Pump driving end supporting structure

Abstract

The utility model discloses a pump driving end supporting structure which comprises a supporting frame, a height determining assembly and an adjusting assembly, the supporting frame comprises an arc-shaped supporting face capable of being matched with a pump driving end and a supporting block capable of being supported on a bottom plate, and the height determining assembly is arranged on the supporting frame and used for determining the height of the pump driving end. The adjusting assembly is used for adjusting the height of the supporting frame so that the arc-shaped supporting face can abut against the pump driving end. According to the pump driving end supporting structure, the supporting frame makes contact with the diesel engine pre-lubricating oil pump driving end through the arc-shaped supporting face, the contact area can be increased, and the supporting stability can be improved; the height determining assembly can determine the height of the driving end of the diesel engine pre-lubricating oil pump, the adjusting assembly can adjust the height of the supporting frame, so that the arc-shaped supporting face abuts against the driving end of the diesel engine pre-lubricating oil pump, adjustment is easy and convenient, supporting rigidity can be improved, later-period vibration is reduced, and normal operation of the diesel engine pre-lubricating oil pump is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power station diesel engine prelubricating oil pump equipment technical field, more specifically, it relates to a pump drive end support structure. BACKGROUND

[0002] Nuclear power station emergency diesel generator is directly related to nuclear safety as emergency safety power supply, when the station service power supply and auxiliary power supply of nuclear power station break down, emergency diesel generator starts power supply and guarantees nuclear safety equipment power consumption.

[0003] Diesel engine prelubricating oil pump is a gear pump, and the main function is: under the diesel engine standby state, lubricating oil is delivered to each mechanical component of the diesel engine body to be lubricated, so that the oil film can be rapidly established after the diesel engine is started in emergency, and the damage of friction components due to lack of lubrication is prevented, the manufacturer requires that the downtime of the prelubricating oil pump under the standby state should not exceed two hours, otherwise the diesel engine will be unusable. The diesel engine prelubricating oil pump is in a running state all the time, if an unusable failure occurs due to vibration and the like, the normal use of the diesel engine will be affected, and the nuclear safety will be affected.

[0004] The position with high vibration of the diesel engine prelubricating oil pump is the driving end of the diesel engine prelubricating oil pump, the bottom support of the driving end in the prior art is a C-shaped cantilever support structure and a stud, the bottom of the C-shaped cantilever support structure is suspended, the stud directly contacts the driving end of the diesel engine prelubricating oil pump, the length of the stud is relatively long, the single-arm support effect is poor, and the problem of insufficient rigidity exists, the vibration of the pump driving end in the horizontal direction is prone to be high, and a safety hazard exists.

[0005] Therefore, how to improve the support stability of the driving end of the diesel engine prelubricating oil pump and ensure the normal operation of the diesel engine prelubricating oil pump becomes a technical problem to be solved by the person skilled in the art. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model aims at providing a pump drive end support structure to improve the support stability of the driving end of the diesel engine prelubricating oil pump and ensure the normal operation of the diesel engine prelubricating oil pump.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A pump drive end support structure comprises:

[0009] The support frame comprises an arc-shaped support surface capable of cooperating with the pump driving end and a support block capable of being supported on the bottom plate;

[0010] The height determining assembly is arranged on the support frame and is used for determining the height of the pump driving end;

[0011] An adjusting assembly is configured to adjust the height of the support frame so that the arc-shaped support surface abuts against the pump driving end.

[0012] Optionally, in the pump driving end support structure, the support frame comprises:

[0013] A support frame body, and the arc-shaped support surface is arranged on the support frame body;

[0014] Support blocks are arranged on both sides of the support frame body.

[0015] Optionally, in the pump driving end support structure, the wall surface on both sides of the support frame body is an inclined surface.

[0016] Optionally, in the pump driving end support structure, the cross-sectional shape of the support block is rectangular, trapezoidal or elliptical.

[0017] Optionally, in the pump driving end support structure, the height determining assembly comprises a first bolt and a nut, the nut is connected with the support frame body, a first mounting hole is arranged on the support frame body, the first bolt is threadedly connected with the nut and passes through the first mounting hole.

[0018] Optionally, in the pump driving end support structure, the adjusting assembly comprises:

[0019] A second bolt, a first threaded hole is arranged on the bottom plate, a second mounting hole is arranged on the support block, the second bolt passes through the second mounting hole and is threadedly connected with the first threaded hole;

[0020] A third bolt, a second threaded hole is arranged on the support block, the third bolt is threadedly connected with the second threaded hole and abuts against the bottom plate;

[0021] A gasket, the gasket is arranged between the support frame and the bottom plate.

[0022] Optionally, in the pump driving end support structure, the gasket comprises a plurality of gaskets, and the thicknesses of the gaskets are the same or different.

[0023] Optionally, in the pump driving end support structure, the second mounting hole is a waist-shaped hole.

[0024] Optionally, in the pump driving end support structure, the third mounting hole is arranged on the inner side or the outer side of the threaded hole.

[0025] Optionally, in the pump driving end support structure, the material of the support frame is metal.

[0026] From the above scheme can be seen, the utility model discloses a pump drive end support structure, and the support frame is contacted with the diesel engine prelubricating oil pump drive end through the arc support surface, compared with the prior art through the stud and the diesel engine prelubricating oil pump contact, can increase the contact area, increase the friction, make the diesel engine prelubricating oil pump more stable in the operation process, reduce the vibration, through the support block is supported on the bottom plate, compared with the prior art through the scheme of C type cantilever support structure, can increase the contact area with the bottom plate, and the greater contact area can more evenly distribute the load, reduce the local stress concentration, and compared with the C type cantilever support structure, the support block is more stable, can improve the overall support effect, improve the stability of support, and the height determination component can determine the height of the diesel engine prelubricating oil pump drive end, and the adjusting component can adjust the height of the support frame, so that the arc support surface is in abutment with the diesel engine prelubricating oil pump drive end, and the adjustment is simple and convenient, can improve the support rigidity, reduce the later vibration, guarantee the normal operation of the diesel engine prelubricating oil pump. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating labor.

[0028] Figure 1 The structural diagram of the support frame disclosed in the embodiments of the present application is shown in the drawings.

[0029] Figure 2 The front view of the support frame disclosed in the embodiments of the present application is shown in the drawings.

[0030] Figure 3 The side view of the support frame disclosed in the embodiments of the present application is shown in the drawings.

[0031] Figure 4 The top view of the support frame disclosed in the embodiments of the present application is shown in the drawings.

[0032] Figure 5 The schematic diagram of the pump drive end support structure disclosed in the embodiments of the present application is shown in the drawings.

[0033] Among them, 10 is the support frame, 11 is the support frame main body, 111 is the arc support surface, 112 is the first mounting hole, 12 is the support block, 121 is the second mounting hole, 122 is the second threaded hole;

[0034] 20 is the height determination component, 21 is the first bolt, 22 is the nut.

[0035] 30 is an adjusting assembly, 31 is a second bolt, and 32 is a third bolt. DETAILED DESCRIPTION

[0036] The core of the utility model lies in disclosing a pump driving end support structure to improve the support stability of the diesel engine pre-lubricating oil pump driving end and ensure the normal operation of the diesel engine pre-lubricating oil pump.

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not 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 scope of protection of the utility model.

[0038] As shown in the drawings, Figure 5 The utility model embodiment discloses a pump driving end support structure, which comprises a support frame 10, a height determining assembly 20 and an adjusting assembly 30.

[0039] It should be noted that the pump driving end support structure is described below by taking the application to the diesel engine pre-lubricating oil pump driving end as an example, but the pump driving end support structure is not limited to the application to the diesel engine pre-lubricating oil pump driving end and can also be applied to the support of other types of pump driving ends.

[0040] The support frame 10 comprises an arc-shaped support surface 111 capable of cooperating with the pump driving end and a support block 12 capable of being supported on the bottom plate, and the specific arc size of the arc-shaped support surface 111 is set according to the arc of the pump driving end. The height determining assembly 20 is arranged on the support frame 10 and is used for determining the height of the diesel engine pre-lubricating oil pump driving end, so that the motor output shaft of the diesel engine pre-lubricating oil pump driving end is on the same straight line as the pump shaft of the diesel engine pre-lubricating oil pump, thereby ensuring the connection precision of the two, and the adjusting assembly 30 is used for adjusting the height of the support frame 10, so that the arc-shaped support surface 111 abuts against the diesel engine pre-lubricating oil pump driving end.

[0041] The utility model discloses a pump drive end support structure, support frame 10 is contacted with diesel engine prelubricating oil pump drive end through arc support surface 111, compared with the prior art through stud and diesel engine prelubricating oil pump contact, can increase the contact area, increase friction, make diesel engine prelubricating oil pump more stable in the operation process, reduce vibration, support on the bottom plate through support block 12, compared with the prior art through the scheme of C type cantilever support structure, can increase the contact area with the bottom plate, and greater contact area can more evenly distribute load, reduce local stress concentration, and compared with C type cantilever support structure, the structure is more stable, can improve the overall support effect, improve the stability of support, height determination component 20 can determine the height of diesel engine prelubricating oil pump drive end, and adjusting component 30 can adjust the height of support frame 10, so that arc support surface 111 and diesel engine prelubricating oil pump drive end abut, and the adjustment is simple and convenient, can improve support rigidity, reduce later vibration, guarantee the normal operation of diesel engine prelubricating oil pump.

[0042] Further, as shown in Figures 1-4 Support frame 10 includes support frame main body 11 and support block 12, wherein support block 12 is arranged on both sides of support frame main body 11, and arc support surface 111 is arranged on support frame main body 11. Support frame 10 can be an integral structure, or can be a split structure, support block 12 and support frame main body 11 are connected by welding, preferably an integral structure, and the two support blocks 12 are symmetrically arranged.

[0043] Further, the wall surface on both sides of support frame main body 11 is an inclined surface, and support frame main body 11 is in a trapezoidal structure. This arrangement can improve the structural stability of support frame 10 and adapt to different types of pump drive ends.

[0044] Further, the cross-sectional shape of support block 12 is rectangular, trapezoidal, square or elliptical, and the specific shape is not limited, Figure 1 The cross-sectional shape of support block 12 is rectangular as shown in the prior art.

[0045] Further, height determination component 20 includes first bolt 21 and nut 22, nut 22 is connected with support frame main body 11, first mounting hole 112 is formed in support frame main body 11, first mounting hole 112 is a through hole, first bolt 21 is threadedly connected with nut 22 and passes through first mounting hole 112, and the specific structure is shown in Figure 1 And Figure 5

[0046] ​The first bolt 21 is rotated in the first direction to abut the first bolt 21 with the pump driving end, the distance between the bottom surface of the pump driving end and the ground is recorded, then the first bolt 21 is rotated in the second direction to lower the first bolt 21 to be flush with or lower than the surface of the arc-shaped supporting surface 111, then the height of the supporting frame 10 is adjusted by the adjusting assembly 30 to abut the arc-shaped supporting surface 111 with the pump driving end. Preferably, the first bolt 21 is an M16 bolt.

[0047] Further, the adjusting assembly 30 comprises a second bolt 31, a third bolt 32 and a gasket, the bottom plate is provided with a first threaded hole, the supporting block 12 is provided with a second mounting hole 121, the second bolt 31 passes through the second mounting hole and is threadedly connected with the first threaded hole. The supporting block 12 is provided with a second threaded hole 122, the third bolt 32 is threadedly connected with the second threaded hole 122 and abuts against the bottom plate, and the gasket is arranged between the supporting frame 10 and the bottom plate, as shown in Figure 1 and Figure 5 .

[0048] After the height determination assembly 20 determines the height of the pump driving end, taking the adjustment of one side of the supporting block 12 as an example, when the supporting frame 10 needs to be raised, the second bolt 31 is first rotated in the second direction to disengage the second bolt 31 from the second threaded hole 122, that is, the supporting frame 10 is disengaged from the bottom plate, then the third bolt 32 is rotated in the first direction, the supporting block 12 is raised until the arc-shaped supporting surface 111 abuts against the diesel engine pre-lubricating oil pump driving end, a gasket is added at the bottom of the supporting frame 10 to fill the gap between the supporting frame 10 and the bottom plate, then the second bolt 31 is rotated in the first direction to threadedly connect the second bolt 31 with the first threaded hole to fix the supporting frame 10 with the bottom plate. The adjustment mode of the supporting block 12 on the other side is the same as above, and will not be described herein again. The adjusting assemblies on the two sides are adjusted respectively until the height of the arc-shaped supporting surface 111 reaches the height determined by the height determination assembly 20, and the arc-shaped supporting surface 111 abuts against the pump driving end. Preferably, the second bolt 31 is an M10 bolt and the third bolt 32 is an M8 bolt. It should be noted that the adjusting assemblies 30 on the supporting blocks 12 on the two sides can be adjusted simultaneously or one set of adjusting assemblies can be adjusted first and then the other set of adjusting assemblies can be adjusted.

[0049] Further, the gasket comprises a plurality of gaskets with the same or different thicknesses, and the gasket with the appropriate thickness is selected according to the height adjustment of the supporting frame 10. Preferably, the gasket is a metal gasket, such as a copper gasket or an iron gasket.

[0050] Further, in order to better abut the arc-shaped supporting surface 111 on the supporting frame 10 with the diesel engine pre-lubricating oil pump driving end, the second mounting hole 121 is a waist-shaped hole. The waist-shaped hole can adjust the position of the supporting frame 10 to better abut the arc-shaped supporting surface 111 with the pump driving end.

[0051] Further, the second mounting hole 121 is provided at the inner side or the outer side of the second threaded hole 122, Figure 4 The second mounting hole 121 shown in the middle is provided at the inner side of the second threaded hole 122.

[0052] The pump driving end support structure disclosed in the embodiment of the utility model, the material quality of support frame 10 is preferably metal material, such as cast iron, alloy steel or stainless steel, to ensure the stability of support.

[0053] It should be noted that each of the embodiments in the specification adopts a progressive manner for description, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between each embodiment can be referred to.

[0054] Hereinafter, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.

[0055] The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment description is only used to help understand the core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A pump drive end support structure, characterized by, The utility model provides a kind of height-adjustable support frame for pump drive end, comprising: Support frame (10), the support frame (10) includes the arc support surface (111) can be matched with pump drive end and support block (12) can be supported to bottom plate; Height determination component (20), the height determination component (20) is arranged on the support frame (10), for determining the height of the pump drive end; Adjusting component (30), the adjusting component (30) is used to adjust the height of the support frame (10), so that the arc support surface (111) is in abutment with the pump drive end.

2. The pump drive end support structure of claim 1, wherein, The support frame (10) includes: Support frame body (11), the arc support surface (111) is arranged on the support frame body (11); The support block (12), both sides of the support frame body (11) are provided with the support block (12).

3. The pump drive end support structure of claim 2, wherein The wall surface of both sides of the support frame body (11) is inclined surface.

4. The pump drive end support structure of claim 3, wherein The cross-sectional shape of the support block (12) is rectangular or trapezoidal or elliptical.

5. The pump drive end support structure of claim 2, wherein The height determination component (20) includes first bolt (21) and nut (22), the nut (22) is connected with the support frame body (11), the first installation hole (112) is opened in the support frame body (11), the first bolt (21) is in threaded cooperation with the nut (22), and passes through the first installation hole (112).

6. The pump drive end support structure of claim 5, wherein, The adjusting component (30) includes: Second bolt (31), the first threaded hole is opened in the bottom plate, the second installation hole (121) is opened in the support block (12), the second bolt (31) passes through the second installation hole (121) and is in threaded cooperation with the first threaded hole; Third bolt (32), the second threaded hole (122) is opened in the support block (12), the third bolt (32) is in threaded cooperation with the second threaded hole (122), and is in abutment with the bottom plate; Gasket, the gasket is arranged between the support frame (10) and the bottom plate.

7. The pump drive end support structure of claim 6, wherein The gasket includes a plurality of, the thickness of each gasket is same or different.

8. The pump drive end support structure of claim 6, wherein, The second installation hole (121) is a waist type hole.

9. The pump drive end support structure of claim 6, wherein The second installation hole (121) is arranged on the inner side or the outer side of the second threaded hole (122).

10. The pump drive end support structure of any one of claims 1-9, wherein, The material of the support frame (10) is metal material.

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