Novel piston connecting rod fixing tool

Abstract

The utility model provides a novel piston connecting rod fixing tool, which is suitable for the technical field of diesel engine manufacturing, and adopts the technical scheme that the novel piston connecting rod fixing tool comprises a piston skirt main body, a connecting rod main body, a first connecting hole, a limiting block, a fixing block and a second connecting hole, first connecting holes are symmetrically formed in the surface of the piston skirt body, limiting blocks are symmetrically installed on the top of the piston skirt body, fixing blocks are symmetrically installed on the surface of the piston skirt body, and second connecting holes are formed in the surfaces of the two fixing blocks. In the placing and transferring process of the piston connecting rod, the connecting rod is upright, the occupied space is reduced, and the bottom edge of the piston skirt body and the rod body of the connecting rod body are protected against collision. The utility model is also applicable to the field of diesel engine manufacturing.

Description

Technical Field

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

[0002] The installation of piston and connecting rods is involved in the production process of high-power medium-speed engines. Usually, the piston and connecting rods are assembled in other areas before being hoisted into the cylinder. After assembly, they are placed on pallets and transported to the machine for installation. Pistons and connecting rods are key and important components of diesel engines and require precise matching. Therefore, the components need to be protected during processing, assembly and transportation.

[0003] If the connecting rod is not fixed, it will lean to one side and lean against the edge of the piston skirt, taking up a large space and easily damaging the main body or causing accidents such as tipping over and injuring people. In addition, during the lifting process, the connecting rod is not in a vertical state, and the center of gravity of the lifting point and the piston-connecting rod assembly are not on the same plumb line, so there is a risk of further shaking during lifting.

[0004] After the piston connecting rod is installed, there is no special fixing tool. Large triangular wooden wedges are usually used for placement and transportation. They are inserted into both sides of the connecting rod and clamped to fix it. First, wood chips will fall into the piston cavity. The space between the small end of the piston and the piston cavity is small and difficult to clean. Second, due to the inappropriate size, it is difficult to put in and take out, and it is difficult to completely place the connecting rod and it is shaking. Before the lifting process, the wooden wedges need to be removed for cleaning, which results in a waste of time, insecurity and instability during lifting, and a long time to adjust the slings during lifting, resulting in low installation efficiency.

[0005] Therefore, it is necessary to provide a new type of piston connecting rod fixing tool to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a novel piston connecting rod fixing tool.

[0007] The new piston-connecting rod fixing tool provided by the utility model comprises: a piston skirt body, a connecting rod body, a first connecting hole, a limiting block, a fixing block and a second connecting hole, wherein the inner wall of the piston skirt body is rotatably connected with the connecting rod body, the surface of the piston skirt body is symmetrically provided with the first connecting hole, the top of the piston skirt body is symmetrically provided with the limiting blocks, the surface of the piston skirt body is symmetrically provided with fixing blocks, and the surfaces of the two fixing blocks are provided with second connecting holes.

[0008] Place two limit blocks on the top of the piston skirt body, the connecting rod body is located at the center of the piston skirt body, the two fixing blocks are firmly connected to the piston skirt body, and the piston skirt body and the limit blocks are quickly fixed to ensure that the center of gravity of the piston skirt body and the connecting rod body are on the same plumb line.

[0009] Preferably, the tops of the two limit blocks are provided with limit holes, and the bottoms of the two limit blocks are provided with fitting grooves.

[0010] Move the limit block close to the piston skirt body, the edge of the piston skirt body enters the fitting groove, and the connecting rod body moves to the inside of the limit hole, so that the limit block is close to the top of the piston skirt body and the connecting rod body is moved to the center position of the piston skirt body.

[0011] Preferably, the first connecting hole and the second connecting hole are aligned, and the inner walls of the first connecting hole and the second connecting hole are meshedly connected with a threaded rod.

[0012] The fixing block is close to the limiting block, the first connecting hole and the second connecting hole are aligned, the threaded rod is rotated to enter the inner walls of the first connecting hole and the second connecting hole, the piston skirt body and the fixing block are firmly connected, and the limiting block is firmly fixed, so as to facilitate the quick assembly of the limiting block and the piston skirt body.

[0013] Preferably, positioning holes are opened on the surfaces of the two limit blocks, and the surface of the fixing block close to the limit block is fixedly connected with a positioning block, and the positioning block is slidably connected with the positioning hole.

[0014] The fixing block is close to the limiting block, and the positioning block enters the positioning hole, so that the fixing block and the limiting block can be quickly positioned, thereby improving the installation speed of the fixing block.

[0015] Preferably, the limit block is made of hard plastic.

[0016] It is elastic, easy to color, available in a variety of hardnesses, can be extruded, injection-cast and blow-molded, can be reinforced with glass cellulose, can maintain its properties at low temperatures, can be printed, recycled, has good tear and abrasion resistance, good sun and seawater resistance, and good oil and chemical resistance.

[0017] Preferably, the fixing block is designed to be arc-shaped.

[0018] Ensure that the fixing block is in close contact with the surface of the piston skirt body. When the fixing block and the piston skirt body are firmly connected, impurities will not easily enter the gap between the piston skirt body and the fixing block.

[0019] Preferably, semicircular grooves are equidistantly formed on the side of the driving block on the side of the threaded rod away from the piston skirt body.

[0020] By increasing the friction of the driving block on one side of the threaded rod, the threaded rod can be manually driven to rotate without using tools to drive the threaded rod to rotate.

[0021] Compared with the related art, the new piston connecting rod fixing tool provided by the utility model has the following beneficial effects:

[0022] The utility model provides a new type of piston connecting rod fixing tool:

[0023] 1. By installing the piston skirt body, the connecting rod body, the first connecting hole, the limit block, the fixing block and the second connecting hole, the connecting rod stands upright during the placement and transportation of the piston connecting rod, which reduces the occupied space and protects the bottom edge of the piston skirt body and the connecting rod body from being bumped.

[0024] 2. Semicircular grooves are evenly spaced on the side of the driving block on the side of the threaded rod away from the piston skirt body to increase the friction of the driving block on one side of the threaded rod, so that the threaded rod can be manually driven to rotate without using tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The overall structural diagram provided by the utility model;

[0026] Figure 2 This is an enlarged schematic diagram of the piston skirt body provided by the utility model;

[0027] Figure 3 This is an enlarged schematic diagram of the limit block provided by the utility model.

[0028] Numbers in the figure: 1. Piston skirt body; 2. Connecting rod body; 3. First connecting hole; 4. Limiting block; 5. Fixing block; 6. Second connecting hole; 7. Limiting hole; 8. Fitting groove; 9. Threaded rod; 10. Positioning hole; 11. Positioning block. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 The new piston connecting rod fixing tool includes: a piston skirt body 1, a connecting rod body 2, a first connecting hole 3, a limit block 4, a fixing block 5 and a second connecting hole 6. The inner wall of the piston skirt body 1 is rotatably connected to the connecting rod body 2, the surface of the piston skirt body 1 is symmetrically provided with the first connecting hole 3, the top of the piston skirt body 1 is symmetrically installed with the limit block 4, the surface of the piston skirt body 1 is symmetrically installed with the fixing blocks 5, and the surfaces of the two fixing blocks 5 are provided with the second connecting holes 6.

[0031] Place two limit blocks 4 on the top of the piston skirt body 1, the connecting rod body 2 is located at the center of the piston skirt body 1, and the two fixing blocks 5 are firmly connected to the piston skirt body 1. The piston skirt body 1 and the limit blocks 4 are quickly fixed to ensure that the center of gravity of the piston skirt body 1 and the connecting rod body 2 are on the same plumb line.

[0032] Embodiment 1:

[0033] In the specific implementation process, Figure 2 and Figure 3As shown, the tops of the two limit blocks 4 are provided with limit holes 7 , and the bottoms of the two limit blocks 4 are provided with fitting grooves 8 .

[0034] Move the limit block 4 close to the piston skirt body 1, the edge of the piston skirt body 1 enters the fitting groove 8, and the connecting rod body 2 is moved to the inside of the limit hole 7, so that the limit block 4 is close to the top of the piston skirt body 1 and the connecting rod body 2 is moved to the center position of the piston skirt body 1.

[0035] refer to Figure 2 As shown, the first connecting hole 3 and the second connecting hole 6 are aligned, and the inner walls of the first connecting hole 3 and the second connecting hole 6 are meshedly connected with a threaded rod 9 .

[0036] The fixing block 5 is close to the limiting block 4, the first connecting hole 3 and the second connecting hole 6 are aligned, and the threaded rod 9 is rotated to enter the inner walls of the first connecting hole 3 and the second connecting hole 6, so as to firmly connect the piston skirt body 1 and the fixing block 5, and firmly fix the limiting block 4, so as to facilitate the quick assembly of the limiting block 4 and the piston skirt body 1.

[0037] refer to Figure 3 As shown, positioning holes 10 are opened on the surfaces of the two limit blocks 4 , and a positioning block 11 is fixedly connected to the surface of the fixing block 5 close to the limit block 4 , and the positioning block 11 is slidably connected with the positioning hole 10 .

[0038] The fixing block 5 is close to the limiting block 4 , and the positioning block 11 enters the interior of the positioning hole 10 , which facilitates the fast positioning of the fixing block 5 and the limiting block 4 , thereby improving the installation speed of the fixing block 5 .

[0039] refer to Figure 1 and Figure 2 As shown, the limit block 4 is made of hard plastic.

[0040] It is elastic, easy to color, available in a variety of hardnesses, can be extruded, injection-cast and blow-molded, can be reinforced with glass cellulose, can maintain its properties at low temperatures, can be printed, recycled, has good tear and abrasion resistance, good sun and seawater resistance, and good oil and chemical resistance.

[0041] refer to Figure 2 As shown, the fixing block 5 is designed to be arc-shaped.

[0042] Ensure that the fixing block 5 is in close contact with the surface of the piston skirt body 1. When the fixing block 5 and the piston skirt body 1 are firmly connected, impurities will not easily enter the gap between the piston skirt body 1 and the fixing block 5.

[0043] Embodiment 2:

[0044] refer to Figure 2 As shown, semicircular grooves are equidistantly formed on the side of the driving block of the threaded rod 9 away from the piston skirt body 1 .

[0045] By increasing the friction force of the driving block on one side of the threaded rod 9, the threaded rod 9 can be driven to rotate manually without using a tool to drive the threaded rod 9 to rotate.

[0046] 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 specification and drawings of the present invention, 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 new type of piston connecting rod fixing tool, characterized in that: include: A piston skirt body (1), a connecting rod body (2), a first connecting hole (3), a limit block (4), a fixing block (5) and a second connecting hole (6); the inner wall of the piston skirt body (1) is rotatably connected to the connecting rod body (2); the surface of the piston skirt body (1) is symmetrically provided with the first connecting hole (3); the top of the piston skirt body (1) is symmetrically provided with the limit blocks (4); the surface of the piston skirt body (1) is symmetrically provided with fixing blocks (5); and the surfaces of the two fixing blocks (5) are provided with the second connecting holes (6).

2. The new piston connecting rod fixing tool according to claim 1 is characterized in that: The tops of the two limit blocks (4) are provided with limit holes (7), and the bottoms of the two limit blocks (4) are provided with fitting grooves (8).

3. The new piston connecting rod fixing tool according to claim 1 is characterized in that: The first connection hole (3) and the second connection hole (6) are aligned in position, and a threaded rod (9) is meshedly connected to the inner walls of the first connection hole (3) and the second connection hole (6).

4. The new piston connecting rod fixing tool according to claim 1 is characterized in that: Positioning holes (10) are provided on the surfaces of the two limit blocks (4); a positioning block (11) is fixedly connected to the surface of the fixing block (5) close to the limit blocks (4); and the positioning block (11) is slidably connected with the positioning hole (10).

5. The new piston connecting rod fixing tool according to claim 1 is characterized in that: The limiting block (4) is made of hard plastic.

6. The novel piston connecting rod fixing tool according to claim 1 is characterized in that: The fixing block (5) is designed in an arc shape.

7. The new piston connecting rod fixing tool according to claim 3 is characterized in that: Semicircular grooves are equidistantly formed on the side of the driving block on the side of the threaded rod (9) away from the piston skirt body (1).

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