Sensor device for motor car bearing torque detection

Abstract

The utility model relates to the technical field of sensor devices, and discloses a sensor device for motor car bearing torque detection, which solves the problem of poor sealing performance of the existing torque sensor, and comprises a torque sensor body consisting of a sensor main body, a detection shaft, two end sleeves and two bearings, the detection shaft is inserted into the center position in the sensor body, the two end sleeves are welded to the two ends of the sensor body respectively, a first dustproof sealing ring is arranged at one end in each end sleeve and connected with the corresponding end sleeve through a first clamping spring, and an end cover is arranged at the other end in each end sleeve and connected with the corresponding end sleeve through a second clamping spring. A second dustproof sealing ring and a third dustproof sealing ring are arranged on the two sides of the end cover respectively and connected with the end cover through second clamping springs. By means of the sensor device, torque detection can be achieved, the sealing performance of the sensor can be improved, and then the accuracy of detection data is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sensor device technical field, concretely is a kind of sensor device for high-speed train bearing torque detection. BACKGROUND

[0002] After high-speed train bearing production and processing are completed, its various performances need to be detected, such as temperature, vibration, rotating speed, torque detection under different load, different rotating speed conditions, etc., the current detection device is generally integrated structure, i.e. the bearing to be detected is installed by shaft, then each detection device is installed in turn, wherein torque sensor is generally installed between motor and electromagnetic clutch by shaft coupling, torque sensor provides alternating excitation voltage to variable bridge by non-contact rotating magnetic coupling principle, according to the working characteristics of bridge, elastic shaft generates certain size of unbalanced electric signal related to torque at the two ends of variable bridge when it is variable under the action of torque, torque signal is taken out by rotating magnetic coupling principle, i.e. torque detection can be realized, the center shaft in existing torque sensor needs to be connected with shell by bearing, then end cover is set at the both ends of shell, but end cover can only realize bearing limiting, without improving overall sealing, after external dust and other impurities enter bearing, resistance is generated, which affects detection accuracy, and when dust and other impurities enter sensor interior, internal electronic components are prone to corrosion, and use stability is not good, therefore, the present application provides a kind of sensor device for high-speed train bearing torque detection. SUMMARY

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a kind of sensor device for high-speed train bearing torque detection, effectively solve the problem of poor sealing of existing torque sensor.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of sensor device for high-speed train bearing torque detection, including torque sensor body, the torque sensor body is connected to the top of detection platform by mounting bracket, the both ends of torque sensor body are connected with motor and electromagnetic clutch respectively by two shaft couplings, torque sensor body is composed of sensor main body fuselage, detection shaft, two end sleeves and two bearings, detection shaft is inserted at the central position inside sensor main body fuselage, two end sleeves are respectively welded and connected at the both ends of sensor main body fuselage, bearing is connected between detection shaft and end sleeve, one end in end sleeve is provided with dustproof seal ring one, dustproof seal ring one is connected with end sleeve by snap spring one, the other end in end sleeve is provided with end cover, the both sides of end cover are provided with dustproof seal ring two and dustproof seal ring three respectively, dustproof seal ring two and dustproof seal ring three are connected with end cover by snap spring two, the inner side of dustproof seal ring one, dustproof seal ring two and dustproof seal ring three and the outer side of detection shaft are connected.

[0005] Preferably, one end of the end sleeve is fixedly provided with a positioning ring I matched with the outer ring of the bearing, and the outer surface of the detection shaft is fixedly provided with a positioning ring II matched with the inner ring of the bearing.

[0006] Preferably, the positioning ring I and the end sleeve form an annular groove I, and the dustproof sealing ring I and the clasp spring I are connected to the inside of the annular groove I.

[0007] Preferably, the end cover is fixedly connected with the end sleeve through a plurality of bolts.

[0008] Preferably, a central through hole matched with the detection shaft is formed in the central position of the end cover, annular grooves II and III are formed in the two sides of the inside of the end cover, the dustproof sealing ring II is connected to the inside of the annular groove II through the clasp spring II, and the dustproof sealing ring III is connected to the inside of the annular groove III through the clasp spring II.

[0009] Preferably, the dustproof sealing ring I is composed of a sealing ring main body I and a groove type connecting ring I, and the groove type connecting ring I is located on the arc-shaped outer surface of the sealing ring main body I.

[0010] Preferably, the dustproof sealing ring II and the dustproof sealing ring III are both composed of a sealing ring main body II and a groove type connecting ring II, and the groove type connecting ring II is located on the arc-shaped outer surface of the sealing ring main body II.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] (1) In the work, through being provided with the dustproof sealing ring I, the dustproof sealing ring II and the dustproof sealing ring III, the connection sealing property of the two ends of the detection shaft and the sensor main body can be improved, dust and other impurities can be prevented from entering the inside of the bearing and the sensor main body, the accuracy of the detection data can be prevented from being affected, and the corrosion of the electronic elements in the inside of the sensor main body can be prevented from occurring, through being provided with the clasp spring I and the clasp spring II, the dustproof sealing ring I, the dustproof sealing ring II and the dustproof sealing ring III can be installed and fixed, and the convenience and stability of installation can be improved.

[0013] (2) Through being provided with the positioning ring I and the positioning ring II, the bearing can be limited, the axial movement of the bearing in the working process can be prevented, through being provided with the annular groove I, the dustproof sealing ring I and the clasp spring I can be conveniently installed, through being provided with the annular grooves II and III, the dustproof sealing ring II, the dustproof sealing ring III and the clasp spring II can be installed. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model.

[0015] In the drawings:

[0016] Figure 1 It is the torque sensor body and detection platform connection structure schematic view of the utility model;

[0017] Figure 2 It is the torque sensor body structure schematic view of the utility model;

[0018] Figure 3 It is the torque sensor body partial sectional view of the utility model;

[0019] Figure 4 It is the utility model Figure 3 Partial enlarged view of the utility model;

[0020] Figure 5 It is the end cover partial sectional view of the utility model;

[0021] Figure 6 It is the dustproof sealing ring one partial sectional view of the utility model;

[0022] Figure 7 It is the dustproof sealing ring two partial sectional view of the utility model;

[0023] Figure 8 It is the clamp spring one structure schematic view of the utility model;

[0024] In the drawings: 1, torque sensor body;2, mounting frame;3, detection platform;4, shaft coupling;5, motor;6, electromagnetic clutch;7, sensor main body fuselage;8, detection shaft;9, end sleeve;10, bearing;11, dustproof sealing ring one;12, clamp spring one;13, end cover;14, dustproof sealing ring two;15, dustproof sealing ring three;16, clamp spring two;17, positioning ring one;18, positioning ring two;19, annular groove one;20, bolt;21, center through hole;22, annular groove two;23, annular groove three;24, sealing ring main body one;25, recessed connecting ring one;26, sealing ring main body two;27, recessed connecting ring two. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] By Figure 1 , Figure 2 , Figure 3 , Figure 4 And Figure 8The utility model provides a sensor device for high speed train bearing torque detection, including torque sensor body 1, torque sensor body 1 is connected to the top of detection platform 3 through mounting bracket 2, the both ends of torque sensor body 1 are connected with motor 5 and electromagnetic clutch 6 respectively through two shaft couplings 4, torque sensor body 1 is constituted by sensor main body fuselage 7, detection shaft 8, two end sleeves 9 and two bearings 10, detection shaft 8 is inserted in the center position inside sensor main body fuselage 7, two end sleeves 9 are welded to the both ends of sensor main body fuselage 7 respectively, bearing 10 is connected between detection shaft 8 and end sleeve 9, one end in end sleeve 9 is provided with dustproof sealing ring no. 1 11, dustproof sealing ring no. 1 11 is connected with end sleeve 9 through snap spring no. 1 12, the other end in end sleeve 9 is provided with end cover 13, both sides of end cover 13 are provided with dustproof sealing ring no. 2 14 and dustproof sealing ring no. 3 15 respectively, dustproof sealing ring no. 2 14 and dustproof sealing ring no. 3 15 are connected with end cover 13 through snap spring no. 2 16, the inner side of dustproof sealing ring no. 1 11, dustproof sealing ring no. 2 14 and dustproof sealing ring no. 3 15 is connected with the outer side of detection shaft 8;

[0027] When using, torque sensor body 1 is connected between motor 5 and electromagnetic clutch 6 through shaft coupling 4, torque detection is realized through torque sensor body 1, bearing 10 can improve the activity of detection shaft 8 and sensor main body fuselage 7 connection, dustproof sealing ring no. 1 11, dustproof sealing ring no. 2 14 and dustproof sealing ring no. 3 15 can realize sealing effect, avoid the impurities such as dust into the inside of bearing 10 and sensor main body fuselage 7, snap spring no. 1 12 realizes the fixed dustproof sealing ring no. 1 11, snap spring no. 2 16 realizes the fixed dustproof sealing ring no. 2 14 and dustproof sealing ring no. 3 15;

[0028] By Figure 3 、 Figure 4 and Figure 8 One end in end sleeve 9 is fixedly provided with positioning ring no. 1 17 matched with the outer ring of bearing 10, the outer surface of detection shaft 8 is fixedly provided with positioning ring no. 2 18 matched with the inner ring of bearing 10, annular groove no. 1 19 is formed between positioning ring no. 1 17 and end sleeve 9, dustproof sealing ring no. 1 11 and snap spring no. 1 12 are connected inside annular groove no. 1 19;

[0029] Positioning ring no. 1 17 and positioning ring no. 2 18 can limit the outer ring and inner ring of bearing 10 respectively, improve the stability of bearing 10, avoid the axial movement of bearing 10, annular groove no. 1 19 realizes the installation of dustproof sealing ring no. 1 11 and snap spring no. 1 12;

[0030] By Figures 3 to 7The end cover 13 is fixedly connected with the end sleeve 9 through a plurality of bolts 20, a center through hole 21 matched with the detection shaft 8 is arranged at the center position of the end cover 13, annular grooves two 22 and three 23 are respectively arranged at the two sides of the inside of the end cover 13, the dustproof sealing ring two 14 is connected to the inside of the annular groove two 22 through the snap spring two 16, the dustproof sealing ring three 15 is connected to the inside of the annular groove three 23 through the snap spring two 16, the dustproof sealing ring one 11 is composed of a sealing ring main body one 24 and a recessed connecting ring one 25, the recessed connecting ring one 25 is arranged on the arc-shaped outer surface of the sealing ring main body one 24, the dustproof sealing ring two 14 and the dustproof sealing ring three 15 are both composed of a sealing ring main body two 26 and a recessed connecting ring two 27, the recessed connecting ring two 27 is arranged on the arc-shaped outer surface of the sealing ring main body two 26;

[0031] The annular grooves two 22 and three 23 realize the installation of the dustproof sealing ring two 14, the dustproof sealing ring three 15 and the snap spring two 16, the recessed connecting ring one 25 can be connected with the snap spring one 12, and the recessed connecting ring two 27 can be connected with the snap spring two 16.

[0032] In work, the dustproof sealing ring one, the dustproof sealing ring two and the dustproof sealing ring three are arranged, so that the connection sealing performance of the detection shaft and the two ends of the sensor main body is improved, dust and other impurities are prevented from entering the inside of the bearing and the sensor main body, so that the accuracy of the detection data is prevented from being affected, and the corrosion of the electronic elements in the inside of the sensor main body is prevented from occurring, the snap spring one and the snap spring two are arranged, so that the dustproof sealing ring one, the dustproof sealing ring two and the dustproof sealing ring three are installed and fixed, and the convenience and stability of the installation are improved, the positioning ring one and the positioning ring two are arranged, so that the bearing is limited, and the axial movement of the bearing in the working process is prevented, the annular groove one is arranged, so that the dustproof sealing ring one and the snap spring one are conveniently installed, and the annular grooves two and three are arranged, so that the dustproof sealing ring two, the dustproof sealing ring three and the snap spring two are installed.

Claims

1. A sensor device for detecting torque in train bearings, comprising a torque sensor body (1), characterized in that: The torque sensor body (1) is connected to the top of the test bench (3) via a mounting bracket (2). The two ends of the torque sensor body (1) are connected to the motor (5) and the electromagnetic clutch (6) respectively via two couplings (4). The torque sensor body (1) consists of a sensor body (7), a detection shaft (8), two end sleeves (9) and two bearings (10). The detection shaft (8) is inserted into the center of the sensor body (7). The two end sleeves (9) are welded to the two ends of the sensor body (7) respectively. The bearings (10) are connected between the detection shaft (8) and the end sleeves (9). One end of the end sleeve (9) is provided with a dustproof sealing ring 1 (11). The dustproof sealing ring 1 (11) is connected to the end sleeve (9) through a snap ring 1 (12). The other end of the end sleeve (9) is provided with an end cap (13). Dustproof sealing ring 2 (14) and dustproof sealing ring 3 (15) are provided on both sides of the end cap (13). Dustproof sealing ring 2 (14) and dustproof sealing ring 3 (15) are connected to the end cap (13) through snap ring 2 (16). The inner side of dustproof sealing ring 1 (11), dustproof sealing ring 2 (14) and dustproof sealing ring 3 (15) are fitted and connected to the outer side of the detection shaft (8).

2. The sensor device for detecting the torque of a train bearing according to claim 1, characterized in that: One end of the end sleeve (9) is fixedly provided with a positioning ring 1 (17) that matches the outer ring of the bearing (10), and the outer surface of the detection shaft (8) is fixedly provided with a positioning ring 2 (18) that matches the inner ring of the bearing (10).

3. The sensor device for detecting the torque of a train bearing according to claim 2, characterized in that: The positioning ring (17) and the end sleeve (9) form an annular groove (19), and the dustproof sealing ring (11) and the snap ring (12) are both connected inside the annular groove (19).

4. The sensor device for detecting the torque of a train bearing according to claim 1, characterized in that: The end cap (13) is fixedly connected to the end sleeve (9) by several bolts (20).

5. A sensor device for detecting the torque of a train bearing according to claim 1, characterized in that: The end cap (13) has a central through hole (21) that matches the detection shaft (8) at its center. The two sides inside the end cap (13) are respectively provided with annular groove two (22) and annular groove three (23). Dustproof sealing ring two (14) is connected to the inside of annular groove two (22) through snap ring two (16), and dustproof sealing ring three (15) is connected to the inside of annular groove three (23) through snap ring two (16).

6. A sensor device for detecting the torque of a train bearing according to claim 5, characterized in that: The dustproof sealing ring (11) is composed of a sealing ring body (24) and a grooved connecting ring (25), with the grooved connecting ring (25) located on the arc-shaped outer surface of the sealing ring body (24).

7. A sensor device for detecting the torque of a train bearing according to claim 5, characterized in that: The dustproof sealing ring two (14) and the dustproof sealing ring three (15) are both composed of sealing ring body two (26) and grooved connecting ring two (27), with the grooved connecting ring two (27) located on the arc-shaped outer surface of sealing ring body two (26).

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