A fuel spray device for the axle fork inner cavity
By designing an oil mist spraying device for the inner cavity of the shaft fork in the forging workshop, and utilizing a combination of articulated connecting rods and sensors, the problems of inaccurate spray positioning and manual oil spraying in oil mist environments were solved, achieving the accuracy and safety of automated oil mist spraying and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI GKN DRIVE SYST
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-14
Smart Images

Figure CN224486433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an oil injection device, and more particularly to the technical field of an oil mist injection device for the inner cavity of a shaft fork. Background Technology
[0002] Effective lubrication of the shaft fork's inner cavity during the forging process is crucial for ensuring product quality. However, due to the unique environment of the forging workshop and the special structure of the shaft fork's inner cavity, both automated spray lubrication and manual oil immersion lubrication have their limitations.
[0003] One issue is that the large amount of oil mist in the spray booth filling the space above the conveyor line makes it difficult for traditional laser-based positioning switches to function properly. Specifically, the oil mist scatters light, causing reflection and refraction in the sensor's optical path, leading to signal distortion and misjudgment. This severely affects the accuracy of spray positioning and ultimately causes the automated spray system to fail.
[0004] Manual oil immersion has two main drawbacks. First, it's difficult for operators to ensure even lubricant coverage within the shaft fork cavity, especially in complex areas where incomplete coverage is common. Second, the shaft fork cavity's unique design, typically located at the rear, necessitates placing the oil spraying device behind the workpiece for effective coating. This arrangement not only increases equipment installation complexity but also poses a safety hazard and impacts production efficiency during continuous production, as the rear-mounted oil spraying device is prone to interference and collisions with subsequently transported workpieces. Utility Model Content
[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an oil mist spraying device for the inner cavity of the shaft fork, so as to solve the problems that the prior art cannot use a laser positioning switch and requires a reciprocating up and down oil spraying device.
[0006] To achieve the above and other related objectives, this utility model provides an oil mist spraying device for the inner cavity of a shaft fork, comprising:
[0007] A fixing plate, which is mounted on the conveyor line of the shaft fork;
[0008] A folding arm type connecting rod is provided, with its bent portion rotatably connected to an extension rod, the upper end of which is connected to the lower surface of the fixed plate; an oil injector is provided at the downward-facing end of the folding arm type connecting rod, the oil injector being connected to the outlet end of an oil pipe; the oil pipe is arranged along the folding arm type connecting rod to its bent portion, and the oil pipe is connected to an oil supply source via a U-shaped oil pipe;
[0009] A push rod is slidably connected to the fixed plate; the lower end of the push rod abuts against the protrusion at the bend of the articulated connecting rod; a sensor is provided on the side of the push rod, and the sensor is connected to the oil supply source.
[0010] Preferably, the fixed plate is further provided with a sliding assembly, which includes a slider and a telescopic cylinder; the slider is slidably connected to the fixed plate, and the sliding direction of the slider is along the direction of the conveyor line; one end of the telescopic cylinder is connected to the slider, and the other end of the telescopic cylinder is disposed on the fixed plate.
[0011] Preferably, both the extender rod and the push rod are connected to the slider.
[0012] Preferably, one end of the telescopic cylinder is connected to the upper end of the extension rod.
[0013] Preferably, the articulated link includes a rod, a counterweight rod, and the protrusion; the rod and the counterweight rod are arranged at an obtuse angle; the protrusion is provided at the connection between the rod and the counterweight rod.
[0014] Preferably, the profile at the point where the protrusion abuts the push rod is arc-shaped.
[0015] Preferably, the protrusion is provided with multiple through holes.
[0016] Preferably, the lower end of the extension rod is provided with a horizontal auxiliary rod, one end of the U-shaped oil pipe is connected to the horizontal auxiliary rod, and the other end of the U-shaped oil pipe is connected to the oil supply source.
[0017] Preferably, the extension rod is provided with a plurality of mounting holes along its axial direction.
[0018] Preferably, the telescopic cylinder is hinged to the mounting base, and the mounting base is fixed to the fixing plate.
[0019] As described above, the complete utility model name of this utility model has the following beneficial effects:
[0020] This invention uses a hinged linkage to sense the passing of the shaft fork below, thus accurately determining whether the shaft fork is located below the device when the laser sensor is unavailable, thereby enabling the spraying of oil mist into the inner cavity of the shaft fork; this invention also uses a sensor to sense the up-and-down movement of the push rod to determine whether the shaft fork has passed by, thereby sending a signal to the oil supply source to achieve the spraying of oil mist into the rear cavity of the shaft fork. Attached Figure Description
[0021] Figure 1 The image shown is a cross-sectional view of an oil spraying device for the inner cavity of a shaft fork according to this utility model.
[0022] Figure 2 The image shown is a top view of an oil spraying device for the inner cavity of a shaft fork according to this utility model.
[0023] Figure 3 The diagram shows an oil mist spraying device for the inner cavity of a shaft fork according to this utility model and a workpiece before they are touched.
[0024] Figure 4 The diagram shows an oil spraying device for the inner cavity of a shaft fork and a workpiece contact.
[0025] Figure 5 The diagram shows an oil spraying device for the inner cavity of a shaft fork according to the present invention and a workpiece that continues to move after being touched by the workpiece.
[0026] Figure 6 The diagram shows an oil mist spraying device for the inner cavity of a shaft fork extending toward the cavity behind the workpiece.
[0027] Component designation explanation
[0028] 01 Axle Fork
[0029] 1. Fixing plate
[0030] 11 Sliding Components
[0031] 111 Slider
[0032] 112 Telescopic Cylinder
[0033] 2. Knuckle arm type connecting rod
[0034] 201 oil pipe
[0035] 202 U-shaped tubing
[0036] 21 rods
[0037] 22 Counterweight rods
[0038] 23. Protrusion
[0039] 3. Extend the rod
[0040] 4. Push rod
[0041] 41 Sensors
[0042] 5. Oil supply source Detailed Implementation
[0043] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0044] Please see Figures 1 to 6It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0045] like Figure 1 As shown, this utility model provides an oil mist spraying device for the inner cavity of a shaft fork, comprising:
[0046] Fixed plate 1 is installed on the conveyor line of shaft fork 01;
[0047] The articulated link 2 has a bend that is rotatably connected to the extension rod 3, and the upper end of the extension rod 3 is connected to the lower surface of the fixed plate 1; the downward-facing end of the articulated link 2 is provided with an oil injector 20, which is connected to the outlet end of the oil pipe 201; the oil pipe 201 is set along the articulated link to the bend of the articulated link, and the oil pipe 201 is connected to the oil supply source 5 through a U-shaped oil pipe 202;
[0048] like Figure 5 As shown, push rod 4 is slidably connected to fixed plate 1; the lower end of push rod 4 abuts against the bend of the folding arm type connecting rod 2 with protrusion 23; a sensor 41 is provided on the side of push rod 4, and the sensor 41 is connected to oil supply source 5 (oil supply source 5 is connected to fixed plate 1).
[0049] This invention uses a hinged linkage 2 to sense the passing of the shaft fork 01 below, thus accurately determining whether the shaft fork 01 is below the device when the laser sensor is unavailable, thereby achieving oil mist spraying into the inner cavity of the shaft fork 01; this invention uses a sensor 41 to sense the up and down movement of the push rod 4, thereby determining whether the shaft fork 01 has passed by, and sending a signal to the oil supply source 5 to achieve oil mist spraying into the rear cavity of the shaft fork 01.
[0050] like Figure 2 As shown, in this embodiment, the fixed plate 1 is also provided with a sliding assembly 11, which includes a slider 111 and a telescopic cylinder 112; the slider 111 is slidably connected to the fixed plate 1, and the sliding direction of the slider 111 is along the direction of the conveyor line; one end of the telescopic cylinder 112 is connected to the slider 111, and the other end of the telescopic cylinder 112 is provided on the fixed plate 1.
[0051] like Figure 2 and 3 As shown, in this embodiment, both the extender rod 3 and the push rod 4 are connected to the slider 111. The upper end of the extender rod 3 is fixed to the slider 111, while the push rod 4 is slidably connected to the slider 111 through a through hole.
[0052] like Figure 2 As shown, one end of the telescopic cylinder 112 is connected to the upper end of the extension rod 3. When the telescopic cylinder 112 extends or retracts, it can move the extension rod 3, causing the slider 111 to move together, thereby causing the connected push rod 4 and the lower articulated connecting rod 2 to move together.
[0053] like Figure 3 As shown, in this embodiment, the articulated link 2 includes a link 21, a counterweight link 22, and a protrusion 23; the link 21 and the counterweight link 22 are set at an obtuse angle; the protrusion 23 is provided at the connection between the link 21 and the counterweight link 22. An oil nozzle 20 is provided at the lower end of the link 21, and the orientation of the oil nozzle 20 must be parallel to the axis of the shaft fork 01, so that oil mist can be sprayed into the cavity of the shaft fork 01.
[0054] like Figure 3 As shown, the profile of the contact point between the protrusion 23 and the push rod 4 is arc-shaped, which reduces the friction between the push rod 4 and the protrusion 23 and avoids the problem of the push rod 4 and the protrusion 23 getting stuck. The protrusion 23 is provided with multiple through holes. By opening through holes on the protrusion 23, the weight of the protrusion 23 can be effectively reduced, and the center of gravity of the entire articulated link 2 can be prevented from shifting due to the excessive weight of the protrusion 23. This would prevent the articulated link 2 from moving as expected, and thus make it impossible to accurately determine the position of the shaft fork 01.
[0055] like Figure 3 As shown, a horizontal auxiliary rod 31 is provided at the lower end of the extension rod 3. One end of the U-shaped oil pipe 202 is connected to the horizontal auxiliary rod 31, and the other end of the U-shaped oil pipe 202 is connected to the oil supply source 5.
[0056] like Figure 3 As shown, the extension rod 3 is provided with multiple mounting holes along its axial direction; the bent part of the articulated link 2 is rotatably connected to the mounting hole, and the height of the articulated link 2 can be adjusted by rotatably connecting the articulated link 2 to different mounting holes, thereby adapting to different specifications of shaft forks 01.
[0057] like Figure 1 As shown, one end of the sliding block 111 of the telescopic cylinder 112 is hinged to the mounting base 112a, which is fixed to the fixing plate 1.
[0058] In addition to the above embodiments, such as Figures 1 to 6As shown, this utility model also has a working method:
[0059] like Figure 3 As shown, at this moment, the workpiece (shaft fork 01) is about to approach the articulated connecting rod 2; as Figure 3 As shown, the workpiece moves to the left on the conveyor line until it touches the articulated link 2.
[0060] like Figure 4 As shown, at this time, the workpiece moves to the left and pushes the articulated link 2 upward. The articulated link 2 will rotate, thereby rotating the protrusion 23 of the articulated link 2. The protrusion 23 will push the push rod 4 upward by abutting against the push rod 4. At this time, the sensor 41 will sense the up and down movement of the push rod 4, thereby prompting the oil supply source 5 to deliver oil to the injector 20, and prepare to start oil injection.
[0061] like Figure 5 As shown, at this time, the workpiece has moved to the left of the articulated link 2, and the fuel injector 20 is ready to inject fuel.
[0062] like Figure 6 As shown, at this time, the workpiece has moved to the left of the articulated link 2, and the oil injector 20 needs to be moved into the cavity of the workpiece. At this time, the telescopic cylinder 112 pushes the slider 111 to move to the cavity close to the workpiece, and sprays oil mist into the rear cavity of the workpiece through the oil injector 20.
[0063] In summary, this utility model, by setting the articulated connecting rod 2, can determine in real time whether the workpiece is in the oil spraying position, reducing the inaccuracy of laser testing (due to the floating of oil mist) and the inability to preset the oil spraying time of the oil nozzle 20 due to the uncertain distance between workpieces; at the same time, this utility model also aims to realize the spraying of oil mist into the inner cavity of the shaft fork through automation, reducing the labor cost required for manual spraying and reducing the time and labor costs caused by manual spraying.
[0064] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.
[0065] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. An oil mist spraying device for the inner cavity of a shaft fork, characterized in that, include: A fixing plate, which is mounted on the conveyor line of the shaft fork; A folding arm type connecting rod is provided, with its bent portion rotatably connected to an extension rod, the upper end of which is connected to the lower surface of the fixed plate; an oil injector is provided at the downward-facing end of the folding arm type connecting rod, the oil injector being connected to the outlet end of an oil pipe; the oil pipe is arranged along the folding arm type connecting rod to its bent portion, and the oil pipe is connected to an oil supply source via a U-shaped oil pipe; A push rod is slidably connected to the fixed plate; the lower end of the push rod abuts against the protrusion at the bend of the articulated connecting rod; a sensor is provided on the side of the push rod, and the sensor is connected to the oil supply source.
2. The oil mist spraying device for the inner cavity of a shaft fork according to claim 1, characterized in that: The fixed plate is also provided with a sliding assembly, which includes a slider and a telescopic cylinder; the slider is slidably connected to the fixed plate, and the slider slides in the direction of the conveyor line; one end of the telescopic cylinder is connected to the slider, and the other end of the telescopic cylinder is located on the fixed plate.
3. The oil mist spraying device for the inner cavity of a shaft fork according to claim 2, characterized in that: Both the extender rod and the push rod are connected to the slider.
4. The oil mist spraying device for the inner cavity of a shaft fork according to claim 2, characterized in that: One end of the telescopic cylinder is connected to the upper end of the extension rod.
5. The oil mist spraying device for the inner cavity of a shaft fork according to claim 1, characterized in that: The articulated link includes a rod, a counterweight rod, and the protrusion; the rod and the counterweight rod are set at an obtuse angle; the protrusion is provided at the connection between the rod and the counterweight rod.
6. The oil mist spraying device for the inner cavity of a shaft fork according to claim 1, characterized in that: The protrusion and the push rod abut against each other in an arc shape.
7. The oil mist spraying device for the inner cavity of a shaft fork according to claim 1, characterized in that: The protrusion is provided with multiple through holes.
8. The oil mist spraying device for the inner cavity of a shaft fork according to claim 1, characterized in that: The lower end of the extension rod is provided with a horizontal auxiliary rod, one end of the U-shaped oil pipe is connected to the horizontal auxiliary rod, and the other end of the U-shaped oil pipe is connected to the oil supply source.
9. The oil mist spraying device for the inner cavity of a shaft fork according to claim 1, characterized in that: The extension rod is provided with a plurality of mounting holes along its axial direction.
10. The oil mist spraying device for the inner cavity of a shaft fork according to claim 2, characterized in that: The telescopic cylinder is hinged to the mounting base, and the mounting base is fixed to the fixing plate.