Multi-angle elastic lifting mechanism

Abstract

A multi-angle elastic lifting mechanism comprises two bases arranged side by side, each base is provided with a vertically-arranged guide sleeve, an inner guide column is installed in each guide sleeve in a matched mode, and the inner guide columns can vertically ascend and descend along the guide sleeves. The lifting device has the advantages that the guide sleeve and the inner guide column which are matched with each other are installed between the base and the top beam, the guide sleeve is made of elastic materials, the inner guide column is driven by the lifting oil cylinder which is connected in a hinged mode to ascend and descend in the guide sleeve, and inclined ascending and descending of different angles between the top beam and the base are achieved. The top beam provided with the anchor drilling machines can generate angle inclination relative to the base and the machine body, the anchor drilling machines on the two sides can conduct drilling anchor supporting at different height positions in a roadway, the overall structure can generate beneficial deformation under the action of external force, mechanical interference during angle inclination is avoided, meanwhile, the overall frame structure also improves the strength of the lifting mechanism, and the service life of the lifting mechanism is prolonged. And normal operation of equipment in a roadway is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tunneling equipment, in particular to a multi-angle elastic lifting mechanism. Background Art

[0002] At present, the anchor-digging machines used in coal mines and tunnels have the ability to dig and bolt support. For digging operations in wider tunnels, gantry anchor-digging machines are generally used. The gantry anchor-digging machine is a machine body that is installed with a gantry that can be lifted vertically at the upper side of the cutting head, and multiple anchor drills are installed on both sides of the gantry to achieve drilling and bolt support at multiple positions in the wider tunnel. If the anchor drills on both sides of the gantry need to drill and anchor support at different heights in the tunnel, the gantry will tilt at a certain angle relative to the machine body during the lifting process. The lifting structure on the existing gantry can only complete simple vertical lifting and lowering, and cannot make the gantry tilt at an angle relative to the machine body. When the lifting heights of the anchor drills on both sides are inconsistent, the gantry and the machine body will interfere with each other or even cause structural damage, affecting the normal support operations in the tunnel. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-angle elastic lifting mechanism, which can make the top beam tilt at different angles relative to the base according to actual use conditions, thereby solving the problems in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a multi-angle elastic lifting mechanism, including two bases arranged side by side, each base is equipped with a vertically arranged guide sleeve, an inner guide column is installed in the guide sleeve, the inner guide column can be lifted vertically along the guide sleeve, the upper ends of the inner guide columns on both sides are hingedly installed with the same top beam, and lifting cylinders are installed on both sides of each base, the lifting cylinders are hingedly installed between the base and the top beam, wherein the guide sleeve is made of elastic material, each lifting cylinder can independently control the extension and retraction, and the piston rod of the lifting cylinder can drive the top beam to be lifted horizontally or tilted relative to the base when extending and retracting. The guide sleeve comprises outer guide plates arranged side by side, and two outer guide plates are provided with corresponding through holes on both sides in the length direction. The outer guide plates are made of elastic material, wherein a partition is installed at the through hole at the upper position, a spacer is installed at the through hole at the middle position, and a solid shaft is installed at the through hole at the bottom position, and the solid shaft is located in the base. The partition is provided with holes connected to the through holes, and the corresponding holes and through holes, and the spacer and through holes are provided with connecting bolts in cooperation, and the inner guide column is located in the space formed by the outer guide plates and the partition. The bottom of the guide sleeve is provided with a first shaft sleeve arranged side by side, and the base is provided with a first connecting shaft matched with the first shaft sleeve, and the bottom of the inner guide column is provided with a slot matched with the first shaft sleeve. The inner guide column comprises side plates arranged side by side, and two side plates are provided with vertical plates on both sides in the length direction, and a sealing plate is installed at the bottom between the side plates, and a long slot is provided on the side plate, and a guide shaft matched with the long slot is provided in the guide sleeve, and the outer sides of the side plates and the vertical plates are connected with welding copper strips. A second sleeve is installed on the top of the inner guide column, and a second connecting shaft is installed on the top beam, wherein the diameter of the second sleeve is larger than the diameter of the second connecting shaft, an elliptical groove is opened on the inner guide column corresponding to the position of the second sleeve, and the second connecting shaft is located in the elliptical groove and the second sleeve. A first earring is installed at the bottom of the cylinder barrel of the lifting cylinder, a third connecting shaft is provided on the base, the first earring is installed on the third connecting shaft through a first joint bearing, a second earring is installed at the end of the piston rod of the lifting cylinder, a fourth connecting shaft is provided on the top beam, and the second earring is installed on the fourth connecting shaft through a second joint bearing. The guide sleeve is made of spring steel plate.

[0005] The positive effect of the utility model is that a multi-angle elastic lifting mechanism described in the utility model is equipped with a matching guide sleeve and an inner guide column between the base and the top beam, the guide sleeve is made of elastic material, and the inner guide column is driven to move up and down in the guide sleeve through a hinged lifting cylinder to achieve tilting and lifting at different angles between the top beam and the base, so that the top beam equipped with the anchor drill can be tilted relative to the base and the body, and the anchor drills on both sides can perform drilling and anchoring support at different heights in the tunnel, and the overall structure can produce beneficial deformation under the action of external force to avoid mechanical interference during angle tilt. At the same time, the overall frame structure also improves the strength of the lifting mechanism to ensure the normal operation of the equipment in the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0007] Figure 2 It is a side view of the utility model;

[0008] Figure 3 yes Figure 2 A top view of

[0009] Figure 4 It is a schematic diagram of the structure of the guide sleeve;

[0010] Figure 5 It is a schematic diagram of the structure of the inner guide column;

[0011] Figure 6 yes Figure 2 An enlarged view of the AA section view;

[0012] Figure 7 yes Figure 3 An enlarged view of the BB section view;

[0013] Figure 8 yes Figure 2 An enlarged view of the CC section view;

[0014] Fig. 9 yes Figure 3 Enlarged view of the DD section view. DETAILED DESCRIPTION

[0015] The multi-angle elastic lifting mechanism described in the utility model is as follows: Figure 1-3 As shown, it includes two bases 1 arranged side by side, each base 1 is installed with a vertically arranged guide sleeve 2, the guide sleeve 2 is cooperated with an inner guide column 3, the inner guide column 3 can be vertically lifted and lowered along the guide sleeve 2, and the upper ends of the inner guide columns 3 on both sides are hingedly installed with the same top beam 4, wherein the base 1 is installed on the main body of the anchor drilling machine equipment, and a plurality of anchor drills for drilling and anchoring are installed on the top beam 4, and the vertical lifting and lowering of the anchor drill on the top beam 4 relative to the main body of the anchor drilling machine equipment is realized through the relative lifting and lowering movement of the inner guide column 3 in the guide sleeve 2.

[0016] In order to realize the vertical movement drive of the top beam 4 relative to the base 1, a lifting cylinder 5 is installed on both sides of each base 1. The lifting cylinder 5 is hingedly installed between the base 1 and the top beam 4. Each lifting cylinder 5 can independently control the extension and retraction. When the piston rod of the lifting cylinder 5 is extended and retracted, it can drive the top beam 4 to rise and fall horizontally or obliquely relative to the base 1. The guide sleeve 2 is made of elastic material, which can undergo adaptive elastic deformation according to the position of the top beam 4 and the inner guide column 3, produce beneficial deformation, and prevent mechanical interference between relatively moving components.

[0017] like Figure 4As shown, the guide sleeve 2 includes outer guide plates 20 arranged side by side, and a plurality of corresponding through holes are opened on both sides of the length direction of the two outer guide plates 20. The outer guide plates 20 are made of elastic material and can produce beneficial deformation under the movement of the inner guide column 3. In order to achieve the fixed installation between the outer guide plates 20 on both sides, a partition plate 21 is installed at the through hole at the upper position, a spacer sleeve 22 is installed at the through hole at the middle position, and a solid shaft 23 is installed at the through hole at the bottom position. The solid shaft 23 is located in the base 1.

[0018] The partition 21 is provided with a hole connected to the through hole, and the corresponding hole and the through hole, and the spacer 22 and the through hole are matched with connecting bolts 24, and the inner guide column 3 is located in the space formed by the outer guide plate 20 and the partition 21. The two outer guide plates 20 are fixedly installed by connecting bolts 24, and a relative limit is formed by the partition 21 and the spacer 22. The partition 21 at the upper position allows the outer guide plates 20 on both sides to form a connection limit, and the setting of the spacer 22 allows a gap to be left at the side of the guide sleeve 2, which is not only conducive to effective heat dissipation during relative movement, but also can produce a small beneficial deformation within a set range, so that the top beam 4 at the upper position can be tilted, moved and raised as needed.

[0019] Furthermore, in order to realize the connection between the guide sleeve 2 and the base 1, as Figure 6 As shown, the bottom of the guide sleeve 2 is installed with first sleeves 25 arranged side by side, and the base 1 is installed with a first connecting shaft 26 matched with the first sleeve 25. After the guide sleeve 2 is inserted into the base 1, the two first connecting shafts 26 are used to achieve a fixed connection, which facilitates the detachable connection between the guide sleeve 2 and the base 1. In order to achieve the vertical displacement limit of the inner guide column 3 in the guide sleeve 2, a groove 35 matched with the first sleeve 25 is opened at the bottom of the inner guide column 3. When the groove 35 is lowered onto the first sleeve 25, the inner guide column 3 and the top beam 4 on the top will no longer drop vertically relative to the base 1.

[0020] Furthermore, if Figure 5 As shown, the inner guide column 3 comprises side panels 30 arranged side by side, and vertical panels 31 are installed on both sides of the length direction of the two side panels 30. The vertical panels 31 and the side panels 30 form a rectangular basic frame, and a sealing plate 32 is installed at the bottom between the side panels 30, and the card slot 35 is located at the lower side of the sealing plate 32. In order to realize the vertical movement guidance of the inner guide column 3 in the guide sleeve 2, a long groove 33 is opened on the side panel 30, and a guide shaft 27 matching the long groove 33 is provided in the guide sleeve 2. In order to enhance the overall strength of the inner guide column 3 and reduce the wear caused by the relative movement between the inner guide column 3 and the guide sleeve 2, the outer sides of the side panels 30 and the vertical panels 31 are connected with welding copper strips 34.

[0021] Furthermore, in order to realize the installation connection between the inner guide column 3 and the top beam 4, as shown in FIG. Figure 7As shown, a second bushing 36 is installed on the top of the inner guide column 3, and a second connecting shaft 37 is installed on the top beam 4, wherein the diameter of the second bushing 36 is larger than the diameter of the second connecting shaft 37, and an elliptical groove 38 is opened on the inner guide column 3 corresponding to the position of the second bushing 36, and the second connecting shaft 37 is located in the elliptical groove 38 and the second bushing 36. The arrangement of the above structure allows the second connecting shaft 37 to move vertically in the elliptical groove 38 and to rotate relatively in the second bushing 36, that is, the inner guide column 3 can be relatively tilted or swung relative to the top beam 4 during the vertical lifting process, thereby meeting the different position requirements of the anchor drilling rig on the top beam 4 and avoiding mechanical interference between moving parts.

[0022] Furthermore, in order to realize the hinged connection between the lifting cylinder 5 and the base 1 and the top beam 4, it is ensured that the top beam 4 can tilt or swing at different angles within a set range when it is vertically lifted relative to the base 1, such as Figure 8 and Fig. 9 As shown, a first earring 50 is installed at the bottom of the cylinder of the lifting cylinder 5, a third connecting shaft 54 ​​is provided on the base 1, the first earring 50 is installed on the third connecting shaft 54 ​​through a first joint bearing 51, a second earring 52 is installed at the end of the piston rod of the lifting cylinder 5, a fourth connecting shaft 55 is provided on the top beam 4, and the second earring 52 is installed on the fourth connecting shaft 55 through a second joint bearing 53. Through the connection of the first joint bearing 51 and the second joint bearing 53, the connection between the lifting cylinder 5 and the base 1 and the top beam 4 can be tilted within a set range, so that the anchor drill on the top beam 4 can cope with drilling and anchoring support at different heights.

[0023] Furthermore, the guide sleeve 2 is made of spring steel plate. As an elastic material, the spring steel plate can produce beneficial deformation when the inner guide column 3 is vertically lifted or lowered relative to the guide sleeve 2. Through the independent control and extension of each lifting cylinder 5, the anchor drilling machine at various positions on the top beam 4 can realize drilling and anchoring support at different heights in the tunnel.

[0024] When the multi-angle elastic lifting mechanism of the utility model is in operation, the lifting cylinder 5 is telescopic to drive the inner guide column 3 to move up and down, and the guide sleeve 2 is made of a spring plate. By adjusting the stroke of the lifting cylinder 5 at the left and right positions, the top beam 4 can be tilted left and right. At this time, the guide sleeve 2 is deformed by the external force and tilts along with the top beam 4. The lifting cylinders 5 are arranged on the left and right sides, with two on each side. By controlling the different telescopic strokes of the four cylinders, the top frame can be tilted horizontally and in the front and rear directions.

[0025] There are four lifting cylinders 5, which are arranged in two groups on the left and right. The upper end of the lifting cylinder 5 is hinged to the top beam 4, and the lower end is hinged to the base 1. The four cylinders can be controlled independently, and different telescopic strokes can change the horizontal and front-back angles of the top beam 4, the guide sleeve 2, and the inner guide column 3. The guide sleeve 2 and the inner guide column 3 are arranged in a set, and under the external force state, the horizontal angle of the inner guide column 3 changes by deforming the spring steel plate.

[0026] The four lifting cylinders work together to adjust the top beam in the front and back, left and right directions, and vertical lifting operations. The use of spring steel plates can produce beneficial deformation under external forces to prevent mechanical interference. The overall frame structure improves the strength of the lifting mechanism and ensures the normal operation of the equipment. The overall lifting mechanism has the functions of lifting, leveling, and front and rear angle adjustment. Multiple groups of multi-stage cylinders are used to control the lifting and angle adjustment of the guide column to meet the structural design requirements of the gantry anchor miner and prevent structural damage due to asynchrony.

[0027] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all known technologies.

Claims

1. A multi-angle elastic lifting mechanism, characterized in that: The utility model comprises two bases (1) arranged side by side, each base (1) is provided with a vertically arranged guide sleeve (2), an inner guide column (3) is provided in the guide sleeve (2), and the inner guide column (3) can be lifted and lowered vertically along the guide sleeve (2), and the upper ends of the inner guide columns (3) on both sides are hingedly provided with a same top beam (4), and each base (1) is provided with a lifting cylinder (5) on both sides, and the lifting cylinder (5) is hingedly provided between the base (1) and the top beam (4), wherein the guide sleeve (2) is made of elastic material, and each lifting cylinder (5) can be independently controlled to extend and retract, and when the piston rod of the lifting cylinder (5) is extended and retracted, it can drive the top beam (4) to be lifted and lowered horizontally or tilted relative to the base (1).

2. The multi-angle elastic lifting mechanism according to claim 1, characterized in that: The guide sleeve (2) comprises outer guide plates (20) arranged side by side, and both sides of the two outer guide plates (20) in the length direction are provided with a plurality of corresponding through holes. The outer guide plates (20) are made of elastic material, wherein a partition plate (21) is installed at the through hole at the upper position, a spacer sleeve (22) is installed at the through hole at the middle position, and a solid shaft (23) is installed at the through hole at the bottom position. The solid shaft (23) is located in the base (1). A hole connected to the through hole is opened in the partition plate (21), and corresponding holes and through holes, and spacer sleeves (22) and through holes are matched with connecting bolts (24). The inner guide column (3) is located in the space formed by the outer guide plates (20) and the partition plates (21).

3. The multi-angle elastic lifting mechanism according to claim 1, characterized in that: The bottom of the guide sleeve (2) is provided with first shaft sleeves (25) arranged in parallel, the base (1) is provided with a first connecting shaft (26) matching with the first shaft sleeve (25), and the bottom of the inner guide column (3) is provided with a slot (35) matching with the first shaft sleeve (25).

4. The multi-angle elastic lifting mechanism according to claim 1, characterized in that: The inner guide column (3) comprises side plates (30) arranged side by side, both sides of the two side plates (30) in the length direction are provided with vertical plates (31), a sealing plate (32) is provided at the bottom between the side plates (30), a long groove (33) is provided on the side plate (30), a guide shaft (27) matching with the long groove (33) is provided in the guide sleeve (2), and the outer sides of the side plates (30) and the vertical plates (31) are connected with welded copper strips (34).

5. The multi-angle elastic lifting mechanism according to claim 1, characterized in that: A second sleeve (36) is installed on the top of the inner guide column (3), and a second connecting shaft (37) is installed on the top beam (4), wherein the diameter of the second sleeve (36) is larger than the diameter of the second connecting shaft (37), an elliptical groove (38) is opened on the inner guide column (3) corresponding to the position of the second sleeve (36), and the second connecting shaft (37) is located in the elliptical groove (38) and the second sleeve (36).

6. The multi-angle elastic lifting mechanism according to claim 1, characterized in that: A first earring (50) is installed at the bottom of the cylinder barrel of the lifting cylinder (5); a third connecting shaft (54) is provided on the base (1); the first earring (50) is installed on the third connecting shaft (54) via a first joint bearing (51); a second earring (52) is installed at the end of the piston rod of the lifting cylinder (5); a fourth connecting shaft (55) is provided on the top beam (4); the second earring (52) is installed on the fourth connecting shaft (55) via a second joint bearing (53).

7. The multi-angle elastic lifting mechanism according to claim 1, characterized in that: The guide sleeve (2) is made of spring steel plate.

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