CN111441811A - Bottom lifting frame and hydraulic support - Google Patents

Abstract

The invention provides a bottom lifting frame and a hydraulic support, wherein the bottom lifting frame comprises: the lower surface of the top plate is provided with a first arc structure; the side plates are connected with the top plate and positioned on two sides of the top plate, and the side plates are provided with first pin holes; the lug plates are connected with the top plate and positioned on two sides of the top plate, the lug plates and the side plates are arranged around the top plate, and the lug plates are provided with second pin holes; wherein the bottom lifting frame is configured as an integrated structure. According to the bottom lifting frame provided by the invention, the top plate, the side plates and the lug plates are arranged into an integrated structure, so that faults caused by welding seam open welding of a welding structure are avoided, the structure is simple, and the cost is saved. The first arc structure on the lower surface of the top plate is in arc contact with the top of the bottom lifting jack, so that the damage caused by bending deformation of the connected pin shaft is avoided.

Description

Bottom lifting frame and hydraulic support

Technical Field

The invention relates to the technical field of coal mine equipment, in particular to a bottom lifting frame and a hydraulic support.

Background

In the bottom lifting process of the hydraulic support, the cylinder bottom of the bottom lifting jack extends out to be in contact with the top surface of the push rod, pressurization is continued, the bottom lifting jack can continue to extend out of the stroke, and the front end of the base inclines upwards. When the hydraulic support moves forwards, the pushing jack is operated to withdraw the piston rod of the pushing jack, the support moves forwards, and in the whole process, the cylinder bottom of the bottom lifting jack is always in frictional contact with the top surface of the push rod. The change of underground environment is endless, and the welding seam of the lug plate on the base and the bottom lifting frame is easy to open and weld under the impact force with different magnitudes.

The bottom lifting frame is formed by welding steel plates and is mainly connected into a whole by fillet welding. When the hydraulic support is stressed and damaged, the welding seam is welded to cause the pin shaft to fall off, so that the operation of the hydraulic support is influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

To this end, a first aspect of the invention provides a lifting base frame.

A second aspect of the invention provides a hydraulic mount.

In view of the above, a first aspect of the present invention provides a bottom lifting frame, including: the lower surface of the top plate is provided with a first arc structure; the side plates are connected with the top plate and positioned on two sides of the top plate, and the side plates are provided with first pin holes; the lug plates are connected with the top plate and positioned on two sides of the top plate, the lug plates and the side plates are arranged around the top plate, and the lug plates are provided with second pin holes; wherein the bottom lifting frame is configured as an integrated structure.

According to the bottom lifting frame provided by the invention, the top plate, the side plates and the lug plates are arranged into an integrated structure, so that faults caused by welding seam open welding of a welding structure are avoided, the structure is simple, and the cost is saved.

Specifically, the first arc structure on the lower surface of the top plate is in arc contact with the top of the bottom lifting jack, so that the connected pin shaft is prevented from being damaged due to bending deformation. The side plate and the lug plate are arranged around the top plate, the first pin hole in the side plate is used for being hinged with the bottom lifting jack and the bottom lifting frame, and the second pin hole in the lug plate is used for being hinged with the bottom lifting frame and the base. Therefore, when the bottom lifting jack works, one end of the base is driven by lifting the bottom frame, and the lifting of the base is completed.

In addition, according to the bottom lifting frame in the above technical solution provided by the present invention, the following additional technical features may also be provided:

in the above technical scheme, further, the bottom lifting frame further comprises a lifting hole, and the lifting hole is arranged on the ear plate.

In the technical scheme, the lifting holes are formed in the ear plates, and the bottom frame is lifted in the installation process, so that the lifting holes are directly lifted for use, the use of materials such as lifting ring seats and lifting rings is reduced, and the cost is reduced.

In any of the above technical solutions, further, the hoisting hole is also disposed on the top plate.

In this technical scheme, the hole for hoist sets up simultaneously on curb plate and roof, easily manual operation, has also alleviateed the weight of lifting the underframe frame simultaneously.

A second aspect of the present invention provides a hydraulic mount, including: a bottom lifting mechanism; and a bottom lifting frame according to any one of the above technical solutions; the bottom lifting mechanism comprises a bottom lifting jack, the bottom lifting jack is hinged with a bottom lifting frame, the bottom lifting frame is located above the bottom lifting mechanism, and the bottom lifting frame is hinged with the bottom lifting mechanism.

In this technical scheme, because hydraulic support includes the whole beneficial effect of lifting the bottom jack in any above-mentioned technical scheme, this hydraulic support has further improved hydraulic support's life because hydraulic support lifts the bottom frame in any above-mentioned technical scheme. The bottom lifting jack is hinged with the bottom lifting frame. The bottom lifting frame is positioned above the bottom lifting mechanism and is hinged with the bottom lifting mechanism. The bottom lifting jack is arranged in such a way that when the bottom lifting jack works, the bottom lifting mechanism is driven by lifting the bottom frame, and the bottom lifting function is realized.

In the above technical solution, further, the bottom lifting jack includes: one end of the piston rod is provided with a second arc structure; wherein, the first circular arc structure is contacted with the second circular arc structure.

In the technical scheme, a second arc structure is arranged at the top end of a piston rod of the bottom lifting jack, and the first arc structure is in contact with the second arc structure. When the bottom lifting jack is in operation, the first arc structure and the second arc structure are in arc contact, so that the connected pin shaft is prevented from being bent and deformed to be damaged.

In any of the above technical solutions, further, the bottom lifting mechanism includes: the base is positioned below the bottom lifting jack and connected with the bottom lifting frame.

In the technical scheme, the base is arranged below the bottom lifting jack and is connected with the bottom lifting frame, so that when the bottom lifting jack works, the base is lifted by lifting one end of the bottom frame to drive the base.

In any of the above technical solutions, further, the bottom lifting mechanism further includes: the push rod is positioned on the central line of the base along the length direction, and one end of the push rod extends out of the base; under the condition that the bottom lifting jack works, the bottom of the bottom lifting jack is in contact with the push rod.

In this solution, the push rod is located on the center line of the base along the length direction, and one end of the push rod extends out of the base to connect with the conveyor. The pusher is used on the one hand for pushing the conveyor and on the other hand for the movement of the hydraulic support itself. When the bottom lifting jack works, the bottom of the bottom lifting jack continuously descends until the bottom lifting jack is in frictional contact with the upper surface of the push rod, and when the bottom lifting jack continues to work, one end of the base is lifted, so that the bottom lifting function is realized.

In any of the above technical solutions, further, the piston rod is provided with a third pin hole, and the third pin hole is close to the second arc structure and penetrates through the piston rod along a direction perpendicular to the extending direction of the piston rod.

In the technical scheme, a third pin hole formed in a piston rod of the bottom lifting jack is used for being hinged with the bottom lifting frame.

In any of the above technical solutions, further, the base is provided with a fourth pin hole, and the fourth pin hole and the second pin hole are correspondingly arranged.

In this technical scheme, set up the fourth pinhole that corresponds with the second pinhole on the base to realize lifting the articulated of underframe frame and base.

In any of the above technical solutions, further, the hydraulic support further includes: the first pin shaft penetrates through the first pin hole and the third pin hole and is used for hinging the bottom lifting jack with the bottom lifting frame; and the second pin shaft penetrates through the second pin hole and the fourth pin hole and is used for lifting the bottom frame and hinging the bottom frame with the base.

In the technical scheme, the first pin shaft penetrates through the first pin hole in the bottom lifting jack and the second pin hole in the bottom lifting frame, so that the bottom lifting jack is hinged to the bottom lifting frame. And the second pin shaft penetrates through a third pin hole in the bottom lifting frame and the base, so that the bottom lifting frame is hinged with the base. By the arrangement, when the bottom lifting jack works, the base and the bottom lifting frame can realize follow-up, and the bottom lifting jack is better adapted to realize the bottom lifting function.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a bottom lifting frame according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angle of the bottom lifting frame of the embodiment shown in FIG. 1;

FIG. 3 is a front view of the bottom lift frame of the embodiment of FIG. 1;

FIG. 4 is a cross-sectional view of the embodiment of FIG. 3 taken along line A-A of the raised base frame;

FIG. 5 is a cross-sectional view of the embodiment of FIG. 4 taken along the direction B-B of the bottom lifting frame;

FIG. 6 is a schematic structural diagram of a bottom raising mechanism according to an embodiment of the present invention;

FIG. 7 is a top view of the embodiment of FIG. 6;

FIG. 8 is a cross-sectional view taken along line C-C of the embodiment of FIG. 7.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:

100 lifting a bottom frame, 102 lifting a top plate, 104 lifting side plates, 106 first pin holes, 108 lug plates, 110 second pin holes, 112 first circular arc structures, 114 hoisting holes, 200 lifting bottom mechanisms, 202 lifting bottom jacks, 204 bases, 206 push rods, 300 first pin shafts and 400 second pin shafts.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

Referring to fig. 1-8, a lifting base frame 100 and hydraulic support provided according to some embodiments of the present invention will be described.

Example one

As shown in fig. 1 to 5, a first embodiment of the present invention provides a bottom lifting frame 100, including: top panel 102, side panel 104, and ear panel 108.

The lower surface of the top plate 102 is provided with a first arc structure 112; the side plate 104 is connected with the top plate 102 and positioned at two sides of the top plate 102, and the side plate 104 is provided with a first pin hole 106; the ear plate 108 is connected with the top plate 102 and located on two sides of the top plate 102, the ear plate 108 and the side plate 104 are arranged around the top plate 102, and the ear plate 108 is provided with a second pin hole 110; wherein the lifting bottom frame 100 is configured as an integrated structure.

The bottom lifting frame 100 provided by the embodiment has the advantages that the top plate 102, the side plates 104 and the ear plates 108 are arranged into an integrated structure, so that the faults caused by welding seam opening of a welding structure are avoided, the structure is simple, and the cost is saved.

Specifically, the first arc structure 112 on the lower surface of the top plate 102 contacts with the top arc of the bottom lifting jack 202, so that the connected pin shaft is prevented from bending and deforming and being damaged. The side plate 104 and the ear plate 108 are arranged around the top plate 102, the first pin hole 106 on the side plate 104 is used for hinging with the bottom lifting jack 202 and the bottom lifting frame 100, and the second pin hole 110 on the ear plate 108 is used for hinging the bottom lifting frame 100 with the base 204. Therefore, when the bottom lifting jack 202 works, one end of the base 204 is driven by lifting the bottom frame 100, and the lifting of the base 204 is completed.

Example two

As shown in fig. 1, in the above embodiment, further, the bottom lifting frame 100 further includes a hoisting hole 114. The lifting holes 114 are formed in the ear plates 108.

In this embodiment, the hoisting holes 114 are disposed on the ear plates 108, and are directly hoisted for use when the bottom lifting frame 100 is installed, so that the use of materials such as a lifting ring seat and a lifting ring is reduced, and the cost is reduced.

Further, as shown in fig. 2, a lifting hole 114 is also formed on the top plate 102.

In this embodiment, the lifting holes 114 are formed on both the side plates 104 and the top plate 102, which facilitates manual operation and also reduces the weight of the lifting bottom frame 100.

EXAMPLE III

As shown in fig. 6, a hydraulic support according to a third embodiment of the present invention includes a bottom raising mechanism 200 and a bottom raising frame 100 according to any of the above embodiments.

The bottom lifting mechanism 200 comprises a bottom lifting jack 202, the bottom lifting jack 202 is hinged to the bottom lifting frame 100, the bottom lifting frame 100 is located above the bottom lifting mechanism 200, and the bottom lifting frame 100 is hinged to the bottom lifting mechanism 200.

In this embodiment, since the hydraulic support includes the bottom lifting frame 100 in any of the above embodiments, the hydraulic support has all the advantages of the bottom lifting jack 202 in any of the above embodiments, and the service life of the hydraulic support is further prolonged. The bottom lifting jack 202 is hinged with the bottom lifting frame 100. The bottom lifting frame 100 is located above the bottom lifting mechanism 200 and is hinged with the bottom lifting mechanism 200. By such arrangement, when the bottom lifting jack 202 works, the bottom lifting mechanism 200 is driven by the bottom lifting frame 100, so as to realize the bottom lifting function.

Example four

In the above embodiment, further, the bottom-lifting jack 202 includes a piston rod.

One end of the piston rod is provided with a second arc structure; wherein the first arc structure 112 is in contact with the second arc structure.

In this embodiment, the top end of the piston rod of the bottom-lifting jack 202 is provided with a second arc structure, and the first arc structure 112 is in contact with the second arc structure. During the operation of the bottom-lifting jack 202, the first arc structure 112 and the second arc structure are in arc contact, so that the connected pin shaft is prevented from being bent and deformed to be damaged.

Further, as shown in fig. 6 to 8, the bottom lift mechanism 200 includes a base 204.

The base 204 is located below the bottom-lifting jack 202 and is connected to the bottom-lifting frame 100.

In this embodiment, the base 204 is disposed below the bottom-lifting jack 202 and connected to the bottom-lifting frame 100, so that when the bottom-lifting jack 202 works, one end of the base 204 is driven by the bottom-lifting frame 100, thereby lifting the base 204.

Further, as shown in fig. 8, the bottom lift mechanism 200 further includes a push rod 206.

The push rod 206 is positioned on the central line of the base 204 along the length direction, and one end of the push rod 206 extends out of the base 204; when the bottom-lifting jack 202 is operated, the bottom of the bottom-lifting jack 202 contacts the push rod 206.

In this embodiment, the push rod 206 is located on the centerline of the base 204 along the length and has one end extending out of the base 204 to connect to the conveyor. The pusher 206 is used for pushing the conveyor on the one hand and for the movement of the hydraulic support itself on the other hand. When the bottom-lifting jack 202 works, the bottom of the bottom-lifting jack 202 continuously descends until the bottom of the bottom-lifting jack 202 is in frictional contact with the upper surface of the push rod 206, and when the bottom-lifting jack 202 continuously works, one end of the base 204 is lifted, so that the bottom-lifting function is realized.

Further, the piston rod is provided with a third pin hole.

The third pin hole is close to the second arc structure and penetrates through the piston rod along the extending direction perpendicular to the piston rod.

In this embodiment, a third pin hole is provided in the piston rod of the bottom lifting jack 202 for hinging with the bottom lifting frame 100.

Further, the base 204 is provided with a fourth pin hole, and the fourth pin hole is arranged corresponding to the second pin hole 110.

In this embodiment, a fourth pin hole corresponding to the second pin hole 110 is provided on the base 204 to enable the hinge connection of the lifting bottom frame 100 with the base 204.

EXAMPLE five

In any of the above embodiments, further, as shown in fig. 6, the hydraulic bracket further includes a first pin 300 and a second pin 400.

A first pin 300 passes through the first pin hole 106 and the third pin hole, and is used for hinging the bottom lifting jack 202 with the bottom lifting frame 100; the second pin 400 passes through the second pin hole 110 and the fourth pin hole, and is used for hinging the bottom lifting frame 100 with the base 204.

In this embodiment, the first pin 300 passes through the first pin hole 106 on the bottom lifting jack 202 and the second pin hole 110 on the bottom lifting frame 100, so as to realize the hinge joint of the bottom lifting jack 202 and the bottom lifting frame 100. The second pin 400 passes through the third pin hole on the bottom lifting frame 100 and the base 204, and the bottom lifting frame 100 and the base 204 are hinged. By the arrangement, when the bottom lifting jack 202 works, the base 204 and the bottom lifting frame 100 can realize follow-up, and are better adapted to the bottom lifting jack 202, so that a bottom lifting function is realized.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 6 to 8, in an embodiment, the hydraulic support of the present invention mainly includes a base 204, a bottom-raising frame 100, a bottom-raising jack 202, a push rod 206, a first pin 300, and a second pin 400.

As shown in fig. 6, the bottom lifting jack 202 is connected to the bottom lifting frame 100 by a first pin 300, and the base 204 is connected to the bottom lifting frame 100 by a second pin 400.

As shown in fig. 6 and 8, the push rod 206 is disposed at the middle position of the base 204, and when the hydraulic bracket moves forward, the cylinder bottom of the bottom-raising jack 202 contacts the top surface of the push rod 206.

As shown in fig. 1 to 5, the raised bottom frame 100 is an integrated casting structure, and the structure is divided into three parts, namely a front side plate 104, a rear side plate 104, a top plate 102 at the top, and left and right ear plates 108.

As shown in fig. 1 and 2, the side plate 104 is provided with a first pin hole 106 for mounting a first pin 300. The ear plate 108 is provided with a second pin hole 110 for mounting a second pin 400.

As shown in fig. 1 to 5, a hoisting hole 114 is formed on the top plate 102, and a first arc structure 112 is formed on the lower surface of the top plate 102.

As shown in fig. 6 to 8, the first arc structure 112 makes arc surface contact with the second arc structure on the top of the piston rod of the bottom-lifting jack 202. When the hydraulic support lifts the bottom, the arc surface contact effectively avoids the damage of the first pin shaft 300.

The top plate 102 of the bottom lifting frame 100 provided in this embodiment is provided with a first arc structure 112. In the operation process of the bottom lifting jack 202, the bottom lifting jack 202 is in contact with the arc surface of the bottom lifting frame 100, so that the first pin shaft 300 connected with the bottom lifting frame is prevented from being bent and deformed to be damaged. The bottom lifting frame 100 is of an integrated casting structure, and faults caused by welding seam opening by adopting a welding structure are avoided. The direct lifting bottom frame 100 is provided with the hoisting hole 114, the structure is simple, the direct lifting bottom frame is directly used during installation, the use of materials such as a lifting ring seat and a lifting ring is reduced, and the cost is effectively reduced.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. 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 the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A bottom lift frame, comprising:

the lower surface of the top plate is provided with a first arc structure;

the side plates are connected with the top plate and located on two sides of the top plate, and the side plates are provided with first pin holes;

the lug plates are connected with the top plate and positioned on two sides of the top plate, the lug plates and the side plates are arranged around the periphery of the top plate, and the lug plates are provided with second pin holes;

wherein the bottom lifting frame is configured as an integral structure.

2. The bottom lifting frame of claim 1, further comprising:

and the hoisting hole is formed in the ear plate.

3. The bottom lifting frame of claim 2, wherein the lifting holes are further provided in the top plate.

4. A hydraulic mount, comprising:

a bottom lifting mechanism; and

a bottom lifting frame as claimed in any one of claims 1 to 3;

the bottom lifting mechanism comprises a bottom lifting jack, the bottom lifting jack is hinged to a bottom lifting frame, the bottom lifting frame is located above the bottom lifting mechanism, and the bottom lifting frame is hinged to the bottom lifting mechanism.

5. The hydraulic mount of claim 4, wherein the bottom lifting jack comprises:

one end of the piston rod is provided with a second arc structure;

wherein the first arc structure is in contact with the second arc structure.

6. The hydraulic mount of claim 5, wherein the bottom lift mechanism comprises:

the base is located below the bottom lifting jack and connected with the bottom lifting frame.

7. The hydraulic mount of claim 6, wherein the bottom lift mechanism further comprises:

the push rod is positioned on a central line of the base along the length direction, and one end of the push rod extends out of the base;

under the condition that the bottom lifting jack works, the bottom of the bottom lifting jack is in contact with the push rod.

8. The hydraulic mount of claim 7, wherein the piston rod is provided with a third pin hole adjacent to the second rounded structure and extending through the piston rod in a direction perpendicular to the direction of extension of the piston rod.

9. The hydraulic mount of claim 8, wherein the base defines a fourth pin aperture, the fourth pin aperture corresponding to the second pin aperture.

10. The hydraulic mount of claim 9, further comprising:

the first pin shaft penetrates through the first pin hole and the third pin hole and is used for hinging the bottom lifting jack with the bottom lifting frame;

and the second pin shaft penetrates through the second pin hole and the fourth pin hole and is used for hinging the bottom lifting frame with the base.

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