CN216284605U

CN216284605U - Single hydraulic prop test device

Info

Publication number: CN216284605U
Application number: CN202122499721.XU
Authority: CN
Inventors: 薛美荣; 温荣升
Original assignee: Xuzhou Tianneng Electrical Mechanical Co ltd
Current assignee: Xuzhou Tianneng Electrical Mechanical Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-04-12
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a single hydraulic prop test device which comprises a middle beam, wherein four symmetrical round holes are formed in the four corners of the upper surface of the middle beam, a first shaft penetrates through the inside of each round hole, a loading cylinder fixing beam is installed at one end of each first shaft, a first beam is installed at the other end of each first shaft, a first loading cylinder is arranged above the middle beam, and the first loading cylinder is installed inside the loading cylinder fixing beam; in order to reduce the length of the whole machine, the hydraulic cylinder adopts double telescopic upright columns, and a method that a piston rod of the first double telescopic upright column can be stopped and fixed at any position in a stroke by utilizing the principle of the first double telescopic upright column and a bidirectional hydraulic lock is utilized, so that the problem that the test height of a single hydraulic prop test device is adjusted at will in the stroke is solved.

Description

Single hydraulic prop test device

Technical Field

The utility model relates to the technical field of coal mine supporting equipment, in particular to a single hydraulic prop test device.

Background

The single hydraulic prop is necessary equipment for supporting the working face and the roadway of the underground coal mine. Coal miners work in the supporting space, and the safety performance requirement is high. According to the standard type inspection requirements of MT112.1-2006 mining single hydraulic prop industry: the axial center loading and the axial same-side eccentric loading of the single hydraulic prop at the maximum height are qualified products only when meeting the standard requirements, and the single hydraulic prop can be used underground in a coal mine.

The height specification of the single hydraulic prop is 17 standard specifications from 0.6 meter, 0.8 meter, 1.0 meter, 1.2 meter up to 4.5 meters, and also some specifications with non-standard heights. If the piston is not at the maximum height during the test, the piston is lengthened, and the strength at the maximum height cannot be accurately reflected.

The test height adjustment of the existing various single hydraulic prop test devices is a method for moving a stop block, the moving interval of the stop block is about 200-300 mm, arbitrary adjustment in the stroke cannot be realized, and great inconvenience is brought in use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a single hydraulic prop test device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a single hydraulic prop test device comprises a middle beam, wherein four symmetrical round holes are formed in the four corners of the upper surface of the middle beam, a first shaft penetrates through the inside of each round hole, a loading cylinder fixing beam is installed at one end of each first shaft, a first beam is installed at the other end of each first shaft, a first loading cylinder is arranged above the middle beam and installed inside the loading cylinder fixing beam, a flange plate of the first loading cylinder is fixedly connected to the lower surface of the loading cylinder fixing beam through a bolt, and a piston rod of the first loading cylinder is provided with a loading pile head;

the utility model discloses a two telescopic upright post heads of fixed mounting of centre sill, including two telescopic upright post heads, middle beam, two telescopic upright post heads, two-way hydraulic lock, two telescopic upright post heads, two telescopic upright posts, two telescopic post heads, two telescopic post heads, two.

As further preferable in the present technical solution: the two ends of the four first shafts are in threaded connection with locking nuts and first nuts, the four locking nuts and the four first nuts are located above the loading cylinder fixing beam, and the other four locking nuts and the other four first nuts are located below the first beam.

As further preferable in the present technical solution: the internally mounted of round hole has the uide bushing, the both ends symmetry integrated into one piece of uide bushing has two to lead to the lid, lead to the upper surface of lid with the lower surface pass through countersunk screw with intermediate beam fixed connection.

Compared with the prior art, the utility model has the beneficial effects that: in order to reduce the length of the whole machine, the hydraulic cylinder adopts double telescopic upright columns, and a method that a piston rod of the first double telescopic upright column can be stopped and fixed at any position in a stroke by utilizing the principle of the first double telescopic upright column and a bidirectional hydraulic lock is utilized, so that the problem that the test height of a single hydraulic prop test device is adjusted at will in the stroke is solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of the connection structure of the bidirectional hydraulic lock and the first double telescopic upright post of the utility model.

As shown in the figure: 1. locking the nut; 2. a first nut; 3. a loading cylinder fixed beam; 4. a first shaft; 5. a bolt; 6. a first loading cylinder; 7. loading a pile head; 8. a test pillar base fixing seat; 9. a center sill; 10. passing through the cover; 11. a guide sleeve; 12. Countersunk head screws; 13. a double-telescopic upright column head fixing seat; 14. a first pin shaft; 15. a bidirectional hydraulic lock; 16. a first double telescopic column; 17. a second pin shaft; 18. a double-telescopic upright column base fixing seat; 19. a first beam.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "one end", "the other end", "both sides", "both ends", and the like herein indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of 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.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "disposed," "connected," and the like are used in a broad sense, and for example, "connected" may be fixedly connected, detachably connected, integrally connected, mechanically connected, or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, the present invention provides a technical solution: a single hydraulic prop test device comprises a middle beam 9, four symmetrical round holes are formed in the four corners of the upper surface of the middle beam 9, a first shaft 4 penetrates through the inside of each round hole, a loading cylinder fixing beam 3 is installed at one end of each first shaft 4, a first beam 19 is installed at the other end of each first shaft 4, a first loading cylinder 6 is arranged above the middle beam 9, the first loading cylinder 6 is installed inside the loading cylinder fixing beam 3, a flange plate of the first loading cylinder 6 is fixedly connected to the lower surface of the loading cylinder fixing beam 3 through a bolt 5, and a loading pile head 7 is installed on a piston rod of the first loading cylinder 6;

two flexible stand column head fixing base 13 of inside fixedly connected with of centre sill 9, the last surface mounting of two flexible stand column head fixing base 13 has experimental pillar base fixing base 8, the last fixed surface of first roof beam 19 is connected with two flexible stand column base fixing base 18, the below of centre sill 9 is equipped with first pair flexible stand 16, two-way hydraulic lock 15 is installed in the outside of first pair flexible stand column 16, the top of two flexible stand column base fixing base 18 is articulated through second round pin axle 17 with the bottom of first pair flexible stand column 16, the piston rod of first pair flexible stand column 16 is articulated through first round pin axle 14 with the bottom of two flexible stand column head fixing base 13.

In this embodiment, specifically: two ends of the four first shafts 4 are in threaded connection with locking nuts 1 and first nuts 2, the four locking nuts 1 and the four first nuts 2 are located above the loading cylinder fixing beam 3, and the other four locking nuts 1 and the other four first nuts 2 are located below the first beam 19; the provision of the locking nut 1 and the first nut 2 facilitates assembly of the device.

In this embodiment, specifically: a guide sleeve 11 is arranged inside the round hole, two through covers 10 are symmetrically and integrally formed at two ends of the guide sleeve 11, and the upper surface and the lower surface of each through cover 10 are fixedly connected with the middle beam 9 through countersunk screws 12; the guide sleeve 11 is arranged to reduce resistance and friction during movement, and the through cover 10 and the countersunk head screw 12 are arranged to connect the guide sleeve 11 with the intermediate beam 9.

The working principle of the utility model is as follows: the utility model is composed of a locking nut 1, a first nut 2, a loading cylinder fixing beam 3, a first shaft 4, a middle beam 9 and a first beam 19 to form a closed bearing frame, wherein the first loading cylinder 6 and a loading pile head 7 simulate external pressure, and when in work, the loading pile head 7 is used on the test pillar, the test pillar is fixed on the upper surface of the test pillar base fixing seat 8, the bidirectional hydraulic lock 15 installed on the first double-telescopic stand column 16 and the middle beam 9 play a role in adjusting the test stroke, the piston rod of the first double-telescopic stand column 16 pushes the double-telescopic stand column head fixing seat 13 to move, the double-telescopic stand column head fixing seat 13 drives the middle beam 9 to slide on the outer side wall of the first shaft 4 on one hand, the through cover 10 can reduce resistance and friction during movement, on the other hand, the double-telescopic stand column head fixing seat 13 pushes the test pillar base fixing seat 8 and the test pillar to move, and further the test height of the single hydraulic pillar test device is adjusted randomly in the stroke.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a hydraulic prop test device, includes centre sill (9), its characterized in that: four symmetrical round holes are formed in the four corners of the upper surface of the middle beam (9), a first shaft (4) penetrates through the round holes, a loading cylinder fixing beam (3) is installed at one end of each of the four first shafts (4), a first beam (19) is installed at the other end of each of the four first shafts (4), a first loading cylinder (6) is arranged above the middle beam (9), the first loading cylinder (6) is installed inside the loading cylinder fixing beam (3), a flange plate of the first loading cylinder (6) is fixedly connected to the lower surface of the loading cylinder fixing beam (3) through a bolt (5), and a loading pile head (7) is installed on a piston rod of the first loading cylinder (6);

the utility model discloses a two telescopic upright post heads of fixed connection of inside of intermediate beam (9) are fixed base (13), the last surface mounting of two telescopic upright post head fixed base (13) has experimental pillar base fixing base (8), the last fixed surface of first roof beam (19) is connected with two telescopic upright post base fixing base (18), the below of intermediate beam (9) is equipped with first two telescopic upright post (16), two-way hydraulic lock (15) are installed in the outside of first two telescopic upright post (16), the top of two telescopic upright post base fixing base (18) with the bottom of first two telescopic upright post (16) is articulated through second round pin axle (17), the piston rod of first two telescopic upright post (16) with the bottom of two telescopic upright post head fixing base (13) is articulated through first round pin axle (14).

2. The monoblock hydraulic prop test apparatus of claim 1, wherein: the two ends of the four first shafts (4) are in threaded connection with locking nuts (1) and first nuts (2), the four locking nuts (1) and the four first nuts (2) are located above the loading cylinder fixing beam (3), and the other four locking nuts (1) and the other four first nuts (2) are located below the first beam (19).

3. The monoblock hydraulic prop test apparatus of claim 1, wherein: the internally mounted of round hole has uide bushing (11), the both ends symmetry integrated into one piece of uide bushing (11) has two to lead to lid (10), lead to the upper surface and the lower surface of lid (10) pass through countersunk screw (12) with intermediate beam (9) fixed connection.