Automatic high-speed rotating grease injection head
By optimizing the connection structure between the motor and shaft of the grease injection head, and combining it with a high-speed brushless motor and sensor monitoring, the problems of unstable connection and insufficient speed were solved, thereby improving the stability and applicability of the grease injection head and enhancing the grease atomization effect.
Patent Information
- Application Number
- CN202520218557.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing grease injection heads suffer from unstable motor-shaft connections, making them unsuitable for different grease injection processes, and insufficient motor speed leading to poor atomization.
It adopts components such as high-speed brushless motor, helical spring coupling, and angular contact bearing, optimizes the connection structure between the motor and the shaft, and monitors the motor status in real time through proximity sensors to improve connection stability and speed, meeting the needs of different grease injection processes.
It improves the stability and applicability of the grease injection head, enabling it to adapt to various grease injection processes. It also provides good grease atomization, reducing component damage and preventing quality accidents.
Smart Images
Figure CN223649069U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical technical field, concretely is a kind of automatic high-speed rotary grease injection head. BACKGROUND
[0002] In the assembly of automobile steering system, many grease injection processes are involved, mainly using automatic grease injection system, and the hardware of automatic grease injection system includes grease injection mechanism, grease injection head and controller and multiple components.
[0003] At present, the grease injection head has the following problems: 1. The motor and the rotating shaft are connected through a rubber shaft sleeve. After long-term use, the rubber shaft sleeve ages and loosens, causing the motor to fail to drive the rotating shaft to rotate. 2. Different grease injection head sizes need to be selected according to different grease injection processes, and it is not possible to use one set of hardware for all grease injection processes.
[0004] In addition, since the motor used at present has no state feedback, it is not conducive to monitoring the working state of the motor. The upper limit of its rotating speed is 12000 rpm / min. For viscous grease, the rotating speed cannot be further increased, resulting in poor atomization effect of the grease injection. In the improvement process of the grease injection head, a more suitable motor also needs to be selected.
[0005] Therefore, it is necessary to design an automatic high-speed rotary grease injection head to optimize the connection mode of the motor, rotating shaft and grease injection head body, and ensure the stability of the connection structure. At the same time, in the assembly of automobile steering system, it can meet the application of different grease injection processes. SUMMARY
[0006] The utility model aims at overcoming the defects of prior art, providing an automatic high-speed rotary grease injection head to optimize the connection mode of the motor, rotating shaft and grease injection head body, and ensure the stability of the connection structure. At the same time, in the assembly of automobile steering system, it can meet the application of different grease injection processes.
[0007] In order to achieve the above-mentioned purpose, the utility model is an automatic high-speed rotary grease injection head, which comprises a high-speed brushless motor, a spiral spring coupling, a rotating shaft, a motor mounting seat, a mounting block, a grease injection head body, a locking nut, an angular contact bearing and a shaft sleeve. The high-speed brushless motor and the mounting block are respectively installed at both ends of the motor mounting seat. The rotor shaft of the high-speed brushless motor is connected with the end part of the rotating shaft through the spiral spring coupling. The spiral spring coupling is located at one end of the inner cavity of the motor mounting seat. The other end of the inner cavity of the motor mounting seat is provided with the locking nut. The rotating shaft is connected with the locking nut through the angular contact bearing. The other end of the rotating shaft passes through the motor mounting seat and the mounting block, and is connected with the grease injection head body. The mounting block is in a strip-shaped structure. The rotating shaft is connected with the mounting block through the shaft sleeve.
[0008] The motor mounting seat comprises a rear mounting plate, a connecting piece, a front mounting plate, the connecting piece is in a hollow structure, the rear end of the connecting piece is connected with the rear mounting plate, the front end of the connecting piece is connected with the front mounting plate, a high-speed brushless motor is mounted on the outer side of the rear mounting plate, and a mounting block is mounted on the outer side of the front mounting plate.
[0009] The side surface of the connecting piece and the front mounting plate is provided with a pressing plate one, a proximity sensor is mounted on the pressing plate one, and the detection end of the proximity sensor is located on the side surface of the rotating shaft.
[0010] The locking nut is fixed in the inner cavity of the motor mounting seat through a pressing plate two.
[0011] The mounting nut is adopted to connect the grease injection head body and the rotating shaft.
[0012] The oil pipe is arranged in the grease injection head body, and the end of the oil pipe is communicated with the oil outlet holes on the surface of the grease injection head body.
[0013] The oil outlet holes are uniformly distributed on the surface of the grease injection head body.
[0014] The length of the mounting block is 161mm, and the diameter is 20mm.
[0015] The end stop bolt is adopted to lock the high-speed brushless motor rotor shaft and the rotating shaft.
[0016] Compared with the prior art, the connecting structure of the high-speed brushless motor, the rotating shaft and the grease injection head body is improved, the stability of the structure is improved, and the damage of the components is reduced; through the structural design of the mounting block, the application of different grease injection processes in the automobile steering system assembly is met. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of the utility model.
[0018] Figure 2 It is a partial sectional view of the utility model. DETAILED DESCRIPTION
[0019] The utility model will be further described in combination with the drawings.
[0020] Reference Figure 1 , Figure 2The utility model relates to an automatic high -speed rotary grease injection head, including high -speed brushless motor 1, spiral spring coupling 2, pivot 3, motor mounting seat 4, mounting block 5, grease injection head body 6, locking nut 7, angular contact bearing 8, shaft sleeve 9, high -speed brushless motor 1, mounting block 5 are installed at the both ends of motor mounting seat 4 respectively, and the rotor shaft of high -speed brushless motor 1 is connected between the end portion of pivot 3 with spiral spring coupling 2, and spiral spring coupling 2 is located at the one end of the inner chamber of motor mounting seat 4, and the inner chamber other end of motor mounting seat 4 is installed with locking nut 7, and angular contact bearing 8 is connected between pivot 3 and locking nut 7, and the other end portion of pivot 3 passes through motor mounting seat 4, mounting block 5 and is connected with grease injection head body 6, and mounting block 5 is strip structure, and pivot 3 is connected with mounting block 5 with shaft sleeve 9, improve the stability of structure, reduce the damage of component.
[0021] Motor mounting seat 4 includes rear mounting plate 41, connecting piece 42, front mounting plate 43, connecting piece 42 is hollow structure, the rear end of connecting piece 42 is connected with rear mounting plate 41, the front end of connecting piece 42 is connected with front mounting plate 43, the outside of rear mounting plate 41 is installed with high -speed brushless motor 1, and the outside of front mounting plate 43 is installed with mounting block 5.
[0022] The side of connecting piece 42, front mounting plate 43 is equipped with pressing plate one 44, and proximity sensor 45 is installed on pressing plate one 44, and the detection end of proximity sensor 45 is located at the side of pivot 3. In the process of pivot 3 rotation, proximity sensor 45 can collect the pulse signal of rotation speed, and play a real-time monitoring role.
[0023] In order to facilitate installation, locking nut 7 is fixed in the inner chamber of motor mounting seat 4 with pressing plate two 10. Grease injection head body 6 and pivot 3 are connected with mounting nut 11.
[0024] Oil pipe 61 is arranged in grease injection head body 6, and the end of oil pipe 61 is communicated with oil outlet hole 62 on the surface of grease injection head body 6. Oil outlet holes 62 are evenly distributed on the surface of grease injection head body 6. Oil pipe 61 is connected with oil storage mechanism, facilitating the delivery of grease to oil outlet hole 62.
[0025] The length of mounting block 5 is 161mm, and the diameter is 20mm, and the design size can meet the application of all grease injection processes in the current steering machine rotation.
[0026] Spiral spring coupling 2 and the rotor shaft of high -speed brushless motor 1, spiral spring coupling 2 and pivot 3 are locked with stop bolt. It is stable and firm. At the same time, spiral spring coupling 2 has the functions of overload protection and shock absorption.
[0027] In the utility model, the high-speed brushless motor 1 selects the upper limit of rotating speed to reach 20000rpm / min, and has the motor state feedback. The promotion of the upper limit of rotating speed can make the oil with high viscosity achieve the atomization effect, so that the oil is evenly sprayed on the surface of the object, and the grease injection head is suitable for different kinds of oil. The motor state feedback such as preparation, busy, error and the like is convenient for the controller monitoring, so that the quality accident caused by the motor state feedback can be avoided.
[0028] In the utility model, the high-speed brushless motor 1 outputs the rated rotating speed to start rotating, drives the spiral spring coupling 2, the rotating shaft 3 and the grease injection head body 6 to rotate at the rated rotating speed at the same time, the oil pipe 61 simultaneously has the grease to hit out, the grease is distributed to the oil outlet hole 62 on the surface of the grease injection head body 6, the centrifugal force is generated through the high-speed rotating grease injection head body 6, the grease is thrown out from the oil outlet hole 62, and the thrown grease can achieve the atomization effect.
[0029] The utility model has been applied to the block hole grease injection station of production line, after 6 months of use, the present grease injection process is stable, and there is no any fault.
[0030] The utility model discloses the connecting structure improvement of high-speed brushless motor, rotating shaft, grease injection head body, improves the stability of structure, reduces the damage of part, through the structural design of mounting block, satisfies the application of different grease injection process in automobile steering system assembly, including block hole grease injection, motor hole grease injection, dust cover grease injection and the like. The utility model has the advantages of simple structure, low cost, stable and reliable.
Claims
1. An automatic high-speed rotary grease injection head, comprising a high-speed brushless motor (1), a helical spring coupling (2), a rotating shaft (3), a motor mounting base (4), a mounting block (5), a grease injection head body (6), a locking nut (7), an angular contact bearing (8), and a bushing (9), characterized in that: The high-speed brushless motor (1) and the mounting block (5) are respectively installed at both ends of the motor mounting base (4). The rotor shaft of the high-speed brushless motor (1) is connected to the end of the rotating shaft (3) by a helical spring coupling (2). The helical spring coupling (2) is located at one end of the inner cavity of the motor mounting base (4). The other end of the inner cavity of the motor mounting base (4) is equipped with a locking nut (7). The rotating shaft (3) and the locking nut (7) are connected by an angular contact bearing (8). The other end of the rotating shaft (3) passes through the motor mounting base (4) and the mounting block (5) and is connected to the grease injection head body (6). The mounting block (5) is a long strip structure. The rotating shaft (3) and the mounting block (5) are connected by a bushing (9).
2. The automatic high-speed rotary grease injection head according to claim 1, characterized in that: The motor mounting base (4) includes a rear mounting plate (41), a connector (42), and a front mounting plate (43). The connector (42) has a hollow structure. The rear end of the connector (42) is connected to the rear mounting plate (41), and the front end of the connector (42) is connected to the front mounting plate (43). A high-speed brushless motor (1) is mounted on the outside of the rear mounting plate (41), and a mounting block (5) is mounted on the outside of the front mounting plate (43).
3. The automatic high-speed rotary grease injection head according to claim 2, characterized in that: The connector (42) and the front mounting plate (43) are provided with a pressure plate (44) on the side. A proximity sensor (45) is installed on the pressure plate (44), and the detection end of the proximity sensor (45) is located on the side of the rotating shaft (3).
4. The automatic high-speed rotary grease injection head according to claim 1, characterized in that: The locking nut (7) is fixed in the inner cavity of the motor mounting base (4) by pressure plate two (10).
5. The automatic high-speed rotary grease injection head according to claim 1, characterized in that: The grease injection head body (6) and the rotating shaft (3) are connected by a mounting nut (11).
6. The automatic high-speed rotary grease injection head according to claim 1, characterized in that: The grease injection head body (6) is provided with an oil pipe (61), and the end of the oil pipe (61) is connected to the oil outlet hole (62) on the surface of the grease injection head body (6).
7. The automatic high-speed rotary grease injection head according to claim 6, characterized in that: The oil outlet holes (62) are evenly distributed on the surface of the grease injection head body (6).
8. The automatic high-speed rotary grease injection head according to claim 1, characterized in that: The mounting block (5) has a length of 161 mm and a diameter of 20 mm.
9. The automatic high-speed rotary grease injection head according to claim 1, characterized in that: The helical spring coupling (2) is locked with the rotor shaft of the high-speed brushless motor (1) and with the rotating shaft (3) by a stop bolt.