Bearing oiling apparatus

Abstract

The application relates to the technical field of bearing lubricating equipment, in particular to a bearing oil injection equipment which comprises a lubricating grease container provided with a conical opening at the top for close cooperation with a tapered roller bearing; a fastening structure provided with a positioning piece for limiting the radial movement of the tapered roller bearing and an observation window for observing the lubricating grease injection state; a piston arranged in the inner cavity of the lubricating grease container and in sealed cooperation with the inner wall of the lubricating grease container to reciprocate along the axial direction; a driving structure for driving the piston to push the lubricating grease into the bearing; an outer shell for containing the above-mentioned structures as an integrated structure; the bottom of the lubricating grease container is provided with a gas permeation hole to release the air pressure in the cavity during the movement; the piston, the lubricating grease container and the fastening structure surround a closed cavity to contain the lubricating grease and surround the bearing, so that the sealing property, stability and controllability of the lubricating grease injection process are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing lubrication equipment, and particularly relates to a bearing oil injection equipment. BACKGROUND

[0002] Tapered roller bearings are widely used in automobiles, engineering machinery and heavy industrial equipment due to their good axial load bearing capacity and guiding characteristics. To ensure their long-term stable operation under high load conditions, the bearing lubrication process is crucial. The existing bearing grease injection methods mainly include the use of manual oil injection guns, grease injection nozzles, centralized lubrication systems or piston type grease injection devices. These methods have been relatively mature when injecting grease into standard ball bearings or straight cylinder type roller bearings, and can meet the basic lubrication requirements. However, tapered roller bearings have a unique conical raceway structure, which puts higher requirements on the directionality and uniformity of grease injection. The existing grease injection devices generally lack special adaptation design for this structure.

[0003] In the prior art, there are still the following main technical problems in the lubrication application of tapered roller bearings: First, due to the conical path of the bearing raceway, the lubricating grease needs to be uniformly filled in the axial and radial composite direction. The traditional grease injection method is difficult to adapt to this path, often leading to uneven lubrication of the raceway and forming a lubrication blind area. Second, the existing grease injection devices generally do not have an intuitive judgment mechanism for the completion state of grease injection, and the operator needs to rely on experience to control, which can easily cause insufficient or excessive grease injection, affecting the lubrication effect and material utilization rate. In addition, the traditional devices are mostly general structures, lacking positioning and sealing matching mechanisms that match the bearing conical surface structure. During the grease injection process, the bearing is prone to shift, loosen or leak grease, which is not conducive to improving the consistency, controllability and cleanliness of the lubrication process.

[0004] Therefore, the bearing oil injection equipment in the prior art has the technical problems of insufficient lubrication path matching, invisible grease injection state, poor structure adaptation, and low standardization of lubrication operation, which leads to difficulty in guaranteeing lubrication efficiency and precision, reduces the reliability of bearing operation, and is not conducive to standardizing and controlling the grease injection process during assembly or maintenance. SUMMARY

[0005] The present application aims to at least solve one of the technical problems in the prior art. To this end, one object of the present application is to provide an automatic sequencing reagent device for multiplex PCR library construction, comprising:

[0006] In one possible embodiment, a bearing grease injection device is provided, comprising: a grease container, the grease container being a hollow cylindrical structure, the top of the grease container having a conical opening for a tight fit with a tapered roller bearing to be greased; a fastening structure, the fastening structure being detachably connected to the conical opening and having a positioning element for limiting the radial movement of the tapered roller bearing, and an observation window for observing the grease injection status; and a piston, the piston being disposed within the cavity of the grease container and sealingly fitted with the inner wall of the grease container so as to be able to inject grease along the axial direction of the grease container. The system comprises: a reciprocating motion mechanism; a drive structure for driving the piston to move back and forth along the axis of the grease container to inject grease into the bearing; a housing for housing the grease container, fastening structure, piston, and drive structure as a single unit; a vent hole at the bottom of the grease container to release air pressure within the cavity during piston movement, preventing piston obstruction due to sealing; and a sealed cavity formed by the piston, grease container, and fastening structure to contain grease and surround the bearing to be greased, ensuring the sealing, stability, and controllability of the grease injection process.

[0007] In one possible implementation, the drive structure includes: a transmission rod, one end of which is fixedly connected to the piston, and the other end of which extends out of a grease container; a transmission member, which is drively connected to the second end of the transmission rod so that the transmission rod and the transmission member can move parallel to each other along the axial direction of the transmission rod; a transmission sleeve, which is fixedly connected to the transmission rod; and a threaded rod, which is threadedly connected to the transmission sleeve and is arranged parallel to the transmission rod; wherein, when the threaded rod rotates, the transmission sleeve and the transmission rod move vertically along the axial direction, thereby driving the piston to move synchronously.

[0008] In one possible implementation, the transmission component has a triangular structure, with the first end of the transmission component fixedly connected to the transmission sleeve, the second end of the transmission component overlapping the transmission rod, and the length of the first end being greater than the length of the second end.

[0009] In one possible implementation, the drive structure further includes a lubrication sleeve, which is fitted onto the threaded rod and fixedly mounted on the housing. The lubrication sleeve is rotatably connected to the threaded rod in the horizontal direction and restricts the axial displacement of the threaded rod in the vertical direction.

[0010] In one possible implementation, the lubrication sleeve includes: a sleeve body, which is fitted onto a threaded rod and is fixedly connected to a housing; a first bearing and a second bearing, which are respectively installed at both ends of the sleeve body, with the inner rings of the first bearing and the second bearing fixedly connected to the threaded rod, and the outer rings of the first bearing and the second bearing fixedly connected to the inner wall of the sleeve body.

[0011] In a possible implementation, a liquid level indicator is further included, the liquid level indicator is fixedly connected with the transmission sleeve, a liquid level display window is formed on the shell, and the liquid level indicator is matched with the liquid level display window so as to observe the grease state and supplement the grease in time.

[0012] In a possible implementation, a rotating handle is arranged on the threaded rod.

[0013] In a possible implementation, the fastening structure comprises a circular cover body, a snap ring is arranged at the bottom of the circular cover body, a snap groove is arranged on the shell, and the snap ring is matched with the snap groove so that the circular cover body is screwed into the shell; and a positioning member is arranged in a cylindrical structure, the positioning member is arranged concentrically with the circular cover body, and the positioning member is matched with the tapered roller bearing.

[0014] In a possible implementation, a plurality of observation windows are arranged, the plurality of observation windows are arranged on the outer side of the positioning member, and the observation windows are uniformly distributed in a circumferential array.

[0015] In a possible implementation, a rubber ring is arranged on the positioning member, the rubber ring is matched with the bearing inner ring of the tapered roller bearing, and the rubber ring prevents the grease from overflowing from the bearing inner hole.

[0016] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter.

[0017] Based on the above technical scheme, the bearing oil injection equipment adopts a hollow columnar grease container, the top of the grease container is provided with a tapered opening matched with the tapered roller bearing, and a sealing and positioning fastening structure is arranged in cooperation, thereby forming an injection interface with good consistency with the bearing structure, the compound injection path in the axial and radial directions can be realized, and the problem that the traditional injection mode is difficult to uniformly fill the tapered roller way is solved in structure; the technical principle is to seal and position the bearing by using the structure in close fit, and the piston is combined to stably push the grease in the axial direction, so that the grease is fully penetrated into each part of the bearing roller way, and a lubrication blind area is avoided.

[0018] In addition, the equipment is provided with visible observation windows, so that the operator can monitor the grease injection state in real time, the injection process is intuitively judged, the insufficient or excessive lubrication caused by experience operation is effectively prevented, the precision and material utilization rate of the injection are improved; at the same time, the piston is matched with the grease container in sealing, and a gas vent is arranged at the bottom of the container to release the air pressure, so that the piston moves smoothly and the pressure is stable, and the continuity and controllability of the injection process are ensured; the closed cavity surrounded by these structures further improves the cleanliness and safety of the lubrication process.

[0019] In summary, the technical scheme is directed to the problems of insufficient matching of lubrication path, unobservable grease injection state, poor structure adaptability and low standardization degree of operation in the prior art, and through optimization of the lubrication interface structure and sealing mechanism design, grease injection process visualization and driving control system, the efficiency, uniformity and standardization of bearing lubrication are significantly improved, and the reliability of bearing operation under high load working conditions and the convenience of maintenance are enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0021] Figure 1 The structural schematic diagram of the bearing oil injection equipment provided by the embodiments of the present application is shown in the figure.

[0022] Figure 2 The sectional view of the Figure 1

[0023] Figure 3 The sectional view of the inclined surface of the Figure 1

[0024] Figure 4 The enlarged view of the A area in the Figure 3

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, lubricating grease container; 2, conical opening; 3, fastening structure; 4, positioning piece; 5, rubber ring; 6, piston; 7, driving structure; 8, outer shell; 9, transmission rod; 10, transmission piece; 11, transmission sleeve; 12, threaded rod; 13, lubricating sleeve; 14, sleeve body; 15, first bearing; 16, second bearing; 17, liquid level indicator; 18, rotating handle; 19, circular cover; 20, liquid level display window; 21, observation window. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] ​​​In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0029] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation on the present application.

[0031] Figure 1 The structural schematic diagram of the bearing oil injection equipment provided by the embodiments of the present application is shown in the drawings; Figure 2 The structural schematic diagram of the bearing oil injection equipment provided by the embodiments of the present application is shown in the drawings; Figure 1 The sectional view of the bearing oil injection equipment provided by the embodiments of the present application is shown in the drawings; Figure 3 The sectional view of the bearing oil injection equipment provided by the embodiments of the present application is shown in the drawings; Figure 1 The sectional view of the bearing oil injection equipment provided by the embodiments of the present application is shown in the drawings; Figure 4 The sectional view of the bearing oil injection equipment provided by the embodiments of the present application is shown in the drawings; Figure 3 The enlarged view of the A area in the sectional view of the bearing oil injection equipment provided by the embodiments of the present application is shown in the drawings.

[0032] Please refer to Figures 1-4In one possible implementation, a bearing oil injection device includes: a grease container 1, which is a hollow cylindrical structure, and has a tapered opening 2 at the top for tight fitting with a tapered roller bearing to be injected; a fastening structure 3 detachably connected to the tapered opening 2, and provided with a positioning member 4 for limiting the radial movement of the tapered roller bearing, and an observation window 21 for observing the injection state of the grease; a piston 6 arranged in the cavity of the grease container 1, and in sealing fit with the inner wall of the grease container 1, so as to be able to reciprocate along the axis of the grease container 1; a driving structure 7 for driving the piston 6 to move back and forth along the axis of the grease container 1, so as to push the grease into the bearing; and an outer shell 8 for accommodating the grease container 1, the fastening structure 3, the piston 6, and the driving structure 7 as an integrated structure; wherein the bottom of the grease container 1 is provided with an air vent for releasing the air pressure in the cavity during the movement of the piston 6, to prevent the piston 6 from being blocked due to the airtightness; and wherein the piston 6, the grease container 1, and the fastening structure 3 together form an airtight cavity for containing the grease and surrounding the bearing to be injected, so as to ensure the sealing, stability, and controllability of the grease injection process.

[0033] The technical core of the device is that the tapered structure at the top of the grease container 1 geometrically matches the tapered roller bearing to form an accurately matched interface, and the position is locked by the fastening structure 3, so that the bearing remains in a stable state during the grease injection process. Through this structure, the grease can be pushed in the axial and radial directions simultaneously, so as to more uniformly fill the entire tapered raceway, solving the incomplete lubrication problem caused by the insufficient matching of the lubrication path in the traditional way. The piston 6 is pushed by the driving structure 7 to move back and forth at a constant speed along the axis of the container, and drives the grease to flow stably into the bearing. At the same time, due to the sealing fit between the piston 6 and the container and the adjustment of the pressure in the cavity by the air vent at the bottom of the container, the entire grease injection process remains smooth and unobstructed, the pressure is balanced, and the formation of lubrication blind area is avoided.

[0034] During the grease injection process, the operator can observe the pushing condition of the grease in real time through the observation window 21 on the fastening structure 3, and intuitively judge whether the grease injection is completed, effectively preventing insufficient or excessive injection caused by experience judgment errors, and improving the material utilization efficiency and operation standardization. This structure and operation process jointly build a clean and controllable grease injection environment, avoid impurities from mixing or grease from leaking, and improve the safety and durability of the lubrication system.

[0035] The materials and structures of the components in the device can also be flexibly adjusted according to the specific working condition requirements. The lubricating grease container 1 can be made of aluminum alloy, stainless steel or high-strength plastic, etc. The angle of the conical opening 2 can be customized and optimized according to the bearing model to achieve better matching effect. The fastening structure 3 can adopt screw thread, buckle, quick mounting, etc. to realize different installation modes; the driving structure 7 can be selected according to the power conditions, such as electric, hydraulic, pneumatic or manual driving mode, to adapt to different working scenes. The air vent can be further provided with a one-way valve or a filtering structure to prevent external particles from entering. For the observation window 21, lighting components or sensors can also be configured to realize intelligent monitoring and control, further improving the applicability and maintainability of the device.

[0036] Please refer to Figures 1-3 In one possible implementation, the driving structure 7 is arranged outside the lubricating grease container 1 and consists of a transmission rod 9, a transmission part 10, a transmission sleeve 11 and a threaded rod 12. The lower end of the transmission rod 9 is fixedly connected with the piston 6 in the cavity of the lubricating grease container 1, and the upper end thereof extends out of the upper cover of the container and extends to the outside space, and is connected with a transmission part 10 in parallel guiding connection. The transmission part 10 structure limits the movement track of the transmission rod 9, so that it can move up and down smoothly and synchronously along the axis direction of the container during driving.

[0037] The middle section of the transmission rod 9 is provided with a transmission sleeve 11, and is fixedly connected with the sleeve. The outer wall of the transmission sleeve 11 is provided with an internal thread structure, which is used for thread engagement with the threaded rod 12 arranged outside the sleeve. The axes of the two are parallel and aligned with each other. When the operator rotates the threaded rod 12 manually, the rotation motion can be converted into the linear displacement of the transmission sleeve 11 along the axis direction by relying on the action of the threaded pair structure, so as to synchronously drive the transmission rod 9 and the piston 6 connected therewith to move in the vertical direction, thereby completing the uniform advancement of the lubricating grease in the container cavity.

[0038] In order to enhance the consistency and intuitiveness of the operation, the threaded connection between the threaded rod 12 and the transmission sleeve 11 is right-handed thread. The rotation direction and the movement direction form a corresponding relationship: when the operator rotates the threaded rod 12 clockwise, the transmission sleeve 11 and the transmission rod 9 move downward, driving the piston 6 to move downward, compressing and extruding the lubricating grease; counterclockwise rotation makes the piston 6 move upward, releasing the volume space, which can be used for exhaust or grease supplement operation. This setting effectively avoids operation misjudgment and facilitates the formation of standardized operation guidance.

[0039] In order to further improve the use convenience of the device, a lubricating grease filling structure is also provided in this embodiment. A grease filling port is arranged on the top side wall or shell 8 of the lubricating grease container 1, which can be in the form of an internal thread interface, used for connecting a standard grease gun or a grease filling cylinder, so as to facilitate quick operation when maintaining or supplementing lubricating grease. A one-way check valve is arranged in the grease filling port to prevent backflow or pollution of the lubricating grease, ensuring the cleanliness and safety of the grease filling process.

[0040] Each of the connecting members, threaded members and guide components in the above structure is manufactured using a standard industrial fastening structure 3, facilitating disassembly and maintenance. The transmission components such as the threaded rod 12 and the transmission sleeve 11 can be made of wear-resistant alloy materials, and their fatigue resistance can be improved through surface nitriding or coating treatment, ensuring good service life under frequent lubrication conditions.

[0041] Please refer to Figures 2-3 In a possible implementation, to improve the overall stability and guiding accuracy of the driving structure 7, the transmission member 10 adopts a triangular structure. One end of the transmission member 10, as the first end, is fixedly connected with the transmission sleeve 11, and the other end, as the second end, is lapped on the transmission rod 9. The length of the first end is greater than that of the second end, forming an asymmetric arrangement with one side longer and the other side shorter, so that the transmission member 10 forms a three-dimensional inclined support in motion, effectively enhancing the axial constraint capability during driving.

[0042] During the up-and-down movement of the threaded rod 12 driving the transmission sleeve 11, the triangular transmission member 10 is connected through two different length fulcrums, assisting the transmission rod 9 to keep a stable motion trajectory in the axial direction. The first end provides main guiding and torque constraint, and the second end flexibly laps the transmission rod 9, which helps to buffer small amplitude disturbance and prevent eccentricity or jamming during operation. At the same time, this structure improves the stability and accuracy of driving load transmission, and is especially suitable for lubrication and lubricant injection scenarios that require stable driving force and high guiding accuracy.

[0043] In order to further reduce the overall equipment weight and optimize the utilization rate of processing materials, the triangular transmission member 10 adopts a hollow structure design. Several through holes or weight reduction grooves are provided inside according to the mechanical requirements, which significantly reduces the mass of the parts, reduces the additional load caused by inertia, and helps to improve the response sensitivity and energy saving of the equipment. The hollow area can be arranged symmetrically, or can be set as a special-shaped weight reduction hole according to the uneven stress distribution, to ensure reasonable distribution of structural stress.

[0044] The transmission member 10 can be made of aluminum alloy die casting, steel plate stamping and grooving, or high polymer engineering plastic injection molding. The contact surface between the transmission member 10 and the transmission rod 9 is provided with a guide groove or a rolling slide structure to reduce the friction coefficient and ensure the consistency of guiding. The overall design takes into account the mechanical stability and lightweight requirements, and is suitable for compact oil injection equipment with limited volume but stable performance requirements.

[0045] Please refer to Figures 2-3In a possible implementation, a lubricating sleeve 13 assembly is arranged in the driving structure 7 to enhance the rotation stability and axial position holding capability of the threaded rod 12 during operation. The lubricating sleeve 13 has a hollow cylindrical structure, and the inner cavity of the lubricating sleeve 13 is connected with the threaded rod 12. The lubricating sleeve 13 is installed in the middle of the equipment shell 8 and is firmly integrated with the equipment shell 8 by a fixed connection mode. The threaded rod 12 penetrates the lubricating sleeve 13 in the axial direction and can rotate around the axis. Meanwhile, the axial movement of the threaded rod 12 is effectively inhibited due to the limiting effect of the lubricating sleeve 13, thereby ensuring the one-way purity and high repeat accuracy of displacement during threaded transmission.

[0046] The gap fit design is adopted between the lubricating sleeve 13 and the threaded rod 12. The mating surface can be processed with high precision to control the gap within a reasonable range, so as to ensure the rotation flexibility and avoid the transmission instability caused by excessive shaking. In order to reduce the friction resistance and wear and improve the system operation efficiency, one or more pairs of sliding bushings, rolling bearings or needle roller assemblies can be embedded in the lubricating sleeve 13, so that the threaded rod 12 can still rotate smoothly under high load working conditions, and the control is not smooth or the threaded rod is stuck due to the increase of resistance. In addition, polytetrafluoroethylene, graphite coating or other low-friction materials can be coated on the inner wall surface of the lubricating sleeve 13, or annular oil storage grooves can be provided, so as to enhance the lubrication retention and prolong the service life of the overall structure.

[0047] In the specific connection structure, the lubricating sleeve 13 is respectively provided with a limiting ring and a sealing structure at both ends, which are used to fix the axial boundary position of the threaded rod 12 and prevent external dust or lubricating grease from entering the rotating pair area, so as to keep the structure clean. The limiting structure can also adopt a double-bearing end cover design to realize the simultaneous radial support and axial locking of the end of the threaded rod 12. The entire lubricating sleeve 13 is rigidly connected with the shell 8 through flange, screw or welding structure, which provides a stable and immovable fixed reference during the lubricating process, thereby improving the overall stiffness of the equipment and the consistency of the lubricating action.

[0048] The body of the lubricating sleeve 13 can be made of aluminum alloy, stainless steel, copper alloy or high-strength engineering plastic material, which can be flexibly selected according to the use environment and cost requirements of the equipment. For the lubricating equipment working under high load, frequent start-stop or extreme temperature and humidity conditions, materials with excellent corrosion resistance and wear resistance can be selected to prolong the service life of the structure and ensure the long-term stable operation of the equipment.

[0049] The structure adds a lubricating guide and axial limiting dual-function assembly between the threaded driving assembly and the equipment shell 8, which significantly improves the controllability of the rotation process of the threaded rod 12 and the operation stability of the structural system, ensures the accurate pushing path and continuous force transmission of the piston 6 during the lubricating process, and is one of the key components to ensure the long-term reliable operation of the driving module.

[0050] Please refer to Figures 2-4In a possible implementation, to significantly improve the guiding accuracy, structural stability and running smoothness of the threaded rod 12 during rotation, the lubricating sleeve 13 is configured as a multi-layer support structure, the inside of which is provided with the first bearing 15 and the second bearing 16, and is supported and limited by the integral sleeve body 14, and the overall structure is compact, strong in rigidity and high in stability. This design is particularly suitable for oil injection equipment occasions with high requirements for structural response accuracy and frequent driving.

[0051] The sleeve body 14 is in a cylindrical structure, which is formed by integral machining or module assembly, and the outer wall is fixedly connected with the equipment shell 8 by threads, bolts or welding, so as to ensure that the structure does not have any relative displacement during use. This fixing mode constitutes the structural reference surface of the threaded rod 12 rotating system, and is one of the core parts of the bearing and guiding in the whole grease injection propulsion mechanism.

[0052] Standard bearing mounting seats are formed at the upper and lower ends of the sleeve body 14, respectively, for mounting the first bearing 15 and the second bearing 16. The bearing mounting seat is made by high-precision inner hole machining, and the inner wall thereof is tightly matched with the outer ring of the bearing to form a gapless support surface. The first bearing 15 is mounted at the upper end, and the second bearing 16 is mounted at the lower end, and the two are symmetrically arranged to form an axle system for bidirectional guiding and supporting the threaded rod 12. The two shaft necks of the threaded rod 12 are connected with the inner rings of the first bearing 15 and the second bearing 16, respectively, and the connection mode can adopt interference fit, axial locking nut, C-shaped clamp spring or tapered surface locking ring, etc., to realize a high-coaxiality and non-slip rotating connection structure.

[0053] This bearing structure can use ordinary deep groove ball bearings to cope with medium loads and general speed occasions, can use dustproof bearings with sealing covers according to application requirements to improve environmental resistance, or can use thrust ball bearings to increase the bearing capacity of part of the axial force. For extreme working conditions (such as high temperature, high humidity or dusty environment), ceramic bearings or grease pre-filled maintenance-free bearings can also be considered to prolong the maintenance period.

[0054] To enhance the overall running life and rotation efficiency of the lubricating sleeve 13, an oil storage groove can be arranged on the inner wall of the sleeve body 14, which forms an oil film layer in cooperation with the self-lubricating property of the bearing, thereby reducing the friction coefficient and operating noise. A dustproof sealing ring, a labyrinth seal structure or an O-ring can also be added outside the bearing mounting area to block the intrusion of external particles and moisture, and to prevent the bearing lubricant from being contaminated or lost. If quick disassembly and maintenance are required, the sleeve body 14 can be designed as a detachable structure to facilitate bearing replacement and axle adjustment.

[0055] The sleeve body 14 cooperates with the double bearing to ensure that the threaded rod 12 remains stable and efficient in rotation during the grease injection process, significantly reduces the risk of axial movement and radial deviation, and effectively improves the operation accuracy and reliability of the entire grease injection drive system. At the same time, this structure has high universality and expandability, and is suitable for various industrial standard interfaces and custom shaft diameter specifications, and has good engineering application value.

[0056] Please refer to Figure 2 In a possible implementation, a liquid level indicator 17 structure is provided in the device to facilitate the operator to grasp the remaining amount of lubricating grease in real time and replenish in time. The liquid level indicator 17 is fixedly connected with the transmission sleeve 11 and can move synchronously with the axial movement of the transmission sleeve 11, thereby reflecting the current position of the piston 6 in the lubricating grease container 1 and indirectly indicating the remaining amount of lubricating grease in the container. The liquid level indicator 17 usually adopts an elongated rod structure and is made of a material with good visibility, such as a metal rod, a plastic rod or a magnetic float coated with color markings, to improve the recognition degree when observed from a distance.

[0057] A liquid level display window 20 is provided at a corresponding position on the device shell 8. The display window is a transparent window made of high-strength polycarbonate or tempered glass, which has the characteristics of pressure resistance, dustproofness and scratch resistance. The size and position of the liquid level display window 20 accurately correspond to the movement range of the liquid level indicator 17 and are opened at a position area of the shell 8 that is convenient for observation, so that the operator can quickly judge the remaining amount of lubricating grease through the observation window 21 without disassembling the device, facilitating maintenance and management.

[0058] When the piston 6 moves downward along the axial direction under the driving of the threaded drive structure 7, the lubricating grease is continuously pushed to the grease injection port. At this time, the transmission sleeve 11 also moves downward synchronously, and the liquid level indicator 17 connected thereto also descends correspondingly, thereby displaying a lower position in the display window and prompting that the remaining amount of lubricating grease is reduced. Conversely, during the replenishment of lubricating grease or the upward stroke, the position of the liquid level indicator 17 in the display window moves upward correspondingly, thereby prompting that the remaining amount of lubricating grease is sufficient. By marking different color bands or scale areas such as “full”, “normal”, “low” and “replenish” in the display window area, intuitive classification judgment of the state of lubricating grease can be realized, and lubrication failure or waste caused by insufficient or excessive lubrication can be avoided.

[0059] The liquid level monitoring system has simple structure, timely response and does not depend on electronic sensors, and is suitable for industrial scenes with strict cost control or complex use environment. At the same time, the liquid level indicator 17 and the transmission mechanism share the same structural basis, without the need for additional guide rails or driving devices, so that the overall system has high stability and low maintenance cost.

[0060] A protective cover can be additionally installed outside the liquid level display window 20 to avoid dust and oil from adhering and affecting visibility. The inside of the display window can also be coated with an anti-fog and anti-oil film coating to further improve reading clarity. If necessary, a magnetic sheet can also be provided on the liquid level indicator 17 for use with an external magnetic induction switch or liquid level alarm device to achieve low liquid level reminding or automatic grease replenishment control function, providing an interface basis for intelligent upgrading of the equipment.

[0061] Please refer to Figures 1-3 In a possible implementation, to improve the convenience and force transmission efficiency of manual operation of the operator during the grease injection process, a rotating handle 18 is provided at the upper end of the threaded rod 12. The rotating handle 18, as a manual driving unit, is installed at the free end of the threaded rod 12 and can directly apply torque by the operator to drive the threaded rod 12 to rotate around its axis, thereby driving the transmission sleeve 11 and the attached piston 6 connected to the threaded pair to move axially and linearly.

[0062] The structure of the rotating handle 18 can be optimized according to ergonomics, and is usually in the form of a "T", a cross or a double-wing layout, with good gripping area and anti-slip performance. In terms of materials, high-strength plastic, aluminum alloy or rubber-coated metal composite structure can be selected to balance mechanical strength and hand feel. The rotating handle 18 and the threaded rod 12 are stably installed through threaded connection, pin shaft coupling or spline press fitting, etc. to ensure that they do not slip or loosen under large torque working conditions.

[0063] The addition of the rotating handle 18 avoids the cumbersome operation and safety hazards of using other tools (such as wrenches or hook-shaped handles) to rotate the threaded rod 12, making the grease injection process more intuitive, fast and safe. The operator can directly observe the number of handle rotations and the direction, easily judge the displacement degree and grease injection amount of the current piston 6, and improve the intuition and accuracy of operation control.

[0064] In addition, to further improve the convenience of use, a rotating scale ring, positioning slot or limiting pin structure can be additionally installed on the rotating handle 18 to identify the rotation angle and cumulative number of turns, so that the grease injection amount has certain quantifiability and repeatability. For application scenarios that require operation feedback, an elastic damping device or ratchet structure can also be added to the middle of the handle to provide segment feedback when rotating, enhancing the controllability and precision perception during use.

[0065] It is worth noting that to achieve stable, comfortable and continuous manual driving of the threaded rod 12, a circular knob is provided at the upper end of the threaded rod 12. The knob, as a direct interface between the operator and the threaded driving mechanism, has a compact structure and is convenient for single-handed or double-handed operation, and can provide a stable rotating control experience.

[0066] The circular knob is in the shape of a disc as a whole, usually provided with a central hole for connecting with the free end of the threaded rod 12. The connection mode can be selected from threaded connection, shaft pin connection or nested press-fit structure, to ensure that the knob and the threaded rod 12 form a firm and reliable integrated rotating assembly. In order to enhance the comfort of operation, the outer edge of the circular knob is provided with concave-convex lines, grooves, rubber coating or anti-slip particle structure, which can effectively prevent slipping during operation, and can maintain good grip even when the hands are greasy or gloves are worn.

[0067] In the specific operation process, the operator only needs to rotate the circular knob with the palm or fingertips to drive the threaded rod 12 to rotate around the shaft, thereby realizing the axial advancing or retracting movement of the piston 6 through the threaded transmission mechanism. Compared with the traditional T-shaped handle or wrench handle, the circular knob structure has the advantages of regular shape, small space occupation, clear vision and strong intuition in operation, and is especially suitable for compact equipment or densely arranged lubricating systems.

[0068] In order to further improve the use experience, the surface of the knob can be provided with a rotating scale ring or a recessed indicating line to indicate the number of rotation or the grease injection progress. A transparent observation window 21 or an annular scale can also be provided between the knob and the shell 8 to realize visual feedback during grease injection. If the operating torque is large, a foldable handle or a slide rail type extension pull rod can be added to the side of the knob to expand the force arm and reduce the operating burden.

[0069] The circular knob can be made of high-strength plastic, ABS, aluminum alloy or composite material, which not only meets the mechanical properties, but also has good surface treatment adaptability (such as sandblasting, oxidation and electroplating), while maintaining wear resistance and service life, and improving the appearance consistency and industrial design aesthetics of the whole machine.

[0070] Please refer to Figures 1-3 In a possible implementation, in order to realize the quick alignment, sealed fixation and stable connection between the bearing oiling equipment and the bearing to be lubricated, the equipment is provided with a special fastening structure 3 composed of a circular cover 19 and a positioning piece 4. The circular cover 19 is an integrally formed or machined disc-shaped structure, and the bottom thereof is provided with an annular snap ring for assembly. The corresponding position of the shell 8 is provided with an annular snap groove, and the two are connected by rotating assembly.

[0071] During assembly, the operator rotates the circular cover 19 into the upper opening of the shell 8 along the preset direction, so that the snap ring and the snap groove are spirally engaged, and finally the snap ring enters the positioning area of the snap groove, and the locking state is realized by means of rotating limiting structure (such as tooth stop, wedge surface or stop block). The rotating snap-fit structure can quickly complete fastening, has excellent repeat positioning accuracy, is convenient to operate and quick to disassemble, and is suitable for use in multiple batches and continuous lubrication operations.

[0072] To improve the alignment accuracy and bearing fixing effect of the grease injection process, the cover body is fixedly connected with a positioning member 4. The positioning member 4 is in a cylindrical shape, and the axis is coaxial with the cover body. The positioning member 4 is matched with the structure of the tapered roller bearing, and its size is accurately designed to be inserted into the bearing hole without damaging the bearing, thereby realizing the dual positioning function of the axial and radial directions. Since the positioning member 4 is fixedly connected with the cover body, there is no assembly error between them, which can ensure stable and repeated coaxial connection in each installation process, and help to maintain the consistency of the grease injection path direction.

[0073] The fixed connection of the cover body and the positioning member 4 can be completed by welding, interference fit, screw fastening or one-piece injection molding, and the optimal scheme is determined according to the selected material and strength requirement. The material of the whole fastening structure 3 can be selected from stainless steel, anodized aluminum or reinforced engineering plastic according to the use environment, which has good corrosion resistance and deformation resistance while ensuring the structural strength, and is particularly suitable for high-frequency assembly and disassembly or long-term use in outdoor environment.

[0074] Through the fastening structure 3 in this fixed connection form, the whole grease injection interface area has good mechanical strength, structural sealing and installation repeatability, and can realize accurate and rapid switching among various bearing models, improve the grease injection operation efficiency, reduce the operation error, and effectively reduce the maintenance cost.

[0075] Please refer to Figures 1-3 In a possible implementation, to realize the visual operation and multi-angle observation effect of the grease injection process, the observation window 21 on the fastening structure 3 is provided in multiple numbers and uniformly arranged on the outer circumferential surface of the positioning member 4, forming a circumferential array arrangement structure. The observation window 21 is used to monitor the grease filling state in real time during the grease injection process, and assist the operator to judge whether the grease has fully covered the bearing raceway, whether there is a cavity or insufficient filling, etc., thereby improving the accuracy and standardization of the grease injection work.

[0076] Each observation window 21 is in an elliptical or rectangular structure with moderate size, which can provide a clear field of view without weakening the structural strength of the positioning member 4. These observation windows 21 can be made of high-strength transparent materials such as polycarbonate (PC), acrylic (PMMA) or tempered glass, which have the properties of impact resistance, scratch resistance and chemical corrosion resistance, and are suitable for various industrial lubrication environments.

[0077] The position of the observation window 21 is designed based on the radial range of the bearing raceway area to ensure that the lubricating grease can be clearly observed through any angle when it is pushed to the key position. The circumferential array arrangement not only enhances the visual coverage angle, but also facilitates monitoring operations under different installation orientations and different light conditions. For example, even if the bearing is placed in a certain deviation direction, the lubricating grease distribution state can still be observed from the window in the opposite direction, avoiding the dead angle misjudgment caused by single window observation.

[0078] To further improve the convenience of use, the inner surface of the observation window 21 area can be coated with an anti-fog layer, an anti-oil coating, or provided with a micro-convex structure to repel attached lubricating grease particles or condensed water droplets, ensuring that the observation field of view is always clear. The outside can also be provided with a sliding cover, a protective cover, or a rotating ring cover assembly to avoid dust or light interference affecting its performance when not in use.

[0079] The multi-window circumferential distribution structure achieves a good balance between structural strength, functional coverage, and manufacturing cost, while enhancing the operator's control over the lubrication state during the lubricating process. It is an important auxiliary device for lubricating precision and process visualization.

[0080] Please refer to Figure 2 In a possible implementation, to further improve the sealing performance and lubricating grease control effect during the lubricating process, a circle of elastic rubber ring 5 is arranged on the outer circular surface of the positioning member 4, which is specially used for sealing cooperation with the inner ring of the tapered roller bearing. Through this structural design, the lubricating grease can be effectively prevented from overflowing from the bearing inner hole position during the injection process, avoiding lubricating grease waste and equipment pollution, and maintaining the cleanliness of the lubricating area and the stability of the lubricating effect.

[0081] The material of the rubber ring 5 is preferably synthetic rubber with good oil resistance, high temperature resistance, and elasticity, such as fluororubber (FKM), nitrile rubber (NBR), or silicone rubber. The cross section can be circular, rectangular, or lip-shaped structure, and the specific shape is set according to the structural size of the bearing inner ring and the sealing cooperation requirement. The rubber ring 5 is fixed in the circumferential groove of the positioning member 4 by embedding, and the groove is made by turning or injection molding process, ensuring good installation stability and size fit during assembly.

[0082] During the lubricating process, when the positioning member 4 is inserted into the bearing inner hole, the rubber ring 5 forms a pre-pressing contact with the bearing inner ring, constituting a local sealing area. The lubricating grease is injected into the bearing raceway area under the push of the piston 6. Since the bearing inner ring is sealed by the rubber ring 5, the lubricating grease cannot leak out in the axial direction, thereby forming a closed filling state in the raceway cavity, which helps to achieve quantitative distribution and pressure equalization of the lubricating grease. This sealing effect not only improves the lubricating precision, but also reduces the complexity of cleaning during the operation process, improving the work efficiency.

[0083] In addition, the rubber ring 5 structure can also buffer the mechanical contact force between the positioning member 4 and the bearing to prevent assembly scratches or structural damage caused by hard contact. To enhance its durability, a multi-seal structure or a composite rubber ring 5 can be selected, which has self-lubricating properties and high recovery performance, and is suitable for high-frequency grease injection conditions.

[0084] The addition of the rubber ring 5 structure enables the grease injection equipment to have stronger sealing adaptability when dealing with different types of bearings and different inner hole sizes. By replacing rubber rings 5 assemblies of different sizes, the equipment can be quickly converted for injection tasks on multiple types of bearings, enhancing the system's versatility and operational reliability.

[0085] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0086] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A bearing oiling apparatus characterized by, The application relates to a lubricating grease container, which comprises the following parts: a lubricating grease container in a hollow columnar structure, the top of the lubricating grease container being provided with a tapered opening for tightly matching a tapered roller bearing to be lubricated; a fastening structure which is detachably connected to the tapered opening and is provided with a positioning member for limiting the radial movement of the tapered roller bearing and an observation window for observing the injection state of the lubricating grease; a piston arranged in the cavity of the lubricating grease container and tightly matched with the inner wall of the lubricating grease container so as to be capable of reciprocating along the axial direction of the lubricating grease container; a driving structure for driving the piston to move back and forth along the axial direction of the lubricating grease container so as to push the lubricating grease into the tapered roller bearing; an outer shell for containing the lubricating grease container, the fastening structure, the piston and the driving structure as an integrated structure; the driving structure comprises a transmission rod, one end of the transmission rod being fixedly connected with the piston, the other end of the transmission rod extending out of the lubricating grease container; a transmission member being in transmission connection with the second end of the transmission rod so that the transmission rod and the transmission member move in parallel along the axial direction of the transmission rod; a transmission sleeve being fixedly connected with the transmission rod, the lubricating sleeve being sleeved on the threaded rod, the lubricating sleeve being fixedly arranged on the outer shell, the lubricating sleeve being in horizontal rotation connection with the threaded rod and limiting the axial displacement of the threaded rod in the vertical direction; wherein the lubricating sleeve comprises a sleeve main body, the sleeve main body being sleeved on the threaded rod and being fixedly connected with the outer shell; first and second bearings being respectively arranged at the two ends of the sleeve main body, the inner ring of the first bearing and the inner ring of the second bearing being fixedly connected with the threaded rod, the outer ring of the first bearing and the outer ring of the second bearing being fixedly connected with the inner wall of the sleeve main body; a threaded rod being in threaded connection with the transmission sleeve and being arranged in parallel with the transmission rod; when the threaded rod rotates, the transmission sleeve and the transmission rod move vertically along the axial direction, thereby driving the piston to move synchronously; the bottom of the lubricating grease container is provided with a gas permeation hole for releasing the air pressure in the cavity during the movement of the piston, thereby preventing the movement of the piston from being hindered due to the airtightness; the piston, the lubricating grease container and the fastening structure jointly form an airtight cavity for containing the lubricating grease and surrounding the tapered roller bearing to be lubricated, so as to ensure the airtightness, stability and controllability of the lubricating process. The transmission member is in triangular structure, the first end of the transmission member being fixedly connected with the transmission sleeve, the second end of the transmission member being overlapped on the transmission rod, and the length of the first end being greater than the length of the second end. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The bearing oiling apparatus of claim 1, wherein ​ 3. The bearing oiling apparatus of claim 1, wherein The grease level indicator is fixedly connected with the transmission sleeve, a grease level display window is formed on the shell, and the grease level indicator is matched with the grease level display window, so that the grease state can be observed to supplement the grease in time.

4. The bearing oiling apparatus of claim 1, wherein A rotating handle is arranged on the threaded rod.

5. The bearing oiling apparatus of claim 1, wherein, The fastening structure comprises: A circular cover body is arranged on the bottom of the circular cover body, a snap ring is arranged on the shell, the snap ring is matched with the snap groove, and the circular cover body is screwed into the shell. A positioning member is arranged in a cylindrical structure, the positioning member is concentrically arranged with the circular cover body, and the positioning member is matched with the tapered roller bearing.

6. The bearing oiling apparatus of claim 5, wherein, A plurality of observation windows are arranged, the observation windows are arranged on the outer side of the positioning member, and the observation windows are uniformly distributed in a circumferential array.

7. The bearing oiling apparatus of claim 2, wherein, A rubber ring is arranged on the positioning member, the rubber ring is matched with the bearing inner ring of the tapered roller bearing, and the rubber ring prevents the grease from overflowing from the bearing inner hole.

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