CN202294958U

CN202294958U - Steering oil cylinder support

Info

Publication number: CN202294958U
Application number: CN2011203967812U
Authority: CN
Inventors: 谭建; 汪勇
Original assignee: Guangxi Liugong Machinery Co Ltd
Current assignee: Guangxi Liugong Machinery Co Ltd
Priority date: 2011-10-18
Filing date: 2011-10-18
Publication date: 2012-07-04
Anticipated expiration: 2021-10-18

Abstract

The utility model relates to a steering oil cylinder support for articulated steering machinery. To overcome the defects that the cracking of welding seams of the conventional welded steering oil cylinder support is caused, and cracks easily occur at the welded seam during the fitting welding between the conventional cast steering oil cylinder support and a vehicle frame, the utility model provides a steering oil cylinder support. The support is integrally formed by casting, and comprises a front U-shaped fork and a welded connecting part positioned at the tail part of the U-shaped fork, wherein the U-shaped fork comprises an upper fork plate and a lower fork plate, which are parallel to each other, and an upper pin hole and a lower pin hole which are coaxial are formed on the upper fork plate and the lower fork plate respectively; and the support is characterized in that the welded connecting part is fishtail-shaped and gradually thinned in thickness from front to back. By adopting the fishtail shape and the welded connecting part gradually thinning from front to back, the welding seam between the support and the vehicle frame during the welding process is lengthened, the bonding strength between the support and the vehicle frame is enhanced, in addition, the stress is improved and becomes uniform, and the cracks in the support as well as between the support and the vehicle frame due to the nonuniform stress can be further avoided.

Description

Turn to cylinder support

Technical field

The utility model relates to a kind of cylinder support that turns to of articulation steering machinery.

Background technology

Radial type machinery turns to the bearing of oil cylinder that various forms are arranged by turning to oil cylinder to promote to turn to and install.One of them turns to cylinder support for welded type, and welded type turns to cylinder support to be welded into by plate to turn to cylinder support to be welded on the vehicle frame again.Welded type turns to the part of cylinder support simple, simple and convenient processing method.But resistance to shock loads well, the bearing stress of welding is not allowed to be easy to do evenly, occurs the situation of weld cracking easily, causes its yield rate and service life not long.Another kind of for cast type turns to cylinder support, the shock resistance well of cast type bearing avoids occurring cracking, but its during with the vehicle frame welding still difficulty or ease accomplish that stress is even, the crack appears in easy weld at bearing and vehicle frame.

The utility model content

The technical matters that the utility model will solve is; Turn to weld cracking of cylinder support own and existing cast type to turn to cylinder support and vehicle frame to fit to existing welded type and weld the shortcoming that is prone to occur the crack in the commissure; And providing a kind of stress even, cast type not easy to crack after the welding turns to cylinder support.

The technical scheme that the utility model adopts is: construct a kind of cylinder support that turns to; By casting integrated moulding; Comprise anterior U-shaped fork and be positioned at the portion that is welded to connect of U-shaped fork-tail portion, the U-shaped fork comprise be parallel to each other go up fork plate and lower fork plate, on pitch on plate and the lower fork plate and respectively establish coaxial pin-and-hole; The portion of being welded to connect is fish tail shape, and its thickness is attenuation gradually from front to back.The utility model through fish tail shape by forward direction after width increase gradually but the thickness shape and structure of attenuation gradually makes the weld seam of the portion of being welded to connect and vehicle frame longer, Joint strenght strengthens, and also improves the stress problem on the welding rear support simultaneously.

As the further improvement of technology, a side that is welded to connect portion is to be used for piecing together the attachment face take with vehicle frame, attachment face comprise one vertical main piece together the face of taking and with main piece together the face of taking vertical time piece together the face of taking.Piece together the face of taking through orthogonal primary and secondary on the bearing, when connecing with vehicle frame assembly joint welding, can form orthogonal weld seam, this is not easy to cause stress concentration, produces tear seam in the commissure.

As the further improvement of technology, the main face of taking of piecing together is taken the face intersection and is provided with groove with time piecing together.Groove is set pieces together at bearing and vehicle frame and avoid vehicle frame when taking and piece together and take the corner angle of face intersection, avoid the situation that occurs interfering.

As the further improvement of technology, be that the said portion of being welded to connect is provided with the cavity that on attachment face, is recessed to form.But the cavity saving in material is set, reduces the weight of bearing.

As the further improvement of technology, the chamber wall thickness of said cavity is impartial, and the chamber wall thickness is impartial, and the material rectangular distribution can realize that distribution of stress is even relatively, improves the casting quality.

As the further improvement of technology, on pitch on the last lower plane of plate and lower fork plate and be equipped with annular boss around pin-and-hole.Annular boss is set can increase the length of pin-and-hole, increases the area of contact of hole wall and king pin, makes pin-and-hole be difficult for being worn.Can reduce the machinework plane of casting back pin, oil cylinder attachment face, when saving machinework, also guarantee the pin installation quality simultaneously.

As the further improvement of technology, on pitch plate last plane be provided with and be used to prevent that the setting circle that king pin rotates from taking.After king pin was installed, the registration device of its end and setting circle were taken and are joined, and king pin can not rotated.Setting circle is taken integrally casting moulding can be with last fork sheet metal forming the time, also can be welded to behind the last fork sheet metal forming on the fork plate.

The beneficial effect that the utility model compared with prior art has is: through the fish tail shape and the portion that is welded to connect of attenuation gradually from front to back, increase the weld seam of bearing and vehicle frame welding, improve and the Joint strenght of vehicle frame.Also improve stress in addition, make stress even, can prevent bearing itself and and vehicle frame between the uneven crack that produces of stress.

Description of drawings

Below in conjunction with the description of drawings specific embodiments.

Fig. 1 is that the utility model turns to oil cylinder seat structure scheme drawing.

Fig. 2 is the lateral side view that the utility model turns to cylinder support.

Fig. 3 is the birds-eye view that the utility model turns to cylinder support.

Fig. 4 is the medial side view that the utility model turns to cylinder support.

Fig. 5 be Fig. 4 A-A to cutaway view.

Reference numeral:

U-shaped fork 1, setting circle takes 2, on pitch annular boss 3 on the plate, on pitch plate 4, on pitch annular boss 5 under the plate; Annular boss 6 on the lower fork plate, lower fork plate 7, annular boss 8 under the lower fork plate, on pitch plate pin-and-hole 9, lower fork plate pin-and-hole 10 is welded to connect portion 11, cavity 12, the main assembly taken face 21, groove 22, face 23 is taken in inferior assembly.

The specific embodiment

As shown in Figure 1; Turn to cylinder support by casting integrated moulding in the present embodiment, it comprises U-shaped fork 1 and the portion that is welded to connect 11 that is positioned at U-shaped fork rear portion, and is as shown in Figure 2; Wherein U-shaped fork 1 comprises the upward fork plate 4 and lower fork plate 7 that is parallel to each other; Last fork plate 4 is provided with pin-and-hole 9, and lower fork plate 7 is provided with down pin-and-hole 10, and last pin-and-hole 9 is coaxial isometrical with following pin-and-hole 10.The upper and lower surfaces of last fork plate 4 be respectively arranged with center on pin-and-hole 9 on the fork plate annular boss 3 with on annular boss 5 under the fork plate, the upper and lower surfaces of lower fork plate 7 is respectively arranged with on the lower fork plate of pin-and-hole 10 down annular boss 8 under the annular boss 6 and lower fork plate.The side view profile that is welded to connect portion 11 is fish tail crust shape, from the afterbody of U-shaped fork backward width expand gradually, thickness is attenuation gradually from front to back then; As shown in Figure 3; A side that is welded to connect portion 11 is to piece together the attachment face of taking with vehicle frame, and this attachment face comprises orthogonal main face of taking 21 and the inferior face 23 of taking of piecing together pieced together, and the wherein main face of taking 21 of piecing together is a perpendicular; Be parallel to each other with the axis of last pin-and-hole 9 and following pin-and-hole 10, be provided with groove 22 with the inferior intersection that takes face 23 of piecing together at the main face of taking 21 of piecing together.Shown in Figure 5 like Fig. 4, the cavity 12 of phase sunken inside is arranged on attachment face, make the chamber wall thickness of cavity 12 roughly consistent.The main assembly takes face 21 and takes face 23 and when bearing is installed, match with two orthogonal planes of vehicle frame and weld the vertical weld seam of formation with time piecing together.

After making king pin be installed in pin-and-hole 9 and the following pin-and-hole 10, can not rotate; Last fork plate 4 is provided with setting circle and takes 2; Knock hole after king pin is installed on the otic placode of its upper end is then taken 2 with setting circle and is matched; Fixedly king pin prevents its rotation, and it can be when the bearing casting and the casting integrated moulding of bearing that setting circle takes 2, also can be to be welded on the bearing after the bearing casting is accomplished.

Claims

1. one kind turns to cylinder support; By casting integrated moulding; Comprise anterior U-shaped fork (1) and be positioned at the portion that is welded to connect (11) of U-shaped fork-tail portion, said U-shaped fork (1) comprise be parallel to each other go up fork plate (4) and lower fork plate (7), on pitch and respectively establish coaxial last pin-and-hole (9) and following pin-and-hole (10) on plate (4) and the lower fork plate (7); It is characterized in that the described portion (11) that is welded to connect is fish tail shape, its thickness is attenuation gradually from front to back.

2. the cylinder support that turns to according to claim 1; It is characterized in that a said side that is welded to connect portion (11) is to be used for piecing together the attachment face take with vehicle frame, said attachment face comprise one vertical main piece together takes face (21) and with main piece together take face (21) vertical time piece together the face (23) of taking.

3. the cylinder support that turns to according to claim 2 is characterized in that said main the assembly taking face (21) and taking face (23) intersection and be provided with groove (22) with time piecing together.

4. the cylinder support that turns to according to claim 2 is characterized in that the said portion (11) that is welded to connect is provided with the cavity (12) that on attachment face, is recessed to form.

5. the cylinder support that turns to according to claim 4 is characterized in that the chamber wall thickness of said cavity (12) is impartial.

6. the cylinder support that turns to according to claim 1; It is characterized in that being respectively arranged with on said the last lower plane of going up fork plate (4) the annular boss (5) under the annular boss (3) and last fork plate of going up on the fork plate, annular boss (8) under annular boss (6) and the lower fork plate on the lower fork plate of pin-and-hole (10) under the last lower plane of said lower fork plate (7) is provided with and centers on around last pin-and-hole (9).

7. the cylinder support that turns to according to claim 1 is characterized in that said last plane of going up fork plate (4) is provided with and is used to prevent that the setting circle of king pin rotation from taking (2).

8. the cylinder support that turns to according to claim 7 is characterized in that said setting circle is taken (2) and last fork plate (4) is welded and connected for casting integrated moulding or with last fork plate (4).