CN216690987U

CN216690987U - Mast assembly and construction machinery

Info

Publication number: CN216690987U
Application number: CN202220005479.8U
Authority: CN
Inventors: 王镇
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-06-07
Anticipated expiration: 2032-01-04

Abstract

The utility model provides a mast assembly and construction machinery, and relates to the technical field of engineering machinery. The mast assembly comprises a mast body and a slide rail; the slide rail is fixedly arranged on the mast body along the length direction of the mast body; the slide rail has the glide plane, and the both sides of glide plane all are equipped with sliding installation portion, and sliding installation portion's at least one end is equipped with the guide part, and the guide part narrows down the setting to the direction of keeping away from sliding installation portion by sliding installation portion's tip. The utility model mainly solves the problem that the assembly of a sliding part is inconvenient because the chamfers at the upper end and the lower end of a sliding rail on a mast are too small in the prior art. The guide part of the utility model provides guidance for the installation of the sliding part on the mast, provides great convenience for the disassembly and the assembly of the sliding part, and obviously shortens the assembly time of the sliding part. The utility model has the characteristics of simple structure, convenient operation and low cost.

Description

Mast assembly and construction machinery

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a mast assembly and construction machinery.

Background

The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering, and the main working environment is a soil layer and a rock layer. The mast is an important part of the mast of the rotary drilling rig, a follow-up frame and a power head can be arranged on the mast, and the mast can slide up and down through a slide rail, as shown in figure 1. However, the chamfers of the upper end face and the lower end face of the sliding rail of the mast are too small, as shown in fig. 2, so that the follow-up frame and the power head are difficult to disassemble and assemble in the actual working process, and other hoisting equipment is needed to assist in operation. Not only wastes time and energy and increases cost, but also has potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defect that the disassembly and assembly of the follow-up frame and the power head are difficult due to the fact that chamfers of the upper end face and the lower end face of the mast slide rail are too small in the prior art, so that the mast assembly and the construction machine are provided.

In order to solve the above problems, an aspect of the present invention provides a mast assembly, including a mast body and a slide rail; the slide rail is fixedly arranged on the mast body along the length direction of the mast body; the slide rail has the glide plane, and the both sides of glide plane all are equipped with sliding installation portion, and sliding installation portion's at least one end is equipped with the guide part, and the guide part is narrowed the setting to the direction of keeping away from sliding installation portion by sliding installation portion's tip.

Optionally, the guide part is a guide protrusion, the guide protrusion is provided with a connecting end and a guide end, the connecting end is connected with the sliding installation part, and the guide protrusion is gradually narrowed from the connecting end to the guide end.

Optionally, the guide protrusion is a guide block, the guide block has a first surface close to the sliding surface, a second surface far away from the sliding surface, and a third surface close to the side wall of the sliding rail and connected to the first surface and the second surface, and at least two surfaces in the first surface, the second surface and the third surface are guide slope surfaces which are obliquely arranged from the connecting end to the guide end.

Optionally, the first face and the second face of guide block are the slope surface of direction of slope setting, and the contained angle between first face and/or second face and the vertical plane is 10 ~ 30.

Optionally, the connecting end of the guide projection is welded to the end of the sliding mounting portion.

Optionally, the protruding link of direction is equipped with the connecting plate, has all seted up the mounting hole on slidable mounting portion's terminal surface and the connecting plate, and connecting plate and slidable mounting portion pass through the bolt and can dismantle the connection.

Optionally, a reinforcing rib plate is connected between the guide protrusion and the connecting plate.

Optionally, the mast body is provided with a flange plate arranged in a direction perpendicular to the mast body, one end of the slide rail is mounted on the flange plate, and the guide portion is connected with the flange plate.

Another aspect of the present invention provides a construction machine including a mast assembly according to any one of the above aspects.

Optionally, the construction machinery is a rotary drilling rig; the rotary drilling rig comprises a follow-up frame and a power head; the hand grip component of the follow-up frame is slidably sleeved on the sliding installation part, and the hand grip component of the power head is slidably sleeved on the sliding installation part.

The utility model has the following advantages:

1. by utilizing the technical scheme provided by the utility model, the guide part is narrowed from the end part of the sliding installation part to the direction far away from the sliding installation part, the defect that chamfers of the upper end surface and the lower end surface of the mast sliding rail are too small in the prior art is overcome, the guide part provides guidance for the installation of the sliding part on the mast, great convenience is provided for the disassembly and the assembly of the sliding part, and the assembly time of the sliding part is obviously shortened. The utility model has the characteristics of simple structure, convenient operation and low cost.

2. The guide projection is added at least one end of the sliding installation part, so that the guide of the assembly of the sliding part can be realized by a simpler structure, and the investment of cost can be reduced.

3. The included angle between the first surface and/or the second surface of guide block and the vertical plane is 10 ~ 30, and the direction slope face in this angular range can play better guide effect.

4 the connecting plate provides two kinds of nimble mounting means for the installation of guide block, and the guide block can be welded or install at the both ends of slide rail through bolt detachable for the mounting means of guide block can be selected according to actual need.

5. The guide part is connected with the flange plate, so that the welding structure of the slide rail and the flange is not damaged, and the connection strength of the mast and the lower end of the slide rail is ensured.

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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram illustrating a use scenario of a mast assembly provided by the present invention;

FIG. 2 is a schematic view showing a structure of a conventional guide apparatus;

FIG. 3 is a schematic structural view of one embodiment of a mast assembly provided by the present invention;

fig. 4 shows a partial enlarged view at B in fig. 3;

FIG. 5 is a schematic structural view of another embodiment of a mast assembly provided by the present invention;

FIG. 6 shows the installation schematic of FIG. 5;

fig. 7 shows a schematic view of the structure of the gripper assembly of the follower cage.

Description of the reference numerals:

1. a mast body; 2. a slide rail; 21. a sliding surface; 211. a sliding mounting portion; 212. a guide portion; 2121. a connecting end; 2122. a leading end; 2123. a first side; 2124. a second face; 2125. a third side; 3. a first connecting plate; 4. a second connecting plate; 5. mounting holes; 6. a bolt; 7. reinforcing rib plates; 8. a follow-up frame; 9. a power head; 10. a flange plate; 11. a gripper assembly; 111. a slide plate; α: an included angle between the first surface and the vertical plane; beta: the included angle between the second surface and the vertical plane.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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 and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The utility model mainly solves the problem that the assembly of a sliding part is inconvenient because the chamfers at the upper end and the lower end of a sliding rail 2 on a mast are too small in the prior art. The utility model mainly realizes the guidance of the disassembly and assembly of the sliding part by respectively arranging the gradually narrowed guiding parts 212 at the upper end and the lower end of the sliding rail 2. The specific technical scheme is as follows:

example 1

A mast assembly comprises a mast body 1 and a slide rail 2. The slide rail 2 is fixedly arranged on the mast body 1 along the length direction of the mast body 1. The slide rail 2 has a slide surface 21, and slide attachment portions 211 are provided on both sides of the slide surface 21. At least one end of the sliding mounting part 211 is provided with a guide part 212, and the guide part 212 is narrowed from the end of the sliding mounting part 211 to a direction away from the sliding mounting part 211.

For convenience of describing the technical scheme of the utility model, the mast assembly of the rotary drilling rig is taken as an example in the embodiment, but it should not be understood that the mast assembly provided by the utility model can only be used on the rotary drilling rig.

The rotary drilling rig comprises a follow-up frame 8 and a power head 9; referring to fig. 7, the follower frame 8 and the power head 9 are provided with grip assemblies 11 on both sides. In the prior art, referring to fig. 1, as seen from the orientation of fig. 1, the grip assembly 11 of the follower frame 8 is slidably sleeved on the slide rail 2 from the upper end of the slide rail 2 downward, and the grip assembly 11 of the power head 9 is slidably sleeved on the slide rail 2 from the lower end of the slide rail 2 upward. Specifically, the two sides of the follow-up frame 8 and the power head 9 are slidably sleeved on the sliding installation part 211 of the slide rail 2 through the gripper assembly 11. The point a in fig. 2 is the upper end and the lower end of the sliding mounting part 211 of the sliding rail 2 in the prior art, and as is apparent from the figure, the chamfers of the two parts are very small, and the upper end surface and the lower end surface of the sliding mounting part 211 are both flat, which is inconvenient for assembling the follow-up frame 8 and the power head 9.

In this embodiment, the guide portions 212 are provided at both ends of the slide mounting portion 211, and referring to fig. 3, the guide portions 212 are narrowed from the end of the slide mounting portion 211 in a direction away from the slide mounting portion 211.

The guide part 212 is narrowed from the end part of the sliding installation part 211 to the direction far away from the sliding installation part 211, the defect that chamfers of the upper end surface and the lower end surface of the mast sliding rail 2 in the prior art are too small is overcome, the guide part 212 provides a guide for installation of a sliding part on the mast, great convenience is provided for dismounting of the sliding part, and the assembly time of the sliding part is obviously shortened. The utility model has the characteristics of simple structure, convenient operation and low cost.

Further, the guide portion 212 is a guide protrusion having a connection end 2121 and a leading end 2122, the connection end 2121 is connected to the sliding mounting portion 211, and the guide protrusion is gradually narrowed from the connection end 2121 to the leading end 2122.

Specifically, in this embodiment, the guide protrusion is a guide block, and referring to fig. 6, fig. 6 only shows the structure of the lower end portion of the slide rail 2, as is apparent from the figure, two sliding guide portions 212 arranged in parallel are disposed on the sliding surface 21 of the slide rail 2, and the two sliding guide portions 212 are symmetrically distributed near two side edges of the slide rail 2. The upper and lower ends of each slide guide portion 212 are provided with guide projections, that is, the upper and lower ends of the slide surface 21 are provided with 4 guide projections in total. Referring to fig. 5, the guide block has a first surface 2123 close to the sliding surface 21, a second surface 2124 far from the sliding surface 21, and a third surface 2125 close to the side wall of the slide rail 2 and connecting the first surface 2123 and the second surface 2124, and at least two surfaces of the first surface 2123, the second surface 2124, and the third surface 2125 are guide slope surfaces inclined from the connecting end 2121 to the leading end 2122. In the orientation of fig. 6, if the sliding surface 21 is the front side surface, the front side surface of the guide block is the first surface 2123, the rear side surface of the guide block is the second surface 2124, and the right side surface of the guide block is the third surface 2125, which are engaged with the follower frame 8 slidably fitted on the slide rail 2 and the gripper assembly 11 of the power head 9. Specifically, referring to fig. 7, the follower frame 8 and the gripper assembly 11 on both sides of the power head 9 are respectively provided with three sliding plates 111, three surfaces of the three sliding plates 111 are respectively matched with the first surface 2123, the second surface 2124 and the third surface 2125 of the guide block, when at least any two of the three surfaces are guide slopes, the guide block can be configured such that the upper dimension of the guide block is smaller than the lower dimension, that is, the dimension of the guide end 2122 is smaller than the dimension of the connection end 2121, and the guide function can be performed on the assembly of the gripper assembly 11.

Specifically, in this embodiment, the first surface 2123 and the second surface 2124 of the guide block are inclined guide slopes, that is, the two opposite sides of the guide block are guide slopes. Referring to fig. 4, a further preferable technical solution is that an included angle between the first face 2123 and/or the second face 2124 and a vertical plane is 10 to 30 °. That is, the angle between the first face 2123 of the guide block and the vertical plane is α; the angle between the second face 2124 and the vertical plane is β, α is [10 °,30 ° ] and β is [10 °,30 ° ]. It is also possible that the sum of the angles α and β is not more than 60 °. The guiding effect of the guiding slope with the inclination angle within the range is optimal. If the angle of alpha and/or beta is too large, the guiding effect is poor; if the angle of alpha and/or beta is too small, the guide slope is long, the guide stroke of the guide block is long, and the installation is not facilitated.

In the present embodiment, two mounting methods of the guide projection are provided, in which one of the mounting methods is that the connecting end 2121 of the guide projection is welded to the end of the sliding mounting portion 211. As shown in fig. 3 and 4, that is, the guide blocks are directly welded to both ends of the slide guide portion 212. Second, the guide projection is detachably mounted on the end of the slide guide 212 by a bolt 6. Specifically, referring to fig. 5 and 6, the connecting end 2121 of the guide projection is provided with a connecting plate, the end face of the sliding mounting portion 211 and the connecting plate are both provided with mounting holes 5, and the connecting plate and the sliding mounting portion 211 are detachably connected through bolts 6. Of course, in order not to destroy the strength of the sliding rail itself, two connecting plates, respectively the first connecting plate 3 and the second connecting plate 4, may be provided. Specifically, protruding link 2121 of direction is equipped with first connecting plate 3, and the tip welding of slidable mounting portion 211 has second connecting plate 4, has all seted up mounting hole 5 on first connecting plate 3 and the second connecting plate 4, and first connecting plate 3 and second connecting plate 4 pass through bolt 6 and can dismantle the connection.

Further, in order to improve the connection strength between the guide block and the first connection plate 3, a reinforcing rib plate 7 is connected between the side surface of the guide block and the first connection plate 3.

Similarly, in order to ensure the connection strength between the mast body 1 and the lower end of the slide rail 2, the mast body 1 is connected to a flange plate 10 which is arranged in a direction perpendicular to the mast body 1, one end of the slide rail 2 is mounted on the flange plate 10, and the guide portion 212 is connected to the flange plate 10. Referring to fig. 6, that is, the flange plate 10 extends to the sliding surface 21 of the slide rail 2, the second connecting plate 4 is welded to the flange plate 10, and the guide block is detachably connected to the first connecting plate 3 and the second connecting plate 4 by the bolts 6. The two installation modes of the guide protrusions are convenient to select according to actual application requirements, the two installation modes of the guide protrusions are simple and low in cost, and are the preferable two installation modes, of course, the installation modes of the guide protrusions are not limited to the two installation modes, and for example, in order to ensure the integral rigidity of the slide rail 2 and the mast body 1, the guide protrusions can be integrally formed with the slide rail 2.

Example 2

A construction machine comprising a mast assembly as described in embodiment 1. The construction machine with the mast assembly also has the advantages of convenience in assembly of the sliding part, assembly time saving, simple structure and low cost investment.

Further, the construction machinery is a rotary drilling rig; the mast assembly of the rotary drilling rig is described in detail in embodiment 1, and is not described herein again.

According to the above description, the present patent application has the following advantages:

1. the guide part 212 has good guiding function for the assembly of the sliding part, and has simple structure, convenient operation and little cost increase.

2. The mast assembly is wide in application range and flexible and convenient to operate due to the two installation modes of the guide protrusions.

3. The guide protrusion, the slide rail 2 and the mast body 1 are connected through the flange plate 10, the flange plate 10 extends to the sliding surface 21 of the slide rail 2, and the connection strength between the mast and the slide rail 2 can be ensured.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A mast assembly comprising a mast body (1) and a slide rail (2), characterized in that,

the sliding rail (2) is fixedly arranged on the mast body (1) along the length direction of the mast body (1); slide rail (2) have glide plane (21), the both sides of glide plane (21) all are equipped with slidable mounting portion (211), at least one end of slidable mounting portion (211) is equipped with guide part (212), guide part (212) by the tip of slidable mounting portion (211) is to keeping away from the direction narrowing setting of slidable mounting portion (211).

2. A mast assembly according to claim 1, wherein the guide portion (212) is a guide projection having a connecting end (2121) and a leading end (2122), the connecting end (2121) being connected to the slide mounting (211), the guide projection tapering from the connecting end (2121) to the leading end (2122).

3. A mast assembly according to claim 2, wherein the guide projection is a guide block having a first face (2123) adjacent the sliding face (21), a second face (2124) remote from the sliding face (21), and a third face (2125) adjacent a side wall of the slide rail (2) and connecting the first face (2123) and the second face (2124), at least two of the first face (2123), the second face (2124), and the third face (2125) being guide ramps inclined from the connecting end (2121) to the leading end (2122).

4. A mast assembly according to claim 3, wherein the guide block first (2123) and second (2124) faces are obliquely arranged guide ramps, the first (2123) and/or second (2124) face being angled at 10-30 ° to a vertical plane.

5. A mast assembly according to claim 2, wherein the connecting end (2121) of the guide projection is welded to an end of the slide mounting portion (211).

6. A mast assembly according to any one of claims 2 to 5, wherein the connecting end (2121) of the guide projection is provided with a connecting plate, the end surface of the slide mounting portion (211) and the connecting plate are provided with mounting holes (5), and the connecting plate is detachably connected with the slide mounting portion (211) through bolts (6).

7. A mast assembly according to claim 6, wherein a stiffener plate (7) is connected between the guide projection and the connection plate.

8. A mast assembly according to claim 1, wherein the mast body (1) is provided with a flange plate (10) arranged in a direction perpendicular to the mast body (1), one end of the slide rail (2) is mounted on the flange plate (10), and the guide portion (212) is connected to the flange plate (10).

9. A construction machine comprising a mast assembly according to any one of claims 1-8.

10. The construction machine according to claim 9, wherein the construction machine is a rotary drilling rig; the rotary drilling rig comprises a follow-up frame (8) and a power head (9); and the hand grip component (11) of the follow-up frame (8) is slidably sleeved on the sliding installation part (211), and the hand grip component (11) of the power head (9) is slidably sleeved on the sliding installation part (211).