CN215801431U

CN215801431U - Hydraulic trash-cleaning grab bucket with rotatable and telescopic rake claws

Info

Publication number: CN215801431U
Application number: CN202121884242.3U
Authority: CN
Inventors: 盛戈; 李志强; 盛天易
Original assignee: Hunan Diantou Shuicheng Technology Co ltd
Current assignee: Hunan Diantou Shuicheng Technology Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-02-11
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses a hydraulic trash cleaning grab bucket with rotatable and telescopic harrow claws, which mainly comprises a grab bucket frame 1, a hydraulic pump station 21, a hydraulic oil pipe 22, a hydraulic telescopic oil cylinder 23, a hydraulic rotary oil cylinder 24, a guide device 3, shovel teeth 4, a telescopic slideway 5 and a rotary harrow claw 6. Compared with the hydraulic trash removal grab bucket in the prior art, the rotating rake claws 6 of the hydraulic trash removal grab bucket have the advantages that the tooth tips can move along the trash rack grid surface for a certain distance under the tooth tips of the shovel teeth 4 and then are closed with the shovel teeth 4, so that the hydraulic trash removal grab bucket with the rotatable and telescopic rake claws can grab the dirt attached to the trash rack grid surface and can prop up the shovel teeth of the hydraulic trash removal grab bucket, the problem that the hydraulic trash removal grab bucket cannot descend along the trash rack grid surface for trash removal due to the fact that the shovel teeth are propped up by the dirt is well solved, the hydraulic trash removal grab bucket is a scheme which is low in investment and can obtain a good trash removal effect, meanwhile, reliable guarantee is provided for normal operation of trash removal work of a trash rack in a power station, and the hydraulic trash removal grab bucket has wide practicability.

Description

Hydraulic trash-cleaning grab bucket with rotatable and telescopic rake claws

Technical Field

The utility model belongs to a dirt cleaning device for cleaning dirt on a trash rack by a water inlet of a hydraulic turbine of a hydropower station or a water inlet of a pump station, and also belongs to a dirt cleaning device matched with a dirt cleaner or other mechanical equipment.

Background

The hydraulic trash removal grab bucket is a common method for removing trash, and is used for removing trash attached to the front of the trash rack and the surface of the trash rack in order to ensure smooth water flow of the trash rack, so that the trash rack is prevented from being blocked by the trash rack to cause head loss and seriously endanger the safety of the trash rack. In the prior art, the shovel teeth and the rotating claws of the hydraulic trash cleaning grab are both arranged on the grab rack, under general conditions, the shovel teeth are directly fixed on the grab rack, and the rotating claws are arranged on the grab rack through support hinges. When the hydraulic trash-cleaning grab bucket needs to be opened and closed, the opening and closing device of the rotating rake claws of the hydraulic trash-cleaning grab bucket drives the rotating rake claws to rotate around the support hinges fixed on the grab bucket frame, so that the opening and closing actions of the hydraulic trash-cleaning grab bucket are realized. The problems of the hydraulic trash cleaning grab bucket are as follows: the hydraulic trash cleaning grab bucket generally descends along the trash rack surface for cleaning trash, and in the descending process, the hydraulic trash cleaning grab bucket shovels off the trash attached to the trash rack surface by using the fixed teeth fixed on the grab rack, so that the hydraulic trash cleaning grab bucket descends along the trash rack surface, the lower part of the fixed teeth of the grab bucket frame is accumulated with a large amount of dirt shoveled from the surface of the trash rack, the dirt can be tightly attached to the surface of the trash rack under the impact of water flow, or inserted into the trash rack bars to prevent the hydraulic trash cleaning grab bucket from descending and cleaning trash, and the rotary harrow device which is closed and hinged on the grab bucket frame can only clean the trash at the upper part of the tine point of the hydraulic trash grab bucket and can not grab the trash at the lower part of the tine point, and the hydraulic trash cleaning grab bucket can not continue to descend along the trash rack surface for trash cleaning due to the fact that the trash pushed against the lower portion of the tooth tip of the shovel tooth of the grab bucket props the grab bucket, and trash cleaning work of the hydraulic trash cleaning grab bucket is seriously affected. Especially for the trunk and the metal bar inserted into the trash rack bars, the trunk and the metal bar are propped against the sharp teeth of the shovel teeth of the hydraulic trash cleaning grab bucket, and the rotary grab rake can not grab, so that the hydraulic trash cleaning grab bucket can not continuously descend along the trash rack face for trash cleaning, and therefore the trash rack cleaning work of a power station can not be carried out, and the safety of the trash rack can be endangered in serious cases.

Disclosure of Invention

Based on the problems in the prior art, the utility model aims to design a hydraulic trash-cleaning grab bucket with rotatable and telescopic rake claws, which can grab the dirt on the lower part of the tine points of the hydraulic trash-cleaning grab bucket, so that the problem that the hydraulic trash-cleaning grab bucket is propped by the dirt accumulated on the lower part of the tine points of the hydraulic trash-cleaning grab bucket is solved, the hydraulic trash-cleaning grab bucket can normally descend along the surface of a trash rack, and the normal operation of the trash rack is ensured.

The purpose of the utility model is realized by the following technical scheme: the utility model provides a rotatable and flexible hydraulic pressure of rake claw grab bucket of decontaminating, including the grab bucket frame, guider, rake claw actuating mechanism, rotate the rake claw, the forming relieved tooth, its characterized in that rotates the rake claw and installs on the grab bucket frame through flexible slide, the rotation rake claw is connected to this flexible slide's one end, one end articulates on the grab bucket frame in addition, flexible slide is under rake claw actuating mechanism's effect, the pin joint on the flexible slide accessible grab bucket frame rotates, also can carry out concertina movement through the slide of self, thereby it rotates and concertina movement to drive the rotation rake claw of connecting on flexible slide, in order to realize the switching action of hydraulic pressure grab bucket of decontaminating. Because of rotating the one end of claw connection at flexible slide, after flexible slide stretches out, flexible slide can drive the grab bucket claw and move the prong lower part of grab bucket forming relieved tooth, and the position that just rotates the prong of claw can be in grab bucket forming relieved prong lower part, moves a section distance back along the trash rack face and closes with the prong of grab bucket forming relieved tooth to snatch the filth of top in grab bucket forming relieved prong lower part.

The utility model relates to a hydraulic trash cleaning grab bucket with rotatable and telescopic rake claws, which is characterized in that a rake claw driving mechanism is a hydraulic oil cylinder. The telescopic slide way is driven to rotate and stretch by the hydraulic oil cylinder, so that the telescopic slide way drives the rotary rake to rotate and move in the front and back positions, the rotary rake claw is opened and closed, and dirt abutting against the lower part of the tooth point of the shovel tooth is grabbed.

The utility model relates to a hydraulic trash-cleaning grab bucket with rotatable and telescopic harrow claws, which is characterized in that a telescopic slideway is in a telescopic sleeve structure.

When the hydraulic trash-cleaning grab bucket with the rotatable and telescopic claws works, the rotation and the front-back movement of the rotating claws of the hydraulic trash-cleaning grab bucket are realized by utilizing the rotation and the front-back telescopic characteristic of the telescopic slide ways, so that the rotating claws can move to the lower parts of the teeth tips of the hydraulic trash-cleaning grab bucket and close, dirt attached to the trash rack surface and propping up the teeth of the hydraulic trash-cleaning grab bucket can be easily grabbed, the problem that the hydraulic trash-cleaning grab bucket cannot descend along the trash rack surface for trash cleaning because the teeth of the hydraulic trash-cleaning grab bucket are propped by the dirt is well solved, the scheme is small in investment, good trash-cleaning effect can be obtained, and meanwhile, the reliable guarantee is provided for the normal operation of trash-cleaning work of a trash rack of a power station, and the hydraulic trash-cleaning grab bucket has wide practicability.

Drawings

FIG. 1 is a front and side view of a hydraulic trash grab of the prior art

FIG. 2 is a schematic view of a hydraulic trash-cleaning grab bucket in a bucket opening station according to a first embodiment of the utility model

FIG. 3 is a schematic view of a station where the tooth tips of the rotary rake claws approach the surface of a trash rack in the first embodiment of the utility model

Fig. 4 is a schematic view of the hydraulic trash cleaning grab in the bucket closing position according to the first embodiment of the utility model.

Detailed Description

Fig. 1 is a front view and a side view of a hydraulic trash cleaning grab of the prior art, which mainly comprises a grab frame 1, a rotating rake driving system 2, a guiding device 3, a rotating rake 4 and grab teeth 5. The rotary rake claw driving system 2 mainly comprises a hydraulic pump station, a hydraulic oil cylinder and a hydraulic pipeline. When the hydraulic trash cleaning grab bucket descends along the trash rack surface to clean trash rack dirt, the grab bucket teeth 5 of the hydraulic trash cleaning grab bucket can shovel off the dirt on the trash rack surface, then the rotating rake claws 4 are closed under the driving of the rotating rake claw driving system, and the dirt shoveled off by the grab bucket teeth 5 can be grabbed. Because the rotary harrow 4 and the grab bucket tine 5 are both connected to the same grab frame 1, the grab bucket rotary harrow 4 can only grab the dirt on the upper part of the tine point of the grab bucket tine 5, and the rotary harrow 4 can not grab the dirt on the lower part of the tine point of the grab bucket tine 5. And the dirt on the lower part of the bucket tooth 5 seriously hinders the hydraulic trash cleaning grab bucket to continue to descend along the trash rack for trash cleaning, so that the hydraulic trash cleaning grab bucket cannot perform trash cleaning work.

Fig. 2 is a schematic diagram of a hydraulic trash-cleaning grab bucket of a first embodiment of the hydraulic trash-cleaning grab bucket with rotatable and telescopic rake claws of the utility model in a bucket opening station. The hydraulic trash removal grab bucket mainly comprises a grab bucket frame 1, a hydraulic pump station 21, a hydraulic oil pipe 22, a hydraulic telescopic oil cylinder 23, a hydraulic rotating oil cylinder 24, a guide device 3, a shovel tooth 4, a telescopic slideway 5 and a rotating rake claw 6. Wherein the hydraulic pump station 21, the pressure oil pipe 22, the hydraulic telescopic cylinder 23 and the hydraulic rotating cylinder 24 form a rake claw driving mechanism. The structure of the telescopic slideway 5 is a hoisting telescopic arm structure similar to a truck crane, and is a telescopic sleeve structure, one end of the telescopic slideway 5 is connected with the rotary rake 6, and the other end is connected with the grab frame 1 through a support hinge. Fig. 2 shows a schematic diagram of the hydraulic trash cleaning grab bucket that the rake claws are at the opening position, when the hydraulic pump station 21 drives the hydraulic rotating cylinder 24 and the hydraulic telescopic cylinder 23, the hydraulic rotating cylinder 24 drives the telescopic slideway 5 to drive the rotating rake claws 6 to rotate, and the hydraulic telescopic cylinder 23 drives the telescopic slideway 5 to extend, so as to drive the rake claws 6 to move forward, thereby realizing the bucket opening action of the grab bucket. Fig. 3 is a schematic view of a station after the tooth tips of the rotating rake claws approach the surface of a trash rack in the first embodiment of the utility model. As the hydraulic pump station 21 drives the hydraulic rotating cylinder 24, the telescopic chute 5 drives the rotating rake 6 to rotate around the hinge of the telescopic chute 5 and the grab rack 1, so as to drive the tips of the teeth of the rotating rake 6 to be close to the trash rack. Fig. 4 is a schematic view of the hydraulic trash cleaning grab in the bucket closing position according to the first embodiment of the utility model. Along with the hydraulic pump station 21 drives the hydraulic telescopic oil cylinder 23, the hydraulic telescopic oil cylinder 23 drives the telescopic slideway 5 to move, so that the position of the rake claw 6 is driven to move backwards, and the bucket closing action of the grab bucket is realized. When the hydraulic pump station 21 drives the hydraulic telescopic cylinder 23 and the hydraulic rotating cylinder 23 to have the driving direction opposite to the driving direction, the grab bucket opening action can be completed. It can be seen from the closing process of the grab bucket that the tooth tips of the rotating rake claws 6 are closed with the shovel teeth 4 after moving for a certain distance along the surface of the trash rack at the lower parts of the tooth tips of the shovel teeth 4, so that the hydraulic trash cleaning grab bucket with the rotatable and telescopic rake claws can grab the dirt attached to the surface of the trash rack and propping the shovel teeth of the hydraulic trash cleaning grab bucket, can well solve the problem that the hydraulic trash cleaning grab bucket cannot descend along the surface of the trash rack for cleaning the trash because the shovel teeth are propped by the dirt, is a scheme which can obtain good trash cleaning effect with small investment, and simultaneously provides reliable guarantee for the normal operation of the trash cleaning operation of the trash rack in a power station.

Claims

1. The utility model provides a rotatable and flexible hydraulic pressure of rake claw grab bucket of decontaminating, including the grab bucket frame, guider, the rake claw actuating mechanism, the forming relieved tooth, rotate the rake claw, its characterized in that rotates the rake claw and installs on the grab bucket frame through flexible slide, the rotation rake claw is connected to this flexible slide's one end, one end articulates on the grab bucket frame in addition, flexible slide is under rake claw actuating mechanism's effect, the pin joint on the flexible slide accessible grab bucket frame rotates, also can carry out concertina movement through the slide of self, thereby drive the rotation rake claw of connecting on flexible slide and rotate and the removal of front and back position, in order to realize the switching action of hydraulic pressure grab bucket of decontaminating.

2. A hydraulic trash-cleaning grab bucket with rotatable and retractable rake claws as claimed in claim 1, characterized in that the rake claw driving mechanism is a hydraulic cylinder.

3. A rake rotatable and retractable hydraulic trash removal grab bucket according to claim 1, wherein the telescoping ramp is in the form of a telescoping sleeve construction.