Calipers for disassembling and assembling piston ring of diesel engine

Abstract

The invention relates to the technical field of diesel engine assembly, and discloses calipers for disassembling and assembling a piston ring of a diesel engine, the calipers comprise a handle, a clamping plate and a guide rail, the upper end of the handle is connected with a first connecting piece, one side of the handle is provided with a second connecting piece, the clamping plate is provided with a limiting sliding groove, and the two sides of the guide rail are provided with limiting bolts; the handle lie is slidably sleeved with a sliding sleeve, a hydraulic rod is installed on the bottom side of the sliding sleeve, and the bottom of the hydraulic rod is slidably sleeved with a positioning rod. According to the design, the special calipers are composed of the guide rail, the clamping plate, the handle and the like, 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 guaranteed that the performance of the piston ring is not influenced by excessive expansion of the piston, the piston ring is conveniently and reliably installed on a piston ring groove, and due to the fact that the special calipers are simple in structure and light in weight, operation can be completed by one person.

Description

Technical Field

[0001] The invention relates to the technical field of diesel engine assembly, in particular to a caliper used for disassembling and assembling a piston ring of a diesel engine. Background Art

[0002] During the diesel engine assembly process, whether the piston ring is installed normally is an important factor in ensuring that the diesel engine piston ring and cylinder liner can be used normally. By using a special caliper to expand and install the piston ring at a limited angle, the installation state of the piston ring can be effectively guaranteed. Generally, in order to ensure the reliable installation of the piston ring, the piston ring is rounded by an annular support ring and then installed in the piston ring groove. The tool is large in size and heavy in weight and needs to be used with both hands, so two people are often required for installation. Therefore, those skilled in the art provide a caliper for disassembly and assembly of diesel engine piston rings to solve the problems raised in the above background technology. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies of the prior art, the present invention provides a caliper for disassembling and assembling a piston ring of a diesel engine to solve the problems raised in the above background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a caliper for disassembling and assembling a piston ring of a diesel engine, comprising a handle, a clamping plate and a guide rail, wherein the upper end of the handle is connected to a first connecting piece, a second connecting piece is installed on one side of the handle, a limiting slide groove is provided on the clamping plate, limiting bolts are installed on both sides of the guide rail, a sliding sleeve is slidably connected to the handle, a hydraulic rod is installed on the bottom side of the sliding sleeve, and a positioning rod is slidably connected to the bottom of the hydraulic rod.

[0007] Preferably, the guide rail is slidably engaged with the limiting sliding groove on the clamping plate through a limiting bolt.

[0008] Preferably, the guide rail is in the shape of an arc, similar to the shape of the piston ring after it is expanded, ensuring that the piston ring is expanded along the arc direction, and the blocks in the clamping plates symmetrically arranged on both sides are clamped at the opening of the piston ring to limit the piston ring from shrinking in the closing direction, and the opening angle of the piston ring is limited by the groove in the clamping plate, according to the appropriate opening angle of the piston ring.

[0009] Preferably, the two handles are rotatably connected via a first connecting member, and the top of the handle is rotatably connected to the clamping plate via a second connecting member.

[0010] Preferably, a movable groove is provided at the tail end of the handle, and both ends of the positioning rod are slidably connected to the handle through the movable groove. Limiting balls are installed at both ends of the positioning rod, and the sliding sleeve is moved by the extension and retraction of the hydraulic rod, thereby driving the tail ends of the two handles to contract, so that the upper part of the handle is expanded, thereby improving the convenience of using the caliper.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the present invention provides a caliper for disassembling and assembling a piston ring of a diesel engine, which has the following beneficial effects:

[0013] Through design, this special caliper consists of guide rails, clamping plates, handles, etc. After the piston ring is fixed by the clamping plate, the handle is turned to stretch the piston ring along the arc direction of the guide rail, and ensure that the piston is not stretched too much to affect the performance of the piston ring, so that the piston ring can be reliably installed on the piston ring groove. Due to its simple structure and light weight, the operation can be completed by one person. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of a caliper for disassembling and assembling a piston ring of a diesel engine provided in an embodiment of the present application.

[0015] Figure 2 It is a structural explosion diagram of a caliper for disassembling and assembling a piston ring of a diesel engine provided in an embodiment of the present application.

[0016] Figure 3 It is a schematic structural diagram of a sliding sleeve in a caliper for disassembling and assembling a piston ring of a diesel engine provided in an embodiment of the present application.

[0017] In the figure: 1, handle; 101, first connecting member; 102, second connecting member; 103, movable groove; 2, clamping plate; 201, limiting slide groove; 3, guide rail; 301, limiting bolt; 4, sliding sleeve; 5, hydraulic rod; 6, positioning rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The present invention provides a technical solution, a caliper for disassembling and assembling a piston ring of a diesel engine, see Figure 1 , Figure 2, including a handle 1, a card plate 2 and a guide rail 3, the upper end of the handle 1 is connected to a first connecting member 101, a second connecting member 102 is installed on one side of the handle 1, a limited sliding groove 201 is provided on the card plate 2, and limited bolts 301 are installed on both sides of the guide rail 3, the handle 1 is slidably sleeved with a sliding sleeve 4, a hydraulic rod 5 is installed on the bottom side of the sliding sleeve 4, and a positioning rod 6 is slidably sleeved at the bottom of the hydraulic rod 5, and the guide rail 3 is slidably clamped with the limited sliding groove 201 on the card plate 2 through the limit bolt 301, and the guide rail 3 is in an arc shape, which is similar to the shape of the piston ring after being stretched, so as to ensure that the piston ring is stretched along the arc direction, and the clamping blocks in the card plate 2 arranged symmetrically on both sides are clamped at the opening of the piston ring to limit the contraction of the piston ring in the closing direction, and the clamping groove in the card plate 2 is used to limit the stretching angle of the piston ring, according to the appropriate stretching angle of the piston ring;

[0020] See also Figure 2 , Figure 3 The two handles 1 are rotatably connected via a first connecting piece 101, and the top of the handle 1 is rotatably connected to the clamping plate 2 via a second connecting piece 102. A movable groove 103 is provided at the tail end of the handle 1, and both ends of the positioning rod 6 are slidably sleeved with the handle 1 via the movable groove 103. Limiting spheres are installed at both ends of the positioning rod 6. The sliding sleeve 4 is moved by the extension and retraction of the hydraulic rod 5, thereby driving the tail ends of the two handles 1 to contract, so that the upper part of the handle 1 is expanded, thereby improving the convenience of using the caliper.

[0021] The utility model is composed of a guide rail 3, a clamping plate 2, a handle 1, etc.

[0022] After the piston ring is fixed by the clamping plate, the piston ring is opened along the arc direction of the guide rail 3 by rotating the handle 1, and it is ensured that the piston is not opened too much to affect the performance of the piston ring, so that the piston ring can be reliably installed on the piston ring groove. The guide rail 3 is in an arc shape, which is similar to the shape of the piston ring after opening, so that the piston ring is opened along the arc direction. The clamping blocks in the clamping plates 2 arranged symmetrically on both sides are clamped at the opening of the piston ring to limit the contraction of the piston ring in the closing direction, and the clamping angle of the piston ring is limited by the clamping groove in the clamping plate 2. According to the appropriate opening angle of the piston ring, a fixed bend is designed to ensure convenient use. The caliper can be operated with one hand due to its simple structure and light weight.

[0023] A sliding sleeve 4 is also provided at the handle 1, and the sliding sleeve 4 sleeves the two handles 1 therein, and a hydraulic rod 5 is installed at the bottom of the sliding sleeve 4, and a positioning rod 6 is slidably sleeved at the lower end of the hydraulic rod 5, and both ends of the positioning rod 6 are slidably sleeved with the movable groove 103 on the handle 4, and balls are installed at both ends of the positioning rod 6 to prevent the positioning rod 6 from being separated from the limit of the movable groove 103. The sliding sleeve 4 is moved by the extension and retraction of the hydraulic rod 5, thereby driving the tail ends of the two handles 1 to shrink, so that the upper part of the handle 1 is expanded, thereby improving the convenience of using the caliper.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] In this document, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A caliper for disassembling and assembling a piston ring of a diesel engine, comprising a handle (1), a clamping plate (2) and a guide rail (3), characterized in that: The upper end of the handle (1) is connected to a first connecting member (101), a second connecting member (102) is installed on one side of the handle (1), a limiting sliding groove (201) is provided on the clamping plate (2), and limiting bolts (301) are installed on both sides of the guide rail (3), the handle (1) is slidably sleeved with a sliding sleeve (4), a hydraulic rod (5) is installed on the bottom side of the sliding sleeve (4), and a positioning rod (6) is slidably sleeved at the bottom of the hydraulic rod (5).

2. A caliper for disassembling and assembling a piston ring of a diesel engine according to claim 1, characterized in that: The rear end of the handle (1) is provided with a movable groove (103), and the two ends of the positioning rod (6) are slidably connected to the handle (1) through the movable groove (103), and the two ends of the positioning rod (6) are installed with limiting spheres.

3. The caliper for disassembling and assembling a piston ring of a diesel engine according to claim 1, characterized in that: The two handles (1) are rotatably connected via a first connecting member (101), and the top of the handle (1) is rotatably connected to the clamping plate (2) via a second connecting member (102).

4. The caliper for disassembling and assembling a piston ring of a diesel engine according to claim 1, characterized in that: The guide rail (3) is slidably engaged with the limiting sliding groove (201) on the clamping plate (2) via the limiting bolt (301).

5. The caliper for disassembling and assembling a piston ring of a diesel engine according to claim 1, characterized in that: The guide rail (3) is in an arc shape, similar to the shape of the piston ring after being expanded, ensuring that the piston ring is expanded along the arc direction.

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