阅读说明：本技术 一种具有集成推缸和控制阀块的液压泵送装备 (Hydraulic pumping equipment with integrated cylinder and control valve block ) 是由 何国鹏 朱秋林 蒙振净 陈志平 宋旭 郑理慎 于 2021-07-30 设计创作，主要内容包括：本发明公开了一种具有集成推缸和控制阀块的液压泵送装备包括集成控制阀块、机架、底座、集成推缸、导向法兰、进料斗、输送缸、液压刀闸阀、出料口,所述集成推缸的活塞杆内部有两条通道,分别连通集成控制阀块与推缸的无杆腔/有杆腔,所述集成推缸的缸筒前端连接破碎活塞头,电气系统通过调节集成控制阀块驱动液压油进入无杆腔/有杆腔,使缸筒与破碎活塞头在料斗及输送缸内往复运动达到泵送目的,本发明集成推缸的缸筒既作为液压执行元件又充当物料泵送机构,大大减少中间件,使结构更紧凑,节省占地空间,方便维修,提高输送效率,同时集成控制阀块至推缸活塞杆进油端,减少液压管路及降低管路沿程压力损失,降低能耗,提高经济性。(The invention discloses a hydraulic pumping device with an integrated push cylinder and a control valve block, which comprises an integrated control valve block, a frame, a base, an integrated push cylinder, a guide flange, a feed hopper, a conveying cylinder, a hydraulic knife gate valve and a discharge port, wherein two channels are arranged inside a piston rod of the integrated push cylinder and are respectively communicated with a rodless cavity/a rod cavity of the integrated control valve block and the push cylinder, the front end of a cylinder barrel of the integrated push cylinder is connected with a crushing piston head, an electrical system drives hydraulic oil to enter the rodless cavity/the rod cavity by adjusting the integrated control valve block so that the cylinder barrel and the crushing piston head reciprocate in the hopper and the conveying cylinder to achieve the pumping purpose, the cylinder barrel of the integrated push cylinder not only serves as a hydraulic actuating element but also serves as a material pumping mechanism, the intermediate piece is greatly reduced, the structure is more compact, the occupied space is saved, the maintenance is convenient, the conveying efficiency is improved, and the integrated control valve block is arranged at the oil inlet end of the piston rod of the push cylinder, the hydraulic pipeline and the on-way pressure loss of the pipeline are reduced, the energy consumption is reduced, and the economical efficiency is improved.)

1. A hydraulic pumping device with an integrated pushing cylinder and a control valve block is characterized by comprising the control valve block, the integrated pushing cylinder, a feed hopper, a conveying cylinder and a hydraulic knife gate valve; wherein the content of the first and second substances,

the hydraulic knife gate valve is arranged in the conveying cylinder;

the feed hopper is arranged between the integrated pushing cylinder and the conveying cylinder, and the three cylinders are positioned on the same axis and are communicated with each other;

the integrated pushing cylinder comprises a piston rod, a cylinder barrel and a crushing piston head; the starting end of the piston rod is assembled in the cylinder barrel, and a cavity of the cylinder barrel is divided into two parts, wherein one part is a rodless cavity, and the other part is a rod cavity; the tail end of the piston rod is positioned outside the cylinder barrel, a first oil port and a second oil port are arranged in the end face of the tail end of the piston rod, the first oil port is communicated with the rodless cavity, and the second oil port is communicated with the rod cavity; the crushing piston head is arranged at one end of the cylinder barrel, which is far away from the tail end of the piston rod;

the control valve block is used for controlling hydraulic oil to enter the first oil port and the second oil port so as to control the moving direction of the cylinder barrel of the integrated push cylinder; the control valve block is also used for controlling hydraulic oil to enter the hydraulic knife gate valve so as to control the opening and closing state of the hydraulic knife gate valve.

2. The hydraulic pumping apparatus with integrated stroker and control valve block of claim 1, wherein the control valve block comprises an oil passage block, a first directional valve, and a second directional valve;

the oil circuit block is provided with a main oil pump connecting oil port, an auxiliary oil pump connecting oil port, a knife gate valve reversing oil port and an integrated push cylinder reversing oil port; the integrated cylinder pushing reversing oil port is communicated with the first oil port and the second oil port, the main oil pump connecting oil port is connected with the first reversing valve, and the first reversing valve controls the oil path direction of the integrated cylinder pushing reversing oil port so as to control the reciprocating movement of the cylinder barrel; and the auxiliary oil pump connecting oil port is connected with a second reversing valve, and the second reversing valve controls the direction of an oil path of the reversing oil port of the knife gate valve so as to control the opening and closing state of the hydraulic knife gate valve.

3. The hydraulic pumping apparatus with integrated stroker and control valve block of claim 2, wherein the control valve block further comprises a first spill valve, a second spill valve, and a check valve; the first overflow valve is connected in a pipeline between the main oil pump connecting oil port and the first reversing valve; the second overflow valve is connected in a pipeline between the auxiliary oil pump connecting oil port and the second reversing valve; the check valve is arranged in a pipeline between the oil connecting port of the auxiliary oil pump and the second reversing valve.

4. The hydraulic pumping equipment with the integrated thrust cylinder and control valve block as claimed in claim 3, wherein the first directional control valve, the second directional control valve, the first overflow valve, the second overflow valve and the check valve are integrally installed on an oil path block, and the oil path block is installed on the end face of the end of the piston rod, so that the integrated thrust cylinder reversing oil port is directly communicated with the first oil port and the second oil port.

5. The hydraulic pumping equipment with the integrated thrust cylinder and control valve block as claimed in claim 2, wherein the junction of the integrated thrust cylinder reversing oil port and the first oil port and the second oil port is sealed by an O-ring.

6. The hydraulic pumping equipment with integrated thrust cylinder and control valve block as claimed in claim 1, further comprising a guide flange disposed in the feed hopper, the inner bore of the guide flange being fitted over the cylinder barrel of the integrated thrust cylinder.

7. The hydraulic pumping apparatus with integrated thrust cylinder and control valve block of claim 6, wherein a dust ring, a seal ring and a grease passage are provided between the inner bore of the guide flange and the cylinder bore of the integrated thrust cylinder.

8. The hydraulic pumping apparatus with integrated thrust cylinder and control valve block of claim 1, wherein the inner and outer surfaces of the cylinder barrel and the inner surface of the delivery cylinder are hard chrome plated.

9. The hydraulic pumping apparatus with integrated thrust cylinder and control valve block of claim 1, wherein the breaking piston head is made of alloy steel, removably replaceable.

10. A hydraulic pumping arrangement with integrated stroking cylinder and control valve block as claimed in claim 3, characterized in that the arrangement is operative to comprise three phases:

a preparation stage: hydraulic oil pumped by the system respectively enters the integrated control valve block from a main oil pump connecting oil port and an auxiliary oil pump connecting oil port, a hydraulic knife gate valve is driven to be in a closed state, and materials flow into a feed hopper and a conveying cylinder;

a pushing stage: the first reversing valve is driven to control hydraulic oil to enter the rodless cavity from the first oil port to drive the cylinder barrel and the crushing piston head to move rightwards until the crushing piston head reaches the inlet of the conveying cylinder, the second reversing valve is driven to control the oil way to open the hydraulic knife gate valve, materials begin to be crushed, extruded and pumped, the crushing piston head continues to move rightwards to the outlet of the conveying cylinder, and the second reversing valve is driven to control the oil way to close the hydraulic knife gate valve;

and (3) a return stage: and the first reversing valve is driven to control hydraulic oil to enter the rod cavity from the second oil port to drive the cylinder barrel and the crushing piston head to move leftwards until the crushing piston head returns to the initial position, and the equipment finishes material pumping in one period.

Technical Field

The invention relates to logistics conveying equipment, in particular to hydraulic pumping equipment with an integrated push cylinder and a control valve block

Background

Compared with the traditional material conveying technology such as a screw conveyor, a scraper conveyor, a belt conveyor and the like, the hydraulic pumping equipment has the excellent characteristics of large treatment capacity, long conveying distance, strong material adaptability, tightness, no odor leakage and the like, so that the single-cylinder hydraulic pumping equipment is very widely applied to the environmental protection industry, particularly the treatment of sludge, kitchen and dangerous waste garbage. The single-cylinder hydraulic pumping equipment operates by driving a hydraulic station through a motor to enable hydraulic oil to enter an oil cylinder to form thrust, and materials in a feed hopper are conveyed to a designated destination through a pipeline. The existing hydraulic pumping equipment consists of a hydraulic oil cylinder, a conveying piston cylinder, a water tank, a hopper, a gate valve and the like, but has the defects of complex structure, high energy consumption, large occupied space, inconvenience in maintenance and the like, such as a tubular single-plunger pump disclosed in patent document CN 105889011A.

Disclosure of Invention

In order to solve at least one technical problem of the background art, the invention provides a hydraulic pumping device with an integrated thrust cylinder and a control valve block.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a hydraulic pumping device with an integrated pushing cylinder and a control valve block comprises the control valve block, the integrated pushing cylinder, a feed hopper, a conveying cylinder and a hydraulic knife gate valve; wherein the content of the first and second substances,

the hydraulic knife gate valve is arranged in the conveying cylinder;

the feed hopper is arranged between the integrated pushing cylinder and the conveying cylinder, and the three cylinders are positioned on the same axis and are communicated with each other;

the integrated pushing cylinder comprises a piston rod, a cylinder barrel and a crushing piston head; the starting end of the piston rod is assembled in the cylinder barrel in an interference fit mode, and a cavity of the cylinder barrel is divided into two parts, wherein one part is a rodless cavity, and the other part is a rod cavity; the tail end of the piston rod is positioned outside the cylinder barrel, a first oil port and a second oil port are arranged in the end face of the tail end of the piston rod, the first oil port is communicated with the rodless cavity, and the second oil port is communicated with the rod cavity; the crushing piston head is arranged at one end of the cylinder barrel, which is far away from the tail end of the piston rod;

the control valve block is used for controlling hydraulic oil to enter the first oil port and the second oil port so as to control the moving direction of the cylinder barrel of the integrated push cylinder; the control valve block is also used for controlling hydraulic oil to enter the hydraulic knife gate valve so as to control the opening and closing state of the hydraulic knife gate valve.

Further, the control valve block comprises an oil way block body, a first reversing valve and a second reversing valve;

the oil circuit block is provided with a main oil pump connecting oil port, an auxiliary oil pump connecting oil port, a knife gate valve reversing oil port and an integrated push cylinder reversing oil port; the integrated cylinder pushing reversing oil port is communicated with the first oil port and the second oil port, the main oil pump connecting oil port is connected with the first reversing valve, and the first reversing valve controls the oil path direction of the integrated cylinder pushing reversing oil port so as to control the reciprocating movement of the cylinder barrel; and the auxiliary oil pump connecting oil port is connected with a second reversing valve, and the second reversing valve controls the direction of an oil path of the reversing oil port of the knife gate valve so as to control the opening and closing state of the hydraulic knife gate valve.

Furthermore, the control valve block also comprises a first overflow valve, a second overflow valve and a one-way valve; the first overflow valve is connected in a pipeline between the main oil pump connecting oil port and the first reversing valve; the second overflow valve is connected in a pipeline between the auxiliary oil pump connecting oil port and the second reversing valve; the check valve is arranged in a pipeline between the oil connecting port of the auxiliary oil pump and the second reversing valve.

Furthermore, the first reversing valve, the second reversing valve, the first overflow valve, the second overflow valve and the check valve are integrally installed on an oil way block, and the oil way block is installed on the end face of the tail end of the piston rod, so that the integrated cylinder pushing reversing oil port is directly communicated with the first oil port and the second oil port.

Furthermore, the joints of the integrated cylinder pushing reversing oil port, the first oil port and the second oil port are sealed by O-shaped rings.

Furthermore, the hydraulic pumping equipment with the integrated pushing cylinder and the control valve block further comprises a guide flange, the guide flange is arranged in the feed hopper, and an inner hole of the guide flange is sleeved on a cylinder barrel of the integrated pushing cylinder.

Furthermore, a dustproof ring, a sealing ring and a lubricating grease channel are arranged between the inner hole of the guide flange and the cylinder barrel of the integrated pushing cylinder.

Further, the inner surface and the outer surface of the cylinder barrel and the inner surface of the conveying cylinder are plated with hard chrome.

Further, the crushing piston head is made of alloy steel and can be disassembled and replaced.

Further, the equipment comprises three phases when in operation:

a preparation stage: hydraulic oil pumped by the system respectively enters the integrated control valve block from a main oil pump connecting oil port and an auxiliary oil pump connecting oil port, a hydraulic knife gate valve is driven to be in a closed state, and materials flow into a feed hopper and a conveying cylinder;

a pushing stage: the first reversing valve is driven to control hydraulic oil to enter the rodless cavity from the first oil port to drive the cylinder barrel and the crushing piston head to move rightwards until the crushing piston head reaches the inlet of the conveying cylinder, the second reversing valve is driven to control the oil way to open the hydraulic knife gate valve, materials begin to be crushed, extruded and pumped, the crushing piston head continues to move rightwards to the outlet of the conveying cylinder, and the second reversing valve is driven to control the oil way to close the hydraulic knife gate valve;

and (3) a return stage: and the first reversing valve is driven to control hydraulic oil to enter the rod cavity from the second oil port to drive the cylinder barrel and the crushing piston head to move leftwards until the crushing piston head returns to the initial position, and the equipment finishes material pumping in one period.

Compared with the prior art, the invention has the beneficial effects that:

the cylinder barrel of the integrated pushing cylinder of the hydraulic pumping equipment with the integrated pushing cylinder and the control valve block is used as a hydraulic actuating element and a material pumping mechanism, so that redundant intermediate pieces are greatly reduced, the structure is more compact, the occupied space is saved, the maintenance is convenient, and the conveying efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of a hydraulic pumping arrangement with an integrated thrust cylinder and control valve block provided by an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a hydraulic pumping arrangement with an integrated thrust cylinder and control valve block provided by an embodiment of the present invention;

FIG. 3 is a front view of the control valve block;

FIG. 4 is a rear view of the control valve block;

FIG. 5 is a hydraulic schematic of the hydraulic pumping arrangement of the present invention having an integrated thrust cylinder and control valve block;

FIG. 6 is a schematic cross-sectional view of an integrated thrust cylinder;

in the figure: 1-control valve block; 2-a frame; 3-a base; 4-integrating a pushing cylinder; 5-a guide flange; 6-a feed hopper; 7-a conveying cylinder; 8-hydraulic knife gate valve; 9-a discharge hole; 1.1-oil circuit block; 1.2-a first overflow valve; 1.3-a second overflow valve; 1.4-one-way valve; 1.5-an electro-hydraulic directional valve 1; 1.6-electromagnetic directional valve; 1.7-main oil pump connecting oil port; 1.8-the auxiliary oil pump is connected with the oil port; 1.9-a knife gate valve reversing oil port; 1.10-an integrated cylinder pushing reversing oil port; 1.11-oil return port; 4.1-piston rod; 4.2-cylinder; 4.3 having a rod cavity; 4.4 rodless cavities; 4.5 crushing the piston head; 4.6 a first oil port; 4.7 the second oil port.

Detailed Description

Example (b):

in the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection, electrical connection and signal connection; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application.

The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.

Referring to fig. 1 to 6, the hydraulic pumping equipment with an integrated push cylinder and a control valve block provided in the present embodiment mainly includes a control valve block 1, an integrated push cylinder 4, a feed hopper 6, a conveying cylinder 7, and a hydraulic knife gate valve 8.

Wherein, this hydraulic pressure knife gate valve 8 is installed in carrying jar 7, that is to say, can control the discharge gate 9 of carrying jar 7 to open and close through the opening and close of control hydraulic pressure knife gate valve 8. This feeder hopper 6 then sets up between integrated thrust cylinder 4 and the transport cylinder 7, and the three is located same axis and communicates each other, and this integrated thrust cylinder 4 is mainly used for discharging the material propelling movement of feeder hopper 6 to the discharge gate 9 of transport cylinder 7.

Specifically, as shown in fig. 6, the integrated thrust cylinder 4 includes a piston rod 4.1, a cylinder tube 4.2, and a crushing piston head 4.5; wherein, the starting end of the piston rod 4.1 is assembled in the cylinder 4.2 in an interference fit manner, and the cavity of the cylinder is divided into two parts, one part is a rodless cavity 4.4, and the other part is a rod cavity 4.3; the tail end of the piston rod 4.1 is positioned outside the cylinder barrel 4.2, a first oil port 4.6 and a second oil port 4.7 are arranged in the end face of the tail end of the piston rod 4.1, the first oil port 4.6 is communicated with the rodless cavity 4.4 through two channels in the piston rod 4.1, and the second oil port 4.7 is communicated with the rod cavity 4.3; the crushing piston head 4.5 is arranged at the end of the cylinder 4.2 away from the end of the piston rod 4.1 for crushing the pushed material.

This control valve block 1 then is used for controlling hydraulic oil and gets into first hydraulic fluid port 4.6 and second hydraulic fluid port 4.7, and when hydraulic oil got into first hydraulic fluid port 4.6 to having in the pole chamber 1.4, then promoted cylinder 4.2 and move to the right, and when hydraulic oil got into second hydraulic fluid port 4.7 to having in the pole chamber 4.3, then promoted cylinder 4.2 and move to the left to realize the reciprocal motion of control broken piston head 4.5 following cylinder 4.2 in feeder hopper 6 and conveying cylinder 7. In addition, the control valve block 1 is also used for controlling hydraulic oil to enter the hydraulic knife gate valve 8, when the hydraulic oil enters the hydraulic knife gate valve 8, the hydraulic knife gate valve 8 is opened, otherwise, the hydraulic knife gate valve is closed.

Therefore, the hydraulic pumping equipment with the integrated pushing cylinder and the control valve block has the advantages that the cylinder barrel of the integrated pushing cylinder is used as a hydraulic actuating element and a material pumping mechanism, redundant intermediate pieces are greatly reduced, the structure is more compact, the occupied space is saved, the maintenance is convenient, and the conveying efficiency is improved.

Specifically, the control valve block 1 comprises an oil path block body 1.1, a first reversing valve 1.5 and a second reversing valve 1.6; the oil way block 1.1 is provided with a main oil pump connecting oil port 1.7, an auxiliary oil pump connecting oil port 1.8, a knife gate valve reversing oil port 1.9 integrated cylinder pushing reversing oil port 1.10 and an oil return port 1.11; the integrated cylinder pushing reversing oil port 1.10 is communicated with a first oil port 4.6 and a second oil port 4.7, the main oil pump connecting oil port 1.7 is connected with a first reversing valve 1.5, and the first reversing valve 1.5 controls the direction of an oil path of the integrated cylinder pushing reversing oil port 1.10, so that the reciprocating movement of the cylinder barrel 4.2 can be controlled; the auxiliary oil pump connecting oil port 1.8 is connected with the second reversing valve 1.6, and the second reversing valve 1.6 controls the direction of an oil path of the knife gate valve reversing oil port 1.9, so that the opening and closing state of the hydraulic knife gate valve 8 can be controlled.

In addition, the control valve block 1 further comprises a first overflow valve 1.2, a second overflow valve 1.3 and a check valve 1.4; the first overflow valve 1.2 is connected in a pipeline between the main oil pump connecting oil port 1.7 and the first reversing valve 1.5; the second overflow valve 1.3 is connected in a pipeline between the connecting oil port 1.8 of the auxiliary oil pump and the second reversing valve 1.6; so, through being provided with first overflow valve 1.2 and second overflow valve 1.3, can play system pressure regulation and pressure release guard action. And the check valve 1.4 is arranged in a pipeline between the connecting oil port 1.8 of the auxiliary oil pump and the second reversing valve 1.6 to prevent the hydraulic oil from flowing back.

Preferably, the first direction valve 1.5, the second direction valve 1.6, the first overflow valve 1.2, the second overflow valve 1.3 and the check valve 1.4 are integrally mounted on the oil way block, that is, the whole control valve block is integrated, so that the structure is more compact; in addition, this oil circuit block 1.1 is installed at the terminal surface of piston rod 4.1 to make integrated thrust cylinder switching-over hydraulic fluid port 1.10 directly be linked together with first hydraulic fluid port 4.6, second hydraulic fluid port 4.7, thereby can reduce the hydraulic pressure pipeline and reduce pipeline along journey loss of pressure, reduce the energy consumption, improve economic nature.

Specifically, the joints of the integrated cylinder pushing reversing oil port 1.10, the first oil port 4.6 and the second oil port 4.7 are sealed by O-shaped rings to ensure the sealing property.

Preferably, the hydraulic pumping equipment with the integrated thrust cylinder and control valve block further comprises a frame 2, a base 3 and a guide flange 5; foretell integration pushes away jar 4 and installs inside frame 2 to through flange joint at the right flank of frame 2 left side board, frame 2, feeder hopper 6, hydraulic knife gate valve 8 all fixes and is a sharp installation on base 3, guide flange 5 sets up in feeder hopper 6 left end, 5 hole covers on integrated cylinder 4.2 who pushes away jar 4 in guide flange 5 simultaneously, and be equipped with the dust ring between guide flange 5's hole and the integrated cylinder that pushes away the jar, sealing washer and lubricating grease passageway, in order to provide sealed and guide effect.

Specifically, the inner surface and the outer surface of the cylinder barrel 4.2 and the inner surface of the conveying cylinder are subjected to hard chromium plating treatment; the crushing piston head 4.5 is made of high hardness alloy steel and can be disassembled and replaced. The first reversing valve 1.5 is an electro-hydraulic reversing valve, the second reversing valve 1.6 is an electromagnetic reversing valve, and the second overflow valve 1.3 is an electromagnetic overflow valve.

As shown by the hydraulic principle of fig. 5, the equipment has three stages in the material pumping process:

a preparation stage: the system pumps hydraulic oil and respectively enters the integrated control valve block 1 from the main oil pump connecting oil port 1.7 and the auxiliary oil pump connecting oil port 1.8, all the electromagnetic valves are in a power-off state, materials flow into the feed hopper 6 and the conveying cylinder 7, and the hydraulic knife gate valve 8 is in a closed state.

A pushing stage: the electric system drives the first reversing valve 1.5(YV3) to be electrified, hydraulic oil is controlled to enter the rodless cavity 4.4 from the first oil port 4.6 to drive the cylinder barrel 4.2 of the integrated push cylinder and the crushing piston head 4.5 to move rightwards until the crushing piston head 4.5 reaches the inlet of the conveying cylinder 7, the electric system drives the second reversing valve 1.6(YV4) to be electrified, the control oil path opens the hydraulic knife gate valve 8, materials begin to be crushed, extruded and pumped, the crushing piston head 4.5 continues to move rightwards to the outlet of the conveying cylinder 7, the electric system drives the second reversing valve 1.6(YV5), and the control oil path closes the hydraulic knife gate valve 8.

And (3) a return stage: the electric system drives the first reversing valve 1.5(YV2) to be electrified, and controls hydraulic oil to enter the rod cavity 4.3 from the second oil port 4.7 to drive the cylinder 4.2 and the crushing piston head 4.5 to move leftwards until the crushing piston head 4.5 returns to the initial position.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.