Crankshaft alignment tool and assembling and split charging clamp

Abstract

The crankshaft alignment tool comprises a base, the base is provided with an installation hole and used for being connected with a crankshaft, the crankshaft alignment tool further comprises a lock rod, the base comprises a plurality of clamping sleeves, the lock rod can be inserted into the clamping sleeves and drive the base to rotate, and the lock rod can be inserted into the clamping sleeves and drive the base to rotate. And the crankshaft connected with the base is rotationally disassembled and assembled. According to the crankshaft alignment tool, disassembly and assembly of the crankshaft are achieved through cooperation between the locking rods and the base, the multiple clamping sleeves are arranged on the base, when disassembly and assembly need to be conducted, the locking rods are inserted into the clamping sleeves, then disassembly and assembly of the crankshaft can be achieved through the locking rods, the labor intensity of workers is reduced, the disassembly and assembly efficiency can be further improved, and in addition, the assembly and disassembly efficiency is improved. The locking rod can be inserted into the two clamping sleeves, accurate and rapid alignment of crankshaft positioning and mounting holes is achieved, the positioning accuracy is improved, and the stability of workers during rotating and dismounting is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the crankshaft disassembly and assembly, especially relates to a crankshaft alignment tool and assembly subassembly fixture. BACKGROUND

[0002] In the traditional fuel passenger car production manufacturing process, when the engine and automatic gearbox are subassembled, the flexible disc bolt hole of the two needs to be aligned and connected, and the traditional method is to manually rotate the crankshaft to realize the alignment of the hole. This manual operation method has some problems, such as the difficulty in accurately controlling the force and angle when manually rotating the crankshaft wheel, which may lead to low efficiency of the hole, and the crankshaft and related parts are easily damaged, therefore, a crankshaft alignment tool needs to be designed to solve the above-mentioned problems.

[0003] Therefore, a crankshaft alignment tool needs to be designed to solve the above-mentioned problems. INNOVATION CONTENT

[0004] In order to solve the technical problems that the manual operation method mentioned in the background art is easy to damage the crankshaft and has low efficiency, a crankshaft alignment tool and assembly subassembly fixture are provided to solve the above-mentioned problems.

[0005] In order to achieve the above-mentioned purposes, the specific technical solutions of the crankshaft alignment tool and assembly subassembly fixture of the utility model are as follows:

[0006] A crankshaft alignment tool, comprising a base, the base is provided with a mounting hole for connecting with the crankshaft, the crankshaft alignment tool further comprises a locking rod, the base comprises a plurality of clamping sleeves, the locking rod can be inserted into any two clamping sleeves and drive the base to rotate to rotate the crankshaft connected with the base.

[0007] Further, the base further comprises a base body, the base body is provided with a mounting hole, and the base body is connected with the crankshaft through the mounting hole.

[0008] Further, the base body is a sheet structure, and the projection shape of the base body in the thickness direction of the base body is an axisymmetric figure.

[0009] Further, the clamping sleeve is arranged on the side of the base body not connected with the crankshaft, and the clamping sleeve is provided with a plurality of groups, and each group of clamping sleeves is symmetrically arranged along the symmetry axis of the axisymmetric figure.

[0010] Further, the base body is a circular sheet structure, and the middle part of the base body is provided with a clearance hole.

[0011] Further, the clamping sleeve is arranged on the side of the base body not connected with the crankshaft, and the clamping sleeve is provided with an even number of clamping sleeves, and the even number of clamping sleeves are uniformly distributed on the circumference of the same diameter.

[0012] Further, the sleeve is provided with a card hole for the lock rod to pass through, and the lock rod can be inserted into the card hole of the two sleeves arranged oppositely in sequence, and drive the base to rotate, so as to rotate the crankshaft connected with the base.

[0013] Further, the card hole is square or circular in shape.

[0014] Further, at least one mounting hole is arranged between the two adjacent sleeves, and the crankshaft is provided with a connecting piece corresponding to the mounting hole.

[0015] An assembly and disassembly clamp uses the above-mentioned crankshaft alignment tool to rotate and align the crankshaft on the engine and automatic gearbox of the automobile.

[0016] The crankshaft alignment tool has the following advantages: the rotation alignment of the crankshaft is realized through the cooperation between the lock rod and the base, a plurality of sleeves are arranged on the base, when adjustment is needed, the lock rod is inserted into the sleeve, the rotation disassembly of the crankshaft is realized by using the lock rod, the labor intensity of workers is reduced, the disassembly efficiency is further improved, in addition, the lock rod can be inserted into the two sleeves to realize the accurate and rapid alignment of the positioning mounting hole of the crankshaft, the positioning accuracy is improved, and the stability of the workers during the rotation alignment is ensured.

[0017] The assembly and disassembly clamp has the following advantages: the assembly and disassembly clamp is provided with the mounting hole corresponding to and matching the crankshaft wheel hole on the base, the tool and the crankshaft wheel can be stably connected through the bolt, the stability of the whole is ensured, in addition, the clamp is welded with a plurality of sleeve with holes at the specific position of the tool, the stability and convenience of the insertion of the lock rod are ensured by the different design structure and layout of the plurality of sleeves. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the crankshaft alignment tool of the utility model;

[0019] Figure 2 It is a structure schematic view of the base.

[0020] Marking explanation in the drawing:

[0021] 1, base; 11, mounting hole; 12, base body; 13, avoiding hole; 14, sleeve. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0024] In the traditional manufacturing process of gasoline-powered buses, when assembling the engine and automatic transmission separately, it is necessary to align the flexible disc bolt holes of the two for connection. The traditional method is to manually rotate the crankshaft to achieve this alignment. This manual operation method has some problems, such as the difficulty in precisely controlling the force and angle when manually rotating the crankshaft wheel, which may lead to low efficiency in hole alignment and is prone to damage to the crankshaft and related components. Therefore, it is necessary to design a crankshaft alignment fixture to solve the aforementioned problems.

[0025] The following is a reference to the appendix. Figure 1 To be continued Figure 2 This invention describes a crankshaft alignment fixture and assembly / disassembly jig, wherein... Figure 1 This is a schematic diagram of the crankshaft alignment fixture structure.

[0026] This embodiment provides a crankshaft alignment fixture, such as Figure 1 As shown, the crankshaft alignment fixture includes a base 1 with mounting holes 11 for connecting to the crankshaft. The fixture also includes a locking rod (not shown). The base 1 includes a retaining sleeve 14, into which the locking rod can be inserted and rotated to rotate the crankshaft connected to the base 1. This crankshaft alignment fixture achieves rotational alignment of the crankshaft through the cooperation between the locking rod and the base 1. Figure 1 In the diagram, direction A is the direction of locking rod insertion. Multiple retaining sleeves 14 are provided on the base 1. When adjustment is required, the locking rod is inserted into the retaining sleeve 14, and the crankshaft can be rotated and disassembled using the locking rod. This not only reduces the labor intensity of workers, but also further improves the efficiency of disassembly and assembly. In addition, the locking rod can be inserted into two retaining sleeves 14 to achieve precise and rapid alignment of the crankshaft positioning mounting holes 11, which not only improves the positioning accuracy, but also ensures the stability of workers when rotating and aligning.

[0027] Figure 2 is a schematic view of the base 1.

[0028] Further, the base 1 further comprises a base body 12, as shown in the Figure 2 The base body 12 is provided with mounting holes 11, and the base body 12 is connected with the crankshaft through the mounting holes 11.

[0029] Specifically, the crankshaft alignment tool comprises a fixing member, wherein the fixing member is provided in one-to-one correspondence with the mounting holes 11, and the fixing member is used for inserting into the mounting holes 11 and fixing the base 1 on the crankshaft.

[0030] In the embodiment, the base body 12 is a sheet structure, and the projection shape of the base body 12 along the thickness direction of the base body 12 is an axisymmetric figure.

[0031] Specifically, the clamping sleeves 14 are arranged on the side of the base body 12 which is not connected with the crankshaft, and the clamping sleeves 14 are arranged in multiple groups, and each group of clamping sleeves 14 is symmetrically arranged along the symmetry axis of the axisymmetric figure. In the embodiment, the clamping sleeves 14 are arranged in two groups, and the two groups of clamping sleeves 14 are symmetrically arranged along the symmetry axis of the axisymmetric figure.

[0032] Further, as shown in the Figure 1 and Figure 2 The base body 12 is a circular sheet structure, and the middle part of the base body 12 is provided with a relief hole 13. There may be other structures at the center position of the crankshaft, so the relief hole 13 is arranged at the middle position of the base body 12 to avoid interference between the base body 12 and the crankshaft.

[0033] Further, the clamping sleeves 14 are arranged on the side of the base body 12 which is not connected with the crankshaft, and the clamping sleeves 14 are arranged in multiple groups, and each group of clamping sleeves 14 is symmetrically arranged along the symmetry axis of the axisymmetric figure. In the embodiment, the clamping sleeves 14 are arranged in two groups, and the two groups of clamping sleeves 14 are symmetrically arranged along the symmetry axis of the axisymmetric figure.

[0034] In the embodiment, the clamping sleeves 14 are arranged in four groups, and are uniformly distributed on the circular base body 12 at intervals of 90°. The clamping sleeves 14 can also be square steels, which are made of the same material as the base 1, i.e. Q235, and have a size of 40 mm×40 mm and a length of 40 mm-80 mm, preferably 60 mm in the embodiment. The diameter of the square steels is between 145 mm and 150 mm, preferably 146 mm.

[0035] Further, the clamping sleeves 14 are arranged on the side of the base body 12 which is not connected with the crankshaft, and the clamping sleeves 14 are arranged in multiple groups, and each group of clamping sleeves 14 is symmetrically arranged along the symmetry axis of the axisymmetric figure. In the embodiment, the clamping sleeves 14 are arranged in two groups, and the two groups of clamping sleeves 14 are symmetrically arranged along the symmetry axis of the axisymmetric figure. Figure 1 As shown in the

[0036] In actual operation, the worker can insert the locking rod into the clamping hole, and by rotating the end of the locking rod, a rotating torque is applied to the base 1. Since the base 1 is fastened to the crankshaft through the mounting hole 11 and the fixing member, the base 1 can transmit the rotating torque to the crankshaft, thereby driving the crankshaft to rotate. Since the locking rod is inserted into the clamping sleeve 14 at a symmetrical position, the worker can easily rotate the crankshaft by using the principle of leverage. Taking the insertion of the locking rod from top to bottom as an example, the contact point between the lower clamping sleeve 14 and the locking rod is the fulcrum of the lever, and the distance between the contact point of the upper clamping sleeve 14 and the locking rod and the fulcrum is the resistance arm. The distance between the holding point of the worker and the locking rod and the fulcrum is the power arm. As can be seen, the power arm is always greater than the resistance arm, thereby achieving the rotation of the crankshaft with smaller power. Therefore, this design can facilitate the worker to accurately control the angle and force of rotation, and the operator can more easily rotate the crankshaft. On the other hand, when installing, the worker can also insert the locking rod into the clamping hole, and place the locking rod and the tool near the crankshaft to align the tool with the crankshaft, thereby assisting the worker to more accurately align the mounting hole 11 with the mounting position of the crankshaft.

[0037] Further, the clamping hole is square or circular in shape.

[0038] Further, at least one mounting hole 11 is arranged between two adjacent clamping sleeves 14, and a connecting member is arranged on the crankshaft and corresponds to the mounting hole 11. Specifically, a plurality of bolts that can be aligned with the mounting hole 11 are also arranged on the crankshaft. When assembling the base 1 and the crankshaft, the mounting hole 11 and the bolt on the crankshaft can be fastened, thereby completing the alignment and installation of the base 1 and the crankshaft.

[0039] The embodiment also provides an assembly and disassembly clamp using the crankshaft alignment tool described above, which is used for rotating and aligning the crankshaft on the engine and automatic transmission of an automobile. The assembly and disassembly clamp is stably connected with the crankshaft wheel through the mounting hole 11 arranged on the base 1 and corresponding to the wheel hole position of the crankshaft, thereby ensuring the stability of the whole. In addition, a plurality of clamping sleeves 14 with holes are welded at specific positions of the tool, and the plurality of clamping sleeves 14 are designed and arranged differently to ensure the stability and convenience of the insertion of the locking rod.

[0040] The use steps of the assembly and disassembly clamp are as follows:

[0041] 1. Align the mounting hole 11 of the crankshaft alignment tool with the hole of the crankshaft wheel, and use appropriate bolts to fix the base 1 on the crankshaft wheel, so as to ensure firm connection and accurate tool position;

[0042] 2. Insert the lock lever into the sleeve 14 on the base 1, slowly rotate the lock lever, thereby driving the crankshaft to rotate, and gradually align the flexible disc bolt holes on the two crankshafts of the engine and the automatic gearbox. In this process, the rotation angle and force of the lock lever can be adjusted according to the actual situation.

[0043] 3. After the flexible disc bolt hole alignment is completed, the lock lever can be pulled out for subsequent assembly.

[0044] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments cannot be exhausted. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A crankshaft alignment fixture, characterized by, The crankshaft alignment tool comprises a base provided with mounting holes for connecting with a crankshaft, and a locking rod. The base comprises a plurality of clamping sleeves, and the locking rod can be inserted into any two clamping sleeves to rotate the base and rotate the crankshaft connected with the base.

2. The crankshaft alignment fixture of claim 1, wherein, The base further comprises a base body provided with mounting holes for connecting with the crankshaft.

3. The crankshaft alignment fixture of claim 2, wherein, The base body is in a sheet shape, and the projection shape of the base body along the thickness direction of the base body is an axisymmetric figure.

4. The crankshaft alignment fixture of claim 3, wherein, The clamping sleeves are arranged on the side of the base body not connected with the crankshaft, and a plurality of groups of clamping sleeves are arranged.

5. The crankshaft alignment fixture of claim 3, wherein, The base body is in a circular sheet shape, and a clearance hole is arranged in the middle part of the base body.

6. The crankshaft alignment fixture of claim 5, wherein, The clamping sleeves are arranged on the side of the base body not connected with the crankshaft, and an even number of clamping sleeves are uniformly distributed on the circumference of the same diameter.

7. The crankshaft alignment fixture of claim 6, wherein, The clamping sleeves are provided with clamping holes for the locking rod to pass through, and the locking rod can be sequentially inserted into the clamping holes of two oppositely arranged clamping sleeves to rotate the base body and rotate the crankshaft connected with the base body.

8. The crankshaft alignment fixture of claim 7, wherein, The shape of the clamping hole is square or circular.

9. The crankshaft alignment fixture of claim 6, wherein, At least one mounting hole is arranged between two adjacent clamping sleeves, and a connecting piece is arranged on the crankshaft and corresponds to the mounting holes one by one.

10. An assembly sub- fixture, characterized by, The crankshaft alignment tool is used for rotating and aligning the crankshafts on the engine and automatic transmission of an automobile.

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