Large workpiece hinged shaft fixing device

Abstract

The utility model discloses a large workpiece hinged shaft fixing device which comprises a large workpiece, a hinged shaft, a positioning baffle, a shaft end cover plate and a fastening bolt. The outer wall, exposed out of the large workpiece, of the hinged shaft is provided with a baffle groove. One end of the positioning baffle is embedded in the baffle groove; a threaded hole is formed in a panel of the positioning baffle; a panel of the shaft end cover plate is provided with a through hole and arranged at the end of the hinged shaft in a sleeving mode, and the shaft end cover plate is in bolted connection with the positioning baffle. The process that an original baffle structure fixing device needs to punch a threaded hole in a large workpiece is simplified, an original baffle is transformed into the positioning baffle with the threads, the shaft end cover plate is additionally arranged on the outer side of the positioning baffle, the shaft end cover plate is fixed to the positioning baffle, the defects that the threaded hole of the large workpiece is difficult to machine, and cost is high are overcome, and machining efficiency is improved. The defect that the hinged shaft cannot rotate in the shaft hole in the prior art is overcome, and the situation that when the hinged shaft rotates under special conditions, a bolt is broken or a baffle groove in the hinged shaft is damaged is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to large workpiece machining technical field more specifically relates to a large workpiece hinge shaft fixing device. BACKGROUND

[0002] In mechanical engineering, there are many large workpieces between the shaft parts are hinged. The shaft will be subjected to axial and radial load and circumferential torque. The shaft end of the hinge shaft is usually fixed by using the shaft end baffle plate, and the threaded hole of the fixed baffle plate is opened on the large workpiece. However, when the large workpiece has axial movement, the baffle plate will impact the bolt. At the same time, when the large workpiece rotates in a small range, the force between the shaft and the baffle plate will be easy to cause the bolt to break or the shaft baffle plate groove to be damaged; if the lubrication is not timely, the baffle plate will cause dry grinding to the shaft, which will cause the shaft to wear greatly and accelerate the scrap of the shaft.

[0003] Therefore, how to provide a large workpiece shaft end fixing device which can not process threaded holes without changing the existing structure of the shaft, changes the fixed shaft end baffle plate from the large workpiece to the outside of the shaft end baffle plate, prevents the shaft from rotating in special circumstances, and prevents the bolt from breaking or the shaft baffle plate groove from being damaged, is a problem that needs to be solved by those skilled in the art. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a large workpiece hinge shaft fixing device, which aims at solving the above technical problems.

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

[0006] A large workpiece hinge shaft fixing device, comprising a large workpiece, a hinge shaft, a positioning baffle plate, a shaft end cover plate and a fastening bolt;

[0007] Both ends of the hinge shaft penetrate the shaft hole of the large workpiece, and the end thereof is exposed to the shaft hole; the hinge shaft exposed to the outer wall of the large workpiece is provided with a baffle plate groove;

[0008] One end of the positioning baffle plate is embedded in the baffle plate groove; a threaded hole is opened on the panel of the positioning baffle plate;

[0009] A through hole is opened on the panel of the shaft end cover plate and is sleeved on the end of the hinge shaft exposed to the large workpiece, an anchor hole corresponding to the threaded hole is opened on the shaft end cover plate, and the threaded end of the fastening bolt penetrates the anchor hole and the threaded hole in sequence to bolt the shaft end cover plate and the positioning baffle plate.

[0010] The utility model discloses the beneficial effect of technical scheme is, through the axle end cover plate and the positioning baffle bolt connection, need not set up the threaded hole on the large workpiece, positioning baffle and axle end cover plate can rotate simultaneously with the hinge shaft, avoided the hinge shaft through the positioning plate and the large workpiece bolt connection and cannot rotate under special circumstances previously, or the hinge shaft rotation can make the connecting bolt fracture of the positioning baffle and the large workpiece between the occurrence, can effectively prevent the bolt fracture or baffle groove damage when the axle rotates under special circumstances.

[0011] Preferably, the positioning baffle is provided with two blocks, the two positioning baffles are symmetrically arranged along the two sides of the hinge shaft axis, and the two positioning baffles are bolted with the axle end cover plate. One axle end cover plate is bolted with two positioning baffles, which ensures the firmness of the axle end cover plate at the hinge shaft end and ensures the effective rotation of the axle end cover plate with the hinge shaft.

[0012] Preferably, the side panel of the axle end cover plate facing the positioning baffle and the circumferential through hole thereof are fixed with an arc-shaped plate, and the inner arc surface of the arc-shaped plate abuts against the outer wall of the hinge shaft. The arc-shaped plate can ensure the tightness of the connection between the axle end cover plate and the hinge shaft.

[0013] Preferably, the arc-shaped plate is located between the anchoring holes on the two sides of the hinge shaft axis of the axle end cover plate.

[0014] Preferably, the outer periphery of the arc-shaped plate forms an L-shaped groove with the side wall of the axle end cover plate, and the side wall of the positioning baffle away from the large workpiece is tightly matched with the groove wall of the L-shaped groove of the axle end cover plate. The positioning baffle and the axle end cover plate form a stable structure as a whole through the bolt.

[0015] Preferably, the thickness of the arc-shaped plate is less than the thickness of the positioning baffle.

[0016] Preferably, a gasket is embedded between the nut end of the fastening bolt and the side wall of the axle end cover plate away from the large workpiece. The gasket can increase the sealing performance and fastening effect between the bolt and the axle end cover plate.

[0017] Preferably, the side panel of the positioning baffle abuts against the side wall of the large workpiece. The axle end cover plate, the positioning baffle and the large workpiece are effectively connected, and the positioning effect of the positioning baffle on the hinge shaft is ensured.

[0018] Via the technical scheme, compared with the prior art, the utility model discloses provide a kind of large workpiece hinge shaft fixing device, cancel the process that original baffle structure fixing device needs to punch on large workpiece, change original baffle into positioning baffle, positioning baffle is positioned to hinge shaft, increase shaft end cover plate outside positioning baffle, make shaft end cover plate fixed on positioning baffle, avoid the drawback that large workpiece is processed thread hole, and then reduce the processing difficulty of large workpiece, shorten processing cycle, to improve production efficiency;Optimize the shortcoming that hinge shaft is not rotatable before, prevent the bolt fracture or hinge shaft upper baffle groove damage condition when hinge shaft rotates under special circumstances. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or 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 embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0020] Figure 1 The sectional view of the shaft end fixing device provided by the present application is shown in the figure.

[0021] Figure 2 The enlarged schematic view of part A in the figure. Figure 1

[0022] Figure 3 The front view of the positioning baffle provided by the present application is shown in the figure.

[0023] Figure 4 The side view of the shaft end fixing device provided by the present application is shown in the figure.

[0024] Figure 5 The stepped sectional view of the shaft end cover plate provided by the present application is shown in the figure.

[0025] Among them,

[0026] 1-large workpiece; 2-positioning baffle; 21-thread hole; 3-gasket; 4-fastening bolt; 5-hinge shaft; 6-shaft end cover plate; 61-anchor hole; 62-arc plate. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the present application will be described clearly and completely in the following, obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. ​

[0028] The utility model discloses a large -scale workpiece hinge shaft fixing device, install at the end of hinge shaft, the process that the original baffle structure fixing device needs to punch on large -scale workpiece is simplified, change the original baffle into the positioning baffle, prevent the bolt fracture condition from happening in the process of hinge shaft rotation,

[0029] The embodiment is realized through the following ways:

[0030] Including including large -scale workpiece 1, hinge shaft 5, positioning baffle 2, axle end cover plate 6 and fastening bolt 4;

[0031] The both ends of hinge shaft 5 are through the axle hole of large -scale workpiece 1, and its end exposed axle hole;Hinge shaft 5 exposed large -scale workpiece 1's outer wall is provided with baffle slot;

[0032] One end of positioning baffle 2 is fitted in baffle slot;Threaded hole 21 is provided on the panel of positioning baffle 2;

[0033] The panel of axle end cover plate 6 is provided with through hole and is set in the end of hinge shaft 5 exposed large -scale workpiece 1, and the anchor hole 61 corresponding with threaded hole 21 is provided on axle end cover plate 6, and the threaded end of fastening bolt 4 is sequentially through anchor hole 61 and threaded hole 21 to bolt axle end cover plate 6 with positioning baffle 2.

[0034] In the embodiment, positioning baffle 2 is provided with two, and the two positioning baffles 2 are symmetrically arranged along the axis of hinge shaft 5, and the two positioning baffles 2 are bolted with axle end cover plate 6.

[0035] As shown in Figure 1 and 2 , the positioning baffle is symmetrically arranged up and down along the hinge shaft, the baffle slot is provided on the outer wall of the hinge shaft, the positioning baffle is a square plate, one end of the positioning baffle arranged up and down is embedded in the baffle slot, the through hole of the axle end cover plate is sleeved on the hinge shaft, and the positioning baffle is bolted through the fastening bolt. When the hinge shaft rotates, the positioning baffle and the axle end cover plate will rotate with the hinge shaft at the same time, which can prevent the fastening bolt from breaking.

[0036] In order to further optimize the above technical scheme, the side panel of the axle end cover plate 6 facing the positioning baffle 2 and the circumferential direction of the through hole thereof are fixed with an arc plate 62, and the inner arc surface of the arc plate 62 abuts against the outer wall of the hinge shaft 5.

[0037] As shown in Figure 1 and 5 , the axle end cover plate is sleeved on the hinge shaft through the through hole, the inner arc surface of the arc plate abuts against the outer wall of the hinge shaft, which can ensure the tightness of the connection between the axle end cover plate and the hinge shaft.

[0038] In order to further optimize the above technical scheme, the arc plate 62 is located between the anchor holes 61 on the two sides of the axle end cover plate 6 relative to the axis of the hinge shaft 5.

[0039] To further optimize the above technical solutions, the outer periphery of the arc-shaped plate 62 and the side wall of the shaft end cover plate 6 form an L-shaped groove, and the side wall of the positioning baffle 2 away from the large workpiece 1 is pressed and matched with the groove wall of the L-shaped groove of the shaft end cover plate 6.

[0040] To further optimize the above technical solutions, the thickness of the arc-shaped plate 62 is smaller than the thickness of the positioning baffle 2. In actual practice, the thickness of the arc-shaped plate needs to be 2-3mm smaller than the thickness of the positioning baffle, so that the installation of the shaft end cover plate can be facilitated, and the shaft end cover plate will not be directly pressed and matched with the large workpiece, so that the hinge shaft can rotate.

[0041] As shown in Figure 1 The positioning baffle is partially embedded in the baffle groove, and the remaining part is located in the L-shaped groove. The thickness of the positioning baffle and the arc-shaped plate is the same, the arc-shaped plate and the baffle can be closely attached and located on one side panel of the shaft end cover plate, and the integrity of the fixing device is provided.

[0042] To further optimize the above technical solutions, improve the sealing performance and connection effect between the shaft end cover plate and the positioning baffle, a gasket 3 is embedded between the nut end of the fastening bolt 4 and the side wall of the shaft end cover plate 6 away from the large workpiece 1.

[0043] To further optimize the above technical solutions, ensure that the fixing device is closely combined with the large workpiece, and the one side panel of the positioning baffle 2 abuts against the side wall of the large workpiece 1.

[0044] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts of each embodiment can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0045] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A large workpiece hinge shaft fixing device characterized by, Large workpiece (1), hinge shaft (5), positioning baffle (2), shaft end cover plate (6) and fastening bolt (4) are included. Both ends of the hinge shaft (5) penetrate the shaft hole of the large workpiece (1), and the end thereof is exposed outside the shaft hole; the hinge shaft (5) exposed outside the outer wall of the large workpiece (1) is provided with a baffle groove; One end of the positioning baffle (2) is fitted in the baffle groove; the panel of the positioning baffle (2) is provided with a threaded hole (21); The panel of the shaft end cover plate (6) is provided with a through hole and is sleeved on the end of the hinge shaft (5) exposed outside the large workpiece (1), the shaft end cover plate (6) is provided with an anchor hole (61) corresponding to the threaded hole (21), and the threaded end of the fastening bolt (4) penetrates the anchor hole (61) and the threaded hole (21) in sequence to bolt the shaft end cover plate (6) and the positioning baffle (2).

2. The large workpiece hinge shaft fixing device according to claim 1, characterized in that, The positioning baffle (2) is provided with two pieces, and the two positioning baffles (2) are symmetrically arranged along both sides of the hinge shaft (5) axis, and the two positioning baffles (2) are bolted with the shaft end cover plate (6).

3. A large workpiece hinge shaft fixing device according to claim 2, characterized in that, The side panel of the shaft end cover plate (6) facing the positioning baffle (2) is fixed with an arc plate (62) opposite the through hole thereof in the circumferential direction, and the inner arc surface of the arc plate (62) abuts against the outer wall of the hinge shaft (5).

4. The large workpiece hinge shaft fixing device according to claim 3, characterized in that, The arc plate (62) is located between the anchor holes (61) of the shaft end cover plate (6) opposite the hinge shaft (5) axis.

5. A large workpiece hinge shaft fixing device according to claim 4, characterized in that, The outer periphery of the arc plate (62) forms an L-shaped groove with the side wall of the shaft end cover plate (6), and the side wall of the positioning baffle (2) away from the large workpiece (1) is tightly matched with the groove wall of the L-shaped groove of the shaft end cover plate (6).

6. A large workpiece hinge shaft fixing device according to claim 5, characterized in that, The thickness of the arc plate (62) is less than the thickness of the positioning baffle (2).

7. The apparatus of claim 1 wherein, The nut end of the fastening bolt (4) is provided with a gasket (3) between the side wall of the shaft end cover plate (6) away from the large workpiece (1).

8. The large workpiece hinge shaft fixing device according to claim 1, characterized in that, The side panel of the positioning baffle (2) abuts against the side wall of the large workpiece (1).

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