Oil injector for lubricating starting air distributor of diesel engine

Abstract

According to the oil injector for lubricating the diesel engine starting air distributor, the upper end of a base is detachably and fixedly connected with a base flange above the base, a flow-adjustable oil injection device is fixed between the base and the base flange, and an oil tank with the filtering and dustproof functions is arranged at the upper end of the base flange in a sealed mode; an oil outlet hole in the lower end of the oil tank is communicated with an oil inlet in the flow-adjustable oil injection device through a one-way valve assembly arranged on the base flange; a compressed air hole and a lubricating oil hole are formed in the base, a hole opening in the other end of the compressed air hole is located in the upper end face of the base and communicated with a compressed air inlet of the flow-adjustable oil injection device in a sealed mode, and the other end of the lubricating oil hole is communicated with a lubricating oil outlet of the flow-adjustable oil injection device through a one-way valve set device. The problems that the oil injection amount of a traditional oil injector cannot be adjusted, and the oil injector is blocked are solved, the situation that abnormal abrasion occurs between the distribution disc and the shell of the mechanical air distributor is avoided, and the starting reliability of a diesel engine is protected.

Description

Technical Field

[0001] The invention belongs to the technical field of diesel engine lubrication systems, and in particular relates to an oiler for lubricating a diesel engine starting air distributor. Background Art

[0002] The moving parts of high-power diesel engines are heavy, and the hysteresis torque is large when starting. They are usually started by compressed air starting systems. At present, most high-power diesel engines are still started by mechanical air distributor control. The mechanical air distributor is driven by the diesel engine camshaft to control the compressed air connection sequence, connection time, and connection duration of the starting control valve on the cylinder head, thereby controlling the opening sequence, opening time, and opening duration of the starting control valve, so that the starting air can enter the cylinder at the required time and last for a certain period of time, pushing the piston to drive the crankshaft to rotate. After the diesel engine reaches the ignition speed, the diesel engine executes ignition and starts successfully. After the start is successful, the compressed air is disconnected, and the distribution plate is separated from the body and does not contact; when the diesel engine starts, the two end faces of the distribution plate are different. After the compressed air enters the distribution plate, a thrust to the right will be generated, so that the distribution plate and the shell are closely fitted to prevent the compressed air from being released between the distribution plate and the shell. Since the distribution plate and the shell are both made of metal, if the fitting surface is not lubricated, dry friction occurs between the metals, resulting in wear between the metals, which will not be able to continue to run. For this purpose, an oiler is installed on the system in front of the air distributor. The function of the oiler is: when the diesel engine is started, an appropriate amount of lubricating oil is injected into the control air pipeline from the oiler. After the lubricating oil is mixed with compressed air, it flows through the mechanical air distributor to lubricate the distribution plate and the distributor body, avoiding dry friction between the distribution plate and the distributor body bracket, causing wear and damage to parts.

[0003] Currently used Figure 7-8 The working principle of the lubricator shown is: at startup, after the compressed air is connected, the compressed air opens the one-way valve A2 through hole A1, and then passes through holes A3 and A4 to the oil tank A5. Since 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 from A7 through the one-way valve A8 and mixed with the compressed air to lubricate the distribution plate and the distributor body. However, there are the following defects when in use: ① The amount of oil injected by the lubricator depends on the aperture size of hole A7 connected to the oil tank A8. The aperture determines the amount of oil injected. If adjustment is required, the hole A7 needs to be reprocessed; ② At startup, compressed air enters the lubricator and contacts with the lubricating oil. Some tiny dust in the air will gradually contaminate the lubricating oil and produce scaling. The dirt will block the oil pipe, making the lubricator unable to inject oil or reducing the amount of oil injected, resulting in abnormal wear of the mechanical distributor. Therefore, it is necessary to make improvements to the above problems. Summary of the invention

[0004] The technical problem solved by the present invention is as follows: to provide an oiler for lubricating a diesel engine starting air distributor, which utilizes the pressure of compressed air itself and the negative pressure adsorption principle, adopts an oil tank with filtering and dustproof functions, and at the same time, arranges a flow-adjustable oiling device connected with the oil tank and the oil and gas passage on the base on the base and the base flange, and under the action of compressed air that partially enters the flow-adjustable oiling device through the compressed air hole in the oil and gas passage, the lubricating oil in the oil chamber of the flow-adjustable oiling device enters the oil and gas passage through the one-way valve group device and the lubricating oil hole, mixes with the compressed air and is sent to the diesel engine distributor, thereby solving the problems of the traditional oiler that the oiling amount cannot be adjusted and the oiler is blocked, eliminating the contamination, blockage, gradual reduction of the oiling amount or failure to oil in the oiler, avoiding abnormal wear between the distribution plate and the shell of the mechanical air distributor, and protecting the reliability of diesel engine starting.

[0005] The technical solution adopted by the present invention is: an oiler for lubricating a diesel engine starting air distributor, comprising a base fixedly connected to a diesel engine distributor and a compressed air source pipeline, and the diesel engine distributor and the compressed air source pipeline are communicated through an oil and gas channel inside the base, the upper end of the base is detachably fixedly connected to a base flange above it, and a flow-adjustable oiling device is fixed between the base and the base flange, an oil tank with a filtering and dust-proof function is sealed at the upper end of the base flange, and an oil outlet hole at the lower end of the oil tank is communicated with an oil inlet on the flow-adjustable oiling device through a one-way valve assembly arranged on the base flange, and the lubricating oil in the oil tank that passes through the one-way valve assembly is delivered to the oil inlet through the oil inlet. The oil cavity in the flow-adjustable oil injection device; the base is provided with a compressed air hole and a lubricating oil hole with one end opening located on the hole wall of the oil and gas channel, the other end opening of the compressed air hole is located on the upper end surface of the base and is sealed and connected with the compressed air inlet of the flow-adjustable oil injection device, and the other end of the lubricating oil hole is connected with the lubricating oil outlet of the flow-adjustable oil injection device through a one-way valve group device, and under the action of the compressed air that partially passes through the compressed air hole in the oil and gas channel and enters the adjustable oil injection device, the lubricating oil in the oil cavity of the flow-adjustable oil injection device enters the oil and gas channel through the one-way valve group device and the lubricating oil hole, and is mixed with the compressed air and sent to the diesel engine distributor.

[0006] The cam is secured to the bottom of the oil pump, and the cam is secured to the bottom of the oil pump with a spring, which is then engaged with the pump in the oil pumping station. The cam is secured to the bottom of the oil pump with a spring, and the cam is secured to the bottom of the oil pump with a spring.

[0007] Furthermore, the elastic reset device includes a reset spring and a T-shaped column, the T-shaped column is coaxially arranged in the tail sleeve, and the large head end of the T-shaped column is fixed to the inner end surface of the right end of the tail sleeve, one end of the reset spring is sleeved on the small diameter section of the T-shaped column and abuts against the step surface formed by the small diameter section and the large diameter section, and the other end of the reset spring extends into the center guide groove on the right end surface of the plunger and abuts against the bottom surface of the center guide groove.

[0008] Furthermore, at least two guide rods are evenly distributed on the left end surface of the oil control plate, and the guide rods are adapted to the guide holes at the corresponding positions on the right end surface of the adjustment seat, and the radial positioning connection between the oil control plate and the adjustment seat is realized under the cooperation of the guide rods and the guide holes.

[0009] Furthermore, a sealing groove is formed on the outer wall of the convex ring of the plunger, and an O-ring is provided in the sealing groove for sealing in contact with the inner wall of the shell. An O-ring is provided in the stepped hole of the shell and is located between the right step surface of the stepped hole and the tail sleeve and is used to seal the plunger, the shell and the tail seat. A Y-ring is fixedly mounted on the left end of the plunger and is in contact with the shell hole wall.

[0010] Furthermore, a sealing ring is provided at the step position between the adjusting bolt and the middle through hole of the adjusting seat, and a sealing ring is provided on the outer wall of the step position of the small diameter section at the right end of the adjusting seat to contact the inner hole wall at the right end of the shell.

[0011] Furthermore, the one-way valve assembly includes an oil suction stud with a large head 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 fixedly connected to the mounting hole orifice position on the base flange, and the steel ball is located in the mounting hole, and the lower orifice of the mounting hole corresponds to and is connected with the T-shaped hole position provided on the outer wall of the shell in the flow-adjustable oil filling device and connected with the oil chamber, a sealing ring is provided on the inner hole wall of the T-shaped hole, the oil suction stud is provided with two upper ports located on its two side walls and connected with the inside of the oil tank, and the lower port is located at the T-shaped oil hole on the lower end surface of the oil suction stud, the lower end surface of the oil suction stud is an arc surface adapted to the steel ball, and the steel ball moves downward when there is no compressed air in the oil and gas channel to make the oil chamber connected with the oil tank through the T-shaped oil hole, and the steel ball moves upward to contact with the arc surface of the lower end of the oil suction stud when there is compressed air in the oil and gas channel to separate the oil chamber from the oil tank.

[0012] Furthermore, 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, and the upper end of the vertical elastic one-way valve group is sealed and connected to the lubricating oil outlet on the shell of the flow-adjustable oil injection device, and 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 is connected to the lubricating oil hole, 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 an oil channel.

[0013] Furthermore, the horizontal elastic one-way valve group includes a spring, an oil-passing plunger and a connecting plug, the connecting plug is a T-shaped columnar structure, the small diameter section of the connecting plug is threadedly connected to the threaded hole on the side wall of the base that is connected to the lubricating hole, and the step surface formed by the large diameter section and the small diameter section of the connecting stud abuts against the side wall of the base, the outer wall of the left end of the connecting plug contacts the sealing ring in the sealing groove on the wall of the smooth wall section of the threaded hole, the oil-passing plunger is adapted to be installed in the inner hole of the small diameter section of the connecting plug, and one end of the spring sleeved on the small diameter section of the oil-passing plunger abuts against the oil-passing plunger. The oil-through plunger is provided with a Y-shaped oil hole on the tapered surface of the right end and the left end on the left end surface, and the left and right ends of the Y-shaped oil hole are connected with the inner hole of the small diameter section of the connecting plug, and the oil passage is connected with the inner hole of the small diameter section of the connecting plug through the oil passage provided at the transition position between the large diameter section and the small diameter section of the connecting plug, and when there is compressed air in the oil-gas passage, the lubricating oil in the oil passage causes the oil-through plunger to move left and flows into the oil-gas passage through the Y-shaped oil hole, the inner hole of the small diameter section of the connecting plug and the lubricating oil hole;

[0014] The vertical elastic one-way valve group includes a spring, an oil-through plunger and an oil-through plug column. The small diameter section at the upper end of the oil-through plug column is adapted to the lubricating oil outlet on the shell, and the large diameter section at the lower end of the oil-through plug column is threadedly connected to the mounting hole on the upper end face of the base, and is sealed by a sealing ring arranged on the large diameter section of the oil-through plug column and in contact with the wall of the mounting hole and the shell. The oil-through plunger and the spring sleeved on the small diameter section at the lower end of the oil-through plunger are both arranged in the mounting hole on the upper end face of the base, and the conical section at the upper end of the oil-through plunger extends into the central oil hole of the oil-through plug column. The oil-through plunger is internally provided with a Y-shaped oil hole with two upper orifices located on the conical surface and the lower orifice located on its lower end face. The oil passage is connected to the mounting hole on the upper end face of the base, and when there is compressed air in the oil and gas passage, the lubricating oil in the oil chamber causes the oil-through plunger to move downward and flow into the oil passage through the central oil hole and the Y-shaped oil hole of the oil plug column.

[0015] Furthermore, the oil tank includes an upper end of an open box body, an upper cover sealed and fixed to an upper port of the box body, a top cover threadedly connected to the upper end of the upper cover, and a filter cartridge arranged in the box body, the upper cover is an annular structure with both ends open and the upper end size smaller than the lower end size, the T-ring at the upper end of the filter cartridge overlaps the upper port position of the upper cover, and the inverted cone filter cartridge fixed on the T-ring is located in the box body.

[0016] The advantages of the present invention compared with the prior art are:

[0017] 1. This technical solution uses the pressure of compressed air itself to make a small part of the compressed air in the oil and gas channel enter the housing through the compressed air hole, and after applying pressure to the left end of the plunger, the lubricating oil in the oil chamber enters the oil and gas channel through the one-way valve group device and the lubricating oil hole, and is mixed with the compressed air and sent to the diesel engine distributor. Under the action of the compressed air in the oil and gas channel, it is only necessary to make a small part of the compressed air in the oil and gas channel fill the gap in the housing located at the connecting part of the left end of the plunger and the compressed air hole, and no other power structure is required;

[0018] 2. This technical solution uses the principle of negative pressure adsorption. By fixing the T-shaped column in the tailstock, and making the reset spring connected to the T-shaped column press against the central guide groove on the right end face of the plunger, when there is no compressed air in the oil and gas channel, the reset spring pushes the plunger to reset. At this time, the oil chamber is in a negative pressure state, so that the one-way valve assembly is opened, and the lubricating oil in the oil tank is injected into the oil chamber. The oil chamber can be automatically filled with oil without other oil injection structures;

[0019] 3. This technical solution provides conditions for automatic on-off between the oil tank and the oil chamber, and between the oil chamber and the lubricating oil hole by setting a one-way valve assembly on the oil tank and the base flange, and setting a one-way valve group device on the base, without manual control, and realizing automatic on-off control 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 problem that the oil injection amount of the traditional oiler cannot be adjusted and the oiler is blocked. It eliminates the contamination in the oiler, related blockage, and the gradual reduction of the oil injection amount or the inability to inject oil, avoids abnormal wear between the distribution plate and the shell of the mechanical air distributor, and protects the reliability of diesel engine starting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the structure of the present invention;

[0022] Figure 2 for Figure 1 Middle BB section view;

[0023] Figure 3 This is a schematic diagram of the flow of compressed air and lubricating oil in the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the maximum oil injection position of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure after the oil injection amount is adjusted in the present invention;

[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 oiler from one perspective;

[0028] Figure 8 This is a schematic diagram of the internal structure of an existing oiler from another perspective. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention Figure 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0032] Lubricator for lubrication of diesel engine starting air distributor, such as Figure 1-6As shown, it includes a base 1 fixedly connected to a diesel engine distributor and a compressed air source pipeline, and the diesel engine distributor and the compressed air source pipeline are communicated through an oil and gas channel 3 inside the base 1, the upper end of the base 1 is detachably fixedly connected to a base flange 2 above it, and 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 sealed with an oil tank 6 with a filtering and dust-proof function, and the oil outlet at the lower end of the oil tank 6 is communicated with the oil inlet on 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 passing through the one-way valve assembly is delivered to the oil chamber 7 in the flow-adjustable oil injection device through the oil inlet; a compressed air hole 4 and a lubricating oil hole 5 with one end opening located on the hole wall of the oil and gas channel 3 are provided in the base 1, and the other end opening of the compressed air hole 4 is located on the upper end surface of the base 1 and is connected to the flow-adjustable oil injection device. The compressed air inlet of the device is sealed and connected, and the other end of the lubricating hole 5 is connected to the lubricating oil outlet of the flow-adjustable oil injection device through a one-way valve group device, and under the action of the compressed air that partially passes through the compressed air hole 4 in the oil and gas channel 3 and enters the flow-adjustable oil injection device, the lubricating oil in the oil chamber 7 of the flow-adjustable oil injection device enters the oil and gas channel 3 through the one-way valve group device and the lubricating oil hole 5, and is mixed with the compressed air and sent to the diesel engine distributor; in the above structure, mechanical automatic on-off control is adopted, and an oil tank with filtering and dustproof function is adopted, which effectively solves the problem that the oil injection amount of the traditional oil injector cannot be adjusted and the problem of oil injector blockage is solved, eliminates the pollution in the oil injector, the blockage, the gradual reduction of the oil injection amount or the inability to inject oil, avoids the abnormal wear between the distribution plate and the shell of the mechanical air distributor, and protects the reliability of diesel engine starting.

[0033] Among them, a plurality of distance sleeves are evenly distributed between the upper end surface of the base 1 and the base flange 2, and the base 1 and the base flange 2 are fixedly connected with the distance sleeves by bolts, so as to realize a detachable fixed connection between the base 1 and the base flange 2. This structure realizes reliable fixation of the flow-adjustable oil injection device and provides conditions for reliable support of the oil tank 6;

[0034] like Figure 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 fixedly connected 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 adaptively connected to the elastic reset device arranged 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, which is located outside the left end of the plunger 11 and is connected to 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 penetrates 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, so as to adjust the size of the oil chamber 7 and complete the regulation of the oil injection 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 move 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, the reverse rotation of the adjusting bolt 12 causes the oil control plate 13 to move to the left. At this time, the plunger 11 is pushed to the left to the limit position under the action of the elastic reset device, as shown in FIG. 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 can be adjusted conveniently and quickly;

[0035] Among them, an L-shaped compressed air inlet corresponding to the upper port position of the compressed air hole 4 is formed at the lower end surface of the adjustment seat 9, and 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 conveniently grasp the amount of oil injected into the oil chamber 7, an observation groove is specially processed on the tail sleeve 10, and a scale located at the edge of the observation groove is provided on the outer wall of the tailstock 10. In this way, the scale corresponding to the right end of the plunger 11 can be clearly viewed through the observation groove, and the amount of oil injected can be directly read, so that the size of the oil chamber 7 can be clearly seen, and adjustment and operation are convenient.

[0037] like Figure 2-5As shown, the specific structure of the elastic reset device is as follows: the elastic reset device includes 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 head end of the T-shaped column 15 is fixed to the inner end surface 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 on the step surface 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 surface of the plunger 11 and abuts on the groove bottom surface of the central 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 chamber 7 is in a negative pressure state, thereby providing the required negative pressure for the connection of the one-way valve assembly;

[0038] like Figure 2-5 As shown, the radial positioning connection between the oil control plate 13 and the adjustment seat 9 is specifically as follows: at least two guide rods 16 are evenly distributed on the left end surface of the oil control plate 13, and the guide rods 16 are adapted to the guide holes at the corresponding positions on the right end surface of the adjustment seat 9, and the radial positioning connection between the oil control plate 13 and the adjustment seat 9 is realized with the cooperation of the guide rods 16 and the guide holes. The above structure provides guide adjustment for the horizontal movement of the oil control plate 13, while avoiding the rotation of the oil control plate 13, thereby ensuring stable and reliable horizontal movement of the oil control plate 13.

[0039] Among them, in order to ensure the sealing performance of the oil chamber 7, the following sealing structure is specially adopted: a sealing groove is formed on the outer wall of the convex ring of the plunger 11, and an O-ring 17 is provided in the sealing groove to seal with the inner wall of the housing 8; an O-ring 17 is provided in the stepped hole of the housing 8, which is located between the right step surface of the stepped hole and the tail sleeve 10 and is used to seal the plunger 11, the housing 8 and the tail seat 10; a Y-ring 18 in contact with the hole wall of the housing 8 is fixedly mounted on the left end of the plunger 11; specifically, a sealing ring is provided at the step position between the adjusting bolt 12 and the middle through hole of the adjusting seat 9, and a sealing ring in contact with the inner hole wall of the right end of the housing 8 is provided on the outer wall of the step position of the small diameter section at the right end of the adjusting seat 9.

[0040] like Figure 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 arranged 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 position of the mounting hole on the base flange 2, and the steel ball 20 is located in the mounting hole, and the lower opening of the mounting hole corresponds to and is connected to the T-shaped 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-shaped hole, and 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 on the T-shaped oil hole 21 on the lower end surface of the oil suction stud 19, and 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 the steel ball 20 moves upward to contact the arc surface of the lower end of the oil suction stud 19 when there is compressed air in the oil and gas channel 3 to separate 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 with the lower end surface of the oil suction stud 19 to separate the oil chamber 7 from the oil tank 6, and after the compressed air in the oil and gas channel 3 is removed, the plunger 11 is reset 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 Figure 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 and connected to 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 includes a spring 23, an oil-passing plunger 24 and a connecting plug 25. The connecting plug 25 is a T-shaped columnar structure. The small diameter section of the connecting plug 25 is threadedly connected to the threaded hole on the side wall of the base 1 that is connected to the lubricating hole 5, and the step surface formed by the large diameter section and the small diameter section of the connecting stud 25 abuts against the side wall of the base 1. The outer wall of the left end of the connecting plug 25 contacts the sealing ring in the sealing groove on the wall of the smooth wall section of the threaded hole. The oil-passing plunger 24 is adapted to be installed in the inner hole of the small diameter section of the connecting plug 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. The oil passage 22 is connected to the inner hole of the small diameter section of the connecting plug 25 through the oil passage 22 provided at the transition position between the large diameter section and the small diameter section of the connecting plug 25, and when there is compressed air in the oil-gas passage 3, the lubricating oil in the oil passage 22 causes the oil passage 24 to 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 25 and the lubricating oil hole 5;

[0043] The vertical elastic one-way valve group includes a spring 23, an oil-through plunger 24 and an oil-through plunger 27. The small diameter section at the upper end of the oil-through plunger 27 is adapted to the lubricating oil outlet on the housing 8, and the large diameter section at the lower end of the oil-through plunger 27 is threadedly connected to the mounting hole on the upper end surface of the base 1, and is sealed by a sealing ring provided on the large diameter section of the oil-through plunger 27 and in contact with the wall of the mounting hole and the housing 8. The oil-through plunger 24 and the spring 23 sleeved on the small diameter section at the lower end of the oil-through plunger 24 are both provided on the base 1. The oil passage 22 is connected with the mounting hole on the upper end surface of the base 1, and when compressed air is present in the oil-gas passage 3, the lubricating oil in the oil chamber 7 causes the oil passage 24 to move downward and pass through the central oil hole of the oil plug column 27 and the Y-shaped oil hole 26 to flow into the oil passage 22.

[0044] When there is compressed air in the oil-gas passage 3, the compressed air applies rightward pressure to the plunger 11, so that the oil-passing plunger 24 in the horizontal elastic one-way valve group moves downward and the oil-passing plunger 24 in the vertical elastic one-way valve group moves leftward, so that the oil hole 5 is connected with the oil chamber 7 and the oil is discharged;

[0045] like Figure 2As shown, the specific structure of the oil tank 6 is as follows: the oil tank 6 includes a box body 6-1 with an open upper end, an upper cover 6-2 sealed and fixed to the upper port of the box 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 box body 6-1, the upper cover 6-2 is an annular structure with both ends open and the upper end size smaller than the lower end size, the T-ring at the upper end of the filter cartridge 6-4 overlaps the upper port position of the upper cover 6-2, and the inverted cone filter cartridge fixed on the T-ring is located in the box body 6-1.

[0046] In this solution, the pressure difference generated by the compressed fluid on the pressure-bearing areas of different sizes when the pressure is the same is utilized. There is no external drive and the cost is low. The lubricating oil in the oil tank 6 is not in direct contact with the compressed air. Therefore, the lubricating oil in the oil tank 6 will not be contaminated by dust in the air. By designing the oil filling amount adjustment structure and calibrating the oil filling amount, the oil filling amount can be directly read. The adjustment and operation are convenient, and the scope of application is expanded. It is in a leading position in the industry and has a wider application field and good promotion value.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Lubricator for lubrication of diesel engine starting air distributor, characterized by: The invention comprises a base (1) fixedly connected to a diesel engine distributor and a compressed air source pipeline, wherein the diesel engine distributor and the compressed air source pipeline are connected via an oil and gas passage (3) inside the base (1), a plurality of distance sleeves are evenly distributed between the upper end surface of the base (1) and the base flange (2), and a flow-adjustable oil injection device is arranged between the base (1) and the base flange (2) and is detachably fixedly connected to the base flange (2), and is connected to the base (1) and the base flange (2) as a whole by bolts connecting the base (1), the base flange (2) and the distance sleeves as a whole, wherein an oil tank (6) having a filtering and dustproof function is sealed at the upper end of the base flange (2), and an oil outlet hole at the lower end of the oil tank (6) is connected to an oil inlet on the flow-adjustable oil injection device via a one-way valve assembly arranged on the base flange (2), and the oil inlet is used to inject oil into the oil tank (6). 6) and the lubricating oil passing through the one-way valve assembly is delivered to the oil chamber (7) in the flow-adjustable oil injection device; the base (1) is provided with a compressed air hole (4) and a lubricating oil hole (5) with one end opening located on the hole wall of the oil-gas passage (3); the other end opening of the compressed air hole (4) is located on the upper end surface of the base (1) and is sealed and connected to the compressed air inlet of the flow-adjustable oil injection device, and the other end of the lubricating oil hole (5) is connected to the lubricating oil outlet of the flow-adjustable oil injection device through a one-way valve group device, and under the action of the compressed air that partially passes through the compressed air hole (4) in the oil-gas passage (3) and enters the flow-adjustable oil injection device, the lubricating oil in the oil chamber (7) of the flow-adjustable oil injection device enters the oil-gas passage (3) through the one-way valve group device and the lubricating oil hole (5), and is mixed with the compressed air and delivered to the diesel engine distributor.

2. The oiler for lubricating the diesel engine starting air distributor according to claim 1, characterized in that: The flow-adjustable oil injection device comprises a plunger (11), a housing (8) with openings at both ends, an adjustment seat (9) and a tail sleeve (10) respectively sealed and fixedly connected 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 adaptively connected to an elastic reset device arranged 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 at the left end of the stepped inner hole of the housing (8), and the oil chamber (7) is connected to the one-way valve assembly through the oil inlet on the plunger (11), The housing (8) is provided with an oil control plate (13) located outside the left end of the plunger (11) and radially positioned and connected to the adjustment seat (9), and the right end of the adjustment bolt (12) axially positioned and sealed in the middle through hole of the adjustment seat (9) is threadedly connected to the middle of the oil control plate (13). The right end of the adjustment bolt (12) penetrates the oil control plate (13) and extends into the center hole of the left end face of the plunger (11). With the cooperation of the elastic reset device, the plunger (11) is controlled by the oil control plate (13) to move leftward or rightward by rotating the adjustment bolt (12), thereby adjusting the size of the oil chamber (7) and completing the regulation of the oil injection amount.

3. The oiler for lubricating the diesel engine starting air distributor according to claim 2, characterized in that: The elastic reset device comprises a reset spring (14) and a T-shaped column (15), wherein 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 to the inner end surface 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 step surface 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 surface of the plunger (11) and abuts against the groove bottom surface of the central guide groove.

4. The oiler for lubricating the diesel engine starting air distributor according to claim 3, characterized in that: The left end surface of the oil control plate (13) is evenly distributed with no less than two guide rods (16), and the guide rods (16) are adapted to be inserted into guide holes at corresponding positions on the right end surface of the adjustment seat (9), and the radial positioning connection between the oil control plate (13) and the adjustment seat (9) is achieved by the cooperation of the guide rods (16) and the guide holes.

5. The oiler for lubricating the diesel engine starting air distributor according to claim 4, characterized in that: A sealing groove is formed on the outer wall of the convex ring of the plunger (11), and an O-type sealing ring (17) is arranged in the sealing groove and contacts and seals with the inner wall of the housing (8). An O-type sealing ring (17) is arranged in the stepped hole of the housing (8) and is located between the right step surface of the stepped hole and the tail sleeve (10) and is used to seal the plunger (11), the housing (8) and the tail seat (10). A Y-type sealing ring (18) is fixedly mounted on the left end of the plunger (11) and contacts with the hole wall of the housing (8).

6. The oiler for lubricating the diesel engine starting air distributor according to claim 5, characterized in that: A sealing ring is provided at the step position between the adjusting bolt (12) and the middle through hole of the adjusting seat (9), and a sealing ring is provided on the outer wall of the step position of the small diameter section at the right end of the adjusting seat (9) to contact the inner hole wall at the right end of the shell (8).

7. The oiler for lubricating the diesel engine starting air distributor according to claim 1, characterized in that: The one-way valve assembly comprises an oil suction stud (19) with a large head end 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) passes through the oil outlet hole on the bottom surface of the oil tank (6) and is threadedly fixed to the position of the mounting hole on the base flange (2); the steel ball (20) is located in the mounting hole; the lower hole of the mounting hole corresponds to and is connected to a T-shaped hole located on the outer wall of the housing (8) in the flow-adjustable oil injection device and connected to the oil chamber (7); a sealing ring is provided on the inner hole wall of the T-shaped hole; the oil suction stud (19) is provided with a sealing ring; 9) is provided with two upper ports located on the two side walls thereof and connected to the inside of the oil tank (6), and the lower port is located on a T-shaped oil hole (21) on the lower end surface of the oil suction stud (19), the lower end surface of the oil suction stud (19) is an arc surface adapted to the steel ball (20), and when there is no compressed air in the oil and gas passage (3), the steel ball (20) moves downward 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 passage (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).

8. The oiler for lubricating the diesel engine starting air distributor according to claim 1, characterized in that: The one-way valve group device comprises 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 sealedly connected to the lubricating oil outlet on the shell (8) of the flow-adjustable oil injection device, and 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).

9. The oiler for lubricating the diesel engine starting air distributor according to claim 8, characterized in that: The horizontal elastic one-way valve group comprises a spring (23), an oil-passing plunger (24) and a connecting plunger (25). The connecting plunger (25) is in a T-shaped columnar structure. The small diameter section of the connecting plunger (25) is threadedly connected to a threaded hole on the side wall of the base (1) and connected to the lubricating hole (5). The step surface formed by the large diameter section and the small diameter section of the connecting stud (25) abuts against the side wall of the base (1). The outer wall of the left end of the connecting plunger (25) contacts a sealing ring in a sealing groove on the wall of the smooth wall section of the threaded hole. The oil-passing plunger (24) is adapted to be installed in the inner hole of the small diameter section of the connecting plunger (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). The oil passage (22) is connected to the inner hole of the small diameter section of the connecting plug (25) through the oil passage (22). When compressed air is present in the oil-gas passage (3), the lubricating oil in the oil passage (22) causes the oil passage (24) to move to the left 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 (25) and the lubricating oil hole (5); The vertical elastic one-way valve group comprises a spring (23), an oil-through plunger (24) and an oil-through plunger (27); the small-diameter section at the upper end of the oil-through plunger (27) is adapted to the lubricating oil outlet on the housing (8), and the large-diameter section at the lower end of the oil-through plunger (27) is threadedly connected to the mounting hole on the upper end surface of the base (1), and is sealed by a sealing ring arranged on the large-diameter section of the oil-through plunger (27) and in contact with the wall of the mounting hole and the housing (8); the oil-through plunger (24) and the spring (23) sleeved on the small-diameter section at the lower end of the oil-through plunger (24) are both arranged on the base The oil passage (22) is connected to the mounting hole on the upper end surface of the base (1), and the conical section on the upper end of the oil plunger (24) extends into the central oil hole of the oil plunger (27). The oil plunger (24) is internally provided with a Y-shaped oil hole (26) with two orifices at the upper end located on the conical surface and a lower orifice located on its lower end surface. The oil passage (22) is connected to the mounting hole on the upper end surface of the base (1), and when compressed air is present in the oil-gas passage (3), the lubricating oil in the oil chamber (7) causes the oil plunger (24) to move downward and flows into the oil passage (22) through the central oil hole and the Y-shaped oil hole (26) of the oil plunger (27).

10. The oiler for lubricating a diesel engine starting air distributor according to any one of claims 1 to 9, characterized in that: The oil tank (6) comprises a box body (6-1) with an upper end opening, an upper cover (6-2) sealed and fixed to an upper port of the box 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) disposed in the box body (6-1); the upper cover (6-2) is an annular structure with both ends open and the upper end size smaller than the lower end size; a T-shaped ring at the upper end of the filter cartridge (6-4) overlaps the upper port position of the upper cover (6-2), and the inverted cone filter cartridge fixed on the T-shaped ring is located in the box body (6-1).

Images