Tool and method for pre-adjusting gasket of fuel injection pump of high-power high-speed diesel engine

Abstract

The high-power high-speed diesel engine fuel injection pump gasket pre-adjusting tool comprises a bottom plate, a boss, a base and inserting grooves, the boss is fixedly installed at the bottom end of the bottom plate, the inserting grooves are symmetrically formed in the bottom plate at equal intervals, the base is arranged in the inserting grooves, and a reinforcing device is fixedly installed in the base. Compared with a traditional oil injection pump gasket adjusting and detecting tool, when the oil injection pump gasket adjusting and detecting tool is used, parts and materials with corresponding sizes can be selected according to data such as the specification and the scale of an oil injection pump, the parts and the materials can be rapidly combined and assembled, rapid positioning of the parts can be completed through connecting bolts of the oil injection pump in subsequent use, and the working efficiency is improved. During detection, the tappet is connected with the component, so that the bottom cover protrudes towards the upper end, detection of the thickness and data of the gasket can be completed by detecting the distance between the bottom cover and the bottom plate, the use of the device is more efficient and stable, and the stability of subsequent main body equipment during use is ensured.

Description

Technical Field

[0001] The invention relates to the field of diesel engine fuel injection pumps, and in particular to a gasket pre-adjustment tool and an adjustment method for a high-power and high-speed diesel engine fuel injection pump. Background Art

[0002] The production process of high-power high-speed diesel engines involves the installation of fuel injection pumps. Due to differences in cam profiles or the cumulative error of gear transmission between the cam and the crankshaft, it is easy to cause deviations in the injection timing of some cylinders, which manifests as uneven operation of the diesel engine cylinders, affecting the overall performance of the diesel engine. The traditional diesel engine fuel injection pump gasket is based on the benchmark thickness obtained by theoretical calculation. It is uniformly installed according to the theoretical thickness during the assembly stage. Then, after the performance test is carried out, the performance parameters of each cylinder are observed. For the cylinders with performance deviations, the fuel injection pump needs to be installed again, and the thickness of the fuel injection pump gasket is adjusted according to the calculation results to adjust the uniformity of the operation of each cylinder. The operation efficiency is low and it is easy to cause a waste of assembly and testing costs.

[0003] Therefore, it is necessary to provide a new high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool and adjustment method to solve the above-mentioned technical problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a high-power high-speed diesel engine injection pump gasket pre-adjustment tool and adjustment method that can be quickly detected and easily calibrated.

[0005] The high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool provided by the present invention comprises: a bottom plate, a boss, a base and a slot, wherein the boss is fixedly installed at the bottom end of the bottom plate, slots are symmetrically and equidistantly provided inside the bottom plate, a base is provided inside the slot, a reinforcement device is fixedly installed inside the base, and is used for quickly connecting various components, so as to facilitate subsequent detection of the spacing, a positioning device is fixedly installed at the bottom end of the base, and is used for connecting the bottom plate with the screw groove inside the pump body, so as to facilitate the connection between the two and form positioning, a detection device is fixedly installed inside the bottom plate, and the detection device comprises a connecting rod, a bottom cover, a connecting groove and a matching groove, a connecting rod is slidably installed inside the bottom plate, a bottom cover is fixedly installed at the end of the connecting rod, a connecting groove is commonly provided inside the connecting rod and the bottom cover, and a matching groove is provided at the end of the connecting rod, so as to facilitate the connection of the push rod of the fuel injection pump driving mechanism and to detect the thickness of the subsequent gasket.

[0006] Preferably, the detection device includes a fixed platform and a slide groove, the fixed platform is fixedly installed on the surface of the boss, the fixed platform, the bottom plate and the inside of the boss are jointly provided with a slide groove, and the slide groove is slidably plugged with the connecting rod.

[0007] Preferably, the mating groove is spherical in shape as a whole, which facilitates connection and mating with the tappet of the driving mechanism of the fuel injection pump during use, and facilitates subsequent detection.

[0008] Preferably, the reinforcement device includes a top block, a rotating end, a threaded groove and a threaded rod. The top block is arranged on the surface of the base, the rotating end is fixedly mounted on the end of the top block, a threaded groove is opened inside the top block, and a threaded rod is threadedly mounted inside the threaded groove.

[0009] Preferably, a special hexagonal rotating plate is provided at the end of the threaded rod, which makes the threaded rod more efficient and stable when rotated during use.

[0010] Preferably, the positioning device includes a positioning rod, a limiting rod, an engagement groove and a sliding groove. The base is provided with a sliding groove, the sliding groove is provided with a positioning rod slidably installed inside, the limiting rod is fixedly installed at the top of the positioning rod, and the limiting rod is provided with an engagement groove inside.

[0011] Preferably, the overall specifications of the meshing groove match the connecting bolts of the diesel engine fuel injection pump, so that the positioning and calibration of the device can be completed with respect to the connecting bolts at the top of the fuel injection pump during use.

[0012] Preferably, a notch for threaded connection is provided inside the positioning rod, which facilitates the assembly and installation of components during use.

[0013] Preferably, a method for adjusting a high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool comprises the following steps:

[0014] 1. Select materials and choose corresponding parts according to the specifications and specific conditions of the diesel engine fuel injection pump;

[0015] 2. Assembly: insert the positioning rod into the base through the use of the sliding groove and connect it with the top block. Then, the upper and lower parts of the base are installed and reinforced through the use of the threaded rod and the threaded groove.

[0016] 3. Position, and then rotate the rotating end to make the limit rod match with the connecting bolt at the top of the injection pump, and use the meshing groove to lock the overall position of the component;

[0017] 4. Inspection: Install the tappet of the fuel injection pump drive mechanism into the matching groove, then slide the connecting rod into the sliding groove as a whole, and use the locking of the overall position of the bottom plate to make the tappet drive the connecting rod to slide. Then, you only need to observe the height difference between the bottom cover and the bottom plate to complete the inspection of the gasket thickness.

[0018] 5. Use, select the gasket of corresponding thickness according to the detected height difference, so that the use of the gasket itself is more efficient.

[0019] Compared with the related art, the high-power high-speed diesel engine injection pump gasket pre-adjustment tool and adjustment method provided by the present invention have the following beneficial effects:

[0020] The present invention provides a high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool and adjustment method. When in use, by using a reinforcement device, a positioning device and a detection device, components and materials of corresponding sizes can be selected according to the specifications, dimensions and other data of the fuel injection pump itself, and they can be quickly combined and assembled. In subsequent use, the fuel injection pump's own connecting bolts can also be used to complete the rapid positioning of the components themselves. During detection, the connection between the push rod and the component is used to make the bottom cover itself bulge toward the upper end. By detecting the distance between the bottom cover and the bottom plate, the gasket thickness and data detection can be completed, so that the use of the equipment itself is more efficient and stable, and the stability of the subsequent main equipment during use is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the overall structural schematic diagrams of the present invention;

[0022] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0023] Figure 3 This is the third schematic diagram of the overall structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the reinforcement device of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the positioning device of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the detection device of the present invention.

[0027] Numbers in the figure: 1. bottom plate; 2. boss; 3. base; 4. slot; 5. reinforcement device; 51. top block; 52. rotating end; 53. threaded groove; 54. threaded rod; 6. positioning device; 61. positioning rod; 62. limiting rod; 63. engaging groove; 64. sliding groove; 7. detection device; 71. fixed platform; 72. sliding groove; 73. connecting rod; 74. bottom cover; 75. connecting groove; 76. matching groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0030] Embodiment 1:

[0031] See also Figure 1 , Figure 2 and Figure 3 A high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool provided by an embodiment of the present invention comprises: a bottom plate 1, a boss 2, a base 3 and a slot 4, a boss 2 is fixedly installed at the bottom end of the bottom plate 1, slots 4 are symmetrically and equidistantly opened inside the bottom plate 1, a base 3 is arranged inside the slot 4, a reinforcement device 5 is fixedly installed inside the base 3 for quickly connecting various components to facilitate subsequent detection of spacing, a positioning device 6 is fixedly installed at the bottom end of the base 3 for connecting the bottom plate 1 with the screw groove inside the pump body to facilitate the connection between the two to form positioning, a detection device 7 is fixedly installed inside the bottom plate 1, the detection device 7 comprises a connecting rod 73, a bottom cover 74, a connecting groove 75 and a matching groove 76, a connecting rod 73 is slidably installed inside the bottom plate 1, a bottom cover 74 is fixedly installed at the end of the connecting rod 73, a connecting groove 75 is commonly opened inside the connecting rod 73 and the bottom cover 74, a matching groove 76 is opened at the end of the connecting rod 73, which is convenient for connecting the tappet of the fuel injection pump drive mechanism to detect the thickness of the subsequent gasket.

[0032] During use, the device is placed at the target position, and then the corresponding size of the material is selected according to the specifications of the fuel injection pump itself. The various components of the device are combined by using the reinforcement device 5 and the positioning device 6, and the position and height of the device itself are quickly locked to facilitate subsequent detection. Finally, by using the detection device 7, the push rod of the fuel injection pump drive mechanism is installed into the matching groove 76, and then the connecting rod 73 is slid into the slide groove 72 as a whole. The overall position of the bottom plate 1 is locked, so that the push rod drives the connecting rod 73 itself to slide. Subsequently, it is only necessary to observe the height difference between the bottom cover 74 and the bottom plate 1 to complete the detection of the gasket thickness, making the use effect of the device itself more efficient and perfect.

[0033] See also Figure 6 The detection device 7 includes a fixed platform 71 and a slide groove 72. The fixed platform 71 is fixedly installed on the surface of the boss 2. The fixed platform 71, the bottom plate 1 and the boss 2 are commonly provided with the slide groove 72. The slide groove 72 is slidably plugged with the connecting rod 73.

[0034] See also Figure 6 The matching groove 76 is spherical in shape as a whole, which is convenient for connection and matching with the tappet of the driving mechanism of the fuel injection pump during use, and is convenient for subsequent detection.

[0035] See also Figure 4 The reinforcement device 5 includes a top block 51, a rotating end 52, a threaded groove 53 and a threaded rod 54. The top block 51 is arranged on the surface of the base 3, the rotating end 52 is fixedly installed on the end of the top block 51, a threaded groove 53 is opened inside the top block 51, and a threaded rod 54 is threadedly installed inside the threaded groove 53.

[0036] During use, the positioning rod 61 is inserted into the base 3 and connected to the top block 51 through the use of the sliding groove 64, and then the upper and lower end components of the base 3 are installed and reinforced through the use of the threaded rod 54 and the threaded groove 53. Then, by rotating the rotating end 52, the limit rod 62 is matched with the connecting bolt at the top of the injection pump. With the use of the meshing groove 63, the overall position of the component is locked, and the position locking and positioning of the component itself can be completed.

[0037] See also Figure 4 A special hexagonal rotating plate is provided at the end of the threaded rod 54, which makes the threaded rod 54 more efficient and stable when rotating during use.

[0038] See also Figure 5 The positioning device 6 includes a positioning rod 61, a limiting rod 62, an engagement groove 63 and a sliding groove 64. The base 3 is provided with a sliding groove 64, and the positioning rod 61 is slidably installed inside the sliding groove 64. The limiting rod 62 is fixedly installed on the top of the positioning rod 61, and the limiting rod 62 is provided with an engagement groove 63.

[0039] See also Figure 5 The overall specifications of the meshing groove 63 match the connecting bolts of the diesel engine injection pump, and during use, the positioning and calibration of the equipment can be completed according to the connecting bolts at the top of the injection pump.

[0040] See also Figure 5 A notch for threaded connection is provided inside the positioning rod 61, which facilitates the assembly and installation of components during use.

[0041] See also Figures 1 to 6 , a method for adjusting a gasket pre-adjustment tool for a high-power high-speed diesel engine injection pump, the steps are as follows:

[0042] 1. Select materials and choose corresponding parts according to the specifications and specific conditions of the diesel engine fuel injection pump;

[0043] 2. Assembly: insert the positioning rod 61 into the base 3 by using the sliding groove 64 and connect it with the top block 51. Then, the upper and lower end parts of the base 3 are installed and reinforced by using the threaded rod 54 and the threaded groove 53.

[0044] 3. Positioning, then by rotating the rotating end 52, the limit rod 62 is matched with the connecting bolt at the top of the fuel injection pump, and the overall position of the component is locked by using the meshing groove 63;

[0045] 4. Inspection: Install the tappet of the fuel injection pump drive mechanism into the matching groove 76, then slide the connecting rod 73 into the sliding groove 72 as a whole, and use the locking of the overall position of the bottom plate 1 to make the tappet drive the connecting rod 73 to slide. Then, you only need to observe the height difference between the bottom cover 74 and the bottom plate 1 to complete the inspection of the gasket thickness.

[0046] 5. Use, select the gasket of corresponding thickness according to the detected height difference, so that the use of the gasket itself is more efficient.

[0047] The working principle of the high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool provided by the present invention is as follows: when the device is used, the device is placed at the target position, and then the material of corresponding size is selected according to the specifications of the fuel injection pump itself. By using the reinforcement device 5 and the positioning device 6, the various components of the device itself are combined, and the position, height, etc. of the device itself are quickly locked. By using the sliding groove 64, the positioning rod 61 is inserted into the base 3 and connected to the top block 51, and then the threaded rod 54 and the threaded groove 53 are used to complete the installation and reinforcement of the upper and lower end components of the base 3, and then the rotating end 5 is rotated. 2, so that the limit rod 62 is matched with the connecting bolt at the top of the fuel injection pump, and the engagement groove 63 is used to lock the overall position of the component, and the position locking and positioning of the component itself can be completed, which is convenient for subsequent detection. Finally, through the use of the detection device 7, the push rod of the fuel injection pump drive mechanism is installed into the matching groove 76, and then the connecting rod 73 is slid into the slide groove 72 as a whole. The overall position of the bottom plate 1 is locked, so that the push rod drives the connecting rod 73 itself to slide. Subsequently, it is only necessary to observe the height difference between the bottom cover 74 and the bottom plate 1 to complete the detection of the gasket thickness, making the use effect of the equipment itself more efficient and perfect.

[0048] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0049] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool, characterized in that: include: A bottom plate (1), a boss (2) is fixedly mounted on the bottom end of the bottom plate (1), slots (4) are symmetrically and equidistantly arranged inside the bottom plate (1), and a base (3) is arranged inside the slots (4); A reinforcement device (5), the reinforcement device (5) is fixedly installed inside the base (3) and is used for quickly connecting various components to facilitate subsequent spacing detection; A positioning device (6), the positioning device (6) is fixedly mounted on the bottom end of the base (3) and is used to connect the bottom plate (1) with the screw groove inside the pump body to facilitate the connection between the two and form a positioning; The detection device (7) is fixedly installed inside the base plate (1). The detection device (7) comprises a connecting rod (73), a bottom cover (74), a connecting groove (75) and a matching groove (76). The connecting rod (73) is slidably installed inside the base plate (1). The bottom cover (74) is fixedly installed at the end of the connecting rod (73). The connecting rod (73) and the bottom cover (74) are both provided with a connecting groove (75). The end of the connecting rod (73) is provided with a matching groove (76) for connecting to a tappet of a fuel injection pump driving mechanism and for detecting the thickness of a subsequent gasket.

2. The high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool according to claim 1 is characterized in that: The detection device (7) comprises a fixed platform (71) and a slide groove (72); the fixed platform (71) is fixedly mounted on the surface of the boss (2); the fixed platform (71), the bottom plate (1) and the boss (2) are provided with a slide groove (72); the slide groove (72) is slidably plugged with a connecting rod (73).

3. The high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool according to claim 1, characterized in that: The matching groove (76) is spherical in shape as a whole.

4. The high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool according to claim 1, characterized in that: The reinforcing device (5) comprises a top block (51), a rotating end (52), a threaded groove (53) and a threaded rod (54); the top block (51) is arranged on the surface of the base (3); the rotating end (52) is fixedly mounted on the end of the top block (51); a threaded groove (53) is provided inside the top block (51); and a threaded rod (54) is threadedly mounted inside the threaded groove (53).

5. The high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool according to claim 4 is characterized in that: A special hexagonal rotating plate is arranged at the end of the threaded rod (54).

6. The high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool according to claim 1, characterized in that: The positioning device (6) comprises a positioning rod (61), a limiting rod (62), an engaging groove (63) and a sliding groove (64); the base (3) is provided with a sliding groove (64); the positioning rod (61) is slidably installed inside the sliding groove (64); the limiting rod (62) is fixedly installed at the top of the positioning rod (61); and the limiting rod (62) is provided with an engaging groove (63) inside.

7. The high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool according to claim 6, characterized in that: The overall specifications of the engagement groove (63) match the connecting bolts of the diesel engine fuel injection pump.

8. The high-power high-speed diesel engine fuel injection pump gasket pre-adjustment tool according to claim 6, characterized in that: The positioning rod (61) is provided with a notch for threaded connection inside.

9. The method for adjusting the gasket pre-adjustment tool for a high-power high-speed diesel engine fuel injection pump according to any one of claims 1 to 8, characterized in that: Here are the steps: 1) Select materials and choose corresponding parts according to the specifications and specific conditions of the diesel engine fuel injection pump; 2) Assembling, by using the sliding groove (64), inserting the positioning rod (61) into the interior of the base (3), and connecting it with the top block (51), and then using the threaded rod (54) and the threaded groove (53), completing the installation and reinforcement of the upper and lower end parts of the base (3); 3) Positioning, then rotating the rotating end (52) so that the limit rod (62) is matched with the connecting bolt at the top of the fuel injection pump, and the overall position of the component is locked by using the meshing groove (63); 4) Inspection: by installing the push rod of the fuel injection pump driving mechanism into the matching groove (76), and then sliding the connecting rod (73) into the sliding groove (72) as a whole, and locking the overall position of the bottom plate (1), the push rod drives the connecting rod (73) to slide. Subsequently, it is only necessary to observe the height difference between the bottom cover (74) and the bottom plate (1) to complete the inspection of the gasket thickness; 5) Use, select the gasket of corresponding thickness according to the detected height difference, so that the use of the gasket itself is more efficient.

Images