Oil leakage prevention elastic bearing temperature measurement thermal resistor structure

Abstract

The utility model relates to the technical field of thermal resistors, in particular to an oil leakage prevention elastic bearing temperature measurement thermal resistor structure which comprises a metal protective shell, a sleeve and a pressing screw, the metal protective shell is fixed at one end of the sleeve, a temperature sensing element is installed in the metal protective shell and connected with a wire, and the wire is connected with the sleeve. A movable thread is arranged between the sleeve and the compression screw, the other end of the sleeve is provided with a joint, the movable thread is in threaded connection with the joint, the wire sequentially penetrates through the sleeve, the movable thread and the compression screw to be exposed out of the compression screw, the wire is sleeved with a spring and a ball sealer, one end of the spring abuts against the movable thread, and the other end of the spring abuts against the interior of the joint; a second containing groove is formed in the end, back to the connector, of the movable thread, the ball sealer is located in the second containing groove, a second inner thread is arranged in the second containing groove, a second outer thread is arranged on the pressing screw, and the pressing screw is in threaded connection with the movable thread. According to the thermal resistance structure, the spring is additionally arranged on the wire in the sleeve, so that the thermal resistance probe has anti-seismic performance.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal resistors, in particular to a temperature measuring thermal resistor structure for an oil leakage-proof elastic bearing. Background Art

[0002] The thermal resistor for measuring bearing temperature is a temperature sensor installed on the surface of the bearing. It can monitor temperature changes in real time to avoid accidents caused by excessive bearing temperature. Due to the needs of the site, the requirements for the use environment of the bearing are increasing, so the quality of the thermal resistor must also meet the needs, such as earthquake resistance, oil leakage prevention, aging resistance, measurement accuracy, etc., especially in some large bearings with large vibrations, which can easily cause the thermal resistor probe to resonate and the thermal resistor to leak oil during operation, thus affecting the use of the thermal resistor. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a thermal resistor structure for measuring temperature of an oil-leakage-proof elastic bearing to solve the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, an embodiment of the present application provides an oil-leakage-proof elastic bearing temperature measuring thermal resistor structure, including a metal protective shell, a sleeve and a clamping screw, the metal protective shell is fixed to one end of the sleeve, a temperature sensing element is installed in the metal protective shell, a wire is connected to the temperature sensing element, a movable thread is arranged between the sleeve and the clamping screw, a joint matching the movable thread is arranged at the other end of the sleeve, the movable thread is threadedly connected to the joint, the wire passes through the sleeve, the movable thread and the clamping screw in sequence and is exposed outside the clamping screw, a spring and a sealing ball are sleeved on the wire, one end of the spring abuts against the movable thread, and the other end abuts against the joint; a second accommodating groove is arranged at the end of the movable thread facing away from the joint, the sealing ball is located in the second accommodating groove, a second internal thread is arranged in the second accommodating groove, a second external thread matching the second internal thread is arranged on the clamping screw, and the clamping screw is threadedly connected to the movable thread through the second internal thread and the second external thread.

[0005] Preferably, a first accommodating groove is provided in the joint, a first internal thread is provided in the first accommodating groove, a first external thread matching the first internal thread is provided at one end of the movable thread opposite to the joint, the movable thread is threadably connected to the joint via a second internal thread and a second external thread, and the spring is located in the first accommodating groove, with one end resting on the movable thread and the other end resting on the bottom of the first accommodating groove.

[0006] Preferably, the conductor includes an inner core, a shielding layer and an outer sheath, the shielding layer is sleeved outside the inner core, the outer sheath is sleeved outside the shielding layer, the conductor is provided with a stripping portion at a position corresponding to the spring, the inner core of the conductor is exposed at a position corresponding to the stripping portion, and the spring is sleeved on the inner core.

[0007] Preferably, the blocking ball is a silicone rubber blocking ball.

[0008] Preferably, the outer side of the conductor is provided with a sealed oil-blocking tube and a metal hose, which are located on the side of the clamping screw facing away from the movable thread; the sealed oil-blocking tube is located between the metal hose and the conductor.

[0009] Preferably, a third groove is provided at one end of the clamping screw facing away from the movable thread, and one end of the metal soft member close to the clamping screw is fixed in the third groove.

[0010] The utility model provides an anti-leakage oil elastic bearing temperature measuring thermal resistor structure with the following advantages:

[0011] 1. Add a spring to the wire inside the casing to make the thermal resistance probe anti-vibration;

[0012] 2. Use the movable thread to install a silicone rubber ball to seal the outside of the wire, which has a good effect in preventing oil leakage; BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a temperature measuring thermal resistor structure of an anti-leakage oil elastic bearing in an embodiment;

[0014] Markings in the accompanying drawings:

[0015] Metal protective shell 1; movable thread 2; blocking ball 3; pressing screw 4; sealing oil-blocking pipe 5; spring 6; casing 7; metal hose 8. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example:

[0018] The utility model provides a thermal resistance structure for measuring temperature of elastic bearings to prevent oil leakage. Figure 1, comprising a metal protective shell 1, a sleeve 7 and a clamping screw 4, wherein the metal protective shell is fixed at one end of the sleeve, a temperature sensing element is installed in the metal protective shell, and a wire is connected to the temperature sensing element, characterized in that a movable thread 2 is arranged between the sleeve and the clamping screw, a joint matching the movable thread is arranged at the other end of the sleeve, the movable thread is threadedly connected to the joint, the wire passes through the sleeve, the movable thread and the clamping screw in turn and is exposed outside the clamping screw, a spring 6 and a blocking ball 3 are sleeved on the wire, and in this embodiment, the blocking ball is preferably a silicone rubber card ball; a first accommodating groove is arranged in the joint, a first internal thread is arranged in the first accommodating groove, and the movable thread is directly opposite to the inner thread of the first internal thread. One end of the joint is provided with a first external thread matching the first internal thread, and the movable thread is threadedly connected to the joint through a second internal thread and a second external thread. The spring is located in the first accommodating groove, with one end resting on the movable thread and the other end resting on the bottom of the first accommodating groove, wherein the bottom of the first accommodating groove refers to a side of the first accommodating groove corresponding to the opening; the end of the movable thread facing away from the joint is provided with a second accommodating groove, the sealing ball is located in the second accommodating groove, and the second accommodating groove is provided with a second internal thread, the clamping screw is provided with a second external thread matching the second internal thread, and the clamping screw is threadedly connected to the movable thread through the second internal thread and the second external thread.

[0019] The above-mentioned anti-leakage oil elastic bearing temperature measuring thermal resistor structure has the following advantages:

[0020] 1. Add a spring to the wire inside the casing to make the thermal resistance probe anti-vibration;

[0021] 2. Use the movable thread to install a silicone rubber ball to seal the outside of the wire, which has a good effect in preventing oil leakage;

[0022] It should be noted that in the above embodiment, the movable thread can also be set in the form of a first groove and an internal thread. In this case, the joint is set in the form of an external thread, which can also achieve the purpose of the present application.

[0023] In one embodiment, the wire includes an inner wire core, a shielding layer and an outer sheath, the shielding layer is sleeved outside the inner wire core, the outer sheath is sleeved outside the shielding layer, the wire is provided with a stripping portion at a position corresponding to the spring, the inner wire core of the wire is exposed at a position corresponding to the stripping portion, and the spring is sleeved on the inner wire core. This structure directly sleeves the spring on the inner wire core, which can prevent the wire from moving relative to the spring, thereby preventing the thermal resistance probe from moving relative to the spring and reducing the anti-seismic performance.

[0024] In one embodiment, the outer side of the conductor is provided with a sealing oil-blocking tube 5 and a metal hose 8, and the oil-blocking tube and the metal hose are located on the side of the clamping screw facing away from the movable thread; the sealing oil-blocking tube is located between the metal hose and the conductor. In actual production, a third groove can be provided at the end of the clamping screw facing away from the movable thread, and the end of the metal hose close to the clamping screw can be fixed in the third groove. Generally, a thread corresponding to the texture of the metal hose can be provided on the inner side of the third groove, or other existing methods can be used for fixing, such as glue adhesion. This structure uses the movable thread to add a silicone rubber card ball to seal the outside of the conductor, and at the same time, an oil-blocking tube is added to the conductor to seal the inside of the conductor, forming a double-sealed oil leakage prevention structure; the sealing performance is good and the oil leakage prevention effect is better; in addition, the sealing ball sleeve is provided on the conductor, and when the structure vibrates as a whole, the friction between the ball and the conductor can further prevent the conductor from pulling the thermal resistor probe and causing it to vibrate.

[0025] When installing the above-mentioned oil-leakage-proof elastic bearing temperature measuring thermal resistor structure, the temperature sensing element is encapsulated in a metal protective shell 1, the outer sheath and shield are peeled off at the corresponding position of the wire installation spring to allow the internal wire core to leak out, the spring 6 is put on, the movable thread 2 is put on the left side of the spring, a silicone rubber card ball 3 is placed in the inner cavity of the thread, and a sealing oil-blocking tube 5 is installed in the middle position of the wire. Then, the clamping screw 4 of the encapsulated metal hose is put on the wire together with the hose, and the sleeve 7 and the movable thread 2 are tightened and assembled. While ensuring elasticity, the crimping screw 4 and the movable thread 2 are tightened and connected to ensure that the rubber card ball 3 and the wire are sealed and compressed.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the absence of conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0028] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A thermal resistor structure for measuring temperature of an oil-leakage-proof elastic bearing, comprising a metal protective shell (1), a sleeve (7) and a clamping screw (4), wherein the metal protective shell is fixed to one end of the sleeve, a temperature sensing element is installed in the metal protective shell, and a wire is connected to the temperature sensing element, characterized in that: A movable thread (2) is provided between the sleeve and the clamping screw, a joint matching the movable thread is provided at the other end of the sleeve, the movable thread is threadedly connected to the joint, the wire passes through the sleeve, the movable thread and the clamping screw in sequence and emerges from the clamping screw, a spring (6) and a sealing ball (3) are sleeved on the wire, one end of the spring abuts against the movable thread, and the other end abuts against the inside of the joint; A second receiving groove is provided at the end of the movable thread facing away from the joint, the sealing ball is located in the second receiving groove, a second internal thread is provided in the second receiving groove, a second external thread matching the second internal thread is provided on the clamping screw, and the clamping screw is threadably connected to the movable thread via the second internal thread and the second external thread.

2. The thermal resistance structure for measuring temperature of an oil-leakage-proof elastic bearing according to claim 1, characterized in that: A first accommodating groove is provided in the joint, a first internal thread is provided in the first accommodating groove, a first external thread matching the first internal thread is provided at one end of the movable thread opposite to the joint, the movable thread is threadably connected to the joint via a second internal thread and a second external thread, the spring is located in the first accommodating groove, one end of the spring abuts against the movable thread, and the other end abuts against the bottom of the first accommodating groove.

3. The thermal resistance structure for measuring temperature of an oil-leakage-proof elastic bearing according to claim 1 or 2, characterized in that: The conductor includes an inner core, a shielding layer and an outer sheath, wherein the shielding layer is sleeved outside the inner core, and the outer sheath is sleeved outside the shielding layer. A stripping portion is provided at a position of the conductor corresponding to the spring, and the inner core of the conductor is exposed at a position corresponding to the stripping portion, and the spring is sleeved on the inner core.

4. The thermal resistance structure for measuring temperature of an oil-leakage-proof elastic bearing according to claim 1 or 2, characterized in that: The blocking ball is a silicone rubber blocking ball.

5. The thermal resistance structure for measuring temperature of an oil-leakage-proof elastic bearing according to claim 1 or 2, characterized in that: The outer side of the conductor is provided with a sealed oil-blocking tube (5) and a metal hose (8), and the oil-blocking tube and the metal hose are located on the side of the clamping screw facing away from the movable thread; The sealed oil-blocking tube is located between the metal hose and the wire.

6. The thermal resistance structure for measuring temperature of an oil-leakage-proof elastic bearing according to claim 5, characterized in that: A third groove is arranged at one end of the clamping screw facing away from the movable thread, and one end of the metal soft close to the clamping screw is fixed in the third groove.

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