A brushless direct current torque motor bearing

Abstract

The utility model discloses a kind of brushless direct-current torque motor bearing, including the bearing body and bearing seat installed on motor, the bearing body is installed in bearing seat, the outer wall of the bearing body is fixedly connected with connecting ring, the outer wall of the connecting ring is equipped with multiple moving grooves, each moving groove is slidably connected with insertion block, each insertion block is elastically connected with the inner wall of corresponding moving groove by spring, the right side of the bearing seat is fixedly connected with fixed ring, the inner wall of the fixed ring is equipped with multiple limit slot matched with insertion block. The utility model is easy to install and dismount, connection is stable and reliable, and lubrication maintenance is convenient, it is important to improve the performance and service life of motor, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of electric motor bearing technology, and in particular to a brushless DC torque motor bearing. Background Technology

[0002] In fields such as industrial automation, precision instruments, and robotics, brushless DC torque motors have been widely used due to their advantages such as high precision, high reliability, and fast response speed. As one of the core components of a brushless DC torque motor, the performance of the bearing directly affects the motor's operating accuracy, stability, and service life.

[0003] Currently, traditional brushless DC torque motor bearings present numerous inconveniences during installation and disassembly. Most methods employ interference fits or bolt fixing, requiring specialized tools for press-fitting, making the process cumbersome.

[0004] Meanwhile, existing bearings also have certain shortcomings in lubrication. Traditional lubrication methods require periodic disassembly of the bearing for oiling, which not only affects the normal operation of the motor, but also easily introduces impurities during the oiling process, affecting the lubrication effect and service life of the bearing.

[0005] Therefore, it is necessary to design a brushless DC torque motor bearing to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a brushless DC torque motor bearing. This invention is easy to install and disassemble, has a stable and reliable connection, and is convenient for lubrication and maintenance. It is of great significance for improving the performance and service life of motors and reducing maintenance costs.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A brushless DC torque motor bearing includes a bearing body and a bearing housing mounted on the motor. The bearing body is installed inside the bearing housing. A connecting ring is fixedly connected to the outer wall of the bearing body. The outer wall of the connecting ring is provided with multiple moving grooves. An insertion block is slidably connected in each moving groove. Each insertion block is elastically connected to the inner wall of the corresponding moving groove by a spring. A fixing ring is fixedly connected to the right side of the bearing housing. The inner wall of the fixing ring is provided with multiple limiting grooves that cooperate with the insertion blocks.

[0009] Preferably, a plurality of guide rods are fixedly connected to the front side of the connecting ring, and a pressure ring is slidably connected to the plurality of guide rods. A baffle is fixedly connected to the left side of each pressure ring.

[0010] Preferably, a clamping bolt is threadedly connected to the pressure ring, and a threaded hole is provided on the right side of the connecting ring, with the clamping bolt threadedly connected to the inner wall of the threaded hole.

[0011] Preferably, the upper end of the bearing housing is connected to an oil inlet, and the upper end of the oil inlet is provided with a sealing plug.

[0012] Preferably, the left side of each of the insertion blocks is an arc surface.

[0013] Preferably, the fixing ring is threaded with a plurality of push-out bolts, and each push-out bolt extends into a corresponding limiting groove on the side near the axis of the fixing ring.

[0014] Compared with existing technologies, the advantages of this device are:

[0015] 1. Compared with existing technologies, this device is easier to install and disassemble. Installation is achieved quickly by the insertion block on the connecting ring engaging with the limiting groove of the fixing ring, utilizing the elasticity of the spring without the need for specialized pressing tools. During disassembly, the insertion block can be pushed out of the limiting groove by pressing out the bolts, avoiding destructive disassembly, reducing component waste, and lowering maintenance costs.

[0016] 2. Compared with existing technologies, this device offers more convenient lubrication and maintenance. The bearing housing is equipped with an oil inlet and a sealing plug, allowing for oil filling without disassembling the bearing. This ensures the normal operation of the motor, reduces the entry of impurities during the oil filling process, improves lubrication, and extends the bearing's service life.

[0017] 3. Compared with existing technologies, the connection structure of this device is more stable and reliable. The cooperation between the insertion block and the limiting groove, plus the fixing of the pressure ring by the clamping bolts, and the baffle effectively blocking the insertion block, can prevent the insertion block from dislodging from the limiting groove when the motor is running at high speed or subjected to vibration and impact, avoid loosening of the connection, and ensure the operating accuracy and safety of the motor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a brushless DC torque motor bearing proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the bearing body.

[0020] Figure 3 This is a schematic diagram of the fixed ring structure;

[0021] Figure 4 for Figure 2 A structural diagram from another perspective.

[0022] In the diagram: 1. Bearing housing, 2. Bearing body, 3. Oil inlet, 4. Sealing plug, 5. Fixing ring, 6. Connecting ring, 7. Insertion block, 8. Pressure ring, 9. Guide rod, 10. Pressing bolt, 11. Limiting groove, 12. Spring, 13. Baffle, 14. Press-out bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 A brushless DC torque motor bearing includes a bearing body 2 and a bearing housing 1 mounted on the motor. The bearing body 2 is installed inside the bearing housing 1, and the fitting accuracy between the two plays a key role in the smooth operation of the motor. A connecting ring 6 is fixedly connected to the outer wall of the bearing body 2. This connection method ensures that when the bearing rotates internally, the outer wall of the bearing and the connecting ring 6 fixed thereon will not rotate with it, thus ensuring the stability of subsequent connection structures. The outer wall of the connecting ring 6 is provided with multiple moving grooves. These moving grooves are evenly distributed and provide a track for the installation and sliding of the insertion block 7. An insertion block 7 is slidably connected in each moving groove. The left side of each insertion block 7 is an arc surface. When the bearing body 2 is installed into the bearing housing 1, the arc surface of the insertion block 7 first contacts the inner wall of the bearing housing 1. During the insertion process, the insertion block 7 is squeezed by the inner wall of the bearing housing 1, so that the insertion block 7 smoothly enters the moving groove. At this time, the spring 12 connected to the insertion block 7 is compressed. When the insertion block 7 moves to the position corresponding to the limiting groove 11 on the inner wall of the fixed ring 5, under the elastic force of the spring 12, the insertion block 7 will automatically pop out and quickly lock into the limiting groove 11, thereby realizing the initial connection between the bearing body 2 and the bearing seat 1. This connection method is simple, efficient and stable. Each insertion block 7 is elastically connected to the inner wall of the corresponding moving groove by the spring 12. The right side of the bearing seat 1 is fixedly connected to the fixed ring 5. The inner wall of the fixed ring 5 is provided with multiple limiting grooves 11 that cooperate with the insertion block 7. The number, position and size of the limiting grooves 11 are precisely matched with the insertion block 7 to ensure that the insertion block 7 can be tightly locked in, thereby restricting the axial movement of the bearing body 2 and ensuring the stability of the bearing during the operation of the motor.

[0025] The connecting ring 6 has multiple guide rods 9 fixedly connected to its front side. A pressure ring 8 is slidably connected to the multiple guide rods 9. A baffle 13 is fixedly connected to the left side of each pressure ring 8. The baffle 13 is made of high-strength metal material and has a certain thickness and strength. A clamping bolt 10 passes through the pressure ring 8. The connecting ring 6 has a threaded hole on its right side. The clamping bolt 10 is threaded to the inner wall of the threaded hole. When the pressure ring 8 slides on the guide rod 9 to a suitable position, it effectively blocks the insertion block 7, preventing the insertion block 7 from accidentally coming out of the limiting groove 11, and further enhancing the stability of the entire connection structure.

[0026] By rotating the clamping bolt 10, utilizing the transmission principle of the thread, the clamping bolt 10 can drive the pressure ring 8 to move to the left along the guide rod 9. When the pressure ring 8 moves to the appropriate position, the baffle 13 reliably blocks the insertion block 7. At this point, continuing to tighten the clamping bolt 10 can further fix the position of the pressure ring 8, ensuring the stability of the entire connection structure. During disassembly, rotating the clamping bolt 10 in the opposite direction will cause the pressure ring 8 to move to the right, releasing the baffle 13 from blocking the insertion block 7, facilitating subsequent disassembly and maintenance of the bearing.

[0027] The upper end of the bearing housing 1 is connected to an oil inlet 3. The design of the oil inlet 3 facilitates the lubrication of the bearing. The upper end of the oil inlet 3 is equipped with a sealing plug 4. The sealing plug 4 is made of rubber or other materials with good sealing performance, which can effectively prevent dust, impurities and other foreign objects from entering the oil inlet 3 and the bearing, ensuring the cleanliness of the lubricating oil and the lubrication effect.

[0028] The retaining ring 5 is threaded with multiple push-out bolts 14. Each push-out bolt 14 extends into the corresponding limiting groove 11 on the side closest to the axis of the retaining ring 5. The push-out bolt 14 can move into the limiting groove 11 and push the insertion block 7, so that the insertion block 7 compresses the spring 12 and exits from the limiting groove 11, thereby facilitating the removal of the bearing body 2 from the bearing seat 1, which greatly improves the disassembly efficiency and convenience of the bearing.

[0029] The functional principle of this utility model can be explained through the following operation: During installation, the bearing body 2 is inserted into the bearing seat 1 from right to left. Since the left side of the insertion block 7 is curved, during the insertion process, the insertion block 7 will be squeezed by the inner wall of the bearing seat 1, thereby causing the insertion block 7 to enter the moving groove, and the spring 12 is compressed. When the insertion block 7 corresponds to the limiting groove 11 on the inner wall of the fixing ring 5, under the elastic force of the spring 12, the insertion block 7 will automatically pop out and lock into the limiting groove 11, realizing the initial connection between the bearing body 2 and the bearing seat 1. Afterwards, by rotating the clamping bolt 10, the clamping bolt 10 drives the clamping ring 8 to move to the left on the guide rod 9, so that the baffle 13 on the left side of the clamping ring 8 moves to the side of the insertion block 7 close to the axis of the fixing ring 5. As the clamping bolt 10 is threadedly connected and tightened with the threaded hole on the connecting ring 6, the clamping ring 8 is fixed, and the baffle 13 will block the insertion block 7, preventing the insertion block 7 from coming out of the limiting groove 11, thus completing the stable installation.

[0030] When lubrication is required, open the sealing plug 4 of the oil filling port 3 at the upper end of the bearing housing 1, and inject lubricating oil into the bearing through the oil filling port 3. After the oil filling is completed, replace the sealing plug 4 to prevent impurities from entering and ensure the lubrication effect.

[0031] During disassembly, first loosen the clamping bolt 10, slide the pressure ring 8 to make the baffle 13 leave the insertion block 7, and then turn the pressing bolt 14 on the fixing ring 5. The pressing bolt 14 will move into the limiting groove 11 and push the insertion block 7, so that the insertion block 7 compresses the spring 12 and exits from the limiting groove 11. At this time, the bearing body 2 can be removed from the bearing seat 1, realizing convenient disassembly.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A brushless DC torque motor bearing, comprising a bearing body (2) and a bearing housing (1) mounted on the motor, characterized in that: The bearing body (2) is installed inside the bearing seat (1). A connecting ring (6) is fixedly connected to the outer wall of the bearing body (2). The outer wall of the connecting ring (6) is provided with multiple moving grooves. An insertion block (7) is slidably connected in each moving groove. Each insertion block (7) is elastically connected to the inner wall of the corresponding moving groove by a spring (12). A fixing ring (5) is fixedly connected to the right side of the bearing seat (1). The inner wall of the fixing ring (5) is provided with multiple limiting grooves (11) that cooperate with the insertion blocks (7).

2. The brushless DC torque motor bearing according to claim 1, characterized in that: Multiple guide rods (9) are fixedly connected to the front side of the connecting ring (6), and pressure rings (8) are slidably connected to the multiple guide rods (9). A baffle (13) is fixedly connected to the left side of each pressure ring (8).

3. The brushless DC torque motor bearing according to claim 2, characterized in that: A clamping bolt (10) passes through the pressure ring (8), and a threaded hole is provided on the right side of the connecting ring (6). The clamping bolt (10) is threadedly connected to the inner wall of the threaded hole.

4. The brushless DC torque motor bearing according to claim 1, characterized in that: The upper end of the bearing housing (1) is connected to an oil inlet (3), and the upper end of the oil inlet (3) is provided with a sealing plug (4).

5. A brushless DC torque motor bearing according to claim 1, characterized in that: The left side of each of the insertion blocks (7) is an arc surface.

6. The brushless DC torque motor bearing according to claim 1, characterized in that: The fixed ring (5) is threaded with a plurality of push-out bolts (14), and each push-out bolt (14) extends into the corresponding limiting groove (11) on the side near the axis of the fixed ring (5).

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