Block type elevator traction machine monitoring device

Abstract

A block type elevator traction machine monitoring device comprises a machine base and two block type brakes fixedly connected to the machine base, a temperature sensor is arranged on the machine base, a temperature monitoring hole is formed in the machine base, and the temperature monitoring end of the temperature sensor is inserted into the temperature monitoring hole; the temperature monitoring end of the temperature sensor is sleeved with a heat conduction rubber sleeve capable of conducting elastic deformation, the inner side of the heat conduction rubber sleeve is attached to the surface of the temperature monitoring end of the temperature sensor, and the outer side of the heat conduction rubber sleeve is attached to the hole wall of the temperature monitoring hole. The gap between the surface of the temperature monitoring end and the hole wall of the temperature monitoring hole is filled with the heat-conducting rubber sleeve, so that the temperature monitoring precision and the response speed are effectively improved, the temperature condition of the elevator traction machine can be monitored more accurately, the problem of abnormal temperature can be found and processed in time, and the working efficiency is improved. Equipment damage and safety accidents caused by too high temperature are effectively avoided, and the safety of the elevator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a block-type elevator traction machine monitoring device. Background Art

[0002] With the continuous development of elevator technology, the safety and reliability of elevator traction machines have become important considerations in elevator operation. Elevator traction machines generate heat during operation, and excessive temperatures may cause equipment damage or even lead to safety accidents. Therefore, real-time monitoring of the temperature of elevator traction machines is an important means to ensure the safe operation of elevators.

[0003] The Chinese patent No. 201520148042.X discloses a permanent magnet synchronous elevator traction machine, the base of which is provided with a temperature monitoring hole and a temperature sensor. When the temperature of the elevator traction machine exceeds the set temperature value, the temperature sensor will send a signal to stop the traction machine, thereby effectively avoiding safety accidents caused by excessive temperature.

[0004] However, in actual use of this patent, since there is usually a certain gap between the temperature monitoring end of the temperature sensor and the wall of the temperature monitoring hole, the heat cannot be quickly and effectively conducted to the temperature monitoring end, thereby affecting the accuracy of temperature monitoring; moreover, due to the untimely heat conduction, the response speed of the temperature sensor to temperature changes will also be affected, and it is impossible to quickly and accurately reflect the actual temperature of the traction machine. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a block-type elevator traction machine monitoring device.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A block-type elevator traction machine monitoring device comprises a machine base and two block-type brakes fixedly connected to the machine base, a temperature sensor is arranged on the machine base, the temperature sensor is electrically connected to a monitoring module which receives temperature data transmitted by the temperature sensor and compares it with a preset temperature threshold, the monitoring module is electrically connected to an alarm module which sends an alarm signal to an elevator control cabinet and a remote service platform block when the temperature data exceeds the preset temperature threshold; a temperature monitoring hole is arranged on the machine base, and the temperature monitoring end of the temperature sensor is inserted into the temperature monitoring hole; it is characterized in that: a heat-conducting rubber sleeve which can be elastically deformed is mounted on the temperature monitoring end of the temperature sensor, the inner side of the heat-conducting rubber sleeve is in contact with the surface of the temperature monitoring end of the temperature sensor, and the outer side is in contact with the hole wall of the temperature monitoring hole.

[0008] In the utility model, the thermally conductive rubber sleeve comprises a bottom surrounding sleeve and at least two arc-shaped surrounding parts, the bottom surrounding sleeve is provided with an end cavity for accommodating the bottom end of the temperature monitoring end, and the opening of the end cavity is located at the top of the bottom surrounding sleeve;

[0009] At least two of the arc-shaped enclosing parts are distributed along the circumference of the bottom enclosing sleeve and form an enclosing cavity connected to the end cavity. The bottom of the arc-shaped enclosing part is connected to the top of the bottom enclosing sleeve. A reserved deformation gap D is left between the circumferentially adjacent arc-shaped enclosing parts to facilitate the deformation of the arc-shaped enclosing parts.

[0010] In the utility model, the bottom surrounding sleeve and the arc-shaped surrounding portion are an integrally formed structure.

[0011] In the utility model, the diameter of the bottom surrounding sleeve increases gradually from bottom to top.

[0012] In the utility model, the upper part of the bottom surrounding sleeve is provided with at least two split cuts along the circumferential direction, and the split cuts are all penetrated and connected to the end cavity. The upper part of the bottom surrounding sleeve is separated by the split cuts to form at least two deformable connecting parts, and the top end of each deformable connecting part is integrally connected to the lower end of one of the arc-shaped surrounding parts.

[0013] In the present invention, the split incision includes a first incision and a second incision connected from top to bottom, wherein the cross-sectional shape of the first incision is a rectangle, and the width of the first incision is equal to the reserved deformation gap D;

[0014] The cross-sectional shape of the second cutout is an inverted triangle, and the lower end of the second cutout extends close to the lowest point of the end cavity.

[0015] In the present invention, the lowest point of the second incision is at least 1 mm higher than the lowest point of the end cavity.

[0016] In the utility model, at least one arc-shaped surrounding portion is provided with a taking-out hole, and the taking-out hole passes through the inner side and the outer side of the arc-shaped surrounding portion.

[0017] In the utility model, the heat-conducting rubber sleeve is made of silica gel.

[0018] In the utility model, a brake monitoring switch is provided on the fixed plate of the block brake, and a monitoring mating piece is provided on the movable plate of the block brake for cooperating with the brake monitoring switch to monitor whether the block brake performs a braking action, and the monitoring mating piece corresponds to the brake monitoring switch; the brake monitoring switch is also communicatively connected to the monitoring module.

[0019] Beneficial effects of the utility model:

[0020] The utility model sets a heat-conducting rubber sleeve on the temperature monitoring end, and the inner side of the heat-conducting rubber sleeve is in contact with the surface of the temperature monitoring end, and the outer side is in contact with the hole wall of the temperature monitoring hole, so that the gap between the surface of the temperature monitoring end and the hole wall of the temperature monitoring hole can be effectively eliminated, so that the heat can be quickly and effectively conducted to the temperature monitoring end, thereby improving the accuracy of temperature monitoring and making the monitoring result more accurate and reliable;

[0021] Moreover, due to the addition of thermal conductive materials, heat can be transferred to the temperature monitoring end more quickly, which greatly speeds up the temperature sensor's response to temperature changes. In this way, once the traction machine has an abnormal temperature, the temperature sensor can quickly send a signal, providing time guarantee for timely processing.

[0022] In summary, the utility model uses a thermally conductive rubber sleeve to fill the gap between the surface of the temperature monitoring end and the wall of the temperature monitoring hole, effectively improving the accuracy and response speed of temperature monitoring, so that the temperature of the elevator traction machine can be monitored more accurately, and abnormal temperature problems can be discovered and handled in time, effectively avoiding equipment damage and safety accidents caused by excessive temperature, and improving the safety of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Figure 1 is a schematic diagram of this embodiment;

[0025] Figure 2 This is a schematic diagram of the installation of the temperature sensor;

[0026] Figure 3 It is a three-dimensional picture of the thermal conductive rubber sleeve;

[0027] Figure 4 is a cross-sectional view of the thermal conductive rubber sleeve;

[0028] Figure 5 This is the installation diagram of the brake monitoring switch;

[0029] Figure 6 FIG. 4 is a connection block diagram of this embodiment. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0033] Reference Figure 1-5 A block-type elevator traction machine monitoring device comprises a machine base 1, two block-type brakes 2 fixedly connected to the machine base 1, and a rotor rotatably arranged on the machine base 1, wherein a rotor yoke is arranged on the rotor, and a temperature sensor 3 is arranged on the machine base 1, wherein the temperature sensor 3 is electrically connected to a monitoring module 4 for receiving temperature data transmitted by the temperature sensor 3 and comparing the temperature data with a preset temperature threshold, wherein the monitoring module 4 is electrically connected to an alarm module 5 for sending an alarm signal to an elevator control cabinet and a remote service platform block when the temperature data exceeds the preset temperature threshold; a temperature monitoring hole 11 is arranged on the machine base 1, and a temperature monitoring end 31 of the temperature sensor 3 is inserted into the temperature monitoring hole 11, and a heat-conducting rubber sleeve 6 capable of elastic deformation is mounted on the temperature monitoring end 31 of the temperature sensor 3, wherein the inner side of the heat-conducting rubber sleeve 6 is in contact with the surface of the temperature monitoring end 31 of the temperature sensor 3, and the outer side is in contact with the hole wall of the temperature monitoring hole 11, thereby filling the gap between the hole wall of the temperature monitoring hole 11 and the temperature monitoring end 31 as much as possible, ensuring the heat conduction quality and improving the detection accuracy of the temperature sensor 3.

[0034] In this embodiment, a screw hole section is provided at the opening position of the temperature monitoring hole 11, and a threaded section 33 threadably matched with the screw hole section is provided on the sensor body 32 of the temperature sensor 3, so that the temperature sensor 3 can be installed and fixed on the base 1 through the threaded connection between the threaded section 33 and the screw hole section.

[0035] As a preferred embodiment, the thermally conductive rubber sleeve 6 includes a bottom surrounding sleeve 61 and at least two arc-shaped surrounding portions 62, the bottom surrounding sleeve 61 is provided with an end cavity 63 for accommodating the bottom end of the temperature monitoring end 31, the end cavity 63 is hemispherical, and the opening of the end cavity 63 is located at the top of the bottom surrounding sleeve 61; at least two of the arc-shaped surrounding portions 62 are distributed along the circumference of the bottom surrounding sleeve 61 and form an surrounding cavity connected to the end cavity 63, the bottom of the arc-shaped surrounding portion 62 is connected to the top of the bottom surrounding sleeve 61; the lower end of the arc-shaped surrounding portion 62 is integrally connected to the bottom surrounding sleeve 61, and a reserved deformation gap D is left between the circumferentially adjacent arc-shaped surrounding portions 62 to facilitate the deformation of the arc-shaped surrounding portions 62. During installation, the temperature monitoring end 31 is first inserted into the surrounding cavity and the end cavity 63, so that the thermal conductive rubber sleeve 6 is sleeved on the temperature monitoring end 31; when the temperature monitoring end 31 is inserted into the temperature monitoring hole 11, the bottom surrounding sleeve 61 and the arc-shaped surrounding portion 62 are deformed and fit on the temperature monitoring end 31 due to being squeezed by the hole wall of the temperature monitoring hole 11, thereby filling the gap between the hole wall of the temperature monitoring hole 11 and the temperature monitoring end 31 as much as possible, ensuring the thermal conductivity quality and improving the detection accuracy of the temperature sensor 3.

[0036] In this embodiment, the bottom surrounding sleeve 61 and the arc-shaped surrounding portion 62 are integrally formed structures, and the thermally conductive rubber sleeve 6 is made of silicone, which is resistant to high temperatures and has good insulation and thermal conductivity. It can conduct heat to the temperature sensor 3 on the machine base 1 for a long time and stably, thereby ensuring the accuracy of the temperature sensor 3 in monitoring the temperature of the elevator traction machine.

[0037] In this embodiment, the bottom surrounding sleeve 61 is hemispherical, and the diameter of the hemispherical bottom surrounding sleeve 61 gradually increases from bottom to top, which is conducive to inserting the thermal conductive rubber sleeve 6 into the temperature monitoring hole 11.

[0038] In this embodiment, at least two split cuts 64 are provided in the upper part of the bottom surrounding sleeve 61 along the circumferential direction, and the split cuts 64 are all through and connected to the end cavity 63. The upper part of the bottom surrounding sleeve 61 is divided by the split cuts 64 to form at least two deformable connecting parts 65, and the top of each deformable connecting part 65 is integrally connected to the lower end of one of the arc-shaped surrounding parts 62. The upper part of the bottom surrounding sleeve 61 is formed by the split cuts 64, so that the bottom surrounding sleeve 61 can be better deformed to fit the bottom of the temperature monitoring end 31 of the temperature sensor 3, thereby ensuring the quality of heat conduction.

[0039] In this embodiment, in order to allow the deformable connection portion 65 to better fit on the surface of the temperature monitoring end 31 of the temperature sensor 3, the split incision 64 includes a first incision 641 and a second incision 642 connected from top to bottom, wherein the cross-sectional shape of the first incision 641 is a rectangle, and the width of the first incision 641 is equal to the reserved deformation gap D, which is conducive to the deformation connection portion 65 and the arc-shaped surrounding portion 62 to produce similar deformation effects and better fit on the surface of the temperature monitoring end 31 of the temperature sensor 3; the cross-sectional shape of the second incision 642 is an inverted triangle, and the lower end of the second incision 642 extends close to the lowest point of the end cavity 63, and the lowest point of the second incision 642 is at least 1 mm higher than the lowest point of the end cavity 63, so that the deformable connection portion 65 cannot be easily disconnected from the bottom surrounding sleeve 61.

[0040] Because after the temperature sensor 3 is damaged, when the elevator worker pulls out the temperature monitoring end 31 of the temperature sensor 3 from the temperature monitoring hole 11, the thermal conductive rubber sleeve 6 mounted on the temperature monitoring end 31 may not be pulled out simultaneously with the temperature sensor 3. In order to solve this technical problem, at least one arc-shaped surrounding portion 62 is provided with a removal hole 66, and the removal hole 66 passes through the inner and outer sides of the arc-shaped surrounding portion 62. When pulling out the thermal conductive rubber sleeve 6, the elevator worker hooks the hook on the removal hole 66 to pull out the thermal conductive rubber sleeve 6.

[0041] In this embodiment, a brake monitoring switch 22 is provided on the fixed plate 21 of the block brake 2, and a monitoring matching component 24 is provided on the movable plate 23 of the block brake 2 for cooperating with the brake monitoring switch 22 to monitor whether the block brake 2 performs a braking action. The monitoring matching component 24 corresponds to the brake monitoring switch 22. When the movable plate 23 and the fixed plate 21 of the block brake 2 are engaged / disengaged, the action of the movable plate 23 can directly or indirectly drive the brake monitoring switch 22 to work, so that the brake monitoring switch 22 detects the state of the block brake 2 and feeds back the signal to the elevator control cabinet. The above are all prior arts and are not described in detail. For details, please refer to Chinese Patent No. 201420334668.5. Furthermore, the brake monitoring switch 22 is also communicatively connected to the monitoring module 4, so that the monitoring module 4 can also use the brake monitoring switch 22 to monitor whether the elevator control cabinet controls the block brake 2 to brake the elevator traction machine after the abnormal temperature alarm of the elevator traction machine. If not, the monitoring module 4 will simultaneously send the brake abnormality signal to the manufacturer's service platform to realize the brake fault alarm.

[0042] As a preferred embodiment, a monitoring housing 7 is installed on the base 1, and the monitoring module 4 and the alarm module 5 are integrated and installed in the monitoring housing 7. The monitoring module 4 is connected to the power system of the elevator through a power adapter circuit and is powered by the power system of the elevator.

[0043] In this embodiment, the alarm module 5 includes a wired communication module and a wireless communication module, wherein the wired communication module is wiredly connected to the elevator control cabinet, so that when a temperature abnormality occurs, the monitoring module 4 sends an alarm signal to the elevator control cabinet through the wired communication module, so that the elevator control cabinet controls the elevator traction machine to stop running; the wireless communication module is wirelessly connected to the elevator control cabinet and the manufacturer's service platform, and can send an alarm signal to the manufacturer's service platform to let the elevator workers know about the elevator traction machine failure. In addition, not limited to the above structure, in other embodiments, the alarm module 5 only includes a wireless communication module, and the elevator control cabinet and the manufacturer's service platform are wirelessly connected through the wireless communication module.

[0044] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the protection scope of the present invention.

Claims

1. A block-type elevator traction machine monitoring device, comprising a machine base (1), two block-type brakes (2) fixedly connected to the machine base (1), a temperature sensor (3) being arranged on the machine base (1), the temperature sensor (3) being electrically connected to a monitoring module (4) for receiving temperature data transmitted by the temperature sensor (3) and comparing the temperature data with a preset temperature threshold, the monitoring module (4) being electrically connected to an alarm module (5) for sending an alarm signal to an elevator control cabinet and a remote service platform when the temperature data exceeds the preset temperature threshold; a temperature monitoring hole (11) being arranged on the machine base (1), a temperature monitoring end (31) of the temperature sensor (3) being inserted into the temperature monitoring hole (11); characterized in that: The temperature monitoring end (31) of the temperature sensor (3) is sleeved with an elastically deformable heat-conducting rubber sleeve (6), the inner side of the heat-conducting rubber sleeve (6) being in contact with the surface of the temperature monitoring end (31) of the temperature sensor (3), and the outer side of the heat-conducting rubber sleeve (6) being in contact with the wall of the temperature monitoring hole (11).

2. A block-type elevator traction machine monitoring device according to claim 1, characterized in that: The heat-conducting rubber sleeve (6) comprises a bottom surrounding sleeve (61) and at least two arc-shaped surrounding portions (62); the bottom surrounding sleeve (61) is provided with an end cavity (63) for accommodating the bottom end of the temperature monitoring end (31); the opening of the end cavity (63) is located at the top of the bottom surrounding sleeve (61); At least two of the arc-shaped enclosing portions (62) are distributed along the circumference of the bottom enclosing sleeve (61) and form an enclosing cavity that is connected to the end cavity (63); the bottom of the arc-shaped enclosing portion (62) is connected to the top of the bottom enclosing sleeve (61); and a reserved deformation gap D is left between the circumferentially adjacent arc-shaped enclosing portions (62) to facilitate deformation of the arc-shaped enclosing portions (62).

3. A block-type elevator traction machine monitoring device according to claim 2, characterized in that: The bottom surrounding sleeve (61) and the arc-shaped surrounding portion (62) are an integrally formed structure.

4. A block-type elevator traction machine monitoring device according to claim 2, characterized in that: The diameter of the bottom surrounding sleeve (61) gradually increases from bottom to top.

5. A block-type elevator traction machine monitoring device according to claim 2, characterized in that: The upper portion of the bottom surrounding sleeve (61) is provided with at least two split cuts (64) along the circumferential direction, and the split cuts (64) are both penetrated and connected to the end cavity (63). The upper portion of the bottom surrounding sleeve (61) is separated by the split cuts (64) to form at least two deformable connecting portions (65), and the top end of each deformable connecting portion (65) is integrally connected to the lower end of one of the arc-shaped surrounding portions (62).

6. A block-type elevator traction machine monitoring device according to claim 5, characterized in that: The splitting cutout (64) comprises a first cutout (641) and a second cutout (642) connected from top to bottom, wherein the cross-sectional shape of the first cutout (641) is a rectangle, and the width of the first cutout (641) is equal to the reserved deformation gap D; The cross-sectional shape of the second cutout (642) is an inverted triangle, and the lower end of the second cutout (642) extends close to the lowest point of the end cavity (63).

7. A block-type elevator traction machine monitoring device according to claim 6, characterized in that: The lowest point of the second incision (642) is at least 1 mm higher than the lowest point of the end cavity (63).

8. A block-type elevator traction machine monitoring device according to claim 2, characterized in that: At least one arc-shaped surrounding portion (62) is provided with a taking-out hole (66), and the taking-out hole (66) penetrates the inner side and the outer side of the arc-shaped surrounding portion (62).

9. A block-type elevator traction machine monitoring device according to any one of claims 1 to 8, characterized in that: The heat-conducting rubber sleeve (6) is made of silicone.

10. A block-type elevator traction machine monitoring device according to any one of claims 1 to 8, characterized in that: A brake monitoring switch (22) is provided on the fixed plate (21) of the block brake (2), and a monitoring matching piece (24) is provided on the movable plate (23) of the block brake (2) for cooperating with the brake monitoring switch (22) to monitor whether the block brake (2) performs a braking action, wherein the monitoring matching piece (24) corresponds to the brake monitoring switch (22); the brake monitoring switch (22) is also communicatively connected to the monitoring module (4).

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