Jig for assembly and disassembly of centrifugal gears in engines

Abstract

The present invention discloses a jig for assembling and disassembling centrifugal gears of engines, comprising a pulling rod, a limiting sleeve, a pulling handle and a limiting cartridge, wherein the limiting sleeve is slidably sleeved on the lower section of the pulling rod, the pulling handle is vertically intersected and connected with the axis of the pulling rod, the limiting cartridge is sleeved on the upper section of the pulling rod and the pulling handle is rotationally matched, and the limiting cartridge is provided with a rotating opening for ensuring the rotational freedom of the limiting cartridge along the extension direction of the cylinder wall. The present invention discloses a jig for assembling and disassembling centrifugal gears of engines, which realizes limiting clamping of the centrifugal gears by cooperating with a heavy hammer provided on the centrifugal gears. The centrifugal gear disassembly jig is suitable for stably clamping the centrifugal gears in a narrow space, thereby realizing the assembly and disassembly of the centrifugal gears, and does not damage the working surface of the centrifugal gears, thereby ensuring that the assembled and disassembled centrifugal gears can be reused, thereby reducing costs while improving assembly and disassembly efficiency, and meeting the assembly requirements of the centrifugal gears.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical parts assembly tools, and in particular to a jig used for assembling and disassembling engine centrifugal gears. Background Art

[0002] The engine centrifugal gear is a plastic gear assembled near the camshaft of the engine. Due to the large number of parts in the engine cylinder and the compact arrangement of the transmission parts to ensure the effective use of the internal space of the engine, it is easy to be interfered with by other parts during assembly, making it difficult to assemble and disassemble. In particular, the centrifugal gear arranged on the inner wall of the cylinder near the camshaft cannot be assembled by hand due to the narrow and long space, and the existing assembly tools cannot meet the requirements of limiting and clamping in this space to realize the assembly and disassembly of the centrifugal gear.

[0003] Therefore, in order to solve the above problems, a jig is needed for assembling and disassembling the centrifugal gear of the engine, which can cooperate with the heavy hammer arranged on the centrifugal gear to realize the limited clamping of the centrifugal gear. The centrifugal gear disassembly jig is suitable for the stable clamping of the centrifugal gear in a narrow space, thereby realizing the assembly and disassembly of the centrifugal gear without damaging the working surface of the centrifugal gear, ensuring that the centrifugal gear can be reused after assembly and disassembly, reducing costs while improving assembly and disassembly efficiency, and meeting the assembly requirements of the centrifugal gear. Summary of the invention

[0004] In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a jig for assembling and disassembling the centrifugal gear of the engine, which can cooperate with the heavy hammer arranged on the centrifugal gear to realize the limited clamping of the centrifugal gear. The centrifugal gear disassembly jig is suitable for stable clamping of the centrifugal gear in a narrow space to realize the assembly and disassembly of the centrifugal gear without damaging the working surface of the centrifugal gear, ensuring that the centrifugal gear after assembly and disassembly can be reused, reducing costs while improving assembly and disassembly efficiency, and meeting the assembly requirements of the centrifugal gear.

[0005] The jig for assembling and disassembling engine centrifugal gears of the present invention comprises a pulling rod, a limiting sleeve, a pulling handle and a limiting cartridge, wherein the limiting sleeve is slidably sleeved on the lower section of the pulling rod, the pulling handle is vertically intersected and connected with the axis of the pulling rod, the limiting cartridge is sleeved on the upper section of the pulling rod and the pulling handle is rotatably matched, the limiting cartridge is provided with a rotating opening for ensuring the rotational freedom of the limiting cartridge along the extension direction of the cylinder wall, the lower end of the pulling rod is provided with a limiting block for limiting the axial movement limit of the limiting sleeve, and the pulling rod is adjacent to the upper section of the pulling rod. The outer diameter of the position of the limit block is reduced to form a clamping section, and a clamping space for accommodating the centrifugal gear weight is formed between the clamping section and the limit sleeve, and an annular space is formed between the clamping section and the limit sleeve. When the limit block of the extraction rod pushes the weight to force the two opposite weights to close toward the middle and close to the outer surface of the clamping section, the limit sleeve is sleeved on the surface of the weight, and then the limit sleeve is axially limited by the limit cartridge to ensure that the limit sleeve stably clamps the weight to achieve clamping of the centrifugal gear and then realizes the assembly and disassembly of the centrifugal gear.

[0006] Furthermore, an axial hole for sleeve-mounting the centrifugal gear shaft is opened upward at the bottom end of the extraction rod, and the axial hole is a blind hole consistent with the axial direction of the extraction rod. The function of the axial hole is to guide along the centrifugal gear shaft to ensure that the heavy hammer can be accurately closed and attached to the outer surface of the clamping section.

[0007] Further, the extraction handle is inserted into the extraction rod, the extraction handle is fixedly connected to the extraction rod, and the limit clamp is rotationally matched with the extraction rod; or the extraction handle is slidingly matched with the extraction rod, and the limit clamp is slidingly and rotationally matched with the extraction rod.

[0008] Furthermore, both ends of the extraction handle are provided with limit blocks to prevent slipping and facilitate holding.

[0009] Furthermore, the limit clamping working surface of the limit clamping cylinder is an arc surface, which is convenient for guiding the limit clamping cylinder when rotating the limit clamping cylinder. The arc surface can not only guide but also make it easier to enter the clamping state during the limit clamping.

[0010] Furthermore, the opening width of the rotating opening is larger than the outer diameter of the upper section of the extraction rod. The width of the rotating opening is larger than the outer diameter of the extraction rod to ensure that the limiting cartridge can rotate normally.

[0011] Furthermore, a groove for facilitating sliding is provided on the upper section of the limiting sleeve. The groove is provided mainly to facilitate exertion when manually moving the limiting sleeve to avoid slipping.

[0012] The beneficial effects of the present invention are as follows: the present invention discloses a jig for assembling and disassembling engine centrifugal gears, which realizes the limited clamping of the centrifugal gears by cooperating with the heavy hammer arranged on the centrifugal gears. The centrifugal gear disassembly and assembly jig is suitable for stably clamping the centrifugal gears in a narrow space, thereby realizing the assembly and disassembly of the centrifugal gears, and does not damage the working surface of the centrifugal gears, thereby ensuring that the assembled and disassembled centrifugal gears can be reused, thereby reducing costs while improving the assembly and disassembly efficiency, and meeting the assembly requirements of the centrifugal gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 for Figure 1 Side view of

[0016] Figure 3 It is a structural schematic diagram of the limiting cartridge of the present invention rotated to another angle;

[0017] Figure 4 for Figure 1 A top view of

[0018] Figure 5 for Figure 1 A cross-sectional view of

[0019] Figure 6 It is a schematic diagram of the state when the present invention is clamped with the centrifugal gear;

[0020] Figure 7 Schematic diagram of a heavy hammer. DETAILED DESCRIPTION

[0021] Figure 1 It is a structural schematic diagram of the present invention, Figure 2 for Figure 1 Side view of Figure 3 This is a schematic diagram of the structure of the limit clamping cylinder of the present invention rotated to another angle. Figure 4 for Figure 1 A top view of Figure 5 for Figure 1 A cross-sectional view of Figure 6 This is a schematic diagram of the state when the present invention is clamped with the centrifugal gear. Figure 7As shown in the diagram of the hammer, the jig for assembling and disassembling the centrifugal gear of the engine in this embodiment includes a pull-out rod 1, a limiting sleeve 2, a pull-out handle 3 and a limiting cartridge 4. The limiting sleeve 2 is slidably sleeved on the lower section of the pull-out rod 1, and the pull-out handle 3 is vertically intersected and connected with the axis of the pull-out rod 1. The limiting cartridge 4 is sleeved on the upper section of the pull-out rod 1 and the pull-out handle 3 is rotatably matched. The limiting cartridge 4 is provided with a rotating opening 4a for ensuring the rotational freedom of the limiting cartridge 4 along the extension direction of the barrel wall. The lower end of the pull-out rod 1 is provided with a limiting block 1a for limiting the axial movement limit of the limiting sleeve 2. The pull-out rod 1 is adjacent to the The outer diameter of the position of the limit block 1a is reduced to form a clamping section 1b, and a clamping space for accommodating the centrifugal gear 5 weight 5a is formed between the clamping section 1b and the limit sleeve 2, and an annular space is formed between the clamping section 1b and the limit sleeve 2. When the limit block 1a of the extraction rod 1 pushes the weight 5a, the two relative weights 5a are forced to close toward the middle and close to the outer surface of the clamping section 1b. At this time, the limit sleeve 2 is sleeved on the surface of the weight 5a, and then the limit sleeve 2 is axially limited by the limit cartridge 4, ensuring that the limit sleeve 2 stably clamps the weight 5a to achieve the clamping of the centrifugal gear 5 and then realizes the assembly and disassembly of the centrifugal gear 5.

[0022] In this embodiment, an axial hole 1c for sleeve-mounting the centrifugal gear shaft 5b is formed upward at the bottom end of the extraction rod 1. The axial hole 1c is a blind hole consistent with the axial direction of the extraction rod 1. The function of the axial hole 1c is to guide along the centrifugal gear shaft 5b to ensure that the weight 5a can be accurately closed and attached to the outer surface of the clamping section 1b.

[0023] In this embodiment, the extraction handle 3 is inserted into the extraction rod 1, the extraction handle 3 is fixedly connected to the extraction rod 1, and the limiting cartridge 4 is rotationally matched with the extraction rod 1; or the extraction handle 3 is slidingly matched with the extraction rod 1, and the limiting cartridge 4 is slidingly and rotationally matched with the extraction rod 1.

[0024] In this embodiment, both ends of the extraction handle 3 are provided with limit blocks 3a to prevent slipping and facilitate holding.

[0025] In this embodiment, the limiting clamping working surface of the limiting clamping cylinder 4 is an arc surface 4b, which is convenient for guiding the limiting clamping cylinder 4 during rotation limiting clamping. The arc surface 4b can not only guide but also make it easier to enter the clamping state during limiting clamping.

[0026] In this embodiment, the opening width of the rotating opening 4a is larger than the outer diameter of the upper section of the extraction rod 1. The width of the rotating opening 4a is larger than the outer diameter of the extraction rod 1 to ensure that the limiting cartridge 4 can rotate normally.

[0027] In this embodiment, a groove 2a is provided on the upper section of the limiting sleeve 2 for facilitating sliding. The groove 2a is provided mainly to facilitate exertion when manually moving the limiting sleeve 2 to avoid slipping.

[0028] The present invention discloses a centrifugal gear 5 disassembly and assembly jig for an engine, which realizes the limited clamping of the centrifugal gear 5 by cooperating with a heavy hammer 5a arranged on the centrifugal gear 5. The centrifugal gear 5 disassembly and assembly jig is suitable for stably clamping the centrifugal gear 5 in a narrow space, thereby realizing the assembly and disassembly of the centrifugal gear 5 without damaging the working surface of the centrifugal gear 5, ensuring that the assembled and disassembled centrifugal gear 5 can be reused, reducing costs while improving assembly and disassembly efficiency, and meeting the assembly requirements of the centrifugal gear 5.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A jig for assembling and disassembling centrifugal gears of an engine, characterized in that: The invention comprises a pulling rod, a limiting sleeve, a pulling handle and a limiting cartridge, wherein the limiting sleeve is slidably sleeved on the lower section of the pulling rod, the pulling handle is vertically intersected and connected with the axis of the pulling rod, and the limiting cartridge is provided with a rotating opening for ensuring the rotational freedom of the limiting cartridge along the extension direction of the cylinder wall, and a limiting block is provided at the lower end of the pulling rod for limiting the axial movement limit of the limiting sleeve, and the outer diameter of the pulling rod adjacent to the limiting block is reduced to form a clamping section, and a clamping space for accommodating a centrifugal gear weight is formed between the clamping section and the limiting sleeve; an axial hole for sleeve-mounting a centrifugal gear shaft is provided upward at the bottom end of the pulling rod, and the axial hole is a blind hole consistent with the axial direction of the pulling rod; the pulling handle is inserted into the pulling rod, the pulling handle is fixedly connected to the pulling rod, and the limiting cartridge is rotationally matched with the pulling rod; or the pulling handle is slidingly matched with the pulling rod, and the limiting cartridge is slidingly and rotationally matched with the pulling rod.

2. The jig for assembling and disassembling engine centrifugal gears according to claim 1, characterized in that: Both ends of the extraction handle are provided with limit blocks to prevent slipping and facilitate holding.

3. The jig for assembling and disassembling engine centrifugal gears according to claim 1, characterized in that: The limit clamping working surface of the limit clamping cylinder is an arc surface, which is convenient for guiding the limit clamping cylinder when rotating and clamping.

4. The jig for assembling and disassembling engine centrifugal gears according to claim 3, characterized in that: The opening width of the rotating opening is greater than the outer diameter of the upper section of the extraction rod.

5. The jig for assembling and disassembling engine centrifugal gears according to claim 1, characterized in that: The upper section of the limiting sleeve is provided with a groove for facilitating sliding.

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