Rapid mistake-proof installation device for crankshaft bearing cap and bolt

By designing a rapid error-proof installation device that includes a main frame, partition plate, magnet, bolt support bracket and bearing cover support, the problem of incorrect bearing cover installation was solved, production efficiency and quality were improved, and the correct installation sequence and direction were ensured.

CN223820055UActive Publication Date: 2026-01-23HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD +1
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Patent Information

Application Number
CN202520180091.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-01-23
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

In automobile engine production, incorrect installation of bearing caps is difficult to identify quickly and can easily lead to increased production costs and inefficiency. Existing technologies are unable to effectively avoid such human errors.

Method used

A rapid error-proof installation device was designed, comprising a main frame, partition plates, magnets, bolt support brackets, and bearing cover support. The device uses magnets to attract bolts and error-proof reminders to ensure the correct installation sequence and orientation.

Benefits of technology

It simplifies the installation process, improves production efficiency, reduces the probability of incorrect installation, ensures production quality and component stability, and avoids the problem of bearing cover being installed backwards due to careless operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crankshaft bearing cap and bolt quick mistake-proofing mounting device, and belongs to the technical field of automobile engine manufacturing. The front end face of the main frame body is fixedly connected with a plurality of partition plates, a mounting groove position of a U-shaped structure is fixed between every two adjacent partition plates, a magnet is fixed to the groove bottom face of each mounting groove position, and each magnet is fixedly connected with the front end face of the main frame body. According to the utility model, the design is simple, an operator can complete the work with least steps, the complexity of production and installation steps is reduced, the working efficiency is improved, and the problem that the bearing cover is reversely installed due to carelessness of the operator is effectively avoided through error-proofing reminding, so that the production quality is ensured, and the performance is more prominent in the long-term production process.
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Description

Technical Field

[0001] This utility model relates to a crankshaft bearing cover and bolt quick-installation error prevention device, belonging to the field of automotive engine manufacturing technology. Background Technology

[0002] To ensure stable and efficient operation, the crankshaft must be precisely mounted on the engine block and secured with specialized bearing caps and bolts. This process demands not only high precision but also involves various bearing caps of different sizes and specifications, as well as a corresponding number of bolts.

[0003] The assembly of the bearing caps on the cylinder block is a complex and meticulous process. Although these bearing caps may appear similar, they each have specific functions, installation sequences, and orientation requirements, and cannot be arbitrarily interchanged. This design specificity aims to ensure that the crankshaft receives uniform and stable support during operation, thereby avoiding problems such as vibration, wear, and performance degradation.

[0004] However, on actual production lines, due to the highly repetitive nature of the operations, the cumulative fatigue from the working environment, and the potentially high labor intensity faced by operators, there is a risk of incorrectly installing the bearing cap. This type of human error is not only difficult to identify quickly with the naked eye, but if it is not detected and corrected in time, it will cause problems in subsequent processing or testing stages of the cylinder block, ultimately potentially leading to the scrapping of the entire component. This not only increases production costs but also seriously affects production efficiency and product quality. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a quick and error-proof installation device for crankshaft bearing caps and bolts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a crankshaft bearing cover and bolt quick-installation anti-misalignment device, comprising a main frame, partition plates, installation slots, and magnets; the front end face of the main frame is fixedly connected to multiple partition plates, and a U-shaped installation slot is fixed between each two adjacent partition plates, and a magnet is fixed to the bottom surface of each installation slot, and each magnet is fixedly connected to the front end face of the main frame.

[0007] A handle is fixed to the rear end face of the main frame.

[0008] The mounting device also includes a bolt support bracket.

[0009] The bolt bearing support comprises a mounting support, guide rail limiting frames and guide rails; the upper end of the mounting support is inserted with a plurality of parallel guide rails with equal gaps, and the left and right ends of the mounting support are fixed with guide rail limiting frames, the guide rail limiting frames are sleeved outside the plurality of guide rails, and a bolt bearing space is reserved between each adjacent two guide rails.

[0010] The mounting device further comprises a bearing cover carrier with an L-shaped structure.

[0011] The middle part of the horizontal plate of the bearing cover carrier is provided with a circular-arc-shaped bearing cover positioning slope.

[0012] The bearing cover positioning slope is provided with a mistake-preventing reminding mark.

[0013] The front end of the bearing cover carrier is provided with a use direction mark.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses the design is simple, and the operator can complete the work with the least steps, reduces the complexity of production installation steps, improves work efficiency, effectively avoids the problem that bearing cover is installed reversely due to the carelessness of the operator through mistake-preventing reminding, thereby ensuring production quality, especially in the long-term production process, is more outstanding. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the front view of Figure 1 ;

[0018] Figure 3 It is the structural schematic diagram of the bolt bearing support;

[0019] Figure 4 It is the structural schematic diagram of the bearing cover carrier. DETAILED DESCRIPTION

[0020] The technical solutions in the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0021] The utility model provides a kind of crankshaft bearing cap and bolt quick mistake-proof installation device, including main frame body 1, partition 2, installation slot 4 and magnet 5;The main frame body 1 is rectangular plate structure, and the front end surface of main frame body 1 is fixedly connected with multiple equidistributed partition 2 along its longitudinal direction, and U-shaped installation slot 4 is fixed between every two adjacent partition 2, and magnet 5 is fixed on the groove bottom surface of every installation slot 4, and every magnet 5 is fixedly connected with the front end surface of main frame body 1, and installation slot 4 is the position of placing after bolt adsorption.

[0022] Handle 3 is fixed on the rear end surface of the main frame body 1, to facilitate the operator to use.

[0023] The installation device further includes bolt carrying support, to facilitate the operator to adsorb bolt.

[0024] The bolt carrying support includes installation support 11, guide rail limiting frame 12 and guide rail 13;The upper end of installation support 11 is inserted with multiple parallel and equidistantly spaced guide rails 13, and guide rail limiting frame 12 is fixed on the left and right ends of installation support 11, and the guide rail limiting frame 12 is sleeved on the outside of multiple guide rails 13, and bolt carrying space 14 is left between every two adjacent guide rails 13.

[0025] The installation device further includes bearing cap carrier 7 of L-shaped structure, and the vertical plate of bearing cap carrier 7 is used for limiting.

[0026] The middle part of the horizontal plate of bearing cap carrier 7 is provided with bearing cap positioning slope 8 of circular arc shape, for carrying and positioning bearing cap.

[0027] The mistake-proof reminding mark 10 is arranged on the bearing cap positioning slope 8, to remind the operator of the sequence and direction of bearing cap.

[0028] The front end of bearing cap carrier 7 is provided with use direction mark 9, to remind the operator that this side is right-handed, to ensure that the use method is correct.

[0029] When using the utility model, first, all installation bolts are grouped according to installation sequence, and then all installation bolts are respectively placed in corresponding bolt carrying space 14 according to installation sequence.For example, there are five types of installation bolts, and first, five types of bolts are grouped according to the same type and divided into five groups, defined as group one, group two, group three, group four and group five, then all installation bolts of group one are sequentially placed in the leftmost bolt carrying space 14 with countersunk head on top and thread on bottom, and every adjacent two installation bolts cannot overlap, then group two, group three, group four and group five are sequentially placed in adjacent bolt carrying space 14, to complete the classified placement of installation bolts.

[0030] Then the plurality of bearing caps are placed on the bearing cap positioning slope 8 of the bearing cap carrier 7 in the order of installation.

[0031] Then the main frame 1 is driven by the handle 3 to attract one installation bolt from each group by the magnet 5 respectively, the attracted bolt is inserted into the same end of the corresponding bearing cap respectively, the installation bolt is removed from the disengaging slot 6, then the installation bolt is attracted again and inserted into the other end of the corresponding bearing cap, and then the bearing caps are installed in sequence, so that the misinstallation of the bearing caps is avoided.

[0032] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent conditions of the claims should be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

[0033] 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 description of the specification is 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 be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A quick-installation anti-misalignment device for crankshaft bearing caps and bolts, characterized in that: It includes a main frame (1), partition plates (2), mounting slots (4) and magnets (5); the front end face of the main frame (1) is fixedly connected to multiple partition plates (2), and a U-shaped mounting slot (4) is fixed between each two adjacent partition plates (2). A magnet (5) is fixed on the bottom surface of each mounting slot (4), and each magnet (5) is fixedly connected to the front end face of the main frame (1).

2. The crankshaft bearing cover and bolt quick-installation anti-misalignment device according to claim 1, characterized in that: A handle (3) is fixed to the rear end face of the main frame (1).

3. The crankshaft bearing cover and bolt quick-installation anti-misalignment device according to claim 1, characterized in that: The mounting device also includes a bolt support bracket.

4. The crankshaft bearing cover and bolt quick-installation anti-misalignment device according to claim 3, characterized in that: The bolt bearing bracket includes a mounting bracket (11), a guide rail limiting frame (12), and a guide rail (13). The upper end of the mounting bracket (11) is inserted into a plurality of parallel guide rails (13) with equal spacing. The left and right ends of the mounting bracket (11) are fixed with guide rail limiting frames (12). The guide rail limiting frames (12) are fitted on the outside of the plurality of guide rails (13). A bolt bearing space (14) is left between each pair of adjacent guide rails (13).

5. The crankshaft bearing cover and bolt quick-installation anti-misalignment device according to claim 1, characterized in that: The mounting device also includes an L-shaped bearing cap carrier (7).

6. The crankshaft bearing cover and bolt quick-installation anti-misalignment device according to claim 5, characterized in that: The bearing cover support (7) has an arc-shaped bearing cover positioning slope (8) in the middle of the horizontal plate.

7. A crankshaft bearing cover and bolt quick-installation anti-misalignment device according to claim 6, characterized in that: The bearing cover positioning slope (8) is provided with a mistake prevention reminder label (10).

8. A crankshaft bearing cover and bolt quick-installation anti-misalignment device according to claim 7, characterized in that: The bearing cover carrier (7) has a usage direction marking (9) at its front end.