An adjustable pitch V-block

Abstract

The utility model relates to an adjustable-distance V-shaped supporting iron, belonging to the technical field of large-tonnage shaft part supporting machining. The utility model solves the problems of long production cycle and poor part machining stability in the prior art. Technical points: a concave positioning groove is formed in the left side of the supporting plate, and a convex positioning table is arranged on the right side of the supporting plate; a fixed bracket is arranged in the concave positioning groove, a moving bracket is installed on the convex positioning table, a fixed seat is installed on the right side of the supporting plate, a rotating screw right end portion extends into the fixed seat inner cavity, a rotating sleeve is threadedly connected with the rotating screw, the rotating sleeve is fixed on the moving bracket, and a handle is connected with the rotating screw right end; the inner sides of the fixed bracket and the moving bracket form a V-shaped working surface, and a workpiece backing plate is fixed on the V-shaped working surface. The utility model is simple to install, reduces surface scratches caused by rigid contact, improves shaft part machining quality, and reduces large-tonnage shaft part production and manufacturing cycle.

Description

Technical Field

[0001] This utility model relates to the field of support processing technology for large-tonnage shaft components, specifically a V-shaped pad with adjustable spacing. Background Technology

[0002] In hydro-generator sets, the turbine shaft and the generator shaft are major structural components with relatively large structures and dimensions, and the shaft sizes vary. During the specific machining and alignment process, V-shaped shims are required for support and fixation. Currently, most of the V-shaped shims used in factory machining are fixed types, which cannot meet the load-bearing requirements of shaft parts with different diameters, resulting in poor versatility. Furthermore, different projects require different sizes of V-shaped shims, leading to high material costs.

[0003] In existing technologies, fixed shims make hard contact with the supporting shafts. During dynamic operation, additional impact loads can cause the stress at the contact point to rise sharply, far exceeding the allowable stress of the material. Long-term operation can easily lead to "crushing deformation" on the contact surface of the shims. When the unit is running, the shaft components will experience "axial or radial thermal expansion" due to frictional heat and changes in ambient temperature. However, the support height of the fixed shims is fixed and cannot be dynamically adjusted according to the amount of deformation. If the flatness of the foundation surface is insufficient or the shims themselves have machining errors, it will cause "loose" contact between the shims and the shaft components, requiring repeated disassembly, reassembly, and grinding of the shims for correction, thus extending the debugging cycle. Fixed structures are prone to deterioration of the contact state over time, which in turn undermines operational stability.

[0004] It severely affects the surface finish of shaft components, and can have irreversible effects on the machining quality of shaft components.

[0005] Therefore, there is an urgent need to propose a V-shaped pad with adjustable spacing to solve the problems of long production cycle and poor part processing stability in the existing technology. Utility Model Content

[0006] In view of the above facts, in order to solve the problems of long production cycle and poor part processing stability in the prior art, this utility model designs an adjustable V-shaped pad.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An adjustable spacing V-shaped pad includes a fixed bracket, a support plate, a fixed base, a handle, a rotating screw, a rotating sleeve, and a movable bracket;

[0009] The support plate has a concave positioning groove on the left side and a convex positioning platform on the right side.

[0010] The fixed bracket is set in the concave positioning groove, the movable bracket is installed on the convex positioning platform, the fixed seat is installed on the right side of the support plate, the right end of the rotating screw extends into the inner cavity of the fixed seat, the rotating sleeve is threadedly connected to the rotating screw, the rotating sleeve is fixed on the movable bracket, and the handle is connected to the right end of the rotating screw.

[0011] The inner sides of the fixed bracket and the movable bracket form a V-shaped working surface, and the workpiece pad is fixed on the V-shaped working surface.

[0012] Furthermore: a fixing seat positioning groove is provided at the center axis of the right end of the support plate, and a positioning hole is provided on the fixing seat positioning groove;

[0013] The cylindrical positioning shaft section provided below the fixed seat is inserted into the positioning hole, the bottom plane of the fixed seat is fixed on the positioning groove of the fixed seat, and the end baffle is fixed on the right end face of the fixed seat.

[0014] Furthermore, the fixed bracket and the support plate are horizontally positioned by locating pins.

[0015] Furthermore: pressure plates are installed on the upper and lower sides of the support plate and fixed by anchor bolts and nuts.

[0016] Furthermore, the right side of the support plate is provided with two parallel sliding grooves.

[0017] Furthermore, the groove is a T-shaped groove.

[0018] Furthermore: the workpiece pads are copper pads, and there are a total of 4 pieces.

[0019] Furthermore, the anchor bolts are T-shaped.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model can realize the support work of large-tonnage shaft structural components. The mechanism components are detachable, which ensures the efficiency of processing large-tonnage shaft parts and reduces the production cycle of large-tonnage shaft parts.

[0022] 2. This utility model solves the problem of universality in the processing and bearing capacity of large-tonnage shaft parts, and reduces the production and manufacturing cost of multiple sets of V-shaped brackets.

[0023] 3. This utility model ensures accurate support position for large-tonnage shaft components while utilizing anchor bolts to reliably tighten them with the support plate, thereby improving the stability of machining large-tonnage shaft components.

[0024] 4. This utility model uses a rotating lead screw for helical transmission, which has low noise and can realize the rapid positioning and alignment of V-shaped shims for large-tonnage shaft parts, thereby improving the adjustment efficiency of the equipment and reducing the labor intensity of workers.

[0025] 5. This utility model is easy to install. It uses a workpiece pad to protect large-tonnage shaft parts, reduces surface scratches caused by rigid contact with the pad, improves the processing quality of shaft parts, and ensures the surface finish of the machined surfaces of shaft parts. Attached Figure Description

[0026] Figure 1 This is the front view of the present invention;

[0027] Figure 2 for Figure 1 Top view;

[0028] Figure 3 This is an assembly diagram of the support plate and the fixing base of this utility model;

[0029] Figure 4 for Figure 1 K-direction view;

[0030] Figure 5 This is a front view of the support plate in this utility model;

[0031] Figure 6 for Figure 5 AA view;

[0032] Figure 7 for Figure 5 BB view.

[0033] In the diagram: 1-Fixed bracket, 2-Support plate, 3-Positioning pin, 4-Fixed seat, 5-Handle, 6-Rotating screw, 7-Rotating sleeve, 8-Moving bracket, 9-Workpiece pad, 10-Pressure plate, 11-Anchor bolt, 12-Nut, 13-End baffle, 201-Slide groove, 202-Concave positioning groove, 203-Convex positioning platform, 204-Positioning hole, 205-Fixed seat positioning groove, 401-Cylindrical positioning shaft section. Detailed Implementation

[0034] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0035] The terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0038] Example: An adjustable V-shaped pad according to this example includes a fixed bracket 1, a support plate 2, a fixed base 4, a handle 5, a rotating screw 6, a rotating sleeve 7, and a movable bracket 8;

[0039] The support plate 2 has a concave positioning groove 202 on the left side and a convex positioning platform 203 on the right side;

[0040] The fixed bracket 1 is set in the concave positioning groove 202, the movable bracket 8 is installed on the convex positioning platform 203, the fixed seat 4 is installed on the right side of the support plate 2, the right end of the rotating screw 6 extends into the internal cavity of the fixed seat 4, the rotating sleeve 7 is threadedly connected to the rotating screw 6, the rotating sleeve 7 is fixed on the movable bracket 8 by bolts, and the handle 5 is connected to the right end of the rotating screw 6 by a flat key to achieve axial positioning;

[0041] The inner sides of the fixed bracket 1 and the movable bracket 8 form a V-shaped working surface, and the workpiece pad 9 is fixed on the V-shaped working surface.

[0042] More specifically: a fixing seat positioning groove 205 is provided at the center axis of the right end of the support plate 2, and a positioning hole 204 is provided on the fixing seat positioning groove 205;

[0043] The cylindrical positioning shaft section 401 provided below the fixed seat 4 is inserted into the positioning hole 204. The bottom plane of the fixed seat 4 is fixed to the positioning groove 205 of the fixed seat by bolts. The end baffle 13 is fixed to the right end face of the fixed seat 4 by bolts.

[0044] More specifically: the fixed bracket 1 and the support plate 2 are horizontally positioned by the positioning pin 3.

[0045] More specifically: the pressure plate 10 is set on the upper and lower sides of the support plate 2 and is fixed by the anchor bolts 11 and nuts 12, so that the support plate 2 does not move in the horizontal and vertical directions.

[0046] More specifically: the right side of the support plate 2 is provided with two parallel sliding grooves 201.

[0047] More specifically: the groove 201 is a T-shaped groove.

[0048] More specifically: the workpiece pad 9 is arranged on both sides along the axis of the support plate 2.

[0049] More specifically: the workpiece pad 9 is a copper pad, and there are 4 of them.

[0050] More specifically: the anchor bolt 11 is T-shaped.

[0051] More specifically: After installing handle 5, adjust the horizontal distance between fixed bracket 1 and movable bracket 8 according to the actual diameter of shaft components, so that the horizontal distance of the V-shaped working surface meets the load-bearing requirements of shaft components.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; as long as there is no structural conflict, the features in the specific embodiments disclosed in this application can be combined with each other in any way, and will not cause the substance of the corresponding technical solutions to deviate from the scope of the technical solutions of this utility model.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A V-shaped pad with adjustable spacing, characterized in that, Includes a fixed bracket (1), a support plate (2), a fixed seat (4), a handle (5), a rotating screw (6), a rotating sleeve (7), and a movable bracket (8); The support plate (2) has a concave positioning groove (202) on the left side and a convex positioning platform (203) on the right side. The fixed bracket (1) is set in the concave positioning groove (202), the movable bracket (8) is installed on the convex positioning platform (203), the fixed seat (4) is installed on the right side of the support plate (2), the right end of the rotating screw (6) extends into the internal cavity of the fixed seat (4), the rotating sleeve (7) is threadedly connected to the rotating screw (6), the rotating sleeve (7) is fixed on the movable bracket (8), and the handle (5) is connected to the right end of the rotating screw (6). The inner sides of the fixed bracket (1) and the movable bracket (8) form a V-shaped working surface, and the workpiece pad (9) is fixed on the V-shaped working surface.

2. The adjustable-spacing V-shaped pad according to claim 1, characterized in that, The support plate (2) has a fixed seat positioning groove (205) at the center axis of the right end, and a positioning hole (204) is provided on the fixed seat positioning groove (205). The cylindrical positioning shaft section (401) provided below the fixed seat (4) is inserted into the positioning hole (204), the bottom plane of the fixed seat (4) is fixed on the positioning groove (205) of the fixed seat, and the end baffle (13) is fixed on the right end face of the fixed seat (4).

3. The adjustable-spacing V-shaped pad according to claim 1, characterized in that, The fixed bracket (1) and the support plate (2) are horizontally positioned by the positioning pin (3).

4. The adjustable-spacing V-shaped pad according to claim 1, characterized in that, The pressure plate (10) is set on the upper and lower sides of the support plate (2) and fixed by anchor bolts (11) and nuts (12).

5. The adjustable-spacing V-shaped pad according to claim 1, characterized in that, The support plate (2) has two parallel sliding grooves (201) on its right side.

6. The adjustable-spacing V-shaped pad according to claim 5, characterized in that, The slide (201) is a T-shaped slide.

7. The adjustable-spacing V-shaped pad according to claim 1, characterized in that, The workpiece pad (9) is a copper pad, and there are 4 of them.

8. The adjustable-spacing V-shaped pad according to claim 4, characterized in that, The anchor bolt (11) is T-shaped.

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