CN220185147U - Bottom lifting device of mining hydraulic support - Google Patents

Abstract

The utility model discloses a bottom lifting device of a mining hydraulic support, which comprises a bottom frame and a frame, wherein the frame is connected to the bottom frame in a rotating way, a fixing structure is arranged on the bottom frame and the frame, and the fixing structure comprises: the fixing frame is fixed in the frame, the side grooves are formed in two opposite end faces of the frame, the clamping portions are arranged on the fixing frame and the movable frame, and the limiting portions are arranged on the underframe and the frame. The utility model can adjust the interval between the clamping plates according to the size of the equipment, can firmly clamp the equipment at the middle position, has simple and convenient adjustment mode and simple operation, and the whole frame can rotate by 90 degrees at the joint, is in a horizontal state after rotating, can carry out processing operations in different modes, and has good practical effect.

Description

Bottom lifting device of mining hydraulic support

Technical Field

The utility model relates to the technical field of supporting devices, in particular to a bottom lifting device of a mining hydraulic support.

Background

In the underground production process of the coal mine, the pressure of the deep mining working face is very large, a roadway bottom plate on the working face tends to bulge, a roadway wall falls off, an upper roadway space is reduced, materials are difficult to convey, the material is not expanded again, a hydraulic support is adopted to serve as a temporary supporting structure, the hydraulic support is mainly composed of a metal support body and a hydraulic cylinder, the hydraulic support is relatively heavy, lifting and angle adjustment are needed to be achieved by means of some devices, and the device capable of achieving stability and adjustment in the hydraulic support is also needed due to limited or complex space of a channel.

Disclosure of Invention

In order to achieve the aim, the utility model adopts the technical scheme that the utility model provides a bottom lifting device of a mining hydraulic support, which comprises a bottom frame and a frame, wherein the frame is connected to the bottom frame in a rotating way, and fixing structures are arranged on the bottom frame and the frame;

the fixed knot constructs, includes: the device comprises a fixed frame, a side groove, a round rod, a movable frame, a fixed bolt, a clamping part and a limiting part;

the fixing frame is fixed in the frame, the side grooves are formed in two opposite end faces of the frame, the round rods are fixed in the side grooves, the movable frame is movably sleeved on the round rods, the fixing bolts are screwed and connected to two opposite ends of the fixing frame, the clamping parts are arranged on the fixing frame and the movable frame, and the limiting parts are arranged on the underframe and the frame.

Still further, the clamping portion includes: long holes, cross bars, sliding frames, transmission gears, rack bars and clamping plates;

the long hole is formed in the fixing frame and the movable frame, the cross rod is fixed in the long hole, the movable frame is movably sleeved on the cross rod, the transmission gear is arranged on the fixing frame and the movable frame, the rack bar is fixed on the movable frame and meshed with the transmission gear, and the clamping plate is fixed on the end face of the movable frame.

Still further, the limit part includes: a limit groove, a swing frame and a spring;

the limiting groove is formed in the bottom surface and the front surface of the frame, the swing frame is movably sleeved in the bottom frame, the upper end of the swing frame is inserted in the limiting groove, and the spring is sleeved on the swing frame.

Preferably, the clamping plate is of an overall transverse L-shaped structure.

Preferably, the maximum rotation angle of the frame through the connection is 90 °.

Compared with the prior art, the clamping device has the advantages and positive effects that the distance between the clamping plates can be adjusted according to the size of the equipment, the equipment can be firmly clamped at the middle position, the adjusting mode is simple and convenient, the operation is simple, the whole frame can rotate by 90 degrees through the connecting part, the frame is in a horizontal state after rotating, the processing operation in different modes can be performed, and the clamping device has good practical effects.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic structural view of a bottom lifting device of a mining hydraulic support provided in this embodiment;

fig. 2 is a partial enlarged view of a movable frame part of a mining hydraulic support bottom lifting device provided by the embodiment;

fig. 3 is a partial enlarged view of a rack bar portion of a bottom lifting device of a mining hydraulic support provided in this embodiment;

the figure shows: 1. a chassis; 2. a frame; 3. a fixing frame; 4. a side groove; 5. a round bar; 6. a movable frame; 7. a fixing bolt; 8. a long hole; 9. a cross bar; 10. a carriage; 11. a transmission gear; 12. a rack bar; 13. a clamping plate; 14. a limit groove; 15. a movable frame; 16. and (3) a spring.

Detailed Description

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

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

The embodiment can be seen from the accompanying drawings 1-3 of the specification, the bottom lifting device of the mining hydraulic support comprises a bottom frame 1 and a frame 2, wherein the frame 2 is connected to the bottom frame 1 in a rotating way, and fixing structures are arranged on the bottom frame 1 and the frame 2;

the fixed knot constructs, includes: the device comprises a fixed frame 3, a side groove 4, a round rod 5, a movable frame 6, a fixed bolt 7, a clamping part and a limiting part;

the fixing frame 3 is fixed in the frame 2, the side grooves 4 are formed in two opposite end faces of the frame 2, the round rods 5 are fixed in the side grooves 4, the movable frames 6 are movably sleeved and connected to the round rods 5, the fixing bolts 7 are screwed and connected to two opposite ends of the fixing frame 3, the clamping parts are arranged on the fixing frame 3 and the movable frames 6, and the limiting parts are arranged on the underframe 1 and the frame 2.

The clamping part comprises: long hole 8, cross bar 9, carriage 10, transmission gear 11, rack bar 12 and clamping plate 13;

the long hole 8 is formed in the fixed frame 3 and the movable frame 6, the cross rod 9 is fixed in the long hole 8, the sliding frame 10 is movably sleeved on the cross rod 9, the transmission gear 11 is arranged on the fixed frame 3 and the movable frame 6, the rack bar 12 is fixed on the sliding frame 10 and meshed with the transmission gear 11, and the clamping plate 13 is fixed on the end face of the sliding frame 10.

The limit part comprises: a limit groove 14, a swing frame 15 and a spring 16;

the limiting groove 14 is formed in the bottom surface and the front surface of the frame 2, the swing frame 15 is movably sleeved in the bottom frame 1, the upper end of the swing frame is inserted in the limiting groove 14, and the spring 16 is sleeved on the swing frame 15.

From the above, it can be seen that: the clamping plate 13 has an overall transverse L-shaped structure.

From the above, it can be seen that: the maximum rotation angle of the frame 2 through the connection is 90 degrees.

It should be pointed out that, in the specific implementation process, the equipment is placed between the clamping plates 13, then the movable frame 6 slides on the round rod 5 to adjust the height and is fixed through the fixing bolt 7, the transmission gear 11 is screwed to drive the rack rod 12 according to the width of the equipment, so that the clamping plates 13 clamp and fix the equipment, the frame 2 can rotate by 90 degrees through the rotating connection part, and the frame is vertically rotated to be in a horizontal state, thereby facilitating the operation.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (5)

1. The bottom lifting device of the mining hydraulic support comprises a bottom frame (1) and a frame (2), wherein the frame (2) is connected to the bottom frame (1) through rotation, and the bottom lifting device is characterized in that a fixing structure is arranged on the bottom frame (1) and the frame (2);

the fixed knot constructs, includes: the device comprises a fixed frame (3), side grooves (4), round rods (5), a movable frame (6), fixed bolts (7), clamping parts and limiting parts;

the fixing frame (3) is fixed in the frame (2), the side grooves (4) are formed in two opposite end faces of the frame (2), the round rods (5) are fixed in the side grooves (4), the movable frames (6) are movably sleeved and connected onto the round rods (5), the fixing bolts (7) are screwed and connected onto two opposite ends of the fixing frame (3), the clamping portions are arranged on the fixing frame (3) and the movable frames (6), and the limiting portions are arranged on the underframe (1) and the frame (2).

2. The mining hydraulic support bottom lifting device according to claim 1, wherein the clamping portion comprises: a long hole (8), a cross bar (9), a sliding frame (10), a transmission gear (11), a rack bar (12) and a clamping plate (13);

slot hole (8) are opened mount (3) with in movable frame (6), horizontal pole (9) are fixed in slot hole (8), carriage (10) movable sleeve connects on horizontal pole (9), drive gear (11) are installed mount (3) and on movable frame (6), rack bar (12) are fixed on carriage (10) and with drive gear (11) are engaged with, splint (13) are fixed carriage (10) terminal surface.

3. The mining hydraulic support bottom lifting device according to claim 1, wherein the limiting portion comprises: a limit groove (14), a swinging frame (15) and a spring (16);

the limiting groove (14) is formed in the bottom surface and the front surface of the frame (2), the swing frame (15) is movably sleeved and connected in the underframe (1), the upper end of the swing frame is inserted and mounted in the limiting groove (14), and the spring (16) is sleeved on the swing frame (15).

4. A mining hydraulic support bottom lifting device according to claim 2, characterized in that the clamping plates (13) are of an overall transverse L-shaped structure.

5. A mining hydraulic support lifting device according to claim 1, characterized in that the maximum rotation angle of the frame (2) through the connection is 90 °.