Heat dissipation device of motor front end bearing

Abstract

The utility model discloses a heat dissipation device of a motor front end bearing, which comprises a machine body, an output shaft, a fixing sleeve, a quick connecting mechanism, a ventilation heat dissipation mechanism and an anti-drop mechanism, the quick connecting mechanism comprises a connecting sleeve, a connecting block, a clamping block and a first spring, and the ventilation heat dissipation mechanism comprises a first turbine, a fixing frame, a flat key and a second turbine. The anti-falling mechanism comprises a movable sleeve, a short rod, a second spring, a through rod and a special-shaped clamping pin, the quick connecting mechanism simplifies the installation process and reduces the cost of maintaining and replacing the bearing, and the ventilation and heat dissipation mechanism enables the device to dissipate heat of the interior of the device while dissipating heat of the front end bearing, so that the device is well protected, and the service life of the device is prolonged. And finally, the device can be more stably installed on the machine body through the anti-falling mechanism, and normal operation of heat dissipation work is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of motor heat dissipation, in particular to a heat dissipation device for a front end bearing of a motor. Background Art

[0002] Electric motors that run for a long time will generate a lot of heat. If the heat is not dissipated in time, the bearings may suffer thermal damage due to excessive temperature, such as degradation, discoloration or structural deformation. In addition, the lubricating oil of the bearings will age rapidly at excessively high temperatures and lose its lubricating effect, resulting in increased bearing wear.

[0003] The heat dissipation of the front bearing often requires frequent maintenance. In the past, most of the installations were connected by bolts, which were difficult to disassemble, and even more difficult to replace in a narrow space such as the output shaft. The quick installation design simplifies the installation process and reduces the need for professional tools and expertise, thereby reducing the cost of repairing and replacing bearings.

[0004] Secondly, there is the requirement for heat dissipation. There are many ways to dissipate heat, but air cooling is the best when used at the front end bearing of the motor. After the device is installed, not only the front end bearing needs to be cooled and dissipated, but also the inside of the device installed on the output shaft needs to be cooled.

[0005] Finally, electric motors tend to generate continuous vibrations when operating, and the continuation of vibrations can easily lead to disconnection of the device connections and damage to other components of the device. Summary of the invention

[0006] In view of the deficiencies of the prior art, the utility model provides a heat dissipation device for a front end bearing of a motor.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation device for the front end bearing of an electric motor, comprising a body, an output shaft, a fixed sleeve, a quick connection mechanism, a ventilation and heat dissipation mechanism and an anti-falling mechanism, the quick connection mechanism comprising a connecting sleeve, a connecting block, a clamping block and a first spring, the connecting sleeve is movably connected to the fixed sleeve, the connecting block is installed inside the connecting sleeve and is slidably connected to the connecting sleeve, the clamping block is rotatably connected to the connecting sleeve, the two ends of the first spring are respectively fixedly connected to the connecting block and the clamping block, the ventilation and heat dissipation mechanism comprises a first turbine, a fixing frame, a flat key and a second turbine, the first turbine is rotatably connected to the connecting sleeve, the fixing frame is detachably connected to the first turbine, the flat key is installed between the first turbine and the output shaft and is detachably connected, and the second turbine is installed inside the fixing sleeve and is rotatably connected between the fixing sleeve.

[0008] Preferably, the anti-falling mechanism includes a movable sleeve, a short rod, a second spring, a through rod and a special-shaped pin. The fixed sleeve is fixedly connected to the machine body, the movable sleeve is rotatably connected to the fixed sleeve, the short rod is fixedly mounted on the connecting block, and the short rod slides inside the movable sleeve, the second spring and the through rod are all fixedly mounted on the movable sleeve, the special-shaped pin is mounted on the through rod and slides inside the movable sleeve, and one end of the special-shaped pin is fixedly connected to one end of the second spring.

[0009] It is further preferred that the connecting sleeve is provided with a special-shaped groove and a first slide groove, the special-shaped pin slides inside the special-shaped groove, the first turbine slides inside the first slide groove, and multiple sets of pulleys are installed inside the first slide groove to reduce the heat generated by friction when the first turbine rotates.

[0010] It is further preferred that the first turbine is provided with ventilation slots, air scoops and spoilers, the ventilation slots are provided in multiple groups and are spiral in shape, the air scoops are fixedly mounted on the bottom end of the first turbine, and the spoiler is mounted on the top end of the first turbine to facilitate the operation of the heat dissipation and ventilation device.

[0011] In a further preferred embodiment, the two ends of the ventilation slot are divided into a vent and an air outlet, the wind-shaking plate is installed at the vent, and the spoiler is installed at the air outlet, so as to facilitate the rapid transfer of heat and disturb the air with heat to quickly contact with the outside air to complete the heat exchange.

[0012] It is further preferred that a clamping hole is provided inside the connecting sleeve, and the clamping block is detachably connected to the clamping hole, so as to facilitate the quick connection of the device.

[0013] It is further preferred that a second slide groove is provided inside the movable sleeve, the second slide groove is spiral in shape, and the second slide groove is located from the inner wall to the outer wall, and the short rod slides inside the second slide groove to facilitate lifting the connecting block.

[0014] In a further preferred embodiment, an air inlet is formed at one end of the fixed sleeve, and the second turbine is installed at the air inlet and rotates inside the air inlet to collect heat from the front bearing of the motor.

[0015] Compared with the prior art, the utility model provides a heat dissipation device for the front end bearing of a motor, which has the following beneficial effects:

[0016] The utility model simplifies the installation process by providing a quick connection mechanism and cooperating components such as a connecting sleeve, a connecting block, a clamping block and a first spring, reduces the need for professional tools and expertise, and thus reduces the cost of repairing and replacing bearings.

[0017] In the utility model, a ventilation and heat dissipation mechanism is provided, and with the cooperation of the first turbine, the fixing frame, the flat key and the second turbine and other components, the device can dissipate heat from the front end bearing and the inside of the device at the same time, thereby protecting the device.

[0018] In the utility model, an anti-drop mechanism is provided, and the movable sleeve, the short rod, the second spring, the through rod and the special-shaped bayonet are matched and connected, so that the device can be more stably installed on the machine body, thereby ensuring the normal operation of the heat dissipation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a heat dissipation device for a front end bearing of an electric motor in the utility model;

[0020] Figure 2 This is an exploded view of the overall structure of the utility model;

[0021] Figure 3 for Figure 2 Partial view of center A;

[0022] Figure 4 This is a cross-sectional view of the first turbine of the utility model;

[0023] Figure 5 This is a structural view of the anti-falling mechanism of the utility model;

[0024] Figure 6 It is a cross-sectional view of the anti-falling mechanism of the utility model.

[0025] In the figure: 1, machine body; 2, output shaft; 3, fixing sleeve; 4, connecting sleeve; 5, connecting block; 6, clamping block; 7, first spring; 8, first turbine; 9, fixing frame; 10, flat key; 11, second turbine; 12, movable sleeve; 13, short rod; 14, second spring; 15, through rod; 16, special-shaped bayonet pin; 17, special-shaped slot; 18, first slide slot; 19, pulley; 20, ventilation slot; 21, wind board; 22, spoiler; 23, ventilation port; 24, air outlet; 25, clamping hole; 26, second slide slot; 27, air inlet. DETAILED DESCRIPTION

[0026] 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.

[0027] Example 1

[0028] See also Figure 1-6 , a heat dissipation device for a front end bearing of a motor comprises a body, an output shaft, a fixing sleeve, a quick connection mechanism, a ventilation and heat dissipation mechanism and an anti-falling mechanism, the quick connection mechanism comprises a connecting sleeve, a connecting block, a clamping block and a first spring, the connecting sleeve is movably connected to the fixing sleeve, the connecting block is installed inside the connecting sleeve and is slidably connected to the connecting sleeve, the clamping block is rotatably connected to the connecting sleeve, and the two ends of the first spring are respectively fixedly connected to the connecting block and the clamping block, the ventilation and heat dissipation mechanism comprises a first turbine, a fixing frame, a flat key and a second turbine, the first turbine is rotatably connected to the connecting sleeve, the fixing frame is detachably connected to the first turbine, the flat key is installed between the first turbine and the output shaft and is detachably connected, and the second turbine is installed inside the fixing sleeve and is rotatably connected between the fixing sleeve.

[0029] In this embodiment, the quick connection mechanism includes a connecting sleeve, a connecting block, a clamping block and a first spring. When in use, the connecting sleeve is inserted into the fixed sleeve. During this process, the connecting block is fixed in position by the action of the movable sleeve. Under the pressure of the outer wall of the connecting sleeve, the position of the clamping block changes, and the first spring fixedly connected to the clamping block and the connecting block begins to be compressed. When the connecting sleeve completely enters the fixed sleeve, the connecting sleeve is rotated, and the clamping hole on the connecting sleeve contacts the clamping block, so that the clamping block enters the clamping hole. At this time, due to the shape characteristics of the clamping hole and the clamping block, the connecting sleeve and the fixed sleeve are clamped, thereby completing the quick connection clamping.

[0030] In this embodiment, the ventilation and heat dissipation mechanism includes a first turbine, a fixing frame, a flat key and a second turbine. When in use, the fixing frame is inserted into the first turbine, and then the flat key is placed in the common gap between the fixing frame and the output shaft. At this time, the output shaft and the fixing frame are mechanically connected, and the fixing frame is connected to the first turbine. When the output shaft starts to rotate, the first turbine rotates accordingly. At this time, the turbine installed inside the first slide groove contacts the roller. Under the action of the rotation of the roller, the friction is reduced, and the air scoop plate of the ventilation port of the first turbine brings the high-temperature air inside the connecting sleeve into the ventilation groove while rotating. With the rotation of the first turbine, the high-temperature air in the ventilation groove is discharged into the air outlet, and then the heat distribution is disrupted by the spoiler, and it is quickly dissipated in the air to exchange heat. In this process, the second turbine out of the air inlet is discharged with the internal air, and under the action of atmospheric pressure, the air located at the front bearing of the body and the heat in the air enter the fixed sleeve through the air inlet plate and the second turbine, and are transferred to the connecting sleeve.

[0031] In this embodiment, the anti-falling mechanism includes a movable sleeve, a short rod, a second spring, a through rod and a special-shaped pin. During use, when the machine body vibrates during operation, the movable sleeve may rotate. At this time, the connecting block fixedly connected to the short rod may be deformed when the short rod rotates from the second slide groove, thereby causing the clamping block to disengage from the clamping hole, and then causing the connecting sleeve to disengage from the fixed sleeve. For this reason, we align the special-shaped pin with the special-shaped slot. Under the action of the second spring, the special-shaped pin is inserted into the special-shaped slot on the movable sleeve, and the through rod serves to limit the sliding of the special-shaped pin and the deformation of the spring. When the special-shaped pin enters the special-shaped slot, the rotation of the movable sleeve is restricted.

[0032] Example 2

[0033] To sum up, when in use, first install the movable sleeve inside the fixed sleeve, then insert the connecting sleeve into the fixed sleeve, during this process, the connecting block is fixed in position by the action of the movable sleeve, under the pressure of the outer wall of the connecting sleeve, the position of the clamping block changes, and the first spring fixedly connected to the clamping block and the connecting block begins to be compressed. When the connecting sleeve completely enters the fixed sleeve, the connecting sleeve is rotated, and the clamping hole on the connecting sleeve contacts the clamping block, so that the clamping block enters the clamping hole. At this time, due to the shape characteristics of the clamping hole and the clamping block, the connecting sleeve and the fixed sleeve are clamped, thereby completing the quick connection and clamping. At this time, insert the fixing frame into the first turbine, and then put the flat key The output shaft and the fixed frame are mechanically connected, and the fixed frame is connected to the first turbine. When the output shaft starts to rotate, the first turbine rotates accordingly. At this time, the turbine installed in the first slide groove contacts the roller. The friction is reduced under the action of the roller rotation, and the scoop plate of the vent of the first turbine brings the high-temperature air inside the connecting sleeve into the ventilation groove while rotating. With the rotation of the first turbine, the high-temperature air in the ventilation groove is discharged into the air outlet, and then the heat distribution is disrupted by the spoiler, and it is quickly dissipated in the air to exchange heat. In this process, the second turbine coming out of the air inlet is blown away by the internal air. Exhaust, under the action of atmospheric pressure, the air at the front bearing of the machine body and the heat in the air enter the fixed sleeve through the air inlet plate and the second turbine, and are transmitted to the connecting sleeve. At the same time, in order to avoid the vibration generated when the machine body is running, the movable sleeve may rotate. At this time, the connecting block fixedly connected to the short rod may change its position when the short rod rotates from the second slide groove, thereby causing the clamping block to disengage from the clamping, and then causing the connecting sleeve to disengage from the fixed sleeve hole. For this reason, we align the special-shaped bayonet pin with the special-shaped slot. Under the action of the second spring, the special-shaped bayonet pin is inserted into the special-shaped slot on the movable sleeve, and the through rod plays a role in sliding the special-shaped bayonet pin. The function of limiting the position and limiting the spring deformation is that when the special-shaped bayonet pin enters the special-shaped slot, the rotation of the movable sleeve is restricted. In the subsequent use, if the connecting sleeve and the components installed on the connecting sleeve are damaged and need to be replaced, the flat key is taken out, and then the connecting frame is pulled out, and then the special-shaped bayonet pin is separated from the special-shaped slot, and then the movable sleeve is rotated, and the short rod slides inside the second slide groove, and the position changes, thereby lifting the connecting block. In this process, the clamping block is separated from the clamping hole, so that the connecting sleeve is no longer fixed. At this time, the connecting sleeve is taken out for replacement. Finally, in this device, the materials of the fixed sleeve and the connecting sleeve are all made of materials with good thermal conductivity.

[0034] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A heat dissipation device for a front end bearing of an electric motor, comprising a body (1), an output shaft (2), a fixing sleeve (3), a quick connection mechanism, a ventilation and heat dissipation mechanism and an anti-drop mechanism, characterized in that: The quick connection mechanism comprises a connection sleeve (4), a connection block (5), a clamping block (6) and a first spring (7); the connection sleeve (4) is movably connected to the fixed sleeve (3); the connection block (5) is mounted inside the connection sleeve (4) and is slidably connected to the connection sleeve (4); the clamping block (6) is rotationally connected to the connection sleeve (4); two ends of the first spring (7) are respectively fixedly connected to the connection block (5) and the clamping block (6); the ventilation and heat dissipation mechanism comprises a first turbine (8), a fixing frame (9), a flat key (10) and a second turbine (11); the first turbine (8) is rotationally connected to the connection sleeve (4); the fixing frame (9) and the first turbine (8) are detachably connected; the flat key (10) is mounted between the first turbine (8) and the output shaft (2) and is detachably connected; and the second turbine (11) is mounted inside the fixing sleeve (3) and is rotationally connected to the fixing sleeve (3).

2. The heat dissipation device for the front end bearing of a motor according to claim 1, characterized in that: The anti-falling mechanism comprises a movable sleeve (12), a short rod (13), a second spring (14), a through rod (15) and a special-shaped bayonet (16); the fixed sleeve (3) is fixedly connected to the machine body (1); the movable sleeve (12) is rotatably connected to the fixed sleeve (3); the short rod (13) is fixedly mounted on the connecting block (5), and the short rod (13) slides inside the movable sleeve (12); the second spring (14) and the through rod (15) are all fixedly mounted on the movable sleeve (12); the special-shaped bayonet (16) is mounted on the through rod (15) and slides inside the movable sleeve (12); and one end of the special-shaped bayonet (16) is fixedly connected to one end of the second spring (14).

3. The heat dissipation device for the front end bearing of a motor according to claim 2, characterized in that: The connecting sleeve (4) is provided with a special-shaped card slot (17) and a first slide slot (18); the special-shaped card pin (16) slides inside the special-shaped card slot (17); the first turbine (8) slides inside the first slide slot (18); and a plurality of pulleys (19) are installed inside the first slide slot (18).

4. The heat dissipation device for the front end bearing of a motor according to claim 1, characterized in that: The first turbine (8) is provided with a ventilation slot (20), a wind-blowing plate (21) and a spoiler (22); the ventilation slot (20) is provided in a plurality of groups and is in a spiral shape; the wind-blowing plate (21) is fixedly mounted on the bottom end of the first turbine (8); and the spoiler (22) is mounted on the top end of the first turbine (8).

5. The heat dissipation device for the front end bearing of a motor according to claim 4, characterized in that: The two ends of the ventilation slot (20) are divided into a ventilation port (23) and an air outlet (24); the air scoop plate (21) is installed at the ventilation port (23); and the spoiler plate (22) is installed at the air outlet (24).

6. The heat dissipation device for the front end bearing of a motor according to claim 1, characterized in that: A clamping hole (25) is provided inside the connecting sleeve (4), and the clamping block (6) is detachably connected to the clamping hole (25).

7. The heat dissipation device for the front end bearing of a motor according to claim 2, characterized in that: A second slide groove (26) is provided inside the movable sleeve (12). The second slide groove (26) is spiral in shape and is located from the inner wall to the outer wall. The short rod (13) slides inside the second slide groove (26).

8. The heat dissipation device for the front end bearing of a motor according to claim 1, characterized in that: An air inlet (27) is formed at one end of the fixed sleeve (3), and the second turbine (11) is mounted at the air inlet (27) and rotates inside the air inlet (27).

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