Novel piston inner connecting rod fixing tool

Abstract

The utility model relates to the technical field of diesel engine assembly tools, and discloses a novel piston inner connecting rod fixing tool which comprises two fixing blocks, a plurality of connecting rods, a plurality of connecting rods and a plurality of connecting rods. The arc-shaped matching groove is formed in the middle of the inner side of the fixing block, and the outer side of the fixing block is in an arc shape. According to the novel fixing tool for the piston inner connecting rod, the two fixing blocks are directly inserted into the left position and the right position of the edge of a piston cylinder through the clamping grooves, so that the piston connecting rod can be straightened, the connecting rod is upright in the placing and transferring process of the piston connecting rod, the occupied space is reduced, and meanwhile the bottom edge of a piston cylinder skirt and a rod body of the piston connecting rod can be prevented from colliding with each other; and the fixing block is simple in structure, convenient to operate and convenient to disassemble and assemble, so that the piston connecting rod can be simply hoisted after the fixing block is assembled, and vertical hoisting can be performed to avoid shaking.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine assembly tooling, in particular to a novel piston inner connecting rod fixing tool. Background Art

[0002] The production process of high-power medium-speed engines involves the installation of piston connecting rods. Usually, the piston connecting rods are assembled in other areas before being hoisted into the cylinder. After assembly, they are placed on a pallet and wait to be transported to the side of the machine for installation. During installation, the connecting rod needs to be fixed. If the connecting rod is not fixed, the connecting rod will lean to one side and lean against the edge of the piston skirt, occupying a large space, and it is very easy to damage the main body or cause accidents such as tipping over and injuring people. In addition, during the hoisting process, the connecting rod is not in a vertical state, and the center of gravity of the hoisting point and the piston-connecting rod assembly are not on the same plumb line. There is a risk of further shaking during lifting. Since the piston and connecting rod are key and important components of the diesel engine and require precise coordination, the components need to be protected by fixing tools during processing, assembly and transportation.

[0003] Common piston inner connecting rod fixing tools usually use large triangular wooden wedges, which are inserted into both sides of the connecting rod to fix it. However, this method will cause wood chips to fall into the piston cavity, which is difficult to clean due to the narrow space between the small end of the piston and the piston cavity; on the other hand, the inappropriate size makes it difficult to put in and take out, and it is difficult to completely prevent the connecting rod from shaking, and the wooden wedges need to be taken out for cleaning before the lifting process, which causes a waste of time in lifting, unsafe and unstable, and a long time to adjust the slings during lifting, and the installation efficiency is low, which cannot meet the working requirements of the inner connecting rod fixing tool. For this reason, a new piston inner connecting rod fixing tool is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a novel piston inner connecting rod fixing tool to solve the technical problems that wood chips fall into the piston cavity when the wooden wedge is fixed, making it difficult to clean and put in and take out.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of piston inner connecting rod fixing tool, comprising:

[0008] A fixing block, wherein the number of the fixing blocks is two, and a clamping groove is provided at the bottom of each fixing block;

[0009] The arc-shaped matching groove is arranged in the middle of the inner side of the fixing block, and the outer side of the fixing block is all arranged in an arc shape.

[0010] Preferably, the fixing block is made of hard plastic, which improves the overall hardness of the fixing block.

[0011] Preferably, both the left and right sides of the top of the fixing block are connected with sleeve rods, and clamping blocks are sleeved outside the sleeve rods. Rubber blocks are installed inside the clamping blocks, and the rubber blocks can be compressed and rebounded for limiting, which improves the stability of the fixing block during limiting.

[0012] Preferably, inner insertion blocks are inserted inside the clamping blocks. Limiting through holes are opened on both the left and right sides of the interiors of the clamping blocks and the inner insertion blocks. Rubber protrusions are circumferentially installed on both the upper and lower sides inside the limiting through holes, which improves the tightness of the clamping between the inner insertion blocks and the sleeve rods.

[0013] Preferably, springs are connected to the inner sides of the inner insertion blocks. The number of springs is 2 - 4 groups, and the inner ends of the springs are connected to the corresponding positions of the inner cavities of the clamping blocks, which facilitates pushing the inner insertion blocks for extrusion and limiting.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides a new type of fixing tool for the inner connecting rod of a piston, having the following beneficial effects:

[0016] For this new type of fixing tool for the inner connecting rod of a piston, by directly inserting two fixing blocks into the left and right positions at the edge of the piston cylinder through the clamping grooves, the piston connecting rod can be straightened. During the placement and transportation of the piston connecting rod, the connecting rod stands upright, reducing the occupied space. At the same time, it can protect the bottom edge of the piston cylinder skirt and the rod body of the piston connecting rod from bumping against each other. And because the structure of the fixing block is simple, the operation is convenient, and the disassembly and assembly are easy, after installing the fixing block, the hoisting of the piston connecting rod is simple, and it can be vertically hoisted to avoid shaking. At the same time, since the fixing block is made of integral hard plastic material, compared with the traditional wooden wedge fixing, no foreign objects will fall into the piston cavity, improving the use quality of the fixing tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic diagram of the state of the piston cylinder and the piston connecting rod of the present utility model without installing the fixing block;

[0019] Figure 3 is a schematic structural diagram of the fixing block of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the clamping block and the rubber block of the present utility model;

[0021] Figure 5 is an exploded schematic diagram of the clamping block and the inner insertion block of the present utility model.

[0022] In the figure: 1. Fixed block; 2. Clamping groove; 3. Arc-shaped mating groove; 4. Sleeve rod; 5. Clamping block; 6. Rubber block; 7. Limit through hole; 8. Inner insertion block; 9. Spring; 10. Rubber protrusion; 11. Piston cylinder; 12. Piston connecting rod. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] The present invention provides a technical solution, a new type of piston inner connecting rod fixing tool, including a fixed block 1, a clamping groove 2, an arc-shaped mating groove 3, a sleeve rod 4, a clamping block 5, a rubber block 6, a limit through hole 7, an inner insertion block 8, a spring 9, a rubber protrusion 10, a piston cylinder 11 and a piston connecting rod 12:

[0025] Please refer to Figure 1 , the number of the fixed blocks 1 is two. Please refer to Figure 3 , clamping grooves 3 are respectively opened at the bottoms of the fixed blocks 1, and the fixed blocks 1 are made of hard plastic;

[0026] The arc-shaped mating groove 3 is opened in the middle of the inner side of the fixed block 1, and the outer sides of the fixed blocks 1 are all arc-shaped. Please refer to Figure 1 and Figure 2 , by directly inserting the two fixed blocks 1 into the left and right positions on the edge of the piston cylinder 11 through the clamping grooves 2, the piston connecting rod 12 can be straightened, so that during the placement and transportation of the piston connecting rod 12, the connecting rod stands upright, reducing the occupied space. At the same time, it can protect the bottom edge of the skirt of the piston cylinder 11 and the rod body of the piston connecting rod 12 from bumping against each other. And because the structure of the fixed block 1 is simple, the operation is convenient, and the disassembly and assembly are easy, the hoisting of the piston connecting rod 12 is simple after the fixed block 1 is installed, and it can be vertically hoisted to avoid shaking;

[0027] Please refer to Figure 1 , sleeve rods 4 are respectively connected to the left and right sides of the top of the fixed block 1, and clamping blocks 5 are sleeved on the outer parts of the sleeve rods 4. Please refer to Figure 4 , rubber blocks 6 are respectively installed on the inner sides of the clamping blocks 5, inner insertion blocks 8 are respectively inserted into the clamping blocks 5, limit through holes 7 are respectively opened on the left and right sides inside the clamping blocks 5 and the inner insertion blocks 8, and rubber protrusions 10 are circumferentially installed on the upper and lower sides inside the limit through holes 7. Please refer to Figure 5, springs 9 are connected to the inner sides of the interpolation blocks 8. The number of springs 9 is 2 - 4 groups. The inner ends of the springs 9 are connected to the corresponding positions in the inner cavity of the clamping block 5. Please refer to Figure 1 , by pressing the interpolation block 8, the limiting through hole 7 inside the clamping block 5 can be made to coincide with it, and then the clamping block 5 can be sleeved outside the sleeve rod 4. This can limit the rubber block 6 after it is squeezed by the piston connecting rod 12, improving the stability of the piston connecting rod 12 after being aligned. At the same time, due to the elasticity of the rubber block 6, it can be well adapted when aligning piston connecting rods 12 of different sizes.

[0028] In this solution, the two fixing blocks 1 are directly inserted into the left and right positions at the edge of the piston cylinder 11 through the clamping grooves 2, and then the piston connecting rod 12 can be aligned. During the placement and transportation of the piston connecting rod 12, the connecting rod stands upright, reducing the occupied space. At the same time, it can protect the bottom edge of the skirt of the piston cylinder 11 and the rod body of the piston connecting rod 12 from knocking against each other. Moreover, due to the simple structure, convenient operation and easy disassembly of the fixing block 1, it is simple to lift the piston connecting rod 12 after installing the fixing block 1. It can be vertically hoisted to avoid shaking. By pressing the interpolation block 8, the limiting through hole 7 inside the clamping block 5 can be made to coincide with it, and then the clamping block 5 can be sleeved outside the sleeve rod 4. This can limit the rubber block 6 after it is squeezed by the piston connecting rod 12, improving the stability of the piston connecting rod 12 after being aligned. At the same time, due to the elasticity of the rubber block 6, it can be well adapted when aligning piston connecting rods 12 of different sizes.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of piston inner connecting rod fixing tool, characterized in that: include: A fixing block (1), wherein the number of the fixing blocks (1) is two, and a clamping groove (2) is provided at the bottom of each fixing block (1); The arc-shaped matching groove (3) is arranged in the middle of the inner side of the fixing block (1), and the outer side of the fixing block (1) is all arranged in an arc shape.

2. A novel piston inner connecting rod fixing tool according to claim 1, characterized in that: The material of the fixing block (1) is hard plastic.

3. A novel piston inner connecting rod fixing tool according to claim 1, characterized in that: The left and right sides of the top of the fixing block (1) are connected to sleeve rods (4), the outside of the sleeve rods (4) are sleeved with clamping blocks (5), and the inside of the clamping blocks (5) are equipped with rubber blocks (6).

4. A novel piston inner connecting rod fixing tool according to claim 3, characterized in that: An insert block (8) is inserted into the interior of the clamping block (5), and limiting through holes (7) are provided on the left and right sides of the interior of the clamping block (5) and the insert block (8), and rubber protrusions (10) are circumferentially installed on the upper and lower sides of the interior of the limiting through hole (7).

5. A novel piston inner connecting rod fixing tool according to claim 4, characterized in that: The inner sides of the insert blocks (8) are connected with springs (9), the number of the springs (9) is 2-4 groups, and the inner ends of the springs (9) are connected to corresponding positions of the inner cavity of the clamping block (5).

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