Circulating flexible adjusting oil injection device

Abstract

The utility model discloses a circulating flexible adjusting oil injection device, and belongs to the technical field of diesel engines. The fuel injection pump mainly comprises a shell, a plurality of mounting holes are formed in the upper side of the shell, fuel injection pumps are in threaded connection with the interiors of the mounting holes, each fuel injection pump comprises an upper pump body and a lower pump body which are located on the upper side and the lower side of the corresponding mounting hole, the upper pump bodies and the lower pump bodies are fixed, and the upper ends of the upper pump bodies are sleeved with clamping rings; a plurality of clamping grooves are distributed in the outer wall of the upper end of the upper pump body in the circumferential direction, clamping blocks corresponding to the clamping grooves are arranged in the clamping ring, a plurality of fixing blocks are fixed to the upper end of the shell, a fixing plate is fixed to one side of the clamping ring, and the fixing blocks and the fixing plate are fixedly installed. According to the circulating flexible adjusting oil injection device, the effect of fixing the oil injection pump is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of diesel engines, and more specifically to a circulating flexible regulating fuel injection device. Background Art

[0002] In order to adjust the injection timing, the fuel injection pump of a diesel engine is usually threadedly connected to the diesel engine housing. The staff can adjust the position of the fuel injection pump by turning the fuel injection pump, and then adjust the time when the cam in the diesel engine pushes the fuel injection pump to achieve the effect of adjusting the injection timing.

[0003] However, the diesel engine will generate vibration when working, which can easily cause the injection pump to rotate and cause deviation in the injection timing.

[0004] Therefore, it is necessary to provide a cyclic flexible regulating fuel injection device to solve the above problems. Utility Model Content

[0005] Based on the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide a cyclic flexible regulation fuel injection device to achieve the effect of fixing the fuel injection pump.

[0006] The technical solution adopted by the present application to solve its technical problems is: a circulating flexible adjustment fuel injection device, including a shell, a plurality of mounting holes are arranged on the upper side of the shell, a fuel injection pump is threadedly connected to the inner side of the mounting hole, the fuel injection pump includes an upper pump body and a lower pump body located on the upper and lower sides of the mounting hole, the upper pump body and the lower pump body are fixed to each other, a retaining ring is sleeved on the upper end of the upper pump body, a plurality of retaining grooves are circumferentially distributed on the outer wall of the upper end of the upper pump body, a retaining block corresponding to the retaining groove is arranged inside the retaining ring, a plurality of fixing blocks are fixed to the upper end of the shell, a fixing plate is fixed to one side of the retaining ring, and the fixing block is fixedly installed with the fixing plate.

[0007] Furthermore, the fixing block is located between the two mounting holes.

[0008] Furthermore, a fixing hole is provided on the side of the fixing block, a positioning hole corresponding to the position of the fixing hole is provided on the fixing plate, a bolt is provided on one side of the fixing plate, and one end of the bolt passes through the positioning hole and is threadedly connected to the fixing hole.

[0009] Furthermore, a rotating shaft is rotatably arranged at the bottom of the shell, and the rotating shaft is suitable for rotating under external drive. A cam corresponding to the position of the mounting hole is fixed on the rotating shaft. A piston is slidably arranged inside the lower pump body, and a telescopic rod is fixed to the lower end of the piston. A first elastic member is connected between the lower end of the telescopic rod and the lower pump body.

[0010] Furthermore, the lower end of the telescopic rod passes through the lower pump body and is rotatably connected to a roller.

[0011] Furthermore, an oil suction groove is provided on the upper side of the shell, and the lower pump body passes through the oil suction groove. An oil suction hole corresponding to the position of the oil suction groove is provided on one side of the lower pump body. A pump plug is provided inside the upper pump body, and the pump plug blocks the upper end of the lower pump body. A second elastic member is provided between the upper end of the pump plug and the upper end of the inner part of the upper pump body, and an oil outlet is provided at the upper end of the upper pump body.

[0012] The beneficial effects of the utility model are:

[0013] After the fixing plate and the fixing block are fixedly installed, the clamping ring is fixed, and at the same time the clamping ring will clamp the clamping groove through the clamping block to prevent the injection pump from rotating, thereby preventing the vibration of the diesel engine from causing the injection pump to rotate accidentally during the use of the diesel engine, thereby avoiding errors in the injection timing of the injection pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 It is an overall schematic diagram of a cyclic flexible regulation fuel injection device in this application;

[0016] Figure 2 for Figure 1 Schematic diagram of the exploded view of the middle clamp ring;

[0017] In the figure:

[0018] 1. housing; 11. rotating shaft; 111. cam; 12. mounting hole; 13. oil suction groove;

[0019] 2. fuel injection pump; 21. upper pump body; 211. pump plug; 212. second elastic member; 213. slot; 214. oil outlet; 22. lower pump body; 221. piston; 222. telescopic rod; 223. roller; 224. first elastic member; 225. oil suction hole;

[0020] 3. Snap ring; 31. Clamp block; 32. Fixing block; 33. Fixing hole; 34. Fixing plate; 35. Positioning hole; 36. Bolt. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0023] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0024] like Figure 1-2 As shown, the present application provides a cyclic flexible regulation fuel injection device, including a housing 1, a rotating shaft 11 is rotatably arranged at the bottom of the housing 1, and the rotating shaft 11 is suitable for rotating under external drive. A plurality of mounting holes 12 are arranged on the upper side of the housing 1, and a fuel injection pump 2 is installed inside the mounting holes 12. A cam 111 corresponding to the position of the mounting hole 12 is fixed on the rotating shaft 11.

[0025] The fuel injection pump 2 includes an upper pump body 21 and a lower pump body 22 located at upper and lower sides of the mounting hole 12 . The upper pump body 21 and the lower pump body 22 are fixed to each other, and the upper pump body 21 is threadedly connected to the mounting hole 12 .

[0026] A piston 221 is slidably disposed inside the lower pump body 22, a telescopic rod 222 is fixed to the lower end of the piston 221, and the lower end of the telescopic rod 222 penetrates the lower pump body 22 and is rotatably connected to a roller 223. A first elastic member 224 is connected between the lower end of the telescopic rod 222 and the lower pump body 22, and in this embodiment, the first elastic member 224 is a spring.

[0027] An oil suction groove 13 is provided on the upper side of the housing 1 , and the lower pump body 22 passes through the oil suction groove 13 . An oil suction hole 225 corresponding to the position of the oil suction groove 13 is provided on one side of the lower pump body 22 .

[0028] A pump plug 211 is provided inside the upper pump body 21, and the pump plug 211 blocks the upper end of the lower pump body 22. A second elastic member 212 is provided between the upper end of the pump plug 211 and the upper end inside the upper pump body 21. In this embodiment, the second elastic member 212 is a spring.

[0029] A clamping ring 3 is sleeved on the upper end of the upper pump body 21, and a plurality of clamping grooves 213 are circumferentially distributed on the outer wall of the upper end of the upper pump body 21. A clamping block 31 corresponding to the clamping groove 213 is arranged inside the clamping ring 3. A plurality of fixing blocks 32 are fixed to the upper end of the housing 1. The fixing blocks 32 are respectively located between the two mounting holes 12. Fixing holes 33 are arranged on both sides of the fixing blocks 32. A fixing plate 34 is fixed to one side of the clamping ring 3. Positioning holes 35 corresponding to the positions of the fixing holes 33 are arranged on the fixing plate 34. Bolts 36 are arranged on one side of the fixing plate 34. One end of the bolt 36 passes through the positioning hole 35 and is threadedly connected to the fixing hole 33.

[0030] The first elastic member 224 pushes the telescopic rod 222 downward by its own elastic force, so that the roller 223 approaches the cam 111. When the rotating shaft 11 rotates, it rotates the cam 111, so that the protruding part of the cam 111 squeezes the roller 223, so that the cam 111, the telescopic rod 222 and the piston 221 continuously move up and down.

[0031] It is understandable that the oil suction groove 13 is connected to an external oil supply device (not shown), and an oil outlet 214 is provided at the upper end of the upper pump body 21 .

[0032] When the piston 221 descends, the second elastic member 212 pushes the pump plug 2111 to block the upper end of the lower pump body 22 , and negative pressure is generated inside the lower pump body 22 . When the piston 221 exposes the oil suction hole 225 , the negative pressure sucks diesel into the lower pump body 22 .

[0033] When the piston 221 rises and passes through the oil suction hole 225, positive pressure will be generated inside the lower pump body 22, pushing the pump plug 211 to overcome the elastic force of the second elastic member 212 and open the upper end of the lower pump body 22. The pump plug 211 will push the diesel to flow out from the oil outlet 214. When completed, negative pressure will be generated inside the lower pump body 22. When the piston 221 exposes the oil suction hole 225, the negative pressure will suck the diesel into the lower pump body 22.

[0034] After the bolt 36 is removed, the clamping ring 3 is moved away from the position of the clamping groove 213. The staff can rotate the upper pump body 21 to thread the upper pump body 21 with the mounting hole 12, drive the injection pump 2 to move up and down, and adjust the distance between the roller 223 and the cam 111.

[0035] When the distance between the roller 223 and the cam 111 increases, the cam 111 will push the roller 223 relatively later, thereby delaying the injection time of the injection pump 2; when the distance between the roller 223 and the cam 111 decreases, the cam 111 will push the roller 223 relatively earlier, thereby advancing the injection time of the injection pump 2.

[0036] After the distance between the roller 223 and the cam 111 is adjusted, the fixing plate 34 is first fitted to the fixing block 32, and then the snap ring 3 is put on the position of the slot 213, so that the block 31 is inserted into the slot 213, and then the bolt 36 is taken out, and one end of the bolt 36 is passed through the positioning hole 35 and threadedly connected with the fixing hole 33, and then tightened. At this time, the snap ring 3 is fixed, and the snap ring 3 will clamp the slot 213 through the block 31 to prevent the injection pump 2 from rotating, thereby preventing the vibration of the diesel engine from causing the injection pump 2 to rotate accidentally during the use of the diesel engine, thereby preventing the injection pump 2 from having errors in the injection time.

[0037] Obviously, the above-described embodiments are only a 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 should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0040] The above description is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0041] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A circulating flexible regulation oil injection device, characterized in that: The invention comprises a housing (1), wherein a plurality of mounting holes (12) are arranged on the upper side of the housing (1), wherein a fuel injection pump (2) is threadedly connected inside the mounting hole (12), wherein the fuel injection pump (2) comprises an upper pump body (21) and a lower pump body (22) located on upper and lower sides of the mounting hole (12), wherein the upper pump body (21) and the lower pump body (22) are fixed to each other, wherein a clamping ring (3) is sleeved on the upper end of the upper pump body (21), wherein a plurality of clamping grooves (213) are circumferentially distributed on the outer wall of the upper end of the upper pump body (21), wherein a clamping block (31) corresponding to the clamping groove (213) is arranged inside the clamping ring (3), wherein a plurality of fixing blocks (32) are fixed to the upper end of the housing (1), wherein a fixing plate (34) is fixed to one side of the clamping ring (3), and wherein the fixing block (32) is fixedly mounted to the fixing plate (34).

2. A cyclic flexible regulation oil injection device according to claim 1, characterized in that: The fixing block (32) is located between the two mounting holes (12).

3. A cyclic flexible regulation oil injection device according to claim 1, characterized in that: A fixing hole (33) is provided on the side of the fixing block (32), a positioning hole (35) corresponding to the position of the fixing hole (33) is provided on the fixing plate (34), a bolt (36) is provided on one side of the fixing plate (34), and one end of the bolt (36) passes through the positioning hole (35) and is threadedly connected to the fixing hole (33).

4. The cyclic flexible regulation oil injection device according to claim 1, characterized in that: A rotating shaft (11) is rotatably arranged at the bottom of the housing (1), and the rotating shaft (11) is suitable for rotating under external drive. A cam (111) corresponding to the position of the mounting hole (12) is fixed on the rotating shaft (11). A piston (221) is slidably arranged inside the lower pump body (22), and a telescopic rod (222) is fixed at the lower end of the piston (221). A first elastic member (224) is connected between the lower end of the telescopic rod (222) and the lower pump body (22).

5. A cyclic flexible regulation oil injection device according to claim 4, characterized in that: The lower end of the telescopic rod (222) passes through the lower pump body (22) and is rotatably connected to a roller (223).

6. The cyclic flexible regulation oil injection device according to claim 1, characterized in that: An oil suction groove (13) is provided on the upper side of the housing (1), the lower pump body (22) passes through the oil suction groove (13), one side of the lower pump body (22) is provided with an oil suction hole (225) corresponding to the position of the oil suction groove (13), a pump plug (211) is provided inside the upper pump body (21), the pump plug (211) blocks the upper end of the lower pump body (22), a second elastic member (212) is provided between the upper end of the pump plug (211) and the upper end of the upper pump body (21), and an oil outlet (214) is provided at the upper end of the upper pump body (21).

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