阅读说明：本技术 一种走台板限位结构及履带起重机 (Walking board limiting structure and crawler crane ) 是由 徐李 刘敏 李伟涛 李云青 顾传彬 于 2021-07-16 设计创作，主要内容包括：本发明公开了一种走台板限位结构及履带起重机,包括用于与操纵室固接的固定座和用于与走台板立筋连接的支座,所述支座与固定座固接,所述支座上设有挡板,所述挡板上设有用以与走台板立筋连接的调节机构。本发明通过在支座上设置挡板和调节顶丝,使得走台板立筋能够在调节顶丝与调平螺栓共同作用下,保持相对静止,从而避免走台板随主机运输上下摆动,撞击操纵室。(The invention discloses a walking board limiting structure and a crawler crane, which comprise a fixed seat fixedly connected with a control room and a support connected with a walking board stud, wherein the support is fixedly connected with the fixed seat, the support is provided with a baffle, and the baffle is provided with an adjusting mechanism connected with the walking board stud. According to the invention, the baffle and the adjusting jackscrew are arranged on the support, so that the walking board vertical rib can keep relatively static under the combined action of the adjusting jackscrew and the leveling bolt, and the walking board is prevented from swinging up and down along with the transportation of the host machine and impacting the control room.)

1. The utility model provides a walk platen limit structure, its characterized in that, including be used for with the fixing base of control room rigid coupling and be used for with walk the support that the platen found the muscle to be connected, support and fixing base rigid coupling, be equipped with the baffle on the support, be equipped with on the baffle and be used for with walk the adjustment mechanism that the platen found the muscle to be connected.

2. The walking board limiting structure of claim 1, wherein the support comprises two oppositely arranged ear plates, and the baffle is arranged on the two ear plates.

3. The walking board limiting structure according to claim 1, wherein the two ear plates are provided with first through holes which are oppositely arranged, and the support passes through the first through holes through a pin shaft to be connected with the walking board studs.

4. The limit structure of the walking board of claim 1, wherein the baffle is provided with a second through hole, and the adjusting mechanism passes through the second through hole to be connected with the top end of the stud of the walking board.

5. The walking board limiting structure of claim 4, wherein the adjusting mechanism is an adjusting jackscrew, and the adjusting jackscrew penetrates through the second through hole to be in threaded connection with the walking board stud.

6. The structure as claimed in claim 4, wherein the second through holes are provided in plural numbers, and the plural second through holes are uniformly provided on the baffle.

7. The walking board limiting structure of claim 1, wherein the baffle is fixedly connected with the fixed seat.

8. A crawler crane, comprising the step plate limiting structure as claimed in claims 1 to 7.

Technical Field

The invention relates to a walking board limiting structure and a crawler crane, and belongs to the technical field of construction machinery.

Background

On the crawler crane product, control room one side sets up the deck of walking that provides the driver and come in and go out, when walking the deck and transporting along with the host computer, should walk the deck and transport along with the host computer, because reasons such as road surface unevenness or jolt, frequently bump takes place for walking the deck and the side wall board contact part of control room, leads to the side bounding wall to be bumped and produces local sunken, influences the deck and uses normally.

In the prior art, in order to solve the problems, a leveling bolt is arranged between a walking board and an operating room, a side coaming of the operating room is provided with a pin shaft to connect an ear plate with a walking board stud, a nut block is welded on the walking board stud, and the leveling degree of the walking board is adjusted by adjusting the length of the leveling bolt. However, when the walking board is transported along with the host, due to uneven road surface or jolt and other reasons, the walking board can swing up and down along the radial direction of the pin shaft, and in the swinging process, the leveling bolts installed on the stud nut blocks of the walking board can frequently impact the side coaming along with the swinging of the walking board, so that the side coaming is locally sunken or pits appear, the normal use of the walking board is influenced, and the integral attractiveness is influenced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a walking board limiting structure and a crawler crane.

In order to solve the technical problems, the invention is realized by adopting the following technical scheme:

on one hand, the invention provides a limit structure of a walking board, which comprises a fixed seat fixedly connected with a control room and a support seat connected with a vertical rib of the walking board, wherein the support seat is fixedly connected with the fixed seat, a baffle plate is arranged on the support seat, and an adjusting mechanism connected with the vertical rib of the walking board is arranged on the baffle plate.

In a preferred embodiment, the support comprises two oppositely arranged ear plates, and the baffle is arranged on the two ear plates.

In a preferred embodiment, the two ear plates are provided with first through holes which are oppositely arranged, and the support passes through the first through holes through a pin shaft to be connected with the walking board stud.

In a preferred embodiment, the baffle plate is provided with a second through hole, and the adjusting mechanism passes through the second through hole and is connected with the top end of the walking board stud.

In a preferred embodiment, the adjusting mechanism is an adjusting jackscrew, and the adjusting jackscrew penetrates through the second through hole to be in threaded connection with the walking board stud.

In a preferred embodiment, the second through holes are provided in plurality, and the second through holes are uniformly provided in the baffle plate.

In a preferred embodiment, the baffle is fixedly connected with the fixed seat.

On the other hand, the invention also provides a crawler crane which comprises the walking board limiting structure.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a limit structure of a walking board, which comprises a fixed seat fixedly connected with a control room and a support connected with a walking board stud, wherein the support is fixedly connected with the fixed seat, a baffle is arranged on the support, and an adjusting jackscrew connected with the walking board stud is arranged on the baffle. The walking board can be ensured to be in a horizontal state by arranging the leveling bolt, the walking board stud can keep relatively static under the combined action of the adjusting stud and the leveling bolt by arranging the baffle and the adjusting stud on the support, the walking board is prevented from swinging up and down along with the transportation of a host machine and impacting a control room, and the service life of the walking board is prolonged.

2. The invention provides a crawler crane, which comprises a walking board limiting structure, a control chamber and a walking board, wherein the walking board limiting structure is arranged between the control chamber and the walking board, and the walking board limiting structure is arranged on the crawler crane, so that the problem that a side wall board is locally sunken or pits are formed due to frequent impact of a leveling bolt on the side wall board along with the swinging of the walking board can be solved, and the walking board is prevented from swinging up and down along with the transportation of the crawler crane and frequently impacting the control chamber.

Drawings

Fig. 1 is a structural schematic diagram of a position relationship between a limit structure of a walking board and a control room provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a limiting structure of a walking board according to an embodiment of the present invention;

fig. 3 is a schematic view of another angle structure of a limiting structure of a walking board according to an embodiment of the present invention;

fig. 4 is a schematic view of another angle structure of a limiting structure of a walking board according to an embodiment of the present invention;

in the figure: 1. a control room; 11. a walking board; 12. erecting ribs on the walking board; 2. a limiting structure; 3. a fixed seat; 4. a support; 41. an ear plate; 42. a baffle plate; 43. a first through hole; 5. leveling bolts; 6. adjusting a jackscrew; 7. a second through hole; 8. a pin shaft; 9. a nut block.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example one

The invention provides a limit structure 2 of a walking board 11, which comprises a fixed seat 3 and a support 4, please refer to fig. 2-4, wherein the support 4 is fixedly connected with the fixed seat 3, the fixed seat 3 is fixedly connected with an operating room 1, and preferably, the fixed seat 3 is fixedly connected with the operating room 1 through a screw. Other ways of fixedly connecting the fixed seat 3 with the control cabin 1 can be adopted by those skilled in the art, and the invention is not limited herein.

As will be known to those skilled in the art, a walking board stud 12 is fixedly connected to the bottom of the walking board 11, and the walking board stud 12 is used for supporting the walking board 11.

In this embodiment, the support 4 is used for being connected with the deck plate stud 12, and specifically, a baffle 42 is provided on the support 4, in this embodiment, the baffle 42 includes two ear plates 41 disposed oppositely, and the baffle 42 is provided on the two ear plates 41. Those skilled in the art can design the ear plate 41 in other numbers, or change the arrangement position of the ear plate 41, and the invention is not limited herein.

In order to fix the baffle 42 better, the baffle 42 is fixedly connected with the fixing seat 3, so that the baffle 42 is fixed with the support 4 and the fixing seat 3 more stably, it should be noted that the support 4 can also be made into a whole to increase the strength of the whole structure, that is, the ear plate 41 and the baffle 42 are designed into an integrally formed structure.

The two ear plates 41 are provided with first through holes 43 which are oppositely arranged, a pin shaft 8 is arranged in the first through hole 43, and the support 4 penetrates through the first through hole 43 through the pin shaft 8 and is connected with the walking board stud 12. It should be noted that, a person skilled in the art may adjust the shape and size of the first through hole 43 according to actual requirements, in this case, the shape and size of the pin 8 may also be adjusted to make the pin 8 fit with the first through hole 43.

As known by persons skilled in the art, in order to prevent the walking board 11 from swinging to impact the control room 1 during transportation along with the host machine, the side wall plates of the control room 1 are connected with the ear plates 41 and the walking board studs 12 by the pin shafts 8, the walking board studs 12 are welded with the nut blocks 9, and the horizontal degree of the walking board 11 is adjusted by adjusting the length of the leveling bolts 5. The leveling bolt 5 is mounted on the nut block 9, that is, the walking board 11 can be kept in a horizontal state by adjusting the telescopic length of the leveling bolt 5.

When the platform plate 11 approaches the cage 1, the leveling bolts 5 can be adjusted to increase the distance between the platform plate 11 and the cage 1. In detail, when the distance between the platform board stud 12 and the control room 1 is short, the leveling bolt 5 can be adjusted to increase the distance between the platform board stud 12 and the control room 1, so as to ensure that the platform board 11 is in a horizontal state. The person skilled in the art can control the distance between the walking board stud 12 and the control cabin 1 by adjusting the leveling bolt 5, thereby ensuring that the walking board 11 is in a horizontal state.

In order to prevent the side coamings of the control cabin 1 from being depressed and damaged due to the fact that the walking board 11 continuously impacts the side coamings in the swinging process, the baffle plate 42 is further provided with an adjusting mechanism which is used for being connected with the walking board stud 12. Specifically, a second through hole 7 is formed in the baffle 42, and the adjusting mechanism penetrates through the second through hole 7 to be connected with the top end of the walking board stud 12.

Preferably, the adjusting mechanism is an adjusting jackscrew 6, the second through hole 7 is a threaded hole, and the adjusting jackscrew 6 penetrates through the second through hole 7 to be in threaded connection with the walking board stud 12. Through adjusting the jackscrew 6 from top to bottom, adjust leveling bolt 5 from left to right, can restrict the relative motion of walking platen stud 12, avoid walking the luffing motion of platen 11 in the transportation to solve leveling bolt 5 along with walking the frequent striking side coaming of platen 11 swing, lead to the local sunken or the problem that the pit appears of sideboard.

As a preferred embodiment, a plurality of second through holes 7 are provided, and a plurality of second through holes 7 are uniformly provided on the baffle plate 42, so that a person skilled in the art can install the adjusting jackscrews 6 in the appropriate second through holes 7 according to the field requirement, and it should be understood that a person skilled in the art can install a plurality of adjusting jackscrews 6 at the same time in order to better prevent the walking board 11 from swinging up and down during transportation, as long as the problem that the walking board 11 does not swing up and down during transportation can be ensured.

When the walking board 11 is used normally, the adjusting jackscrew 6 is screwed down and then rotates reversely for a circle, and then the leveling bolt 5 is adjusted to ensure that the walking board 11 is in a horizontal state; when the walking board 11 is transported along with the host, the adjusting jackscrew 6 on the baffle 42 is screwed down, and at the moment, the walking board stud 12 keeps relatively static under the combined action of the adjusting jackscrew 6 and the leveling bolt 5, so that the walking board 11 can be prevented from swinging up and down along with the host transportation, and the service life of the walking board 11 is prolonged.

Example two

The invention also provides a crawler crane, which adopts the limit structure 2 of the walking platform plate 11 in the first embodiment.

Referring to fig. 1, the crawler crane comprises a walking board 11 limiting structure 2, a control room 1 and a walking board 11, wherein the walking board 11 limiting structure 2 is arranged between the control room 1 and the walking board 11, and the problem that the side coaming is locally sunken or pits are formed due to the fact that a leveling bolt 5 frequently impacts the side coaming along with the swinging of the walking board 11 can be solved by arranging the walking board 11 limiting structure 2 on the crawler crane. When the walking board 11 is used normally, the adjusting jackscrew 6 is screwed down and then rotates reversely for a circle, and then the leveling bolt 5 is adjusted to ensure that the walking board 11 is in a horizontal state; when the walking board 11 is transported along with the host machine, the adjusting jackscrew 6 on the baffle 42 is screwed, at the moment, the walking board stud 12 keeps relatively static under the combined action of the adjusting jackscrew 6 and the leveling bolt 5, and the walking board 11 is prevented from swinging up and down along with the transportation of the crawler crane and frequently impacting the control room 1, so that the service life of the walking board 11 is prolonged.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.