Coupler assembling device for diesel generating set

Abstract

The utility model discloses a coupler assembling device for a diesel generator set, which is used for being fixedly connected between a motor shaft of a diesel generator and an expansion sleeve of a coupler, and the motor shaft is inserted in a center hole of the expansion sleeve. Comprising an expansion sleeve connecting plate connected with the end face of an expansion sleeve in an abutting mode, a motor connecting plate connected with the end face of a motor shaft in an abutting mode and a distance positioning plate connected between the expansion sleeve connecting plate and the motor connecting plate in an abutting mode, and a set distance is kept between the end face of the expansion sleeve and the end face of the motor shaft. The safety clearance allowance between the coupler and the flywheel disc of the diesel generator after the coupler is installed is guaranteed, the situation that the installation size is not qualified is avoided, and the operation quality hidden danger of a railway vehicle is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel generator assembly, in particular to a coupling assembly device for a diesel generator set. Background Art

[0002] At present, the commonly used operating modes in rail transit are grid mode and diesel mode. Among them, the diesel mode uses diesel generators to provide power, directly providing electricity to the train without transmission through the grid. The construction cost is lower than that of the grid mode. At the same time, it can also adapt to situations where there is no grid, such as mountainous areas, and meet some uses that require greater flexibility.

[0003] Limited by the existing technical level, diesel generators and couplings are mostly assembled manually. During the assembly process, there are axial movement and improper installation between the diesel generator and the coupling. The size of the motor shaft end of the diesel generator from the expansion sleeve end of the coupling is uncontrollable, and the safety clearance margin between the coupling and the flywheel of the diesel generator cannot be guaranteed after assembly, which poses a major hidden danger to the operating quality of rail vehicles. Utility Model Content

[0004] The purpose of the utility model is to provide a coupling assembly device for a diesel generator set, which ensures that the end face of the expansion sleeve and the end face of the motor shaft maintain a set distance, ensures a safe clearance margin between the coupling and the flywheel disc of the diesel generator after the coupling is installed, and effectively reduces the hidden dangers of rail vehicle operation quality.

[0005] To achieve the above purpose, the utility model provides a coupling assembly device for a diesel generator set, which is used to be fixedly connected between the motor shaft of the diesel generator and the expansion sleeve of the coupling, and the motor shaft is inserted into the center hole of the expansion sleeve, comprising:

[0006] An expansion sleeve connecting plate abutting against the end surface of the expansion sleeve;

[0007] A motor connecting plate abutting against the end surface of the motor shaft;

[0008] A spacing positioning plate is abutted and connected between the expansion sleeve connecting plate and the motor connecting plate to keep a set spacing between the end face of the expansion sleeve and the end face of the motor shaft.

[0009] Preferably, the edge of the expansion sleeve connecting plate is provided with a plurality of mounting holes; and also includes a plurality of expansion sleeve fasteners which are correspondingly passed through the mounting holes, and the expansion sleeve fasteners are threadedly matched with the expansion sleeve fixing grooves provided on the end face of the expansion sleeve.

[0010] Preferably, the head of the expansion sleeve fastener is integrally provided with an expansion sleeve stop block that abuts against the expansion sleeve connecting plate.

[0011] Preferably, all mounting holes are threaded holes, and all mounting holes are symmetrically distributed at both ends of the expansion sleeve connecting plate.

[0012] Preferably, it also includes a shaft end fastener that passes through the expansion sleeve connecting plate, the spacing positioning plate and the motor connecting plate in sequence, and the shaft end fastener is threadedly matched with the shaft end fixing groove provided on the end face of the motor shaft.

[0013] Preferably, the shaft end fastener has a shaft end connecting section matched with the shaft end fixing groove, and the length of the shaft end connecting section is less than or equal to the depth of the shaft end fixing groove.

[0014] Preferably, the head of the shaft end fastener is integrally provided with a limit stop block that abuts against the expansion sleeve connecting plate.

[0015] Preferably, a center connecting hole is provided at the center of the expansion sleeve connecting plate, a center through hole is provided at the center of the spacing positioning plate, and a center fixing hole is provided at the center of the motor connecting plate; the center connecting hole, the center through hole and the center fixing hole are coaxially connected for the shaft end fastener to pass through; the center connecting hole and the center fixing hole are both threaded through holes, and the center through hole is a cylindrical through hole.

[0016] Preferably, the expansion sleeve connecting plate is in the shape of an elongated strip, and both the spacing positioning plate and the motor connecting plate are in the shape of a disc; the width of the expansion sleeve connecting plate is greater than the diameter of the spacing positioning plate, and the diameter of the spacing positioning plate is greater than the diameter of the motor connecting plate.

[0017] Preferably, the spacing positioning plate includes a plurality of stacked sub-positioning sheets with a set thickness.

[0018] Compared with the background technology, the coupling assembly device for a diesel generator set provided by the utility model includes an expansion sleeve connecting plate, a motor connecting plate and a spacing positioning plate. During assembly, the expansion sleeve connecting plate is first abutted and connected with the end face of the expansion sleeve, and the motor connecting plate is then abutted and connected with the end face of the motor shaft, and finally the spacing positioning plate is abutted and connected between the expansion sleeve connecting plate and the motor connecting plate, so that the end face of the expansion sleeve and the end face of the motor shaft maintain a set spacing, and the motor shaft is inserted into the center hole of the expansion sleeve, so that the entire device is fixedly connected between the motor shaft of the diesel generator and the expansion sleeve of the coupling, avoiding relative movement when the coupling is installed on the motor shaft, ensuring that the end face of the expansion sleeve and the end face of the motor shaft maintain a set spacing, ensuring a safe clearance margin between the flywheel of the diesel generator after the coupling is installed, avoiding unqualified installation dimensions, and effectively reducing the hidden dangers of rail vehicle operation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A structural diagram of a coupling assembly device for a diesel generator set provided by an embodiment of the utility model;

[0021] Figure 2 for Figure 1 Side view of

[0022] Figure 3 This is a cross-sectional view of the diesel generator motor shaft and the expansion sleeve of the coupling after assembly.

[0023] The reference numerals are as follows:

[0024] Motor shaft 01 and expansion sleeve 02;

[0025] An expansion sleeve connecting plate 1, a motor connecting plate 2, a spacing positioning plate 3, an expansion sleeve fastener 4 and a shaft end fastener 5;

[0026] Expansion sleeve stop block 41;

[0027] Limit stop block 51. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] The utility model discloses a coupling assembly device for a diesel generator set, which is used to be fixedly connected between the motor shaft 01 of the diesel generator and the expansion sleeve 02 of the coupling. Figure 3 As shown, the expansion sleeve 02 is in the shape of a ring, and a center hole is formed in the center of the expansion sleeve 02. One end of the motor shaft 01 is inserted into the center hole of the expansion sleeve 02, so that the motor shaft 01 and the expansion sleeve 02 are fixedly connected by means of the device, thereby assembling the diesel generator and the coupling together.

[0031] As attached Figure 1 and 2As shown, the coupling assembly device for a diesel generator set includes an expansion sleeve connecting plate 1, a motor connecting plate 2 and a spacing positioning plate 3. The expansion sleeve connecting plate 1 is abutted and connected with the end face of the expansion sleeve 02, that is, the end face of the expansion sleeve connecting plate 1 abuts with the end face of the expansion sleeve 02, and the abutting ends of the expansion sleeve connecting plate 1 and the expansion sleeve 02 are fixedly connected. The motor connecting plate 2 is abutted and connected with the end face of the motor shaft 01, that is, the end face of the motor connecting plate 2 abuts with the end face of the motor shaft 01, and the abutting ends of the motor connecting plate 2 and the motor shaft 01 are fixedly connected. The spacing positioning plate 3 is abutted and connected between the expansion sleeve connecting plate 1 and the motor connecting plate 2, that is, the two ends of the spacing positioning plate 3 abut against the expansion sleeve connecting plate 1 and the motor connecting plate 2, and the spacing positioning plate 3 is fixedly connected between the expansion sleeve connecting plate 1 and the motor connecting plate 2.

[0032] During assembly, the expansion sleeve connecting plate 1 is firstly connected with the end face of the expansion sleeve 02, and the motor connecting plate 2 is then connected with the end face of the motor shaft 01, and finally the spacing positioning plate 3 is connected between the expansion sleeve connecting plate 1 and the motor connecting plate 2, so that the end face of the expansion sleeve 02 and the end face of the motor shaft 01 maintain a set distance, and the motor shaft 01 is inserted into the center hole of the expansion sleeve 02, so that the whole device is fixedly connected between the motor shaft 01 of the diesel generator and the expansion sleeve 02 of the coupling, avoiding relative movement when the coupling is installed on the motor shaft 01, ensuring that the end face of the expansion sleeve 02 and the end face of the motor shaft 01 maintain a set distance, ensuring the safety clearance margin between the flywheel of the diesel generator after the coupling is installed, avoiding unqualified installation dimensions, and effectively reducing the hidden dangers of rail vehicle operation quality.

[0033] The edge of the expansion sleeve connecting plate 1 is provided with a plurality of mounting holes, and the end face of the expansion sleeve 02 is provided with a plurality of expansion sleeve fixing grooves. The coupling assembly device for the diesel generator set also includes a plurality of expansion sleeve fasteners 4, all of which are correspondingly inserted into all the mounting holes, and the tails of all of the expansion sleeve fasteners 4 are correspondingly extended and inserted into all of the expansion sleeve fixing grooves, and the expansion sleeve fasteners 4 are threadedly matched with the expansion sleeve fixing grooves, so that the expansion sleeve connecting plate 1 can be detachably fixed to the end face of the expansion sleeve 02, which is convenient for disassembly and assembly. All mounting holes are threaded holes, the expansion sleeve fasteners 4 are specifically connecting bolts, and the expansion sleeve fixing grooves are specifically threaded grooves.

[0034] All mounting holes are symmetrically distributed at both ends of the expansion sleeve connecting plate 1 to ensure that the expansion sleeve connecting plate 1 is completely in close contact with the end face of the expansion sleeve 02, thereby avoiding insufficient contact between the end faces of the expansion sleeve connecting plate 1 and the expansion sleeve 02, resulting in a large error between the end faces of the expansion sleeve 02 and the end faces of the motor shaft 01 during the assembly process, thereby improving the assembly accuracy.

[0035] The head of the expansion sleeve fastener 4 is integrally provided with an expansion sleeve stopper 41, which abuts against the expansion sleeve connecting plate 1, so that the expansion sleeve fastener 4 applies a locking force to the expansion sleeve connecting plate 1 through the expansion sleeve stopper 41, ensuring that the expansion sleeve connecting plate 1 is reliably fixed. The body of the expansion sleeve fastener 4 is provided with a threaded section, which is threadedly matched with the expansion sleeve connecting plate 1 and the expansion sleeve 02 respectively.

[0036] The coupling assembly device for diesel generator sets also includes a shaft end fastener 5 that passes through the expansion sleeve connection plate 1, the spacing positioning plate 3 and the motor connection plate 2 in sequence, ensuring that the relative positions of the expansion sleeve connection plate 1, the spacing positioning plate 3 and the motor connection plate 2 are fixed, and ensuring that the assembly accuracy is stable and reliable. The end face of the motor shaft 01 is provided with a shaft end fixing groove, and the shaft end fastener 5 cooperates with the shaft end fixing groove, so that the whole device can be detachably fixed between the expansion sleeve 02 and the motor shaft 01, which is convenient for disassembly and assembly.

[0037] The shaft end fastener 5 has a shaft end connection section that matches the shaft end fixing groove, and the length of the shaft end connection section is less than or equal to the depth of the shaft end fixing groove. Ensure that the shaft end fastener 5 locks and fixes the expansion sleeve connection plate 1, the spacing positioning plate 3 and the motor connection plate 2 to the end surface of the motor shaft 01, and avoid the shaft end connection section being too long, which will cause the expansion sleeve connection plate 1, the spacing positioning plate 3 and the motor connection plate 2 to be unreliably fixed.

[0038] The head of the shaft end fastener 5 is integrally provided with a limit stop block 51, which abuts against the expansion sleeve connecting plate 1, so that the shaft end fastener 5 relies on the limit stop block 51 to apply a locking force to the expansion sleeve connecting plate 1, ensuring that the relative positions of the expansion sleeve connecting plate 1, the spacing positioning plate 3 and the motor connecting plate 2 remain unchanged, and the connection relationship is stable. Specifically, the limit stop block 51 abuts against the edge of the central connecting hole of the expansion sleeve connecting plate 1.

[0039] The center of the expansion sleeve connecting plate 1 is provided with a center connecting hole, the center of the spacing positioning plate 3 is provided with a center through hole, and the center of the motor connecting plate 2 is provided with a center fixing hole; the center connecting hole, the center through hole and the center fixing hole are coaxially connected to allow the shaft end fastener 5 to pass through, so that the expansion sleeve connecting plate 1, the spacing positioning plate 3 and the motor connecting plate 2 can be coaxially fixed. The center connecting hole and the center fixing hole are both threaded through holes, and the center through hole is a cylindrical through hole, which can ensure that the expansion sleeve connecting plate 1 and the motor connecting plate 2 are fixed reliably and facilitate the disassembly and assembly of the spacing positioning plate 3. The inner diameter of the center through hole is larger than the effective connection section diameter of the shaft end fastener 5, which facilitates the disassembly and assembly of the spacing positioning plate 3.

[0040] The expansion sleeve connecting plate 1 is in the shape of a long strip, and its length is greater than or equal to the end face diameter of the expansion sleeve 02. Of course, the expansion sleeve connecting plate 1 can also be in the shape of a disc. The spacing positioning plate 3 and the motor connecting plate 2 are both in the shape of discs, and the width of the expansion sleeve connecting plate 1 is greater than the diameter of the spacing positioning plate 3, and the diameter of the spacing positioning plate 3 is greater than the diameter of the motor connecting plate 2.

[0041] The spacing positioning plate 3 includes a plurality of stacked sub-positioning plates with set thicknesses. By adjusting the number of sub-positioning plates, the thickness of the spacing positioning plate 3 can be adjusted at will, so that the sum of the set thicknesses of all installed sub-positioning plates is equal to the set spacing between the end face of the expansion sleeve 02 and the end face of the motor shaft 01. In this way, the spacing positioning plate 3 can be adapted to couplings of diesel generators of different specifications, and has better versatility.

[0042] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0043] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A coupling assembly device for a diesel generator set, used for being fixedly connected between a motor shaft (01) of a diesel generator and an expansion sleeve (02) of a coupling, wherein the motor shaft (01) is inserted into a center hole of the expansion sleeve (02), and characterized in that: include: An expansion sleeve connecting plate (1) abutting against and connected to the end surface of the expansion sleeve (02); A motor connecting plate (2) abutting against the end surface of the motor shaft (01); A spacing positioning plate (3) is abutted and connected between the expansion sleeve connecting plate (1) and the motor connecting plate (2) so as to maintain a set spacing between the end surface of the expansion sleeve (02) and the end surface of the motor shaft (01).

2. The coupling assembly device for a diesel generator set according to claim 1, characterized in that: The expansion sleeve connecting plate (1) is provided with a plurality of mounting holes at its edge; it also comprises a plurality of expansion sleeve fasteners (4) which are correspondingly inserted through the mounting holes, the expansion sleeve fasteners (4) being threadably matched with expansion sleeve fixing grooves provided on the end surface of the expansion sleeve (02).

3. The coupling assembly device for a diesel generator set according to claim 2, characterized in that: The head of the expansion sleeve fastener (4) is integrally provided with an expansion sleeve stop block (41) that abuts against the expansion sleeve connecting plate (1).

4. The coupling assembly device for a diesel generator set according to claim 2, characterized in that: All of the mounting holes are threaded holes, and all of the mounting holes are symmetrically distributed at both ends of the expansion sleeve connecting plate (1).

5. The coupling assembly device for a diesel generator set according to claim 2, characterized in that: It also includes a shaft end fastener (5) that passes through the expansion sleeve connecting plate (1), the spacing positioning plate (3) and the motor connecting plate (2) in sequence, and the shaft end fastener (5) is threadedly matched with a shaft end fixing groove provided on the end surface of the motor shaft (01).

6. The coupling assembly device for a diesel generator set according to claim 5, characterized in that: The shaft end fastener (5) comprises a shaft end connecting section matched with the shaft end fixing groove, and the length of the shaft end connecting section is less than or equal to the depth of the shaft end fixing groove.

7. The coupling assembly device for a diesel generator set according to claim 6, characterized in that: The head of the shaft end fastener (5) is integrally provided with a limit stop block (51) that abuts against the expansion sleeve connecting plate (1).

8. The coupling assembly device for a diesel generator set according to claim 5, characterized in that: A central connecting hole is provided at the center of the expansion sleeve connecting plate (1), a central through hole is provided at the center of the spacing positioning plate (3), and a central fixing hole is provided at the center of the motor connecting plate (2); the central connecting hole, the central through hole and the central fixing hole are coaxially connected to allow the shaft end fastener (5) to pass through; the central connecting hole and the central fixing hole are both threaded through holes, and the central through hole is a cylindrical through hole.

9. The coupling assembly device for a diesel generator set according to claim 8, characterized in that: The expansion sleeve connecting plate (1) is in the shape of an elongated strip, and the spacing positioning plate (3) and the motor connecting plate (2) are both in the shape of a disc; the width of the expansion sleeve connecting plate (1) is greater than the diameter of the spacing positioning plate (3), and the diameter of the spacing positioning plate (3) is greater than the diameter of the motor connecting plate (2).

10. The coupling assembly device for a diesel generator set according to claim 2, characterized in that: The spacing positioning plate (3) comprises a plurality of stacked sub-positioning plates having a set thickness.

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