CN213011685U - Roadway cantilever hydraulic lifting device - Google Patents

Abstract

The utility model discloses a hydraulic lifting device for a roadway cantilever, wherein an upper extension arm, a hydraulic lifting device and a lower support leg are connected together to form a stand column, and the stand column is limited between the roadway top and the roadway bottom; the extension height of a piston rod in the hydraulic lifting device determines the height of a cantilever; the cantilever is lifted up and down and moves freely; the cantilever and the cantilever fixing sleeve are connected into a whole by welding, and the cantilever fixing sleeve penetrates through the end face of the hydraulic lifting device to be welded and synthesized, so that the continuous rotation of the upper extension arm and the hydraulic lifting device can be realized; the hydraulic lifting device and the lower support leg can rotate continuously, and the piston rod in the lifting device can be locked at any position after extending out.

Description

Roadway cantilever hydraulic lifting device

The technical field is as follows:

this patent technique belongs to and removes hoist and mount technical field, concretely relates to tunnel cantilever hydraulic lifting device is applicable to the narrow and small, the limited space of davit extension length of space of lifting by crane such as tunnel, culvert.

Background art:

with the rapid development of mining machinery and the popularization of heavy machinery application, the transportation, loading and hoisting of the heavy machinery are more and more frequent, but due to the limitation of the space in narrow hoisting space areas such as roadways, tunnels, culverts and the like, a plurality of large-scale loading and hoisting machinery cannot be unfolded, so that the work brings great difficulty.

At present, the roadway operation and loading hoisting mainly comprises the transshipment of a hydraulic support body and the transshipment of the hydraulic support body by combining a conveyer belt; due to the pulley position at the head of the suspension arm, when a heavy object is large in size and lifted highly, the problem of collision and interference between the heavy object and the suspension arm can be encountered, and the maximum lifting height of the heavy object is limited.

To the narrow and small transportation in space, loading and lifting of lifting by crane such as tunnel, culvert, the hydraulic support body reprints, and the conveyer belt is transported, and this kind of technique is only applicable to the material small, light in weight, and this kind of technique is not suitable, and cantilever hydraulic lifting device suitability is stronger, also can make the cantilever rotate around the stand in addition, realizes the effect of cantilever oscilaltion, free movement.

The invention content is as follows:

to the defect of prior art, this scheme provides a tunnel cantilever hydraulic lifting device.

In order to realize the above purpose, the scheme provides a roadway cantilever hydraulic lifting device which is: mainly by last arm, hydraulic pressure elevating gear, lower landing leg, the cantilever, the fixed cover of cantilever, the reinforcing plate, lift by crane the subassembly, the energy storage ware, the solenoid valve, pressure relay, the manometer, go up the chassis, the hemisphere, the bearing gland, the screw, the end cover, a section of thick bamboo, the end cover flange, the cylinder bottom, the cylinder, on, lower piston, the lock sleeve, fixed thread stopper, hollow piston rod, the nut, the uide bushing, the pole head flange, lower chassis, on, lower bearing, the double-screw bolt, the uide bushing, the cylinder, the piston, the cylinder bottom flange, connect, the pipe fitting is integrated in an organic whole, form rotatory cantilever, its characterized in that: the upper extending arm is connected with the hydraulic lifting device; the hydraulic lifting device is connected with the lower support leg to form an upright post, the cantilever continuously rotates around the upright post, the effects of up-and-down lifting and free movement of the cantilever are realized, and the upright post is limited between the roadway top and the roadway bottom; the extension height of a piston rod in the hydraulic lifting device determines the height of a cantilever; the cantilever and the cantilever fixing sleeve are connected into a whole by welding, the cantilever fixing sleeve penetrates through the end face of the hydraulic lifting device to be welded and synthesized, a reinforcing plate is arranged between the cantilever and the cantilever fixing sleeve, two ends of the reinforcing plate are respectively welded with the cantilever and the cantilever fixing sleeve together, and the lifting assembly is positioned on the cantilever to move; energy storage ware, solenoid valve, pressure relay, manometer pass through valve block integration in an organic whole, pressure relay set for the pressure value, pressure is greater than set for the pressure value solenoid valve and closes, pressure is less than set for the pressure value solenoid valve and opens, the energy storage ware lasts the air feed, the manometer links together with the energy storage ware.

The upper extending arm is connected with the hydraulic lifting device through the flange at the end part by using a screw, so that the continuous rotation of the upper extending arm and the hydraulic lifting device can be realized; the upper extension arm is composed of an upper chassis, a hemisphere, a bearing gland, a screw, an end cover, a cylinder and an end cover flange, the upper chassis is provided with a concave spherical groove, the hemisphere is completely arranged in the concave spherical groove, the convex part of the hemisphere is provided with the bearing, the bearing is divided into an upper part and a lower part, one part is combined with the hemisphere, and the other part is combined with the end cover; the bearing gland is Z-shaped, one side presses the end cover, and the other side is connected with the upper chassis through a screw; the other end of the end cover is connected with the cylinder through threads, the other end of the cylinder is provided with an end cover flange, and the end cover flange is connected with the cylinder through threads.

The hydraulic lifting device is connected with the lower supporting leg through a flange at the end part and connected by a screw, so that the hydraulic lifting device and the lower supporting leg can rotate continuously, and a piston rod in the lifting device can be locked at any position after extending out; the lifting device comprises a cylinder bottom, a cylinder barrel, an upper piston, a lower piston, a locking sleeve, a fixed threaded plug, a hollow piston rod, a nut, a guide sleeve and a rod head flange, wherein an oil port is welded on the outer side of the cylinder barrel, and an oil port is welded on the rod head flange; the upper piston and the lower piston are arranged on two sides of the locking sleeve, a step is arranged on the hollow piston rod, the hollow piston rod penetrates through the locking sleeve and is connected with the upper piston and the lower piston through threads and then is connected with a fixed threaded plug, and the locking sleeve, the upper piston and the lower piston are fixed at the step of the hollow piston rod by the fixed threaded plug; the other end of the hollow piston rod penetrates through the guide sleeve and then is in threaded connection with the rod head flange, a nut is arranged between the rod head flange and the hollow piston rod, the external thread of the guide sleeve is connected with the cylinder barrel, and the other end of the cylinder barrel is connected with the cylinder bottom through threads.

The upper extending arm, the hydraulic lifting device and the lower support leg are connected together to form an upright column which is positioned between the roadway top and the roadway bottom and can realize continuous rotation of the upright column, the lower support leg is provided with a lower chassis, a hemisphere, an upper bearing, a lower bearing, a stud, a bearing gland, a screw, a guide sleeve, a cylinder barrel, a piston, a cylinder bottom flange, a joint and a pipe fitting, the lower chassis is provided with a concave spherical groove, the hemisphere is completely arranged in the concave spherical groove, the convex part of the hemisphere is provided with the bearing, the bearing is divided into an upper part and a lower part, one part is combined with the hemisphere, and the other part is combined with the; the bearing gland is Z-shaped, one side presses the stud, and the other side is connected with the upper chassis through a screw; the stud is connected with the inner hole of the guide sleeve through threads, the outer side of the guide sleeve is connected with the cylinder barrel through threads, the other end of the stud is a piston, an upper bearing is arranged between the stud and the piston, the other end of the cylinder barrel is a cylinder bottom flange, the cylinder bottom flange is connected with the cylinder barrel through threads, a joint pipe fitting is arranged on the cylinder bottom flange, the joint is welded with the cylinder bottom flange, and the pipe fitting is connected with the joint through threads.

Compared with the prior art, the beneficial effect of this scheme is: the upper extending arm, the hydraulic lifting device and the lower support leg are connected together to form an upright post, and the upright post is limited between the top of the roadway and the bottom of the roadway; the extension height of a hollow piston rod in the hydraulic lifting device determines the height of a cantilever; the cantilever is lifted up and down and moves freely; the cantilever and the cantilever fixing sleeve are connected into a whole by welding, and the cantilever fixing sleeve penetrates through the end face of the hydraulic lifting device to be welded and synthesized, so that the continuous rotation of the upper extension arm and the hydraulic lifting device can be realized; the hydraulic lifting device and the lower support leg can rotate continuously, and the piston rod in the lifting device can be locked at any position after extending out.

Drawings

FIG. 1 is a schematic structural view of a roadway cantilever hydraulic lifting device according to the scheme;

FIG. 2 is a schematic diagram of an integration of an energy accumulator, an electromagnetic valve, a pressure relay, a pressure gauge and a valve block of the roadway cantilever hydraulic lifting device according to the scheme;

FIG. 3 is a schematic structural view of an upper extension arm of the roadway cantilever hydraulic lifting device according to the scheme;

fig. 4 is a schematic connection diagram of an upper chassis, a hemisphere, a bearing gland, a screw and an end cover in an upper extension arm of the roadway cantilever hydraulic lifting device according to the scheme;

FIG. 5 is a schematic diagram of connection between an upper extension arm middle cylinder and an end cover flange of a roadway cantilever hydraulic lifting device according to the scheme;

fig. 6 is a schematic structural view of a lower support leg of the roadway cantilever hydraulic lifting device according to the scheme;

fig. 7 is a schematic connection diagram of a lower chassis, a hemisphere, a lower bearing, a stud, a bearing gland, a screw, a guide sleeve and a cylinder barrel in the lower support leg of the roadway cantilever hydraulic lifting device according to the scheme;

FIG. 8 is a schematic connection diagram of a piston in a lower support leg of the roadway cantilever hydraulic lifting device according to the scheme;

FIG. 9 is a schematic connection diagram of a cylinder bottom flange, a joint and a pipe fitting in a lower support leg of the roadway cantilever hydraulic lifting device according to the scheme;

fig. 10 is a schematic structural view of a hydraulic lifting device of a roadway cantilever hydraulic lifting device according to the scheme;

FIG. 11 is a schematic connection diagram of an upper piston and a lower piston of a hydraulic lifting device of a roadway cantilever hydraulic lifting device, a locking sleeve, a fixed threaded plug and a hollow piston rod;

fig. 12 is a schematic connection diagram of a hydraulic lifting device cylinder, a guide sleeve and a rod head flange of the roadway cantilever hydraulic lifting device according to the scheme;

in the figure: the hydraulic lifting device comprises an upper extension arm 1, a hydraulic lifting device 2, a lower support leg 3, a cantilever 4, a lifting component 5, a reinforcing plate 6, a cantilever fixing sleeve 7, an energy accumulator 8, an electromagnetic valve 10, a pressure relay 9, a pressure gauge 11, an upper chassis 12, a hemisphere 13, a bearing 14, a bearing gland 16, a screw 17, an end cover 15, a cylinder 18, an end cover flange 19, a lower chassis 20, a lower bearing 21, a stud 22, a guide sleeve 23, a cylinder barrel 24, an upper bearing 25, a piston 26, a cylinder bottom flange 27, a joint 28, a pipe fitting 29, a cylinder bottom 30, a lower piston 31, a locking sleeve 32, an upper piston 33, a cylinder barrel 34, a hollow piston rod 35, a guide sleeve 36, a rod head flange 37, a nut 38 and a fixed threaded.

Detailed Description

The roadway cantilever hydraulic lifting device is further described in detail with reference to the accompanying drawings and examples, as shown in the figure, the roadway cantilever hydraulic lifting device is formed by integrating a plurality of components into a whole to form a rotating cantilever, and the operation steps are as follows:

step one, connecting a cylinder bottom 30 of the hydraulic lifting device 2 and a cylinder bottom flange 27 of the lower support leg 3 through screws; an end cover flange 19 of the upper extension arm 1 and a rod head flange 37 connected with the hydraulic lifting device 2;

step two, the hollow piston rod 35 of the hydraulic lifting device 2 rapidly extends out, and the upper chassis 12 of the upper extension arm 1 stops when approaching the top of a roadway, a tunnel or a culvert;

manually adjusting a lower stud 22 of the lower support leg 3 to enable an upper chassis 12 of the upper extension arm 1 and a lower chassis 20 of the lower support leg 3 to be respectively contacted with the roadway top and the roadway bottom, and enabling the upright column to be limited between the roadway top and the roadway bottom;

step four, the energy accumulator fills gas into the lower support leg 3 through the electromagnetic valve and the pressure relay, so that constant air pressure is kept in the lower support leg 3;

fifthly, hoisting a heavy object by the hoisting assembly 5 on the cantilever 4, wherein the cantilever 4 can flexibly rotate around the upright post, freely lift according to the height required by hoisting, and complete hoisting and operation;

and sixthly, after the rotating cantilever finishes the hoisting and transferring of the heavy object, the hollow piston rod 35 of the hydraulic lifting device 2 retracts, and the upright column and the cantilever 4 can freely move to the next place needing hoisting to be re-recombined.

This scheme a tunnel cantilever hydraulic lifting device structure characterized in that: the upper extending arm 1 is connected with the hydraulic lifting device 2; the hydraulic lifting device 2 is connected with the lower support leg 3 to form a stand column, the upper extension arm 1 is provided with an upper chassis 12, a hemisphere 13, a bearing 14, a bearing gland 16, a screw 17, an end cover 15, a cylinder 18 and an end cover flange 19, the upper chassis 12 is provided with a concave spherical groove, the hemisphere 13 is completely arranged in the concave spherical groove, the bearing 14 is arranged on the convex part of the hemisphere 13, the bearing 14 is divided into an upper part and a lower part, one part is combined with the hemisphere 13, and the other part is combined with the end cover 15; the bearing gland 16 is Z-shaped, one side presses the end cover 15, and the other side is connected with the upper chassis 12 through a screw 17; the other end of the end cover 15 is connected with the cylinder 18 through threads, the other end of the cylinder 18 is provided with an end cover flange 19, and the end cover flange 19 is connected with the cylinder 18 through threads; the lower leg 3 comprises a lower chassis 20, a hemisphere 13, upper and lower bearings 25, 21, a stud 22, a bearing gland 16, a screw 17, a guide sleeve 36, a cylinder 34, a piston 26, a cylinder bottom flange 27 and a joint 28 pipe fitting 29, wherein the lower chassis 20 is provided with a concave spherical groove, the hemisphere 13 is completely arranged in the concave spherical groove, the convex part of the hemisphere 13 is provided with the lower bearing 21, the lower bearing 21 is divided into an upper part and a lower part, one part is combined with the hemisphere 13, and the other part is combined with the stud 22; the bearing gland 16 is Z-shaped, one side presses the stud 22, and the other side is connected with the lower chassis 20 through the screw 17; the stud 22 is connected with an inner hole of a guide sleeve 36 through threads, the outer side of the guide sleeve 36 is connected with a cylinder barrel 34 through threads, the other end of the stud 22 is provided with a piston 26, an upper bearing 25 is arranged between the stud 22 and the piston 26, the other end of the cylinder barrel 34 is provided with a cylinder bottom flange 27, the cylinder bottom flange 27 is connected with the cylinder barrel 34 through threads, the cylinder bottom flange 27 is provided with a joint 28 and a pipe fitting 29, the joint 28 is welded with the cylinder bottom flange 27, and the pipe fitting is connected with the joint 29 through threads; the lifting device 2 comprises a cylinder bottom 30, a cylinder barrel 34, upper and lower pistons 33 and 34, a locking sleeve 32, a fixed threaded plug 39, a hollow piston rod 35, a nut 38, a guide sleeve 36 and a rod head flange 37, wherein an oil port is welded on the outer side of the cylinder barrel 34, and the rod head flange 37 is welded with the oil port; the upper piston 33 and the lower piston 34 are arranged on two sides of the locking sleeve 32, a step is arranged on the hollow piston rod 35, the hollow piston rod 35 penetrates through the locking sleeve 32 and the upper piston 3 and the lower piston 34 and then is connected with the fixed threaded plug 39 through threads, and the locking sleeve 32, the left piston 33 and the right piston 34 are fixed on the step of the hollow piston rod 35 through the fixed threaded plug 39; the other end of the hollow piston rod 35 penetrates through the guide sleeve 36 and then is connected with the rod head flange 37 through threads, a nut 38 is arranged between the rod head flange 37 and the hollow piston rod 35, the external threads of the guide sleeve 36 are connected with the cylinder barrel 34, and the other end of the cylinder barrel 34 is connected with the cylinder bottom 30 through threads.

The beneficial effect of this scheme is: the cantilever 4 rotates continuously around the upright column, the lifting height of the cantilever 4 can be determined along with the extension height of a hollow piston rod 35 in the hydraulic lifting device 2, and the cantilever is lifted up and down; the upright post is limited between the top of the roadway and the bottom of the roadway and can move freely; the cantilever 4 and the cantilever fixing sleeve 7 are connected into a whole by welding, the cantilever fixing sleeve 7 penetrates through the end face of the hydraulic lifting device 2 to be welded, a reinforcing plate 6 is arranged between the cantilever 4 and the cantilever fixing sleeve 7, two ends of the reinforcing plate 6 are respectively welded with the cantilever 4 and the cantilever fixing sleeve 7 together, and the lifting assembly 5 is positioned on the cantilever 4 to move; the energy accumulator 8, the electromagnetic valve 10, the pressure relay 9 and the pressure gauge 11 are integrated into a whole through a valve block, the pressure relay 9 sets a pressure value, the electromagnetic valve 10 is closed when the pressure is greater than the set pressure value, the electromagnetic valve 10 is opened when the pressure is lower than the set pressure value, the energy accumulator supplies air continuously, and the pressure gauge 11 is connected with the energy accumulator 8; after the hollow piston rod 35 in the hydraulic lifting device 2 extends out, the hollow piston rod can be locked at any position.

Claims (4)

1. The utility model provides a tunnel cantilever hydraulic lifting device, wherein mainly have last extension arm, hydraulic lifting device, lower landing leg, cantilever, the fixed cover of cantilever, reinforcing plate, lift by crane subassembly, energy storage ware, solenoid valve, pressure relay, manometer integration in an organic whole, form rotatory cantilever, its characterized in that: the upper extending arm is connected with the hydraulic lifting device; the hydraulic lifting device is connected with the lower support leg, the cantilever rotates around the upright post, the effects of up-and-down lifting and free movement of the cantilever are realized, and the upright post is limited between the top of the roadway and the bottom of the roadway; the extension height of a piston rod in the hydraulic lifting device determines the height of a cantilever; the cantilever and the cantilever fixing sleeve are connected into a whole by welding, the cantilever fixing sleeve penetrates through the end face of the hydraulic lifting device to be welded and synthesized, a reinforcing plate is arranged between the cantilever and the cantilever fixing sleeve, two ends of the reinforcing plate are respectively welded with the cantilever and the cantilever fixing sleeve together, and the lifting assembly is positioned on the cantilever to move; energy storage ware, solenoid valve, pressure relay, manometer pass through valve block integration in an organic whole, pressure relay set for the pressure value, pressure is greater than set for the pressure value solenoid valve and closes, pressure is less than set for the pressure value solenoid valve and opens, the energy storage ware air feed, pressure table and energy storage ware link together.

2. The roadway cantilever hydraulic lifting device according to claim 1, wherein the upward extending arm and the hydraulic lifting device are connected through a flange at the end part by a screw, so that the upward extending arm and the hydraulic lifting device can rotate continuously; the upper extension arm is composed of an upper chassis, a hemisphere, a bearing gland, a screw, an end cover, a cylinder and an end cover flange, wherein the upper chassis is provided with a concave spherical groove, the hemisphere is completely arranged in the concave spherical groove, a bearing is arranged on a convex part of the hemisphere, the bearing is divided into an upper part and a lower part, one part is combined with the hemisphere, and the other part is combined with the end cover; the bearing gland is Z-shaped, one side presses the end cover, and the other side is connected with the upper chassis through a screw; the other end of the end cover is connected with the cylinder through threads, the other end of the cylinder is provided with an end cover flange, and the end cover flange is connected with the cylinder through threads.

3. The roadway cantilever hydraulic lifting device according to claim 1, wherein the hydraulic lifting device is connected with the lower support leg through a flange at the end part by using a screw, so that the hydraulic lifting device and the lower support leg can rotate continuously; the lifting device comprises a cylinder bottom, a cylinder barrel, an upper piston, a lower piston, a locking sleeve, a fixed threaded plug, a hollow piston rod, a nut, a guide sleeve and a rod head flange, wherein an oil port is welded on the outer side of the cylinder barrel, and an oil port is welded on the rod head flange; an upper piston and a lower piston are arranged on two sides of the locking sleeve, a step is arranged on the hollow piston rod, the hollow piston rod penetrates through the locking sleeve, the upper piston and the lower piston and then is connected with a fixed threaded plug through threads, and the locking sleeve, the left piston and the right piston are fixed at the step of the piston rod by the fixed threaded plug; the other end of the hollow piston rod penetrates through the guide sleeve and then is in threaded connection with the rod head flange, a nut is arranged between the rod head flange and the hollow piston rod, the external thread of the guide sleeve is connected with the cylinder barrel, and the other end of the cylinder barrel is connected with the cylinder bottom through threads.

4. The roadway cantilever hydraulic lifting device of claim 1, wherein the upper extension arm, the hydraulic lifting device and the lower support leg are connected together and positioned between the roadway top and the roadway bottom to realize the continuous rotation of the upright column, the lower support leg comprises a lower chassis, a hemisphere, an upper bearing, a lower bearing, a stud, a bearing gland, a screw, a guide sleeve, a cylinder barrel, a piston, a cylinder bottom flange and a joint pipe fitting, the lower chassis is provided with a concave spherical groove, the hemisphere is completely hidden in the concave spherical groove, the convex part of the hemisphere is provided with the bearing, the bearing is divided into an upper part and a lower part, one part is combined with the hemisphere, and the other part is combined with the stud; the bearing gland is Z-shaped, one side presses the stud, and the other side is connected with the upper chassis through a screw; the stud is connected with the inner hole of the guide sleeve through threads, the outer side of the guide sleeve is connected with the cylinder barrel through threads, the other end of the stud is a piston, an upper bearing is arranged between the stud and the piston, the other end of the cylinder barrel is a cylinder bottom flange, the cylinder bottom flange is connected with the cylinder barrel through threads, a joint pipe fitting is arranged on the cylinder bottom flange, the joint is welded with the cylinder bottom flange, and the pipe fitting is connected with the joint through threads.

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