Oil injector for lubricating diesel engine starting air distributor based on compressed fluid
Through the design of the oiler based on compressed fluid, utilizing the principles of compressed air pressure and negative pressure adsorption, combined with a flow-adjustable oil injection device and a filtered dust-proof oil tank, the problems of unadjustable oil injection volume and clogging are solved, ensuring the reliability of diesel engine starting.
Patent Information
- Application Number
- CN202520067015.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The oil injection amount of the traditional diesel engine starting air distributor oiler cannot be adjusted and is easily clogged, causing wear between the distribution plate and the housing, affecting starting reliability.
Adopting a lubricator based on compressed fluid, utilizing the compressed air's own pressure and negative pressure adsorption principle, combined with a flow-adjustable oiling device and a filtered dust-proof oil tank, it realizes automatic on-off control and oil quantity adjustment to avoid pollution and blockage.
It realizes flexible adjustment of oil injection amount and prevents blockage, protects the reliability of diesel engine starting, and avoids wear of distribution plate and housing.
Smart Images
Figure CN223470006U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to diesel engine lubricating system technical field, concretely relates to an oil injector for lubricating of diesel engine starting air distributor based on compressed fluid. BACKGROUND
[0002] The weight of each moving part of high-power diesel engine is large, and the starting torque is large, so a compressed air starting system is usually used for starting, at present, most high-power diesel engines still use mechanical air distributor control mode for starting, the mechanical air distributor is driven by the camshaft of the diesel engine, controls the compressed air connection sequence of the starting control valve on the cylinder cover, the connection time and the connection duration, so as to control the opening sequence, the opening time and the opening duration of the starting control valve, so that the starting air enters the cylinder at the required time and lasts for a certain time, the piston is pushed to drive the crankshaft to rotate, and the diesel engine performs ignition after reaching the ignition speed, and the starting is successful. After the starting is successful, the compressed air is disconnected, the distribution disc is separated from the body and does not contact; the two end faces of the distribution disc are different when the diesel engine starts, and a rightward thrust is generated after the compressed air enters the distribution disc, so that the distribution disc is closely attached to the shell, and the compressed air is prevented from leaking from the gap between the distribution disc and the shell. Since the distribution disc and the shell are both made of metal, if the attachment surface is not lubricated, dry friction occurs between the metals, which causes wear between the metals, so that the operation cannot continue. Therefore, an oil injector is installed on the air distributor front system; the oil injector functions as follows: when the diesel engine starts, the oil injector injects an appropriate amount of lubricating oil into the control air pipeline, the lubricating oil is mixed with the compressed air, and the mixed lubricating oil lubricates the gap between the distribution disc and the distributor body when flowing through the mechanical air distributor, so as to prevent dry friction and wear between the distribution disc and the distributor body support, and prevent damage to the parts.
[0003] The currently used oil injector as shown in Figures 7-8 The working principle of the oil injector is as follows: when starting, the compressed air is connected, the compressed air opens the one-way valve A2 through the hole A1, then passes through the hole A3 and the hole A4 to the oil tank A5, the oil pressure generated by the pressure in the oil tank A5 is greater than the oil pressure on the A6 side, the lubricating oil is injected into the pipeline through the one-way valve A8 after passing through A7, and the mixed lubricating oil lubricates the gap between the distribution disc and the distributor body, but the following defects exist in use: ① the amount of oil injected by the oil injector depends on the hole diameter of the hole A7 connected with the oil tank A8, the hole diameter determines the amount of oil injection, if adjustment is needed, the hole A7 needs to be reprocessed; ② when starting, the compressed air enters the oil injector and contacts with the lubricating oil, some small dust in the air will gradually contaminate the lubricating oil and cause fouling, the fouling will block the oil pipe, the oil injector cannot inject oil or the amount of oil injection is reduced, and abnormal wear of the mechanical distributor is caused, therefore, it is necessary to improve in view of the above problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model discloses a technical scheme that: the oiler for the lubrication of the diesel engine starting air distributor based on compressed fluid, including with the diesel engine distributor and compressed gas source pipeline fixed connection's base, and the diesel engine distributor and compressed gas source pipeline pass through the oil gas passage in the base inside intercommunication, the base upper end with its top base flange detachable fixed connection, and the flow adjustable oil injection device is fixed between the base and base flange, the base flange upper end seal is equipped with the oil tank with filter dustproof function, and the oil tank lower end oil hole passes through the one-way valve assembly of being equipped with on the base flange and the oil inlet on the flow adjustable oil injection device intercommunication, and by the oil inlet, the oil in the oil tank is sent to the oil cavity in the flow adjustable oil injection device through the one-way valve assembly's slip oil, be equipped with in the base one end orifice is located on the oil gas passage hole wall's compressed air hole and slip oil hole, the compressed air hole another end orifice is located on the base upper end face and is sealed intercommunication with the compressed air inlet of flow adjustable oil injection device, and slip oil hole another end passes through the one-way valve group device and the slip oil outlet of flow adjustable oil injection device intercommunication, and in the oil gas passage part through the compressed air hole into the flow adjustable oil injection device inside the compressed air effect under, make the slip oil in the oil cavity in the flow adjustable oil injection device through the one-way valve group device and slip oil hole into the oil gas passage and the mixed delivery to the diesel engine distributor with compressed air.
[0005] The utility model discloses a technical scheme that: the oiler for the lubrication of the diesel engine starting air distributor based on compressed fluid, including with the diesel engine distributor and compressed gas source pipeline fixed connection's base, and the diesel engine distributor and compressed gas source pipeline pass through the oil gas passage in the base inside intercommunication, the base upper end with its top base flange detachable fixed connection, and the flow adjustable oil injection device is fixed between the base and base flange, the base flange upper end seal is equipped with the oil tank with filter dustproof function, and the oil tank lower end oil hole passes through the one-way valve assembly of being equipped with on the base flange and the oil inlet on the flow adjustable oil injection device intercommunication, and by the oil inlet, the oil in the oil tank is sent to the oil cavity in the flow adjustable oil injection device through the one-way valve assembly's slip oil, be equipped with in the base one end orifice is located on the oil gas passage hole wall's compressed air hole and slip oil hole, the compressed air hole another end orifice is located on the base upper end face and is sealed intercommunication with the compressed air inlet of flow adjustable oil injection device, and slip oil hole another end passes through the one-way valve group device and the slip oil outlet of flow adjustable oil injection device intercommunication, and in the oil gas passage part through the compressed air hole into the flow adjustable oil injection device inside the compressed air effect under, make the slip oil in the oil cavity in the flow adjustable oil injection device through the one-way valve group device and slip oil hole into the oil gas passage and the mixed delivery to the diesel engine distributor with compressed air.
[0006] The flow-adjustable oil injection device comprises a plunger, a shell with two open ends, an adjusting seat and a tail sleeve respectively fixedly connected to the two ends of the shell, the plunger being slidingly sealed in the shell, the right end of the plunger extending into the tail sleeve and being adaptively connected with an elastic reset device arranged in the tail sleeve, a convex ring on the outer circumferential wall of the left end of the plunger forming an oil cavity between the right end face of the convex ring and the left step face of the stepped hole of the shell, the oil cavity being in communication with a one-way valve assembly through an oil inlet on the plunger, the shell being provided with a control disc located outside the left end of the plunger and being radially positioned and connected with the adjusting seat, the right end of an adjusting bolt being axially positioned and sealed in the middle through hole of the adjusting seat and being threadedly connected with the middle of the control disc, the right end of the adjusting bolt extending through the control disc into the central hole of the left end face of the plunger and being controlled to move leftward or rightward by the control disc through the rotation of the adjusting bolt under the cooperation of the elastic reset device, so as to adjust the size of the oil cavity and complete the regulation and control of the oil injection amount.
[0007] Further, the elastic reset device comprises a reset spring and a T-shaped column, the T-shaped column being coaxially arranged in the tail sleeve, the large head end of the T-shaped column being fixed to the inner end face of the right end of the tail sleeve, one end of the reset spring being sleeved on the small diameter section of the T-shaped column and abutting against the step face formed by the small diameter section and the large diameter section, the other end of the reset spring extending into the central guide groove of the right end face of the plunger and abutting against the groove bottom face of the central guide groove.
[0008] Further, the left end face of the control disc is uniformly provided with not less than two guide rods, the guide rods being adaptively arranged in the guide holes corresponding to the right end face of the adjusting seat, and the radial positioning and connecting of the control disc and the adjusting seat being realized under the cooperation of the guide rods and the guide holes.
[0009] Further, a sealing groove is formed on the outer wall of the convex ring of the plunger, an O-shaped sealing ring being arranged in the sealing groove and being in contact with the inner wall of the shell, an O-shaped sealing ring being arranged in the stepped hole of the shell between the right step face of the stepped hole and the tail sleeve and being used for sealing the plunger, the shell and the tail sleeve, and a Y-shaped sealing ring being sleeved and fixed to the left end of the plunger and being in contact with the hole wall of the shell.
[0010] Further, a sealing ring is arranged at the step position of the adjusting bolt and the middle through hole of the adjusting seat, and a sealing ring is arranged on the outer wall of the step position of the small diameter section of the right end of the adjusting seat and being in contact with the inner hole wall of the right end of the shell.
[0011] Further, the one-way valve assembly includes an oil suction stud with a large end located in the oil tank and a steel ball arranged at the lower end of the oil suction stud, the lower end of the oil suction stud passes through the oil outlet hole on the bottom surface of the oil tank and is threadedly connected to the mounting hole on the flange of the base, and the steel ball is located in the mounting hole, and the lower hole of the mounting hole corresponds to and communicates with the T-shaped hole on the outer wall of the shell of the flow-adjustable oil injection device and communicates with the oil cavity, and a sealing ring is arranged on the inner hole wall of the T-shaped hole, a T-shaped oil hole is arranged in the oil suction stud, two upper ports of the T-shaped oil hole are located on the side walls and communicate with the inside of the oil tank, and a lower port is located on the lower end surface of the oil suction stud, the lower end surface of the oil suction stud is an arc surface matched with the steel ball, and the steel ball moves downward to make the oil cavity communicate with the oil tank through the T-shaped oil hole when there is no compressed air in the oil and gas passage, and the steel ball moves upward to contact the arc surface of the lower end of the oil suction stud to block the oil cavity from the oil tank when there is compressed air in the oil and gas passage.
[0012] Further, the one-way valve assembly includes a horizontal elastic one-way valve group and a vertical elastic one-way valve group, wherein the vertical elastic one-way valve group is vertically installed on the upper end surface of the base, and the upper end of the vertical elastic one-way valve group is sealingly connected to the lubricating oil outlet on the shell of the flow-adjustable oil injection device, the horizontal elastic one-way valve group is horizontally installed on the side wall of the base, the left end of the horizontal elastic one-way valve group communicates with the lubricating oil hole, and the right end of the horizontal elastic one-way valve group communicates with the lower end of the vertical elastic one-way valve group through an oil passage.
[0013] Further, the horizontal elastic one-way valve group includes a spring, an oil passing plunger and a connecting plug column, the connecting plug column is in a T-shaped columnar structure, the small diameter section of the connecting plug column is threadedly connected to the threaded hole on the side wall of the base and communicates with the lubricating oil hole, and the step surface formed by the large diameter section and the small diameter section of the connecting plug column abuts against the side wall of the base, the left end outer wall of the connecting plug column contacts the sealing ring fitted and installed in the sealing groove on the hole wall section of the threaded hole, the oil passing plunger is fitted and installed in the inner hole of the small diameter section of the connecting plug column, one end of the spring sleeved on the small diameter section of the oil passing plunger abuts against the step surface of the oil passing plunger, and the other end abuts against the bottom surface of the threaded hole on the side wall of the base, a Y-shaped oil hole is formed in the oil passing plunger, two right end holes are located on the right end tapered surface, and a left end hole is located on the left end surface, and the Y-shaped oil hole communicates with the inner hole of the small diameter section of the connecting plug column at both ends, the oil passage communicates with the inner hole of the small diameter section of the connecting plug column through the oil passage arranged at the transition position of the large diameter section and the small diameter section of the connecting plug column, and when there is compressed air in the oil and gas passage, the lubricating oil in the oil passage makes the oil passing plunger move leftward and flow into the oil and gas passage through the Y-shaped oil hole, the inner hole of the small diameter section of the connecting plug column and the lubricating oil hole;
[0014] The vertical elastic one-way valve group comprises a spring, an oil passing plunger and an oil passing plug column, a small diameter section at the upper end of the oil passing plug column is adapted to the oil outlet on the shell, a large diameter section at the lower end of the oil passing plug column is screwed into the mounting hole on the upper end surface of the base and is sealed by the sealing ring arranged on the large diameter section of the oil passing plug column and in contact with the hole wall of the mounting hole and the shell, the oil passing plunger and the spring sleeved on the small diameter section at the lower end of the oil passing plunger are arranged in the mounting hole on the upper end surface of the base, and the conical section at the upper end of the oil passing plunger extends into the central oil hole of the oil passing plug column, the Y-shaped oil hole with two orifices at the upper end located on the conical surface and the lower end orifice located on the lower end surface is formed in the oil passing plunger, the oil channel is in communication with the mounting hole on the upper end surface of the base, and when the compressed air is in the oil gas channel, the lubricating oil in the oil cavity makes the oil passing plunger move downward and flow into the oil channel through the central oil hole of the oil passing plug column and the Y-shaped oil hole.
[0015] Further, the oil tank comprises a tank body with an open upper end, a cover sealed and fixed on the upper end port of the tank body, a top cover screwed on the upper end of the cover, and a filter cartridge arranged in the tank body, the cover is annular structure with the size of the upper end smaller than that of the lower end, the T-shaped ring at the upper end of the filter cartridge is overlapped with the upper end port of the cover, and the inverted conical filter cartridge fixed on the T-shaped ring is located in the tank body.
[0016] Compared with the prior art, the utility model has the advantages of:
[0017] 1. The technical scheme utilizes the self pressure of compressed air, so that a small part of compressed air in the oil gas channel enters the shell through the compressed air hole, exerts pressure on the left end of the plunger, and makes the lubricating oil in the oil cavity enter the oil gas channel through the one-way valve group device and the oil hole and mix with the compressed air and then be sent to the diesel engine distributor, so that the lubricating oil and the compressed air in the oil gas channel are mixed, and only a small part of compressed air in the oil gas channel needs to be filled into the gap between the left end of the plunger and the compressed air hole in the shell, and no other power structure is needed.
[0018] 2. The technical scheme utilizes the negative pressure adsorption principle, fixes the T-shaped column in the tail sleeve, and makes the reset spring connected to the T-shaped column top the central guide groove on the right end surface of the plunger, so that the plunger is reset by the reset spring when there is no compressed air in the oil gas channel, at this time, the oil cavity is in a negative pressure state, so that the one-way valve group is opened, and the lubricating oil in the oil tank is injected into the oil cavity, and no other oil injection structure is needed to automatically inject oil into the oil cavity.
[0019] 3. The technical scheme sets the one-way valve group on the flanges of the oil tank and the base, and sets the one-way valve group device on the base, so as to provide conditions for the automatic on-off of the oil tank and the oil cavity and the oil cavity and the oil hole, and no manual control is needed, and automatic on-off control is realized according to the internal pressure change.
[0020] 4. This technical solution has a simple structure, novel design, mechanical automatic on-off control, and adopts an oil tank with filtering and dustproof function, which effectively solves the problems of traditional lubricators that the oil filling amount cannot be adjusted and the oil injector is blocked. It eliminates the contamination, blockage, and gradual reduction of oil filling amount or inability to inject oil in the lubricator, avoids abnormal wear between the distribution plate and the housing of the mechanical air distributor, and protects the reliability of diesel engine starting. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is the main view of the structure of the utility model;
[0022] Figure 2 for Figure 1 Middle BB cross-section;
[0023] Figure 3 This is a schematic diagram of the compressed air and lubricating oil flow in the utility model;
[0024] Figure 4 This is a structural diagram of the utility model at the maximum oil injection position;
[0025] Figure 5 This is a schematic diagram of the structure of the utility model after the oil injection amount is adjusted;
[0026] Figure 6 for Figure 2 A partial enlarged schematic diagram in the middle;
[0027] Figure 7 A schematic diagram of the internal structure of an existing lubricator from one perspective;
[0028] Figure 8 This is a schematic diagram of the internal structure of an existing lubricator from another perspective. DETAILED DESCRIPTION
[0029] The following is a combination of the embodiments of the present invention Figures 1-6 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.
[0030] It should be noted that, in this article, unless otherwise stated, it is understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0031] In this article, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations. The element defined by the statement "includes a..." does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0032] Compression fluid-based diesel engine starting air distributor lubrication oil injector, such as Figures 1-6As shown, including with diesel distributor and compressed gas pipeline fixed connection base 1, and diesel distributor and compressed gas pipeline through the base 1 inside the oil and gas passage 3 communication, the base 1 upper end with its above base flange 2 detachable fixed connection, and the flow adjustable oil injection device is fixed between the base 1 and base flange 2, the base flange 2 upper end sealing has the oil tank 6 with filter dustproof function, and the oil tank 6 lower end oil hole through the one-way valve assembly provided on the base flange 2 and the flow adjustable oil injection device on the oil inlet communication, and by the oil inlet will oil tank 6 in through the one-way valve assembly of the oil sent to the oil cavity 7 in the flow adjustable oil injection device; The base 1 is provided with a end orifice located on the oil and gas passage 3 hole wall compression air hole 4 and the oil hole 5, the other end orifice of the compression air hole 4 is located on the upper end surface of the base 1 and is in sealing communication with the compressed air inlet of the flow adjustable oil injection device, and the other end of the oil hole 5 is communicated with the oil outlet of the flow adjustable oil injection device through the one-way valve group device, and part of the oil and gas passage 3 passes through the compression air hole 4 into the flow adjustable oil injection device under the action of the compressed air inside the flow adjustable oil injection device, so that the oil in the oil cavity 7 in the flow adjustable oil injection device enters the oil and gas passage 3 through the one-way valve group device and the oil hole 5 and the mixed compressed air is sent to the diesel distributor; In the above structure, mechanical automatic on-off control is adopted, and oil tank with filter dustproof function is adopted, which effectively solves the problems of unadjustable oil injection amount of traditional oil injector and oil injector related blockage, eliminates the situation of oil injector being contaminated, related blockage and oil injection amount gradually reducing or unable to inject oil, avoids abnormal wear between the mechanical air distributor distribution disc and the shell, and protects the reliability of diesel engine starting.
[0033] Among them, the base 1 upper end surface and base flange 2 are evenly distributed with a plurality of distance sleeves, and the base 1 and the base flange 2 are fixedly connected through bolts and distance sleeves, realizing detachable fixed connection of the base 1 and the base flange 2, which provides conditions for reliable support of the oil tank 6 under the premise of reliable fixation of the flow adjustable oil injection device;
[0034] As Figures 2-5As shown, the specific structure of the flow-adjustable oil injection device is as follows: the flow-adjustable oil injection device includes a plunger 11, a housing 8 with openings at both ends, an adjustment seat 9 and a tail sleeve 10 respectively sealed and fixed to the two ends of the housing 8, the plunger 11 is slidably sealed inside the housing 8, and the right end of the plunger 11 extends into the tail sleeve 10 and is adapted to be connected to the elastic reset device provided inside the tail sleeve 10, an oil chamber 7 is formed between the right end surface of the convex ring on the outer circumferential wall of the left end of the plunger 11 and the step surface on the left end of the stepped inner hole of the housing 8, and the oil chamber 7 is communicated with the one-way valve assembly through the oil inlet on the plunger 11, and a valve is provided in the housing 8 at the outside of the left end of the plunger 11 and in contact with the adjustment seat 9. The oil control plate 13 connected to the positioning is axially positioned and sealed in the through hole in the middle of the adjustment seat 9, and the right end of the adjusting bolt 12 is threadedly connected to the middle of the oil control plate 13. The right end of the adjusting bolt 12 passes through the oil control plate 13 and extends into the central hole on the left end face of the plunger 11. With the cooperation of the elastic reset device, the oil control plate 13 controls the plunger 11 to move left or right by rotating the adjusting bolt 12, thereby adjusting the size of the oil chamber 7 and completing the regulation of the oil filling amount. In the above structure, when the size of the oil chamber 7 needs to be adjusted, the adjusting bolt 12 is rotated to make the oil control plate 13 push the plunger 11 to the right. At this time, the volume of the oil chamber 7 becomes smaller and the amount of oil stored inside is reduced. Figure 5 On the contrary, reverse rotation of the adjusting bolt 12, the oil control plate 13 moves to the left, at this time, under the action of the elastic reset device pushes the plunger 11 to the left to the limit position, such as Figure 4 As shown, at this time, the volume of the oil chamber 7 is the largest, the oil injection amount is at the maximum position, and the oil injection amount of the oil injector is easy and quick to adjust;
[0035] Among them, an L-shaped compressed air inlet corresponding to the upper end position of the compressed air hole 4 is made at the lower end surface of the adjustment seat 9. The compressed air inlet is connected to the interior of the shell 8. A plunger with a central air hole is sealed at the compressed air inlet position, and the other end hole of the compressed air hole 4 is connected to the central air hole of the plunger.
[0036] In the above structure, in order to quickly and easily grasp the size of the oil injection amount in the oil chamber 7, an observation groove is specially processed on the tail sleeve 10, and a scale is provided on the outer wall of the tail sleeve 10 located along the observation groove. In this way, the scale corresponding to the right end of the plunger 11 can be clearly viewed through the observation groove, and the oil injection amount can be directly read. The size of the oil chamber 7 can be clearly seen, and adjustment and operation are convenient.
[0037] like Figures 2-5The specific structure of the elastic reset device is shown as follows: the elastic reset device comprises a reset spring 14 and a T-shaped column 15, the T-shaped column 15 is coaxially arranged in the tail sleeve 10, and the large end of the T-shaped column 15 is fixed on the inner end face of the right end of the tail sleeve 10, one end of the reset spring 14 is sleeved on the small diameter section of the T-shaped column 15 and abuts against the stepped face formed by the small diameter section and the large diameter section, and the other end of the reset spring 14 extends into the center guide groove of the right end face of the plunger 11 and abuts against the groove bottom face of the center guide groove; in the above structure, the reset spring 14 is used to provide a reset thrust to the plunger 11, so that the inside of the oil cavity 7 is in a negative pressure state, thereby providing a required negative pressure for the connection of the one-way valve assembly.
[0038] As shown in Figures 2-5 The radial positioning connection between the oil control disc 13 and the adjusting seat 9 is specifically as follows: the left end face of the oil control disc 13 is uniformly provided with not less than two guide rods 16, the guide rods 16 are adapted to the guide holes in the corresponding positions of the right end face of the adjusting seat 9, and the radial positioning connection between the oil control disc 13 and the adjusting seat 9 is realized under the cooperation of the guide rods 16 and the guide holes; the above structure provides a guide adjustment for the horizontal movement of the oil control disc 13, avoids the rotation of the oil control disc 13, and ensures the stable and reliable horizontal movement of the oil control disc 13.
[0039] In order to ensure the sealing performance of the oil cavity 7, the following sealing structure is adopted: a sealing groove is formed on the outer wall of the convex ring of the plunger 11, and an O-shaped sealing ring 17 in contact with the inner wall of the shell 8 is arranged in the sealing groove; an O-shaped sealing ring 17 is arranged in the stepped hole of the shell 8 and located between the right stepped face of the stepped hole and the tail sleeve 10, and is used to seal the plunger 11, the shell 8 and the tail sleeve 10; a Y-shaped sealing ring 18 in contact with the hole wall of the shell 8 is sleeved and fixed on the left end of the plunger 11; specifically, a sealing ring is arranged at the stepped position of the adjusting screw 12 and the through hole of the adjusting seat 9, and a sealing ring in contact with the inner hole wall of the right end of the shell 8 is arranged on the outer wall of the stepped position of the small diameter section of the right end of the adjusting seat 9.
[0040] As shown in Figures 2-5As shown, the specific structure of the one-way valve assembly is as follows: the one-way valve assembly includes an oil suction stud 19 with a large head end located in the oil tank 6 and a steel ball 20 provided at the lower end of the oil suction stud 19, the lower end of the oil suction stud 19 passes through the oil outlet hole on the bottom surface of the oil tank 6 and is threadedly fixed to the mounting hole position on the base flange 2, and the steel ball 20 is located in the mounting hole, and the lower hole of the mounting hole corresponds to and is connected to the T-hole position provided on the outer wall of the shell 8 in the flow-adjustable oil injection device and connected to the oil chamber 7, and a sealing ring is provided on the inner hole wall of the T-hole, the oil suction stud 19 is provided with two upper ports located on its two side walls and connected to the inside of the oil tank 6, and the lower port is located at the T-shaped oil hole 21 on the lower end surface of the oil suction stud 19, the lower end of the oil suction stud 19 The surface is an arc surface adapted to the steel ball 20, and the steel ball 20 moves downward when there is no compressed air in the oil and gas channel 3 to connect the oil chamber 7 with the oil tank 6 through the T-shaped oil hole 21, and when there is compressed air in the oil and gas channel 3, the steel ball 20 moves upward to contact the arc surface of the lower end of the oil suction stud 19 to isolate the oil chamber 7 from the oil tank 6; in the above structure, conditions are provided for the connection and disconnection of the oil tank 6 and the oil chamber 7, so that when there is compressed air in the oil and gas channel 3, the steel ball 20 moves upward to contact and seal the lower end surface of the oil suction stud 19 to isolate the oil chamber 7 from the oil tank 6, and after the compressed air in the oil and gas channel 3 is withdrawn, the plunger 11 is pushed back under the action of the reset spring 14, so that the oil chamber 7 with a certain negative pressure is connected to the oil tank 6 after the steel ball 20 moves downward, and oil is filled into the oil chamber 7.
[0041] like Figures 2-6 As shown, the specific structure of the one-way valve group device is as follows: the one-way valve group device includes a horizontal elastic one-way valve group and a vertical elastic one-way valve group, wherein the vertical elastic one-way valve group is vertically installed on the upper end surface of the base 1, and the upper end of the vertical elastic one-way valve group is sealed with the lubricating oil outlet on the shell 8 in the flow-adjustable oil injection device, the horizontal elastic one-way valve group is horizontally installed on the side wall of the base 1, the left end of the horizontal elastic one-way valve group is connected to the lubricating oil hole 5, and the right end of the horizontal elastic one-way valve group is connected to the lower end of the vertical elastic one-way valve group through the oil channel 22.
[0042] like Figure 6As shown, the horizontal elastic one-way valve group comprises a spring 23, an oil passing plunger 24 and a connecting plug column 25, the connecting plug column 25 is in a T-shaped column structure, the small-diameter section of the connecting plug column 25 is screwed into a threaded hole in the side wall of the base 1 and communicates with the oil hole 5, and the large-diameter section of the connecting plug column 25 abuts against the step surface formed by the small-diameter section and the large-diameter section of the connecting plug column 25 on the side wall of the base 1, the outer wall of the left end of the connecting plug column 25 contacts with a sealing ring which is fitted and installed in the sealing groove on the hole wall of the threaded hole, the oil passing plunger 24 is fitted and installed in the inner hole of the small-diameter section of the connecting plug column 25, and one end of the spring 23 sleeved on the small-diameter section of the oil passing plunger 24 abuts against the step surface of the oil passing plunger 24, and the other end abuts against the bottom surface of the threaded hole in the side wall of the base 1, the Y-shaped oil hole 26 is formed in the oil passing plunger 24, the two right-end orifices of the Y-shaped oil hole 26 are located on the right-end tapered surface of the oil passing plunger 24, and the left-end orifice is located on the left-end surface of the oil passing plunger 24, and the Y-shaped oil hole 26 communicates with the inner hole of the small-diameter section of the connecting plug column 25 at both ends, the oil channel 22 communicates with the inner hole of the small-diameter section of the connecting plug column 25 through the oil passage provided at the transition position of the large-diameter section and the small-diameter section of the connecting plug column 25, and when there is compressed air in the oil-gas passage 3, the lubricating oil in the oil channel 22 makes the oil passing plunger 24 move leftward and flows into the oil-gas passage 3 through the Y-shaped oil hole 26, the inner hole of the small-diameter section of the connecting plug column 25 and the oil hole 5.
[0043] The vertical elastic one-way valve group comprises a spring 23, an oil passing plunger 24 and an oil passing plug column 27, the small-diameter section of the upper end of the oil passing plug column 27 is fitted into the lubricating oil outlet on the shell 8, and the large-diameter section of the lower end of the oil passing plug column 27 is screwed into the mounting hole on the upper end surface of the base 1 and is sealed by the sealing ring provided on the large-diameter section of the oil passing plug column 27 and contacting with the hole wall of the mounting hole and the shell 8, the oil passing plunger 24 and the spring 23 sleeved on the small-diameter section of the lower end of the oil passing plunger 24 are both arranged in the mounting hole on the upper end surface of the base 1, and the tapered section of the upper end of the oil passing plunger 24 extends into the central oil hole of the oil passing plug column 27, the Y-shaped oil hole 26 is formed in the oil passing plunger 24, the two upper-end orifices of the Y-shaped oil hole 26 are located on the tapered surface of the oil passing plunger 24, and the lower-end orifice is located on the lower-end surface of the oil passing plunger 24, the oil channel 22 communicates with the mounting hole on the upper end surface of the base 1, and when there is compressed air in the oil-gas passage 3, the lubricating oil in the oil cavity 7 makes the oil passing plunger 24 move downward and flows into the oil channel 22 through the central oil hole of the oil passing plug column 27 and the Y-shaped oil hole 26.
[0044] When there is compressed air in the oil-gas passage 3, the oil passing plunger 24 in the horizontal elastic one-way valve group moves downward under the premise that the compressed air applies rightward pressure to the plunger 11, and the oil passing plunger 24 in the vertical elastic one-way valve group moves leftward, so that the lubricating oil outlet hole 5 communicates with the oil cavity 7 to realize oil outlet.
[0045] As Figure 2As shown, the specific structure of the oil tank 6 is as follows: the oil tank 6 comprises an open-top tank body 6-1, an upper cover 6-2 sealingly fixed to the upper end of the tank body 6-1, a top cover 6-3 threadedly connected to the upper end of the upper cover 6-2, and a filter cartridge 6-4 arranged in the tank body 6-1, the upper cover 6-2 is an annular structure with the upper end smaller than the lower end, the T-shaped ring at the upper end of the filter cartridge 6-4 is overlapped with the upper end of the upper cover 6-2, and the inverted conical filter cartridge fixed on the T-shaped ring is located in the tank body 6-1.
[0046] In the scheme, the pressure difference generated by the compressed fluid on different pressure areas is used to work when the pressure is the same, there is no external drive, the cost is small, and the lubricating oil in the oil tank 6 is not directly contacted with the compressed air, so the lubricating oil in the oil tank 6 will not be contaminated by dust in the air, by designing the oil injection amount adjusting structure and calibrating the oil injection amount scale, the oil injection amount can be directly read, the adjustment and operation are convenient, the application range is expanded, and the scheme is in a leading position in the industry, has a wide application field and good popularization value.
[0047] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.
[0048] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.
Claims
1. An oiler for lubricating a compressed-fluid-based diesel engine starting air distributor, characterized in that: The application relates to a flow-adjustable oil injection device for a diesel engine, which comprises a base (1) fixedly connected with a diesel engine distributor and a compressed air source pipeline, wherein the diesel engine distributor and the compressed air source pipeline are communicated through an oil-gas passage (3) in the base (1), the upper end of the base (1) is detachably fixedly connected with a base flange (2) above the base (1), a flow-adjustable oil injection device is fixed between the base (1) and the base flange (2), the upper end of the base flange (2) is sealingly provided with an oil tank (6) with a filtering and dustproof function, an oil outlet hole at the lower end of the oil tank (6) is communicated with an oil inlet of the flow-adjustable oil injection device through a one-way valve assembly arranged on the base flange (2), and the lubricating oil in the oil tank (6) is sent into an oil cavity (7) in the flow-adjustable oil injection device through the one-way valve assembly and the oil inlet, a compressed air hole (4) and a lubricating oil hole (5) are arranged in the base (1) and have one end orifices located on the hole wall of the oil-gas passage (3), the other end orifice of the compressed air hole (4) is located on the upper end surface of the base (1) and is sealingly communicated with a compressed air inlet of the flow-adjustable oil injection device, the other end of the lubricating oil hole (5) is communicated with a lubricating oil outlet of the flow-adjustable oil injection device through a one-way valve assembly, and the lubricating oil in the oil cavity (7) in the flow-adjustable oil injection device is sent into the oil-gas passage (3) through the one-way valve assembly and the lubricating oil hole (5) under the action of the compressed air entering the flow-adjustable oil injection device through the oil-gas passage (3) and the compressed air hole (4), and then the lubricating oil is mixed with the compressed air and is sent into the diesel engine distributor.
2. The compressed-fluid-based diesel starting air dryer lubrication oiler of claim 1, wherein: The flow-adjustable oil injection device comprises a plunger (11), a shell (8) with two open ends, an adjusting seat (9) and a tail sleeve (10) sealingly and fixedly connected to the two ends of the shell (8) respectively, the plunger (11) is slidingly sealed in the shell (8), the right end of the plunger (11) extends into the tail sleeve (10) and is adaptively connected with an elastic reset device arranged in the tail sleeve (10), an oil cavity (7) is formed between the right end face of a convex ring on the outer circumferential wall of the left end of the plunger (11) and the left end step face of a stepped hole in the shell (8), the oil cavity (7) is communicated with a one-way valve assembly through an oil inlet on the plunger (11), a control oil disc (13) is arranged in the shell (8) and is located on the left end outside of the plunger (11) and is radially positioned and connected with the adjusting seat (9), a regulating screw (12) is axially positioned and sealed in the through hole in the middle of the adjusting seat (9), the right end of the regulating screw (12) is threadedly connected with the middle of the control oil disc (13), the right end of the regulating screw (12) penetrates through the control oil disc (13) and extends into the center hole of the left end face of the plunger (11), the plunger (11) is controlled to move leftward or rightward by the control oil disc (13) through the rotating regulating screw (12) under the cooperation of the elastic reset device, the size of the oil cavity (7) is adjusted, and the injection amount is controlled.
3. The compressed-fluid-based diesel starting air dryer lubrication oiler of claim 2, wherein: The elastic reset device comprises a reset spring (14) and a T-shaped column (15), the T-shaped column (15) is coaxially arranged in the tail cover (10), the large head end of the T-shaped column (15) is fixed on the inner end face of the right end of the tail cover (10), one end of the reset spring (14) is sleeved on the small diameter section of the T-shaped column (15) and abuts on the step face formed by the small diameter section and the large diameter section, and the other end of the reset spring (14) extends into the central guide groove of the right end face of the plunger (11) and abuts on the groove bottom face of the central guide groove.
4. The compressed-fluid-based diesel starting air dryer lubrication oiler of claim 3, wherein: The left end face of the oil control disc (13) is uniformly provided with not less than two guide rods (16), the guide rods (16) are adapted to the guide holes in the corresponding positions of the right end face of the adjusting seat (9), and the radial positioning connection of the oil control disc (13) and the adjusting seat (9) is realized through the cooperation of the guide rods (16) and the guide holes.
5. The compressed-fluid-based diesel starting air regulator lubrication oiler of claim 4, wherein: The convex ring outer wall of the plunger (11) is provided with a sealing groove, and the sealing groove is provided with an O-shaped sealing ring (17) in contact with the inner wall of the shell (8), the stepped hole of the shell (8) is provided with an O-shaped sealing ring (17) between the right step face of the stepped hole and the tail cover (10) and used for sealing the plunger (11), the shell (8) and the tail cover (10), and the left end portion of the plunger (11) is sleeved and fixed with a Y-shaped sealing ring (18) in contact with the hole wall of the shell (8).
6. The compressed-fluid-based diesel starting air regulator lubrication oiler of claim 5, wherein: The adjusting bolt (12) and the step position of the through hole in the middle of the adjusting seat (9) are provided with a sealing ring, and the outer wall of the step position of the small diameter section of the right end of the adjusting seat (9) is provided with a sealing ring in contact with the inner hole wall of the right end of the shell (8).
7. The compressed-fluid-based diesel starting air dryer lubrication oiler of claim 1, wherein: The one-way valve assembly comprises an oil suction stud (19) located in the oil tank (6) and a steel ball (20) arranged at the lower end of the oil suction stud (19), the lower end of the oil suction stud (19) penetrates through the oil outlet hole on the bottom face of the oil tank (6) and is threadedly connected to the mounting hole opening position of the base flange (2), the steel ball (20) is located in the mounting hole, the lower hole opening of the mounting hole is in correspondence with and communicates with the T-shaped hole position on the outer wall of the shell (8) in the flow adjustable oil injection device and communicates with the oil cavity (7), the inner hole wall of the T-shaped hole is provided with a sealing ring, the oil suction stud (19) is provided with two T-shaped oil holes (21) with upper ports on the two side walls and lower ports on the lower end face of the oil suction stud (19) and in communication with the inside of the oil tank (6), the lower end face of the oil suction stud (19) is an arc surface matched with the steel ball (20), and the steel ball (20) moves downward when there is no compressed air in the oil gas passage (3) to make the oil cavity (7) communicate with the oil tank (6) through the T-shaped oil hole (21), and the steel ball (20) moves upward when there is compressed air in the oil gas passage (3) to make the oil cavity (7) cut off from the oil tank (6).
8. The compressed-fluid-based diesel starting air dryer lubrication oiler of claim 1, wherein: The unidirectional valve group device comprises a horizontal elastic unidirectional valve group and a vertical elastic unidirectional valve group, wherein the vertical elastic unidirectional valve group is vertically installed on the upper end surface of the base (1), and the upper end of the vertical elastic unidirectional valve group is in sealing connection with the lubricating oil outlet on the shell (8) of the flow-adjustable oil injection device; the horizontal elastic unidirectional valve group is horizontally installed on the side wall of the base (1), the left end of the horizontal elastic unidirectional valve group is in communication with the lubricating oil hole (5), and the right end of the horizontal elastic unidirectional valve group is in communication with the lower end of the vertical elastic unidirectional valve group through the oil channel (22).
9. The compressed-fluid-based diesel starting air regulator lubrication oiler of claim 8, wherein: The horizontal elastic unidirectional valve group comprises a spring (23), an oil passing plunger (24) and a connecting plug column (25), the connecting plug column (25) is in a T-shaped columnar structure, the small-diameter section of the connecting plug column (25) is threadedly connected into the threaded hole in the side wall of the base (1) which is in communication with the lubricating oil hole (5), and the step surface formed by the large-diameter section and the small-diameter section of the connecting plug column (25) abuts against the side wall of the base (1); the left end outer wall of the connecting plug column (25) is in contact with a sealing ring which is fitted and installed in the sealing groove on the hole wall of the threaded hole; the oil passing plunger (24) is fitted and installed in the inner hole of the small-diameter section of the connecting plug column (25), and one end of the spring (23) sleeved on the small-diameter section of the oil passing plunger (24) abuts against the step surface of the oil passing plunger (24), and the other end abuts against the hole bottom surface of the threaded hole in the side wall of the base (1); the oil passing plunger (24) is internally provided with a Y-shaped oil hole (26) with two right end orifices located on the right end conical surface and a left end orifice located on the left end surface, and the left and right ends of the Y-shaped oil hole (26) are in communication with the inner hole of the small-diameter section of the connecting plug column (25); the oil channel (22) is in communication with the inner hole of the small-diameter section of the connecting plug column (25) through the oil passage provided at the transition position of the large-diameter section and the small-diameter section of the connecting plug column (25); when the compressed air is in the oil and gas channel (3), the lubricating oil in the oil channel (22) makes the oil passing plunger (24) move leftward and flow into the oil and gas channel (3) through the Y-shaped oil hole (26), the inner hole of the small-diameter section of the connecting plug column (25) and the lubricating oil hole (5); The vertical elastic one-way valve group comprises a spring (23), an oil passing plunger (24) and an oil passing plug column (27), the small diameter section of the upper end of the oil passing plug column (27) is adapted to the oil outlet of the shell (8), the large diameter section of the lower end of the oil passing plug column (27) is screwed into the mounting hole of the upper end surface of the base (1) and is sealed by the sealing ring provided on the large diameter section of the oil passing plug column (27) and in contact with the hole wall of the mounting hole and the shell (8), the oil passing plunger (24) and the spring (23) sleeved on the small diameter section of the lower end of the oil passing plunger (24) are both provided in the mounting hole of the upper end surface of the base (1), and the conical section of the upper end of the oil passing plunger (24) extends into the central oil hole of the oil passing plug column (27), the Y-shaped oil hole (26) with two orifices on the upper end located on the conical surface and the lower end orifice located on the lower end surface is formed in the oil passing plunger (24), the oil channel (22) is in communication with the mounting hole of the upper end surface of the base (1), and when the compressed air is in the oil passage (3), the oil in the oil cavity (7) makes the oil passing plunger (24) move downward and flow into the oil channel (22) through the central oil hole of the oil passing plug column (27) and the Y-shaped oil hole (26).
10. A lubricator for a compressed-fluid-based diesel starting air regulator according to any one of claims 1-9, characterized in that: The oil tank (6) comprises an open-top tank body (6-1), a cover (6-2) sealingly fixed to the upper end of the tank body (6-1), a top cover (6-3) screwed to the upper end of the cover (6-2), and a filter cartridge (6-4) provided in the tank body (6-1), the cover (6-2) is an annular structure with the upper end smaller than the lower end, the T-shaped ring at the upper end of the filter cartridge (6-4) is overlapped with the upper end opening of the cover (6-2), and the inverted conical filter cartridge fixed to the T-shaped ring is located in the tank body (6-1).