Semi-mechanized diesel engine timing gear assembling device

Abstract

The utility model discloses a semi-mechanized diesel engine timing gear assembling device, which is connected with a timing gear and comprises a guide sleeve, a guide sleeve, a positioning sleeve, a positioning sleeve, a positioning sleeve, a positioning sleeve and a positioning sleeve, the guide sleeve is of a cylindrical structure, the guide sleeve comprises a holding end, a guide end and a positioning cavity, and the holding end is positioned on the top surface of the guide sleeve; the guide end is positioned on the bottom surface of the guide sleeve; the positioning cavity is a semi-open cylindrical space located in the guide sleeve and comprises a positioning ring, and one side of the timing gear is fixed in the positioning ring; the positioning block is arranged on the side face of the guide sleeve, the positioning block comprises a positioning pin and a first through hole, and the positioning pin is movably connected into the first through hole; and one end of the positioning pin protrudes out of the positioning block. According to the utility model, the problems of poor manual installation precision, difficulty in mechanical maintenance and cost increase can be avoided; and the accuracy degree of mounting the timing gear is improved.

Description

Technical Field

[0001] The utility model relates to the field of engine timing gears, in particular to a semi-mechanized diesel engine timing gear assembly device. Background Art

[0002] The crankshaft timing gear is a key component in the engine that drives the valve timing chain or timing belt to ensure that the opening and closing of the valves are synchronized with the up and down movement of the pistons. Ensuring correct timing can enable the engine to achieve optimal performance and fuel efficiency.

[0003] The timing gear has a timing pin hole, which is a concave hole set at a certain angle on the timing gear during processing. Whether the timing pin hole is aligned in the correct position determines whether the valve and piston are synchronized. If they are not synchronized, the piston and valve will collide and damage the engine.

[0004] The existing solution relies on visual inspection to determine the timing pin hole position and manually install the timing gear. However, the visual inspection accuracy is low and the shaking of holding the timing gear affects the installation position. The mechanical installation method requires constant changes in basic settings, which makes maintenance difficult and increases costs.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide a semi-mechanized diesel engine timing gear assembly device, which can solve the problems existing in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides a semi-mechanized diesel engine timing gear assembly device, which is connected to the timing gear and is characterized in that it includes: a guide sleeve, which is a cylindrical structure, and the guide sleeve includes a holding end, a guide end and a positioning cavity, and the holding end is located on the top surface of the guide sleeve; the guide end is located on the bottom surface of the guide sleeve; the positioning cavity is a semi-open cylindrical space located inside the guide sleeve, and the positioning cavity includes a positioning ring, and one side of the timing gear is fixed in the positioning ring; a positioning block, which is a sheet-like structure, and the positioning block is arranged on the side of the guide sleeve, and the positioning block includes a positioning pin and a first through hole, and the positioning pin is movably connected in the first through hole; wherein, the positioning pin is arranged to protrude from the positioning block at one end toward the guide end.

[0008] In one or more embodiments, the diameter of the positioning ring is larger than the mode diameter of the positioning cavity.

[0009] In one or more embodiments, the sheet-shaped flat surface of the positioning block is arranged perpendicular to the axis of the guide sleeve.

[0010] In one or more embodiments, the guide sleeve further comprises a slot, and the slot is disposed on the top of the guide sleeve.

[0011] In one or more embodiments, the positioning block further includes a limiting block, the limiting block is located at the top of the guide sleeve, and the limiting block is movably connected to one end of the positioning pin facing the holding end to limit the positioning pin.

[0012] In one or more embodiments, the positioning block further includes a hexagon socket bolt, one end of the hexagon socket bolt is connected to the positioning block, and the other end of the hexagon socket bolt is connected to the limiting block.

[0013] In one or more embodiments, the positioning block further includes a second through hole, the second through hole is arranged parallel to the axis of the guide sleeve, and the second through hole is arranged at an end of the positioning block away from the guide sleeve.

[0014] In one or more embodiments, the holding end includes a handle, and the handle is an elongated cylindrical structure.

[0015] In one or more embodiments, the crankshaft of the engine is movably connected in the positioning cavity, the timing gear is movably connected in the positioning ring, and the timing gear ring is arranged outside the crankshaft.

[0016] Compared with the prior art, the multiple technical solutions and embodiments provided by the present invention at least include the following technical effects or advantages:

[0017] By setting up a semi-mechanized timing gear installation device, the problems of poor manual installation accuracy, difficult mechanical maintenance and increased costs are avoided; the installation angle of the timing gear is limited by the positioning pin, and the positioning is accurate; the crankshaft and the timing gear are fixed by the positioning inner cavity, and during installation, the semi-mechanized diesel engine timing gear assembly device only needs to be fixed on the crankshaft and pushed inward, which saves the force required to offset gravity when lifting the equipment, and prevents the equipment from being too heavy to cause the hand-held timing gear to shake, affecting the installation position; a second through hole is set as a sight for pre-aiming the installation position to improve the installation accuracy; a movable positioning pin is set, and the position of the positioning pin is limited by the limit block, and the positioning pin can be replaced arbitrarily according to the requirements of timing gears of different specifications and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and can be considered as illustrative of various combinations of preferred embodiments and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 A schematic cross-sectional view of the overall structure of a semi-mechanized diesel engine timing gear assembly device provided by the utility model;

[0020] Figure 2 A three-dimensional overall structural schematic diagram of a semi-mechanized diesel engine timing gear assembly device provided by the utility model;

[0021] Figure 3 The utility model provides a three-view overall structure of a semi-mechanized diesel engine timing gear assembly device;

[0022] The numbers in the figure represent: 1-guide sleeve, 11-second through hole, 2-positioning block, 3-positioning pin, 4-limiting block, 5-hexagon socket bolt, 6-slot, 7-positioning cavity, 71-positioning ring, 8-crankshaft, 9-timing gear. DETAILED DESCRIPTION

[0023] Unless explicitly stated otherwise, throughout the specification and claims, the term "comprise" or its variations such as "include" or "comprising", "made of", etc. will be understood to include the stated elements or components but not to exclude other elements or other components.

[0024] The utility model aims to provide a semi-mechanized diesel engine timing gear assembly device, which solves the problems of poor manual installation accuracy, difficult mechanical maintenance, and increased costs; accurate positioning; saves the force required to lift the device to offset gravity, and prevents the device from being too heavy, causing the handheld timing gear 9 to shake and affecting the installation position; a second through hole 11 is provided as a sight for pre-aiming the installation position, thereby improving the installation accuracy.

[0025] Embodiment 1:

[0026] The present embodiment provides a semi-mechanized diesel engine timing gear assembly device, which is connected to the timing gear 9 and includes: a guide sleeve 1, which is a cylindrical structure, and includes a gripping end, a guiding end and a positioning cavity 7, wherein the gripping end is located on the top surface of the guide sleeve 1; the guiding end is located on the bottom surface of the guide sleeve 1; the positioning cavity 7 is a semi-open cylindrical space located inside the guide sleeve 1, and the positioning cavity 7 includes a positioning ring 71, and one side of the timing gear 9 is fixed in the positioning ring 71; a positioning block 2, which is a sheet-like structure, and is arranged on the side of the guide sleeve 1, and includes a positioning pin 3 and a first through hole, and the positioning pin 3 is movably connected in the first through hole; wherein, the positioning pin 3 is arranged to protrude from the positioning block 2 at one end toward the guiding end; preferably, the diameter of the positioning ring 71 is larger than the majority diameter of the positioning cavity 7; preferably, the sheet-like flat surface of the positioning block 2 is arranged perpendicular to the axis of the guide sleeve 1.

[0027] Specifically, in order to avoid the problems of poor manual installation accuracy, difficult mechanical maintenance, and increased costs; improve positioning accuracy; save the force required to lift the equipment to offset gravity, and prevent the equipment from being too heavy, causing the handheld timing gear 9 to shake, affecting the installation position. In this embodiment, a guide sleeve 1 and a positioning block 2 are provided, and the flat surface of the positioning block 2 is perpendicular to the axis of the guide sleeve 1. A positioning pin 3 is movable in the first through hole of the positioning block 2. The shape of the positioning pin 3 is matched with the shape of the pin hole of the timing gear 9. The positioning pin 3 prevents the angle from being offset when the timing gear 9 is installed by fixing the pin hole. At the same time, the holding end has a simple structure and is easy to hold. When the positioning pin hole is located, the timing gear 9 is aligned with the positioning pin 3 by rotation, and the positioning pin 3 is inserted into the pin hole. The timing gear 9 cannot rotate due to the structural strength. At the same time, the axis of the guide sleeve is flush with the horizontal plane. The timing gear 9 can only move with the semi-mechanized diesel engine timing gear assembly device, which can prevent the timing gear 9 from moving uncontrollably in any direction, and play a fixing effect. The shape of the positioning cavity 7 is arranged to match the crankshaft 8, and a positioning ring 71 is provided. The diameter of the positioning ring 71 is larger than the mode diameter of the positioning cavity 7, that is, the positioning ring 71 is an open space with a diameter larger than that of the positioning cavity 7. The positioning ring 71 is used to fix the timing gear 9. After the crankshaft 8 and the timing gear 9 are fixed, the timing gear 9 can be arranged on the shaft handle of the crankshaft 8. The timing gear 9 is driven by the semi-mechanized diesel engine timing gear assembly device to be installed to the correct position. Since the user only needs to provide a thrust toward the inside of the crankshaft 8 to drive the timing gear 9 to be installed, the impact of the installation accuracy caused by the user's operating errors is reduced, and the overall installation accuracy is improved.

[0028] As a preferred implementation of this embodiment, the guide sleeve 1 further includes a slot 6, which is arranged at the top of the guide sleeve 1. Preferably, the positioning block 2 further includes a limit block 4, which is movably connected in the slot 6, and the limit block 4 is movably connected to one end of the positioning pin 3 facing the holding end, so as to limit the positioning pin 3. Preferably, the positioning block 2 further includes a hexagon socket bolt 5, one end of which is connected to the positioning block 2, and the other end is connected to the limit block 4.

[0029] Specifically, in order to fix the locating pin 3 and facilitate the replacement of the specifications of the locating pin 3 to adapt to different timing gears 9, the limit block 4 is fixed to the locating block 2 by the hexagon socket bolt 5, and the limit block 4 is fixed close to the end of the locating pin 3 facing the holding end by screwing the hexagon socket bolt 5 to fix or loosen the locating pin 3, and the slot 6 is used to provide space for the limit block 4 to move.

[0030] As a preferred implementation manner of this embodiment, the positioning block 2 further includes a second through hole 11 , which is arranged parallel to the axis of the guide sleeve 1 , and the second through hole 11 is arranged at an end of the positioning block 2 away from the guide sleeve 1 .

[0031] Specifically, during installation, the semi-mechanized diesel engine timing gear assembly device blocks the timing gear 9, making it impossible to determine whether the timing gear 9 is accurately positioned, and the mounting surface of the timing gear 9 cannot be seen through the semi-mechanized diesel engine timing gear assembly device. The second through hole 11 is provided, and the second through hole 11 serves as a positioning aiming tool for the timing gear 9 during installation. In view of this preferred embodiment, the user can align the second through hole 11 with the standard point of the crankshaft 8, and then determine that the mounting surface of the timing gear 9 is aligned, providing excellent installation accuracy.

[0032] As a preferred implementation manner of this embodiment, the holding end includes a handle, and the handle is a long cylindrical structure.

[0033] As a preferred implementation of this embodiment, the crankshaft 8 of the engine is movably connected in the positioning cavity 7, and the timing gear 9 is movably connected in the positioning ring 71, and the timing gear 9 is arranged outside the crankshaft 8. When the timing gear assembly device for a semi-mechanized diesel engine is used, the timing gear 9 is assembled in the positioning ring 71, the positioning pin 3 is embedded in the pin hole for fixing, and then the crankshaft 8 is inserted into the positioning cavity 7, the timing gear 9 is close to the installation surface, and the second through hole 11 is aligned with the standard point for installation, so as to achieve precise installation and fixation.

[0034] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A semi-mechanized diesel engine timing gear assembly device, connected to the timing gear, characterized in that: include: A guide sleeve, the guide sleeve is a cylindrical structure, the guide sleeve comprises a gripping end, a guiding end and a positioning cavity, the gripping end is located on the top surface of the guide sleeve; The guide end is located on the bottom surface of the guide sleeve; the positioning cavity is a semi-open cylindrical space located inside the guide sleeve, and the positioning cavity includes a positioning ring, and one side of the timing gear is fixed in the positioning ring; A positioning block, the positioning block is a sheet-like structure, the positioning block is arranged on the side of the guide sleeve, the positioning block comprises a positioning pin and a first through hole, and the positioning pin is movably connected in the first through hole; Wherein, one end of the positioning pin facing the guide end protrudes from the positioning block.

2. A semi-mechanized diesel engine timing gear assembly device as claimed in claim 1, characterized in that: The sheet-shaped flat surface of the positioning block is arranged perpendicular to the axis of the guide sleeve.

3. A semi-mechanized diesel engine timing gear assembly device as claimed in claim 2, characterized in that: The guide sleeve further comprises a slot, and the slot is arranged on the top of the guide sleeve.

4. A semi-mechanized diesel engine timing gear assembly device as claimed in claim 3, characterized in that: The positioning block also includes a limiting block, which is movably connected in the slot and movably blockingly connected to one end of the positioning pin facing the holding end, for limiting the positioning pin.

5. A semi-mechanized diesel engine timing gear assembly device as claimed in claim 4, characterized in that: The positioning block also includes a hexagon socket bolt, one end of which is connected to the positioning block, and the other end of which is connected to the limiting block.

6. A semi-mechanized diesel engine timing gear assembly device as claimed in claim 2, characterized in that: The positioning block further comprises a second through hole, the second through hole is arranged parallel to the axis of the guide sleeve, and the second through hole is arranged at an end of the positioning block away from the guide sleeve.

7. A semi-mechanized diesel engine timing gear assembly device as claimed in claim 1, characterized in that: The holding end comprises a handle, and the handle is a long cylindrical structure.

8. A semi-mechanized diesel engine timing gear assembly device as claimed in any one of claims 1 to 7, characterized in that: The crankshaft of the engine is movably connected in the positioning cavity, the timing gear is movably connected in the positioning ring, and the timing gear ring is arranged outside the crankshaft.

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