CN216086358U - Novel explosion-proof machine temperature measurement cable extraction structure - Google Patents
Novel explosion-proof machine temperature measurement cable extraction structure Download PDFInfo
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- CN216086358U CN216086358U CN202122535239.7U CN202122535239U CN216086358U CN 216086358 U CN216086358 U CN 216086358U CN 202122535239 U CN202122535239 U CN 202122535239U CN 216086358 U CN216086358 U CN 216086358U
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Abstract
The utility model discloses a novel explosion-proof motor temperature measurement cable leading-out structure, which comprises a temperature measurement junction box, a motor main junction box base and a temperature measurement cable, wherein a preformed hole is formed in the middle of an insulating mounting plate at the bottom of the motor main junction box base, and a first explosion-proof hole is formed in the position, corresponding to the preformed hole, of a bottom plate of the motor main junction box base; the side wall of the temperature measuring junction box is provided with a second explosion-proof hole; the temperature measuring cable comprises a cluster lead, two ends of the cluster lead are respectively connected with the first explosion-proof threading device and the second explosion-proof threading device, and the head parts of the lead are exposed at the first explosion-proof threading device and the second explosion-proof threading device; the first explosion-proof threading device of the temperature measuring cable is arranged in the first explosion-proof hole, and the second explosion-proof threading device of the temperature measuring cable is arranged in the second explosion-proof hole. On the premise of ensuring the requirement of an explosion-proof structure, the utility model reduces the interference of a plurality of groups of flat cables when the temperature measuring wires are led out by bundling the temperature measuring leads, thereby improving the safety coefficient of the motor.
Description
Technical Field
The utility model relates to the technical field of temperature measurement lead connection of an explosion-proof asynchronous motor, in particular to a novel temperature measurement cable leading-out structure of an explosion-proof motor, which is particularly used in a high-efficiency motor with the center height of more than 132mm and needing to be provided with a plurality of temperature measurement devices.
Background
The explosion-proof asynchronous motor is widely applied to industries with explosive gas places such as coal, petroleum, chemical engineering and the like, and has very important significance in ensuring the reliability of continuous operation. For years, people monitor the running states of a winding and a bearing when a motor runs by summarizing the actual running condition of the motor, embedding a temperature measuring device in a three-phase winding of the motor and arranging a bearing for measuring temperature on a bearing of the motor, and taking automatic power-off or other measures to avoid the damage of the winding or the bearing of the motor according to information fed back from the temperature measuring device.
However, in this way, too many temperature measuring device leads can shuttle back and forth between the inner cavity of the motor and the inside of the junction box, and in the occasion with the requirement of the independent temperature measuring junction box, the temperature measuring leads have to pass through the main junction box from the inside of the motor and then be led into the independent junction box, so that the wire arrangement inside the main junction box of the motor is complicated, the lead wires are mutually wound, and the safety factor of the motor is reduced.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the utility model provides a novel explosion-proof motor temperature measurement cable leading-out structure, which reduces the interference of a plurality of groups of flat cables when temperature measurement wires are led out by bundling the temperature measurement leads on the premise of ensuring the requirement on the explosion-proof structure, thereby improving the safety coefficient of a motor.
The utility model adopts the following technical scheme:
a novel explosion-proof motor temperature measurement cable leading-out structure comprises a temperature measurement junction box, a motor main junction box base and a temperature measurement cable, wherein a preformed hole is formed in the middle of an insulating mounting plate at the bottom of the motor main junction box base, and a first explosion-proof hole is formed in the position, corresponding to the preformed hole, of a base plate of the motor main junction box base; the side wall of the temperature measuring junction box is provided with a second explosion-proof hole;
the temperature measuring cable comprises a cluster lead, two ends of the cluster lead are respectively connected with the first explosion-proof threading device and the second explosion-proof threading device, and the head parts of the lead are exposed at the first explosion-proof threading device and the second explosion-proof threading device;
the first explosion-proof threading device of the temperature measuring cable is arranged in the first explosion-proof hole, and the second explosion-proof threading device of the temperature measuring cable is arranged in the second explosion-proof hole.
Furthermore, the first explosion-proof hole is a threaded explosion-proof hole, and the first explosion-proof threading device is a threaded explosion-proof threading device which are installed in a matched mode.
Furthermore, the second explosion-proof hole is a cylindrical explosion-proof hole, and the second explosion-proof threading device is a cylindrical explosion-proof threading device which are installed in a matched mode and clamped through a clamping ring.
Furthermore, the snap ring is located in a groove in the side wall of the cylindrical explosion-proof hole, and a clamping groove is formed in the cylindrical explosion-proof threading device and corresponds to the snap ring.
Furthermore, the cluster lead is fixedly connected with the first explosion-proof threading device and the second explosion-proof threading device through glue seals.
Furthermore, the insulating mounting plate is provided with ring-shaped bosses respectively at the upper side and the lower side of the preformed hole.
The utility model has the beneficial effects that:
the utility model has simple structure and large space, leads the temperature measuring lead wires of the motor into the auxiliary junction box through the main junction box after being gathered by wiring in the explosion-proof motor, leads the wire arrangement of the motor to be simple, has simple and convenient assembly and greatly improves the safety factor, and the device is convenient to install and maintain, and does not influence the integral beauty of the motor on the premise of ensuring the explosion-proof performance of the motor.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic view of a temperature measuring cable according to the present invention;
FIG. 5 is a schematic cross-sectional view of the snap ring and the cylindrical explosion-proof threader in the utility model;
FIG. 6 is a longitudinal sectional schematic view of the snap ring and the cylindrical explosion-proof threading apparatus of the present invention.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 6, the embodiment provides a novel explosion-proof motor temperature measurement cable leading-out structure, which includes a temperature measurement junction box 1, a motor main junction box base 2 and a temperature measurement cable 4, wherein an insulating mounting plate 21 for mounting an insulating terminal is arranged at the bottom of the motor main junction box base 2, a preformed hole is arranged in the middle of the insulating mounting plate 21, and a first explosion-proof hole is arranged at a position, corresponding to the preformed hole, of a motor main junction box base bottom plate 22; and a second explosion-proof hole is formed in the side wall of the temperature measuring junction box 1.
The temperature measuring cable 4 comprises a bundling lead wire 40 (a multi-core cable), two ends of the bundling lead wire 40 are respectively connected with the first explosion-proof threading device 3 and the second explosion-proof threading device 5, and two ends of the bundling lead wire 40 are exposed out of the head of the lead wire at the first explosion-proof threading device 3 and the second explosion-proof threading device 5;
the first explosion-proof threading device 3 of the temperature measuring cable 4 is arranged in the first explosion-proof hole, and the second explosion-proof threading device 5 of the temperature measuring cable 4 is arranged in the second explosion-proof hole.
In this embodiment, main terminal box base bottom plate 22 of motor is the metal, and first explosion-proof hole is for boring the screw thread explosion-proof hole of attacking the formation at main terminal box base bottom plate 22 of motor, and first explosion-proof threading apparatus 3 is screw thread explosion-proof threading apparatus, and both cooperate the installation, form screw thread explosion-proof.
In this embodiment, the second explosion-proof hole is the cylinder explosion-proof hole, and the second explosion-proof threader is the cylinder explosion-proof threader, and both cooperate the installation and press from both sides tightly through snap ring 6, form plane explosion-proof. The snap ring 6 is positioned in a groove on the side wall of the cylindrical explosion-proof hole, and a clamping groove is arranged on the cylindrical explosion-proof threading device corresponding to the snap ring 6.
In this embodiment, the cluster lead 40 is fixedly connected with the first explosion-proof threading device 3 and the second explosion-proof threading device 5 through the rubber seal 41.
In this embodiment, the insulating mounting plate 21 is provided with ring-shaped bosses 23 on the upper and lower sides of the prepared hole, respectively, to ensure creepage distance.
In this embodiment, a threaded hole is formed in the box base of the temperature measuring junction box 1 for mounting the temperature measuring terminal strip.
The installation process of the utility model is as follows:
the middle of the threaded flame-proof threading device and the cylindrical flame-proof threading device is connected with a bundling lead wire 40 in advance and sealed by glue, the head parts of the lead wires are exposed at two ends, the threaded flame-proof threading device is screwed into the bottom of the box base during installation, the exposed lead wires are connected with a temperature measurement or vibration measurement line led out from the inside of the motor, then the cylindrical flame-proof threading device penetrates through a cylindrical explosion-proof hole in the side wall of the main junction box and is clamped by a snap ring, and finally the cylindrical flame-proof threading device is clamped after the temperature measurement junction box is installed and is connected to a terminal block in the temperature measurement junction box.
The thread explosion-proof threading device introduces a cable into the main junction box from the inside of the shell, and simultaneously ensures an explosion-proof structure; the cylindrical explosion-proof threading device penetrates out of the main junction box into the independent temperature measurement junction box, a cable is led into the auxiliary junction box, and an explosion-proof structure is guaranteed.
The utility model has simple structure and large space, leads the temperature measuring lead wires of the motor into the auxiliary junction box through the main junction box after being gathered by wiring in the explosion-proof motor, leads the wire arrangement of the motor to be simple, has simple and convenient assembly and greatly improves the safety factor, and the device is convenient to install and maintain, and does not influence the integral beauty of the motor on the premise of ensuring the explosion-proof performance of the motor.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the utility model and it is intended to cover in the claims the utility model as defined in the appended claims.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.
Claims (6)
1. The utility model provides a novel explosion-proof machine temperature measurement cable draw forth structure, includes temperature measurement terminal box, motor owner terminal box seat and temperature measurement cable, its characterized in that: a preformed hole is formed in the middle of the insulating mounting plate at the bottom of the main junction box base of the motor, and a first explosion-proof hole is formed in the position, corresponding to the preformed hole, of the base plate of the main junction box base of the motor; the side wall of the temperature measuring junction box is provided with a second explosion-proof hole;
the temperature measuring cable comprises a cluster lead, two ends of the cluster lead are respectively connected with the first explosion-proof threading device and the second explosion-proof threading device, and the head parts of the lead are exposed at the first explosion-proof threading device and the second explosion-proof threading device;
the first explosion-proof threading device of the temperature measuring cable is arranged in the first explosion-proof hole, and the second explosion-proof threading device of the temperature measuring cable is arranged in the second explosion-proof hole.
2. The novel explosion-proof machine temperature measurement cable leading-out structure of claim 1, characterized in that: the first explosion-proof hole is a threaded explosion-proof hole, and the first explosion-proof threading device is a threaded explosion-proof threading device which are installed in a matched mode.
3. The novel explosion-proof machine temperature measurement cable leading-out structure of claim 1, characterized in that: the second explosion-proof hole is a cylindrical explosion-proof hole, the second explosion-proof threading device is a cylindrical explosion-proof threading device, and the second explosion-proof threading device and the cylindrical explosion-proof threading device are installed in a matched mode and are clamped through a clamping ring.
4. The novel explosion-proof machine temperature measurement cable leading-out structure of claim 3, characterized in that: the snap ring is located in a groove in the side wall of the cylindrical explosion-proof hole, and a clamping groove is formed in the cylindrical explosion-proof threading device and corresponds to the snap ring.
5. The novel explosion-proof motor temperature measurement cable leading-out structure according to any one of claims 1 to 4, characterized in that: the cluster lead is fixedly connected with the first explosion-proof threading device and the second explosion-proof threading device through glue seals.
6. The novel explosion-proof machine temperature measurement cable leading-out structure of claim 1, characterized in that: and the insulating mounting plate is respectively provided with ring-shaped bosses at the upper side and the lower side of the preformed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122535239.7U CN216086358U (en) | 2021-10-21 | 2021-10-21 | Novel explosion-proof machine temperature measurement cable extraction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122535239.7U CN216086358U (en) | 2021-10-21 | 2021-10-21 | Novel explosion-proof machine temperature measurement cable extraction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216086358U true CN216086358U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122535239.7U Active CN216086358U (en) | 2021-10-21 | 2021-10-21 | Novel explosion-proof machine temperature measurement cable extraction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216086358U (en) |
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2021
- 2021-10-21 CN CN202122535239.7U patent/CN216086358U/en active Active
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