Cooling system of bearing box

Abstract

The utility model discloses a cooling system of a bearing box, and aims to provide a cooling system of a bearing box for cooling a rolling bearing. The injection molding machine comprises a box body, an injection seat and a bearing rod assembly, the injection seat is communicated with the box body, one end of the bearing rod assembly penetrates through the injection seat and then is arranged in the box body, the other end of the bearing rod assembly is connected with the injection seat, a cooling pipe is installed in the injection seat, and the cooling pipe corresponds to the bearing rod assembly. The injection seat has the beneficial effects that the rolling bearing is cooled, heat is conveniently taken away, a cooling pipe is conveniently mounted, a bearing rod assembly is conveniently mounted corresponding to the bearing, and the injection seat can be better supported.

Description

Technical Field

[0001] The utility model relates to the technical field of injection bearing boxes, in particular to a cooling system for a bearing box. Background Art

[0002] The injection bearing box on an injection molding machine is the main mechanism of the power transmission device of the injection molding machine, and the injection bearing box plays the functions of connection, support, and limit positioning therein. During the working process, a large amount of heat is generated due to friction of the bearing, and the accumulation of heat will cause an increase in friction force, which easily reduces the service life and causes unstable transmission. There is no corresponding cooling device at the rolling bearing of the existing injection bearing box, and the temperature is likely to be too high.

[0003] Chinese Patent Grant Publication No.: CN209176115U, Grant Publication Date: July 30, 2019, discloses a structure of an injection bearing box for an injection molding machine, including a bearing box. An injection drive shaft is rotatably connected inside the bearing box through a bearing group. A ball screw is arranged inside the bearing box. The ball screw includes a nut seat and a screw rod threadedly connected to the nut seat. A bearing seat is arranged at one end of the bearing box close to the nut seat. A gland cooperating with the injection drive shaft is arranged at the other end of the bearing box. A moving groove cooperating with the screw rod is arranged at the axis of one end of the injection drive shaft close to the screw rod. The injection drive shaft is fixedly connected to the nut seat. A lubricating device is arranged around the screw rod on one side of the injection drive shaft close to the screw rod. The disadvantage of this utility model is that this bearing box structure lacks a corresponding cooling device, and the temperature is likely to be too high. Summary of the Utility Model

[0004] The utility model aims to overcome the deficiency that there is no cooling device at the rolling bearing in the prior art, and provides a cooling system for a bearing box that cools and reduces the temperature at the rolling bearing.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cooling system for a bearing box includes a box body, an injection seat, and a bearing rod assembly. The injection seat is communicated with the box body. One end of the bearing rod assembly passes through the injection seat and is placed inside the box body. The other end of the bearing rod assembly is connected to the injection seat. A cooling pipe is installed inside the injection seat, and the cooling pipe corresponds to the bearing rod assembly.

[0007] The box body is the main part of the injection bearing box. An injection seat is installed on one side of the box body and is connected to the box body. One end of the bearing rod assembly is fixed on the injection seat, and the other end passes through the injection seat and is placed inside the box body. The box body, the injection seat, and the bearing rod assembly form the main structure of the injection bearing box. The bearing of the bearing rod assembly is located inside the injection seat, and the bearing rod assembly is rotatably connected to the injection seat. A cooling pipe corresponding to the bearing of the bearing rod assembly is installed inside the injection seat. The cooling pipe cools the bearing of the bearing rod assembly to quickly reduce the temperature, prevent the temperature from being too high, and achieve the purpose of cooling the rolling bearing.

[0008] Preferably, the cooling pipe is spiral. There are two jacks on the injection seat, and the jacks are connected to the injection seat. Both ends of the cooling pipe pass through the two jacks and are placed outside the injection seat. The spiral cooling pipe is placed inside the injection seat. The spiral cooling pipe can increase the length inside the injection pipe. When cold water circulates inside the cooling pipe, it can better take away heat and accelerate the cooling. Both ends of the cooling pipe pass through the jacks on the injection seat and are placed outside. One end of the cooling pipe is for water inlet and the other end is for water outlet to ensure that the cold water flows inside the cooling pipe to take away heat. Such a design is convenient for taking away heat.

[0009] Preferably, a spiral groove is provided inside the injection seat. The shape of the spiral groove is spiral. Both ends of the spiral groove are respectively connected to the two jacks, and the spiral groove corresponds to the cooling pipe. A spiral groove corresponding to the cooling pipe is installed inside the injection seat, and both ends of the spiral groove are respectively connected to the jacks on both sides. The cooling pipe is made of malleable copper pipe. The copper pipe can enter the injection seat from one jack, move along the spiral groove inside the injection seat, be bent into a spiral shape corresponding to the spiral groove inside the injection seat, and then pass out from the other jack to complete the installation of the cooling pipe. Such a design is convenient for installing the cooling pipe.

[0010] Preferably, the bearing rod assembly includes an injection screw shaft, rolling bearings, a bearing housing, and a housing cover. The injection screw shaft is placed inside the injection seat. There are several rolling bearings, all of which are installed on the injection screw shaft. The bearing housing is sleeved on the injection screw shaft. The injection screw shaft is rotatably connected to the bearing housing through the rolling bearings. The bearing housing matches the cooling pipe. The housing cover is installed on the bearing housing, and the housing cover is detachably connected to the end face of the injection seat. The injection screw shaft of the bearing rod assembly is the main rotating part. The bearing housing is installed inside the injection seat. The injection screw shaft also passes through the bearing housing and is placed inside the box body. Several rolling bearings are installed on the injection screw shaft. The injection screw shaft is rotatably connected to the bearing housing through the rolling bearings. When the injection screw bearing rotates inside the bearing housing, heat will be generated. The cooling pipe corresponds to the bearing housing, which can better take away the heat generated inside the bearing housing. The housing cover is installed on the end face of the injection seat, fixing the bearing housing and the injection screw shaft inside the injection seat. Such a design corresponds to the bearing part.

[0011] Preferably, one end of the bearing housing close to the box body is provided with a taper. One end of the bearing housing inserted into the injection seat is provided with a certain taper. When installing the bearing housing, the bearing housing can be inserted into the injection seat more conveniently. Such a design facilitates the installation of the bearing rod assembly.

[0012] Preferably, a support plate is installed on the injection seat. The cross-sectional shape of the support plate is triangular. One side of the support plate is connected to the box body, and the other side of the support plate is connected to the injection seat. A triangular support plate is installed on the injection seat. One side of the support plate is connected to the side of the injection seat, and the other side is connected to the box body. Since the injection seat extends too long from the box body, the welding part is likely to break after long-term use. The existence of the support plate can ensure the strength of the injection seat during operation and is not easy to break. Such a design can better support the injection seat.

[0013] The beneficial effects of the present utility model are as follows: Cooling and temperature reduction are carried out at the rolling bearing part, which is convenient for taking away heat, convenient for installing the cooling pipe, corresponding to the bearing part, convenient for installing the bearing rod assembly, and can better support the injection seat. Description of the Drawings

[0014] Figure 1 is the structural schematic diagram of the present utility model;

[0015] Figure 2 is Figure 1 the exploded view of

[0016] Figure 3 is Figure 1 the sectional view of the box body and the injection seat in

[0017] Figure 4 is Figure 2 the sectional view of the bearing rod assembly in

[0018] In the figure: 1. box body; 2. injection seat; 3. bearing rod assembly; 4. cooling pipe; 5. socket; 6. spiral groove; 7. injection screw shaft; 8. rolling bearing; 9. bearing box; 10. box cover; 11. support plate. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] like Figure 1 In the embodiment, a cooling system for a bearing box includes a box body 1, an injection seat 2 and a bearing rod assembly 3, the injection seat 2 is connected to the box body 1, one end of the bearing rod assembly 3 passes through the injection seat 2 and is placed in the box body 1, the other end of the bearing rod assembly 3 is connected to the injection seat 2, a cooling pipe 4 is installed in the injection seat 2, and the cooling pipe 4 corresponds to the bearing rod assembly 3.

[0021] like Figure 2 As shown, the cooling tube 4 is spiral-shaped, and two insertion holes 5 are provided on the injection seat 2 . The insertion holes 5 are connected to the injection seat 2 . The two ends of the cooling tube 4 pass through the two insertion holes 5 and are placed outside the injection seat 2 .

[0022] like Figure 3 As shown, a spiral groove 6 is provided in the injection seat 2 . The spiral groove 6 is in a spiral shape. Both ends of the spiral groove 6 are respectively connected to two insertion holes 5 . The spiral groove 6 corresponds to the cooling tube 4 .

[0023] like Figure 4 As shown, the bearing rod assembly 3 includes an injection screw shaft 7, a rolling bearing 8, a bearing box 9 and a box cover 10. The injection screw shaft 7 is placed in the injection seat 2. A plurality of rolling bearings 8 are provided and are all installed on the injection screw shaft 7. The bearing box 9 is sleeved on the injection screw shaft 7. The injection screw shaft 7 is rotatably connected to the bearing box 9 through the rolling bearing 8. The bearing box 9 matches the cooling pipe 4. The box cover 10 is installed on the bearing box 9. The box cover 10 is detachably connected to the end face of the injection seat 2. A taper is provided at one end of the bearing box 9 close to the box body 1.

[0024] A support plate 11 is installed on the injection seat 2 . The cross-section of the support plate 11 is triangular. One side of the support plate 11 is connected to the box body 1 , and the other side of the support plate 11 is connected to the injection seat 2 .

[0025] When in use, the injection screw shaft 7 rotates in the bearing box 9 through the rolling bearing 8. The rotation of the rolling bearing 8 generates heat, causing the temperature in the bearing box 9 to rise. When the temperature rises, cooling water is injected from one end of the cooling pipe 4, and the cooling pipe 4 is attached to the bearing box 9. The cooling water takes away the heat in the bearing box 9 through the spiral cooling pipe, and the cooling water with the increased temperature flows out from the other end of the cooling pipe 4 to complete the cooling of the bearing rod assembly 3.

[0026] When installing the cooling pipe 4, the cooling pipe 4 made of copper can enter the injection seat 2 from the jack 5 at one end, move along the spiral groove 6 in the injection seat 2, bend into a spiral shape corresponding to the spiral groove 6 in the injection seat 2, and then pass out from another jack 5 to complete the installation of the cooling pipe 4.

Claims

1. A cooling system for a bearing housing, characterized in that, It includes a box body (1), an injection seat (2) and a bearing rod assembly (3). The injection seat (2) is communicated with the box body (1). One end of the bearing rod assembly (3) passes through the injection seat (2) and is placed inside the box body (1). The other end of the bearing rod assembly (3) is connected to the injection seat (2). A cooling pipe (4) is installed in the injection seat (2), and the cooling pipe (4) corresponds to the bearing rod assembly (3).

2. The cooling system of a bearing housing according to claim 1, wherein, The cooling pipe (4) is spiral. There are two jacks (5) provided on the injection seat (2). The jacks (5) are communicated with the injection seat (2). Both ends of the cooling pipe (4) pass through the two jacks (5) and are placed outside the injection seat (2).

3. The cooling system of a bearing housing according to claim 2, characterized in that, A spiral groove (6) is provided in the injection seat (2). The shape of the spiral groove (6) is spiral. Both ends of the spiral groove (6) are respectively communicated with the two jacks (5). The spiral groove (6) corresponds to the cooling pipe (4).

4. The cooling system of a bearing housing according to claim 2, characterized in that, The bearing rod assembly (3) includes an injection lead screw shaft (7), rolling bearings (8), a bearing box (9) and a box cover (10). The injection lead screw shaft (7) is placed in the injection seat (2). There are several rolling bearings (8) and they are all installed on the injection lead screw shaft (7). The bearing box (9) is sleeved on the injection lead screw shaft (7). The injection lead screw shaft (7) is rotationally connected to the bearing box (9) through the rolling bearings (8). The bearing box (9) matches with the cooling pipe (4). The box cover (10) is installed on the bearing box (9), and the box cover (10) is detachably connected to the end face of the injection seat (2).

5. The cooling system of a bearing housing according to claim 4, characterized in that, One end of the bearing box (9) close to the box body (1) is provided with a taper.

6. The cooling system of a bearing housing according to claim 2, characterized in that, A support plate (11) is installed on the injection seat (2). The cross-sectional shape of the support plate (11) is triangular. One side of the support plate (11) is connected to the box body (1), and the other side of the support plate (11) is connected to the injection seat (2).

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