CN216514902U

CN216514902U - Polyurethane prefabricated sleeper lifting device

Info

Publication number: CN216514902U
Application number: CN202120707305.1U
Authority: CN
Inventors: 肖俊恒; 刘长溪; 张松琦; 张远庆; 张勇; 刘志; 张彬; 张欢; 李子睿; 李彦山
Original assignee: Beijing Tieke Shougang Rail Tech Co ltd
Current assignee: Beijing Tieke Shougang Rail Tech Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2022-05-13
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a polyurethane prefabricated sleeper lifting device, which comprises: the steel rail abdicating device comprises a base, wherein an abdicating groove which is communicated from front to back is formed below the base, a bent hook part used for hooking the upper edge of a steel rail is formed on one side of the abdicating groove, and a supporting part supported on the lower edge of the steel rail is formed on the other side of the abdicating groove; the position that is close to the supporting part on the base is provided with hydraulic cylinder, is connected with the flexible chain body on the hydraulic cylinder, and the lower extreme of the flexible chain body is connected with the spike, is formed with the passageway that provides the flexible chain body and pass on the base, and the strong point of supporting part is located between the flexible chain body and the crotch portion. The polyurethane prefabricated sleeper lifting device can lift a sleeper with low elevation so as to further connect a steel rail and the sleeper.

Description

Polyurethane prefabricated sleeper lifting device

Technical Field

The utility model relates to a polyurethane prefabricated sleeper lifting device.

Background

Because of the inconsistent sleeper support rail face elevation that road bed infrastructure and prefabricated polyurethane sleeper manufacturing tolerance lead to, the unsettled state in rail bottom appears, according to on-the-spot investigation about 100mm that can know, the unable normal installation of fastener, need promote the lower sleeper of elevation just can carry out the fastener installation.

The conventional method is that two jacks are used for supporting the middle part of a sleeper, but because the bottom surface of the sleeper is not smooth, the distance between the sleepers is small, no jack operation space exists and the like, the construction process is clumsy, the position accuracy of fastener installation is relatively poor, and the two sides of the sleeper cannot be supported because a polyurethane precast block is soft, the gap between the polyurethane precast block and the bottom surface is limited, and no jack is erected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a polyurethane prefabricated sleeper lifting device which can lift a sleeper with lower elevation so as to further connect a steel rail and the sleeper and overcome the defects of the prior art.

In order to accomplish the above objects, the present invention provides a polyurethane prefabricated sleeper lifting device, including: the steel rail abdicating device comprises a base, wherein an abdicating groove which is communicated from front to back is formed below the base, a hook part for hooking the upper edge of a steel rail is formed on one side of the abdicating groove, and a supporting part which is supported on the lower edge of the steel rail is formed on the other side of the abdicating groove; the base is provided with a hydraulic oil cylinder at a position close to the supporting part, the hydraulic oil cylinder is connected with a flexible chain body, the lower end of the flexible chain body is connected with a spike, a channel for the flexible chain body to pass through is formed on the base, and the supporting point of the supporting part is positioned between the flexible chain body and the hook part.

Preferably, the base comprises two buckle seats which are arranged in parallel, the two buckle seats are connected through a plurality of connecting pins, a gap is formed between the two buckle seats, and the flexible chain body penetrates through the gap and extends downwards.

Preferably, the clip seat includes: support handle, connecting handle and hook handle, support handle, connecting handle and hook handle connect in order and form the groove of stepping down.

Preferably, the support handle is arranged obliquely from top to bottom towards one side of the hook handle, and the upper end of the support handle is positioned outside the steel rail.

Preferably, the left side and the right side of the upper end of the support handle on the connecting handle are respectively provided with one connecting pin; the upper surfaces of the two connecting handles which are arranged in parallel are positioned at one sides facing each other to form arc-shaped grooves which are symmetrical to each other, and the hydraulic oil cylinder is fixedly arranged between the two arc-shaped grooves.

Preferably, each of the support handle and the hooking handle is provided with at least one connecting pin.

Preferably, the inner side of the support handle is formed with a unfilled corner matched with the lower edge of the steel rail.

Preferably, the shaft body of the hydraulic oil cylinder penetrates through the cylinder body of the hydraulic oil cylinder; a pore passage for the flexible chain body to pass through is arranged in the shaft body, a cylinder cover is arranged at the upper end of the shaft body, and the flexible chain body is connected to the inner side of the cylinder cover; the cylinder cover is sleeved at the upper end of the shaft body and can rotate by taking the central shaft of the shaft body as a rotating shaft.

According to the technical scheme, the polyurethane prefabricated sleeper lifting device is usually used in pairs and respectively acts on the steel rails on two sides, the hook portions are hooked on the upper edges of the outer sides of the steel rails, the supporting portions are supported on the lower edges of the inner sides of the steel rails, the hydraulic oil cylinders are used for acting on the flexible chain bodies, the spikes are screwed into the pre-buried track holes in the sleeper, and the two ends of the sleeper are lifted upwards through the lifting action of the two hydraulic oil cylinders, so that the following problems are solved: 1. construction from a narrow space is avoided, and the operation position is moved from the lower part of the sleeper to the upper part of the steel rail; 2. the automatic position of the sleeper is rectified, the sleeper is lifted by adopting flexible connection, the gravity center naturally drops to the mounting position after the sleeper is lifted, and the position precision of the sleeper after being lifted is improved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an overall block diagram of a preferred embodiment of a polyurethane precast sleeper lifting apparatus;

FIG. 2 is an overall block diagram of a preferred embodiment of the base;

FIG. 3 is a view showing a state of use of the base in cooperation with a rail;

FIG. 4 is an overall block diagram of a preferred embodiment of the flexible links and their connected components;

FIG. 5 is a view of the use of the polyurethane precast sleeper lifting mechanism;

fig. 6 is a side view of fig. 5.

Description of the reference numerals

a sleeper b rail

1 base and 2 hydraulic oil cylinders

3 flexible chain body 4 cylinder cover

5 spike 11 fastener seat

12 connecting pin 111 support handle

112 connecting handle 113 arc-shaped groove

114 hook handle 115 slot of giving way

116 unfilled corner

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, unless otherwise specified, directional words included in terms such as "upper, lower, left, right, front, rear, inner, and outer" and the like merely represent the directions of the terms in a normal use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.

Referring to fig. 1-6, a polyurethane precast sleeper lifting apparatus includes: the steel rail abdicating device comprises a base 1, wherein an abdicating groove 115 which is through from front to back is formed below the base 1, a bent hook part used for hooking the upper edge of a steel rail b is formed on one side of the abdicating groove 115, and a supporting part supported on the lower edge of the steel rail b is formed on the other side of the abdicating groove 115; a hydraulic oil cylinder 2 is arranged on the base 1 and close to the supporting part, a flexible chain body 3 is connected onto the hydraulic oil cylinder 2, a spike 5 is connected to the lower end of the flexible chain body 3, a channel for the flexible chain body 3 to pass through is formed on the base 1, and the supporting point of the supporting part is located between the flexible chain body 3 and the hook part.

Through above-mentioned technical scheme's implementation, this prefabricated sleeper hoisting device of polyurethane is generally for using in pairs, acts on respectively on the rail b of both sides, with the last edge of hook portion hook in the rail b outside, the supporting part supports at the lower edge of rail b inboard, uses hydraulic cylinder 2 to act on flexible chain body 3, in the pre-buried track hole on spike 5 spiral entering sleeper a, the lifting action through two hydraulic cylinder 2 upwards mentions sleeper a both ends to the following problem has been solved: 1. construction from a narrow space is avoided, and the operation position is moved from the lower part of the sleeper a to the upper part of the steel rail b; 2. the automatic position of the sleeper a is rectified, the sleeper a is lifted through flexible connection, the center of gravity naturally drops to the mounting position after the sleeper a is lifted, and the position accuracy of the sleeper a after being lifted is improved.

The specific use mode is as follows: 1. measuring adjacent fastener nodes, determining the position of the lifted sleeper a and marking; 2. placing the base 1 at a marked position; 3. placing a hydraulic oil cylinder 2; 4. installing a rail lower base plate of a fastener on the sleeper a; 5. the rail spike 5 penetrates through the lower rail backing plate and then is installed in the pre-buried track hole in the sleeper a; 6. pressurizing the hydraulic oil cylinder 2, lifting the sleeper a by using the hydraulic oil cylinder 2 until the rail lower base plate is closely attached to the steel rail b, and synchronously lifting the hydraulic oil cylinders 2 on the two sides; 7. installing fasteners at the outer sides of the two steel rails b according to a normal fastener assembling method; 8. removing the lifting device; 9. and installing the fasteners at the inner sides of the two steel rails b according to a normal fastener assembling method.

In this embodiment, in order to further provide a structure of the base 1 so as to form a passage for providing the flexible chain body 3 to pass through, preferably, the base 1 includes two snap seats 11 arranged side by side, the two snap seats 11 are connected by a plurality of connecting pins 12, a space is formed between the two snap seats 11, and the flexible chain body 3 extends downward through the space.

In this embodiment, in order to further provide a structure of the buckle holder 11 so as to form the bent portion and the supporting portion, preferably, the buckle holder 11 includes: a support handle 111, a connection handle 112 and a hook handle 114, wherein the support handle 111, the connection handle 112 and the hook handle 114 are connected in sequence to form the abdicating groove 115. The width of the abdicating groove 115 is such that the shank 114 can hook to the upper edge of the rail b and the upper portion of the rail b can be inserted into the abdicating groove 115.

In this embodiment, in order to obtain a better force supporting effect of the support shank 111, the upper end of the support shank 111 has a downward swinging force after the sleeper a is lifted, the swinging force pulls the hook shank 114 to press on the steel rail b, preferably, the support shank 111 is inclined toward one side of the hook shank 114 from top to bottom, and the upper end of the support shank 111 is located outside the steel rail b.

In this embodiment, in order to further provide a structure for conveniently placing the hydraulic cylinder 2, it is preferable that one of the connecting pins 12 is provided on each of the left and right sides of the connecting shank 112 at the upper end of the support shank 111; the upper surfaces of the two connecting handles 112 arranged in parallel are positioned at the sides facing each other to form arc-shaped grooves 113 which are symmetrical to each other, and the hydraulic oil cylinder 2 is fixedly arranged between the two arc-shaped grooves 113. The hydraulic oil cylinder 2 can be directly placed between the two arc-shaped grooves 113 in an inserted mode and clamped tightly, internal threads can also be arranged on the side wall of the arc-shaped groove 113, external threads matched with the internal threads are arranged on the outer side of the hydraulic oil cylinder 2, and the hydraulic oil cylinder 2 and the internal threads are in threaded connection.

In this embodiment, in order to further improve the connection stability between the two snap sockets 11 at the positions of the support handle 111 and the hook handle 114, it is preferable that each of the support handle 111 and the hook handle 114 is provided with at least one connection pin 12.

In this embodiment, in order to further improve the support stability of the support handle 111, it is preferable that the support handle 111 is formed with a notch 116 on the inner side thereof to fit the lower edge of the rail b.

In this embodiment, in order to further provide a connection manner between the flexible chain body 3 and the hydraulic cylinder 2, preferably, the shaft body of the hydraulic cylinder 2 is disposed through the cylinder body thereof; a pore passage for the flexible chain body 3 to pass through is arranged in the shaft body, a cylinder cover 4 is arranged at the upper end of the shaft body, and the flexible chain body 3 is connected to the inner side of the cylinder cover 4; the cylinder cover 4 is sleeved on the upper end of the shaft body and can rotate by taking the central shaft of the shaft body as a rotating shaft. The flexible chain body 3 can use the iron chain, and upper end and lower extreme are connected with spike 5 and cylinder cap 4 through round pin axle, and hydraulic cylinder 2 adopts the biax pneumatic cylinder, and the cylinder body all stretches out at the both ends of axle, and in order that the flexible chain body 3 can not twine in rotatory spike 5, set up to relatively pivoted between cylinder cap 4 and the axis body, if set up the annular rib in the outside of axis body, set up in the inboard of cylinder cap 4 with the annular rib assorted ring channel.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A prefabricated polyurethane sleeper lifting device, characterized in that, prefabricated polyurethane sleeper lifting device includes: the steel rail abdicating device comprises a base (1), wherein an abdicating groove (115) which is through from front to back is formed below the base (1), a bent hook part used for hooking the upper edge of a steel rail (b) is formed on one side of the abdicating groove (115), and a supporting part supported on the lower edge of the steel rail (b) is formed on the other side of the abdicating groove (115);

a hydraulic oil cylinder (2) is arranged on the base (1) and close to the supporting part, a flexible chain body (3) is connected onto the hydraulic oil cylinder (2), a spike (5) is connected to the lower end of the flexible chain body (3), a channel for the flexible chain body (3) to pass through is formed on the base (1), and a supporting point of the supporting part is located between the flexible chain body (3) and the hook part.

2. Prefabricated polyurethane sleeper lifting arrangement according to claim 1, characterized in that the base (1) comprises two snap sockets (11) arranged side by side, the two snap sockets (11) being connected by a plurality of connecting pins (12) and a space being formed between the two snap sockets (11), through which space the flexible chain body (3) extends downwards.

3. Prefabricated polyurethane sleeper lifting device according to claim 2, characterized in that the snap seat (11) comprises: support handle (111), connecting handle (112) and hook handle (114), support handle (111), connecting handle (112) and hook handle (114) connect in order to form in proper order abdicating groove (115).

4. Prefabricated polyurethane sleeper lifting arrangement according to claim 3, characterized in that the support shank (111) is arranged inclined from top to bottom towards the side of the shank (114) and the upper end of the support shank (111) is located outside the rail (b).

5. The precast polyurethane sleeper elevating device as claimed in claim 4, wherein one of the connection pins (12) is provided on both left and right sides of the connection shank (112) at the upper end of the support shank (111), respectively;

the upper surfaces of the two connecting handles (112) which are arranged in parallel are positioned at one sides facing each other to form arc-shaped grooves (113) which are symmetrical to each other, and the hydraulic oil cylinder (2) is fixedly arranged between the two arc-shaped grooves (113).

6. Prefabricated polyurethane sleeper lifting arrangement according to claim 5, characterized in that at least one of the connecting pins (12) is provided on each of the support shank (111) and the hooking shank (114).

7. Prefabricated polyurethane sleeper lifting arrangement according to claim 6, characterized in that the inner side of the support shank (111) is formed with a cut-out (116) adapted to the lower edge of the rail (b).

8. Prefabricated polyurethane sleeper lifting arrangement according to any one of claims 1-7, characterized in that the shaft body of the hydraulic ram (2) is arranged through its cylinder body;

a pore passage for the flexible chain body (3) to pass through is arranged in the shaft body, a cylinder cover (4) is arranged at the upper end of the shaft body, and the flexible chain body (3) is connected to the inner side of the cylinder cover (4);

the cylinder cover (4) is sleeved at the upper end of the shaft body and can rotate by taking the central shaft of the shaft body as a rotating shaft.