An adjustable shaft seat for cast steel molding

Abstract

This utility model discloses an adjustable shaft holder for cast steel molding, including a shaft base and a shaft. A cross groove is provided on the top surface of the shaft base, and bolt holes are spaced apart within the cross groove. A bushing is bolted above the bolt holes, and a shaft groove is provided inside the bushing, with the shaft itself housed within the groove. This utility model, by providing multiple bolt holes within the cross groove, allows for flexible adjustment of the shaft's center distance according to production needs, meeting the production requirements of castings of different sizes. It enables 2-hole and 4-hole shaft holders to share a single base, improving the device's versatility and production adaptability, significantly reducing the number of shaft holders required and storage space needed, and greatly lowering production costs.

Description

Technical Field

[0001] This utility model relates to a shaft seat, and more particularly to an adjustable shaft seat for cast steel molding, belonging to the field of cast steel parts processing technology. Background Technology

[0002] In the production of large cast steel parts, circumferential castings such as gear rings, flanges, retaining rings, and partition sleeves are usually designed as full circles, half circles (1 / 2 circle), or quarter circles (1 / 4 circle) depending on installation or transportation requirements. For example, castings with a diameter of more than 10 meters are often designed as 1 / 4 circles, and the full circle assembly is completed by connecting the mating surfaces with bolts. During the molding process, 2-hole or 4-hole shafts are used in conjunction with shaft seats to scrape the circumferential shape. However, traditional shaft holders have the following problems: ① Parallelism error: Manual correction of shaft parallelism has deviations, and stress deformation is easily generated during welding, causing the scraped semi-circular planes to not be on the same horizontal plane, affecting the quality of castings; ② Cost and versatility: 2-hole and 4-hole shaft holders are not interchangeable and need to be manufactured and stored separately, increasing manufacturing costs and storage space; ③ Wear and maintenance: After long-term use, shaft holders and shafts wear down, increasing parallelism error, which may lead to dimensional defects or even scrapping of castings. Moreover, the traditional fixed structure cannot be partially replaced, increasing maintenance costs; ④ Insufficient flexibility: Traditional shaft holders cannot flexibly adjust the shaft center distance, making it difficult to meet the production needs of castings of various sizes and reducing production efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an adjustable shaft seat for casting steel molding. By setting multiple bolt holes at intervals in the cross groove, the center distance of the shaft can be flexibly adjusted according to the production needs of castings of different sizes, thereby extending the service life of the device and reducing maintenance costs.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] An adjustable shaft seat for cast steel molding includes a shaft base and a shaft. The top surface of the shaft base is provided with a cross groove, and bolt holes are provided at intervals in the cross groove. A bushing is connected above the bolt holes by bolts, and the shaft is provided inside the bushing.

[0006] The cross groove is located at the center of the top of the shaft base, and the bushing is located in the cross groove.

[0007] The cross groove is 150mm wide and 80mm deep.

[0008] The bushing is provided with a shaft groove for shaft insertion, and the size of the shaft groove matches the size of the shaft.

[0009] The positive and beneficial effects of this utility model are:

[0010] 1. This utility model, by setting multiple bolt holes in the cross groove, can flexibly adjust the center distance of the shaft according to production needs, meet the production needs of castings of different sizes, realize the sharing of a base for 2-hole and 4-hole shaft seats, improve the versatility and production adaptability of the device, significantly reduce the number of shaft seats to be manufactured and the storage space, and greatly reduce production costs.

[0011] 2. The shaft sleeve of this utility model is connected to the shaft base by bolts. When the shaft sleeve is worn and cannot be used, a new shaft sleeve can be replaced separately without scrapping the entire shaft base, which extends the service life of the device and reduces maintenance costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 Top view;

[0014] Wherein: 1-shaft base, 2-cross groove, 3-bolt hole, 4-shaft sleeve, 5-bolt, 6-shaft. Detailed Implementation

[0015] The present invention will be further explained and described below with reference to the accompanying drawings:

[0016] See the example. Figures 1-2 An adjustable shaft seat for cast steel molding includes a shaft base 1 and a shaft 6. A cross groove 2 is provided on the top surface of the shaft base 1. Bolt holes 3 are provided at intervals in the cross groove 2. A bushing 4 is connected above the bolt holes 3 by bolts 5. The shaft 6 is provided in the bushing 4.

[0017] The cross groove 2 is located at the center of the top of the shaft base 1, and the bushing 4 is located in the cross groove 2.

[0018] The width of the cross groove 2 is 150mm and the depth is 80mm.

[0019] A shaft groove is provided inside the bushing 4 for inserting the shaft 6, and the size of the shaft groove matches the size of the shaft 6.

[0020] In the above description, there are nine bolt holes 3. One bolt hole is set in the center of the cross groove, and six bolt holes are set around the bolt hole.

[0021] In the above description, the shaft seat 1 is cast using ZG310-570 material.

[0022] In the above description, the shaft sleeve 2 is made of 45# forging to increase wear resistance, and a shaft groove needs to be machined inside for inserting the shaft.

[0023] In the above description, bolt 3 is used to fix the shaft sleeve to the shaft seat and is easy to disassemble.

[0024] In the above description, by setting multiple bolt holes (reserved holes) in the cross groove, it is convenient to change the center distance of the shaft between 300 and 200.

[0025] Working principle:

[0026] ① First, cast and produce a shaft base, and machine a cross groove on the upper end face of the shaft base;

[0027] ② Holes with different spacings of 200-300 are pre-machined in the cross groove to meet the needs of different products;

[0028] ③ Machining and manufacturing the shaft sleeve, which is then connected and fixed to the shaft seat by bolts.

[0029] ④ The shaft sleeve can be replaced at any time after it wears out, and the center distance of the shaft can also be switched back and forth according to different hole positions.

[0030] This utility model, by setting multiple bolt holes in the cross groove, can flexibly adjust the center distance of the shaft according to production needs, meet the production needs of castings of different sizes, realize the sharing of a base for 2-hole and 4-hole shaft seats, improve the versatility and production adaptability of the device, significantly reduce the number of shaft seats to be manufactured and the storage space required, and greatly reduce production costs.

Claims

1. An adjustable shaft seat for cast steel molding, comprising a shaft base (1) and a shaft (6), characterized in that: The top surface of the shaft base (1) is provided with a cross groove (2), and bolt holes (3) are provided at intervals in the cross groove (2). A bushing (4) is connected above the bolt holes (3) by bolts (5), and a shaft (6) is provided in the bushing (4).

2. The adjustable shaft seat for cast steel molding according to claim 1, characterized in that: The cross groove (2) is located at the center of the top of the shaft base (1), and the bushing (4) is located in the cross groove (2).

3. The adjustable shaft seat for cast steel molding according to claim 1, characterized in that: The cross groove (2) has a width of 150 mm and a depth of 80 mm.

4. The adjustable shaft seat for cast steel molding according to claim 1, characterized in that: The bushing (4) is provided with a shaft groove for inserting the shaft (6), and the size of the shaft groove matches the size of the shaft (6).

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