CN211144545U

CN211144545U - Hydraulic support

Info

Publication number: CN211144545U
Application number: CN201922319613.2U
Authority: CN
Inventors: 桑华
Original assignee: Shanxi Daping Meigude Mining Material Co ltd
Current assignee: Shanxi Daping Meigude Mining Material Co ltd
Priority date: 2019-12-21
Filing date: 2019-12-21
Publication date: 2020-07-31
Anticipated expiration: 2029-12-21

Abstract

A hydraulic support comprises a base, a plurality of first jacks, a plurality of supporting plates, a hydraulic telescopic rod, a connecting rod, a shield frame, a buffer telescopic rod and a top beam; the lower end surface of the base is provided with a plurality of universal wheels, and the base is provided with a buffer frame with a damping and buffering effect; the hydraulic telescopic rods are rotatably connected with the top beam and the buffer frame; the shield frame is rotationally connected with the top beam; the plurality of connecting rods are rotatably connected with the base and the shielding frame; when the shield frame works, an included angle between the central axis of the connecting rod and the central axis of the shield frame is an obtuse angle; the plurality of buffer telescopic rods are positioned in obtuse angle spaces formed by the plurality of connecting rods and the shield frame, and the plurality of buffer telescopic rods are rotatably connected with the shield frame and the plurality of connecting rods; the first jacks are respectively arranged in the mounting grooves on the lower end face of the base one by one, and the first jacks are vertical to the base; the supporting plates are respectively arranged at the telescopic ends of the first jacks one by one. The utility model provides a hydraulic support conveniently removes, and stability is good and convenient to support adjustment level.

Description

Hydraulic support

Technical Field

The utility model relates to a hydraulic support technical field especially relates to a hydraulic support.

Background

The hydraulic support is a structure used for controlling the mine pressure of the coal face. The hydraulic support is used for providing reliable and rapid support for the fully mechanized coal mining face, and meanwhile, the roller coal mining machine is used for mining coal, so that coal seam mining is carried out under safe and reliable working conditions, high yield and high efficiency of the working face are guaranteed, and the hydraulic support is a structure for controlling mine pressure of the coal mining face; however, the existing hydraulic support is complex in structure, large in size, heavy and inconvenient to move, and when a support layer is supported, a support base is easy to incline to cause the state of the hydraulic support to be unstable, so that potential safety hazards exist; to this end, a hydraulic mount is proposed in the present application.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem that exists among the background art, the utility model provides a hydraulic support conveniently removes, and stability is good to the support slope is avoided to the support adjustment level to the convenience.

(II) technical scheme

In order to solve the problems, the utility model provides a hydraulic support, which comprises a base, a plurality of first jacks, a plurality of support plates, a hydraulic telescopic rod, a connecting rod, a shield frame, a buffer telescopic rod and a top beam;

the lower end surface of the base is provided with a plurality of universal wheels, the lower end surface of the base is provided with a plurality of mounting grooves, and the base is provided with a buffer frame with a damping and buffering effect;

one ends of the hydraulic telescopic rods are rotatably connected with the top beam, and the other ends of the hydraulic telescopic rods are connected with the buffer frame;

the upper end of the shield frame is rotatably connected with one end of the top beam; one ends of the connecting rods are rotatably connected with the base, the other ends of the connecting rods are rotatably connected with the lower end face of the shield frame, and the connecting rods are distributed side by side; when the shield frame works, an included angle between the central axis of the connecting rod and the central axis of the shield frame is an obtuse angle; the plurality of buffer telescopic rods are positioned in obtuse angle spaces formed by the plurality of connecting rods and the shield frame, one ends of the plurality of buffer telescopic rods are rotatably connected with the shield frame, and the other ends of the plurality of buffer telescopic rods are respectively rotatably connected with the plurality of connecting rods; wherein, the buffer telescopic rods correspond to the connecting rods one by one;

the plurality of first jacks are respectively positioned in the plurality of mounting grooves, and the fixed ends of the plurality of first jacks respectively press the bottom surfaces of the plurality of mounting grooves, wherein the first jacks correspond to the mounting grooves one by one, and the first jacks are vertical to the base;

the supporting plates are respectively arranged at the telescopic ends of the first jacks one by one.

Preferably, the lifting device comprises an upper protection plate and a plurality of second jacks;

one end of the side protection plate is rotatably connected with the other end of the top beam; the fixed ends of the second jacks are rotatably connected with the lower end face of the top beam, the telescopic ends of the second jacks are rotatably connected with the lower end face of the side protection plate, and the second jacks are distributed side by side.

Preferably, the number of the mounting grooves is four; the four mounting grooves are respectively arranged at four right-angle sides of the lower end surface of the base.

Preferably, a plurality of reinforcing rods are included; a plurality of stiffeners are respectively and uniformly and vertically arranged on the lower end surface of the supporting plate, wherein the lower ends of the stiffeners are conical.

Preferably, the length of the reinforcing rod is 2-5 cm.

Preferably, the buffer frame comprises a plurality of nuts, a plurality of threaded rods, a plurality of first telescopic rods, a plurality of first springs, a mounting plate, a plurality of second springs, a plurality of second telescopic rods and an inverted L-shaped frame;

the inverted L-shaped frame is positioned above the base, the notch of the inverted L-shaped frame faces the base, and the end face of the inverted L-shaped frame, which is far away from the base, is provided with a plurality of first through holes;

the plurality of nuts are respectively in threaded fit with the plurality of threaded rods, and the plurality of nuts respectively press the inverted L-shaped frame towards the end face of the inverted L-shaped frame;

the first springs are respectively sleeved on the outer sides of the first telescopic rods one by one, and two ends of the first springs are respectively connected with the mounting plate and the inverted L frame;

the plurality of second telescopic rods are uniformly distributed side by side, one ends of the plurality of second telescopic rods are connected with the base, and the other ends of the plurality of second telescopic rods are connected with the lower end face and the upper end face of the mounting plate; the plurality of second springs are respectively sleeved on the outer sides of the plurality of second telescopic rods one by one, and the two ends of the plurality of second springs are respectively connected with the mounting plate and the base.

Preferably, the device comprises a plurality of first sliding parts, wherein a plurality of vertical sliding grooves are arranged on the inner wall of the notch of the inverted L-shaped frame;

a plurality of first sliders all set up on the mounting panel, and a plurality of vertical spouts of a plurality of first sliders cooperation sliding connection one by one respectively.

Preferably, each buffering telescopic rod comprises a mounting cylinder, a third spring, a second sliding part, an elastic stretching part and a sliding rod;

one end of the mounting cylinder is rotatably connected with the connecting rod, and the other end of the mounting cylinder is provided with a third through hole;

one end of the sliding rod is rotatably connected with the shielding frame, and the other end of the sliding rod penetrates through the third through hole and is connected with a second sliding piece which is arranged in the mounting cylinder in a sliding manner;

the third spring is positioned in the mounting cylinder, the third spring is sleeved on the outer side of the sliding rod, and two ends of the third spring are respectively connected with one end of the second sliding piece and the mounting cylinder;

the elastic stretching piece is positioned in the mounting cylinder, one end of the elastic stretching piece is connected with the other end of the second sliding piece and the bottom surface of the mounting cylinder

The above technical scheme of the utility model has following profitable technological effect:

the utility model discloses in, during the use, move the support through the universal wheel, after hydraulic support moved to the assigned position, through all being connected a plurality of hydraulic telescoping rod with hydraulic system, control a plurality of hydraulic telescoping rod through hydraulic system and extend simultaneously in order to realize the rising of back timber, support supporting layer such as cliff or coal seam through the back timber, along with the rising of back timber, the contained angle between shield frame and the connecting rod increases gradually, the buffering telescopic link is stretched, the potential energy of one end is stored in the buffering telescopic link, when stone etc. drop to shield frame, extrude the buffering telescopic link, the elastic force that the buffering telescopic link has can cushion vibrations, avoid heavy object striking to cause the damage to shield frame; the hydraulic telescopic rods are arranged on the buffer frame, and when the pressure of the supporting layer on the top beam is overlarge, the hydraulic telescopic rods are buffered through the arranged buffer frame, so that the hydraulic telescopic rods are prevented from being damaged due to the overlarge pressure; the support plate is driven to be pressed against the ground by controlling the extension of the first jacks, so that the stability of the hydraulic support is improved, and when the base inclines, the base is adjusted to be horizontal by adjusting the extension lengths of the first jacks, and the stability of the support is guaranteed.

Drawings

Fig. 1 is a schematic structural view of a hydraulic support according to the present invention.

Fig. 2 is a schematic structural view of a buffer frame in a hydraulic support according to the present invention.

Fig. 3 is the utility model provides a buffer telescopic rod's among hydraulic support structural schematic.

The reference numbers of the device comprise 1, a base, 2, a first jack, 3, a support plate, 4, a reinforcing rod, 5, a universal wheel, 6, a buffer frame, 7, a hydraulic telescopic rod, 8, a connecting rod, 9, a shield frame, 10, a buffer telescopic rod, 11, a top beam, 12, a side protection plate, 13, a second jack, 14, a nut, 15, a threaded rod, 16, a first telescopic rod, 17, a first spring, 18, a mounting plate, 19, a first sliding piece, 20, a second through hole, 21, a second spring, 22, a second telescopic rod, 23, an inverted L-shaped frame, 24, a mounting cylinder, 25, a third spring, 26, a second sliding piece, 27, an elastic stretching piece and 28, a sliding rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the hydraulic support provided by the present invention comprises a base 1, a plurality of first jacks 2, a plurality of support plates 3, a hydraulic telescopic rod 7, a connecting rod 8, a shield frame 9, a buffer telescopic rod 10 and a top beam 11;

the lower end surface of the base 1 is provided with a plurality of universal wheels 5, the lower end surface of the base 1 is provided with a plurality of mounting grooves, and the base 1 is provided with a buffer frame 6 with a damping and buffering effect;

further, the universal wheel 5 is a universal wheel with a brake;

one end of each of the hydraulic telescopic rods 7 is rotatably connected with the top beam 11, the other end of each of the hydraulic telescopic rods 7 is connected with the buffer frame 6, each of the hydraulic telescopic rods 7 is connected with the hydraulic system, and the hydraulic systems control the hydraulic telescopic rods 7 to extend or contract simultaneously so as to realize the ascending or descending of the top beam 11;

the upper end of the shield frame 9 is rotatably connected with one end of a top beam 11; one ends of the connecting rods 8 are rotatably connected with the base 1, the other ends of the connecting rods 8 are rotatably connected with the lower end face of the shield frame 9, and the connecting rods 8 are distributed side by side; when the shield frame works, an included angle between the central axis of the connecting rod 8 and the central axis of the shield frame 9 is an obtuse angle; the shield frame 9 can prevent stones and the like falling from the supporting layer from falling onto the base 1 in the supporting process of the supporting layer by the top beam 11;

the plurality of buffer telescopic rods 10 are positioned in obtuse angle spaces formed by the plurality of connecting rods 8 and the shielding frame 9, one ends of the plurality of buffer telescopic rods 10 are rotatably connected with the shielding frame 9, and the other ends of the plurality of buffer telescopic rods 10 are respectively rotatably connected with the plurality of connecting rods 8; wherein, the buffer telescopic rods 10 correspond to the connecting rods 8 one by one; the connecting rod 8 and the shielding frame 9 are supported by the arranged buffering telescopic rod 10, the shielding frame 9 is prevented from shaking randomly, when stones and the like fall onto the shielding frame 9, the buffering telescopic rod 10 is extruded, the elastic force of the buffering telescopic rod 10 can buffer the vibration, and the shielding frame 9 is prevented from being damaged by heavy object impact;

the plurality of first jacks 2 are respectively positioned in the plurality of mounting grooves, and the fixed ends of the plurality of first jacks 2 respectively press the bottom surfaces of the plurality of mounting grooves, wherein the first jacks 2 correspond to the mounting grooves one by one, and the first jacks 2 are vertical to the base 1;

the supporting plates 3 are respectively arranged at the telescopic ends of the first jacks 2 one by one.

The utility model discloses in, during the use, move the support through universal wheel 5, after hydraulic support moved to the assigned position, through all being connected a plurality of hydraulic telescoping rod 7 with hydraulic system, through the simultaneous extension of hydraulic telescoping rod 7 of hydraulic system control in order to realize the rising of back timber 11, support supporting layer such as cliff or coal seam through back timber 11, along with the rising of back timber 11, the contained angle between shield frame 9 and connecting rod 8 increases gradually, buffering telescopic link 10 is stretched, the potential energy of storing one end in buffering telescopic link 10, when stone etc. drop to shield frame 9, extrude buffering telescopic link 10, the elastic force that buffering telescopic link 10 has can cushion vibrations, avoid the heavy object striking to cause the damage to shield frame 9; the hydraulic telescopic rods 7 are arranged on the buffer frame 6, and when the pressure of the supporting layer on the top beam 11 is overlarge, the hydraulic telescopic rods 7 are buffered through the arranged buffer frame 6, so that the hydraulic telescopic rods 7 are prevented from being damaged due to the overlarge pressure; through controlling the extension of a plurality of first jack 2 in order to drive backup pad 3 and ground and compress tightly to improve hydraulic support's stability, when base 1 took place the slope, through the extension length of adjusting a plurality of first jack 2 in order to adjust base 1 level, in order to guarantee the stability of support.

In an alternative embodiment, comprises a toe guard 12 and a plurality of second jacks 13;

one end of the side protection plate 12 is rotatably connected with the other end of the top beam 11; the fixed ends of the second jacks 13 are rotatably connected with the lower end face of the top beam 11, the telescopic ends of the second jacks 13 are rotatably connected with the lower end face of the side protection plate 12, and the second jacks 13 are distributed side by side.

In an alternative embodiment, the number of the mounting grooves is four; the four mounting grooves are respectively arranged at four right-angle sides of the lower end surface of the base 1.

In an alternative embodiment, a plurality of reinforcing rods 4 are included; the reinforcing rods 4 are respectively and uniformly vertically arranged on the lower end surface of the supporting plate 3, wherein the lower ends of the reinforcing rods 4 are conical; thereby insert the stability of ground through the stiffener 4 that sets up, the lower terminal surface of stiffener 4 establishes to the taper shape to conveniently insert the stiffener 4 ground.

In an alternative embodiment, the length of the reinforcing rod 4 is 2-5 cm.

In an alternative embodiment, the buffer frame 6 comprises a plurality of nuts 14, a plurality of threaded rods 15, a plurality of first telescopic rods 16, a plurality of first springs 17, a mounting plate 18, a plurality of second springs 21, a plurality of second telescopic rods 22, and an inverted L-shaped frame 23;

the inverted L-shaped frame 23 is positioned above the base 1, a space is reserved between the lower end face of the inverted L-shaped frame 23 and the base 1, the notch of the inverted L-shaped frame 23 faces the base 1, and the end face of the inverted L-shaped frame 23, which is far away from the base 1, is provided with a plurality of first through holes;

the plurality of threaded rods 15 respectively penetrate through the plurality of first through holes and the plurality of second through holes one by one, the plurality of threaded rods 15 are rotatably connected with the base 1, the plurality of nuts 14 are respectively in threaded fit connection with the plurality of threaded rods 15, and the plurality of nuts 14 respectively press the inverted L-shaped frame 23 towards the end face of the inverted L-shaped frame 23;

the plurality of first telescopic rods 16 are uniformly distributed side by side, one ends of the plurality of first telescopic rods 16 are connected with the inner end surface of the inverted L-shaped frame 23, the other ends of the plurality of first telescopic rods 16 are connected with the upper end surface of the mounting plate 18, the plurality of first springs 17 are respectively sleeved on the outer sides of the plurality of first telescopic rods 16 one by one, and the two ends of the plurality of first springs 17 are respectively connected with the mounting plate 18 and the inverted L-shaped frame 23;

the plurality of second telescopic rods 22 are uniformly distributed side by side, one ends of the plurality of second telescopic rods 22 are connected with the base 1, and the other ends of the plurality of second telescopic rods 22 are connected with the lower and upper end surfaces of the mounting plate 18; the plurality of second springs 21 are respectively sleeved outside the plurality of second telescopic rods 22 one by one, and two ends of the plurality of second springs 21 are respectively connected with the mounting plate 18 and the base 1;

by rotating the plurality of nuts 14, the distance between the inverted L-shaped frame 23 and the base 1 is adjusted, so that the compression amount of the plurality of first springs 17 and the plurality of second springs 21 can be adjusted, the elastic energy of the buffer frame 6 can be adjusted, and the use is convenient.

In an alternative embodiment, the device comprises a plurality of first sliding parts 19, wherein a plurality of vertical sliding grooves are arranged on the inner wall of the notch of the inverted L-shaped frame 23;

a plurality of first sliders 19 all set up on mounting panel 18, and a plurality of vertical spout of a plurality of cooperation sliding connection one by one respectively of a plurality of first sliders 19, mounting panel 18 moves up and down through a plurality of first sliders 19 along the direction of height of the frame 23 of falling L shape, improves mounting panel 18's stability.

In an alternative embodiment, each buffer telescopic rod 10 comprises a mounting cylinder 24, a third spring 25, a second slider 26, an elastic tension member 27 and a slide rod 28;

one end of the mounting cylinder 24 is rotatably connected with the connecting rod 8, and the other end of the mounting cylinder 24 is provided with a third through hole;

one end of a sliding rod 28 is rotatably connected with the shield frame 9, and the other end of the sliding rod 28 passes through the third through hole and is connected with a second sliding piece 26 which is arranged in the mounting cylinder 24 in a sliding manner;

the third spring 25 is positioned in the mounting cylinder 24, the third spring 25 is sleeved on the outer side of the sliding rod 28, and two ends of the third spring 25 are respectively connected with one end of the second sliding part 26 and the mounting cylinder 24;

an elastic stretching member 27 is located in the mounting tube 24, and one end of the elastic stretching member 27 connects the other end of the second sliding member 26 and the bottom surface of the mounting tube 24.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A hydraulic support is characterized by comprising a base (1), a plurality of first jacks (2), a plurality of supporting plates (3), hydraulic telescopic rods (7), a connecting rod (8), a shield frame (9), a buffer telescopic rod (10) and a top beam (11);

the lower end surface of the base (1) is provided with a plurality of universal wheels (5), the lower end surface of the base (1) is provided with a plurality of mounting grooves, and the base (1) is provided with a buffer frame (6) with a damping and buffering effect;

one ends of the hydraulic telescopic rods (7) are rotatably connected with the top beam (11), and the other ends of the hydraulic telescopic rods (7) are connected with the buffer frame (6);

the upper end of the shield frame (9) is rotatably connected with one end of a top beam (11); one ends of the connecting rods (8) are rotatably connected with the base (1), the other ends of the connecting rods (8) are rotatably connected with the lower end face of the shielding frame (9), and the connecting rods (8) are distributed side by side; when the shield frame works, an included angle between the central axis of the connecting rod (8) and the central axis of the shield frame (9) is an obtuse angle; the plurality of buffer telescopic rods (10) are positioned in obtuse angle spaces formed by the plurality of connecting rods (8) and the shield frame (9), one ends of the plurality of buffer telescopic rods (10) are rotatably connected with the shield frame (9), and the other ends of the plurality of buffer telescopic rods (10) are respectively rotatably connected with the plurality of connecting rods (8); wherein, the buffer telescopic rods (10) are in one-to-one correspondence with the connecting rods (8);

the plurality of first jacks (2) are respectively positioned in the plurality of mounting grooves, the fixed ends of the plurality of first jacks (2) respectively press the bottom surfaces of the plurality of mounting grooves, wherein the first jacks (2) correspond to the mounting grooves one by one, and the first jacks (2) are vertical to the base (1);

the supporting plates (3) are respectively arranged at the telescopic ends of the first jacks (2) one by one.

2. A hydraulic prop according to claim 1, characterized by comprising a toe guard (12) and a plurality of second jacks (13);

one end of the side protection plate (12) is rotatably connected with the other end of the top beam (11); the fixed ends of the second jacks (13) are rotatably connected with the lower end face of the top beam (11), the telescopic ends of the second jacks (13) are rotatably connected with the lower end face of the side protection plate (12), and the second jacks (13) are distributed side by side.

3. A hydraulic mount according to claim 1, wherein the number of mounting slots is four; the four mounting grooves are respectively arranged at four right-angle sides of the lower end surface of the base (1).

4. A hydraulic support according to claim 1, characterized by comprising a plurality of reinforcing bars (4); a plurality of stiffeners (4) are respectively and uniformly and vertically arranged on the lower end surface of the support plate (3), wherein the lower ends of the stiffeners (4) are conical.

5. A hydraulic support according to claim 4, characterised in that the reinforcing rods (4) are 2-5 cm in length.

6. A hydraulic prop according to claim 1, characterized in that the buffer carriage (6) comprises a plurality of nuts (14), a plurality of threaded rods (15), a plurality of first telescopic rods (16), a plurality of first springs (17), a mounting plate (18), a plurality of second springs (21), a plurality of second telescopic rods (22) and an inverted L-shaped carriage (23);

the inverted L-shaped frame (23) is positioned above the base (1), the notch of the inverted L-shaped frame (23) faces the base (1), the end face of the inverted L-shaped frame (23) far away from the base (1) is provided with a plurality of first through holes, and the mounting plate (18) is provided with a plurality of second through holes (20);

the plurality of threaded rods (15) respectively penetrate through the plurality of first through holes and the plurality of second through holes one by one, the plurality of threaded rods (15) are rotatably connected with the base (1), the plurality of nuts (14) are respectively in threaded fit with the plurality of threaded rods (15), and the plurality of nuts (14) respectively press the inverted L-shaped frame (23) towards the end face of the inverted L-shaped frame (23);

the plurality of first telescopic rods (16) are uniformly distributed side by side, one ends of the plurality of first telescopic rods (16) are connected with the inner end face of the inverted L-shaped frame (23), the other ends of the plurality of first telescopic rods (16) are connected with the upper end face of the mounting plate (18), the plurality of first springs (17) are respectively sleeved on the outer sides of the plurality of first telescopic rods (16) one by one, and the two ends of the plurality of first springs (17) are respectively connected with the mounting plate (18) and the inverted L-shaped frame (23);

the second telescopic rods (22) are uniformly distributed side by side, one ends of the second telescopic rods (22) are connected with the base (1), and the other ends of the second telescopic rods (22) are connected with the lower upper end face of the mounting plate (18); the plurality of second springs (21) are respectively sleeved on the outer sides of the plurality of second telescopic rods (22) one by one, and two ends of the plurality of second springs (21) are respectively connected with the mounting plate (18) and the base (1).

7. A hydraulic support according to claim 6, characterized in that it comprises a plurality of first sliding elements (19), wherein a plurality of vertical sliding grooves are arranged on the inner wall of the notch of the inverted L-shaped frame (23);

a plurality of first sliders (19) are arranged on the mounting plate (18), and the first sliders (19) are respectively matched with the vertical sliding grooves in a one-to-one sliding mode.

8. A hydraulic prop according to claim 1, characterized in that each shock-absorbing telescopic rod (10) comprises a mounting cylinder (24), a third spring (25), a second slider (26), an elastic tension member (27) and a sliding rod (28);

one end of the mounting cylinder (24) is rotatably connected with the connecting rod (8), and the other end of the mounting cylinder (24) is provided with a third through hole;

one end of the sliding rod (28) is rotatably connected with the shield frame (9), and the other end of the sliding rod (28) passes through the third through hole and is connected with a second sliding part (26) which is arranged in the mounting cylinder (24) in a sliding manner;

the third spring (25) is positioned in the mounting cylinder (24), the third spring (25) is sleeved on the outer side of the sliding rod (28), and two ends of the third spring (25) are respectively connected with one end of the second sliding piece (26) and the mounting cylinder (24);

an elastic stretching piece (27) is positioned in the mounting cylinder (24), and one end of the elastic stretching piece (27) is connected with the other end of the second sliding piece (26) and the bottom surface of the mounting cylinder (24).