Conduction oil bearing heater

Abstract

The utility model relates to a heat conduction oil bearing heater which comprises an oil tank provided with a pick-and-place opening and containing heat conduction oil. The temperature sensor is used for measuring the temperature of the heat conduction oil; the heating piece is soaked in the heat conduction oil and is used for heating the heat conduction oil; the movable frame is provided with an infiltrating part and a holding part connected with the infiltrating part, the movable frame is placed on the oil tank, the infiltrating part bears a heated body and is infiltrated in the heat conduction oil, and the holding part is located outside the oil tank; by arranging the oil tank, the temperature sensor, the heating piece and the movable frame, the large-inner-diameter bearing can be uniformly and fully heated, the bearing structure is prevented from being damaged, the bearing is convenient to take and place, and the working intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing heating, in particular to a heat-conducting oil bearing heater. Background Art

[0002] In the maintenance activities of factory equipment, mechanical maintenance personnel often carry out maintenance operations such as bearing replacement and heating. Small bearings can be heated with professional bearing heaters, while large bearings are usually placed in a temporary box filled with heat transfer oil or heated with a drying gun flame in order to fully heat them. The whole process is time-consuming and labor-intensive, with high work intensity and inconvenient operation. At present, the common bearing heaters on the market are magnetic induction eddy current heaters. The maximum inner diameter of the bearing that can be heated is 400mm. There are no professional heaters matching bearings with larger inner diameters on the market. They can only be heated with oil or flames. However, this method has the following technical problems: first, the temperature cannot be effectively controlled, and excessively high heating temperature will cause bearing annealing; second, uneven heating will cause bearing deformation and damage. Therefore, it is very important to design a heater that can effectively heat bearings with large inner diameters. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the problem that the heater in the prior art cannot sufficiently and evenly heat the large inner diameter bearing, and then provide a thermal oil bearing heater that can uniformly and fully heat the large inner diameter bearing to avoid damage to the bearing structure.

[0004] In order to solve the above technical problems, the utility model provides a thermal oil bearing heater, comprising:

[0005] An oil tank, which is provided with a take-in and put-out port and contains heat transfer oil;

[0006] A temperature sensor, used to measure the temperature of the thermal oil;

[0007] A heating element, which is immersed in the heat transfer oil and used to heat the heat transfer oil;

[0008] A movable frame is provided with a wetting portion and a holding portion connected to the wetting portion, wherein the movable frame is placed on the oil tank, wherein the wetting portion carries the heated body and is immersed in the heat transfer oil, and the holding portion is located outside the oil tank.

[0009] In one embodiment of the utility model, an oil drain valve is provided at the bottom of the oil tank.

[0010] In one embodiment of the utility model, the oil tank is provided with a push handle and a plurality of rollers.

[0011] In one embodiment of the present invention, a temperature controller is further included, and the temperature controller is electrically connected to the heating element and the temperature sensor.

[0012] In one embodiment of the utility model, the push handle is provided with a panel, the temperature controller is fixed on the panel, and the wires of the temperature controller are arranged inside the push handle.

[0013] In one embodiment of the present invention, it also includes a screen that is horizontally arranged in the oil tank and located in the heat transfer oil, and the screen is located below the movable frame.

[0014] In one embodiment of the utility model, the wetting part is provided with a plurality of bearing strip support blocks and a movable frame base, wherein the movable frame base is welded to the movable frame and placed on the screen, a plurality of the bearing strip support blocks are placed on the movable frame, and the heating element is placed on the plurality of the bearing strip support blocks.

[0015] In one embodiment of the present invention, a heating element bracket is further included, and the heating element bracket supports the heating element.

[0016] In one embodiment of the utility model, the heating element is configured as an electric heating tube, the electric heating tube passes through the middle of the oil tank and is inserted into the heat transfer oil, and is sealed by a sealing insulating gasket.

[0017] In one embodiment of the utility model, the temperature sensor passes through the middle of the oil tank and is inserted into the heat transfer oil and is located above the electric heating pipe and is sealed by a sealing insulating gasket.

[0018] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0019] The thermal oil bearing heater described in the utility model is provided with an oil tank for containing thermal oil, so that the thermal oil fully infiltrates the bearing and the bearing with a large inner diameter is fully heated; the temperature of the thermal oil is detected by a temperature sensor, and the heating element is adjusted in time to effectively control the temperature of the thermal oil and avoid excessive heating damage to the bearing; and a movable frame is provided to facilitate taking out the bearing with a large inner diameter, thereby reducing the work intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0021] Figure 1 It is a schematic diagram of the structure of the thermal oil bearing heater in the preferred embodiment of the utility model.

[0022] Explanation of the reference numerals in the drawings in the specification: 1. oil tank; 2. roller; 3. heating element bracket; 4. oil drain valve; 5. sealing insulation pad; 6. screen; 7. screen support frame; 8. heating element; 9. temperature sensor; 10. movable frame; 11. bearing; 12. bearing strip support block; 13. movable frame base; 14. grip; 15. push handle; 16. temperature controller; 17. thermal oil. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] Example

[0025] Reference Figure 1 As shown, in one embodiment of the utility model, a thermal oil bearing heater includes:

[0026] The oil tank 1 is provided with a take-in and take-out port and contains heat-conducting oil 17. The heat-conducting oil 17 can reach three quarters of the capacity of the oil tank 1. The bearing 11 is put into or taken out of the oil tank 1 through the take-in and take-out port. The oil tank 1 is also provided with a cover matching the take-in and take-out port to reduce the heat loss of the heat-conducting oil 17. The heat-conducting oil 17 is preferably synthetic heat-conducting oil 17. The oil tank 1 can be set to a square structure or a circular structure. The diameter of the oil tank 1 is greater than 400 mm.

[0027] A temperature sensor 9 is used to measure the temperature of the heat transfer oil 17, so that the operator can obtain the temperature of the heat transfer oil 17 in real time and then control the temperature of the heat transfer oil 17. The temperature sensor 9 is provided with a high temperature resistant structure;

[0028] A heating element 8, which is immersed in the heat transfer oil 17 and used to heat the heat transfer oil 17, and the heating element 8 extends into the oil tank 1;

[0029] The movable frame 10 is provided with a wetting portion and two holding portions 14 connecting the two sides of the wetting portion. The movable frame 10 is placed on the edge of the oil tank 1 through the vertical connection between the holding portion 14 and the wetting portion, wherein the wetting portion carries the heated body and is immersed in the heat transfer oil 17. The holding portion 14 is located outside the oil tank 1. The operator grabs the holding portion 14 to lift the bearing 11 and the movable frame 10 from the oil tank 1. The holding portion 14 is covered with nylon to prevent the temperature of the movable frame 10 from rising and scalding the operator's hand. The movable frame 10 is set to a "bow" shape structure, the middle part of the "bow" shape structure is the wetting portion, the two ends of the "bow" shape structure are the holding portions, the middle part is inserted into the heat transfer oil 17 of the oil tank 1, and the two sides are against the edge of the oil tank 1. The movable frame 10 is made of metal with relatively high hardness and relatively low weight.

[0030] In one embodiment of the present invention, referring to Figure 1 As shown, an oil drain valve 4 is provided at the bottom of the oil tank 1 , and when it is necessary to replace the heat transfer oil 17 with new one or clean the oil tank 1 , the heat transfer oil 17 in the oil tank 1 can be drained.

[0031] In one embodiment of the present invention, referring to Figure 1 As shown, the oil tank 1 is provided with a push handle 14 and four rollers 2, which facilitate pushing the heat transfer oil 17 bearing 11 heater to a nearby operation position, wherein the push handle 14 is located above the temperature sensor 9.

[0032] In one embodiment of the present invention, referring to Figure 1 As shown, it also includes a PLC temperature controller 16, which is electrically connected to the heating element 8 and the temperature sensor 9. The PLC temperature controller 16 can set and display the current temperature of the bearing 11. The PLC temperature controller 16 can also heat up and keep the temperature in stages, and the heating and keeping time of each stage can be set separately.

[0033] In one embodiment of the present invention, referring to Figure 1 As shown, the push handle 14 is provided with a panel, on which the temperature controller 16 is fixed, and the panel is at a distance from the oil tank 1 to prevent the temperature controller 16 from being burned by the high temperature of the heat transfer oil 17. The push handle 14 is configured as a U-shaped round hole tube to facilitate pushing the oil tank 1, and the wires of the temperature controller 16 are arranged in the round hole inside the push handle 14.

[0034] In one embodiment of the present invention, referring to Figure 1 As shown, it also includes a stainless steel screen 6 horizontally arranged in the oil tank 1 and located in the heat transfer oil 17. The thickness of the screen 6 is within the range of 2 to 3 mm, the mesh diameter is about 8 to 12 mm, and the mesh density is moderate. The screen 6 is movably arranged in the oil tank 1 through a ring screen support frame 7. The screen 6 is located below the movable frame 10. The screen 6 prevents the bearing 11 from rolling from the movable frame 10 to the bottom of the oil tank 1.

[0035] In one embodiment of the present invention, referring to Figure 1 As shown, the infiltration part is provided with a plurality of bearing strip support blocks 12 and a movable frame base 13, and the plurality of bearing strip support blocks 12 are arranged in parallel with a spacing between 100 and 150 mm, wherein the movable frame base 13 is welded to the movable frame 10 and placed on the screen 6, and the plurality of bearing strip support blocks 12 are placed on the movable frame 10, and the heating element 8 is placed on the plurality of bearing strip support blocks 12. Specifically, one heating element 8 is jointly supported by a plurality of bearing strip support blocks 12, so that the operator can conveniently take and place the bearing 11.

[0036] In one embodiment of the present invention, referring to Figure 1 As shown, since the heating element 8 is large in size and long in length, a heating element bracket 3 is also included, which supports the middle part of the heating element 8 to prevent the heating element 8 from being damaged due to uneven force when the oil tank 1 moves, and also to prevent the heating element bracket 3 from being directly attached to the bottom of the oil tank 1.

[0037] In one embodiment of the present invention, referring to Figure 1 As shown, the heating element 8 is configured as an electric heating tube, one end of the electric heating tube horizontally passes through the through hole in the middle of the oil tank 1 and is inserted into the heat transfer oil 17, and the other end is arranged outside the oil tank 1 and electrically connected to the temperature controller 16, and the through hole is sealed by a sealing insulating pad 5 to prevent leakage of the heat transfer oil 17, and prevent leakage of electricity or oil.

[0038] In one embodiment of the present invention, referring to Figure 1 As shown, the temperature sensor 9 horizontally passes through the through hole in the middle of the oil tank 1 and is inserted into the heat-conducting oil 17 and is located above the electric heating pipe, and is sealed by a sealing insulating pad 5 to prevent leakage of the heat-conducting oil 17 and prevent leakage of electricity.

[0039] The working principle of the thermal oil bearing heater described in the utility model is:

[0040] The bearing 11 to be heated is placed on the bearing strip support block 12 of the movable frame 10. Two operators hold the holding parts 14 at both ends of the movable frame 10 and lift them up. The wetted part of the movable frame 10 and the bearing 11 are immersed in the heat transfer oil 17, and the holding parts 14 are against the side of the oil tank 1. Then the operator sets the temperature and heating time through the temperature controller 16 and turns on the heating element 8. The heating element 8 starts to heat the heat transfer oil 17 and the bearing 11. After the heating is completed, the temperature controller 16 automatically turns off the heating element 8. The two operators lift the movable frame 10 out of the oil tank 1 and remove the bearing 11. During the heating process, when the temperature sensor 9 detects that the temperature of the heat transfer oil 17 is greater than the predetermined temperature, the temperature controller 16 reduces the heating power of the heating element 8, so that the temperature of the heat transfer oil 17 and the bearing 11 drops. At the same time, the operator can adjust the heating element 8 to enter the insulation state through the temperature controller 16 to save electricity.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A thermal oil bearing heater, characterized in that: include, An oil tank, which is provided with a take-in and put-out port and contains heat transfer oil; A temperature sensor, used to measure the temperature of the thermal oil; A heating element, which is immersed in the heat transfer oil and used to heat the heat transfer oil; A movable frame, which is provided with an immersion part and a gripping part connected to the immersion part, the movable frame is placed on the oil tank, wherein the immersion part carries the heated body and is immersed in the heat transfer oil, and the gripping part is located outside the oil tank; It also includes a screen horizontally arranged in the oil tank and located in the heat transfer oil, wherein the screen is located below the movable frame; The infiltration part is provided with a plurality of bearing strip support blocks and a movable frame base, wherein the movable frame base is welded to the movable frame and placed on the screen, the plurality of bearing strip support blocks are placed on the movable frame, and the heating element is placed on the plurality of bearing strip support blocks.

2. A thermal oil bearing heater according to claim 1, characterized in that: An oil drain valve is arranged at the bottom of the oil tank.

3. A thermal oil bearing heater according to claim 1, characterized in that: The oil tank is provided with a push handle and a plurality of rollers.

4. A thermal oil bearing heater according to claim 3, characterized in that: It also includes a temperature controller, which is electrically connected to the heating element and the temperature sensor.

5. A thermal oil bearing heater according to claim 4, characterized in that: The push handle is provided with a panel, the temperature controller is fixed on the panel, and the wires of the temperature controller are arranged inside the push handle.

6. The thermal oil bearing heater according to claim 1, characterized in that: A heating element bracket is also included, and the heating element bracket supports the heating element.

7. The thermal oil bearing heater according to claim 1, characterized in that: The heating element is configured as an electric heating tube, which passes through the middle of the oil tank and is inserted into the heat-conducting oil and is sealed by a sealing insulating pad.

8. The thermal oil bearing heater according to claim 7, characterized in that: The temperature sensor passes through the middle of the oil tank and is inserted into the heat-conducting oil and is located above the electric heating pipe and is sealed by a sealing insulating pad.

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