Calipers for disassembling and assembling piston ring of diesel engine

Abstract

The utility model relates to the technical field of diesel engine piston rings, and discloses diesel engine piston ring dismounting calipers which comprise a guide rail and clamping plates arranged on the two sides of the center position of the front face and the back face of the guide rail, and the guide rail is movably connected with the clamping plates. The handle is arranged under the inner end of the bottom of the clamping plate, and the clamping plate is movably connected with the handle. According to the calipers for disassembling and assembling the piston ring of the diesel engine, after the piston ring is fixed through the clamping plate, the piston ring is expanded in the arc direction of the guide rail through rotation of the handle, it is ensured that the piston is not excessively expanded to affect the performance of the piston ring, and the piston ring is conveniently and reliably installed on a piston ring groove. Therefore, the installation piston ring is simple in structure, small in size and light in weight, and operation can be completed with one hand.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine piston ring technology, specifically a caliper for disassembling and assembling diesel engine piston rings. Background Technology

[0002] A diesel engine, also known as a Diesel engine, is an internal combustion engine that uses diesel fuel. The working principle of a diesel engine mainly consists of four strokes: intake stroke, compression stroke, power stroke, and exhaust stroke. Diesel engines are widely used in various fields, including transportation (such as heavy trucks, buses, and trains), agriculture (such as tractors and harvesters), industry (such as generators and compressors), and military applications. Piston rings are important internal components of a diesel engine, serving multiple functions including sealing, regulating oil, heat conduction, and guidance. Clamps are required when installing or removing diesel engine piston rings.

[0003] Common calipers used for removing and installing piston rings in diesel engines typically consist of a handle, jaws, connecting rod, locking mechanism, and auxiliary components. The handle is the main part for the user to grip and operate the caliper. The connecting rod transmits the force applied by the handle to the jaws, which are in direct contact with the piston rings. The locking mechanism is used to fix the position of the jaws during the removal and installation process.

[0004] Traditionally, for the installation and removal of piston rings in diesel engines, a ring support is used to round the piston ring before it is installed into the piston ring groove, ensuring reliable installation. However, this method requires two people to operate the large and heavy tools used for this purpose, making it inconvenient. Therefore, a new type of caliper for installing and removing piston rings in diesel engines is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a caliper for removing and installing piston rings in diesel engines, thereby solving the technical problem that the aforementioned tool is large in size, heavy in weight, and requires two hands to operate, thus often requiring two people to cooperate during installation, making it inconvenient to use and operate.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a caliper for removing and installing piston rings in a diesel engine, comprising:

[0009] The guide rail and the card plates located on both sides of the center position of the front and back of the guide rail, and the guide rail and the card plates are movably connected;

[0010] The handle is located directly below the bottom inner end of the clamping plate, and the clamping plate and handle are movably connected. The guide rail is arc-shaped, similar to the shape of the piston ring after it is opened, ensuring that the piston ring opens along the arc direction. Clamping blocks in the clamping plates, symmetrically arranged on both sides, hold the piston ring at the opening, restricting the piston ring from contracting in the closing direction. The clamping grooves in the clamping plates limit the opening angle of the piston ring. Fixed bends are designed according to the appropriate opening angle of the piston ring to ensure ease of use. After the piston ring is fixed by the clamping plates, rotating the handle opens the piston ring along the arc direction of the guide rail, ensuring that the piston does not over-open and affect the piston ring performance, facilitating reliable installation of the piston ring into the piston ring groove. This results in a simple structure, small size, and light weight for piston ring installation, allowing for one-handed operation.

[0011] Preferably, a connecting seat is installed at the center of the top of the handle, and the connecting seat is U-shaped. The connecting seat is movably connected to the card plate. The handle is connected to the card plate through the connecting seat.

[0012] Preferably, a cam plate is added to the upper part of the center position on both sides of the connecting seat, and the cam plate is rotatably connected to the two sides of the connecting seat. The cam plate is designed to be lighter at the top and heavier at the bottom. The cam plate can rotate on the connecting seat and can be connected to a corresponding structure.

[0013] Preferably, a guide rod is provided on the back of the cam plate, and the guide rod is connected to the connecting seat. A locking pin is sleeved at the front end of the guide rod, and a compression spring is sleeved at the rear end of the guide rod. The compression spring is in contact with the locking pin. The compression spring can drive the locking pin to move along the surface of the guide rod, and after the cam plate rotates to the moving angle, the locking pin is inserted into the interior of the cam plate, thereby ensuring the stability of the cam plate after rotation.

[0014] Preferably, a locking head is provided at the center of the upper part of both sides of the handle, and the locking head extends inward through the outer wall of the handle, with a return spring provided at the inner end of the locking head. When the top of the handle is inserted into the inner cavity of the connector, the locking head extends outward along the inner wall of the connector under the action of the return spring.

[0015] Preferably, an outer connecting plate is installed at the center of the outer side of the clamping head, and the outer connecting plate is circular in design. A slot is formed at the top center of the outer connecting plate, corresponding to the cam plate. After the clamping head moves the outer connecting plate to the outside of the connecting seat, the cam plate rotates under its own weight into the slot, connecting the cam plate to the outer connecting plate. This not only ensures the stability of the connection between the handle and the connecting seat but also facilitates the assembly and disassembly of the handle and the connecting seat.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a caliper for removing and installing piston rings in diesel engines, which has the following advantages:

[0018] This caliper is used for installing and removing piston rings in diesel engines. After the piston ring is secured by the clamping plate, the handle is rotated to open the piston ring along the arc of the guide rail, ensuring that the piston is not over-opened and affects the piston ring performance. This facilitates reliable installation of the piston ring into the piston ring groove. The guide rail is arc-shaped, similar to the shape of the piston ring after it is opened, ensuring that the piston ring is opened along the arc direction. Clamping blocks in the clamping plates arranged symmetrically on both sides lock the piston ring at the opening, restricting the piston ring from contracting in the closing direction. The clamping grooves in the clamping plates limit the opening angle of the piston ring. Fixed bends are designed according to the appropriate opening angle of the piston ring to ensure ease of use. This results in a simple structure, small size, and light weight for piston ring installation, which can be completed with one hand. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the handle and its connection structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the separation structure of the handle and the connecting seat of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the cam plate and the guide rod of this utility model.

[0023] In the diagram: 1. Guide rail; 2. Clamping plate; 3. Handle; 4. Connecting seat; 5. Cam plate; 6. Guide rod; 7. Clamping pin; 8. Compression spring; 9. Return spring; 10. Clamping head; 11. Outer connecting plate; 12. Clamping slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a technical solution: a caliper for removing and installing piston rings in a diesel engine, comprising: (see details) Figure 1 The guide rail 1 and the card plates 2 are located on both sides of the center position of the front and back of the guide rail 1, and the guide rail 1 and the card plates 2 are movably connected.

[0026] Handle 3 is located directly below the bottom inner end of clamping plate 2, and clamping plate 2 is movably connected to handle 3. Guide rail 1 is arc-shaped, similar to the shape of the piston ring after it is opened, ensuring the piston ring opens along the arc direction. Clamping blocks in clamping plates 2, symmetrically arranged on both sides, hold the piston ring at the opening, restricting the piston ring from contracting in the closing direction. The clamping grooves 12 in clamping plate 2 limit the opening angle of the piston ring. A fixed bend is designed according to the appropriate opening angle of the piston ring to ensure ease of use. After the piston ring is fixed by clamping plate 2, rotating handle 3 opens the piston ring along the arc direction of guide rail 1, ensuring that the piston does not over-open and affect piston ring performance, facilitating reliable installation of the piston ring into the piston ring groove. This results in a simple structure, small size, and light weight for piston ring installation, allowing for one-handed operation.

[0027] Please see Figure 2 A connecting seat 4 is installed at the center of the top of the handle 3. The connecting seat 4 has a U-shaped design and is movably connected to the card plate 2. The handle 3 is connected to the card plate 2 through the connecting seat 4.

[0028] Please see Figure 4 A cam plate 5 is added to the upper part of the center position on both sides of the connecting seat 4, and the cam plate 5 is rotatably connected to the two sides of the connecting seat 4. The cam plate 5 is designed to be lighter at the top and heavier at the bottom. The cam plate 5 can rotate on the connecting seat 4, and the cam plate 5 can be connected to the corresponding structure. A guide rod 6 is added to the back of the cam plate 5, and the guide rod 6 is connected to the connecting seat 4. A locking pin 7 is sleeved at the front end of the guide rod 6, and a compression spring 8 is sleeved at the rear end of the guide rod 6. The compression spring 8 fits against the locking pin 7. The compression spring 8 can drive the locking pin 7 to move along the surface of the guide rod 6, and after the cam plate 5 rotates to the moving angle, the locking pin 7 is inserted into the interior of the cam plate 5, thereby ensuring the stability of the cam plate 5 after rotation.

[0029] Please see Figure 3 A locking head 10 is added to the upper center of both sides of the handle 3, and the locking head 10 extends inward through the outer wall of the handle 3. A return spring 9 is added to the inner end of the locking head 10. When the top of the handle 3 is inserted into the inner cavity of the connecting seat 4, the locking head 10 extends outward along the inner wall of the connecting seat 4 under the action of the return spring 9. An outer connecting plate 11 is installed at the center of the outer side of the locking head 10. The outer connecting plate 11 is circular in design. A slot 12 is opened downward at the top center of the outer connecting plate 11, and the slot 12 corresponds to the cam plate 5. After the locking head 10 moves the outer connecting plate 11 to the outside of the connecting seat 4, the cam plate 5 rotates into the slot 12 under its own weight, so that the cam plate 5 connects with the outer connecting plate 11. This not only ensures the stability of the connection between the handle 3 and the connecting seat 4, but also facilitates the disassembly and assembly of the handle 3 and the connecting seat 4.

[0030] This design: The guide rail 1 is arc-shaped, similar to the shape of the piston ring after it is opened, ensuring that the piston ring opens along the arc direction. The locking blocks in the symmetrically arranged locking plates 2 on both sides are used to lock the piston ring opening, restricting the piston ring from contracting in the closing direction. The locking grooves 12 in the locking plates 2 limit the opening angle of the piston ring. A fixed bend is designed according to the appropriate opening angle of the piston ring to ensure ease of use. After the piston ring is fixed by the locking plates 2, the handle 3 is rotated to open the piston ring along the arc direction of the guide rail 1, ensuring that the piston does not over-open and affect the piston ring performance, facilitating reliable installation of the piston ring into the piston ring groove. The handle 3 is connected to the card plate 2 through the connecting seat 4. When the top of the handle 3 is inserted into the inner cavity of the connecting seat 4, the card head 10 drives the outer connecting plate 11 to move to the outside of the connecting seat 4. Under its own weight, the cam plate 5 rotates into the inside of the card slot 12, so that the cam plate 5 is connected to the outer connecting plate 11. The compression spring 8 can drive the card post 7 to move along the surface of the guide rod 6. After the cam plate 5 rotates to the moving angle, the card post 7 is inserted into the inside of the cam plate 5.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piston ring dismounting caliper for diesel engines, characterized in that, Include: Guide rail (1), and the card board (2) arranged in the center position of the front and back of the guide rail (1) two sides, and the movable connection between the guide rail (1) and the card board (2); Handle (3), arranged in the bottom of the inner end of the card board (2) below, and the movable connection between the card board (2) and the handle (3).

2. A piston ring dismounting clamp for diesel engine according to claim 1, characterized in that: The top end center position of the handle (3) is provided with a connecting seat (4), and the connecting seat (4) is designed as a whole U shape, and the connecting seat (4) is movably connected with the card board (2).

3. A piston ring removal and installation clamp for a diesel engine as set forth in claim 2, wherein: The upper part of the both sides of the connecting seat (4) is provided with a cam plate (5), and the cam plate (5) is rotatably connected with the both sides of the connecting seat (4), and the cam plate (5) is designed as light on top and heavy on bottom.

4. The piston ring dismounting clamp for diesel engine as claimed in claim 3 wherein: The back of the cam plate (5) is provided with a guide rod (6), and the guide rod (6) is connected with the connecting seat (4), the front end of the guide rod (6) is provided with a clamping column (7), and the rear end of the guide rod (6) is provided with an extrusion spring (8), and the extrusion spring (8) is matched with the clamping column (7).

5. A piston ring removal and installation clamp for a diesel engine as set forth in claim 4, wherein: The both sides of the upper center position of the handle (3) are provided with a clamping head (10), and the clamping head (10) extends inwardly through the outer wall of the handle (3), and the inner end of the clamping head (10) is provided with a reset spring (9).

6. A piston ring removal and installation clamp for a diesel engine as set forth in claim 5, wherein: The outer side of the clamping head (10) is provided with an outer connecting plate (11), and the outer connecting plate (11) is designed as a whole circle, the top center of the outer connecting plate (11) is provided with a clamping groove (12) downward, and the clamping groove (12) corresponds to the cam plate (5).

Images