Inner cooling type bearing seat

Abstract

The utility model discloses an internal cooling type bearing seat which comprises a front bearing seat and a rear bearing seat, the front bearing seat and the rear bearing seat are arranged at the two ends of a lead screw respectively, and cooling assemblies used in cooperation with an external cooling liquid circulation system are arranged on the front bearing seat and the rear bearing seat. The cooling assembly comprises water channels, water tanks A, water tanks B and liquid passing openings, the water channels are arranged in the front bearing seat and the rear bearing seat respectively, the water tanks A and the water tanks B are arranged on the front bearing seat and the rear bearing seat respectively, and the water channels, the water tanks A and the water tanks B are arranged in a one-to-one correspondence mode; the cooling assembly is used in cooperation with the external cooling liquid circulation system, so that cooling liquid circulates in the cooling assembly, heat of the bearing can be evenly taken away, the temperature of the front bearing seat and the temperature of the rear bearing seat are effectively maintained, precise control over the running temperature of the bearing is achieved, and the bearing has the advantages of being compact in structure and convenient to maintain; and the heat dissipation requirements of the bearing under high-rotating-speed and heavy-load working conditions are particularly met.

Description

Technical Field

[0001] This utility model relates to the field of bearing housing technology, and in particular to an internally cooled bearing housing. Background Technology

[0002] Slewing bearing housings are large and extra-large bearing housings with special construction that can withstand comprehensive loads. They are characterized by their compact structure, smooth rotation, and convenient installation and maintenance. Where there is a bearing, there must be a support point. The internal support point of the bearing is the shaft, and the external support is what is commonly referred to as the bearing housing.

[0003] Under high-speed and heavy-load conditions, the support bearing of the machine tool lead screw generates a lot of heat, which can easily cause deformation, affecting accuracy and lifespan. The heat from the bearing is transferred to the lead screw, which in turn affects the dimensional accuracy of the lead screw and consequently the accuracy of the machine tool.

[0004] Therefore, an internally cooled bearing housing is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an internally cooled bearing housing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] An internally cooled bearing housing includes a front bearing housing and a rear bearing housing, which are respectively located at both ends of a lead screw. Both the front and rear bearing housings are provided with cooling components that cooperate with an external coolant circulation system.

[0008] The cooling assembly includes a water channel, a water tank A, a water tank B, and a liquid inlet. The water channel, water tank A, water tank B, and liquid inlet are respectively provided in a set in the front bearing housing and the rear bearing housing, and the water channel, water tank A, and water tank B are arranged in a one-to-one correspondence. Each set of liquid inlets has two liquid inlets, one of which is a liquid inlet and the other is a liquid outlet.

[0009] As a preferred technical solution, the front bearing housing includes a housing A, and pressure caps A and B are respectively installed on both sides of the housing A. One set of water channels and liquid inlets are opened on the housing A. One set of water tanks A is opened on the side of pressure cap A facing the housing A, and one set of water tanks B is opened on the side of pressure cap B facing the housing A.

[0010] As a preferred technical solution, the rear bearing housing includes a housing B arranged opposite to the housing A. A pressure cap C and a pressure cap D are respectively installed on both sides of the housing B. Another set of water channels and liquid inlets are opened on the housing B. Another set of water tanks A is opened on the side of the pressure cap C facing the housing B, and another set of water tanks B is opened on the side of the pressure cap D facing the housing B.

[0011] As a preferred technical solution, the pressure caps A and C, and pressure caps B and D have the same shape and structural dimensions. The central axes of the inner holes of the base A, pressure cap A, pressure cap B, base B, pressure cap C, and pressure cap D are on the same straight line. The water channel is arranged parallel to the central axis of the inner hole of the base A.

[0012] As a preferred technical solution, each group of water channels has multiple channels distributed in a ring at equal intervals on the seat A and seat B, each group of water tanks A has multiple channels distributed in a ring at equal intervals on the pressure cap A and pressure cap C, and each group of water tanks B has multiple channels distributed in a ring at equal intervals on the pressure cap B and pressure cap C.

[0013] As a preferred technical solution, the number of water channels in each group is twice that of each group of water tanks B, the number of water tanks A in each group is one less than that in each group of water tanks B, and the water tanks A in each group are staggered with each group of water tanks B.

[0014] As a preferred technical solution, the two ends of the waterway are respectively connected to the corresponding water tank A and water tank B, and the liquid inlet is respectively connected to two adjacent waterways, forming a disc-shaped channel between the waterway, water tank A, water tank B and liquid inlet.

[0015] As a preferred technical solution, the water tank A and water tank B have the same shape and structural dimensions. Both water tank A and water tank B include groove A and groove B. Groove A and groove B are respectively opened on pressure cap A, pressure cap B, pressure cap C and pressure cap D. One side of the inner cavity of groove A is connected to groove B, and the other side of the inner cavity of groove A is connected to the corresponding water channel. A stepped surface is formed between groove A and groove B.

[0016] This utility model has at least the following beneficial effects:

[0017] This application mainly consists of a front bearing housing, a rear bearing housing, and a cooling assembly. By using the cooling assembly in conjunction with an external coolant circulation system, the coolant circulates within the cooling assembly, thereby uniformly removing heat from the bearing and effectively maintaining the temperature of the front and rear bearing housings. This achieves precise control of the bearing operating temperature and features a compact structure and convenient maintenance. It is especially suitable for bearing heat dissipation needs under high-speed and heavy-load conditions. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the assembly structure of the internally cooled bearing housing and the lead screw of this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the assembly structure of the internally cooled bearing housing and the lead screw of this utility model. Figure 2 ;

[0020] Figure 3 This is a schematic cross-sectional view of the front bearing housing and cooling assembly of this utility model;

[0021] Figure 4 This is a side sectional view of the structure of the front bearing housing and cooling assembly of this utility model;

[0022] Figure 5 This is a schematic cross-sectional view of the rear bearing housing and cooling assembly of this utility model;

[0023] Figure 6 This is a side sectional view of the structure of the rear bearing housing and cooling assembly of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the pressure cap A and the water tank A of this utility model;

[0025] Figure 8 This is a side view of the structure of the pressure cap A and the water tank A of this utility model;

[0026] Figure 9 This is a side view schematic diagram of the structure of the pressure cap B and the water tank B of this utility model;

[0027] Figure 10 This is a schematic diagram illustrating the application of the internally cooled bearing housing, lead screw, and external coolant circulation system of this utility model.

[0028] In the diagram: 1. Oil cooler; 2. X-axis lead screw; 3. Y-axis lead screw; 4. Z-axis lead screw; 5. Filter; 100. Front bearing housing; 110. Housing A; 120. Pressure cap A; 130. Pressure cap B; 200. Rear bearing housing; 210. Housing B; 220. Pressure cap C; 230. Pressure cap D; 300. Cooling assembly; 310. Water channel; 320. Water tank A; 321. Groove A; 322. Groove B; 330. Water tank B; 340. Liquid inlet. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-10 This utility model provides an internally cooled bearing housing, including a front bearing housing 100, a rear bearing housing 200, and a cooling assembly 300. The front bearing housing 100 and the rear bearing housing 200 are respectively located at both ends of a lead screw. The cooling assembly 300 is provided on both the front bearing housing 100 and the rear bearing housing 200. The cooling assembly 300 includes a water channel 310, a water tank A320, a water tank B330, and a liquid inlet 340. The water channel 310, the water tank A320, the water tank B330, and the liquid inlet 340 are respectively provided in a set in the front bearing housing 100 and the rear bearing housing 200, and the water channel 310, the water tank A320, and the water tank B330 are arranged in a one-to-one correspondence. Each set of liquid inlets 340 has two, one of which is a liquid inlet and the other is a liquid outlet.

[0031] It should be noted that the above-mentioned external coolant circulation system includes an oil cooler 1. The supply port of the oil cooler 1 is connected to the inlet ports of the front bearing housing 100 and the rear bearing housing 200 on the X-axis lead screw 2, Y-axis lead screw 3 and Z-axis lead screw 4 respectively through a conduit and a distributor. The outlet ports of the front bearing housing 100 and the rear bearing housing 200 on the X-axis lead screw 2, Y-axis lead screw 3 and Z-axis lead screw 4 are connected to a filter 5 through a conduit and a distributor. The filter 5 is connected to the return port of the oil cooler 1.

[0032] The front bearing housing 100 includes a housing A110, with a pressure cap A120 and a pressure cap B130 installed on both sides of the housing A110. A set of water channels 310 and a liquid inlet 340 are both opened on the housing A110. A set of water tanks A320 is opened on the side of the pressure cap A120 facing the housing A110, and a set of water tanks B330 is opened on the side of the pressure cap B130 facing the housing A110.

[0033] The rear bearing housing 200 includes a housing B210 that is arranged opposite to the housing A110. A pressure cap C220 and a pressure cap D230 are respectively installed on both sides of the housing B210. Another set of water channels 310 and liquid inlets 340 are opened on the housing B210. Another set of water tanks A320 is opened on the side of the pressure cap C220 facing the housing B210, and another set of water tanks B330 is opened on the side of the pressure cap D230 facing the housing B210.

[0034] Among them, the shape and structural dimensions of the pressure cap A120 and pressure cap C220, and the pressure cap B130 and pressure cap D230 are the same. The central axis of the inner hole of the base body A110, pressure cap A120, pressure cap B130, base body B210, pressure cap C220 and pressure cap D230 are on the same straight line. The water channel 310 is set parallel to the central axis of the inner hole of the base body A110.

[0035] Among them, each group of water channels 310 has multiple channels distributed in a ring at equal intervals on the seat A110 and seat B210, each group of water tanks A320 has multiple channels distributed in a ring at equal intervals on the pressure cap A120 and pressure cap C220, and each group of water tanks B330 has multiple channels distributed in a ring at equal intervals on the pressure cap B130 and pressure cap C220.

[0036] The number of water channels 310 in each group is twice that of water tanks B330 in each group, the number of water tanks A320 in each group is one less than that of water tanks B330 in each group, and water tanks A320 and water tanks B330 are arranged alternately.

[0037] The two ends of the water channel 310 are connected to the corresponding water tanks A320 and B330 respectively, and the liquid inlet 340 is connected to the two adjacent water channels 310 respectively. The water channel 310, water tank A320, water tank B330 and liquid inlet 340 form a disc-shaped channel, so that the coolant can enter the disc-shaped channel from one of the liquid inlets 340. The coolant evenly contacts the front bearing housing 100 and the rear bearing housing 200 through the disc-shaped channel, and the coolant that absorbs heat can finally be discharged from the other liquid inlet 340.

[0038] Among them, water tank A320 and water tank B330 have the same shape and structural dimensions. Both water tank A320 and water tank B330 include groove A321 and groove B322. Groove A321 and groove B322 are respectively opened on pressure cap A120, pressure cap B130, pressure cap C220 and pressure cap D230. One side of the inner cavity of groove A321 is connected to groove B322, and the other side of the inner cavity of groove A321 is connected to the corresponding water channel 310. A stepped surface is formed between groove A321 and groove B322.

[0039] The working principle of this utility model is as follows: During use, the coolant flows out from the supply port of the oil cooler 1 and is divided into three directions (X, Y, and Z) by the distributor. The distributor cools the front bearing housing 100 and the rear bearing housing 200 respectively, so that the coolant is delivered to the water channel 310, water tank A320 and water tank B330 through the corresponding liquid inlet 340. This allows the coolant to evenly remove heat. After absorbing heat, the coolant is discharged through the corresponding liquid inlet 340 and collected by the distributor. After being filtered by the filter 5, it flows back into the oil cooler 1 through the return port, thus completing the circulation of the coolant and realizing internal cooling heat dissipation.

[0040] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An internally cooled bearing housing, comprising: A front bearing housing (100) and a rear bearing housing (200) are respectively located at both ends of the lead screw. Both the front bearing housing (100) and the rear bearing housing (200) are equipped with a cooling assembly (300) for use with an external coolant circulation system. The cooling assembly (300) includes a water channel (310), a water tank A (320), a water tank B (330), and a liquid inlet (340). The water channel (310), water tank A (320), water tank B (330), and liquid inlet (340) are respectively provided in a set in the front bearing housing (100) and the rear bearing housing (200), and the water channel (310), water tank A (320), and water tank B (330) are arranged in a one-to-one correspondence. Each set of liquid inlets (340) has two, one of which is a liquid inlet and the other is a liquid outlet.

2. The internally cooled bearing housing according to claim 1, characterized in that: The front bearing housing (100) includes a housing A (110), with a pressure cap A (120) and a pressure cap B (130) respectively installed on both sides of the housing A (110). One set of water channels (310) and liquid inlets (340) are opened on the housing A (110). One set of water tanks A (320) is opened on the side of the pressure cap A (120) facing the housing A (110), and one set of water tanks B (330) is opened on the side of the pressure cap B (130) facing the housing A (110).

3. The internally cooled bearing housing according to claim 2, characterized in that: The rear bearing housing (200) includes a housing B (210) arranged opposite to the housing A (110). A pressure cap C (220) and a pressure cap D (230) are respectively installed on both sides of the housing B (210). Another set of water channels (310) and liquid inlets (340) are opened on the housing B (210). Another set of water tanks A (320) is opened on the side of the pressure cap C (220) facing the housing B (210). Another set of water tanks B (330) is opened on the side of the pressure cap D (230) facing the housing B (210).

4. The internally cooled bearing housing according to claim 3, characterized in that: The shape and structural dimensions of the pressure cap A (120) and pressure cap C (220), pressure cap B (130) and pressure cap D (230) are the same. The central axes of the inner holes of the base A (110), pressure cap A (120), pressure cap B (130), base B (210), pressure cap C (220) and pressure cap D (230) are on the same straight line. The water channel (310) is arranged parallel to the central axis of the inner hole of the base A (110).

5. The internally cooled bearing housing according to claim 3, characterized in that: Each group of water channels (310) has multiple channels arranged in a ring at equal intervals on the seat A (110) and seat B (210), each group of water tanks A (320) has multiple channels arranged in a ring at equal intervals on the pressure cap A (120) and pressure cap C (220), and each group of water tanks B (330) has multiple channels arranged in a ring at equal intervals on the pressure cap B (130) and pressure cap C (220).

6. The internally cooled bearing housing according to claim 5, characterized in that: The number of water channels (310) in each group is twice that of water tanks B (330) in each group. The number of water tanks A (320) in each group is one less than that of water tanks B (330) in each group, and water tanks A (320) in each group are staggered with water tanks B (330) in each group.

7. The internally cooled bearing housing according to claim 6, characterized in that: The two ends of the waterway (310) are connected to the corresponding water tank A (320) and water tank B (330) respectively, and the liquid inlet (340) is connected to the two adjacent waterways (310) respectively. The waterway (310), water tank A (320), water tank B (330) and liquid inlet (340) form a disc-shaped channel.

8. The internally cooled bearing housing according to claim 7, characterized in that: The water tank A (320) and water tank B (330) have the same shape and structural dimensions. Both water tank A (320) and water tank B (330) include groove A (321) and groove B (322). Groove A (321) and groove B (322) are respectively opened on pressure cap A (120), pressure cap B (130), pressure cap C (220) and pressure cap D (230). One side of the inner cavity of groove A (321) is connected to groove B (322), and the other side of the inner cavity of groove A (321) is connected to the corresponding water channel (310). A stepped surface is formed between groove A (321) and groove B (322).

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