Stamping pump guide vane bearing and cover plate pressing equipment

Abstract

The utility model discloses stamping pump guide vane bearing and cover plate pressing equipment which comprises a base, a fixing seat is arranged on the top face of the base, a mandrel capable of floating up and down relative to the fixing seat is arranged in the middle of the fixing seat, and the mandrel comprises a positioning section used for fixing a guide vane bearing and protruding out of the side wall of the fixing seat. A fixed pressing column corresponding to a notch of the guide vane bearing is arranged below the positioning section, and a movable pressing column which corresponds to the notch of the guide vane bearing and can move up and down is arranged above the positioning section. The pressing device has the advantages that the pressing difficulty of the guide vane bearing and the guide vane cover plate is reduced, pressing is easy, operation is convenient, and the pressing efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to a pressing device, in particular to a pressing device for a guide vane bearing and a cover plate of a stamping pump. Background Art

[0002] A protruding annular wall is formed in the middle of the existing ram pump guide vane cover plate, and the annular wall encloses a bearing positioning hole. The guide vane bearing is installed and fixed in the bearing positioning hole, and an interference fit is adopted between the outer ring of the guide vane bearing and the bearing positioning hole, or a limiting medium is added. When the temperature of the pump conveying medium rises, due to the different thermal expansion coefficients of the material at the bearing positioning hole and the material of the sliding bearing, at high temperatures, the bearing that only adopts an interference fit positioning structure may become loose, affecting the fixation reliability of the guide vane bearing.

[0003] A double-acting positioning structure for an inner liner is disclosed in a Chinese patent application with publication number CN201517517U. The existing technology is unreliable in positioning the outer ring of a dynamic bearing. The utility model includes an outer ring of a sliding bearing and a guide vane front cover plate. The guide vane front cover plate has a bearing positioning hole, and the outer ring of the sliding bearing is installed in the bearing positioning hole.

[0004] A concave-convex structure is preset between the outer wall of the guide vane bearing and the side wall of the bearing positioning hole, which makes assembly very difficult. A large external force needs to be applied to the guide vane bearing to press it into the bearing positioning hole to achieve the concave-convex structure fit. It is difficult to tighten the guide vane bearing, and the relative position between the guide vane bearing and the bearing positioning hole is prone to deviation, making positioning difficult. It is difficult to achieve fast and accurate concave-convex fit, and the efficiency is low. Utility Model Content

[0005] The utility model aims to provide a device for pressing the guide vane bearing and the cover plate of a stamping pump, which solves the problems of the prior art such as the great pressing difficulty and low pressing efficiency.

[0006] The above technical purpose of the present utility model is mainly solved through the following technical solutions: a stamping pump guide vane bearing and cover plate pressing device, including a base, a fixed seat is provided on the top surface of the base, a core shaft that can float up and down relative to the fixed seat is provided in the middle of the fixed seat, the core shaft includes a positioning section for fixing the guide vane bearing and protruding from the side wall of the fixed seat, a fixed pressure column corresponding to the notch of the guide vane bearing is provided below the positioning section, and a movable pressure column corresponding to the notch of the guide vane bearing and movable up and down is provided above the positioning section.

[0007] As a further preferred technical solution of the present invention, a longitudinally arranged strip groove is provided in the middle of the fixing seat and cooperates with the core shaft. The core shaft includes a fixing section that cooperates with the inner wall of the strip groove. The positioning section is provided at the end of the fixing section and is located outside the strip groove.

[0008] As a further preferred technical solution of the present invention, a movable groove is provided on the side wall of the fixed seat, which penetrates the side wall of the strip groove. The upper and lower ends of the movable groove are flush with the upper and lower ends of the strip groove. A movable block connected to the fixed section is provided in the movable groove.

[0009] As a further preferred technical solution of the present invention, the end of the fixed section is provided with a mounting portion that passes through the movable block and is connected to the movable block by bolts.

[0010] As a further preferred technical solution of the present invention, grooves are provided on both sides of the bottom of the movable slot, and a return spring is provided in the groove to abut against the bottom of the movable block.

[0011] As a further preferred technical solution of the present invention; a first limiting groove cooperating with the fixed pressure column is provided on the top surface of the base, a laterally extending support portion is provided on the top of the fixed seat, and a second limiting groove cooperating with the movable pressure column is provided on the support portion.

[0012] Therefore, the utility model has the characteristics of reducing the difficulty of pressing the guide vane bearing and the guide vane cover, making the pressing simple and easy to operate, and effectively improving the pressing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of part of the structure;

[0015] Figure 3 yes Figure 1 A partial structural cross-sectional view;

[0016] Figure 4 This is a state diagram of the guide vane bearing and the guide vane cover plate in the present invention when they are pressed tightly. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0018] like Figure 1-4As shown, a device for pressing the guide vane bearing and cover plate of a stamping pump comprises a base 1, a fixed seat 2 is provided on the top surface of the base 1, a core shaft 3 which can float up and down relative to the fixed seat 2 is provided in the middle of the fixed seat 2, the core shaft 3 comprises a positioning section 31 for fixing the guide vane bearing and protruding from the side wall of the fixed seat 2, a fixed pressure column 11 corresponding to the notch of the guide vane bearing is provided below the positioning section 31, a movable pressure column 12 corresponding to the notch of the guide vane bearing and movable up and down is provided above the positioning section 31, a first limiting groove 13 cooperating with the fixed pressure column 11 is provided on the top surface of the base 1, a laterally extending support portion 25 is provided at the top of the fixed seat 2, and a second limiting groove 251 cooperating with the movable pressure column 12 is provided on the support portion 25.

[0019] The above-mentioned base supports the fixed seat, the core shaft is arranged on the fixed seat, the core shaft can float up and down on the fixed seat, the guide vane bearing is sleeved on the positioning section, the bearing positioning hole arranged in the middle of the guide vane cover plate is sleeved on the guide vane bearing, and a plurality of evenly distributed notches are engraved on the side wall of the outer ring of the guide vane bearing. The positioning section of the core shaft can position the guide vane bearing and support the guide vane bearing through the positioning section, and the assembly is relatively simple.

[0020] The fixed pressure column below the positioning section can cooperate with the movable pressure column above the positioning section, and move closer to each other to press the guide vane cover and the guide vane bearing on the positioning section, and squeeze the side wall of the bearing mounting hole of the guide vane cover, so that the side wall of the bearing mounting hole of the guide vane cover is deformed and clamped with the notch on the side wall of the outer ring of the guide vane bearing, and the guide vane cover is fixedly connected to the guide vane bearing. After pressing both sides, the guide vane cover and the guide vane bearing can be directly rotated. The guide vane cover and the guide vane bearing rotate under the support of the core shaft. The pressing operation is simple and efficient, and the bearing mounting hole of the guide vane cover is clamped with the notch on the guide vane bearing through deformation, thereby strengthening the connection strength between the bearing mounting hole of the guide vane cover and the guide vane bearing, thereby realizing axial and circumferential limitation of the guide vane bearing.

[0021] The above-mentioned movable pressure column is arranged above the positioning section of the core shaft, and the upper end of the movable pressure column is connected to the external press. The movable pressure column can be moved up and down in the second limit groove on the support part by driving the external press, so as to approach or move away from the guide vane bearing. The fixed pressure column is fixed in the first limit groove on the top surface of the base. When the movable pressure column is driven to press the guide vane bearing downward, the guide vane bearing, the guide vane cover plate and the positioning section of the core shaft move downward synchronously until the guide vane bearing and the guide vane cover plate abut against the upper end of the fixed pressure column and are squeezed by the fixed pressure column. At this time, the lower end of the movable pressure column and the upper end of the fixed pressure column squeeze the position of the guide vane cover plate near the guide vane bearing notch until the side wall of the bearing mounting hole of the guide vane cover plate is deformed and stuck in the guide vane bearing notch, thereby completing the clamping action. The clamping operation between the guide vane bearing and the guide vane cover plate is simple and efficient, which effectively improves the clamping efficiency of the guide vane bearing and the guide vane cover plate.

[0022] like Figure 3As shown, a strip groove 21 is longitudinally arranged in the middle of the fixed seat 2 and cooperates with the core shaft 3. The core shaft 3 includes a fixed section 32 that cooperates with the inner wall of the strip groove 21. The positioning section 31 is provided at the end of the fixed section 32 and is located outside the strip groove 21. A movable groove 22 that passes through the side wall of the strip groove 21 is provided on the side wall of the fixed seat 2. The upper and lower ends of the movable groove 22 are flush with the upper and lower ends of the strip groove 21. A movable block 23 connected to the fixed section 32 is provided in the movable groove 22. A mounting portion 33 that passes through the movable block 23 and is connected to the movable block 23 by bolts is provided at the end of the fixed section 32. Grooves 221 are provided on both sides of the bottom of the movable groove 22. A return spring 24 that abuts against the bottom of the movable block 23 is provided in the groove 221.

[0023] The above-mentioned strip groove is arranged longitudinally, the fixed section of the core shaft is fitted on the inner side of the strip groove, and the positioning section extends outside the strip groove to fix the guide vane bearing and the guide vane cover plate. The movable groove runs through both sides of the strip groove, and the movable block is located in the movable groove and can move longitudinally and fix the core shaft, so that the core shaft can float up and down along the movable groove under the support of the movable block, and the moving direction of the core shaft is guided and limited to avoid deviation in the moving direction of the core shaft, which may cause deviation in the clamping position of the movable pressure column and the fixed pressure column, affecting the clamping quality.

[0024] The core shaft is passed through the mounting portion on the movable block and is fixedly connected to the movable block by bolts and gaskets. The positioning section of the core shaft can be designed into multiple different sizes according to the inner diameter of the inner ring of the guide vane bearing to increase the scope of application. The core shaft can be fixed or disassembled on the movable block by bolts, which is easy to replace and has a wide range of applications. The mounting groove at the bottom of the movable groove limits the reset spring so that the reset spring remains in the groove and abuts against the bottom of the movable block. After the movable block moves downward, it can squeeze the reset spring and return to its original position through the reset spring, so that the core shaft is pressed by the movable pressure column until it contacts the fixed pressure column and the tightening is completed. It can automatically return to its original position through the action of the reset spring to facilitate the next tightening and facilitate the replacement and maintenance of the reset spring 5.

[0025] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A device for pressing the guide vane bearing and cover plate of a ram pump, characterized by: The invention comprises a base (1), a fixing seat (2) is provided on the top surface of the base (1), a core shaft (3) which can float up and down relative to the fixing seat (2) is provided in the middle of the fixing seat (2), the core shaft (3) comprises a positioning section (31) for fixing the guide vane bearing and protruding from the side wall of the fixing seat (2), a fixed pressure column (11) corresponding to the notch of the guide vane bearing is provided below the positioning section (31), and a movable pressure column (12) corresponding to the notch of the guide vane bearing and movable up and down is provided above the positioning section (31).

2. The device for pressing the guide vane bearing and cover plate of a ram pump according to claim 1, characterized in that: A strip groove (21) is longitudinally arranged in the middle of the fixing seat (2) and cooperates with the core shaft (3). The core shaft (3) includes a fixing section (32) that cooperates with the inner wall of the strip groove (21). The positioning section (31) is provided at the end of the fixing section (32) and is located outside the strip groove (21).

3. The device for pressing the guide vane bearing and cover plate of a ram pump according to claim 2, characterized in that: A movable groove (22) penetrating the side wall of the strip groove (21) is provided on the side wall of the fixing seat (2); the upper and lower ends of the movable groove (22) are flush with the upper and lower ends of the strip groove (21); and a movable block (23) connected to the fixed section (32) is provided in the movable groove (22).

4. The device for pressing the guide vane bearing and cover plate of a ram pump according to claim 3, characterized in that: The end of the fixed section (32) is provided with a mounting portion (33) that passes through the movable block (23) and is connected to the movable block (23) via bolts.

5. The device for pressing the guide vane bearing and cover plate of a ram pump according to claim 3, characterized in that: Grooves (221) are provided on both sides of the bottom of the movable slot (22), and a return spring (24) is provided in the groove (221) and abuts against the bottom of the movable block (23).

6. The device for pressing the guide vane bearing and cover plate of a ram pump according to claim 1, characterized in that: A first limiting groove (13) cooperating with the fixed pressure column (11) is provided on the top surface of the base (1); a supporting portion (25) extending laterally is provided on the top end of the fixed seat (2); and a second limiting groove (251) cooperating with the movable pressure column (12) is provided on the supporting portion (25).

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