Engine connecting rod lubricator
The engine connecting rod oiling machine, designed with modular interfaces and snap-fit components, solves the problem of adapting existing equipment to connecting rods of different sizes and structures, achieving an efficient and safe oiling process, and improving production efficiency and the applicability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANJIAO KANGSHENG ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-31
AI Technical Summary
Existing engine connecting rod oiling machines cannot effectively adapt to connecting rods of different sizes and structures, resulting in low production efficiency, high labor intensity, and safety hazards.
A modular engine connecting rod oiling machine was designed, which adopts modular interfaces and snap-fit components, enabling quick replacement and adjustment of the clamping frame opening. It is compatible with connecting rods of various sizes and structures. Combined with a semi-enclosed structure and oil mist processor, it achieves efficient oiling and reduces pollution.
It achieves efficient and compatible clamping of connecting rods of different specifications, simplifies the changeover process, improves production continuity and safety, reduces the intensity of manual intervention, and reduces equipment downtime and oil waste.
Smart Images

Figure CN224573932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connecting rod oiling technology, and in particular to an engine connecting rod oiling machine. Background Technology
[0002] Connecting rods are one of the five major components of an engine, and their quality directly affects the engine's performance and safety. The maintenance process from the finished connecting rod manufacturing stage until assembly directly impacts quality; to achieve rust prevention, the finished connecting rods are oiled and packaged.
[0003] Publication No. "CN204134818U" discloses an engine connecting rod oiling machine, which aims to solve the problem that the oiling and packaging of finished connecting rods is currently done manually, resulting in high labor intensity, low production efficiency, and environmental pollution, and in severe cases, production accidents. The key technical feature of this invention is the semi-enclosed outer shell surrounding the support frame… This semi-enclosed structure prevents waste of rust-preventive oil, ensures the connecting rod moves forward at a uniform speed during the coating process, and guarantees even application of the rust-preventive oil. An oil mist processor is also included to centrally treat any excess rust-preventive oil, reducing pollution. This invention also features a simple structure, easy operation, strong practicality, and energy saving and emission reduction.
[0004] Existing engine connecting rod oiling machines cannot effectively handle different connecting rods. Most can only handle connecting rods of a single size and perform oiling processing. The overall function of the device is relatively simple and cannot well adapt to different working needs. Therefore, this application provides an engine connecting rod oiling machine to meet the needs. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide an engine connecting rod oiling machine to solve the existing problems.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] An engine connecting rod oiling machine includes an oiling tank, a processing box installed at the top of the oiling tank, a processing cavity installed inside the processing box, a nozzle installed inside the processing cavity, and a conduit installed on the outer side of the processing box. Several conduits are connected by a connecting pipe, and the conduits are connected to the nozzle.
[0008] A guide rail is installed at the top of the oiling tank, a first receiving seat is mounted on the guide rail, a receiving plate is mounted at the top of the first receiving seat, a snap-fit assembly is mounted at the top of the receiving plate, and a crankshaft connecting rod is snap-fitted onto the snap-fit assembly.
[0009] Preferably, the snap-fit assembly includes a base fixed to the top of the receiving plate, with symmetrical sliding cavities on the base, and clamping plates slidably disposed in the sliding cavities. C-shaped clamping frames protrude from the top of both clamping plates, and the crankshaft connecting rod is snap-fitted and installed in the clamping frames.
[0010] Preferably, a sliding block is provided protruding from the bottom of the clamping plate, the sliding block is slidably disposed in the sliding cavity, and a fixing bolt is threaded on the sliding block, the bottom of the fixing bolt pressing against the sliding cavity.
[0011] Preferably, the sliding block is convex in shape, and an inclined plate is fixed between the sliding block and the clamping plate.
[0012] Preferably, a scale plate is symmetrically embedded on one side of the base, and length scale lines are engraved on the scale plate.
[0013] Preferably, the first receiving seat has a slot, and the bottom of the receiving plate has a protruding insert, which is inserted into the slot.
[0014] Preferably, a positioning hole is drilled on one side of the insert block, and a positioning bolt is threaded onto one side plate of the first receiving seat. One end of the positioning bolt extends into the slot, and the positioning hole and the positioning bolt are engaged.
[0015] Preferably, the bottom of the first receiving seat is symmetrically provided with movable wheels, and a stepper motor that drives one of the movable wheels to rotate is installed inside the first receiving seat.
[0016] Preferably, protruding strips are symmetrically provided on both sides of the guide rail, and a groove for the protruding strips is provided on the outer edge of the middle section of the receiving plate.
[0017] Preferably, both ends of the processing box are fixed with a fixing frame, and a blocking curtain is provided on the fixing frame.
[0018] Compared with the prior art, this utility model has at least the following beneficial effects:
[0019] In the above solution, the vertical insertion structure of the receiving plate and the slot of the first receiving seat at the top end end gives the equipment a high degree of modularity. Users can quickly replace receiving plates of different specifications according to the shape of the connecting rod or process requirements without complex disassembly and assembly of the entire machine. This design greatly expands the applicability of the equipment, making it compatible with various structural forms such as straight connecting rods and forked connecting rods. The modular interface is mechanically locked through positioning bolts, ensuring connection rigidity while simplifying operation steps, effectively shortening equipment downtime, and improving production continuity.
[0020] The snap-fit assembly, through its sliding engagement design between the sliding cavity and the clamping plate, enables compatible clamping of crankshaft connecting rods of different specifications. Operators can quickly adjust the opening of the clamping frame by adjusting the fixing bolts, adapting to various connecting rod sizes without the need for changing to special tooling. This design not only simplifies the changeover process but also significantly improves the equipment's responsiveness to the demands of multi-variety, small-batch production. The vertical envelope structure of the C-type clamping frame stably fixes the connecting rod end, preventing displacement caused by vibration during oiling, ensuring spraying position accuracy, reducing manual intervention, and improving operational safety. Attached Figure Description
[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.
[0022] Figure 1 A three-dimensional structural diagram of an engine connecting rod oiling machine;
[0023] Figure 2 Engine connecting rod oiling machine Figure 1 Enlarged structural diagram at point A;
[0024] Figure 3 A schematic diagram of the structure of the engine connecting rod oiling machine receiving plate and the snap-fit assembly;
[0025] Figure 4 This is a longitudinal sectional view of the first bearing seat of the engine connecting rod oiling machine.
[0026] [Figure Labels]
[0027] 1. Oiling tank; 2. Conductor pipe; 3. Conduit pipe; 4. Guide rail; 41. Protruding strip; 5. First receiving seat; 51. Slot; 52. Moving wheel; 6. Stepper motor; 7. Receiving plate; 8. Insert block; 9. Positioning hole; 91. Positioning bolt; 10. Snap-fit assembly; 11. Base; 111. Scale plate; 12. Clamping plate; 121. Clamping frame; 13. Fixing bolt; 14. Crankshaft connecting rod; 15. Barrier curtain.
[0028] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0029] The engine connecting rod oiling machine provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.
[0030] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0031] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0032] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0033] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0034] like Figure 1As shown, an embodiment of this utility model provides an engine connecting rod oiling machine, including an oiling tank 1, a processing box installed at the top of the oiling tank 1, a processing cavity installed inside the processing box, a nozzle installed inside the processing cavity, a conduit 3 installed on the outer side of the processing box, several conduits 3 connected by a connecting pipe 2, the conduits 3 connected to the nozzle, and a fixing frame fixed at both ends of the processing box, with a blocking curtain 15 provided on the fixing frame.
[0035] By employing a flexible suspension design, the PVC barrier curtains 15 installed at both ends of the processing box automatically open and close as the first receiving seat 5 moves in and out, forming a semi-enclosed processing environment. This structure effectively intercepts oil mist splashes generated during the spraying process, preventing oil contamination of the workshop floor and equipment surfaces, and significantly reducing the frequency of cleaning and maintenance. Furthermore, the enclosed environment reduces waste caused by oil evaporation, and combined with an oil circulation and filtration system, it enables efficient utilization of the coating, meeting environmental protection requirements while reducing long-term operating costs.
[0036] like Figure 2 , Figure 3 and Figure 4 As shown, a guide rail 4 is installed at the top of the oiling tank 1. A first receiving seat 5 is mounted on the guide rail 4. A receiving plate 7 is installed at the top of the first receiving seat 5. A slot 51 is provided on the first receiving seat 5. An insert block 8 is protruding from the bottom of the receiving plate 7. The insert block 8 and the slot 51 are fitted together. A positioning hole 9 is drilled on one side of the insert block 8. A positioning bolt 91 is threaded on one side plate of the first receiving seat 5. One end of the positioning bolt 91 extends into the slot 51. The positioning hole 9 and the positioning bolt 91 are fitted together.
[0037] The receiving plate 7, located at the top of the first receiving seat 5, is vertically inserted into the slot 51 of the first receiving seat 5, giving the equipment a high degree of modularity. Users can quickly replace receiving plates 7 of different specifications according to the shape of the connecting rod or process requirements without complex disassembly and assembly of the entire machine. This design greatly expands the applicability of the equipment, making it compatible with various structural forms such as straight connecting rods and forked connecting rods. The modular interface is mechanically locked through positioning bolts 91, ensuring connection rigidity while simplifying operation steps, effectively shortening equipment downtime, and improving production continuity.
[0038] The first receiving seat 5 is symmetrically provided with a movable wheel 52 at the bottom. A stepper motor 6 is installed inside the first receiving seat 5 to drive the movable wheel 52 to rotate. Protruding strips 41 are symmetrically provided on both sides of the guide rail 4. A slot for the protruding strips 41 is opened on the outer edge of the middle section of the receiving plate 7.
[0039] A snap-fit assembly 10 is installed at the top of the receiving plate 7. A crankshaft connecting rod 14 is snap-fitted onto the snap-fit assembly 10. The snap-fit assembly 10 includes a base 11 fixed at the top of the receiving plate 7. A sliding cavity is symmetrically opened on the base 11. A clamping plate 12 is slidably arranged in the sliding cavity. A C-shaped clamping frame 121 is protruding from the top of each of the two clamping plates 12. The crankshaft connecting rod 14 is snap-fitted into the clamping frame 121. A sliding block is protruding from the bottom of the clamping plate 12. The sliding block is convex in shape. An inclined plate is fixed between the sliding block and the clamping plate 12. The sliding block is slidably arranged in the sliding cavity. A fixing bolt 13 is threaded onto the sliding block. The bottom of the fixing bolt 13 is pressed against the sliding cavity. A scale plate 111 is symmetrically embedded on one side of the base 11. Length scale lines are engraved on the scale plate 111.
[0040] The snap-fit assembly 10, through its sliding engagement with the clamping plate 12, enables compatible clamping of crankshaft connecting rods 14 of different specifications. Operators can quickly adjust the opening of the clamping frame 121 by adjusting the fixing bolts 13, adapting to various connecting rod sizes without the need for specialized tooling. This design not only simplifies the changeover process but also significantly improves the equipment's responsiveness to the demands of multi-variety, small-batch production. The vertical envelope structure of the C-type clamping frame 121 stably secures the connecting rod end, preventing displacement due to vibration during oiling, ensuring spraying position accuracy, reducing manual intervention, and improving operational safety.
[0041] The working principle of the technical solution provided by this utility model is as follows:
[0042] Before the engine connecting rod oiling machine performs connecting rod oiling operations through the processing box on the top of the oiling tank 1, the operator inserts both ends of the crankshaft connecting rod 14 into the C-shaped clamping frame 121 of the clamping assembly 10. The clamping plate 12 slides horizontally along the sliding cavity of the base 11 to adapt to the connecting rod width and is tightened by the fixing bolt 13. In order to adapt to the processing of a single-size connecting rod, the receiving plate 7 is vertically inserted into the slot 51 of the first receiving seat 5 through the bottom insert 8, and the mechanical locking is completed by rotating the positioning bolt 91.
[0043] Stepper motor 6 drives moving wheel 52 to rotate, causing first receiving seat 5 to move along guide rail 4. The protruding strips 41 on both sides of guide rail 4 engage with the slots of receiving plate 7 to ensure smooth movement. After the connecting rod enters the processing box, the nozzle delivers oil through conduit 3 and connecting pipe 2 to perform rotary spraying on the surface of the connecting rod.
[0044] The blocking curtains 15 at both ends of the processing box open and close automatically as the first receiving seat 5 moves in and out to prevent oil from splashing. After oiling is completed, the first receiving seat 5 moves out of the processing chamber along the guide rail 4, completing a single operation cycle.
[0045] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An engine connecting rod oiling machine characterized by, The device includes an oiling tank, a processing box installed at the top of the oiling tank, a processing chamber installed inside the processing box, a nozzle installed inside the processing chamber, and a conduit installed on the outer side of the processing box. Several conduits are connected by a connecting pipe, and the conduits are connected to the nozzle. A guide rail is installed at the top of the oiling tank, a first receiving seat is mounted on the guide rail, a receiving plate is mounted at the top of the first receiving seat, a snap-fit assembly is mounted at the top of the receiving plate, and a crankshaft connecting rod is snap-fitted onto the snap-fit assembly.
2. The engine connecting rod oiler machine of claim 1, wherein, The snap-fit assembly includes a base fixed to the top of the receiving plate, with symmetrical sliding cavities on the base. Clamping plates are slidably arranged in the sliding cavities, and C-shaped clamping frames protrude from the top of each of the two clamping plates. The crankshaft connecting rod is snap-fitted and installed in the clamping frames.
3. The engine connecting rod oiler machine of claim 2, wherein, The clamping plate has a protruding sliding block at its bottom, which is slidably disposed in the sliding cavity. A fixing bolt is threaded onto the sliding block, and the bottom of the fixing bolt is pressed against the sliding cavity.
4. The engine connecting rod lubricator of claim 3 wherein, The sliding block is convex in shape, and an inclined plate is fixed between the sliding block and the clamping plate.
5. The engine connecting rod lubricator of claim 4 wherein, A scale plate is symmetrically embedded on one side of the base, and length scale lines are engraved on the scale plate.
6. The engine connecting rod lubricator of claim 1 wherein, The first receiving seat has a slot, and the bottom of the receiving plate has a protruding plug, which is inserted into the slot.
7. The engine connecting rod lubricator of claim 6 wherein, A positioning hole is drilled on one side of the insert block, and a positioning bolt is threaded onto one side plate of the first receiving seat. One end of the positioning bolt extends into the slot, and the positioning hole and the positioning bolt are engaged.
8. The engine connecting rod lubricator of claim 7 wherein, The first receiving seat has symmetrically rotatably mounted casters at its bottom, and a stepper motor that drives one of the casters to rotate is installed inside the first receiving seat.
9. The engine connecting rod lubricator of claim 8 wherein, Symmetrical protruding strips are provided on both sides of the guide rail, and a slot for the protruding strips is provided on the outer edge of the middle section of the receiving plate.
10. The engine connecting rod lubricator of claim 1 wherein, Both ends of the processing box are fixed with fixed frames, and the fixed frames are equipped with blocking curtains.