Guide bushing lubricating mechanism for automobile steering device

Abstract

The invention relates to the technical field of automobile part machining, in particular to a guide bushing lubricating mechanism for an automobile steering gear, which comprises a workbench, the workbench is fixedly mounted on the ground, the top surface of the workbench is fixedly connected with a stand column, the top surface of the stand column is rotatably connected with a cross-shaped fixing plate I, the top surface of the workbench is fixedly connected with a fixing frame, and the cross-shaped fixing plate I is rotatably connected with the top surface of the stand column. The four smearing mechanisms are distributed in a rectangular shape, penetrate through the four ends of the bottom face of the first cross-shaped fixing plate in a sliding mode and are used for evenly smearing lubricating grease on the outer side of the lining, and each smearing mechanism comprises a connecting rod which penetrates through the first cross-shaped fixing plate in a sliding mode. According to the lining clamping device, the multiple clamping rods are arranged on the fixing disc, then the rubber rings are used in cooperation with the conical blocks at the corresponding positions, the lining can be clamped or released, the clamping rods are sleeved with the rubber sleeves, and friction between the clamping rods and the lining can be increased; and the multiple clamping rods at the opposite positions can clamp or release the bushings more stably.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a guide bushing lubricating mechanism for an automobile steering gear. Background Art

[0002] The function of the steering gear is to properly transform the steering torque and steering angle from the steering wheel (mainly deceleration and torque increase), and then output it to the steering rod mechanism to make the car turn. Therefore, the steering gear is essentially a deceleration transmission device. The steering gear bushing of the car is a key part in the steering gear positioning structure. The wear of the steering gear bushing will lead to poor positioning of the steering gear in the steering system, which will lead to insufficient steering return when the vehicle is driving and reduced steering accuracy. In order to solve the bushing wear problem, the steering gear bushing needs to be lubricated before installation.

[0003] Chinese patent publication number CN117072851B discloses a guide bushing lubrication mechanism for an automobile steering gear. The guide bushing can be clamped by two arc-shaped clamping claws, and a downward driving mechanism is pressed to unlock the arc-shaped clamping claws. That is, when the rotating mechanism is driven, the arc-shaped clamping claws can always maintain a good clamping function on the guide bushing, thereby improving the transfer accuracy.

[0004] Although the above patent can lubricate the bushing by placing it into the lubrication mechanism through two arc-shaped clamping claws, Figure 7 As shown, it can be seen that the contact area between the two arc-shaped clamping claws and the bushing is relatively large, which results in that when the bushing is placed in the lubrication mechanism for lubrication, since the grease is relatively thick (similar to cooled lard), in order to facilitate the installation of the bushing, it is necessary not only to lubricate the inside but also to lubricate the outside of the bushing. In the process of loosening the bushing, the two clamping claws will push away the grease on the outside of the bushing in the lubrication mechanism, resulting in only a small amount of grease in contact with the outside of the bushing. Therefore, it is necessary to manually apply grease during the installation of the bushing, which not only increases the labor intensity of the staff, but also reduces the installation efficiency of the bushing. Summary of the invention

[0005] The object of the present invention is to provide a guide bushing lubrication mechanism for an automobile steering gear to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A guide bushing lubrication mechanism for an automobile steering gear, comprising: A workbench is installed and fixed on the ground, the top surface of the workbench is fixedly connected to a column, the top surface of the column is rotatably connected to a cross-shaped fixing plate, and the top surface of the workbench is fixedly connected to a fixing frame; Four smearing mechanisms are distributed in a rectangular shape and respectively penetrate and slide with the four ends of the bottom surface of a cross-shaped fixed plate, and are used to evenly apply grease to the outside of the bushing. The smearing mechanism includes a connecting rod that penetrates and slides with the cross-shaped fixed plate, the bottom end of the connecting rod is fixedly connected to a fixed disk, and a plurality of sliding holes are opened through the top surface of the fixed disk at an annular equal angle, a clamping rod slides through the sliding hole, the top end of the clamping rod is fixedly connected to a trapezoidal block, and rubber rings are embedded and sleeved between the plurality of trapezoidal blocks at relative positions, the bottom surface of the fixed disk is rotatably connected to a multi-section gas spring telescopic rod, and the bottom end of the multi-section gas spring telescopic rod is detachably connected to an extrusion block; Four pressing mechanisms, distributed in a rectangular shape and arranged between the smearing mechanism and the cross-shaped fixing plate 1, are used to adjust the spacing between the plurality of clamping rods at corresponding positions, and the pressing mechanisms include conical blocks penetrating the connecting rods at corresponding positions; A rotating mechanism, arranged on the top surface of the cross-shaped fixed plate 1, is used to control the movement of the four pressing mechanisms; The rotating mechanism is arranged on the inner bottom surface of the fixing frame and is rotatably connected with the four coating mechanisms, and is used to control the rotation of the coating mechanisms and control the four coating mechanisms to revolve along the axis of the column; Two symmetrical conveying mechanisms are fixedly connected to the top surface of the workbench and are used to convey the bushing; Two symmetrical vibration mechanisms are arranged on the top surface of the workbench, which are used to contain the grease and vibrate the grease to make it flat.

[0007] Furthermore, grooves for clamping the rubber rings are formed on the outer sides of the plurality of trapezoidal blocks at relative positions, and the outer wall of the clamping rod is fixedly connected with a limiting block abutting against the fixed disk at the corresponding position.

[0008] Furthermore, the four ends of the top surface of the cross-shaped fixed plate 1 are fixedly connected with a ring that slides through the connecting rod at the corresponding position, the outer wall of the ring is fixedly connected with a gear 1, the four ends of the top surface of the cross-shaped fixed plate 1 are penetrated by two symmetrical threaded sleeves that rotate, the top surface of the conical block is fixedly connected with a screw that penetrates and screws with the threaded sleeve at the corresponding position, and the outer wall of the threaded sleeve is fixedly connected with a gear 2 that meshes with the gear 1 at the corresponding position.

[0009] Furthermore, the outer wall of the ring is fixedly connected to a synchronous wheel 1, the rotating mechanism includes four rotating shafts 1 distributed in a ring shape at equal angles and rotatably connected to the top surface of a cross-shaped fixed plate, and the outer wall of the rotating shaft 1 is fixedly connected to a synchronous wheel 3 which is driven by a synchronous belt 1 and is connected to the synchronous wheel 1 at a corresponding position.

[0010] Furthermore, a gear three is fixedly connected to the bottom end of the outer wall of the rotating shaft one, a chamber is opened on the inner top of the column, a servo motor one is fixedly connected to the inner top surface of the chamber, and the output end of the servo motor one passes through a cross-shaped fixed plate one and is fixedly connected to a gear disk one meshing with four gear threes.

[0011] Furthermore, the diameter of the gear one is greater than the diameter of the gear two.

[0012] Furthermore, the rotating mechanism includes a turntable rotatably connected to the top surface of the fixed frame through a connecting shaft, four electric push rods are fixedly connected to the bottom surface of the turntable in an annular manner at equal angles, a cross-shaped fixed plate 2 rotatably connected to the four connecting rods is fixedly connected between the output ends of the four electric push rods, a driving motor is fixedly connected to the top surface of the fixed frame, and the output end of the driving motor passes through the fixed frame and is fixedly connected to the connecting shaft.

[0013] Furthermore, a synchronous wheel 2 is fixedly connected to the top of the outer wall of the connecting rod, four rotating shafts 2 are connected to the bottom surface of the cross-shaped fixed plate 2 in an annular manner with equal angles, and a synchronous wheel 4 is fixedly connected to the outer wall of the rotating shaft 2 and is connected to the synchronous wheel 2 at the corresponding position through a synchronous belt 2.

[0014] Furthermore, the outer wall of the rotating shaft 2 is fixedly connected with a gear 4, the top surface of the cross-shaped fixing plate 2 is fixedly connected with a servo motor 2, and the output end of the servo motor 2 passes through the bottom surface of the cross-shaped fixing plate 2 and is fixedly connected with a gear disk 2 meshing with four gears 4.

[0015] Furthermore, the vibration mechanism includes four sliding rods distributed in a rectangular shape and fixedly connected to the top surface of the workbench, a storage bin is slidably connected between the four sliding rods at relative positions, a vibration motor is fixedly connected to the bottom surface of the storage bin, a fixed frame is fixedly connected to the outside of the storage bin and slides through the four sliding rods at corresponding positions, and support springs fixedly connected to the workbench are fixedly connected at the four corners of the bottom surface of the fixed frame and on the outside of the sliding rods.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By arranging a plurality of clamping rods at the fixed plate, and then using the rubber ring and the conical block at the corresponding position in cooperation, the bushing can be clamped or released, and the rubber sleeve is sleeved on the clamping rod to increase the friction between the clamping rod and the bushing, so that the clamping or release of the bushing by the plurality of clamping rods at the relative positions is more stable; 2. By designing the clamping rod into a round shape, the contact surface between the clamping rod and the bushing is relatively small. When the clamping rod is separated from the bushing, although part of the grease on the outside of the bushing can be pushed away, most of the bushing is still in contact with the grease, so that the outer surface of the bushing can be better greased, and it is not necessary to manually grease the bushing again during the later installation process, thereby reducing the workload of the staff and improving the efficiency of bushing lubrication and installation; 3. The distance between the clamping rod and the bushing can be adjusted by the downward movement of the conical block, and then the connecting rod drives the multiple clamping rods at the corresponding positions to rotate, so that the thickness of the grease applied to each part of the outer side of the bushing is the same and more uniform, and meets the required thickness; 4. The turntable can drive the cross-shaped fixed plate 2 to rotate 90 degrees through the driving motor. Since the connecting rod is rotatably connected to the cross-shaped fixed plate 2, the cross-shaped fixed plate 2 can drive the four connecting rods to revolve 90 degrees along the axis of the turntable. Then, the four electric push rods can drive the cross-shaped fixed plate 2 to move the four connecting rods, so that the bushing on the conveying mechanism can be moved to the vibration mechanism, or the bushing in the vibration mechanism can be moved to the conveying mechanism, thereby improving the efficiency of bushing lubrication; 5. The vibrating motor drives the storage bin to vibrate the grease inside, so that the grease restores the pits to a flat state under the condition of vibration, so as to apply grease to the next bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of a workbench in the present invention; Figure 3 It is a schematic diagram of the structure of the coating mechanism in the present invention; Figure 4 It is an enlarged view of point A in the present invention; Figure 5 It is a schematic diagram of the structure of the pressing mechanism in the present invention; Figure 6 It is a schematic diagram of the structure of the rotating mechanism in the present invention; Figure 7 It is a schematic diagram of the structure of the rotating mechanism in the present invention; Figure 8 It is a schematic diagram of the structure of the vibration mechanism in the present invention.

[0018] In the figure: 1, workbench; 11, column; 12, cross-shaped fixing plate 1; 13, fixing frame; 2, coating mechanism; 21, connecting rod; 22, fixing plate; 23, sliding hole; 24, clamping rod; 241, trapezoidal block; 242, rubber ring; 243, limit block; 25, multi-section gas spring telescopic rod; 26, extrusion block; 27, gear 1; 28, synchronous wheel 1; 29, synchronous wheel 2; 3, pressing mechanism; 31, tapered block; 32, threaded sleeve; 33, screw; 34 , gear two; 4, rotating mechanism; 41, synchronous wheel three; 42, gear three; 43, toothed disc one; 44, servo motor one; 5, rotating mechanism; 51, turntable; 52, electric push rod; 53, cross-shaped fixed plate two; 54, synchronous wheel four; 55, gear four; 56, toothed disc two; 57, servo motor two; 58, driving motor; 6, conveying mechanism; 7, vibration mechanism; 71, sliding rod; 72, storage bin; 73, vibration motor; 74, fixed frame; 75, support spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-8 In an embodiment of the present invention, a guide bushing lubricating mechanism for an automobile steering gear includes a workbench 1, four smearing mechanisms 2, four pressing mechanisms 3, a rotating mechanism 4, a rotating mechanism 5, two symmetrical conveying mechanisms 6 and two symmetrical vibration mechanisms 7. The workbench 1 is installed and fixed on the ground, a column 11 is fixedly connected to the top surface of the workbench 1, a cross-shaped fixing plate 12 is rotatably connected to the top surface of the column 11, and a fixing frame 13 is fixedly connected to the top surface of the workbench 1; Four smearing mechanisms 2 are distributed in a rectangular shape and respectively penetrate and slide with the four ends of the bottom surface of the cross-shaped fixed plate 12, and are used to evenly apply the grease to the outside of the bushing. The smearing mechanism 2 includes a connecting rod 21 that penetrates and slides with the cross-shaped fixed plate 12. The bottom end of the connecting rod 21 is fixedly connected to a fixed disk 22. A plurality of sliding holes 23 are formed in a circular shape at equal angles on the top surface of the fixed disk 22. A clamping rod 24 slides through the sliding hole 23. The top of the clamping rod 24 is fixedly connected to a trapezoidal block 241. A rubber ring 242 is embedded and sleeved between the plurality of trapezoidal blocks 241 at relative positions. The bottom surface of the fixed disk 22 is rotatably connected to a multi-section gas spring telescopic rod 25. The bottom end of the multi-section gas spring telescopic rod 25 is detachably connected to an extrusion block 26. Four pressing mechanisms 3 are distributed in a rectangular shape and are arranged between the smearing mechanism 2 and the cross-shaped fixed plate 12, and are used to adjust the spacing between the plurality of clamping rods 24 at corresponding positions. The pressing mechanism 3 includes a conical block 31 that penetrates the connecting rod 21 at the corresponding position. A rotating mechanism 4 is arranged on the top surface of a cross-shaped fixed plate 12, and is used to control the movement of four pressing mechanisms 3. A rotating mechanism 5 is arranged on the inner bottom surface of a fixed frame 13, and is rotatably connected to the four coating mechanisms 2, and is used to control the rotation of the coating mechanisms 2, and control the revolution of the four coating mechanisms 2 along the axis of the column 11. Two symmetrical conveying mechanisms 6 are fixedly connected to the top surface of the workbench 1, and are used to convey the bushing. Two symmetrical vibration mechanisms 7 are arranged on the top surface of the workbench 1, and are used to contain grease and vibrate the grease to make it flat.

[0021] Specifically, first, add grease to the two vibration mechanisms 7, and then place the bushings on the two conveying mechanisms 6 at equal intervals. When the conveying mechanism 6 conveys the bushing to the bottom of the fixed plate 22, the conveying mechanism 6 stops, and the conical block 31 moves downward, so that the conical block 31 moves the multiple trapezoidal blocks 241 at the corresponding positions away from the axis of the connecting rod 21 at the corresponding positions, so that the multiple clamping rods 24 are spread open, and the connecting rod 21 is moved downward until the bushing is located between the multiple clamping rods 24 at the corresponding positions, and then the conical block 31 is moved upward. At this time, the multiple clamping rods 24 are clamped by the elastic action of the rubber rings 242 at the corresponding positions, and then the cross-shaped fixed plate 22 is driven by the upward movement of the connecting rod 21 and the start of the rotating mechanism 5. The fixed plate 12 is rotated 90 degrees, so that the connecting rod 21 drives the bushing to move to the top of the vibration mechanism 7, and then the connecting rod 21 is moved downward to drive the bushing to move downward to contact the inner bottom surface of the vibration mechanism 7. At this time, the bushing is located in the grease in the vibration mechanism 7. By making the diameter of the extrusion block 26 slightly smaller than the inner diameter of the bushing, since the bushing on the clamping and conveying mechanism 6 is, the extrusion block 26 is located inside the bushing, so when the bushing is placed in the vibration mechanism 7, the grease inside it will be squeezed out from between the inner wall of the bushing and the extrusion block 26, and then the multiple clamping rods 24 at the corresponding positions are separated from the bushing by moving the conical block 31 downward (the distance between the multiple clamping rods 24 and the bushing at the relative positions can be adjusted according to the thickness of the grease to be applied on the outer side of the bushing). ), since the contact surface between the clamping rod 24 and the bushing is relatively small, when the clamping rod 24 is separated from the bushing, although part of the grease on the outside of the bushing can be pushed away, most of the bushing is still in contact with the grease, and then the fixing plate 22 at the corresponding position is driven to rotate by the connecting rod 21. The rotating fixing plate 22 can make the multiple clamping rods 24 at the corresponding positions rotate on the outside of the bushing, so that the thickness of the grease applied to the outside of the bushing in the grease in the vibration mechanism 7 can be very uniform. At the same time, the conveying mechanism 6 starts to convey the bushing again until the conveying mechanism 6 moves the bushing to the bottom of the connecting rod 21 again, and then restores it to its original position by moving the conical block 31 upward. At this time, the multiple clamping rods 24 at the relative positions are at the rubber ring 2 at the corresponding positions. Under the action of 42, the bushing at the corresponding position is clamped. In order to enable the clamping rod 24 to clamp the bushing coated with grease, a rubber sleeve can be put on the outer wall of the clamping rod 24 to increase the friction between the clamping rod 24 and the bushing, and then the rotating mechanism 5 is reversely rotated 90 degrees to restore the original position, so that the connecting rod 21 moves down, so that the bushing in the vibration mechanism 7 moves to the top of the conveying mechanism 6, and the bushing originally on the conveying mechanism 6 is clamped and fixed by the multiple clamping rods 24 at the corresponding positions and moved to the top of the vibration mechanism 7, and then the conical block 31 is moved down to separate the multiple clamping rods 24 at the corresponding positions from the bushing. In this reciprocating operation, the bushing can be moved to the vibration mechanism 7 to apply grease, and then the applied grease is moved to the conveying mechanism 6.In order to facilitate the installation of the bushing by the staff, the device is provided with a plurality of clamping rods 24 at the fixed plate 22, and then the bushing can be clamped or released by the cooperation of the rubber ring 242 and the conical block 31 at the corresponding position. The distance between the clamping rod 24 and the bushing can be adjusted by the downward distance of the conical block 31, and then the plurality of clamping rods 24 at the corresponding position are driven to rotate by the connecting rod 21, so that the thickness of the grease applied at each location on the outer side of the bushing is the same and more uniform, and meets the required thickness. It is not necessary to manually apply grease to the bushing again during the later installation process, thereby reducing the workload of the staff and improving the efficiency of bushing lubrication and installation.

[0022] Embodiment 1 like Figure 3 and Figure 4 As shown, in this embodiment, grooves for clamping the rubber ring 242 are provided on the outer sides of the plurality of trapezoidal blocks 241 at relative positions, and the outer wall of the clamping rod 24 is fixedly connected with a limit block 243 abutting against the fixed plate 22 at the corresponding position.

[0023] In this embodiment, the rubber ring 242 is clamped in the multiple grooves at the corresponding positions to prevent the rubber ring 242 from slipping between the multiple trapezoidal blocks 241 , and the clamping rod 24 can move straightly through the limit block 243 .

[0024] Embodiment 2 like Figure 3-5 As shown, in this embodiment, the four ends of the top surface of the cross-shaped fixing plate 12 are fixedly connected with a ring that slides through the connecting rod 21 at the corresponding position, and the outer wall of the ring is fixedly connected with a gear 27. The four ends of the top surface of the cross-shaped fixing plate 12 are penetrated by two symmetrical threaded sleeves 32 for rotation. The top surface of the conical block 31 is fixedly connected with a screw 33 that penetrates and screws with the threaded sleeve 32 at the corresponding position, and the outer wall of the threaded sleeve 32 is fixedly connected with a gear 2 34 that meshes with the gear 27 at the corresponding position.

[0025] In this embodiment, the two threaded sleeves 32 at the corresponding positions can be rotated by rotating the gear 27, and the rotating threaded sleeves 32 can move the screw rods 33 at the corresponding positions. The simultaneous movement of the two screw rods 33 at relative positions can move the conical block 31 at the corresponding position, thereby controlling the clamping or release of the bushing by the multiple clamping rods 24 at the corresponding positions.

[0026] Embodiment 3 like Figure 3 and Figure 6As shown, in this embodiment, the outer wall of the ring is fixedly connected to a synchronous wheel 28, the rotating mechanism 4 includes four rotating shafts 1 distributed in a ring with equal angles and rotatably connected to the top surface of the cross-shaped fixed plate 12, the outer wall of the rotating shaft 1 is fixedly connected to a synchronous wheel 3 41 which is driven by a synchronous belt 1 with the synchronous wheel 28 at the corresponding position, the bottom end of the outer wall of the rotating shaft 1 is fixedly connected to a gear 3 42, the inner top of the column 11 is provided with a chamber, the inner top surface of the chamber is fixedly connected to a servo motor 44, the output end of the servo motor 44 passes through the cross-shaped fixed plate 12 and is fixedly connected to a toothed disc 43 meshing with the four gears 3 42, and the diameter of the gear 27 is larger than the diameter of the gear 2 34.

[0027] In this embodiment, the drive of the servo motor 44 can make the toothed disc 43 drive the four gears 42 to rotate, and the rotating gear 42 can make the synchronous wheel 3 41 at the corresponding position rotate. Since the synchronous wheel 3 41 and the synchronous wheel 28 at the corresponding position are connected through a synchronous belt transmission, the drive of the servo motor 44 can control the movement of the four conical blocks 31.

[0028] Embodiment 4 like Figure 3 and Figure 7 As shown, in this embodiment, the rotating mechanism 5 includes a turntable 51 which is rotatably connected to the inner top surface of the fixed frame 13 through a connecting shaft, four electric push rods 52 are fixedly connected to the bottom surface of the turntable 51 at equal angles in an annular manner, a cross-shaped fixed plate 2 53 which is rotatably connected to four connecting rods 21 is fixedly connected between the output ends of the four electric push rods 52, a driving motor 58 is fixedly connected to the top surface of the fixed frame 13, the output end of the driving motor 58 passes through the fixed frame 13 and is fixedly connected to the connecting shaft, a synchronous wheel 29 is fixedly connected to the top of the outer wall of the connecting rod 21, four rotating shafts 2 are rotatably connected to the bottom surface of the cross-shaped fixed plate 2 53 at equal angles, a synchronous wheel 4 54 which is fixedly connected to the outer wall of the rotating shaft 2 and is connected to the synchronous wheel 29 at the corresponding position through a synchronous belt 2, a gear 4 55 is fixedly connected to the outer wall of the rotating shaft 2, a servo motor 2 57 is fixedly connected to the top surface of the cross-shaped fixed plate 2 53, and the output end of the servo motor 2 57 passes through the bottom surface of the cross-shaped fixed plate 2 53 and is fixedly connected to a toothed disc 2 56 which meshes with the four gears 4 55.

[0029] In this embodiment, the turntable 51 can drive the cross-shaped fixed plate 2 53 to rotate 90 degrees through the drive of the drive motor 58. Since the connecting rod 21 is rotatably connected to the cross-shaped fixed plate 2 53, the cross-shaped fixed plate 2 53 can drive the four connecting rods 21 to revolve 90 degrees along the axis of the turntable 51. Then, through the drive of the four electric push rods 52, the cross-shaped fixed plate 2 53 can drive the four connecting rods 21 to move, so that the bushing on the conveying mechanism 6 can be moved to the vibration mechanism 7, or the bushing in the vibration mechanism 7 can be moved to the conveying mechanism 6. The drive of the servo motor 2 57 can make the toothed plate 2 56 drive the four gears 4 55 and the four synchronous wheels 4 54 to rotate. Since the synchronous wheel 4 54 and the synchronous wheel 2 29 are driven by the synchronous belt 2, the drive of the servo motor 2 57 can control the connecting rod 21 to drive the multiple clamping rods 24 at the corresponding positions to rotate.

[0030] Embodiment 5 like Figure 8 As shown, in the present embodiment, the vibration mechanism 7 includes four slide bars 71 which are distributed in a rectangular shape and fixedly connected to the top surface of the workbench 1, a storage bin 72 is slidably connected between the four slide bars 71 at relative positions, a vibration motor 73 is fixedly connected to the bottom surface of the storage bin 72, a fixed frame 74 which slides through the four slide bars 71 at corresponding positions is fixedly connected to the outer side of the storage bin 72, and support springs 75 which are fixedly connected to the workbench 1 are fixedly connected at the four corners of the bottom surface of the fixed frame 74 and located on the outer side of the slide bars 71.

[0031] In this embodiment, since there will be holes in the grease in the storage bin 72 when the multiple clamping rods 24 take the bushing out of the grease in the storage bin 72, the storage bin 72 can be driven by the vibration motor 73 to vibrate the grease inside it, so that the grease can be restored to a flat state under the vibration, so as to apply grease to the next bushing.

[0032] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A guide bushing lubrication mechanism for an automobile steering gear, characterized in that: include: A workbench (1) is installed and fixed on the ground, the top surface of the workbench (1) is fixedly connected to a column (11), the top surface of the column (11) is rotatably connected to a cross-shaped fixing plate (12), and the top surface of the workbench (1) is fixedly connected to a fixing frame (13); Four smearing mechanisms (2) are distributed in a rectangular shape and respectively penetrate and slide with four ends of the bottom surface of the cross-shaped fixed plate (12) to evenly smear the grease on the outer side of the bushing. The smearing mechanism (2) comprises a connecting rod (21) that penetrates and slides with the cross-shaped fixed plate (12). The bottom end of the connecting rod (21) is fixedly connected to a fixed plate (22). The top surface of the fixed plate (22) is provided with a plurality of sliding holes (23) that are formed in an annular manner at equal angles. A clamping rod (24) is slidably penetrated in the sliding hole (23). The top end of the clamping rod (24) is fixedly connected to a trapezoidal block (241). A rubber ring (242) is embedded and sleeved between the plurality of trapezoidal blocks (241) at relative positions. The bottom surface of the fixed plate (22) is rotatably connected to a multi-section gas spring telescopic rod (25). The bottom end of the multi-section gas spring telescopic rod (25) is detachably connected to an extrusion block (26). Four pressing mechanisms (3) are arranged in a rectangular shape and are disposed between the smearing mechanism (2) and the cross-shaped fixing plate (12), and are used to adjust the spacing between the plurality of clamping rods (24) at corresponding positions. The pressing mechanism (3) comprises a conical block (31) penetrating the connecting rod (21) at the corresponding position. A rotating mechanism (4) is arranged on the top surface of the cross-shaped fixing plate (12) and is used to control the movement of the four pressing mechanisms (3); A rotating mechanism (5) is arranged on the inner bottom surface of the fixed frame (13) and is rotatably connected to the four coating mechanisms (2) and is used to control the rotation of the coating mechanisms (2) and to control the four coating mechanisms (2) to revolve along the axis of the column (11); Two symmetrical conveying mechanisms (6) are fixedly connected to the top surface of the workbench (1) and are used to convey the bushing; Two symmetrical vibration mechanisms (7) are arranged on the top surface of the workbench (1) and are used to contain the lubricating grease and vibrate the lubricating grease to make it smooth.

2. The guide bushing lubrication mechanism for an automobile steering gear according to claim 1, characterized in that: A groove for clamping the rubber ring (242) is formed on the outer sides of the plurality of trapezoidal blocks (241) at relative positions, and a limit block (243) abutting against the fixed disk (22) at the corresponding position is fixedly connected to the outer wall of the clamping rod (24).

3. The guide bushing lubrication mechanism for an automobile steering gear according to claim 1, characterized in that: The four ends of the top surface of the cross-shaped fixing plate 1 (12) are fixedly connected to a collar that slides through the connecting rod (21) at the corresponding position, and the outer wall of the collar is fixedly connected to a gear 1 (27). The four ends of the top surface of the cross-shaped fixing plate 1 (12) are fixedly connected to two symmetrical threaded sleeves (32) that rotate through them. The top surface of the conical block (31) is fixedly connected to a screw rod (33) that screws through the threaded sleeve (32) at the corresponding position, and the outer wall of the threaded sleeve (32) is fixedly connected to a gear 2 (34) that meshes with the gear 1 (27) at the corresponding position.

4. The guide bushing lubrication mechanism for an automobile steering gear according to claim 3, characterized in that: The outer wall of the sleeve is fixedly connected to a synchronous wheel 1 (28), the rotating mechanism (4) comprises four rotating shafts 1 which are distributed in an annular shape at equal angles and are rotatably connected to the top surface of a cross-shaped fixed plate 1 (12), and the outer wall of the rotating shaft 1 is fixedly connected to a synchronous wheel 3 (41) which is driven by a synchronous belt 1 and is connected to the synchronous wheel 1 (28) at a corresponding position.

5. The guide bushing lubrication mechanism for an automobile steering gear according to claim 4, characterized in that: The bottom end of the outer wall of the rotating shaft 1 is fixedly connected to a gear 3 (42), the inner top of the column (11) is provided with a chamber, the inner top surface of the chamber is fixedly connected to a servo motor 1 (44), and the output end of the servo motor 1 (44) passes through the cross-shaped fixing plate 1 (12) and is fixedly connected to a gear disc 1 (43) meshing with the four gears 3 (42).

6. The guide bushing lubrication mechanism for an automobile steering gear according to claim 5, characterized in that: The diameter of gear one (27) is greater than the diameter of gear two (34).

7. The guide bushing lubrication mechanism for an automobile steering gear according to claim 5, characterized in that: The rotating mechanism (5) comprises a rotating disk (51) rotatably connected to the inner top surface of a fixed frame (13) via a connecting shaft; four electric push rods (52) are fixedly connected to the bottom surface of the rotating disk (51) at equal angles in an annular manner; a cross-shaped fixing plate (53) rotatably connected to four connecting rods (21) is fixedly connected between the output ends of the four electric push rods (52); a driving motor (58) is fixedly connected to the top surface of the fixed frame (13); and the output end of the driving motor (58) passes through the fixed frame (13) and is fixedly connected to the connecting shaft.

8. The guide bushing lubrication mechanism for an automobile steering gear according to claim 7, characterized in that: The top end of the outer wall of the connecting rod (21) is fixedly connected to a synchronous wheel 2 (29), the bottom surface of the cross-shaped fixed plate 2 (53) is annularly connected to four rotating shafts 2 for equal angle rotation, and the outer wall of the rotating shaft 2 is fixedly connected to a synchronous wheel 4 (54) connected to the synchronous wheel 2 (29) at the corresponding position through a synchronous belt 2.

9. The guide bushing lubrication mechanism for an automobile steering gear according to claim 8, characterized in that: The outer wall of the second rotating shaft is fixedly connected with a gear four (55), the top surface of the second cross-shaped fixing plate (53) is fixedly connected with a servo motor two (57), and the output end of the second servo motor (57) passes through the bottom surface of the second cross-shaped fixing plate (53) and is fixedly connected with a gear plate two (56) meshing with the four gear fours (55).

10. The guide bushing lubrication mechanism for an automobile steering gear according to claim 9, characterized in that: The vibration mechanism (7) comprises four sliding bars (71) distributed in a rectangular shape and fixedly connected to the top surface of the workbench (1); a storage bin (72) is slidably connected between the four sliding bars (71) at relative positions; a vibration motor (73) is fixedly connected to the bottom surface of the storage bin (72); a fixed frame (74) is fixedly connected to the outside of the storage bin (72) and is slidably penetrated by the four sliding bars (71) at corresponding positions; and support springs (75) fixedly connected to the workbench (1) are fixedly connected at four corners of the bottom surface of the fixed frame (74) and located on the outside of the sliding bars (71).

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