CN216429519U

CN216429519U - Power head key sleeve, power head and operating machine

Info

Publication number: CN216429519U
Application number: CN202122464832.7U
Authority: CN
Inventors: 蒋恩伟
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-05-03
Anticipated expiration: 2031-10-13

Abstract

The utility model relates to a rotary drilling rig technical field provides a unit head key sleeve, unit head and operation machinery, and the unit head key sleeve includes the key sleeve body, key strip and coupling assembling, is equipped with first connecting hole on the key sleeve body, is equipped with the second connecting hole corresponding with first connecting hole on the key strip, and coupling assembling connects the key strip with the key sleeve body through first connecting hole and second connecting hole; the connecting assembly comprises a limiting part, the second connecting hole comprises a limiting cavity, and the limiting cavity is used for limiting the limiting part to rotate in the limiting part. The limiting part of the utility model has self-locking function in the limiting cavity, and the auxiliary positioning tool is not needed to be additionally used for hole finding and limiting of the connecting component, so that the mounting and dismounting procedures can be simplified, and the time and the labor are saved; effectively solved among the prior art sleeve inner space little, the difficult problem of operation, further improved the convenience that the unit head keybar was changed and the dismouting, and then can improve the operating efficiency.

Description

Power head key sleeve, power head and operating machine

Technical Field

The utility model relates to a dig rig technical field soon, especially relate to a unit head key cover, unit head and operation machinery.

Background

The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering, the main working environments are a soil layer and a rock layer, the power head is an important component of the rotary drilling rig, and the buffer key sleeve is a component of the power head.

The buffer key sleeve on the power head of the rotary drilling rig is used as a key part for buffering and torque transmission, and bears larger torque and frequent impact, and the key strip on the key sleeve is a vulnerable part.

The keybar on traditional unit head key cover adopts hexagon socket head cap screw to fix, and it is spacing that the installation need carry on with appurtenance in the sleeve inboard when dismantling, twists the nut in the sleeve outside simultaneously, and the main problem that this process exists is as follows:

1) the key strip is a quick-wear part, the replacement is frequent, the number of connected bolts is large, and the installation and the disassembly are time-consuming and labor-consuming.

2) The inner space of the key sleeve body is narrow, the auxiliary tool is used for finding the hole and limiting, and the operation is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model provides a unit head key sleeve, unit head and operation machinery for solve above-mentioned at least one technical defect among the prior art, realize simple structure, connect reliably, dismantle convenient unit head key sleeve.

In order to achieve the above object, a first aspect of the present invention provides a power head key sleeve, including: the key sleeve body is provided with a first connecting hole;

the key bar is provided with a second connecting hole corresponding to the first connecting hole;

a connection assembly connecting the keybar with the key sleeve body through the first connection hole and the second connection hole;

the connecting assembly comprises a limiting part, the second connecting hole comprises a limiting cavity, and the limiting cavity is used for limiting the limiting part to rotate in the limiting cavity.

According to the utility model provides a unit head key sleeve, spacing chamber includes at least a set of cell body, perhaps

The limiting cavity comprises at least two groups of limiting surfaces.

According to the utility model provides a unit head key sleeve, it is two sets of spacing face is direct links to each other, perhaps

The side edge of one group of the limiting surface is connected with one side edge of the connecting surface, and the side edge of the other group of the limiting surface is connected with the other side edge of the connecting surface.

According to the power head key sleeve provided by the utility model, the connecting component also comprises a fastener;

the locating part comprises a limiting part and a connecting part, the shape of the limiting part is matched with that of the limiting cavity, and the connecting part is connected with the fastening piece.

According to the utility model provides a unit head key sleeve, the cross sectional shape of spacing portion includes but is not limited to one of them of "one" style of calligraphy, "V" style of calligraphy, "Y" style of calligraphy, "ten" style of calligraphy, pentagon, combined graph.

According to the power head key sleeve provided by the utility model, the second connecting hole further comprises a hole body, and the hole body is communicated with the limiting cavity;

and the cross section size of the hole body is smaller than that of the limiting cavity.

According to the power head key sleeve provided by the utility model, the connecting component further comprises a first gasket and a second gasket;

the first gasket is located between the limiting piece and the second connecting hole, and the second gasket is located between the fastener and the first connecting hole.

According to the utility model provides a unit head key sleeve, the locating part is "T" type bolt.

In order to achieve the above object, a second aspect of the present invention provides a power head, including the power head key sleeve of any one of the above aspects.

In order to achieve the above object, a third aspect of the present invention provides a working machine including the power head key sleeve or the power head described above.

The utility model provides a unit head key sleeve through improving coupling assembling and second connecting hole, makes the second connecting hole include spacing chamber. When the connecting assembly fixedly connects the key sleeve body and the key bar through the first connecting hole and the second connecting hole, the limiting part in the connecting assembly can be limited in the limiting cavity, and the limiting cavity prevents the limiting part from circularly moving along the axis of the hole body, so that the limiting part can generate a self-locking effect in the limiting cavity, an auxiliary positioning tool is not required to be additionally used for finding and limiting the hole of the connecting assembly, the mounting and dismounting processes can be simplified, and time and labor are saved; in the dismounting process, only the nut outside the sleeve needs to be loosened, so that the operation is simple and convenient; and effectively solved among the prior art sleeve inner space little, the difficult problem of operation, further improved the convenience of unit head keybar change and dismouting, and then can improve the operating efficiency.

Furthermore, the utility model provides a unit head and operation machinery include above-mentioned unit head key sleeve respectively, consequently possess above-mentioned all advantages.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a power head key sleeve provided by the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a keybar in a power head key sleeve provided by the present invention;

fig. 4 is a cross-sectional view of a keybar in a power head key sleeve provided by the present invention;

fig. 5 is a schematic structural view of a limiting member in a power head key sleeve provided by the present invention;

fig. 6a is one of the schematic diagrams of a limiting cavity in a key sleeve of a power head provided by the present invention;

fig. 6b is a second schematic diagram of a limiting cavity in the key sleeve of the power head provided by the present invention;

fig. 6c is a third schematic view of a limiting cavity in the power head key sleeve provided by the present invention;

fig. 6d is a fourth schematic diagram of a limiting cavity in the power head key sleeve provided by the present invention;

fig. 6e is a fifth schematic view of a limiting cavity in the power head key sleeve provided by the present invention;

fig. 6f is a sixth schematic view of a limiting cavity in the power head key sleeve provided by the present invention;

reference numerals:

1. a key cover body; 11. A first connection hole; 2. A key bar;

21. a second connection hole; 211. A limiting cavity; 2111. A first limiting surface;

2112. a second limiting surface; 2113. A first connection face; 2114. A second connection face;

212. a porous body; 3. A connecting assembly; 31. A limiting member;

311. a limiting part; 312. A connecting portion; 3121. A thread;

32. a fastener; 4. A first gasket; 5. A second gasket.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable 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. "first", "second", "third" and "fourth" do not denote any sequence relationship, but are merely used for convenience of description. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses a innovate under following situation:

in the power head of the existing rotary drilling rig, a key bar 2 and a key sleeve body 1 are fixedly connected by adopting an inner hexagon bolt. When installing, dismantling the key strip 2 and the key cover body 1, all need use appurtenance (interior hexagonal spanner) to stretch into the inside of the key cover body and look for the hole to insert appurtenance downthehole with the hexagon socket head cap screw tip, realize hexagon socket head cap screw's spacing, adopt monkey wrench or other instrument extracting nuts in the outside of the key cover body. The key sleeve body has small internal space, so that the key sleeve body is inconvenient for operation of auxiliary tools, is inconvenient to disassemble, wastes time and labor; and the key bar 2 and the key sleeve body 1 are connected with a large number of hexagon socket head cap bolts, so that the process is carried out for disassembly, and the operation efficiency is low.

Therefore, the utility model provides a unit head key sleeve.

Embodiments of the present invention are described below with reference to fig. 1 to 6 f. It is to be understood that the following description is only exemplary of the present invention and is not intended to constitute any limitation on the present invention.

As shown in fig. 1 to 5, the utility model provides a pair of unit head key sleeve, including the key sleeve body 1, keybar 2 and coupling assembling 3, be equipped with first connecting hole 11 on the key sleeve body 1, be equipped with the second connecting hole 21 corresponding with first connecting hole 11 on the keybar 2, coupling assembling 3 links to each other the key sleeve body 1 with keybar 2 through first connecting hole 11 and second connecting hole 21.

The connecting assembly 3 comprises a limiting member 31 and a fastener 32, the second connecting hole 21 comprises a limiting cavity 211 and a hole body 212, and the structure of the limiting member 31 corresponds to that of the limiting cavity 211, so that the limiting member 31 can be matched with the limiting cavity 211 for limiting, and the limiting member 31 is prevented from rotating in the hole body 212; the fastener 32 is used for cooperating with the limiting member 31 to fixedly connect the key sleeve body 1 and the keybar 2.

Example 1

Referring to fig. 1 to 6a, in the power head key sleeve provided in this embodiment, the limiting cavity 211 includes two sets of limiting surfaces, which are respectively denoted as a first limiting surface 2111 and a second limiting surface 2112, and the first limiting surface 2111 and the second limiting surface 2112 are disposed oppositely.

The first and second limiting

surfaces

2111 and 2112 are directly connected, or the two ends of the first and second limiting

surfaces

2111 and 2112 are indirectly connected through the first and second connection surfaces 2113 and 2114, respectively, to form a groove, i.e., the two side edges of the first limiting surface 2111 are connected to one side edge of the first connection surface 2113 and one side edge of the second connection surface 2114, respectively; two side edges of the second limiting surface 2112 are connected to the other side edge of the first connection surface 2113 and the other side edge of the second connection surface 2114, respectively, as shown in fig. 3 and 6 a.

As shown in fig. 2, the limiting member 31 includes a limiting portion 311 and a connecting portion 312, and the shape of the limiting portion 311 matches the shape of the limiting cavity 211; the connection portion 312 is a columnar structure, and the connection portion 312 can sequentially penetrate through the limiting cavity 211, the hole body 212 and the first connection hole 11 and penetrate out of the first connection hole 11. Threads 3121 are provided on the connecting portion 312, as shown in fig. 5, to threadably connect the connecting portion 312 with the fastener 32.

When the limiting cavity 211 is rectangular in shape, the cross-sectional shape of the limiting member 31 can be 7-shaped as shown in fig. 6 a.

When the connecting assembly 3 is connected, the connecting portion 312 sequentially passes through the limiting cavity 211, passes through the hole body 212, enters the first connecting hole 11, and passes through the first connecting hole 11, meanwhile, the limiting portion 311 is clamped into the limiting cavity 211 to limit, and the end of the passing-out connecting portion 312 is in threaded connection with the fastening member 32, so that the connecting assembly 3 fixedly connects the key sleeve body 1 and the key bar 2.

When the connecting assembly 3 of the present embodiment is installed, it can be understood that the fastening member 32 rotates clockwise along the axis of the connecting portion 312, so that the limiting portion 311 abuts against the first limiting surface 2111.

When the connecting assembly 3 of the present embodiment is disassembled, it can be understood that the fastening member 32 rotates counterclockwise along the axis of the connecting portion 312, so that the limiting portion 311 abuts against the second limiting surface 2112. Because the first limiting surface 2111 and the second limiting surface 2112 can limit the limiting part 311 to rotate around the axis of the connecting part 312 in the limiting cavity 211, the use of auxiliary tools for hole finding and positioning of the connecting component 3 can be effectively avoided, the installation process and the installation time are omitted, and the operation efficiency is improved.

In this embodiment, the shape of the limiting cavity 211 can be rectangular, square or triangular, and any other shape besides circle, such as a combined figure, etc., which can realize the limiting function.

When the shape of the limiting chamber 211 adopts a combined pattern, a combination of a circle and a rectangle can be adopted, as shown in fig. 6e and 6f, the circle is located at the center of the rectangle.

In this embodiment, the first connection surface 2113 and the second connection surface 2114 may be curved surfaces, as shown in fig. 3; or may be planar as shown in figure 6 a. The shape of the limiting part 311 changes along with the shape of the limiting cavity 211, so that the limiting part 311 can completely fall into the limiting cavity 211, and the rotating shape of the limiting part 311 can be restricted in the limiting cavity 211.

In this embodiment, the stopper portion 311 and the connecting portion 312 are preferably integrally formed, so that the processing is convenient and the structural strength is high.

As a preferred embodiment, as shown in fig. 1 and 2, the connecting assembly 3 further includes a first spacer 4 and a second spacer 5, the first spacer 4 is connected between the limiting member 31 and the second connecting hole 21, and the second spacer 5 is disposed between the fastening member 32 and the first connecting hole 11 to prevent the connecting assembly 3 from loosening.

In this embodiment, the limiting cavity 211 is communicated with the hole body 212, and the cross-sectional dimension of the limiting cavity 211 is larger than that of the hole body 212, wherein the cross-section is parallel to the plane where the end surface of the hole body 212 is located, so that the limiting portion 311 is clamped in the accommodating cavity 211 and cannot enter the hole body 212.

In this embodiment, the limiting member 31 may be a T-bolt, and the fastening member 32 may be a nut.

The following embodiments are described with the shape of the confinement chamber 211 being rectangular.

Example 2

Referring to fig. 1 to 2 and fig. 6b, on the basis of the above embodiment 1, different from the above embodiment 1, the power head key sleeve provided in this embodiment includes two sets of the above groove bodies arranged in a mirror image manner in the limiting cavity 211.

When the limiting cavity 211 is shaped like two sets of groove bodies arranged in a mirror image manner, the cross section of the limiting member 31 is shaped like a T, or the cross section of the limiting portion 311 is shaped like a straight line, which is equivalent to that the limiting cavity 211 has four limiting surfaces.

Or, when the limiting cavity 211 is formed by two sets of grooves crossing at will, the cross section of the limiting part 311 is V-shaped, which is equivalent to the limiting cavity 211 having four limiting surfaces.

In this embodiment, the structure of the limiting portion 311 may be a cylinder or a prism.

Example 3

Referring to fig. 1 to 2 and fig. 6c, on the basis of the foregoing embodiment 1, different from the foregoing embodiment 1, in the power head key sleeve provided in this embodiment, the limiting cavity 211 includes three sets of the above-mentioned groove bodies arranged in an array, that is, the limiting cavity 211 is formed by performing a circumferential array with a center of one end of the above-mentioned groove body as a circle center.

When the shape of the limiting cavity 211 is three groups of groove bodies arranged in an array, the cross section of the limiting part 311 is in a shape of a Y, which is equivalent to that the limiting cavity 211 has six limiting surfaces, so that the limiting effect is better.

Example 4

On the basis of the foregoing embodiment 1, different from the foregoing embodiment 1, in the power head key sleeve provided in this embodiment, the limiting cavity 211 includes four sets of groove bodies, and the four sets of groove bodies may be arranged along a circumferential array, so that the cross-sectional shape of the limiting portion 311 is "ten" shape, which is equivalent to that the limiting cavity 211 has eight limiting surfaces.

Example 5

Referring to fig. 1 to 2 and fig. 6d, on the basis of embodiment 1, different from embodiment 1, in the power head key sleeve provided in this embodiment, the limiting cavity 211 includes five sets of groove bodies, so that the cross-sectional shape of the limiting portion 311 is approximately pentagonal, which is equivalent to the limiting cavity 211 having ten limiting surfaces.

The above-mentioned embodiments are only some embodiments of the present invention, and other embodiments are also possible, for example, the limiting cavity 211 includes a plurality of grooves, and the plurality of grooves are arranged along the central array of the connecting surface of any one of the grooves, for example, six groups of grooves, seven groups of grooves, or eight groups of grooves, etc.

The shape of the groove body is not limited, and can also be in the shape of the eight diagrams.

The utility model discloses an on the other hand provides a unit head, including the unit head key sleeve of above-mentioned arbitrary, also includes foretell all advantages.

The utility model discloses an on the other hand provides an operation machine, including the unit head key sleeve of above-mentioned arbitrary item, or including above-mentioned unit head, possess foretell all advantages.

The utility model discloses an innovation point lies in: the utility model discloses a improve coupling assembling 3 and second connecting hole 21, make second connecting hole 21 include spacing chamber 211 and hole body 212. When the connecting assembly 3 fixedly connects the key sleeve body 1 and the key bar 2 through the first connecting hole 11 and the second connecting hole 21, the limiting part 311 in the connecting assembly 3 can be limited in the limiting cavity 211, and the limiting cavity 211 prevents the limiting part 311 from performing circular motion along the axis of the hole body 212, so that the limiting part 311 generates a self-locking effect in the limiting cavity 211, an auxiliary positioning tool is not needed for finding and limiting the connecting assembly 3, the mounting and dismounting processes can be simplified, and time and labor are saved; and dismantle the in-process, only need loosen the sleeve outside the nut can, easy operation is convenient, has effectively solved among the prior art sleeve inner space little, the difficult problem of operating to the convenience of power head keybar 2 change and dismouting has further been improved, and then can improve the operating efficiency.

The utility model discloses an installation: the keybar 2 is placed behind the mounting groove of the key sleeve body 1, installs first gasket 4 and locating part 31, because can realize self-locking function between the spacing portion 311 of locating part 31(T type bolt) and the spacing chamber 211, consequently can directly use and wear out the tip installation second gasket 5 and the fastener 32 (nut) of first connecting hole 11 at locating part 31, directly loosen during the dismantlement lie in the outside fastener 32 (nut) of key sleeve body 1 can.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A powerhead holster, comprising:

the key sleeve body is provided with a first connecting hole;

2. The powerhead keypad of claim 1, wherein the spacing cavity comprises at least one set of grooves, or

The limiting cavity comprises at least two groups of limiting surfaces.

3. The key sleeve of power head of claim 2, wherein two sets of said limiting surfaces are directly connected, or

4. The powerhead keypad of any of claims 1-3, wherein the coupling assembly further comprises a fastener;

5. The key sleeve of the power head of claim 4, wherein the cross-sectional shape of the limiting portion includes, but is not limited to, one of a line shape, a V shape, a Y shape, a cross shape, a pentagon shape, and a combination thereof.

6. The powerhead keymat of claim 4, wherein the second connecting aperture further comprises an aperture body in communication with the spacing cavity;

7. The powerhead holster of claim 4, wherein the coupling assembly further comprises a first spacer and a second spacer;

the first gasket is located between the limiting piece and the second connecting hole, and the second gasket is located between the fastening piece and the first connecting hole.

8. The powerhead keypad of claim 7, wherein the stop is a "T" bolt.

9. A powerhead comprising a powerhead collar according to any of claims 1 to 8.

10. A work machine comprising a powerhead holster according to any of claims 1 to 8 or a powerhead according to claim 9.