CN211472656U - Dredging grab bucket vehicle - Google Patents

Abstract

The utility model relates to the field of dredging vehicles and discloses a dredging grab bucket vehicle, wherein the bottom of a bracket is rotationally connected to a vehicle body through a hydraulic rotary support, and a suspension arm is rotationally connected to the top of the bracket; the gripper is suspended at the front end part of the suspension arm through the gripper control mechanism, and the opening and closing of the gripper are controlled through the gripper control mechanism; in the gripper control mechanism, one ends of a first oil pipe and a second oil pipe are respectively communicated with a hydraulic control valve, the middle parts of the first oil pipe and the second oil pipe are respectively wound in first oil pipe grooves and second oil pipe grooves of first oil pipe winding drums and second oil pipe winding drums, and the other ends of the first oil pipe and the second oil pipe are respectively communicated with a lower cavity and an upper cavity of an oil cylinder; the oil cylinder is suspended at the lower part of the front end of the suspension arm, and a piston rod of the oil cylinder is rotationally connected with the clamping jaw of the gripper through a linkage block; the width of the first oil pipe groove is more than one and less than the outer diameters of the two first oil pipes; the width of the second oil pipe groove is larger than one and smaller than the outer diameters of the two second oil pipes. The grab bucket truck can effectively avoid the condition that the oil pipe is wound in disorder when being folded and unfolded, ensure the normal function of the oil cylinder and ensure that the grab can be freely opened or closed.

Description

Dredging grab bucket vehicle

Technical Field

The utility model relates to a desilting car field, in particular to desilting grab bucket car.

Background

In recent years, with the acceleration of urbanization, the scale of towns is expanding, and the pollution problem caused by domestic sewage and domestic garbage is receiving more and more attention. The dredging grab bucket vehicle is a sanitation vehicle for cleaning, collecting and transferring sludge in a river or a sewer, avoids secondary pollution, has high working speed, large capacity and convenient transportation, and is suitable for collecting and transporting large garbage such as sludge, stones and the like. The opening or closing of the gripper on the dredging gripper vehicle is generally driven by an oil cylinder, the oil cylinder and the gripper are of an integral structure, when the gripper needs to move upwards or downwards, the hydraulic winch moves the gripper and the oil cylinder upwards or downwards through a steel wire rope, and at the moment, an oil pipe communicated with an upper cavity oil port and a lower cavity oil port of the oil cylinder can also be shortened or extended along with the moving upwards or downwards of the oil cylinder.

In the prior art, oil pipe reels for winding oil pipes are generally I-shaped reels, the oil pipes are wound on connecting pipes between baffle plates on two sides of the I-shaped reels, and because the connecting pipes are wide in width, a plurality of circles of oil pipes can be wound on the connecting pipes along the length direction of the connecting pipes, as shown in fig. 1, when the oil pipes on the oil pipe reels are wound and released along with the upward movement or the downward movement of an oil cylinder, the winding is often staggered and disordered, and the situation that the oil pipes convey oil is unsmooth can be caused in serious cases.

Disclosure of Invention

The purpose of the invention is as follows: to the problem that exists among the prior art, the utility model provides a dredging grab bucket car for oil pipe reel of winding oil pipe can effectively avoid oil pipe to appear twining the condition in disorder when receiving and releasing, guarantees that the function of hydro-cylinder is normal, ensures that the tongs can open freely or closed.

The technical scheme is as follows: the utility model provides a dredging grab bucket vehicle, which comprises a vehicle body, a suspension arm, a gripper and a support, wherein the bottom of the support is rotatably connected on the vehicle body through a hydraulic rotary support, and the suspension arm is rotatably connected at the top of the support; the gripper is suspended at the front end part of the suspension arm through a gripper control mechanism, and the opening and closing of the gripper are controlled through the gripper control mechanism; the gripper control mechanism consists of a first oil pipe, a second oil pipe, a first oil pipe winding drum, a second oil pipe winding drum and an oil cylinder, wherein one end of the first oil pipe is communicated with the hydraulic control valve, the middle part of the first oil pipe is wound in an oil pipe groove of the first oil pipe winding drum, and the other end of the first oil pipe is communicated with a lower cavity of the oil cylinder; one end of the second oil pipe is communicated with the hydraulic control valve, the middle part of the second oil pipe is wound in an oil pipe groove of the second oil pipe winding drum, and the other end of the second oil pipe is communicated with an upper cavity of the oil cylinder; the oil cylinder is suspended at the lower part of the front end of the suspension arm, and a piston rod of the oil cylinder is rotationally connected with each clamping jaw of the gripper through a linkage block; the width of the first oil pipe groove is more than one and less than the outer diameters of the two first oil pipes; the width of the second oil pipe groove is larger than one and smaller than the outer diameters of the two second oil pipes.

Preferably, the first oil pipe winding drum and the second oil pipe winding drum are coaxially and rotatably connected to the support, oil pipe grooves of the first oil pipe winding drum and the second oil pipe winding drum are respectively sleeved with a first spiral spring and a second spiral spring, the larger inner diameter end of the first spiral spring is fixedly connected with the side wall of the first oil pipe groove, and the smaller inner diameter end of the first spiral spring is fixedly connected with a shaft of the first oil pipe winding drum; the larger end of the inner diameter of the second spiral spring is fixedly connected with the side wall of the second oil pipe groove, and the smaller end of the inner diameter of the second spiral spring is fixedly connected with the shaft of the second oil pipe winding drum.

Preferably, the oil cylinder is suspended at the lower part of the front end of the suspension arm through a hydraulic winch and a steel wire rope, the hydraulic winch is fixed on the support, one end of the steel wire rope is wound on the hydraulic winch, and the other end of the steel wire rope passes through the first pulley and the second pulley in sequence and then is fixedly connected with the oil cylinder; the first pulley and the second pulley are respectively connected to the front end and the tail end of the suspension arm in a rotating mode.

Has the advantages that: in the utility model, when the gripper control mechanism controls the opened gripper to be closed, hydraulic oil is pumped into the first oil pipe through the oil pump, the oil enters the lower cavity of the oil cylinder through the first oil pipe, the piston rod of the oil cylinder moves upwards, the piston rod drives the linkage block to move upwards, and the clamping jaw of the opened gripper is closed; when the closed gripper needs to be opened, the oil pump pumps oil into the second oil pipe, the oil enters the upper cavity of the oil cylinder through the second oil pipe, the piston rod of the oil cylinder moves downwards, the piston rod drives the linkage block to move downwards, and then the clamping jaw of the gripper below the piston rod is driven to open. When the tongs and the oil cylinder need to be integrally moved upwards, the steel wire rope is wound through the hydraulic winch, so that the oil cylinder is driven to be communicated with the tongs to be integrally moved upwards, the first oil pipe and the second oil pipe are shortened due to the fact that the oil cylinder is moved upwards, and then the first oil pipe and the second oil pipe are respectively wound in the first oil pipe groove and the second oil pipe groove; when the hand grip and the oil cylinder are required to be integrally moved downwards, the steel wire rope is released through the hydraulic winch, so that the oil cylinder is driven to be communicated with the hand grip to be integrally moved downwards, the first oil pipe and the second oil pipe can be extended due to the fact that the oil cylinder moves downwards, and the first oil pipe and the second oil pipe are respectively pulled out of the first oil pipe groove and the second oil pipe groove. Because the inner diameters of the first oil pipe groove and the second oil pipe groove are both larger than one and smaller than the outer diameters of the two first oil pipes and the two second oil pipes, in the process of shortening and extending the first oil pipe and the second oil pipe, the first oil pipe and the second oil pipe can only be wound in a manner that one circle is close to one circle in a superposed manner or one circle is close to one circle in a loose manner in the first oil pipe groove and the second oil pipe groove respectively, the condition of winding disorder cannot occur, the normal function of the oil cylinder is ensured, and the hand grip can be opened or closed freely.

Drawings

FIG. 1 is a schematic perspective view of an oil pipe reel in the prior art;

FIG. 2 is a schematic view of the whole structure of the dredging grab bucket vehicle;

FIG. 3 is a schematic perspective view of a first and second tubing reel;

FIG. 4 is a cross-sectional view of the first and second oil tube reels after being reeled in the oil tube;

FIG. 5 is a cross-sectional left or right view of the first or second tubing reel.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The embodiment provides a dredging grab bucket vehicle, as shown in fig. 2, which mainly comprises a vehicle body 1, a suspension arm 2, a gripper 3 and a support 4, wherein the bottom of the support 4 is rotatably connected to the vehicle body 1 through a hydraulic rotary support 5, the suspension arm 2 is rotatably connected to the top of the support 4, and the front end and the tail end of the suspension arm 2 are respectively rotatably connected with a first pulley 6 and a second pulley 7; the opening and closing of the gripper 3 are controlled by a gripper control mechanism, the gripper 3 and the gripper control mechanism are of an integral structure, the integral structure is suspended at the lower part of the front end of the suspension arm through a hydraulic winch 8 and a steel wire rope 9, the hydraulic winch 8 is fixed on the support 4, one end of the steel wire rope 9 is wound on the hydraulic winch 8, and the other end of the steel wire rope passes through a first pulley 6 and a second pulley 7 in sequence and then is fixedly connected with an oil cylinder 10 in the gripper control mechanism.

The gripper control mechanism comprises a first oil pipe 11, a second oil pipe 12, a first oil pipe winding drum 13, a second oil pipe winding drum 14 and an oil cylinder 10, as shown in fig. 3 to 5, the first oil pipe winding drum 13 and the second oil pipe winding drum 14 are coaxially and rotatably connected to the upper part of the support 4, the rotating shafts of the first oil pipe winding drum 13 and the second oil pipe winding drum 14 are perpendicular to the suspension arm 2, a first spiral spring 20 and a second spiral spring 21 are respectively sleeved on a first oil pipe groove 15 of the first oil pipe winding drum 13 and a second oil pipe groove 16 of the second oil pipe winding drum 14, the larger inner diameter end of the first spiral spring 20 is fixedly connected with the side wall of the first oil pipe groove 15, and the smaller inner diameter end of the first spiral spring is fixedly connected with a shaft 22 of the first oil pipe; the end with the larger inner diameter of the second spiral spring 21 is fixedly connected with the side wall of the second oil pipe groove 16, and the end with the smaller inner diameter is fixedly connected with the shaft 23 of the second oil pipe winding drum 14.

One end of the first oil pipe 11 is communicated with the hydraulic control valve, the middle part of the first oil pipe is wound in the first oil pipe groove 15 of the first oil pipe winding drum 13 and surrounds the periphery of the spiral spring 20, and the other end of the first oil pipe is communicated with the lower cavity of the oil cylinder 10; one end of the second oil pipe 12 is communicated with the hydraulic control valve, the middle part of the second oil pipe is wound in the second oil pipe groove 16 of the second oil pipe winding drum 14 and surrounds the periphery of the spiral spring 21, and the other end of the second oil pipe is communicated with the upper cavity of the oil cylinder 10; the two clamping jaws of the hand grip 3 are rotatably connected, the bottom end of a piston rod 17 of the oil cylinder 10 is rotatably connected with a rotating connection point of the two clamping jaws of the hand grip 3, the upper part of a linkage block 18 is fixedly connected with a cylinder body of the oil cylinder 10, and the lower part of the linkage block is respectively rotatably connected with the two clamping jaws of the hand grip 3; the width w1 of the first oil pipe groove 15 is more than one and less than the outer diameters of the two first oil pipes 11; the width w2 of the second oil tube groove 16 is greater than one and less than the outer diameter of the two second oil tubes 12.

The working principle of the dredging grab bucket vehicle in the embodiment is as follows:

firstly, a support 4 is driven by a hydraulic rotary support 5 to drive a suspension arm 2 and a gripper 3 to rotate to a position to be desilted, then the hydraulic winch 8 integrally moves the opened gripper 3 and a gripper control mechanism downwards to a required position through a steel wire rope 9, then hydraulic oil is pumped into a first oil pipe 11 through an oil pump, the oil enters a lower cavity of an oil cylinder 10 through the first oil pipe 11, a piston rod 17 of the oil cylinder 10 moves upwards, the piston rod 17 drives two clamping jaws of the gripper 3 to rotate relatively, the originally opened clamping jaw of the gripper 3 is closed, and sludge or garbage is gripped into the gripper 3; then, the hydraulic winch 8 integrally moves the closed hand grip 3 and the hand grip control mechanism to a preset height through a steel wire rope 9, and the hydraulic rotary support 5 drives the support 4 to rotate reversely, so that the suspension arm 2 and the hand grip 3 are driven to rotate above the carriage 19 and then stop. And then the oil pump pumps oil into the second oil pipe 12, the oil enters the upper cavity of the oil cylinder 10 through the second oil pipe 12, the piston rod 17 of the oil cylinder 10 moves downwards, the piston rod 17 drives the two clamping jaws of the gripper 3 to rotate oppositely, the clamping jaw of the gripper 3 below the piston rod is further driven to be opened, and sludge or garbage in the gripper 3 is poured into the carriage 19.

When the hydraulic winch 8 winds the steel wire rope 9 to drive the oil cylinder 10 to be communicated with the gripper 3 to move upwards integrally, the oil cylinder 10 moves upwards to shorten the first oil pipe 11 and the second oil pipe 12, and the first spiral spring 20 and the second spiral spring 21 expand to wind the first oil pipe 11 and the second oil pipe 12 in the first oil pipe groove 15 and the second oil pipe groove 16 respectively; when the hydraulic winch 8 releases the steel wire rope 9 to drive the oil cylinder 10 to communicate with the gripper 3 to move downwards integrally, the downwards movement of the oil cylinder 10 can cause the first oil pipe 11 and the second oil pipe 12 to be elongated, and further compress the first spiral spring 20 and the second spiral spring 21, so that the first oil pipe 11 and the second oil pipe 12 are pulled out of the first oil pipe groove 15 and the second oil pipe groove 16 respectively. Because the first oil pipe groove 15 is larger than one and smaller than the outer diameters of the two first oil pipes 11, and the width of the second oil pipe groove 16 is larger than one and smaller than the outer diameters of the two second oil pipes 12, in the process of shortening and extending the first oil pipe 11 and the second oil pipe 12, the first oil pipe 11 and the second oil pipe 12 can only be wound in the first oil pipe groove 15 and the second oil pipe groove 16 in a way that one circle is next to one circle in a superposed manner, or one circle is next to one circle in a loose manner, as shown in fig. 4, the condition of winding disorder cannot occur, the normal function of the oil cylinder 10 is ensured, and the gripper 3 can be freely opened or closed.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (3)

1. The dredging grab bucket vehicle is characterized by comprising a vehicle body, a suspension arm, a gripper and a support, wherein the bottom of the support is rotatably connected to the vehicle body through a hydraulic rotary support, and the suspension arm is rotatably connected to the top of the support; the gripper is suspended at the front end part of the suspension arm through a gripper control mechanism, and the opening and closing of the gripper are controlled through the gripper control mechanism; the gripper control mechanism consists of a first oil pipe, a second oil pipe, a first oil pipe winding drum, a second oil pipe winding drum and an oil cylinder, wherein one end of the first oil pipe is communicated with the hydraulic control valve, the middle part of the first oil pipe is wound in a first oil pipe groove of the first oil pipe winding drum, and the other end of the first oil pipe is communicated with a lower cavity of the oil cylinder; one end of the second oil pipe is communicated with the hydraulic control valve, the middle part of the second oil pipe is wound in a second oil pipe groove of the second oil pipe winding drum, and the other end of the second oil pipe is communicated with an upper cavity of the oil cylinder; the oil cylinder is suspended at the lower part of the front end of the suspension arm, and a piston rod of the oil cylinder is rotationally connected with each clamping jaw of the gripper through a linkage block; the width of the first oil pipe groove is more than one and less than the outer diameters of the two first oil pipes; the width of the second oil pipe groove is larger than one and smaller than the outer diameters of the two second oil pipes.

2. The dredging grab bucket vehicle of claim 1, wherein the first oil pipe winding drum and the second oil pipe winding drum are coaxially and rotatably connected to the support, a first spiral spring and a second spiral spring are respectively sleeved on oil pipe grooves of the first oil pipe winding drum and the second oil pipe winding drum, the larger inner diameter end of the first spiral spring is fixedly connected with the side wall of the first oil pipe groove, and the smaller inner diameter end of the first spiral spring is fixedly connected with a shaft of the first oil pipe winding drum; the larger end of the inner diameter of the second spiral spring is fixedly connected with the side wall of the second oil pipe groove, and the smaller end of the inner diameter of the second spiral spring is fixedly connected with the shaft of the second oil pipe winding drum.

3. The dredging grab bucket vehicle of claim 1 or 2, wherein the oil cylinder is suspended at the lower part of the front end of the boom through a hydraulic winch and a steel wire rope, the hydraulic winch is fixed on the bracket, one end of the steel wire rope is wound on the hydraulic winch, and the other end of the steel wire rope passes through the first pulley and the second pulley in sequence and then is fixedly connected with the oil cylinder; the first pulley and the second pulley are respectively connected to the front end and the tail end of the suspension arm in a rotating mode.

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