CN203702208U

CN203702208U - End hydraulic support lifting seat

Info

Publication number: CN203702208U
Application number: CN201320746953.3U
Authority: CN
Inventors: 周邦远; 李强; 王丽; 陈飞; 卓军
Original assignee: JIAHUA MACHINERY Co Ltd OF SICHUAN HUAYING MOUNTAIN GUANGNENG GROUP
Current assignee: JIAHUA MACHINERY Co Ltd OF SICHUAN HUAYING MOUNTAIN GUANGNENG GROUP
Priority date: 2013-08-21
Filing date: 2013-11-25
Publication date: 2014-07-09
Anticipated expiration: 2023-11-25

Abstract

The utility model discloses an end hydraulic support lifting seat which mainly comprises fixing seats, limiting raised heads, primary boxes, primary limiting raised heads, primary stroke clamping heads, secondary boxes, secondary stroke clamping heads, hinging heads, support lifting jacks and a top beam, wherein the primary boxes are mounted in the inner cavities of the fixing seats in a sleeving way; the secondary boxes are mounted in the inner cavities of the primary boxes in a sleeving way; the support lifting jacks move upwards; when the bodies of the secondary boxes are almost pulled out in the length direction, the primary boxes are driven to move upwards through connection of the primary limiting raised heads and the secondary stroke clamping heads in an overlapped manner; when support descending is performed, under the action of self gravity, the primary boxes retract to the inner cavities of the fixing seats gradually, and when the bottom ends of the primary boxes are in contact with the bottom ends of the fixing seats to stop moving, the secondary boxes and the primary boxes perform relative movements, and the secondary boxes retract to the inner cavities of the primary boxes gradually.

Description

A kind of end hydraulic support elevating bracket

Technical field

The utility model relates to support apparatus in coal mine, specially refers to a kind of end hydraulic support elevating bracket.

Background technology

End hydraulic support is in high-dipping coal-face end support, bringing into play extremely important effect, sound assurance production safety under coal mine, in process of production, under some coal-face, export space supporting height large, need the end hydraulic support of high support capacity, could meet the requirement of supporting, and in existing end hydraulic support, there is the frame type of high support capacity, its volume is often larger, the height of supporting is higher, the build of end hydraulic support is larger, and the larger end hydraulic support of volume, be subject to the impact of down-hole small space, in mine, transport is more difficult, even in transportation, end hydraulic support need to be disassembled into parts transport, arrive assembling use again behind destination, this end hydraulic support service efficiency is low, labour intensity is large, be unfavorable for carrying out on ground complete machine inspection, and easily there was a mechanical failure, therefore designing a kind of Novel end hydraulic support elevating bracket is the only way of colliery development fully-mechanized mining.

Summary of the invention

The purpose of this utility model is for existing deficiency, and a kind of end hydraulic support elevating bracket is provided, and can realize end hydraulic support in ground overall test, can meet the end support of high spatial, again can be in coal mine roadway flexibly, transport easily.

The technical solution of the utility model is achieved in that a kind of end hydraulic support elevating bracket, mainly comprise holder, spacing plush copper, one-level case, the spacing plush copper of one-level, one-level stroke dop, secondary case, secondary stroke dop, articulated joint, support jack, back timber, column, base, holder and base rear end are affixed, one-level housing-case is contained in holder inner chamber, secondary housing-case is contained in one-level box cavity, articulated joint and the back timber of one-level case upper end are hinged, respectively there is a holder support jack both sides, holder upper end limited location plush copper, there is the spacing plush copper of one-level one-level case upper end, there is one-level stroke dop lower end, there is secondary stroke dop secondary case lower end, the affixed articulated joint in upper end, one-level case, the profile of secondary case and inner chamber are positive rectangular structure.

A kind of end hydraulic support elevating bracket that the utility model provides, support jack and back timber on base are hinged, support jack coordinates column, realize the rise and fall of back timber, can also adjust the angle of back timber simultaneously, so that back timber adapts to the angle of inclination of top board preferably, articulated joint on the holder secondary case of both sides is hinged with back timber respectively, the inner chamber of holder is positive rectangular structure, one-level case on holder, the profile of secondary case and inner chamber are positive rectangular structure, after stressed to back timber, front and back, the movement of left and right has good effect of contraction, when termination needs supporting, support jack moves upward, pull secondary case to move upward by articulated joint, in this process, according to the needs of roof timbering, support jack can stop moving upward at any time, in the time that support jack constantly moves upward, secondary casing constantly pulls out from one-level box cavity, when secondary casing length is pulled soon, because its lower end secondary stroke dop and the spacing plush copper of one-level are conflicted mutually, limit the relative motion of one-level case in secondary box cavity, in case one-level case comes off out from secondary box cavity, by the spacing plush copper of one-level and secondary stroke dop overlap joint, the support jack that continues to move upward, drive one-level case to move upward, now one-level case and holder are done relative motion, in this process, according to the needs of roof timbering, support jack can stop moving upward at any time, along with support jack ceaselessly moves upward, the length of one-level case in holder inner chamber is pulled gradually, in the time that the one-level stroke dop on one-level case is conflicted spacing plush copper on holder, due to the barrier effect of spacing plush copper, one-level case can not upwards be paid again, now support jack has stopped moving upward, end hydraulic support reaches the highest supporting height, while falling frame, support jack moves downward, one-level case is under the effect of self gravitation, with holder generation relative motion, gradually in indentation holder inner chamber, when one-level case bottom contact with holder bottom slack after, secondary case and one-level case generation relative motion, in the box cavity of indentation one-level gradually, after secondary case bottom contacts with one-level case bottom, end hydraulic support drops to minimum altitude.

The beneficial effects of the utility model are: a kind of end hydraulic support elevating bracket providing, there is two-stage stretching ability, can the higher space of supporting, and in roadway convenient transportation, effectively reduce workman's labour intensity and enhance productivity.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model

Fig. 2 is the utility model understructure schematic diagram.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail, as shown in Figure 1: a kind of end hydraulic support elevating bracket, comprises holder 1, spacing plush copper 2, one-level case 3, the spacing plush copper 4 of one-level, one-level stroke dop 5, secondary case 6, secondary stroke dop 7, articulated joint 8, support jack 9, back timber 10, column 11, base 12.

Described a kind of end hydraulic support elevating bracket, as Fig. 1, shown in Fig. 2, holder 1 inner chamber is bottom side length (435x435) mm, height is the positive cuboid of 1124mm, spacing plush copper 2 internal diameters are 415mm, height is 130mm, one-level case 3 profiles are bottom side length (407x407) mm, the positive cuboid of high 1340mm, inner chamber is bottom side length (357x357) mm, height is the positive cuboid of 1310mm, one-level stroke dop 5 external diameters are 427mm, height is 110mm, spacing plush copper 4 internal diameters of one-level are 335mm, height is 130mm, secondary case 6 profiles are bottom side length (329x329) mm, the positive cuboid of high 1104mm, inner chamber is bottom side length (279x279) mm, height is the positive cuboid of 1053mm, secondary stroke dop 7 external diameters are 349mm, height is 110mm, it is that 279mm thickness is the square iron plate welding capping of 20mm that secondary case 6 upper end open adopt the length of side, then affixed articulated joint 8 on iron plate, holder 1 is fixed on base 12 rear ends of support jack 9 both sides, left and right structure is identical, one-level case 3 is sleeved in holder 1 inner chamber, secondary case 6 is sleeved in one-level case 3 inner chambers, articulated joint 8 is hinged with back timber 10, the elevating bracket forming is to back timber 10 front and back, the stressed mobile good constraint that forms in left and right, to improving end hydraulic support entirety force-bearing situation, play obvious effect, the maximum height reaching in the time that elevating bracket stretches out is completely 3500mm, minimum altitude while retraction is completely 1600mm, whole end hydraulic support magnification is large, Mine Complicated environment is had to very strong adaptive capacity.

Claims

1. an end hydraulic support elevating bracket, mainly comprise holder (1), spacing plush copper (2), one-level case (3), the spacing plush copper of one-level (4), one-level stroke dop (5), secondary case (6), secondary stroke dop (7), articulated joint (8), support jack (9), back timber (10), column (11), base (12), it is characterized in that: holder (1) is affixed with base (12) rear end, one-level case (3) is sleeved in holder (1) inner chamber, secondary case (6) is sleeved in one-level case (3) inner chamber, the articulated joint (8) of one-level case (3) upper end is hinged with back timber (10), holder (1) upper end limited location plush copper (2), there is the spacing plush copper of one-level (4) one-level case (3) upper end, there is one-level stroke dop (5) lower end, there is secondary stroke dop (7) secondary case (6) lower end, the affixed articulated joint in upper end (8).

2. a kind of end hydraulic support elevating bracket according to claim 1, is characterized in that: respectively there is a holder (1) support jack (9) both sides.

3. a kind of end hydraulic support elevating bracket according to claim 1, is characterized in that: profile and the inner chamber of one-level case (3), secondary case (6) are positive rectangular structure.