Telescopic hydraulic support of crane

Abstract

The utility model provides a telescopic hydraulic support for a crane, which relates to the field of telescopic hydraulic supports and comprises an adjusting frame and two hydraulic rods, underframes are slidably mounted on the outer surfaces of two ends of the adjusting frame, and two ends of each hydraulic rod are fixedly mounted on one side of the adjusting frame and one side of each underframe respectively. Lubricating devices are arranged on the outer surfaces of the two ends of the bottom frame, lubricating oil can be injected into the oil inlet tank through the lubricating devices, the lubricating oil enters the flow guide frame through the conveying pipe under the action of gravity, and when the hydraulic rod drives the adjusting frame to slide upwards or downwards in the inner wall of the bottom frame, the lubricating oil can enter the flow guide frame through the conveying pipe. When the adjusting frame rotates, the balls tightly attached to the surface of the adjusting frame are driven to rotate, and lubricating oil in the flow guide frame is taken out and smeared on the adjusting frame, so that the surface smoothness of the adjusting frame is improved, sliding abrasion between the outer surface and the inner wall of the bottom frame is reduced, equipment damage is avoided, the service life of the crane is prolonged, and the working efficiency of the crane is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to telescopic hydraulic support field especially crane telescopic hydraulic support. BACKGROUND

[0002] Telescopic hydraulic support is a kind of key components in heavy machinery equipment such as crane, mainly used to provide support force to ensure the stability of crane in the operation process.

[0003] When using crane to hoist and transport object, according to the use demand, the hydraulic rod on two chassis is started to drive the two ends of adjusting frame to slide up or down in the inner wall of chassis to a certain position, so the height of hoisted object can be adjusted, when crane is used for a long time, the surface of adjusting frame is exposed in air for a long time, oxidation reaction occurs with moisture and oxygen in air, the surface is easy to corrode and rust to become rough, which increases the wear and tear between adjusting frame and chassis, causes damage, thus reduces the service life and working efficiency of crane. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that when using crane to hoist and transport object, according to the use demand, the hydraulic rod on two chassis is started to drive the two ends of adjusting frame to slide up or down in the inner wall of chassis to a certain position, so the height of hoisted object can be adjusted, when crane is used for a long time, the surface of adjusting frame is exposed in air for a long time, oxidation reaction occurs with moisture and oxygen in air, the surface is easy to corrode and rust to become rough, which increases the wear and tear between adjusting frame and chassis, causes damage, thus reduces the service life and working efficiency of crane.

[0005] The utility model solves the technical problem that when using crane to hoist and transport object, according to the use demand, the hydraulic rod on two chassis is started to drive the two ends of adjusting frame to slide up or down in the inner wall of chassis to a certain position, so the height of hoisted object can be adjusted, when crane is used for a long time, the surface of adjusting frame is exposed in air for a long time, oxidation reaction occurs with moisture and oxygen in air, the surface is easy to corrode and rust to become rough, which increases the wear and tear between adjusting frame and chassis, causes damage, thus reduces the service life and working efficiency of crane.

[0006] The effects achieved by the above components are that when the crane is used to hoist and transport objects, the hydraulic rods on the two chassis are started to drive the two ends of the adjusting frame to slide up or down in the inner wall of the chassis to a certain position according to the use requirements, so as to adjust the height of the hoisted object. When the adjusting frame slides up or down in the inner wall of the chassis, the rolling balls closely attached to the adjusting frame will rotate to take out the lubricating oil in the flow guide frame and evenly smear on the outer surface of the adjusting frame, so as to slow down the speed of oxidation corrosion of the surface of the adjusting frame, improve the smoothness of the surface of the adjusting frame, slow down the sliding wear between the adjusting frame and the chassis, and avoid damaging the equipment, thus improving the service life and working efficiency of the crane.

[0007] Preferably, the lubricating device comprises two oil tanks and two collecting boxes, a detachable device is arranged between one side of the collecting box and one side of the chassis, and a conveying pipe is rotatably installed at the outlet of the oil tank; two flow guide frames, in which the outer surface of the inlet of the flow guide frame is threadedly connected with the inner wall of one end of the conveying pipe, and a plurality of rolling balls are installed through the inner wall of the flow guide frame, wherein the outer surface of the rolling ball closely abuts against the outer surface of the adjusting frame, and the two legs at the bottom of the oil tank abut against one side of the flow guide frame; and a plurality of connecting frames, in which the two ends of the connecting frame are fixedly installed on one side of the collecting box and one side of the flow guide frame.

[0008] The effects achieved by the above components are that by arranging the lubricating device, the lubricating oil can be injected into the inside of the oil tank, and under the action of gravity, the lubricating oil enters the inside of the flow guide frame through the conveying pipe. When the hydraulic rod drives the adjusting frame to slide up or down in the inner wall of the chassis, the rolling balls closely attached to the surface of the adjusting frame will rotate to take out the lubricating oil in the flow guide frame and smear on the adjusting frame, so as to improve the smoothness of the surface of the adjusting frame, reduce the sliding wear between the outer surface and the inner wall of the chassis, avoid damaging the equipment, improve the service life and working efficiency of the crane, and the excess lubricating oil flows along the surface of the adjusting frame into the collecting box for collection, which is convenient for recycling and use, and avoids waste.

[0009] Preferably, the plurality of rolling balls are arranged in a staggered and misaligned manner on the inner wall of the flow guide frame, and the inner wall of the collecting box near the surface of the adjusting frame is arranged in a diffusion inclined manner from top to bottom.

[0010] The effects achieved by the above components are that by arranging the rolling balls in a staggered and misaligned manner, the lubricating oil can be more evenly smeared on the surface of the adjusting frame, and by arranging the inner wall of the collecting box in a diffusion inclined manner from top to bottom, the excess lubricating oil can be better collected for recycling and use, and waste is avoided.

[0011] Preferably, the lubricating device further comprises a plurality of wiping blocks, one side of the wiping block is fixedly installed on the inner wall of the guide frame, and is staggered with the plurality of rows of balls, and the wiping block is of sponge material.

[0012] The above-mentioned components achieve the effect that: through the setting of the wiping block, the lubricating oil applied on the adjusting frame can be applied, so that the application is more uniform, and the excess lubricating oil can be wiped and absorbed, facilitating secondary use.

[0013] Preferably, one end of the outer surface of the conveying pipe is fixedly installed with a bearing, and the outer ring of the bearing is fixedly installed on one side of the outlet of the oil tank.

[0014] The above-mentioned components achieve the effect that: through the setting of the bearing, the rotating wear of the conveying pipe and the outlet of the oil tank can be reduced, facilitating the rotation of the conveying pipe, and improving the service life of the two.

[0015] Preferably, the detachable device comprises a threaded hole U-shaped block, two ends of the threaded hole U-shaped block are fixedly installed on one side of the chassis respectively; a threaded hole block, one side of the threaded hole block is fixedly installed on one side of the collecting box, and one end is inserted into the inner wall of the threaded hole U-shaped block; and a bolt, one end of the bolt is screwedly inserted into the inner walls of the threaded hole U-shaped block and the threaded hole block.

[0016] The above-mentioned components achieve the effect that: through the setting of the detachable device, when the oil tank and the guide frame need to be maintained and replaced, the bolt can be manually screwed out of the inner walls of the threaded hole block and the threaded hole U-shaped block, and then the oil tank and the guide frame can be pulled upwards to be detached from the chassis, facilitating replacement and maintenance.

[0017] Preferably, one end of the threaded hole block is in trapezoidal shape in longitudinal section, and the size of the end of the threaded hole block away from the collecting box is smaller than that of the other end.

[0018] The above-mentioned components achieve the effect that: through the setting of the trapezoidal shape of one end of the threaded hole block, the area of one end of the threaded hole block can be reduced, facilitating the rapid alignment with and insertion into the inner wall of the threaded hole U-shaped block, and facilitating installation.

[0019] Preferably, one end of the bolt is fixedly installed with a connecting rope, and one end of the connecting rope is fixedly installed on one side of the threaded hole U-shaped block.

[0020] The above-mentioned components achieve the effect that: through the setting of the connecting rope, the bolt can be positioned in the inner wall of the threaded hole U-shaped block, avoiding loss.

[0021] The beneficial effects of the utility model are:

[0022] By setting the lubricating device, the lubricating oil can be injected into the inside of the oil tank, so that it enters the inside of the guide frame under the action of gravity, when the hydraulic rod drives the adjusting frame to slide up or down in the inner wall of the chassis, the rolling ball closely attached to the surface of the adjusting frame will rotate, the lubricating oil in the inside of the guide frame will be brought out and smeared on the adjusting frame, so that the smoothness of the surface of the adjusting frame is improved, the sliding wear between the outer surface and the inner wall of the chassis is reduced, the equipment is prevented from being damaged, and the service life and working efficiency of the crane are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model will be further explained below in connection with the drawings and embodiments.

[0024] Fig. 1 It is the structural schematic diagram of the utility model.

[0025] Fig. 2 It is the three-dimensional structure schematic diagram of the chassis of the utility model.

[0026] Fig. 3 It is the three-dimensional structure schematic diagram of the oil tank of the utility model.

[0027] Fig. 4 It is the three-dimensional structure schematic diagram of the guide frame of the utility model.

[0028] Legend: 1, adjusting frame, 2, lubricating device, 3, detachable device, 4, chassis, 5, hydraulic rod, 21, oil tank, 22, conveying pipe, 23, guide frame, 24, rolling ball, 25, connecting frame, 26, collection box, 27, wiping block, 28, bearing, 31, screw hole U-shaped block, 32, screw hole block, 33, bolt, 34, connecting rope. DETAILED DESCRIPTION

[0029] The utility model will be further explained below in connection with the drawings and embodiments.

[0030] In the description of the utility model, it is necessary to explain that, unless there is explicit provision and limitation, the term "connected", "connected" should be broad understanding, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through the intermediate medium.

[0031] Figs. 1-4The crane telescopic hydraulic support shown comprises an adjusting frame 1 and two hydraulic rods 5, the outer surfaces of the two ends of the adjusting frame 1 are slidably installed with a chassis 4, the two ends of the hydraulic rods 5 are fixedly installed on one side of the adjusting frame 1 and one side of the chassis 4 respectively, the outer surfaces of the two ends of the chassis 4 are provided with lubricating devices 2, the lubricating devices 2 can inject lubricating oil into the interiors of the oil tanks 21 and the flow guide frames 23, when the hydraulic rods 5 drive the adjusting frame 1 to slide up and down in the inner wall of the chassis 4, the rolling balls 24 closely attached to the adjusting frame 1 will rotate, the lubricating oil in the interiors of the flow guide frames 23 will be brought out and evenly smeared on the outer surface of the adjusting frame 1 to achieve the effect of slowing down the oxidation corrosion. When the crane is used to hoist and transport objects, according to the use requirements, the hydraulic rods 5 on the two chassis 4 are started to drive the two ends of the adjusting frame 1 to slide up or down in the inner wall of the chassis 4 to a certain position, in this way, the height of the hoisted object can be adjusted, when the adjusting frame 1 slides up or down in the inner wall of the chassis 4, the rolling balls 24 closely attached to the adjusting frame 1 will rotate, the lubricating oil in the interiors of the flow guide frames 23 will be brought out and evenly smeared on the outer surface of the adjusting frame 1, in this way, the speed of oxidation corrosion of the surface of the adjusting frame 1 can be slowed down, the smoothness of the surface of the adjusting frame 1 can be improved, the sliding wear between the adjusting frame 1 and the chassis 4 can be slowed down, the equipment can be prevented from being damaged, thus the service life and working efficiency of the crane can be improved.

[0032] Figs. 1-4 The lubricating device 2 shown comprises two oil tanks 21 and two collecting boxes 26, the side of the collecting box 26 and one side of the chassis 4 are provided with detachable devices 3, the outlet of the oil tank 21 is rotatably installed with a conveying pipe 22; two flow guide frames 23, the outer surface of the inlet of the flow guide frame 23 is threadedly connected with the inner wall of one end of the conveying pipe 22, the inner wall of the flow guide frame 23 is installed with a plurality of rolling balls 24, the outer surface of the rolling ball 24 is closely attached to the outer surface of the adjusting frame 1, the bottom two legs of the oil tank 21 abut on one side of the flow guide frame 23; a plurality of connecting frames 25, the two ends of the connecting frame 25 are fixedly installed on one side of the collecting box 26 and one side of the flow guide frame 23 respectively. By setting the lubricating device 2, the lubricating oil can be injected into the interior of the oil tank 21, under the action of gravity, it enters the interior of the flow guide frame 23 through the conveying pipe 22, when the hydraulic rod 5 drives the adjusting frame 1 to slide up or down in the inner wall of the chassis 4, the rolling ball 24 closely attached to the surface of the adjusting frame 1 will rotate, the lubricating oil in the interior of the flow guide frame 23 will be brought out and smeared on the adjusting frame 1, in this way, the smoothness of the surface of the adjusting frame 1 can be improved, the sliding wear between the outer surface and the inner wall of the chassis 4 can be reduced, the equipment can be prevented from being damaged, the service life and working efficiency of the crane can be improved, and the excess lubricating oil will flow along the surface of the adjusting frame 1 into the collecting box 26 to be collected, which is convenient for recycling and secondary use, and can avoid waste.

[0033] Figs. 1-4The several balls 24 shown are installed in staggered staggered manner on the inner wall of the flow guide frame 23, and the inner wall of the collecting box 26 near the surface of the adjusting frame 1 is provided in a diffusion inclined manner from top to bottom. By staggering the balls 24, the lubricating oil can be more evenly applied to the surface of the adjusting frame 1, and the inner wall of the collecting box 26 can be better collected from top to bottom in a diffusion inclined manner, which is convenient for recycling and avoids waste. The lubricating device 2 further comprises a plurality of wiping blocks 27, wherein one side of the wiping block 27 is fixedly installed on the inner wall of the flow guide frame 23, and is staggered with the several rows of balls 24, and the wiping block 27 is of sponge material. By setting the wiping block 27, the lubricating oil applied to the adjusting frame 1 can be spread, making it more evenly applied, and excess lubricating oil can also be wiped off for secondary use. One end of the outer surface of the conveying pipe 22 is fixedly installed with a bearing 28, and the outer ring of the bearing 28 is fixedly installed on one side of the outlet of the oil tank 21. By setting the bearing 28, the rotating wear of the conveying pipe 22 and the outlet of the oil tank 21 can be reduced, the conveying pipe 22 can be rotated, and the service life of the two can be improved.

[0034] Figs. 1-4 The detachable device 3 shown comprises a threaded hole U-shaped block 31, wherein the two ends of the threaded hole U-shaped block 31 are fixedly installed on one side of the bottom frame 4; a threaded hole block 32, wherein one side of the threaded hole block 32 is fixedly installed on one side of the collecting box 26, and one end is inserted into the inner wall of the threaded hole U-shaped block 31; and a threaded bolt 33, wherein one end of the threaded bolt 33 is screwed into the inner wall of the threaded hole U-shaped block 31 and the threaded hole block 32. By setting the detachable device 3, when the oil tank 21 and the flow guide frame 23 need to be maintained and replaced, the threaded bolt 33 can be manually screwed out of the inner wall of the threaded hole block 32 and the threaded hole U-shaped block 31, and then the oil tank 21 and the flow guide frame 23 can be pulled upward to be detached from the bottom frame 4, which is convenient for replacement and maintenance.

[0035] Figs. 1-4 One end of the threaded hole block 32 is in the shape of a trapezoid, and the size of the end of the threaded hole block 32 away from the collecting box 26 is smaller than the other end. By setting the threaded hole block 32 in the shape of a trapezoid, the area of one end of the threaded hole block 32 can be reduced, which is convenient for quick alignment and insertion into the inner wall of the threaded hole U-shaped block 31 for easy installation. One end of the threaded bolt 33 is fixedly installed with a connecting rope 34, and one end of the connecting rope 34 is fixedly installed on one side of the threaded hole U-shaped block 31. By setting the connecting rope 34, the threaded bolt 33 can be limited in the inner wall of the threaded hole U-shaped block 31 to avoid loss.

[0036] Working principle: when the crane is used to lift and transport objects, first inject lubricating oil into the inside of the oil tank 21, so that it enters the inside of the guide frame 23 through the conveying pipe 22 under the action of gravity, then use the crane, according to the use demand, start the two hydraulic rods 5 on the chassis 4 to drive the two ends of the adjusting frame 1 to slide up or down in the inner wall of the chassis 4 to a certain position, so as to adjust the height of the lifted object, when the hydraulic rod 5 drives the adjusting frame 1 to slide up or down in the inner wall of the chassis 4, it will drive the ball 24 closely attached to the surface of the adjusting frame 1 to rotate, take out the lubricating oil in the guide frame 23, and smear on the adjusting frame 1, so as to improve the smoothness of the surface of the adjusting frame 1, reduce the sliding wear between the outer surface and the inner wall of the chassis 4, avoid damaging the equipment, improve the service life and working efficiency of the crane, and the excess lubricating oil will flow along the surface of the adjusting frame 1 into the collecting box 26 for collection, which is convenient for recycling and reuse, and avoids waste.

[0037] When it is necessary to maintain and replace the oil tank 21 and the guide frame 23, the bolt 33 can be manually screwed out of the inner wall of the screw hole block 32 and the screw hole U-shaped block 31, and then the oil tank 21 and the guide frame 23 can be pulled up to be detached from the chassis 4, which is convenient for replacement and maintenance.

[0038] Based on the above ideal embodiment of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. A telescopic hydraulic support for a crane comprising an adjusting frame (1) and two hydraulic rams (5), characterized in that: The outer surface of both ends of the adjusting frame (1) is slidingly installed with a chassis (4), the both ends of the hydraulic rod (5) are respectively fixedly installed on one side of the adjusting frame (1) and one side of the chassis (4), the outer surface of both ends of the chassis (4) is provided with a lubricating device (2), the lubricating device (2) can inject lubricating oil into the inside of the oil tank (21) and the flow guide frame (23), when the hydraulic rod (5) drives the adjusting frame (1) to slide up and down in the inner wall of the chassis (4), the rolling ball (24) closely attached to the adjusting frame (1) will rotate, the lubricating oil in the inside of the flow guide frame (23) is brought out and evenly applied on the outer surface of the adjusting frame (1) to achieve the effect of slowing down the oxidation corrosion.

2. A telescoping hydraulic prop for a crane as claimed in claim 1, characterized in that: The lubricating device (2) comprises two oil tanks (21) and two collecting boxes (26), the side of the collecting box (26) is provided with a detachable device (3) between one side of the chassis (4), the outlet of the oil tank (21) is rotatably installed with a conveying pipe (22); Two flow guide frames (23), wherein the outer surface of the inlet of the flow guide frame (23) is threadedly connected with the inner wall of one end of the conveying pipe (22), the inner wall of the flow guide frame (23) is installed with a plurality of rolling balls (24), wherein the outer surface of the rolling ball (24) is closely attached to the outer surface of the adjusting frame (1), the bottom of the two legs of the oil tank (21) is abutted on one side of the flow guide frame (23); A plurality of connecting frames (25), wherein the both ends of the connecting frame (25) are respectively fixedly installed on one side of the collecting box (26) and one side of the flow guide frame (23).

3. A telescoping hydraulic prop for a crane as defined in claim 2, characterized in that: The plurality of rolling balls (24) are installed in a staggered and dislocated manner on the inner wall of the flow guide frame (23), the side of the inner wall of the collecting box (26) close to the surface of the adjusting frame (1) is provided in a diffusion inclined manner from top to bottom.

4. A telescoping hydraulic prop for a crane as defined in claim 2, wherein: The lubricating device (2) further comprises a plurality of wiping blocks (27), wherein one side of the wiping block (27) is fixedly installed on the inner wall of the flow guide frame (23), and is staggered with the plurality of rows of rolling balls (24), the wiping block (27) is of sponge material.

5. A telescoping hydraulic prop for a crane as defined in claim 2, wherein: One end of the outer surface of the conveying pipe (22) is fixedly installed with a bearing (28), the outer ring of the bearing (28) is fixedly installed on one side of the outlet of the oil tank (21).

6. A telescoping hydraulic prop for a crane as defined in claim 2, wherein: The detachable device (3) comprises a screw hole U-shaped block (31), wherein the both ends of the screw hole U-shaped block (31) are respectively fixedly installed on one side of the chassis (4); A screw hole block (32), wherein one side of the screw hole block (32) is fixedly installed on one side of the collecting box (26), and one end is inserted into the inner wall of the screw hole U-shaped block (31); A bolt (33), wherein one end of the bolt (33) is screwedly inserted into the inner walls of the screw hole U-shaped block (31) and the screw hole block (32).

7. A telescoping hydraulic prop for a crane as defined in claim 6, characterized in that: One end of the screw hole block (32) is in a trapezoidal shape in longitudinal section, and the size of the end of the screw hole block (32) away from the collecting box (26) is smaller than that of the other end.

8. A telescoping hydraulic prop for a crane as defined in claim 6, wherein: One end of the bolt (33) is fixedly installed with a connecting rope (34), one end of the connecting rope (34) is fixedly installed on one side of the screw hole U-shaped block (31).

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