CN217687548U - Bearing temperature measuring element - Google Patents

Abstract

The utility model discloses a temperature measuring device, in particular to a bearing temperature measuring element, which comprises a first protective tube, wherein one end of the first protective tube is closed in a closed arrangement, and the other end of the first protective tube is a first opening end in an opening arrangement; the two ends of the second protection pipe are respectively provided with a second opening end and a third opening end which are arranged in an opening manner; a third protection pipe, which is inserted into the first protection pipe through the second protection pipe; two ends of the first opening are respectively a second closed end arranged in a closed manner and a fourth opening end arranged in an opening manner; and the thermocouple wire is arranged in the third protective tube. The first opening end is connected with the second opening end through a connecting assembly, and a sealing assembly is arranged in the connecting assembly. First protective tube and second protection tube cover are established outside the third protective tube and are connected through coupling assembling, can improve the leakproofness performance of first protective tube and second protection tube junction through the seal assembly who sets up in coupling assembling, reduce the external influence to third protection tube galvanic couple silk.

Description

Bearing temperature measuring element

Technical Field

The utility model belongs to the technical field of the temperature measuring equipment, especially, relate to a bearing temperature element.

Background

The sliding bearing is an important part of the motor, and under the condition of fluid lubrication, two friction surfaces are separated by a fluid dynamic pressure oil film and are not in direct contact, so that the function of supporting the stable and reliable operation of a rotating shaft system is realized.

The Chinese patent with the application number of 201611191229.3 discloses a temperature measuring element for a bearing, which comprises a probe, a probe and a joint, wherein the probe is installed at one end of the probe, the joint is fixedly connected with the probe, the probe penetrates through a hole of the joint to extend out of the joint, the temperature measuring element further comprises an elastic expansion piece and a first insulating sleeve, the elastic expansion piece is fixed between the probe and the probe, the first insulating sleeve is sleeved at the joint of the joint and the probe, a first insulating sleeve is arranged between the elastic expansion piece and the probe at an interval, a first sealing gasket is arranged between the joint and the bearing, and the probe is insulated from the joint.

In the bearing temperature measuring element, the insertion depth of the temperature measuring element can be adjusted while insulation is guaranteed, and the probe can more truly measure the actual temperature of the bearing bush. However, the sealing performance of the temperature measuring element is insufficient, and the measurement precision is easily reduced due to the influence of external substances.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem who exists to the aforesaid, provide a bearing temperature element with good leakproofness ability.

The purpose of the utility model is realized like this: a bearing temperature sensing element comprising:

one end of the first protection pipe is closed in a closed arrangement, and the other end of the first protection pipe is a first opening end in an open arrangement;

the two ends of the second protection pipe are respectively provided with a second opening end and a third opening end which are provided with openings;

a third protection pipe, which is inserted into the first protection pipe through the second protection pipe; two ends of the first opening are respectively a second closed end arranged in a closed manner and a fourth opening end arranged in an opening manner;

a thermocouple wire disposed in the third protective tube;

wherein, connect through coupling assembling between first open end and the second open end, be equipped with seal assembly in the coupling assembling.

In the technical scheme, one end of the third protection tube is a closed end, the other end of the third protection tube is an open end, the galvanic couple wire enters and exits from the closed end, and the wiring cable and the connector lug at the tail of the galvanic couple wire extend outwards from the open end. First protective tube and second protection tube cover are established outside the third protective tube and are connected through coupling assembling, can improve the leakproofness performance of first protective tube and second protection tube junction through the seal assembly who sets up in coupling assembling, reduce the external influence to third protection tube galvanic couple silk.

Among the above-mentioned technical scheme, further, coupling assembling includes:

the first connecting port is sleeved outside the first opening end;

the second connecting port is sleeved outside the second opening end and can wrap the first connecting port;

wherein, be provided with the interval between first connector and the third protection tube and constitute first chamber of holding, be provided with the interval between second connector and the third protection tube and constitute the second and hold the chamber, first chamber of holding holds the intracavity with the second and is equipped with the spring.

In this technical scheme, the first interface of second connector cladding can increase the sealing performance between first interface and the second connector. Meanwhile, the spring is arranged between the first connecting port and the second connecting port, so that the distance between the first connecting port and the second connecting port can be adjusted, and the measuring position can be conveniently adjusted.

In the above technical solution, further, the seal assembly includes:

the first limiting piece is arranged at the bottom of the first accommodating cavity;

the second limiting piece is arranged at the bottom of the second accommodating cavity;

the sealing element is arranged between the first limiting piece and the bottom of the first accommodating cavity;

wherein, one end of the spring is propped against the first limit ring, and the other end is propped against the second limit piece.

Among this technical scheme, the sealing member is the rubber material, has good sealing performance, can seal the gap between first protection tube and the third protection tube, simultaneously because the first spacing ring of spring one end conflict makes first spacing ring can extrude the sealing member to further improve sealing performance.

Among the above-mentioned technical scheme, further, the first bottom that holds the chamber is equipped with first inclined plane and second inclined plane, be equipped with on the sealing member with first inclined plane complex third inclined plane and with second inclined plane complex fourth inclined plane.

Among this technical scheme, two inclined planes can improve the complexity that sealing member and first cavity conflict contact surface, also provide stable support for the sealing member simultaneously, guarantee the laminating of sealing member and first cavity bottom to guarantee sealing performance.

In the above technical solution, further, the inner wall of the first connecting port is attached to the outer wall of the second locating part.

In this technical scheme, can constitute the duplicate protection effect with the structure of first interface cladding first interface, further improve sealing performance.

Among the above-mentioned technical scheme, further, the fourth opening end is equipped with the sealing, is equipped with the spacing ring of contradicting with third protection tube end portion on the sealing.

Among this technical scheme, can seal fourth opening end department, prevent that external impurity from getting into in the second protective tube from third opening.

The beneficial effects of the utility model are that:

1. first protection tube and second protection tube pass through coupling assembling to be connected, are provided with seal assembly simultaneously in coupling assembling, can guarantee sealing performance.

2. The sealing member is embedded into the first cavity through the two inclined planes, so that the sealing performance can be enhanced, meanwhile, the sealing member is better supported, and the stable structure of the sealing assembly is ensured.

3. The sealing element is extruded through the spring, so that the sealing element is further attached to the bottom of the first cavity, and the sealing performance is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

wherein the reference numerals are: 100. a first protective tube; 110. a first closed end; 120. a first open end; 130. A first limit piece; 140. a seal member; 141. a third inclined plane; 142. a fourth slope; 150. a spring; 160. A first accommodating chamber; 161. a first inclined plane; 162. a second inclined surface; 200. a second protection pipe; 210. a second open end; 220. a third open end; 230. a second accommodating chamber; 240. a second limiting member; 300. a sealing part; 310. a shielded wire; 320. a wiring terminal; 330. a limiting ring; 400. a third protection tube; 410. a second closed end; 420. a fourth opening end; 430. and (4) a galvanic couple wire.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

In the description of the present invention, it is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. For convenience of description, the dimensions of the various features shown in the drawings are not necessarily drawn to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Example 1:

referring to fig. 1 and 2, the present embodiment provides a bearing temperature measuring element, including:

a first protection tube 100, one end of which is closed and the other end of which is a first open end 120;

a second protection tube 200 having a second opening end 210 and a third opening end 220 at two ends thereof;

a third protection pipe 400 into which the second protection pipe 200 is inserted into the first protection pipe 100; and the two ends are respectively a second closed end 410 arranged in a closed manner and a fourth opening end 420 arranged in an opening manner;

a thermocouple wire 430 disposed inside the third protection tube 400;

the first open end 120 and the second open end 210 are connected by a connecting assembly, and a sealing assembly is arranged in the connecting assembly.

One end of the third protection tube 400 is a closed end, and the other end is an open end, the thermocouple wire 430 is inserted into the closed end, and the connection cable and the connector lug at the tail of the thermocouple wire extend outwards from the open end. First protective tube 100 and second protective tube 200 cover are established outside third protective tube 400 and are connected through coupling assembling, can improve the leakproofness performance of first protective tube 100 and second protective tube 200 junction through the seal assembly who sets up in coupling assembling, reduce external influence to third protective tube 400 galvanic couple silk 430.

Example 2:

in addition to the technical features of the above embodiments, the present embodiment further includes the following technical features.

Referring to fig. 2, the connecting assembly includes:

a first connection port sleeved outside the first opening end 120;

a second connection port, which is sleeved outside the second opening end 210 and can cover the first connection port;

a space is arranged between the first connecting port and the third protecting pipe 400 to form a first accommodating cavity 160, a space is arranged between the second connecting port and the third protecting pipe 400 to form a second accommodating cavity 230, and a spring 150 is arranged in the first accommodating cavity 160 and the second accommodating cavity 230.

The second connecting port covers the first connecting port, so that the sealing performance between the first connecting port and the second connecting port can be improved. Meanwhile, the spring 150 is arranged between the first connecting port and the second connecting port, so that the distance between the first connecting port and the second connecting port can be adjusted, and the adjustment of the measuring position is facilitated.

Example 3:

the present embodiment provides a bearing temperature measuring element, which includes the following technical features in addition to the technical features of the above embodiments.

Referring to fig. 2, 3, the sealing assembly includes:

a first stopper 130 disposed at the bottom of the first accommodating chamber 160;

a second stopper 240 disposed at the bottom of the second accommodating chamber 230;

a sealing member 140 interposed between the first retaining member 130 and the bottom of the first receiving chamber 160;

one end of the spring 150 abuts against the first position-limiting ring 330, and the other end abuts against the second position-limiting member 240.

The sealing member 140 is made of rubber, has good sealing performance, and can seal a gap between the first protection tube 100 and the third protection tube 400, and meanwhile, because one end of the spring 150 abuts against the first limiting ring 330, the first limiting ring 330 can extrude the sealing member 140, so that the sealing performance is further improved.

In this embodiment, further, the bottom of the first accommodating chamber 160 is provided with a first inclined surface 161 and a second inclined surface 162, and the sealing member 140 is provided with a third inclined surface 141 matching with the first inclined surface 161 and a fourth inclined surface 142 matching with the second inclined surface 162.

The two inclined planes can improve the complexity of the contact surface of the sealing element 140 abutting against the first cavity, and simultaneously provide stable support for the sealing element 140, so that the sealing element 140 is attached to the bottom of the first cavity, and the sealing performance is ensured.

In this embodiment, further, an inner wall of the first connection port is attached to an outer wall of the second limiting member 240. Can constitute the duplicate protection effect with the structure of first interface cladding first interface, further improve sealing performance.

Example 4:

the present embodiment provides a bearing temperature measuring element, which includes the following technical features in addition to the technical features of the above embodiments.

Referring to fig. 1 and 2, the fourth opening end 420 is provided with a sealing portion 300, and the sealing portion 300 is provided with a limiting ring 330 abutting against an end of the third protection pipe 400. The fourth opening end 420 can be sealed to prevent the foreign substances from entering the second protection pipe 200 from the third opening.

A shielding wire 310 is disposed at an opening of the sealing portion 300, and the shielding wire 310 is made of stainless steel. The shielded wire 310 encloses a cable connected to the thermocouple wire 430, and a connection terminal 320 is provided at the end of the shielded wire 310.

While the embodiments of the present application have been described in connection with the drawings, the embodiments and features of the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present application and the claims.

Claims (6)

1. A bearing temperature sensing element, comprising:

a first protection tube (100), one end of which is a first closed end (110) arranged in a closed way, and the other end of which is a first open end (120) arranged in an open way;

a second protection pipe (200), wherein the two ends of the second protection pipe are respectively provided with a second opening end (210) and a third opening end (220);

the third protection pipe (400) penetrates through the second protection pipe (200) and is inserted into the first protection pipe (100), and the two ends of the third protection pipe are respectively a second closed end (410) arranged in a closed mode and a fourth opening end (420) arranged in an opened mode;

a galvanic wire (430) disposed within the third protective tube (400);

the first opening end (120) is connected with the second opening end (210) through a connecting assembly, and a sealing assembly is arranged in the connecting assembly.

2. The bearing temperature sensing element of claim 1, wherein the connection assembly comprises:

a first connector which is sleeved outside the first opening end (120);

the second connecting port is sleeved outside the second opening end (210) and can cover the first connecting port;

wherein, be provided with the interval between first interface and third protection pipe (400) and constitute first chamber (160) that holds, be provided with the interval between second interface and third protection pipe (400) and constitute second and hold chamber (230), be equipped with spring (150) in first chamber (160) and the second chamber (230) that holds.

3. The bearing temperature sensing element of claim 2, wherein the seal assembly comprises:

the first limiting piece (130) is arranged at the bottom of the first accommodating cavity (160);

a second stopper (240) disposed at the bottom of the second accommodating chamber (230);

a sealing member (140) interposed between the first retaining member (130) and the bottom of the first accommodating chamber (160);

wherein, one end of the spring (150) props against the first limit ring (330), and the other end props against the second limit piece (240).

4. The bearing temperature measuring element of claim 3, wherein the bottom of the first accommodating cavity (160) is provided with a first inclined surface (161) and a second inclined surface (162), and the sealing member (140) is provided with a third inclined surface (141) matched with the first inclined surface (161) and a fourth inclined surface (142) matched with the second inclined surface (162).

5. The bearing temperature measuring element of claim 3, wherein the inner wall of the first connecting port is attached to the outer wall of the second retaining member (240).

6. The bearing temperature measuring element according to claim 1, wherein the fourth opening end (420) is provided with a sealing part (300), and the sealing part (300) is provided with a limiting ring (330) which is abutted against the end part of the third protection pipe (400).

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