阅读说明：本技术 一种铁路起重机用可变距跨双铁路线支垫装置及使用方法 (Variable-pitch span double-railway-line support pad device for railway crane and use method ) 是由 许俊 张新峰 何刚 弯丹玮 朱启航 李云飞 周莉 于 2021-01-18 设计创作，主要内容包括：本发明提出了一种铁路起重机用可变距跨双铁路线支垫装置及使用方法,通过设置跨线梁、一挂耳和至少两支撑座,通过铁路起重机支腿起吊并将支撑座放置于铁路线两条钢轨上,由支撑座支撑铁路起重机,可有效的将铁路起重机的支腿反力传递到钢轨上方,由于钢轨本身具有很强的承载能力,因此铁路起重机的支腿可得到相对可靠的支撑基础,消除地基塌陷的安全隐患,保证设备及人身的安全。支撑座与跨线梁球副连接能适应铁路线两条钢轨高度不同造成的误差,确保跨线梁垂直支撑于支撑座之上；支撑座与跨线梁在水平面内可转动连接,从而改变两个支撑座之间的宽度间距,满足铁路起重机在不同间距的铁路双线的支垫需求；设置滑动支座,满足不同支腿跨距的要求。(The invention provides a variable-pitch span double-railway-line support pad device for a railway crane and a use method thereof. The connection of the supporting seat and the span beam ball pair can adapt to errors caused by different heights of two steel rails of a railway line, and the span beam is guaranteed to be vertically supported on the supporting seat; the supporting seats are rotatably connected with the span line beam in the horizontal plane, so that the width distance between the two supporting seats is changed, and the requirement of the railway crane on supporting pads of railway double lines with different distances is met; and the sliding support is arranged to meet the requirements of different supporting leg spans.)

1. The utility model provides a two railway line way support pad devices are striden to variable pitch for railway crane which characterized in that: which comprises a cross beam (1), a suspension loop (2) and at least two supporting seats (3), wherein,

the suspension loop (2) is connected with the over-line beam (1) and is used for connecting the railway crane supporting legs outwards;

the supporting seat (3) is arranged below the cross beam (1) and connected with the cross beam, two supporting positions (30) are arranged at the bottom of the supporting seat, and the supporting positions (30) are used for supporting on two steel rails (0) of a railway line.

2. The variable-pitch span double-rail-line bolster device for a railway crane according to claim 1, wherein: the supporting seat (3) is rotatably connected with the over-line beam (1) in the horizontal plane and is connected with the ball pair.

3. The variable-pitch span double-rail-line bolster device for a railway crane according to claim 2, wherein: also comprises a core plate (4), a centripetal joint bearing (5) and a fixed shaft (6), wherein,

a counter bore (40) is formed in the middle of the core disc (4), and the core disc (4) is fixedly arranged in the center of the supporting seat (3);

the radial spherical plain bearing (5) is arranged in the counter bore (40) and is coaxially fixed with the core disc (4);

the fixed shaft (6) is fixed with the cross beam (1) and fixed with the radial spherical plain bearing (5).

4. The variable-pitch span double-rail-line bolster device for a railway crane according to claim 3, wherein: also comprises a thrust knuckle bearing (7), wherein,

and the thrust joint bearing (7) is arranged in the counter bore (40) and is coaxially fixed with the center disc (4), and the thrust joint bearing (7) is arranged at the bottom of the radial joint bearing (5) and is mutually abutted against the radial joint bearing.

5. The variable-pitch span double-rail-line bolster device for a railway crane according to claim 1, wherein: also comprises a sliding support (8), wherein,

the hanging lug (2) is fixed on the sliding support (8), and the sliding support (8) is connected with the surface of the over-line beam (1) in a sliding mode.

6. The variable-pitch span double-rail-line bolster device for a railway crane according to claim 5, wherein: also comprises two reverse hook lifting hooks (9), wherein,

the span beam (1) is a wide-flange box beam;

two reverse hook lifting hooks (9) are fixed on the sliding support (8) and hook the bottom surfaces of the flange plates at two sides of the over-line beam (1).

7. The variable-pitch span double-rail-line bolster device for a railway crane according to claim 6, wherein: also comprises two guide wheels (10), wherein,

the two guide wheels (10) are respectively nested on the two reverse hook lifting hooks (9) and are in rolling connection with the side surfaces of the two flange plates of the over-line beam (1).

8. The variable-pitch span double-rail-line bolster device for a railway crane according to claim 6, wherein: also comprises a sliding plate (11), wherein,

one side of the sliding plate (11) is fixed with the sliding support (8), and the other side is connected with the upper surface of the over-line beam (1) in a sliding way.

9. The method of using a variable-pitch span dual-rail-line bolster device for a railway crane according to claim 5, wherein: the hanging lug (2) is arranged on the sliding support (8), the inner spherical base plate (12) is fixed on the sliding support (8), and an inner spherical groove is formed in the middle of the inner spherical base plate; the end part of the support leg of the railway crane is spherical, and the support leg is hinged with the suspension loop (2) and selectively and rotatably connected with the inner spherical base plate (12).

10. The method of using a variable-pitch span dual-rail-line bolster device for a railway crane according to claim 1, wherein: comprises the following steps of (a) carrying out,

s1, the support legs of the railway crane are hinged with the hangers (2);

s2, expanding and contracting the support legs of the railway crane to enable the two support positions (30) on the support seat (3) to be preliminarily aligned with the two steel rails (0) of the railway line;

s3, the supporting seat (3) is driven to descend by the oil cylinder on the supporting leg of the railway crane, so that the two supporting positions (30) on the supporting seat (3) are propped against the two steel rails (0) of the railway line.

Technical Field

The invention relates to the field of railway cranes, in particular to a variable-pitch span double-railway-line support pad device for a railway crane and a using method thereof.

Background

Along with the continuous increase of railway operation mileage in China, the special rescue construction equipment of the railway crane is widely applied. When the railway crane is used for hoisting operation, the supporting legs need to be reliably supported on a firm foundation so as to avoid the overturning of the railway crane caused by the collapse of the foundation. However, under the restriction of various conditions of rescue or construction sites, how to find a reliable supporting point for the supporting leg of the railway crane is always the biggest problem of site operation. This not only influences the efficiency of field operation, has directly influenced the operation safety of railway crane more.

Therefore, the variable-pitch double-railway-line-crossing support pad device for the railway crane is developed, and has very important significance for improving the working efficiency of the railway crane, eliminating the potential safety hazard of foundation collapse and ensuring the safety of equipment and personnel.

Disclosure of Invention

In view of the above, the invention provides a variable-pitch span double-railway-line support pad device for a railway crane and a use method thereof, so that a support leg of the railway crane can be conveniently and quickly supported above two parallel railway lines with different intervals, thereby improving the working efficiency of the railway crane, eliminating the potential safety hazard of foundation collapse and ensuring the safety of equipment and personnel.

The technical scheme of the invention is realized as follows:

in one aspect, the invention provides a variable-pitch span double-railway-line support cushion device for a railway crane, which comprises a span line beam (1), a suspension loop (2) and at least two support seats (3),

the suspension loop (2) is connected with the over-line beam (1) and is used for connecting the railway crane supporting legs outwards;

the supporting seat (3) is arranged below the cross beam (1) and connected with the cross beam, two supporting positions (30) are arranged at the bottom of the supporting seat, and the supporting positions (30) are used for supporting on two steel rails (0) of a railway line.

On the basis of the technical scheme, preferably, the supporting seat (3) is rotatably connected with the overline beam (1) in a horizontal plane and is connected with the ball pair.

Further preferably, the device also comprises a center plate (4), a radial spherical plain bearing (5) and a fixed shaft (6), wherein,

a counter bore (40) is formed in the middle of the core disc (4), and the core disc (4) is fixedly arranged in the center of the supporting seat (3);

the radial spherical plain bearing (5) is arranged in the counter bore (40) and is coaxially fixed with the core disc (4);

the fixed shaft (6) is fixed with the cross beam (1) and fixed with the radial spherical plain bearing (5).

Even more preferably, the device further comprises a thrust knuckle bearing (7), wherein,

and the thrust joint bearing (7) is arranged in the counter bore (40) and is coaxially fixed with the center disc (4), and the thrust joint bearing (7) is arranged at the bottom of the radial joint bearing (5) and is mutually abutted against the radial joint bearing.

On the basis of the technical scheme, preferably, the cross line beam (1) is of a bilateral symmetry structure, and the two support seats (3) are arranged at two ends of the cross line beam (1) in bilateral symmetry.

On the basis of the above technical solution, preferably, the device further comprises a sliding support (8), wherein,

the hanging lug (2) is fixed on the sliding support (8), and the sliding support (8) is connected with the surface of the over-line beam (1) in a sliding mode.

Further preferably, the device also comprises two reverse hook lifting hooks (9), wherein,

the span beam (1) is a wide-flange box beam;

two reverse hook lifting hooks (9) are fixed on the sliding support (8) and hook the bottom surfaces of the flange plates at two sides of the over-line beam (1).

Further preferably, the device also comprises two guide wheels (10), wherein,

the two guide wheels (10) are respectively nested on the two reverse hook lifting hooks (9) and are in rolling connection with the side surfaces of the two flange plates of the over-line beam (1).

Even more preferably, a slide (11) is included, wherein,

one side of the sliding plate (11) is fixed with the sliding support (8), and the other side is connected with the upper surface of the over-line beam (1) in a sliding way.

Further preferably, the novel hanging ring also comprises an inner spherical base plate (12), the hanging lug (2) is arranged on the sliding support (8), the inner spherical base plate (12) is fixed on the sliding support (8), and an inner spherical groove is formed in the middle of the inner spherical base plate; the end part of the support leg of the railway crane is spherical, and the support leg is hinged with the suspension loop (2) and selectively and rotatably connected with the inner spherical base plate (12).

In a second aspect, the present invention provides a method for using the variable-pitch span double-rail line support device for a railway crane according to the first aspect of the present invention, comprising the steps of,

s1, the support legs of the railway crane are hinged with the hangers (2);

s2, expanding and contracting the support legs of the railway crane to enable the two support positions (30) on the support seat (3) to be preliminarily aligned with the two steel rails (0) of the railway line;

s3, the supporting seat (3) is driven to descend by the oil cylinder on the supporting leg of the railway crane, so that the two supporting positions (30) on the supporting seat (3) are propped against the two steel rails (0) of the railway line.

Compared with the prior art, the variable-pitch span double-railway-line support pad device for the railway crane and the use method have the following beneficial effects:

(1) by arranging the cross beam, the suspension loop and the at least two support seats, the support seats are lifted by the support legs of the railway crane and are placed on the two steel rails of the railway line, the railway crane is supported by the support seats, the counter force of the support legs of the railway crane can be effectively transmitted to the upper parts of the steel rails, and the steel rails have strong bearing capacity, so the support legs of the railway crane can obtain a relatively reliable support foundation, the potential safety hazard of foundation collapse is eliminated, and the safety of equipment and personnel is ensured;

(2) the connection of the supporting seat and the span beam ball pair can adapt to errors caused by different heights of two steel rails of a railway line, and the span beam is guaranteed to be vertically supported on the supporting seat; the supporting seats are rotatably connected with the span line beam in the horizontal plane, so that the width distance between the two supporting seats is changed, and the requirement of the railway crane on supporting cushions of railway double lines with different distances is met;

(3) the sliding support is arranged, so that the requirements of different supporting leg spans can be met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a top plan view of a variable-pitch span dual-rail line bolster apparatus for a railway crane of the present invention;

FIG. 2 is a front cross-sectional view of a variable-pitch span dual-rail-line bolster apparatus for a railway crane of the present invention;

FIG. 3 is an enlarged view of the oval area;

fig. 4 is a sectional view of the shoe portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in figure 1 and combined with figures 2-4, the variable-pitch span double-railway-line support pad device for the railway crane comprises a span line beam 1, a suspension loop 2, at least two support seats 3, a center plate 4, a radial spherical joint bearing 5, a fixed shaft 6, a thrust spherical joint bearing 7, a sliding support 8, two reverse hook lifting hangers 9, two guide wheels 10, a sliding plate 11 and an inner spherical base plate 12

The span beam 1 plays a role in bearing. Specifically, in this embodiment, the flying beam 1 has a bilateral symmetry structure, and the two support bases 3 are arranged at two ends of the flying beam 1 in bilateral symmetry. Specifically, in order to improve the stress performance and reduce the weight, the cross beam 1 adopts a variable-section wide-flange box beam.

And the hanging lug 2 is connected with the over-line beam 1 and is used for connecting the railway crane supporting legs outwards. Specifically, railway crane landing leg tip is provided with waist round hole, hangers 2 adopts screw rod and nut to constitute, through passing waist round hole with the screw rod, and the fastening of rethread nut realizes detachable connection.

The supporting seat 3 is arranged below the cross beam 1 and connected with the cross beam, two supporting positions 30 are arranged at the bottom of the supporting seat, and the supporting positions 30 are used for being supported on two steel rails 0 of a railway line.

In practical use, because the distance between the two-line rails can be different, the supporting seat 3 and the flying beam 1 can be rotatably connected in the horizontal plane, so that the rotation between the flying beam 1 and the supporting seat 3 is satisfied. Through rotating between the span line beam 1 and the supporting seat 3, the slope between the span line beam 1 and the two steel rails 0 of the railway line is changed, so that the width distance between the two supporting seats 3 is changed, and the support pad requirements of the railway crane on the two steel rails 0 of the railway line with different distances are met. Specifically, the invention is provided with a heart plate 4, a radial spherical plain bearing 5 and a fixed shaft 6, wherein,

a counter bore 40 is arranged in the middle of the center plate 4 and used for arranging a radial spherical plain bearing 5; the core disc 4 is fixedly arranged in the center of the supporting seat 3;

the radial spherical plain bearing 5 is arranged in the counter bore 40 and is coaxially fixed with the core disc 4;

the fixed shaft 6 is fixed with the over-line beam 1 and fixed with the radial spherical plain bearing 5.

Thus, the support base 3 can rotate around the fixed shaft 6 through the radial spherical plain bearing 5.

In practical use, the height of two steel rails 0 of a railway line has an error, and in order to ensure that the span beam 1 is vertically supported on the support base 3, the support base 3 is connected with the span beam 1 through a ball pair. Specifically, the present invention provides a thrust oscillating bearing 7 in which,

and the thrust joint bearing 7 is arranged in the counter bore 40 and is coaxially fixed with the core disc 4, and the thrust joint bearing 7 is arranged at the bottom of the radial joint bearing 5 and is mutually abutted.

Therefore, the supporting seat 3 can rotate left and right relative to the fixed shaft 6 through the thrust joint bearing 7 and can horizontally rotate around the fixed shaft 6 through the radial joint bearing 5.

In order to meet the requirements of different railway crane leg spans, the suspension loops 2 and the span beams 1 need to be designed to be in sliding connection. Specifically, the invention is also provided with a sliding support 8, wherein the hanging lug 2 is fixed on the sliding support 8, and the sliding support 8 is connected with the surface of the over-line beam 1 in a sliding manner.

As a sliding connection implementation mode of the sliding support 8 and the cross beam 1, the cross beam device further comprises two reverse hook lifting hooks 9, and the two reverse hook lifting hooks 9 are fixed on the sliding support 8 and hook the bottom surfaces of flange plates on two sides of the cross beam 1.

As a sliding connection implementation mode of the sliding support 8 and the over line beam 1, the over line beam device further comprises a sliding plate 11, wherein one surface of the sliding plate 11 is fixed with the sliding support 8, and the other surface of the sliding plate 11 is in sliding connection with the upper surface of the over line beam 1. Specifically, the MGE slide plate is adopted as the slide plate 11.

Preferably, the invention also comprises two guide wheels 10, wherein the two guide wheels 10 are respectively nested on the two reverse hook lifting hooks 9 and are in rolling connection with the side surfaces of the two flange plates of the span line beam 1. Therefore, the sliding guide requirement of the sliding support 8 can be met, and the requirement that the railway crane can lift and hang the whole set of support cushion device to jointly transfer through retraction of the supporting leg oil cylinder during transferring can also be met.

The cross beam 1 plays a role in supporting the support leg of the railway crane, and in order to adapt to the relative rotation of the support leg and the support leg, the cross beam further comprises an inner spherical base plate 12, the hanging lug 2 is arranged on the sliding support 8, the inner spherical base plate 12 is fixed on the sliding support 8, and an inner spherical groove is formed in the middle of the inner spherical base plate; the end part of the support leg of the railway crane is spherical, and the support leg is hinged with the suspension loop 2 and selectively and rotatably connected with the inner spherical base plate 12. Thus, the end part of the support leg of the railway crane can rotate in the inner spherical groove.

The following describes a method for using the variable-pitch span double-railway-line support pad device for the railway crane, comprising the following steps,

and S1, the support legs of the railway crane are hinged with the hangers 2. In the process, the sliding support 8 is adjusted to slide on the surface of the span beam 1 according to the requirements of different railway crane support leg spans, and the position of the suspension loop 2 is adjusted.

S2, the support legs of the railway crane are expanded and contracted, so that the two support positions 30 on the support seat 3 are initially aligned with the two steel rails 0 of the railway line. In the process, the double-line rail with different intervals can be adapted by rotating the supporting seat 3.

S3, the supporting seat 3 is driven to descend by the oil cylinder on the supporting leg of the railway crane, so that the two supporting positions 30 on the supporting seat 3 are abutted against the two steel rails 0 of the railway line. In the process, if the height of two steel rails 0 of the railway line is different, the supporting seat 3 is inclined, and the cross beam 1 is always vertically supported on the supporting seat 3 through the rotation of the radial spherical plain bearing 5. In the process, the end part of the support leg of the railway crane also rotates in the inner spherical surface groove for adaptive adjustment.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.