Oil return device of methanol dual-fuel engine

Abstract

The utility model belongs to the field of oil return devices, and particularly relates to an oil return device of a methanol dual-fuel engine, which comprises an oil rail, the right end of the oil rail is fixedly connected with a valve casing, the inside of the valve casing is connected with a valve body through threads, the top of the valve casing is fixedly connected with an oil return pipe, and the oil return pipe is movably connected with the valve body. The oil return pipe is communicated with the valve body, a first gear is rotationally connected into the valve shell in a sleeved mode, the right end of the first gear is meshed with a second gear, the second gear is rotationally connected with the valve shell, a locking mechanism is arranged on the valve body, and a lubricating mechanism is arranged on the locking mechanism. By designing the threaded connection between the valve body and the valve shell, the valve body can be preliminarily fixed, the valve body can be limited and locked through the insertion connection between the insertion block and the valve body, the valve body can be prevented from rotating, the valve body can be effectively prevented from loosening after the valve body and the valve shell are connected, and the connection stability of the valve body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil return device technical field, concretely is the oil return device of methanol dual fuel engine. BACKGROUND

[0002] The oil return device of methanol dual fuel engine refers to the system for recycling and reusing methanol fuel. The utility model patent with the patent authorization announcement number CN202970989U discloses a methanol oil return device of dual fuel engine and belongs to the technical field of automobiles. It solves the technical problems such as low response performance, large space occupation of the existing methanol oil return device. The methanol oil return device of dual fuel engine includes an oil rail assembly, an oil return pipe connected with the oil rail assembly and a methanol tank and an oil return valve capable of controlling the communication or blockage of the oil rail assembly and the oil return pipe. The oil return valve includes an oil inlet interface and an oil outlet interface. The oil inlet interface of the oil return valve is fixedly connected with the oil rail assembly and is in communication. The oil outlet interface of the oil return valve is fixedly connected with the oil return pipe and is in communication. The utility model has the advantages of good response performance, small space occupation, low failure rate and the like.

[0003] In the prior art, the valve body and the valve shell are installed and used in a threaded connection mode. The connection stability of the valve body and the valve shell is insufficient. When the valve body is used, if the valve body is rotated due to vibration, the position of the valve body will be deviated. At this time, the valve body will deviate from the oil return pipe, which will affect the oil return effect. Therefore, improvement is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an oil return device of methanol dual fuel engine, which solves the problem of insufficient connection stability of the valve body and the valve shell.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an oil return device of methanol dual fuel engine, comprising an oil rail, a valve shell fixedly connected to the right end of the oil rail, a valve body threadedly connected in the valve shell, an oil return pipe fixedly connected to the top of the valve shell, the oil return pipe movably connected with the valve body, the oil return pipe in communication with the valve body, a gear one rotatably sleeved in the valve shell, a gear two meshed with the right end of the gear one, the gear two rotatably connected with the valve shell, a locking mechanism arranged on the valve body, and a lubricating mechanism arranged on the locking mechanism.

[0006] Preferably, the locking mechanism comprises a rotating shaft, the rotating shaft is rotatably sleeved in the valve shell through a bearing, the rotating shaft is fixedly sleeved on the outside of the gear two, a screw rod is fixedly sleeved in the inside of the gear one, a plug is threadedly connected to the outside of the screw rod, the plug is slidably connected with the valve shell, the plug is slidably connected with the valve body, a guide block is fixedly connected to the right end of the plug, and the guide block is slidably connected with the valve shell. Through the design of the locking mechanism, the valve body can be positioned and locked.

[0007] Preferably, the top of the rotating shaft is fixedly connected with a knob, and the knob is rotationally connected with the valve shell. By designing the knob, the knob can drive the rotating shaft to rotate.

[0008] Preferably, the outer side of the screw rod is rotationally sleeved with a rotating seat through a bearing, and the rotating seat is fixedly connected with the valve shell. By designing the rotating seat, the screw rod can be rotationally supported.

[0009] Preferably, the inside of the valve shell is provided with a guide groove, and the guide groove is slidably connected with a guide block. By designing the guide groove, the guide block can slide along the guide groove.

[0010] Preferably, the lubricating mechanism comprises a sponge block, the inside of the valve shell is fixedly connected with the sponge block, the inside of the sponge block is adsorbed with lubricating oil, the sponge block is rotationally connected with the gear, the inside of the sponge block is movably sleeved with a cylinder, the cylinder is threadedly connected with the valve shell, the inside of the cylinder is provided with a through hole, the outer side of the cylinder is fixedly connected with a plurality of handles which are uniformly distributed, the inside of the cylinder is threadedly connected with a connecting block, the top of the connecting block is fixedly connected with a cover plate, and the cover plate is in contact with the cylinder. By designing the lubricating mechanism, the gear can be lubricated.

[0011] Preferably, the number of the through holes is multiple, and the multiple through holes are annularly and uniformly distributed in the inside of the cylinder. By designing the multiple through holes, the lubricating oil can be discharged through the through holes.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a valve body and the threaded connection of valve shell can realize the preliminary fixation of valve body, and the insertion of the insertion block and valve body can limit and lock valve body, prevent the rotation of valve body, effectively avoid the loosening of valve body after the connection of valve body and valve shell, and improve the connection stability of valve body.

[0014] 2、The utility model discloses the effect of the sponge block, when gear one rotates, the inside of the sponge block stores lubricating oil, can lubricate gear one, when gear one rotates, can lubricate gear two, can reduce the friction when gear engages and rotates, can reduce abrasion and improve service life, when the inside of the sponge block has less lubricating oil, the inside storage of the cylinder lubricating oil can input to the inside of the sponge block through the through hole and supplement lubricating oil. DRAWINGS

[0015] Figure 1 It is the overall structure perspective drawing of the utility model;

[0016] Figure 2 It is the local structure perspective sectional view of the utility model Figure 1 ;

[0017] Figure 3 For the utility model Figure 2 A place of the utility model is enlarged view;

[0018] Figure 4 For the utility model Figure 2 B place of the utility model is enlarged view.

[0019] In the figure: 1, oil rail; 2, valve shell; 3, valve body; 4, oil return pipe; 5, gear one; 6, gear two; 8, locking mechanism; 9, lubricating mechanism; 81, rotating shaft; 82, knob; 83, screw rod; 84, rotating seat; 85, plug block; 86, guide block; 87, guide groove; 91, sponge block; 92, barrel; 93, through hole; 94, handle; 95, connecting block; 96, cover plate. Specific implementation

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figure 1 、 Figure 2 , the oil return device of methanol dual-fuel engine, including oil rail 1, the right end of oil rail 1 is fixedly connected with valve shell 2, the inside of valve shell 2 is connected with valve body 3 by screw thread, the top of valve shell 2 is fixedly connected with oil return pipe 4, oil return pipe 4 is movably connected with valve body 3, oil return pipe 4 is communicated with valve body 3, gear one 5 is rotatably sleeved in the inside of valve shell 2, gear two 6 is engaged in the right end of gear one 5, gear two 6 is rotatably connected with valve shell 2, locking mechanism 8 is arranged on valve body 3, lubricating mechanism 9 is arranged on locking mechanism 8.

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3, the locking mechanism 8 comprises a rotating shaft 81, the inside of the valve shell 2 is rotatably connected with the rotating shaft 81 through a bearing, the top of the rotating shaft 81 is fixedly connected with a knob 82, the knob 82 is rotatably connected with the valve shell 2, the knob 82 can drive the rotating shaft 81 to rotate by designing the knob 82, the rotating shaft 81 is fixedly connected with the outside of the gear two 6, the inside of the gear one 5 is fixedly connected with a screw rod 83, the outside of the screw rod 83 is rotatably connected with a rotating seat 84 through a bearing, the rotating seat 84 is fixedly connected with the valve shell 2, the rotating seat 84 can rotatably support the screw rod 83, the outside of the screw rod 83 is rotatably connected with an insertion block 85 through a thread, the insertion block 85 is slidably connected with the valve shell 2, the insertion block 85 is slidably connected with the valve body 3, the right end of the insertion block 85 is fixedly connected with a guide block 86, the guide block 86 is slidably connected with the valve shell 2, the inside of the valve shell 2 is provided with a guide groove 87, and the inside of the guide groove 87 is slidably connected with the guide block 86. By designing the guide groove 87, the guide block 86 can slide along the guide groove 87, and by designing the locking mechanism 8, the valve body 3 can be limited and locked.

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 4 , the lubricating mechanism 9 comprises a sponge block 91, the inside of the valve shell 2 is fixedly connected with the sponge block 91, the inside of the sponge block 91 is adsorbed with lubricating oil, the sponge block 91 is rotatably connected with the gear one 5, the inside of the sponge block 91 is movably connected with a cylinder 92, the cylinder 92 is rotatably connected with the valve shell 2 through a thread, the inside of the cylinder 92 is provided with a plurality of through holes 93, the plurality of through holes 93 are annularly and evenly distributed in the inside of the cylinder 92, the plurality of through holes 93 can discharge lubricating oil by designing the plurality of through holes 93, the outside of the cylinder 92 is fixedly connected with a plurality of handles 94 which are evenly distributed, the inside of the cylinder 92 is rotatably connected with a connecting block 95, the top of the connecting block 95 is fixedly connected with a cover plate 96, the cover plate 96 is in contact with the cylinder 92, and the gear can be lubricated by designing the lubricating mechanism 9.

[0024] The specific implementation process of the utility model is as follows: when the valve body 3 is connected and used, the valve body 3 is first screwed into the inside of the valve shell 2 through the threaded connection between the valve body 3 and the valve shell 2, at this time, the valve body 3 can be preliminarily fixed, then the knob 82 is rotated, the knob 82 drives the rotating shaft 81 to rotate, the rotating shaft 81 drives the gear two 6 to rotate, the gear two 6 drives the gear one 5 to rotate, the gear one 5 drives the screw rod 83 to rotate along the rotating seat 84, so that the insertion block 85 moves in a threaded manner, the insertion block 85 drives the guide block 86 to move downward along the guide groove 87, so that the insertion block 85 is inserted into the inside of the valve body 3, at this time, the valve body 3 can be limited and locked, and the rotation of the valve body 3 can be prevented, after the valve body 3 is connected with the valve shell 2, the loosening of the valve body 3 can be effectively avoided, and the connection stability of the valve body 3 is improved.

[0025] Through the action of the sponge block 91, when the gear one 5 rotates, the inside of the sponge block 91 can store lubricating oil, so that the gear one 5 can be lubricated, and when the gear one 5 rotates, the gear two 6 can be lubricated, the friction when the gears mesh and rotate can be reduced, the wear can be reduced, and the service life can be improved, and when the inside of the sponge block 91 has less lubricating oil, the inside of the barrel body 92 stores lubricating oil which can be input to the inside of the sponge block 91 through the through hole 93 to supplement the lubricating oil, and when the handle 94 rotates, the barrel body 92 can be driven to rotate, the barrel body 92 can be rotated out of the inside of the valve housing 2, and the use is convenient.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A return oil device for a methanol dual-fuel engine, comprising an oil rail (1), characterized in that: A valve housing (2) is fixedly connected to the right end of the oil rail (1). A valve body (3) is connected to the inside of the valve housing (2) by a thread. A return oil pipe (4) is fixedly connected to the top of the valve housing (2). The return oil pipe (4) is movably connected to the valve body (3). The return oil pipe (4) communicates with the valve body (3). A gear one (5) is rotatably sleeved inside the valve housing (2). A gear two (6) meshes with the right end of the gear one (5). The gear two (6) is rotatably connected to the valve housing (2). A locking mechanism (8) is provided on the valve body (3). A lubrication mechanism (9) is provided on the locking mechanism (8).

2. The oil return device for the methanol dual-fuel engine according to claim 1, characterized in that: The locking mechanism (8) includes a rotating shaft (81). The rotating shaft (81) is rotatably sleeved inside the valve housing (2) via a bearing. The rotating shaft (81) is fixedly sleeved on the outside of the gear two (6). A screw (83) is fixedly sleeved inside the gear one (5). A plug (85) is threadedly connected to the outside of the screw (83). The plug (85) is slidably connected to the valve housing (2) and to the valve body (3). A guide block (86) is fixedly connected to the right end of the plug (85). The guide block (86) is slidably connected to the valve housing (2).

3. The oil return device for the methanol dual-fuel engine according to claim 2, characterized in that: A knob (82) is fixedly connected to the top of the rotating shaft (81), and the knob (82) is rotatably connected to the valve body (2).

4. The oil return device for the methanol dual-fuel engine according to claim 2, characterized in that: The outer side of the screw (83) is rotatably connected to a rotating seat (84) via a bearing, and the rotating seat (84) is fixedly connected to the valve body (2).

5. The oil return device for the methanol dual-fuel engine according to claim 1, characterized in that: The valve housing (2) has a guide groove (87) inside, and a guide block (86) is slidably connected inside the guide groove (87).

6. The oil return device for the methanol dual-fuel engine according to claim 1, characterized in that: The lubrication mechanism (9) includes a sponge block (91). The sponge block (91) is fixedly connected inside the valve housing (2). The sponge block (91) absorbs lubricating oil. The sponge block (91) is rotatably connected to gear 1 (5). A cylinder (92) is movably sleeved inside the sponge block (91). The cylinder (92) is connected to the valve housing (2) by a thread. A through hole (93) is opened inside the cylinder (92). A plurality of evenly distributed handles (94) are fixedly connected to the outside of the cylinder (92). A connecting block (95) is threadedly connected inside the cylinder (92). A cover plate (96) is fixedly connected to the top of the connecting block (95). The cover plate (96) is in contact with the cylinder (92).

7. The oil return device for the methanol dual-fuel engine according to claim 6, characterized in that: The number of through holes (93) is multiple, and the multiple through holes (93) are annular and evenly distributed inside the cylinder (92).

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