Fuel supply regulating mechanism of fuel injection pump and diesel engine

Abstract

The present invention provides a fuel supply regulating mechanism for a fuel injection pump and a diesel engine. The fuel supply regulating mechanism includes: a plurality of regulating components, which are used to be arranged in one-to-one correspondence with a plurality of fuel injection pumps, and each regulating component is used to regulate the fuel supply of the corresponding fuel injection pump; a driving shaft, each regulating component is detachably connected to the driving shaft, and the driving shaft is rotatably arranged to drive the plurality of regulating components to move so as to regulate the fuel supply. The fuel supply regulating mechanism of the present invention solves the problem in the prior art that if the driving mechanism of a certain cylinder of a diesel engine is stuck, the driving mechanism needs to be disassembled as a whole.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel engines, and in particular, to a fuel supply regulating mechanism for a fuel injection pump and a diesel engine. Background Art

[0002] At present, the mechanical fuel injection pump rack drive mechanism of high-power diesel engines is integral. If the drive mechanism of a certain cylinder gets stuck, the entire drive mechanism needs to be disassembled. At this time, the diesel engine needs to be shut down to complete the overhaul of the entire drive mechanism. Once the diesel engine used for offshore operations shuts down, it will affect the safety of the ship and personnel. Summary of the Invention

[0003] The main object of the present invention is to provide a fuel supply regulating mechanism for a fuel injection pump and a diesel engine to solve the problem that the entire drive mechanism needs to be disassembled if the drive mechanism of a certain cylinder of the existing diesel engine gets stuck.

[0004] To achieve the above object, according to one aspect of the present invention, there is provided a fuel supply regulating mechanism for a fuel injection pump, including: a plurality of regulating components, which are used to be arranged in one-to-one correspondence with a plurality of fuel injection pumps, and each regulating component is used to regulate the fuel supply of the corresponding fuel injection pump; a drive shaft, each regulating component is detachably connected to the drive shaft, and the drive shaft is rotatably arranged to drive the plurality of regulating components to move to regulate the fuel supply.

[0005] Further, the regulating component includes: a first regulating part, which is detachably connected to the drive shaft; a second regulating part, the first end of the second regulating part is hinged to the first regulating part, and the second end of the second regulating part is used to be connected to the rack of the fuel injection pump; when the drive shaft rotates, the first regulating part is driven to rotate, and the second regulating part and the rack make a reciprocating linear motion.

[0006] Further, the first regulating part further includes: a first connecting part, including a first supporting part and a first connecting rod, the first connecting rod is connected to the first supporting part, and the first connecting rod is inserted into the drive shaft; the drive shaft is placed on the first supporting part; a fastening part, which is arranged on the opposite sides of the drive shaft with the first supporting part, and the fastening part is threadedly connected to the first connecting rod, so that by rotating the fastening part, the fastening part abuts against the drive shaft, so that the drive shaft is fixed between the fastening part and the first supporting part.

[0007] Further, the first supporting part has a recessed part, the shape of the recessed part is adapted to the shape of the drive shaft, and the outer peripheral surface of the drive shaft is in contact with the inner wall of the recessed part; and / or, the first regulating part further includes a pressing plate, the pressing plate is sleeved on the first connecting rod, the pressing plate has a pressing surface pressing on the drive shaft, and the pressing surface is in contact with the outer peripheral surface of the drive shaft; the fastening part is located on the side of the pressing plate away from the drive shaft, so that by the fastening part abutting against the pressing plate, the drive shaft is fixed between the first supporting part and the pressing plate.

[0008] Further, the first adjusting member further includes: a first connecting member including a first positioning rod; a second connecting member including a second supporting portion and a second connecting rod, the second supporting portion having a first positioning groove, and the first positioning rod being rotatably disposed in the first positioning groove; the second connecting rod being fixedly connected to the second supporting portion; and an elastic member, a first end of the elastic member being connected to the first positioning rod, and a second end of the elastic member being connected to the second connecting rod.

[0009] Further, the elastic member includes an elastic member body, a first hook and a second hook connected to the elastic member body, the first hook being hooked on the first positioning rod, and the second hook being hooked on the second connecting rod.

[0010] Further, the first connecting member further includes a second positioning rod; the second supporting portion has a second positioning groove located on a side of the first positioning groove away from the rack, and the second positioning rod is rotatably disposed in the second positioning groove.

[0011] Further, the second adjusting member includes: a first connecting portion hinged to the first adjusting member; a second connecting portion for being fixedly connected to the rack, the second connecting portion and the first connecting portion being arranged in sequence along a first preset direction; and an adjusting member, a first end of the adjusting member being connected to the first connecting portion, a second end of the adjusting member being connected to the second connecting portion, and the adjusting member being telescopically disposed relative to the first connecting portion and / or the second connecting portion to adjust a distance between the second connecting portion and the first connecting portion in the first preset direction.

[0012] Further, the adjusting member includes a threaded rod, a first nut and a second nut, the threaded rod having a first threaded rod section and a second threaded rod section, the first threaded rod section being threadedly connected to the first connecting portion, the first nut being sleeved on the first threaded rod section to make the first nut abut against the first connecting portion by rotating the first nut so that the first threaded rod section is relatively fixed to the first connecting portion; the second threaded rod section being threadedly connected to the second connecting portion, the second nut being sleeved on the second threaded rod section to make the second nut abut against the second connecting portion by rotating the second nut so that the second threaded rod section is relatively fixed to the second connecting portion.

[0013] According to another aspect of the present invention, a diesel engine is provided, including a plurality of fuel injection pumps, wherein, the fuel supply amount adjusting mechanism as described above is included, and a plurality of adjusting components of the fuel supply amount adjusting mechanism are arranged in one-to-one correspondence with the plurality of fuel injection pumps, and each adjusting component is used to adjust the fuel supply amount of the corresponding fuel injection pump.

[0014] The fuel supply regulating mechanism of the fuel injection pump of the present invention includes a driving shaft and a plurality of regulating components. The plurality of regulating components are used to be arranged in one-to-one correspondence with a plurality of fuel injection pumps, and each regulating component is used to regulate the fuel supply of the corresponding fuel injection pump; the driving shaft is rotatably arranged to drive the plurality of regulating components to move to regulate the fuel supply; each regulating component of the fuel supply regulating mechanism is detachably connected to the driving shaft. When one regulating component or the corresponding fuel injection pump fails, only this regulating component needs to be separated from the driving shaft to repair this regulating component or the corresponding fuel injection pump, and the driving shaft can continue to drive the remaining regulating components to operate. It can be seen that this fuel supply regulating mechanism realizes single-cylinder disassembly, the regulating components of other cylinders are not affected, and the normal operation of the diesel engine can be ensured during the disassembly process, solving the problem that the driving mechanism of the diesel engine needs to be disassembled as a whole if the driving mechanism of a certain cylinder is stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0016] Figure 1 shows a schematic diagram of an embodiment of the fuel supply regulating mechanism according to the present invention;

[0017] Figure 2 shows a schematic diagram of the regulating component of the fuel supply regulating mechanism according to the present invention;

[0018] Figure 3 shows a schematic diagram of the regulating component when the diesel engine according to the present invention is at 0 load;

[0019] Figure 4 shows a schematic diagram of the regulating component when the diesel engine according to the present invention is at 50% load;

[0020] Figure 5 shows a schematic diagram of the regulating component when the diesel engine according to the present invention is at 100% load;

[0021] Figure 6 shows a schematic diagram of the regulating component when the diesel engine according to the present invention is at 100% load and in an emergency stop state.

[0022] Among them, the above-mentioned drawings include the following reference numerals:

[0023] 10. Adjusting assembly; 11. First adjusting member; 111. First connecting member; 112. First supporting portion; 113. First connecting rod; 114. Fastening member; 115. Concave portion; 116. Pressing plate; 1171. First positioning rod; 1172. Second positioning rod; 118. Second connecting member; 1181. Second supporting portion; 1182. Second connecting rod; 1183. First positioning groove; 1184. Second positioning groove; 1185. First supporting plate; 1186. Second supporting plate; 1187. Support rod; 119. Elastic member; 1191. Elastic member body; 1192. First hook; 1193. Second hook; 12. Second adjusting member; 121. First connecting portion; 122. Second connecting portion; 123. Adjusting member; 124. Threaded rod; 125. First nut; 126. Second nut; 127. First threaded rod section; 128. Second threaded rod section;

[0024] 20. Fuel injection pump; 21. Rack;

[0025] 30. Drive shaft;

[0026] 40. Bracket. Detailed implementation manners

[0027] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be pointed out that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0029] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners 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 "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] The present invention provides a fuel supply amount adjusting mechanism for a fuel injection pump. Please refer to Figures 1 to 6 , the fuel supply amount adjusting mechanism includes: a plurality of adjusting assemblies 10, the plurality of adjusting assemblies 10 are used to be arranged in one-to-one correspondence with a plurality of fuel injection pumps 20, and each adjusting assembly 10 is used to adjust the fuel supply amount of the corresponding fuel injection pump 20; a drive shaft 30, each adjusting assembly 10 is detachably connected to the drive shaft 30, and the drive shaft 30 is rotatably arranged to drive the plurality of adjusting assemblies 10 to move to adjust the fuel supply amount.

[0031] The fuel supply regulating mechanism of the fuel injection pump of the present invention includes a drive shaft 30 and a plurality of regulating components 10. The plurality of regulating components 10 are used to be arranged in one-to-one correspondence with a plurality of fuel injection pumps 20, and each regulating component 10 is used to regulate the fuel supply of the corresponding fuel injection pump 20; the drive shaft 30 is rotatably arranged to drive the plurality of regulating components 10 to move to regulate the fuel supply; each regulating component 10 of the fuel supply regulating mechanism is detachably connected to the drive shaft 30. When a regulating component 10 or the corresponding fuel injection pump 20 fails, only this regulating component 10 needs to be separated from the drive shaft 30 to repair this regulating component 10 or the corresponding fuel injection pump 20, and the drive shaft 30 can continue to drive the remaining regulating components 10 to operate. It can be seen that this fuel supply regulating mechanism realizes single-cylinder disassembly, the regulating components of other cylinders are not affected, and the normal operation of the diesel engine can be guaranteed during the disassembly process, solving the problem that the drive mechanism of the diesel engine needs to be disassembled as a whole if the drive mechanism of a certain cylinder jams.

[0032] In this embodiment, the regulating component 10 includes: a first regulating part 11, which is detachably connected to the drive shaft 30; a second regulating part 12, the first end of the second regulating part 12 is hinged to the first regulating part 11, and the second end of the second regulating part 12 is used to be connected to the rack 21 of the fuel injection pump 20; when the drive shaft 30 rotates, the first regulating part 11 is rotated, and the second regulating part 12 and the rack 21 make a reciprocating linear motion.

[0033] During specific implementation, the reciprocating linear motion of the rack 21 is driven by the regulating component 10 to change the fuel supply of the fuel injection pump 20, so as to realize the fuel supply of the diesel engine under different loads.

[0034] In this embodiment, the first regulating part 11 further includes: a first connecting part 111, which includes a first supporting part 112 and a first connecting rod 113. The first connecting rod 113 is connected to the first supporting part 112, and the first connecting rod 113 is inserted on the drive shaft 30; the drive shaft 30 is placed on the first supporting part 112; a fastening part 114, which is arranged on the opposite sides of the drive shaft 30 from the first supporting part 112, and the fastening part 114 is threadedly connected to the first connecting rod 113, so that by rotating the fastening part 114, the fastening part 114 abuts against the drive shaft 30, so that the drive shaft 30 is fixed between the fastening part 114 and the first supporting part 112. Such a setting realizes the detachable connection between the regulating component 10 and the drive shaft 30.

[0035] In this embodiment, the first support portion 112 has a recessed portion 115, the shape of the recessed portion 115 is adapted to the shape of the drive shaft 30, and the outer peripheral surface of the drive shaft 30 is in contact with the inner wall of the recessed portion 115; and / or, the first adjusting member 11 further includes a pressing plate 116, the pressing plate 116 is sleeved on the first connecting rod 113, the pressing plate 116 has a pressing surface pressing on the drive shaft 30, and the pressing surface is in contact with the outer peripheral surface of the drive shaft 30; the fastener 114 is located on the side of the pressing plate 116 away from the drive shaft 30, so as to press on the pressing plate 116 through the fastener 114, and fix the drive shaft 30 between the first support portion 112 and the pressing plate 116. Such a setting fixes the adjusting assembly 10 and the drive shaft 30, ensuring the reliability of their connection.

[0036] In this embodiment, the first adjusting member 11 further includes: a first connecting member 111, including a first positioning rod 1171; a second connecting member 118, including a second support portion 1181 and a second connecting rod 1182, the second support portion 1181 has a first positioning groove 1183, and the first positioning rod 1171 is rotatably arranged in the first positioning groove 1183; the second connecting rod 1182 is fixedly connected to the second support portion 1181; an elastic member 119, the first end of the elastic member 119 is connected to the first positioning rod 1171, and the second end of the elastic member 119 is connected to the second connecting rod 1182.

[0037] During specific implementation, due to the elastic buffering effect of the elastic member 119, when the diesel engine stops quickly, the impact on the adjusting assembly 10 caused by the large-scale movement of the rack 21 is avoided.

[0038] Optionally, the elastic member 119 is a tension spring.

[0039] In this embodiment, the elastic member 119 includes an elastic member body 1191, a first hook 1192 and a second hook 1193 connected to the elastic member body 1191. The first hook 1192 is hung on the first positioning rod 1171, and the second hook 1193 is hung on the second connecting rod 1182. Such a setting ensures the reliability of the connection between the elastic member 119 and the first positioning rod 1171 and the second connecting rod 1182.

[0040] In this embodiment, the first connecting member 111 further includes a second positioning rod 1172; the second support portion 1181 has a second positioning groove 1184, the second positioning groove 1184 is located on the side of the first positioning groove 1183 away from the rack 21, and the second positioning rod 1172 is rotatably arranged in the second positioning groove 1184. Such a setting ensures the reliability of the connection between the first support portion and the second support portion, and the limiting is reliable.

[0041] Optionally, both the first positioning rod 1171 and the second positioning rod 1172 are cylindrical pins.

[0042] In specific implementation, as Figure 6 shown, the first positioning rod 1171 is rotatably arranged in the first positioning groove 1183, so that the first connecting member 111 rotates relative to the second connecting member 118 along the first rotation direction; the second positioning rod 1172 is rotatably arranged in the second positioning groove 1184, so that the first connecting member 111 rotates relative to the second connecting member 118 along the second rotation direction, wherein the first rotation direction and the second rotation direction are opposite. When the rack 21 of a certain cylinder fuel injection pump is stuck, the first connecting member 111 reciprocally rotates around the first positioning rod 1171 and the second positioning rod 1172. In this way, the drive shaft 30 can still rotate, adjust the normal fuel supply of other cylinders, and maintain the stable operation of the diesel engine at a certain power. When the governor acts quickly, the first connecting member 111 rotates around the second positioning rod 1172. When the compressed air pushes the rack 21 of the fuel injection pump to act quickly, the first connecting member 111 rotates around the first positioning rod 1171, solving the problem of out-of-sync actions in two emergency shutdown situations of the governor and the compressed air pushing the rack of the fuel injection pump.

[0043] In this embodiment, the second adjusting member 12 includes: a first connecting portion 121, hinged to the first adjusting member 11; a second connecting portion 122, used for fixedly connecting with the rack 21, and the second connecting portion 122 and the first connecting portion 121 are arranged in sequence along the first preset direction; an adjusting member 123, the first end of the adjusting member 123 is connected to the first connecting portion 121, the second end of the adjusting member 123 is connected to the second connecting portion 122, and the adjusting member 123 is telescopically arranged relative to the first connecting portion 121 and / or the second connecting portion 122 to adjust the distance between the second connecting portion 122 and the first connecting portion 121 in the first preset direction. Such a setting facilitates the connection between the adjusting assembly 10 and the rack. When there is a position error between the two, the connection between the two can be ensured by adjusting the adjusting member 123. And without completely disassembling the adjusting assembly 10 and the rack, the distance between the second connecting portion 122 and the first connecting portion 121 in the first preset direction can be ensured to be adjusted by adjusting the adjusting member 123, which is convenient for the operator to operate.

[0044] In this embodiment, the adjusting member 123 includes a threaded rod 124, a first nut 125, and a second nut 126. The threaded rod 124 has a first threaded rod section 127 and a second threaded rod section 128. The first threaded rod section 127 is threadedly connected to the first connecting portion 121. The first nut 125 is sleeved on the first threaded rod section 127. By rotating the first nut 125, the first nut 125 is abutted against the first connecting portion 121, so that the first threaded rod section 127 is relatively fixed to the first connecting portion 121. The second threaded rod section 128 is threadedly connected to the second connecting portion 122. The second nut 126 is sleeved on the second threaded rod section 128. By rotating the second nut 126, the second nut 126 is abutted against the second connecting portion 122, so that the second threaded rod section 128 is relatively fixed to the second connecting portion 122. With such a setting, it is not necessary to completely disassemble the adjusting assembly 10 and the rack. Loosen the first nut and the second nut, and then adjust the distance between the second connecting portion 122 and the first connecting portion 121 in the first preset direction by rotating the threaded rod 124, so as to ensure the connection between the adjusting assembly 10 and the rack, which is convenient for the operator to operate.

[0045] During specific implementation, the threaded rod 124 (with left-handed threads at one end and right-handed threads at the other end) can be rotated to adjust the fuel supply per cylinder of a single cylinder without stopping the diesel engine, so that the cylinders of the diesel engine work in a consistent manner.

[0046] Optionally, the first connecting portion 121 is a spherical plain bearing.

[0047] In this embodiment, the fuel supply adjusting mechanism further includes a bracket 40. The drive shaft 30 is rotatably arranged on the bracket 40. The bracket 40 plays a role in supporting the drive shaft 30, and the drive shaft 30 is in clearance fit with the bracket 40.

[0048] In this embodiment, the second supporting portion 1181 includes a first support plate 1185, a second support plate 1186, and at least two support rods 1187. The first support plate 1185 and the second support plate 1186 are arranged at intervals. The first end of each support rod 1187 is connected to the first support plate 1185, and the second end of each support rod 1187 is connected to the second support plate 1186. Among them, the first end of the second connecting rod 1182 is connected to the first support plate 1185, and the second end of the second connecting rod 1182 is connected to the second support plate 1186. The elastic member 119 is located between the first support plate 1185 and the second support plate 1186. With such a setting, the spatial layout of the first adjusting component is more reasonable.

[0049] Specifically, first positioning grooves 1183 and second positioning grooves 1184 are provided on both the first support plate 1185 and the second support plate 1186. With such a setting, it is ensured that the first connecting member 111 is stably arranged on the second supporting portion 1181.

[0050] In this embodiment, the fuel supply amount regulating mechanism further includes a governor, which is drivingly connected to the driving shaft 30 to rotate the driving shaft 30.

[0051] During specific implementation, when the diesel engine is operating normally, the driving shaft 30 rotates, and the first connecting member 111 and the second connecting member 118 rotate around the second positioning rod 1172 as the axis. When the load increases and the fuel supply amount increases, there is no relative movement between the first connecting member 111 and the second connecting member 118. When the load decreases and the fuel supply amount decreases, the two move relative to each other in the opposite direction.

[0052] During specific implementation, when the diesel engine encounters an emergency failure and needs to stop quickly, external hydraulic oil enters the fuel injection pump and acts on the rack. The rack is quickly pushed out, and the first connecting member 111 and the second connecting member 118 rotate around the first positioning rod 1171 as the axis. The elastic member 119 plays an elastic buffering role, avoiding the impact on the entire regulating assembly 10 caused by the rapid pushing of the rack. After the rack is pushed out, the fuel supply is cut off, and the diesel engine stops quickly, with a reaction speed earlier than the control stop of the governor. If the elastic member 119 fails in a certain cylinder, the first connecting rod 113 on the driving shaft can be disassembled, and the regulating assembly 10 of a certain cylinder can be disassembled without affecting the operation of other cylinders.

[0053] During specific implementation, when the diesel engine is at 0 load, the position of the regulating assembly 10 is as Figure 3 shown; when the diesel engine is at 50% load, the position of the regulating assembly 10 is as Figure 4 shown; when the diesel engine is at 100% load of the mechanism, the position of the regulating assembly 10 is as Figure 5 shown; when the diesel engine is at 100% load of the mechanism and in an emergency stop state, the position of the regulating assembly 10 is as Figure 6 shown.

[0054] The present invention also provides a diesel engine, including a plurality of fuel injection pumps 20. Among them, the fuel supply amount regulating mechanism in the above embodiment is included. The plurality of regulating assemblies 10 of the fuel supply amount regulating mechanism are arranged in one-to-one correspondence with the plurality of fuel injection pumps 20, and each regulating assembly 10 is used to regulate the fuel supply amount of the corresponding fuel injection pump 20.

[0055] This application can achieve single-cylinder disassembly. The operation of the regulating assemblies 10 of other cylinders is not affected, and the normal operation of the diesel engine can be ensured during the disassembly process. Specifically, the plurality of regulating assemblies 10 can be separately installed and disassembled. After disassembling the regulating assembly 10 of a certain cylinder, other cylinders can operate normally, avoiding the risks brought by the shutdown of the diesel engine. Due to the elastic buffering effect of the elastic member, when the diesel engine stops quickly, the impact on the regulating assembly 10 caused by the large-scale movement of the rack is avoided.

[0056] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0057] The fuel supply adjustment mechanism of the fuel injection pump of the present invention includes a drive shaft 30 and a plurality of adjustment components 10. The plurality of adjustment components 10 are arranged in one-to-one correspondence with a plurality of fuel injection pumps 20, and each adjustment component 10 is used to adjust the fuel supply of the corresponding fuel injection pump 20. The drive shaft 30 is rotatably arranged to drive the plurality of adjustment components 10 to move to adjust the fuel supply. Each adjustment component 10 of the fuel supply adjustment mechanism is detachably connected to the drive shaft 30. When one adjustment component 10 or the corresponding fuel injection pump 20 fails, only this adjustment component 10 needs to be separated from the drive shaft 30 to repair this adjustment component 10 or the corresponding fuel injection pump 20, and the drive shaft 30 can continue to drive the remaining adjustment components 10 to operate. It can be seen that this fuel supply adjustment mechanism realizes single-cylinder disassembly, the adjustment components of other cylinders are not affected, and the normal operation of the diesel engine can be ensured during the disassembly process, solving the problem that the drive mechanism of the diesel engine needs to be disassembled as a whole if the drive mechanism of a certain cylinder jams.

[0058] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application described here can be implemented in an order different from those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0059] For the sake of convenience of description, spatial relative terms such as "above...", "above...", "on the upper surface of...", "above" etc. can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "beneath other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used here.

[0060] The above are only the preferred embodiments of the present invention and are 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 within the protection scope of the present invention.

Claims

1. An oil supply regulating mechanism for a fuel injection pump, characterized in that, Comprising: A plurality of adjusting components (10), the plurality of adjusting components (10) are used to be arranged in one-to-one correspondence with a plurality of fuel injection pumps (20), and each of the adjusting components (10) is used to adjust the fuel supply amount of the corresponding fuel injection pump (20); A drive shaft (30), each of the adjusting components (10) is detachably connected to the drive shaft (30), and the drive shaft (30) is rotatably arranged to drive the plurality of adjusting components (10) to move to adjust the fuel supply amount; The adjusting component (10) includes: A first adjusting member (11), detachably connected to the drive shaft (30); A second adjusting member (12), a first end of the second adjusting member (12) is hinged to the first adjusting member (11), and a second end of the second adjusting member (12) is used to be connected to a rack (21) of the fuel injection pump (20); When the drive shaft (30) rotates, the first adjusting member (11) is rotated, and the second adjusting member (12) and the rack (21) perform reciprocating linear motion; The first adjusting member (11) includes: A first connecting member (111), including a first supporting portion (112), a first connecting rod (113) and a first positioning rod (1171), the first connecting rod (113) is connected to the first supporting portion (112), and the first connecting rod (113) is inserted on the drive shaft (30); the drive shaft (30) is placed on the first supporting portion (112); A fastener (114), arranged on opposite sides of the drive shaft (30) with the first supporting portion (112), the fastener (114) is threadedly connected to the first connecting rod (113), so that by rotating the fastener (114), the fastener (114) abuts against the drive shaft (30), so that the drive shaft (30) is fixed between the fastener (114) and the first supporting portion (112); A second connecting member (118), including a second supporting portion (1181) and a second connecting rod (1182), the second supporting portion (1181) has a first positioning groove (1183), and the first positioning rod (1171) is rotatably arranged in the first positioning groove (1183); the second connecting rod (1182) is fixedly connected to the second supporting portion (1181); An elastic member (119), a first end of the elastic member (119) is connected to the first positioning rod (1171), and a second end of the elastic member (119) is connected to the second connecting rod (1182); The second adjusting member (12) includes: A first connecting portion (121), hinged to the first adjusting member (11); A second connecting portion (122), used to be fixedly connected to the rack (21), and the second connecting portion (122) and the first connecting portion (121) are arranged in sequence along a first preset direction; Adjusting member (123), a first end of the adjusting member (123) is connected to the first connecting portion (121), a second end of the adjusting member (123) is connected to the second connecting portion (122), and the adjusting member (123) is disposed to be telescopically relative to the first connecting portion (121) and / or the second connecting portion (122) to adjust a spacing between the second connecting portion (122) and the first connecting portion (121) in the first preset direction.

2. The oil supply regulating mechanism for a fuel injection pump according to claim 1, characterized in that, The first support portion (112) has a recessed portion (115), a shape of the recessed portion (115) is adapted to a shape of the drive shaft (30), and an outer peripheral surface of the drive shaft (30) is in contact with an inner wall of the recessed portion (115); and / or, The first adjusting member (11) further includes a pressing plate (116), the pressing plate (116) is sleeved on the first connecting rod (113), the pressing plate (116) has a pressing surface pressing on the drive shaft (30), and the pressing surface is in contact with the outer peripheral surface of the drive shaft (30); the fastener (114) is located on a side of the pressing plate (116) away from the drive shaft (30) to press on the pressing plate (116) through the fastener (114) to fix the drive shaft (30) between the first support portion (112) and the pressing plate (116).

3. The oil supply regulating mechanism for a fuel injection pump according to claim 1, characterized in that, The elastic member (119) includes an elastic member body (1191) and a first hook (1192) and a second hook (1193) connected to the elastic member body (1191), the first hook (1192) is hooked on the first positioning rod (1171), and the second hook (1193) is hooked on the second connecting rod (1182).

4. The oil supply regulating mechanism for a fuel injection pump according to claim 1, characterized in that, The first connecting member (111) further includes a second positioning rod (1172); The second support portion (1181) has a second positioning groove (1184), the second positioning groove (1184) is located on a side of the first positioning groove (1183) away from the rack (21), and the second positioning rod (1172) is rotatably disposed in the second positioning groove (1184).

5. The oil supply regulating mechanism for a fuel injection pump according to claim 1, characterized in that, The adjusting member (123) includes a threaded rod (124), a first nut (125) and a second nut (126), the threaded rod (124) has a first threaded rod section (127) and a second threaded rod section (128), the first threaded rod section (127) is threadedly connected to the first connecting portion (121), the first nut (125) is sleeved on the first threaded rod section (127) to make the first nut (125) press on the first connecting portion (121) by rotating the first nut (125) so that the first threaded rod section (127) is relatively fixed to the first connecting portion (121); The second threaded rod segment (128) is threadedly connected to the second connecting portion (122), and the second nut (126) is sleeved on the second threaded rod segment (128) so that by rotating the second nut (126), the second nut (126) abuts against the second connecting portion (122), thereby relatively fixing the second threaded rod segment (128) and the second connecting portion (122).

6. A diesel engine, comprising a plurality of fuel injection pumps (20), characterized in that, Comprising the fuel supply amount adjusting mechanism according to any one of claims 1 to 5, a plurality of adjusting components (10) of the fuel supply amount adjusting mechanism are provided in one-to-one correspondence with a plurality of the fuel injection pumps (20), and each of the adjusting components (10) is used to adjust the fuel supply amount of the corresponding fuel injection pump (20).

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