Comprehensive dismounting and mounting platform for joint regulator and fuel injection pump

Abstract

The utility model provides a comprehensive dismounting and mounting platform for a combined regulator and a fuel injection pump, which relates to the field of maintenance equipment for internal combustion locomotive parts and comprises a support platform, and a combined regulator maintenance assembly and a fuel injection pump maintenance assembly are respectively mounted at two ends of the support platform. The combined regulator maintenance assembly comprises a servo motor pressing mechanism and a spring gland pressing mechanism, a motor clamping mechanism fixedly arranged on the supporting platform is arranged below the servo motor pressing mechanism in a matched mode, and the fuel injection pump maintenance assembly comprises a fuel injection pump fixing assembly and a plunger and barrel assembly pressing mechanism. According to the device, potential safety hazards caused by sudden jumping-out of accessories due to the elastic force of the spring in the maintenance and disassembly process of the combined regulator and the fuel injection pump can be remarkably reduced, the personal safety of workers is greatly protected, meanwhile, fixing operation of the two core components is convenient and fast, one person can complete fixing operation, intervention of multiple persons is not needed, and the working efficiency is improved. And the working efficiency of overhauling and dismounting is obviously improved, and the operation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of maintenance equipment for parts of diesel locomotives, and more specifically, to a combined governor and fuel injection pump comprehensive disassembly and assembly platform. Background Art

[0002] The diesel engine of a diesel locomotive, like the heart of a human body, provides continuous power for the entire locomotive. Among them, the combined governor on the diesel engine plays a crucial role. It is an indispensable part of the control system of a diesel locomotive. The main responsibility of the combined governor is to accurately control the speed and power of the diesel engine, ensuring that the diesel engine can maintain the best state under various working conditions and provide stable and efficient power output for the locomotive.

[0003] The fuel injection pump, as the core component of the fuel system of a diesel locomotive, is of self-evident importance. Its main task is to accurately deliver a certain amount of fuel to the fuel injector at a predetermined moment, and then the fuel injector sprays the fuel into the cylinder to provide the required fuel for the combustion of the diesel engine.

[0004] During the daily maintenance process of the locomotive, both the combined governor and the fuel injection pump are key inspection objects. When the locomotive fails to start or stop normally, has abnormal speed increase or decrease, unstable power regulation, etc., it is usually necessary to disassemble the combined governor for detailed inspection and repair. Similarly, when problems such as rack jamming and spring breakage occur in the fuel injection pump, it also needs to be disassembled and repaired.

[0005] During the auxiliary maintenance process of the locomotive, the combined governor and the fuel injection pump are even more key points of maintenance. Sometimes both of these components need to be disassembled from the locomotive for disassembly, inspection, maintenance, repair and experiments. However, both of these components contain spring accessories with relatively large elastic forces. Therefore, during the disassembly and maintenance process, these springs may cause other driven accessories to suddenly pop out, posing certain safety hazards. And during the assembly process, it is necessary to manually press these accessories connected to the springs and then fix them with nuts. This process not only requires the cooperation of multiple people, but also the process of aligning the nuts is rather inconvenient.

[0006] At present, the operation efficiency of the tools used for the maintenance of these two components is relatively low, the operation is rather laborious, and still requires the collaborative operation of multiple people. In order to improve the maintenance efficiency, reduce the operation difficulty, and ensure the operation safety at the same time, it is necessary to develop more advanced maintenance tools and methods to meet the needs of modern locomotive maintenance. Summary of the Utility Model

[0007] The purpose of the utility model is to solve the problems raised in the above background art, and then propose a combined governor and fuel injection pump comprehensive disassembly and assembly platform.

[0008] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0009] A combined regulator and fuel injection pump comprehensive disassembly and assembly platform, including a support platform, with a combined regulator maintenance assembly and a fuel injection pump maintenance assembly installed at both ends of the support platform respectively. The combined regulator maintenance assembly includes a servo motor pressing mechanism and a spring gland pressing mechanism. Below the servo motor pressing mechanism, there is a motor clamping mechanism fixedly arranged on the support platform. The fuel injection pump maintenance assembly includes a fuel injection pump fixing component and a plunger coupling pressing mechanism.

[0010] This device can significantly reduce the safety hazards caused by the sudden ejection of accessories due to the elastic force of the spring during the maintenance and disassembly of the combined regulator and the fuel injection pump, greatly protecting the personal safety of the staff. At the same time, the fixing operation of these two core components is convenient, and one person can complete it without the need for multiple people to intervene. The operation efficiency of maintenance and disassembly is significantly improved, and the operation difficulty is reduced.

[0011] Further, the servo motor pressing mechanism includes a column, a connecting plate, a threaded sleeve, and a first screw rod. The column is installed on the support platform, and the upper end of the column is fixedly connected to the threaded sleeve through the connecting plate. The threaded sleeve is provided with a first threaded through hole, and the first screw rod passes through the first threaded through hole and is in threaded cooperation with the threaded sleeve.

[0012] Further, the spring gland pressing mechanism includes a fixing plate, a T-shaped support plate, a sliding plate, a second screw rod, and a pressing disc. The fixing plates are symmetrically arranged on the support platform, and each of the two fixing plates is provided with a slot with an open upper end. The T-shaped support plates are inserted into the slots. Symmetrically arranged on the two T-shaped support plates are sliding grooves that are slidably matched with the sliding plate, and the sliding plate is arranged parallel to the support platform. The sliding plate is provided with a second threaded through hole, and the second screw rod passes through the second threaded through hole and its lower end is connected to the pressing disc.

[0013] Further, the fuel injection pump fixing component includes a number of fixing bolts and mounting through holes. The support platform is provided with mounting through holes for placing the fuel injection pump fixing seat. A number of threaded holes are circumferentially distributed around the mounting through holes, and the threaded holes correspond one-to-one with the mounting holes on the fuel injection pump fixing seat, and the fuel injection pump is fixed on the support platform through the fixing bolts.

[0014] Further, a long strip-shaped through hole with an open end is provided on the support platform. Above the long strip-shaped through hole, a plunger coupling pressing mechanism is installed. The plunger coupling pressing mechanism includes a support frame and a third screw rod. The support frame is fixedly connected to the support platform. The support frame is provided with a third threaded through hole, and the third screw rod passes through the third threaded through hole and is in threaded cooperation with the support frame.

[0015] Further, a motor clamping mechanism fixed on the support platform is provided below the first screw rod. The motor clamping mechanism includes a mounting disc, a clamping plate, and a first positioning block. A first through hole is provided on the support platform and the mounting disc is installed thereon. A second through hole is provided at the center of the mounting disc. The first through hole and the second through hole are of the same size and coaxial. Symmetrically distributed fastening bolts are installed on the mounting disc. Third through holes and fourth through holes are respectively provided on the clamping plate and the first positioning block. One of the fastening bolts passes through the third through hole and is fixedly connected to the mounting disc through a nut, and the other fastening bolt passes through the fourth through hole and is fixedly connected to the mounting disc through a nut.

[0016] Further, symmetrically distributed protrusions are provided on the pressing disc.

[0017] Further, second positioning blocks are further included, which are located on the front side of the fixing plate and symmetrically distributed on the support platform.

[0018] Further, the upper ends of the first screw rod, the second screw rod, and the third screw rod are all connected to the handle.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. The overhaul assembly of the combined governor of the present utility model includes a servo motor pressing mechanism and a spring gland pressing mechanism, so that when disassembling the combined governor, the springs at different parts thereof can be pressed to prevent the components connected to the springs from suddenly popping out during the disassembly process, avoiding safety accidents.

[0021] 2. The plunger pair pressing mechanism of the present utility model can use the third screw rod to press the plunger pair of the fuel injection pump when disassembling the fuel injection pump, so as to prevent the components connected to the springs from suddenly popping out during the disassembly process, avoiding safety accidents.

[0022] In summary, the present device can significantly reduce the safety hazards caused by the sudden popping out of accessories due to the elastic force of the springs during the overhaul and disassembly of the combined governor and the fuel injection pump, greatly protecting the personal safety of the staff. At the same time, the fixing operation of these two core components is convenient, and one person can complete it without the intervention of multiple people. The operation efficiency of the overhaul and disassembly is significantly improved and the operation difficulty is reduced. Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the present utility model;

[0024] Figure 2 is the front view of the present utility model;

[0025] Reference Numerals:

[0026] 1. Bracket platform; 2. Motor clamping mechanism; 201. Mounting plate; 202. First positioning block; 203. Clamping plate; 3. Servo motor pressing mechanism; 301. Column; 302. First screw; 303. Connecting plate; 304. Threaded sleeve; 305. Positioning sleeve; 306. Rotating rod; 4. Spring cover pressing mechanism; 401. Fixed plate; 402. T-shaped support plate; 403. Pressing plate; 404. Second screw; 405. Sliding plate; 406. Second positioning block; 407. Chute; 5. Fuel injection pump fixing component; 501. Mounting through hole; 502. Fixing bolt; 6. Plunger couple pressing mechanism; 601. Support frame; 602. Third screw. Detailed implementation mode

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. The present invention will be further described in conjunction with the drawings and embodiments:

[0028] As Figure 1 and Figure 2 shown, the combined governor and fuel injection pump comprehensive disassembly and assembly platform includes a bracket platform 1. The two ends of the bracket platform 1 are respectively installed with a combined governor maintenance assembly and a fuel injection pump maintenance assembly. The combined governor maintenance assembly includes a servo motor pressing mechanism 3 and a spring cover pressing mechanism 4. The servo motor pressing mechanism 3 is cooperated with a motor clamping mechanism 2 fixed on the bracket platform 1 below. The fuel injection pump maintenance assembly includes a fuel injection pump fixing component 5 and a plunger couple pressing mechanism 6.

[0029] For further refinement of the solution of the embodiment of the present invention, as Figure 1 and Figure 2 shown, the servo motor pressing mechanism 3 includes a column 301, a connecting plate 303, a threaded sleeve 304 and a first screw 302. The column 301 is installed on the bracket platform 1. The upper end of the column 301 is fixedly connected to the threaded sleeve 304 through the connecting plate 303. The threaded sleeve 304 is provided with a first threaded through hole. The first screw 302 passes through the first threaded through hole and is in threaded cooperation with the threaded sleeve 304. The first threaded through hole is not labeled in the figure.

[0030] For further optimization of the above solution, the bracket platform 1 is provided with a mounting hole. The lower end of the column 301 is connected to a positioning screw (not labeled in the figure). The positioning screw passes through the mounting hole and is in threaded connection with the positioning sleeve 305. By rotating the positioning sleeve 305, the column 301 can be fixed to the bracket platform 1;

[0031] Furthermore, a through hole perpendicular to the axis is provided on the positioning sleeve 305. A rotating rod 306 is further included. The rotating rod 306 passes through the through hole and is movably connected to the inside of the positioning sleeve 305. Spherical limiting blocks are provided at both ends of the rotating rod 306. The spherical limiting blocks can prevent the rotating rod 306 from disengaging from the positioning sleeve 305. The spherical limiting blocks are not labeled in the figure.

[0032] The further refinement of the solution of the embodiment of the present utility model is as Figure 1 and Figure 2 shown, the spring gland pressing mechanism 4 includes a fixing plate 401, a T-shaped support plate 402, a sliding plate 405, a second screw 404 and a pressing disc 403. Fixing plates 401 are symmetrically arranged on the support platform 1. Slots with open upper ends are respectively provided on the two fixing plates 401. The T-shaped support plates 402 are inserted into the slots. Sliding grooves 407 that are slidably matched with the sliding plate 405 are symmetrically opened on the two T-shaped support plates 402, and the sliding plate 405 is arranged parallel to the support platform 1. A second threaded through hole is provided on the sliding plate 405. The second screw 404 passes through the second threaded through hole and its lower end is connected to the pressing disc 403. The second threaded through hole is not labeled in the figure.

[0033] For the further optimization of the above embodiment solution, a through hole communicating with the slot is provided on the fixing plate 401. A threaded hole corresponding to the through hole on the fixing plate 401 is provided on the T-shaped support plate 402. An installation bolt is further included. The installation bolt sequentially passes through the through hole on the fixing plate 401 and the threaded hole on the T-shaped support plate 402 and is in threaded cooperation with the T-shaped support plate 402, thereby realizing the connection and fixation between the T-shaped support plate 402 and the fixing plate 401.

[0034] Furthermore, guide blocks are respectively installed at both ends of the sliding plate 405. The guide blocks are not shown in the figure. The guide blocks lean against the inner side of the T-shaped support plate 402, thereby preventing the sliding plate 405 from running off track when moving along the sliding groove 407.

[0035] The further refinement of the solution of the embodiment of the present utility model is as Figure 1 and Figure 2 shown, the fuel injection pump fixing assembly 5 includes a plurality of fixing bolts 502 and installation through holes 501. Installation through holes 501 for placing the fuel injection pump fixing seat are provided on the support platform 1. A plurality of threaded holes are circumferentially distributed around the installation through holes 501. The threaded holes correspond one-to-one to the installation holes on the fuel injection pump fixing seat, and the fuel injection pump is fixed on the support platform 1 through the fixing bolts 502.

[0036] The further refinement of the solution of the embodiment of the present utility model is as Figure 1 and Figure 2As shown in the figure, a long strip through hole with one end open is provided on the support platform 1. The long strip through hole is not labeled in the figure. Above the long strip through hole, a plunger pair pressing mechanism 6 is installed. The plunger pair pressing mechanism 6 includes a support frame 601 and a third screw 602. The support frame 601 is fixedly connected to the support platform 1. A third threaded through hole is provided on the support frame 601, which is not labeled in the figure. The third screw 602 passes through the third threaded through hole and is in threaded cooperation with the support frame 601. For the optimization of the solution, the upper ends of the first screw 302, the second screw 404, and the third screw 602 are all connected to the handle to make it more convenient to operate the three screws.

[0037] For further refinement of the solution of the embodiment of the present utility model, as Figure 1 and Figure 2 shown, a motor clamping mechanism 2 fixedly arranged on the support platform is fitted below the first screw 302. The motor clamping mechanism 2 includes a mounting plate 201, a clamping plate 203, and a first positioning block 202. A first through hole is provided on the support platform 1 and the mounting plate 201 is installed. A second through hole is provided at the center of the mounting plate 201. The first through hole and the second through hole have the same size and are coaxial. Symmetrically distributed fastening bolts are installed on the mounting plate 201. Third through holes and fourth through holes are respectively provided on the clamping plate 203 and the first positioning block 202. One of the fastening bolts passes through the third through hole and is fixedly connected to the mounting plate 201 through a nut, and the other fastening bolt passes through the fourth through hole and is fixedly connected to the mounting plate 201 through a nut.

[0038] For further refinement of the solution of the embodiment of the present utility model, as Figure 1 and Figure 2 shown, symmetrically distributed protrusions are provided on the pressing plate 403. The protrusions are not labeled in the figure; the protrusions correspond to the grooves on the spring pressing cover of the combined regulator so that the cooperation between the pressing plate 403 and the spring pressing cover has a better pressing effect.

[0039] For further refinement of the solution of the embodiment of the present utility model, as Figure 1 and Figure 2 shown, it further includes second positioning blocks 406 symmetrically distributed on the support platform 1 and located on the front side of the fixed plate 401; the housing of the combined regulator can be stuck in the area surrounded by the two fixed plates 401 and the two second positioning blocks 406 to achieve preliminary position limitation.

[0040] The working process of the present utility model:

[0041] First, place the flange of the servo motor part of the combined governor on the mounting plate 201. The combined governor is not shown in the figure. Then, press one end of the flange against the first positioning block 202, and press the other end against the mounting plate 201 through the pressing plate 203. After fixing the servo motor part, rotate the first screw 302 so that the first screw 302 presses on the upper end of the servo motor spring fitting area. Then, place the spring cover part of the combined governor under the spring cover pressing mechanism 4. Immediately rotate the second screw 404 so that the lower end of the second screw 404 presses on the upper end of the spring cover, preventing the dangerous phenomenon caused by the sudden ejection of the fittings due to the spring force during disassembly and assembly.

[0042] After fixing the combined governor, immediately install the fuel injection pump into the installation through hole 501 of the support platform through the fixing bolt 502. Then, disassemble the outer shell of the fuel injection pump. After disassembling the outer shell, transfer the fuel injection pump to the lower part of the plunger pair pressing mechanism 6 so that the third screw 602 presses the plunger pair of the fuel injection pump, and continue to disassemble its internal components.

[0043] Compared with the prior art, the device can significantly reduce the safety hazards caused by the sudden ejection of the fittings due to the spring force during the overhaul and disassembly of the combined governor and the fuel injection pump, greatly protecting the personal safety of the staff. At the same time, the fixing operation of these two core components is convenient, and one person can complete it without the need for multiple people to intervene. The operation efficiency of overhaul and disassembly is significantly improved and the operation difficulty is reduced.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. Combined governor and fuel injection pump comprehensive disassembly and assembly platform, characterized in that, It includes a support platform (1). At both ends of the support platform (1), a combined governor overhaul assembly and a fuel injection pump overhaul assembly are respectively installed. The combined governor overhaul assembly includes a servo motor pressing mechanism (3) and a spring gland pressing mechanism (4). Below the servo motor pressing mechanism (3), there is a motor clamping mechanism (2) fixedly arranged on the support platform (1). The fuel injection pump overhaul assembly includes a fuel injection pump fixing component (5) and a plunger pair pressing mechanism (6).

2. The combined governor and fuel injection pump comprehensive disassembly and assembly platform according to claim 1, wherein The servo motor pressing mechanism (3) includes a column (301), a connecting plate (303), a threaded sleeve (304), and a first screw (302). The column (301) is installed on the support platform (1). The upper end of the column (301) is fixedly connected to the threaded sleeve (304) through the connecting plate (303). The threaded sleeve (304) is provided with a first threaded through hole, and the first screw (302) passes through the first threaded through hole and is in threaded cooperation with the threaded sleeve (304).

3. The combined governor and fuel injection pump comprehensive disassembly and assembly platform according to claim 2, characterized in that, The spring gland pressing mechanism (4) includes a fixing plate (401), a T-shaped support plate (402), a pressing disc (403), a second screw (404), and a sliding plate (405). Fixing plates (401) are symmetrically arranged on the support platform (1). Slots with open upper ends are respectively provided on the two fixing plates (401). T-shaped support plates (402) are inserted into the slots. Symmetrically arranged chutes (407) for sliding cooperation with the sliding plate (405) are provided on the two T-shaped support plates (402), and the sliding plate (405) is arranged parallel to the support platform (1). A second threaded through hole is provided on the sliding plate (405), and the second screw (404) passes through the second threaded through hole and its lower end is connected to the pressing disc (403).

4. The combined regulator and fuel injection pump comprehensive disassembly and assembly platform according to claim 1, characterized in that The fuel injection pump fixing component (5) includes a number of fixing bolts (502) and an installation through hole (501). An installation through hole (501) for placing a fuel injection pump fixing seat is provided on the support platform (1). A number of threaded holes are circumferentially distributed around the installation through hole (501). The threaded holes correspond one by one to the installation holes on the fuel injection pump fixing seat, and the fuel injection pump is fixed on the support platform (1) through the fixing bolts (502).

5. The combined governor and fuel injection pump comprehensive disassembly and assembly platform according to claim 3, characterized in that, A long strip-shaped through hole with an open end is provided on the support platform (1). Above the long strip-shaped through hole, a plunger pair pressing mechanism (6) is installed. The plunger pair pressing mechanism (6) includes a support frame (601) and a third screw (602). The support frame (601) is fixedly connected to the support platform (1). A third threaded through hole is provided on the support frame (601), and the third screw (602) passes through the third threaded through hole and is in threaded cooperation with the support frame (601).

6. The combined governor and fuel injection pump comprehensive disassembly and assembly platform according to claim 2, characterized in that, Below the first screw rod (302), a motor clamping mechanism (2) fixedly arranged on the support platform is cooperated. The motor clamping mechanism (2) includes a mounting disc (201), a clamping plate (203) and a first positioning block (202). A first through hole is provided on the support platform (1) and the mounting disc (201) is installed. A second through hole is provided at the center of the mounting disc (201). The first through hole and the second through hole are of the same size and coaxial. Symmetrically distributed fastening bolts are installed on the mounting disc (201). Third through holes and fourth through holes are respectively provided on the clamping plate (203) and the first positioning block (202). One of the fastening bolts passes through the third through hole and is fixedly connected to the mounting disc (201) through a nut, and the other fastening bolt passes through the fourth through hole and is fixedly connected to the mounting disc (201) through a nut.

7. The combined governor and fuel injection pump comprehensive disassembly and assembly platform according to claim 3, characterized in that, Symmetrically distributed protrusions are provided on the pressing disc (403).

8. The combined governor and fuel injection pump comprehensive disassembly and assembly platform according to claim 3, characterized in that, It further includes second positioning blocks (406) which are arranged on the front side of the fixing plate (401) and symmetrically distributed on the support platform (1).

9. The combined governor and fuel injection pump comprehensive disassembly and assembly platform according to claim 5, characterized in that, The upper ends of the first screw rod (302), the second screw rod (404) and the third screw rod (602) are all connected to the handle.

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