Wiper motor worm oiling device

Abstract

The utility model discloses a wiper motor worm oiling device belongs to wiper motor technical field, the problem that the existing technology due to the adoption manual wiper motor worm is oiled and leads to the existence oiling consistency difference and the low oiling efficiency is solved, it includes base, is provided with the fixed support and fixed support for fixing wiper motor on the base, the fixed support is fixed with telescopic pneumatic cylinder, the piston rod of telescopic pneumatic cylinder is fixed with the nozzle, and the oil inlet of nozzle is communicated with the grease ration valve fixed on the fixed support. The nozzle of the utility model moves to the worm right above under the drive of telescopic pneumatic cylinder and carries out quantitative oil injection to the worm through the grease ration valve, not only realizes the automatic oiling of worm, reduces the manual labor intensity and improves the oiling efficiency, and the grease ration valve ensures the constant oil amount, eliminates the uneven thickness of oiling, and significantly improves the oiling consistency.

Description

Technical Field

[0001] This utility model relates to the field of wiper motor technology, specifically to a wiper motor worm gear oiling device. Background Technology

[0002] Currently, lubricating the worm gear of automotive wiper motors is done manually. Operators must use a handheld lubricating device to apply grease to the worm gear surface, then adjust the amount and coverage by visual inspection and experience. This traditional method suffers from difficulty in precisely controlling the uniformity and consistency of manual lubrication. Deviations in lubrication thickness can occur between different operators or at different times by the same operator, directly affecting the lubrication effect and lifespan of the worm gear transmission mechanism. Furthermore, manual lubrication is not only labor-intensive but also inefficient. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a wiper motor worm gear oiling device, which solves the problems of poor oiling consistency and low oiling efficiency caused by manual oiling of the wiper motor worm gear in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A wiper motor worm gear oiling device is provided, including a base, a fixing bracket and a fixing support for fixing the wiper motor are provided on the base, a telescopic cylinder connected to an air circuit assembly is fixed on the fixing support, a nozzle is fixed on the piston rod of the telescopic cylinder, and the oil inlet of the nozzle is connected to a grease metering valve fixed on the fixing support; wherein, the nozzle moves vertically downward through the piston rod to directly above the worm gear of the wiper motor and sprays oil.

[0006] The beneficial effects of this solution are that the nozzle moves to directly above the worm gear under the drive of the telescopic cylinder and sprays oil onto the worm gear in a metered manner through the grease metering valve. This not only realizes the automated oiling of the worm gear, reducing manual labor intensity and improving oiling efficiency, but also ensures a constant oil volume by the grease metering valve, eliminating uneven oiling thickness and significantly improving oiling consistency.

[0007] Furthermore, the wiper motor includes a motor body and a turbine reducer housing for mounting the worm gear; the mounting bracket includes a base plate bolted to a base, and the base plate is provided with a U-shaped seat and a fixed seat for fixing the motor body and the turbine reducer housing, respectively. The motor body and the turbine reducer housing are fixed by the U-shaped seat and the fixed seat, respectively, achieving modular and rapid positioning and clamping of the wiper motor.

[0008] Furthermore, the opening of the U-shaped seat fits snugly against the outer wall of the motor body. This design, where the opening of the U-shaped seat fits snugly against the outer wall of the motor body, enhances the stability of the fixation, avoids positioning deviations caused by motor shaking during the oiling process, and ensures precise alignment of the nozzle and the worm gear.

[0009] Furthermore, the mounting base is a cuboid structure bolted to the base plate. Positioning holes are provided in the center of the top surface and on one side of the top surface of the mounting base. Both positioning holes are used to mate with two positioning posts located on the bottom of the worm gear reducer housing. The two positioning posts are respectively clearance-fitted with the two positioning holes. This clearance-fit design between the positioning holes and the positioning posts at the bottom of the worm gear reducer housing enables rapid self-positioning installation of the worm gear reducer housing, reduces manual calibration steps, and ensures the axial alignment accuracy of the worm gear and the nozzle.

[0010] Furthermore, lifting handles are provided on both sides of the base plate. The lifting handles are designed to facilitate the movement of the fixed support by the operator during installation.

[0011] Furthermore, the fixed support includes a vertical frame and a crossbeam fixed to the top of the vertical frame, with a telescopic cylinder vertically fixed to the end of the crossbeam.

[0012] Furthermore, two guide rods are slidably installed inside the telescopic cylinder, symmetrically positioned on both sides of the piston rod. Each guide rod and the piston rod are fixedly connected to a connecting plate, and the nozzle is fixed to the connecting plate and located directly above the worm gear. The symmetrical guide rods move synchronously with the piston rod, enhancing the stability of the nozzle's downward pressing process and preventing tilting caused by unilateral force on the cylinder.

[0013] Furthermore, the pneumatic circuit assembly includes a cylinder solenoid directional valve connected to the telescopic cylinder; the cylinder solenoid directional valve is connected to the air source via an air pipe and is electrically connected to the controller. The pneumatic circuit assembly achieves automated control of cylinder lifting and lowering through the solenoid directional valve and the controller.

[0014] Furthermore, the controller is electrically connected to the button box. The buttons on the button box support one-button operation, facilitating the raising and lowering of the telescopic cylinder.

[0015] Furthermore, the grease metering valve is fixed on the stand and connected to the oil pump. The connection between the grease metering valve and the oil pump ensures continuous and controllable grease supply, avoids oil volume fluctuations caused by manual filling, and guarantees the long-term stability of the coating volume. Attached Figure Description

[0016] Figure 1 A schematic diagram of the oiling device for the worm gear of a windshield wiper motor;

[0017] Figure 2 Axonometric drawing of the worm gear oiling device for a windshield wiper motor;

[0018] Figure 3This is a top view of the fixed support;

[0019] The components are as follows: 100, base; 200, fixed support; 21, bottom plate; 211, lifting handle; 22, U-shaped seat; 23, fixed seat; 231, positioning hole; 300, fixed bracket; 31, upright frame; 32, crossbeam; 400, telescopic cylinder; 41, piston rod; 42, guide rod; 43, cylinder solenoid reversing valve; 500, nozzle; 51, grease metering valve; 600, button box; 700, wiper motor; 71, motor body; 72, turbine reducer housing; 721, worm gear. Detailed Implementation

[0020] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0021] Considering that existing technologies rely on manual oiling of wiper motor worm gears, resulting in poor oiling consistency and low oiling efficiency, this application provides a wiper motor worm gear oiling device to address these issues. This device utilizes a telescopic cylinder 400 mounted on a fixed bracket 300. The moving end of the telescopic cylinder 400 is connected to a nozzle 500, which communicates with a grease metering valve 51. Driven by the telescopic cylinder 400, the nozzle 500 moves to a position directly above the worm gear 721, and the grease metering valve 51 dispenses a metered amount of oil to the worm gear 721. This not only automates oiling of the worm gear 721, reducing manual labor and improving oiling efficiency, but also ensures a constant oil volume through the grease metering valve 51, eliminating uneven oil thickness and significantly improving oiling consistency. A detailed demonstration follows.

[0022] refer to Figure 1 A wiper motor worm gear oiling device includes a base 100, on which a fixed support 200 and a fixed bracket 300 are provided.

[0023] The mounting bracket 200 is used to fix the wiper motor 700. Specifically, the wiper motor 700 includes a motor body 71 and a turbine reducer housing 72 for mounting the worm gear 721. The mounting bracket 200 includes a base plate 21 bolted to the base 100, and a lifting handle 211 is provided on both sides of the base plate 21.

[0024] refer to Figure 3The base plate 21 is provided with a U-shaped seat 22 and a fixing seat 23 for fixing the motor body 71 and the worm gear reducer housing 72, respectively. The opening of the U-shaped seat 22 fits against the outer wall of the motor body 71. The fixing seat 23 is a cuboid structure bolted to the base plate 21. The fixing seat 23 has positioning holes 231 in the middle of the top surface and on one side of the top surface. Both positioning holes 231 are used to cooperate with two positioning pins located at the bottom of the worm gear reducer housing 72. The two positioning pins are respectively clearance-fitted with the two positioning holes 231.

[0025] In this embodiment, the motor body 71 and the turbine reducer housing 72 are fixed by the U-shaped seat 22 and the fixed seat 23 respectively, realizing the modular quick positioning and clamping of the wiper motor 700. Preferably, considering that the wiper motor 700 has two models with the turbine reducer housing 72 located on the left and right sides of the motor body 71 respectively, two positioning holes 231 are symmetrically provided on both sides of the top surface of the fixed seat 23.

[0026] A telescopic cylinder 400 connected to the air circuit assembly is fixed on the fixed bracket 300. A nozzle 500 is fixed on the piston rod 41 of the telescopic cylinder 400. The oil inlet of the nozzle 500 is connected to the grease metering valve 51 fixed on the fixed bracket 300. The nozzle 500 moves vertically downward through the piston rod 41 to directly above the worm gear 721 of the wiper motor 700 and sprays oil.

[0027] For the specific structure of the fixed bracket 300, please refer to Figure 1 and Figure 2 The fixed bracket 300 includes a vertical frame 31 and a crossbeam 32 fixed to the top of the vertical frame 31. A telescopic cylinder 400 is vertically fixed to the end of the crossbeam 32. A grease metering valve 51 is fixed to the vertical frame 31 and connected to the oil pump. The connection between the grease metering valve 51 and the oil pump ensures continuous and controllable grease supply, avoiding fluctuations in oil volume caused by manual filling and guaranteeing long-term stability of the grease application rate.

[0028] Two guide rods 42 are slidably installed inside the telescopic cylinder 400. The two guide rods 42 are symmetrically located on both sides of the piston rod 41. Each guide rod 42 and the piston rod 41 are fixedly connected to the connecting plate. The nozzle 500 is fixed on the connecting plate and located directly above the worm gear 721. The symmetrical guide rods 42 move synchronously with the piston rod 41, enhancing the stability of the nozzle 500 during the downward pressing process and preventing tilting caused by unilateral force on the cylinder.

[0029] The pneumatic circuit assembly includes a cylinder solenoid directional valve 43 that is connected to the telescopic cylinder 400. The cylinder solenoid directional valve 43 is connected to the air source through an air pipe.

[0030] In this embodiment, the cylinder solenoid directional valve 43 is electrically connected to the controller, and the controller is electrically connected to the button box 600. The button on the button box 600 supports one-button operation, facilitating the control of the raising and lowering of the telescopic cylinder 400. Preferably, the cylinder solenoid directional valve 43 is model 4V130E06B, the grease metering valve 51 is model NBLD05, the controller is a PLC, and the button box 600 is model Harmony XB4. Since these are all existing technologies, their specific working principles and connection relationships will not be described in detail.

[0031] Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A windshield wiper motor worm gear oiling device, characterized in that, The device includes a base (100), on which a fixed support (200) and a fixed bracket (300) for fixing a wiper motor (700) are provided. A telescopic cylinder (400) connected to an air circuit assembly is fixed on the fixed bracket (300). A nozzle (500) is fixed on the piston rod (41) of the telescopic cylinder (400). The oil inlet of the nozzle (500) is connected to a grease metering valve (51) fixed on the fixed bracket (300). In use, the nozzle (500) moves vertically downward through the piston rod (41) to directly above the worm gear (721) of the wiper motor (700) and sprays oil.

2. The wiper motor worm gear oiling device according to claim 1, characterized in that, The wiper motor (700) includes a motor body (71) and a turbine reducer housing (72) for mounting a worm gear (721); The fixed support (200) includes a base plate (21) bolted to the base (100), and the base plate (21) is provided with a U-shaped seat (22) and a fixed seat (23) for fixing the motor body (71) and the turbine reducer housing (72) respectively.

3. The wiper motor worm gear oiling device according to claim 2, characterized in that, The opening of the U-shaped seat (22) is in contact with the outer wall of the motor body (71).

4. The wiper motor worm gear oiling device according to claim 2, characterized in that, The fixing seat (23) is a cuboid structure bolted to the base plate (21). The fixing seat (23) has positioning holes (231) in the middle of the top surface and on one side of the top surface. The two positioning holes (231) are used to cooperate with two positioning pins located at the bottom of the turbine reducer housing (72). The two positioning pins are respectively clearance-fitted with the two positioning holes (231).

5. The wiper motor worm gear oiling device according to claim 2, characterized in that, Both sides of the base plate (21) are provided with lifting handles (211).

6. The wiper motor worm gear oiling device according to claim 1, characterized in that, The fixed bracket (300) includes a stand (31) and a crossbeam (32) fixed to the top of the stand (31), and the telescopic cylinder (400) is vertically fixed to the end of the crossbeam (32).

7. The wiper motor worm gear oiling device according to claim 6, characterized in that, Two guide rods (42) are slidably arranged inside the telescopic cylinder (400). The two guide rods (42) are symmetrically located on both sides of the piston rod (41). Each guide rod (42) and the piston rod (41) are fixedly connected to the connecting plate. The nozzle (500) is fixed on the connecting plate and located directly above the worm gear (721).

8. The wiper motor worm gear oiling device according to claim 7, characterized in that, The pneumatic circuit assembly includes a cylinder solenoid directional valve (43) connected to the telescopic cylinder (400); the cylinder solenoid directional valve (43) is connected to the air source through an air pipe and is electrically connected to the controller.

9. The wiper motor worm gear oiling device according to claim 8, characterized in that, The controller is electrically connected to the button box (600).

10. The wiper motor worm gear oiling device according to claim 6, characterized in that, The grease metering valve (51) is fixed on the stand (31) and connected to the oil pump.

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