterized in that: The outer edge of the rotor mounting base has multiple extended slots evenly distributed circumferentially, and the lever can be inserted into the corresponding extended slot.

8. The conductive slip ring according to claim 1, characterized in that: The rotor ring is fixed to the rotor mounting base by bolts.

9. The conductive slip ring according to claim 1, characterized in that: The stator ring is fixed to the stator fixing seat by bolts, and the stator fixing seat is fixed to the slip ring fixing seat by bolts.

10. A rotary temperature measuring device, characterized in that: Includes the conductive slip ring as described in any one of claims 1-9.

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