Pilot oil source valve support

Abstract

The utility model relates to a pilot oil source valve support, which belongs to the technical field of valve supports, solves the problems of stress concentration, high frequency response and the like of the existing support, and comprises an L-shaped plate consisting of a horizontal part and a vertical part, the vertical part is provided with a support mounting hole, and a first stiffened plate and a second stiffened plate which are arranged in parallel are arranged between the horizontal part and the vertical part. One end of the first stiffened plate is fixed to one side of the vertical part, the other end of the first stiffened plate is fixed to one side of the horizontal part, one end of the second stiffened plate is fixed to the other side of the vertical part, the other end of the second stiffened plate is fixed to the other side of the horizontal part, and unloading grooves are formed in the bottoms of the ends, connected with the vertical part, of the first stiffened plate and the second stiffened plate. The support provided by the utility model avoids the problems of stress concentration, high frequency response and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of valve brackets, in particular to a pilot oil source valve bracket. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The structure of the current pilot oil source valve bracket is as follows Figure 1-Figure 2 As shown, it includes an L-shaped plate with a thickness of 5 mm. A reinforcing plate 3 is welded between the horizontal portion 1 and the vertical portion 2 of the L-shaped plate. One end of the reinforcing plate 3 is welded and fixed to the middle position of the vertical portion 2, and the other end is welded and fixed to the middle position of the horizontal portion 1. The two bracket mounting holes 4 on the vertical portion 2 are located on both sides of the reinforcing plate 3. When this method is adopted, the bottom welding point of the connecting part of the reinforcing plate 3 and the vertical portion 2 is close to the position of the bracket mounting hole 4. If the size of the L-shaped plate is increased, the original size of the reinforcing plate structure The structural strength cannot meet the requirements, so it is necessary to increase the width of the reinforced plate 3. The relative positions of the two bracket mounting holes 4 on the vertical portion 2 and the center line of the L-shaped plate remain unchanged. If the width of the reinforced plate 3 is increased, the connection position between the reinforced plate 3 and the vertical portion passes through the space between the two bracket mounting holes 4. The distance between the reinforced plate 3 and the bracket mounting hole 4 is too close, which is prone to fracture and stress concentration at the bottom welding point between the reinforced plate and the vertical portion. The frequency response is large, and the weld between the reinforced plate 3 and the vertical portion 2 will affect the operation of the bracket mounting hole 4. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a pilot oil source valve bracket to reduce stress concentration and frequency response.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides a pilot oil source valve bracket, including an L-shaped plate composed of a horizontal portion and a vertical portion, the vertical portion is provided with a bracket mounting hole, a first stiffened plate and a second stiffened plate are arranged in parallel between the horizontal portion and the vertical portion, one end of the first stiffened plate is fixed to one side of the vertical portion, and the other end is fixed to one side of the horizontal portion, one end of the second stiffened plate is fixed to the other side of the vertical portion, and the other end is fixed to the other side of the horizontal portion, and a unloading groove is provided at the bottom of the end where the first stiffened plate and the second stiffened plate connect the vertical portion.

[0007] Optionally, the side surfaces of the first stiffened plate and the second stiffened plate away from the horizontal portion have concave arc surfaces to form a groove structure.

[0008] Optionally, the unloading groove is a semicircular unloading groove.

[0009] Optionally, the radius of the semicircular unloading groove is 4mm-6mm.

[0010] Optionally, a pilot oil source valve mounting hole is provided on the horizontal portion.

[0011] Optionally, the thickness of the horizontal portion is 7mm-9mm.

[0012] Optionally, the thickness of the vertical portion is 7mm-9mm.

[0013] Optionally, an arc-shaped transition portion is provided at the connection position between the vertical portion and the horizontal portion, and the vertical portion is vertically connected to the horizontal portion through the transition portion.

[0014] Optionally, the outer surfaces of the first stiffened plate and the second stiffened plate each include two parallel plate surfaces, a first fixed surface and a second fixed surface are provided between the two plate surfaces, the first fixed surface is fixed to the lower surface of the end of the horizontal portion away from the vertical portion, the second fixed surface is fixed to the inner side surface of the vertical portion, an upper edge surface is provided between one end of the first fixed surface and the second fixed surface, a front edge surface parallel to the second fixed surface is provided at the other end, a lower edge surface is provided between the bottom end of the front edge surface and the bottom end of the second fixed surface, and a unloading groove is provided on the end of the lower edge surface close to the vertical portion.

[0015] Optionally, the first stiffened plate and the second stiffened plate are welded and fixed to the vertical portion, and outer edges of the surfaces for welding and fixing to the vertical portion are provided with grooves.

[0016] The beneficial effects of the above utility model are as follows:

[0017] 1. In the pilot oil source valve bracket of the utility model, the first stiffened plate and the second stiffened plate are respectively arranged at the two sides of the vertical part and the horizontal part, so that when the width of the first stiffened plate and the second stiffened plate increases, the distance between the two bracket mounting holes is greater than the distance between the stiffened plate of the same width and the bracket mounting holes when passing through the two bracket mounting holes, thereby avoiding the fracture phenomenon and the stress concentration at the lower welding point between the stiffened plate and the vertical part, and the weld between the stiffened plate and the vertical part will not affect the bracket mounting hole. By setting the unloading groove, the frequency response generated during the welding process is reduced, and the stress at the lower welding point between the stiffened plate and the vertical part is reduced.

[0018] 2. In the pilot oil source valve bracket of the utility model, the edges of the two stiffened plates away from the horizontal portion are concave arc surfaces, forming a groove, which can reduce the stress between the stiffened plates and the horizontal portion and avoid cracking of the weld between the stiffened plates and the horizontal portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0020] Figure 1 This is the front view of the traditional pilot oil source valve bracket;

[0021] Figure 2 This is a top view of a conventional pilot oil source valve bracket;

[0022] Figure 3 This is a front view of the overall structure of Embodiment 1 of the utility model;

[0023] Figure 4 This is a side view of the overall structure of Embodiment 1 of the utility model;

[0024] Figure 5 This is a top view of the overall structure of Embodiment 1 of the utility model;

[0025] Figure 6 This is a front view of the first stiffened plate of Example 1 of the utility model;

[0026] Figure 7 This is a top view of the first stiffened plate of Example 1 of the utility model;

[0027] Among them, 1. horizontal part, 2. vertical part, 3. stiffened plate, 4. bracket mounting hole, 5. first stiffened plate, 6. second stiffened plate, 7. unloading groove, 8. pilot oil source valve mounting hole;

[0028] 5-1. First fixed surface, 5-2. Second fixed surface, 5-3. Upper edge surface, 5-4. Front edge surface, 5-5. Arc surface, 5-6. Inclined surface. DETAILED DESCRIPTION

[0029] Example 1

[0030] This embodiment provides a pilot oil source valve bracket, such as Figure 3-Figure 5As shown, it includes an L-shaped plate, including a horizontal part 1 and a vertical part 2 vertically connected, a stiffened plate is arranged between the horizontal part 1 and the vertical part 2, the stiffened plate is welded and fixed to the horizontal part 1 and the vertical part 2, and two bracket mounting holes 4 are arranged on the vertical part, wherein, in order to avoid stress concentration at the connection position of the horizontal part 1 and the vertical part 2, an arc-shaped transition part is arranged at the connection position of the horizontal part 1 and the vertical part 2, and the horizontal part 1 and the vertical part 2 are connected by the arc-shaped transition part. In this embodiment, compared with the traditional pilot oil source valve bracket, the size of the L-shaped plate is increased, that is, the length and width of the horizontal part 1 are respectively greater than the length and width of the horizontal part of the traditional bracket, and the length and width of the vertical part are respectively greater than the length of the vertical part of the traditional bracket. and width, and the plate thickness of the horizontal portion 1 and the vertical portion 2 is increased, the thickness of the horizontal portion 1 is 7mm-9mm, preferably 8mm, the thickness of the vertical portion 2 is 7mm-9mm, preferably 8mm. In order to meet the structural strength requirements, the width of the reinforced plate must also be increased accordingly. After the width of the reinforced plate is increased, if the traditional solution is adopted to set the reinforced plate in the middle position of the horizontal portion 1 and the vertical portion 2, the connecting part of the reinforced plate and the vertical portion passes through the space between the two bracket mounting holes 4, and the distance between the reinforced plate and the two bracket mounting holes 4 is relatively close, the bottom welding point of the reinforced plate will produce stress concentration, which is easy to cause fracture, and the resulting weld is easy to affect the normal operation of the two bracket mounting holes.

[0031] Therefore, in this embodiment, two stiffening plates are provided, namely a first stiffening plate 5 and a second stiffening plate 6, and the two stiffening plates are respectively located between the horizontal portion 1 and the vertical portion 2 on both sides, that is, one end of the first stiffening plate 5 is fixed on one side of the vertical portion 2, and the other end is fixed on one side of the horizontal portion 1, and one end of the second stiffening plate 6 is fixed on the other side of the vertical portion 2, and the other end is fixed on the other side of the horizontal portion 1.

[0032] Since the distance between the two bracket mounting holes 4 and the center line of the vertical part is consistent with that of the traditional bracket, after the first stiffened plate 5 and the second stiffened plate 6 are respectively arranged on both sides of the horizontal part 1 and the vertical part 2, the distance between the first stiffened plate 5, the second stiffened plate 6 and the bracket mounting hole 4 is greater than the distance between the stiffened plate and the bracket mounting hole 4 when the stiffened plate is arranged in the middle, and the distance between the first stiffened plate 5, the second stiffened plate 6 and the bracket mounting hole 4 will avoid stress concentration at the bottom welding points of the first stiffened plate 5 and the second stiffened plate 6, and avoid fracture. Moreover, this distance ensures that the welds between the first stiffened plate 5, the second stiffened plate 6 and the vertical part 2 will not affect the normal operation of the bracket mounting hole 4.

[0033] The first stiffened plate 5 and the second stiffened plate 6 are provided with a relief groove 7 at the end of the lower edge surface away from the horizontal part and close to the vertical part. Preferably, the relief groove 7 is a semicircular relief groove with a radius of 4mm-6mm, preferably 5mm. By providing the relief groove 7, the frequency response during the welding process can be reduced, and the stress at the bottom welding point between the two stiffened plates and the vertical part can be reduced.

[0034] The first stiffened plate 5 and the second stiffened plate 6 have the same structure and are symmetrically arranged relative to the center line of the L-shaped plate. Specifically, the first stiffened plate is taken as an example for explanation: Figure 6 As shown, the outer surface of the first stiffened plate includes two parallel plate surfaces, and a first fixed surface 5-1 and a second fixed surface 5-2 are provided between the two plate surfaces. The first fixed surface 5-1 is welded and fixed to the lower surface of the end of the horizontal portion 1 away from the vertical portion 2, and the second fixed surface 5-2 is welded and fixed to the inner side surface of the vertical portion 2. An upper edge surface 5-3 is provided between one end of the first fixed surface 5-1 and the second fixed surface 5-2, and the upper edge surface 5-3 is a side surface close to the horizontal portion 1. A front edge surface 5-4 parallel to the second fixed surface 5-2 is provided at the other end of the first fixed surface 5-1. A lower edge surface is provided between the bottom end of the front edge surface 5-4 and the bottom end of the second fixed surface 5-2, and the lower edge surface is a side surface away from the horizontal portion. A load-relief groove is provided at the end of the lower edge surface close to the vertical portion.

[0035] In this embodiment, in order to ensure the welding strength between the second fixing surface and the vertical portion, as shown in FIG. Figure 7 As shown, the outer edge of the second fixing surface 5-2 is provided with a groove, and preferably, the groove is a 45° groove.

[0036] The lower edge surface is divided into two parts, one of which is an inwardly concave arc surface 5-5, that is, an arc surface concave toward the horizontal portion, forming a groove structure. Preferably, the radius of the arc surface is 600 mm. By setting the inwardly concave arc surface 5-5, the stress between the stiffened plate and the horizontal portion 1 can be reduced, and the weld cracking between the stiffened plate and the horizontal portion 1 can be avoided. One end of the inwardly concave arc surface 5-5 is connected to the bottom of the front edge surface 5-4, and the other end is provided with an inclined surface 5-6. One end of the inclined surface 5-6 is connected to the inwardly concave arc surface 5-5, and the other end is connected to the bottom of the second fixed surface 5-2. The inclined surface 5-6 is provided with a relief groove 7.

[0037] The horizontal portion is provided with a pilot oil source valve mounting hole 8. Preferably, three pilot oil source valve mounting holes 8 are provided for fixing the pilot oil source valve. The setting mode of the pilot oil source valve mounting holes 8 matches the pilot oil source valve and will not be described in detail here.

[0038] The bracket of this embodiment avoids stress concentration and fracture, and reduces the frequency response generated during welding.

[0039] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A pilot oil source valve bracket, comprising an L-shaped plate consisting of a horizontal portion and a vertical portion, wherein the vertical portion is provided with a bracket mounting hole, characterized in that: A first stiffened plate and a second stiffened plate are arranged in parallel between the horizontal part and the vertical part. One end of the first stiffened plate is fixed to one side of the vertical part, and the other end is fixed to one side of the horizontal part. One end of the second stiffened plate is fixed to the other side of the vertical part, and the other end is fixed to the other side of the horizontal part. A unloading groove is provided at the bottom of the end where the first stiffened plate and the second stiffened plate connect to the vertical part.

2. A pilot oil source valve support as claimed in claim 1, characterized in that: The side surfaces of the first stiffened plate and the second stiffened plate away from the horizontal portion have concave arc surfaces to form a groove structure.

3. A pilot oil source valve support as claimed in claim 1, characterized in that: The unloading groove is a semicircular unloading groove.

4. A pilot oil source valve support as claimed in claim 3, characterized in that: The diameter of the semicircular unloading groove is 4mm-6mm.

5. A pilot oil source valve support as claimed in claim 1, characterized in that: The horizontal portion is provided with a pilot oil source valve mounting hole.

6. A pilot oil source valve support as claimed in claim 1, characterized in that: The thickness of the horizontal portion is 7 mm to 9 mm.

7. A pilot oil source valve support as claimed in claim 1, characterized in that: The thickness of the vertical portion is 7mm-9mm.

8. A pilot oil source valve support as claimed in claim 1, characterized in that: An arc-shaped transition portion is arranged at the connection position of the vertical portion and the horizontal portion, and the vertical portion is vertically connected to the horizontal portion through the transition portion.

9. A pilot oil source valve support as claimed in claim 1, characterized in that: The outer surfaces of the first and second stiffened plates each include two parallel plate surfaces, a first fixing surface and a second fixing surface are provided between the two plate surfaces, the first fixing surface is fixed to the lower surface of the end of the horizontal portion away from the vertical portion, the second fixing surface is fixed to the inner side surface of the vertical portion, an upper edge surface is provided between one end of the first fixing surface and the second fixing surface, a front edge surface parallel to the second fixing surface is provided at the other end, a lower edge surface is provided between the bottom end of the front edge surface and the bottom end of the second fixing surface, and a unloading groove is provided on the end of the lower edge surface close to the vertical portion.

10. A pilot oil source valve support as claimed in claim 1, characterized in that: The first stiffened plate and the second stiffened plate are welded and fixed to the vertical portion, and outer edges of the surfaces for welding and fixing to the vertical portion are provided with grooves.

Images