Crankshaft assembling tool used when machine body is laterally arranged

Abstract

The utility model provides a crankshaft assembling tool used when a machine body is laterally arranged, and belongs to the technical field of diesel engine installation. The crankshaft assembling tool is suitable for installing a crankshaft assembly when an engine body is laterally arranged, and the crankshaft assembling tool is installed at a head-gear main bearing and a tail-gear main bearing of the engine body; the crankshaft assembling tool comprises a crankshaft supporting plate assembly, a height adjusting rod assembly, an anti-falling plate assembly and a connecting and fixing rod assembly, and the crankshaft supporting plate assembly is placed at the mounting position of a main bearing of an engine body and connected with the engine body through the connecting and fixing rod assembly. The lower portion of the crankshaft supporting plate assembly is supported through the height adjusting rod assembly, the height is adjusted, the crankshaft supporting plate assembly is adjusted to be in a horizontal state, and the anti-falling plate assembly is installed at the tail of the upper portion of the crankshaft supporting plate assembly. The crankshaft assembling device is used for assembling the crankshaft in the state that a machine body is laterally arranged, the crankshaft can be stably and reliably assembled, the risk of collision of the crankshaft is reduced, and the assembling quality is improved; and single-person operation can be realized, so that the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to diesel engine installation technical field, specifically relates to a crankshaft assembly tool for when the body is placed on the side. BACKGROUND

[0002] The crankshaft is an important component of the engine, which bears the force transmitted by the connecting rod and converts it into torque. The crankshaft is generally installed in the machining round hole formed by the assembly of the body and the bearing cover, and the bearing bush is installed between the crankshaft and the body and the bearing cover to reduce wear. The assembly of the crankshaft can be divided into normal assembly, inverted assembly and side assembly according to the placement position of the body. The side assembly of the crankshaft is a common state in the maintenance of the diesel engine. In the assembly process, the body is placed on the side, the upper half bearing bush is installed, the crankshaft is installed in the installation hole, and the bearing cover and the lower half bearing bush are assembled and fastened according to the requirements.

[0003] Under the condition that the body is placed on the side, the position is not easy to control in the assembly process of the crankshaft, and there are two methods for installing the crankshaft. One way is to use lifting equipment to control the crankshaft to be installed in the appropriate position and then install the bearing cover and fix it. The manual control of the crankshaft lifting process has the risk of bumping the crankshaft, and it needs to be completed by multiple people, which is high in labor cost. The other way is to complete it by a mechanical arm cooperating with a visual sensing system. The assembly process is complex, and the equipment investment cost is high. Therefore, it is necessary to improve. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem: provide a kind of crankshaft assembly tool for when the body is placed on the side, the utility model is used to realize the assembly of crankshaft under the condition that the body is placed on the side, can realize that crankshaft is installed smoothly and reliably, reduces the risk of bumping the crankshaft, improves assembly quality;And single-person operation can reduce labor cost.

[0005] To achieve the above object, the utility model adopts the technical scheme of:

[0006] The crankshaft assembly tool is suitable for the installation of the crankshaft assembly when the engine body is placed on the side, and the crankshaft assembly tool is installed at the first and last two main bearings of the engine body;

[0007] The crankshaft assembly tool includes a crankshaft support plate assembly, a height adjusting rod assembly, a fall-preventing plate assembly and a connecting fixed rod assembly. The crankshaft support plate assembly is placed at the main bearing installation position of the engine body, and is connected to the engine body through the connecting fixed rod assembly. The lower part of the crankshaft support plate assembly is supported and the height is adjusted through the height adjusting rod assembly, and the crankshaft support plate assembly is adjusted to a horizontal state. The fall-preventing plate assembly is installed above the tail part of the crankshaft support plate assembly.

[0008] Further, the crankshaft support plate assembly comprises a support plate, a positioning bolt and a collision-preventing pad I; the upper surface of the support plate is covered with the collision-preventing pad I, and the positioning bolt is used for fixing the support plate to the engine body or the main bearing bolt.

[0009] Further, the collision-preventing pad I is made of nylon or other soft material.

[0010] Further, the height-adjusting rod assembly comprises a support leg, a threaded height-adjusting rod and an adjusting support nut; the support leg is vertically placed on the ground; the lower end of the threaded height-adjusting rod is screwed with the upper end of the support leg; the threaded height-adjusting rod is connected to the crankshaft support plate assembly through the adjusting support nut; and the threaded height-adjusting rod is adjusted according to the height of the main bearing hole of the engine body so that the placing surface of the crankshaft support plate assembly is adjusted to be horizontal.

[0011] Further, the anti-falling plate assembly comprises an anti-falling plate and a collision-preventing pad II; the anti-falling plate is in the form of an inclined plate; the collision-preventing pad II is fixed on the anti-falling plate and the surface of the anti-falling plate in contact with the crankshaft through a bolt; and the anti-falling plate is fixed on the upper surface of the tail of the crankshaft support plate assembly through a bolt.

[0012] Further, the connecting and fixing rod assembly comprises a threaded connecting rod and a spacer; the front end of the threaded connecting rod is a threaded rod, and the rear end of the threaded connecting rod is welded with a stopper; the threaded connecting rod is connected to the main bearing bolt of the engine through the crankshaft support plate assembly so as to avoid the tool from being separated from the engine body; and the spacer is worn on the threaded connecting rod to adjust the length of the threaded connecting rod.

[0013] Compared with the prior art, the present application has the following advantages:

[0014] 1. The present application can realize the assembly of the crankshaft in the side-lying state of the engine body, can realize the accurate positioning of the crankshaft, effectively avoids the collision of the crankshaft, and improves the assembly quality of the bearing bush; and the operation process is simple, the tool structure is simple, and the operation is convenient.

[0015] 2. The height of the present application can be adjusted, the crankshaft is smoothly pushed in, and the impact on the bearing bush is reduced.

[0016] 3. The crankshaft anti-falling plate assembly is arranged in the present application, the accidental rolling of the crankshaft is avoided, and the operation safety is improved.

[0017] 4. The present application realizes the single-person assembly operation of the crankshaft, effectively saves the labor cost, has low cost, simple and convenient operation method, and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structural schematic view of the present application.

[0019] Figure 2 For the A-A structure diagram in the utility model Figure 1 ;

[0020] Figure 3 For the F structure diagram in the utility model Figure 1 ;

[0021] Figure 4 For the structure diagram when the utility model is used. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0024] It should be noted that in this paper, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations. The element defined by the sentence "including a..." does not exclude the presence of another identical element in the process, method, article or device including the element.

[0025] Please refer to Figures 1-4 for detailed description of the embodiments of the utility model.

[0026] Embodiment: the crankshaft assembly tool for the side placement of the machine body, referring to Figure 1 , the crankshaft assembly tool is suitable for the installation of the crankshaft assembly 3 when the engine machine body 1 is placed on the side, and the crankshaft assembly tool is installed at the first and last two main bearings of the engine machine body 1;

[0027] The crankshaft assembling tool comprises a crankshaft support plate assembly 4, a height adjusting rod assembly 5, a falling prevention plate assembly 6 and a connecting fixing rod assembly 7, the crankshaft support plate assembly 4 is placed at the main bearing installation position of the engine body 1, the crankshaft support plate assembly 4 is connected with the engine body 1 through the connecting fixing rod assembly 7, the crankshaft support plate assembly 4 is supported and height-adjusted through the height adjusting rod assembly 5 at the lower part of the crankshaft support plate assembly 4 and is adjusted to a horizontal state, and the falling prevention plate assembly 6 is installed at the tail part above the crankshaft support plate assembly 4.

[0028] In a specific embodiment, referring to Figure 1 As shown, the crankshaft support plate assembly 4 comprises a support plate 4-1, a positioning bolt 4-2 and a collision prevention pad I 4-3, the upper surface of the support plate 4-1 is covered with the collision prevention pad I 4-3, and the positioning bolt 4-2 fixes the support plate 4-1 on the engine body 1 or the main bearing bolt 2.

[0029] Preferably, the material of the collision prevention pad I 4-3 is nylon or other soft material, so as to avoid damage of the crankshaft caused by collision.

[0030] In a specific embodiment, referring to Figure 1 As shown, the height adjusting rod assembly 5 comprises a supporting leg 5-1, a threaded height adjusting rod 5-2 and an adjusting support nut 5-3, the supporting leg 5-1 is vertically placed on the ground, the lower end of the threaded height adjusting rod 5-2 is screwed with the upper end of the supporting leg 5-1, the threaded height adjusting rod 5-2 is connected and supported to the crankshaft support plate assembly 4 through the adjusting support nut 5-3, and the threaded height adjusting rod 5-2 is adjusted according to the height of the main bearing hole of the engine body, so that the placing surface of the crankshaft support plate assembly 4 is adjusted to a horizontal state.

[0031] In a specific embodiment, referring to Figure 1 As shown, the falling prevention plate assembly 6 comprises a falling prevention plate 6-1 and a collision prevention pad II 6-2, the falling prevention plate 6-1 is in a slope plate structure, the collision prevention pad II 6-2 is fixed on the crankshaft contact surface of the falling prevention plate 6-1 through a bolt, and the falling prevention plate 6-1 is fixed on the upper surface of the tail part of the crankshaft support plate assembly 4 through a bolt, so as to prevent the crankshaft from falling accidentally after being placed on the tool.

[0032] In a specific embodiment, referring to Figure 1As shown, the connecting fixing rod assembly 7 comprises a threaded connecting rod 7-1 and a spacer 7-2, the threaded connecting rod 7-1 is a threaded rod at the front end and is welded with a stop block 7-3 at the rear end, the threaded connecting rod 7-1 is connected with the main bearing bolt 2 of the engine through the crankshaft support plate assembly 4 to avoid the tool from being separated from the fuselage, and the spacer 7-2 is worn on the threaded connecting rod 7-1 to adjust the length thereof.

[0033] When the tool is used:

[0034] When the tool is installed, the engine fuselage 1 is placed in a side position, the main bearing bolt 2 is installed in the fuselage bolt hole, when the crankshaft assembly 3 is assembled, two sets of the tool are respectively installed at the first and last main bearings of the fuselage, the crankshaft support plate assembly 4 is placed at the main bearing installation position of the engine fuselage 1, is connected with the engine fuselage 1 through the connecting fixing rod assembly 7 and the bolt, the height of the tool is adjusted through the height adjusting rod assembly 5, the crankshaft support plate assembly 4 is adjusted to a horizontal state, and the anti-falling plate assembly 6 is installed above the tail of the crankshaft support plate assembly 4.

[0035] The crankshaft assembly 3 is placed on the crankshaft support plate assembly 4, is rolled into the fuselage by pushing the crankshaft, then the main bearing covers except the first and last ones are installed, the tool is removed, finally the first and last main bearing covers are installed, and the assembly of the crankshaft is completed.

[0036] The use of the tool makes the crankshaft assembly process stable, the bearing bush impact is small, and the bearing bush assembly quality can be improved; the tool has the advantages of simple structure, low cost, simple operation process, single-person operation, and effective saving of labor cost.

[0037] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0038] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A crankshaft assembly tool for use in the side of the fuselage, characterized in that: The crankshaft assembly tool is suitable for the installation of the crankshaft assembly (3) when the engine body (1) is placed on one side, and the crankshaft assembly tool is installed at the front and rear main bearing of the engine body (1); The crankshaft assembly tool comprises a crankshaft support plate assembly (4), a height adjusting rod assembly (5), a falling prevention plate assembly (6) and a connecting fixing rod assembly (7), the crankshaft support plate assembly (4) is placed at the main bearing installation position of the engine body (1), the crankshaft support plate assembly (4) is connected with the engine body (1) through the connecting fixing rod assembly (7), the lower part of the crankshaft support plate assembly (4) is supported and the height is adjusted through the height adjusting rod assembly (5), and the crankshaft support plate assembly (4) is adjusted to a horizontal state, and the falling prevention plate assembly (6) is installed above the tail part of the crankshaft support plate assembly (4).

2. The crankshaft assembly tool for use with a side-mounted engine block as defined in claim 1, wherein: The crankshaft support plate assembly (4) comprises a support plate (4-1), a positioning bolt (4-2) and an anti-collision pad I (4-3), the upper surface of the support plate (4-1) is covered with the anti-collision pad I (4-3), and the support plate (4-1) is fixed on the engine body (1) or the main bearing bolt (2) through the positioning bolt (4-2).

3. The crankshaft assembly tool for use with a side-mounted engine block as defined in claim 2, wherein: The material of the anti-collision pad I (4-3) is nylon.

4. The crankshaft assembly tool for use with a side-mounted engine block as defined in claim 1, wherein: The height adjusting rod assembly (5) is composed of a supporting leg (5-1), a threaded height adjusting rod (5-2) and an adjusting support nut (5-3), the supporting leg (5-1) is vertically placed on the ground, the lower end of the threaded height adjusting rod (5-2) is threadedly combined with the upper end of the supporting leg (5-1), the threaded height adjusting rod (5-2) is connected with the crankshaft support plate assembly (4) through the adjusting support nut (5-3), and the threaded height adjusting rod (5-2) is adjusted according to the height of the main bearing hole of the engine body, so that the crankshaft placement surface of the crankshaft support plate assembly (4) is adjusted to a horizontal state.

5. The crankshaft assembly tool for use with a side-mounted engine block as defined in claim 1, wherein: The falling prevention plate assembly (6) comprises a falling prevention plate (6-1) and an anti-collision pad II (6-2), the falling prevention plate (6-1) is in the form of an inclined plate, the anti-collision pad II (6-2) is fixed on the crankshaft contact surface of the falling prevention plate (6-1) through a bolt, and the falling prevention plate (6-1) is fixed on the upper surface of the tail part of the crankshaft support plate assembly (4) through a bolt.

6. The crankshaft assembly tool for use with a side-mounted engine block as defined in claim 1, wherein: The connecting fixing rod assembly (7) comprises a threaded connecting rod (7-1) and a pad block (7-2), the front end of the threaded connecting rod (7-1) is a threaded rod, and the rear end is welded with a stop block (7-3), the threaded connecting rod (7-1) is connected with the main bearing bolt (2) of the engine through the crankshaft support plate assembly (4), so as to avoid the separation of the tool and the engine body, and the length of the threaded connecting rod (7-1) is adjusted through the pad block (7-2).

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