A device for overhaul and adjustment of a diesel engine crankshaft

Abstract

The present invention belongs to the technical field of automobiles and discloses a device for overhaul and adjustment of a diesel engine crankshaft, which includes moving wheels (1), a bearing support (2), distance-adjusting slide rails (3), arc-shaped shaft clamps (4), shaft positioning wheels (5) and rail fixing clamps (6); moving wheels (1) are installed on the four legs of the bearing support (2); two open and parallel guide rails are designed on the top surface of the bearing support (2), and a plurality of distance-adjusting slide rails (3) are slidably connected to the guide rails; the distance-adjusting slide rails (3) are fixed to the bearing support (2) through rail fixing clamps (6); the lower end of the arc-shaped shaft clamp (4) is tightly connected to the distance-adjusting slide rail (3), and two shaft positioning wheels (5) are arranged at the upper end thereof. The present invention can conveniently and quickly fix the crankshaft, adapt to the switching of operation stations, facilitate the free rotation of the crankshaft required by the operation, and at the same time facilitate the cleaning operation and the treatment of generated dirt.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and in particular relates to a device for inspecting and adjusting a crankshaft of a diesel engine. Background Art

[0002] The crankshaft is an important part of the automobile engine that generates continuous power by reciprocating pistons. It bears the force transmitted by the connecting rod, converts it into torque through its output and drives the work of the action system. Therefore, the crankshaft plays a vital role in the normal operation of the engine.

[0003] Whether it is manufacturing, product verification or overhaul maintenance, the crankshaft needs to carry out relevant quality inspection and maintenance. This process usually involves crankshaft circumferential rotation, station flow, shovel and hoist installation, etc., which requires the crankshaft to be in a relatively free and convenient space. Usually, the crankshaft is suspended by a trolley or crane, or supported on a bracket, and inspected by equipment, instruments or manual methods. Because some parts are in contact with the support surface and compacted, it is difficult to operate, and the crankshaft transfer also requires the help of large equipment, which is very inconvenient.

[0004] In addition, during the disassembly and identification process of the entire engine, the disassembled components need to be placed in a suspended state for oil treatment and cleaning. Generally, the waste liquid generated by the treatment will enter the ditch and then enter the centralized treatment pool through the channel.

[0005] Based on the above-mentioned inspection, maintenance, and processing requirements, it is necessary to design a device for inspecting and adjusting the crankshaft of a diesel engine to ensure that the crankshaft is in a relatively free space without interference, so as to better handle the crankshaft in all aspects. Summary of the invention

[0006] The purpose of the present invention is to provide a device for inspecting and adjusting the crankshaft of a diesel engine, so as to solve the technical problem that the crankshaft is placed in a suspended state by a trolley or a crane, or supported on a bracket, and inspected by equipment, instruments or manual methods. Since some parts are compacted and contacted with the supporting surface, it is difficult to operate, and the crankshaft transportation also requires the use of large equipment, which is very inconvenient.

[0007] To achieve the above-mentioned purpose, the specific technical scheme of the device for inspecting and adjusting the crankshaft of a diesel engine of the present invention is as follows:

[0008] A device for overhaul and adjustment of a diesel engine crankshaft, comprising a moving wheel 1, a load-bearing bracket 2, a distance-adjusting slide rail 3, an arc-shaped shaft clamp 4, a shaft positioning wheel 5 and a rail fixing clamp 6; moving wheels 1 are installed on the four legs of the load-bearing bracket 2; two open and parallel guide rails are designed on the top surface of the load-bearing bracket 2, and a plurality of distance-adjusting slide rails 3 are slidably connected to the guide rails; the distance-adjusting slide rails 3 are fixed on the load-bearing bracket 2 through the rail fixing clamps 6; the lower end of the arc-shaped shaft clamp 4 is tightly connected to the distance-adjusting slide rail 3, and two shaft positioning wheels 5 are arranged at the upper end thereof.

[0009] Wherein, the shaft positioning wheel 5 is arranged at the top of the arc-shaped shaft clamp 4 through a rotating shaft.

[0010] Wherein, the distance-adjusting slide rail 3 adopts a "channel" shape structure, the bottom of the slide rail is embedded in the guide rail groove of the load-bearing bracket 2, and it can move bidirectionally along the rail direction.

[0011] Wherein, the rail fixing clamp 6 adopts a split structure, including a clamping strip 6-1, a fixing rod 6-2 and a special-shaped limiting clamp 6-3; the clamping strip 6-1 has a concave structure, the middle concave part matches the side surface of the slide rail beam of the load-bearing bracket 2, and a threaded mounting hole is designed on one side thereof; the main body of the special-shaped limiting clamp 6-3 is a vertically arranged flat plate, the bottom edge thereof is provided with an inward protrusion, a threaded hole is provided in the upper left corner thereof, an arm extending inward is provided in the upper right corner thereof, and the distance between the threaded hole and the arm is the same as the thickness of the lower end of the arc-shaped shaft clamp 4; the clamping strip 6-1 and the inner side of the special-shaped limiting clamp 6-3 are arranged oppositely, and the two are fixedly connected through the fixing rod 6-2, and both ends of the fixing rod 6-2 are provided with threads, which are matched with the threaded holes on the above two components.

[0012] Wherein, the upper part of the arc-shaped shaft clamp 4 is an arc-shaped hollow structure, and vertical and arc-shaped grooves are symmetrically distributed on both sides of the arc center line of the arc-shaped shaft clamp 4, which can be used for the support and positioning of the shaft of the shaft positioning wheel 5, and the shaft positioning wheel 5 is placed in the upper part of the arc-shaped shaft clamp 4 in the hollow structure.

[0013] Wherein, the shaft positioning wheels 5 appear in pairs and are paired with the distance-adjusting slide rails 3. During use, they are respectively installed at the same positions on both sides of the arc center line of the arc-shaped shaft clamp 4. The shaft positioning wheels 5 contact the main journal surface of the crankshaft in a dotted line manner, and the crankshaft is supported and fixed by gravity.

[0014] Wherein, the clamping strip 6-1 and the special-shaped limiting clamp 6-3 are clamped on both sides of the guide rail beam of the load-bearing bracket 2 to prevent up and down movement, and are fixed in a threaded manner after the clamping installation to limit the position of the distance-adjusting slide rail 3.

[0015] The device for overhaul and adjustment of a diesel engine crankshaft of the present invention has the following advantages:

[0016] (1) The load-bearing bracket is installed with moving wheels, which can be moved according to the needs of the work station and can also be limited and fixed;

[0017] (2) The top surface of the load-bearing bracket is provided with parallel sliding rails, and different numbers of distance-adjustable sliding rails can be arranged according to the crankshaft main journals to be supported. The distance-adjustable sliding rails can be moved and adjusted along the rail direction.

[0018] (3) The arc-shaped shaft clamp has a vertical distribution of arc-shaped structures and arc-shaped grooves, and can be applied to crankshafts with main journals of different diameters.

[0019] (4) The crankshaft is supported and fixed by the shaft positioning wheel in a point-line contact manner, which is more stable. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the device for overhauling and adjusting the diesel engine crankshaft of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the arc-shaped shaft clamp;

[0022] Figure 3 It is a schematic structural diagram of the rail fixing clamp. Detailed Embodiment

[0023] In order to better understand the purpose, structure and function of the present invention, the following further describes in detail a device for overhauling and adjusting the diesel engine crankshaft of the present invention with reference to the drawings.

[0024] As Figure 1 shown, the device for overhauling and adjusting the diesel engine crankshaft of the present invention includes a moving wheel 1, a load-bearing bracket 2, a distance-adjustable sliding rail 3, an arc-shaped shaft clamp 4, a shaft positioning wheel 5 and a rail fixing clamp 6.

[0025] The four legs of the load-bearing bracket 2 are installed with moving wheels 1, which can be moved or limited and fixed according to needs. The bracket adopts a metal frame and is provided with a structure for support reinforcement and strengthening.

[0026] The top surface of the load-bearing bracket 2 is designed with two open and parallel guide rails, on which different numbers of distance-adjustable sliding rails 3 can be arranged, and at the same time, it is convenient to adjust the distance between the distance-adjustable sliding rails 3.

[0027] The distance-adjustable sliding rail 3 adopts a "channel" - shaped structure. The bottom of the sliding rail is embedded in the guide rail groove of the load-bearing bracket 2 and can move bidirectionally along the rail direction. After the position is determined, it is fixed by the rail fixing clamp 6.

[0028] As Figure 3 shown, the rail fixing clamp 6 adopts a split structure and is composed of a clamping strip 6-1, a fixing rod 6-2 and a special-shaped limiting clamp 6-3;

[0029] The clamping strip 6-1 has a concave structure, and the middle concave part matches the side surface of the sliding rail beam of the load-bearing bracket 2. One side of it is designed with a threaded mounting hole;

[0030] The main body of the special-shaped limit clip 6-3 is a vertically arranged flat plate, with an inward protrusion at its bottom edge, a threaded hole at its upper left corner, and an arm extending inward at its upper right corner. The distance between the threaded hole and the arm is the same as the thickness of the lower end of the arc-shaped shaft clamp 4.

[0031] The clamping strip 6-1 is arranged opposite to the inner side of the special-shaped limit clip 6-3, and the two are fixedly connected through a fixing rod 6-2. Both ends of the fixing rod 6-2 are provided with threads, which are matched with the threaded holes on the above two components.

[0032] The clamping strip 6-1 and the special-shaped limit clip 6-3 are clamped on both sides of the guide beam of the bearing support 2 to prevent upward and downward movement. After the clamping installation is completed, it is fixed in a threaded manner to limit the position of the adjustable distance slide rail 3.

[0033] As Figure 2 shown, the lower end of the arc-shaped shaft clamp 4 is tightly connected to the adjustable distance slide rail 3. The upper part of the arc-shaped shaft clamp 4 has a hollow structure. Vertical and arc-shaped grooves are symmetrically distributed on both sides of the center line of the arc of the arc-shaped shaft clamp 4, which can be used for the support and clamping of the shaft of the shaft positioning wheel 5. The shaft positioning wheel 5 is placed in the upper part of the arc-shaped shaft clamp 4 with a hollow structure.

[0034] The shaft positioning wheels 5 appear in pairs and are paired with the adjustable distance slide rail 3. When in use, they are respectively installed at the same positions on both sides of the arc center line of the arc-shaped shaft clamp 4. The shaft positioning wheels 5 are in point-line contact with the crankshaft main journal surface, and the crankshaft is supported and fixed by gravity.

[0035] When in use, the engine crankshaft is placed on the shaft positioning wheels 5 with the main journal curved surface as the support position, and the shaft positioning wheels 5 achieve support in a point-line contact manner; when moving the work station, loosen the limit structure of the moving wheel 1, move to the specified position, and limit and fix it; when overhauling and adjusting, the crankshaft and the shaft positioning wheels 5 roll simultaneously without hindrance to achieve rotation; when placing crankshafts with different diameters of main journals, the position of the shaft positioning wheels 5 on the arc-shaped shaft clamp 4 can be adjusted, thus achieving support.

[0036] The present invention can conveniently and quickly fix the crankshaft, adapt to the switching of operating work stations, facilitate the free rotation of the crankshaft required for operation, and at the same time facilitate the cleaning operation and the treatment of generated dirt.

[0037] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, for those skilled in the art, without departing from the principle of the present invention, several deformations and improvements can still be made, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. A device for overhaul and adjustment of a diesel engine crankshaft, characterized in that, It includes moving wheels (1), load-bearing brackets (2), distance-adjusting sliding rails (3), arc-shaped shaft clamps (4), shaft positioning wheels (5) and rail fixing clamps (6); moving wheels (1) are installed on the four legs of the load-bearing bracket (2); two open and parallel guide rails are designed on the top surface of the load-bearing bracket (2), and several distance-adjusting sliding rails (3) are slidably connected to the guide rails; the distance-adjusting sliding rails (3) are fixed on the load-bearing bracket (2) through rail fixing clamps (6); the lower end of the arc-shaped shaft clamp (4) is tightly connected to the distance-adjusting sliding rail (3), and two shaft positioning wheels (5) are arranged at its upper end; The rail fixing clamp (6) adopts a split structure, including a clamping strip (6-1), a fixing rod (6-2) and a special-shaped limiting clamp (6-3); the clamping strip (6-1) is in a concave structure, and the middle concave part matches the side surface of the sliding rail beam of the load-bearing bracket (2), and a threaded mounting hole is designed on one side thereof; the main body of the special-shaped limiting clamp (6-3) is a vertically arranged flat plate, with an inward protrusion at its bottom edge, a threaded hole at its upper left corner, and an arm extending inward at its upper right corner, and the distance between the threaded hole and the arm is the same as the thickness of the lower end of the arc-shaped shaft clamp (4); the clamping strip (6-1) and the inner side of the special-shaped limiting clamp (6-3) are arranged opposite to each other, and the two are fixedly connected through the fixing rod (6-2), and both ends of the fixing rod (6-2) are provided with threads, which cooperate with the threaded holes on the above two components.

2. The device for overhaul and adjustment of a diesel engine crankshaft according to claim 1, characterized in that, The shaft positioning wheel (5) is arranged at the top of the arc-shaped shaft clamp (4) through a rotating shaft.

3. The device for overhaul and adjustment of a diesel engine crankshaft according to claim 1, characterized in that, The distance-adjusting sliding rail (3) adopts a "ji" shape structure, and the bottom of the sliding rail is embedded in the guide rail groove of the load-bearing bracket (2) and can move bidirectionally along the rail direction.

4. The device for overhaul and adjustment of a diesel engine crankshaft according to claim 1, characterized in that, The upper part of the arc-shaped shaft clamp (4) is a circular arc-shaped hollow structure. Vertical and arc-shaped grooves are symmetrically distributed on both sides of the center line of the arc of the arc-shaped shaft clamp (4), which can be used for the support and positioning of the shaft of the shaft positioning wheel (5), and the shaft positioning wheel (5) is placed in the upper part of the hollow structure of the arc-shaped shaft clamp (4).

5. The device for overhaul and adjustment of a diesel engine crankshaft according to claim 4, characterized in that, The shaft positioning wheels (5) appear in pairs and are paired with the distance-adjusting sliding rails (3). When in use, they are respectively installed at the same positions on both sides of the arc center line of the arc-shaped shaft clamp (4). The shaft positioning wheels (5) are in point-line contact with the main journal surface of the crankshaft, and the crankshaft is supported and fixed by gravity.

6. The device for overhaul and adjustment of a diesel engine crankshaft according to claim 4, characterized in that, The clamping strip (6-1) and the special-shaped limiting clamp (6-3) are clamped on both sides of the guide rail beam of the load-bearing bracket (2) to prevent upward and downward movement. After the positioning installation is completed, it is fixed in a threaded manner to limit the position of the distance-adjusting sliding rail (3).

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