CN208648643U - A kind of suction forced oil device of hoistable platform hydraulic oil pump - Google Patents
A kind of suction forced oil device of hoistable platform hydraulic oil pump Download PDFInfo
- Publication number
- CN208648643U CN208648643U CN201821129214.9U CN201821129214U CN208648643U CN 208648643 U CN208648643 U CN 208648643U CN 201821129214 U CN201821129214 U CN 201821129214U CN 208648643 U CN208648643 U CN 208648643U
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- Prior art keywords
- pump
- pump block
- block
- centre bore
- hydraulic oil
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Abstract
The utility model discloses a kind of suction forced oil devices of hoistable platform hydraulic oil pump, including pump block, pump core and valve plate, the pump block is equipped with centre bore, the bottom outer wall of the pump block is equipped with external screw thread, the valve plate is equipped with threaded hole, the external screw thread of the pump block is tightened in the threaded hole of valve plate and the bottom surface of pump block is flushed with the bottom surface of valve plate, the underclearance of the pump core cooperates in the centre bore of pump block, the top of the pump core stretches out in outside pump block, the lower part of the pump core and the centre bore of pump block are equipped with dustproof construction and sealing structure, the dustproof construction is located at the top open part of centre bore.The device can be flexibly threadedly secured on hydraulic oil pump by processing to pump block, enabled forced oil device, when needing replacing directly pump block screw down replacement it is new, production cost can be reduced, reduce the wasting of resources.
Description
Technical field
The utility model relates to hoistable platform technical fields, are especially a kind of suction pressure oil dress of hoistable platform hydraulic oil pump
It sets.
Background technique
The important component that forced oil device is hoistable platform hydraulic oil pump is inhaled, the circulation piston by inhaling forced oil device is inhaled
Pressure oil moving handle mechanical energy is converted into the pressure energy of liquid.Currently, domestic hydraulic oil pump is that directly suction forced oil device is welded to
On hydraulic oil pump, there are oil leak situations caused by rosin joint for such words weld, caused by the high temperature generated when should also weld
Pump block inner wall deformation leads to problems such as pump block and pump core cooperation not up to standard, when pump block abrasion or internal holes, the below standard need of slot size
It when replacing, generally requires to replace entire hydraulic oil pump, this, which is undoubtedly, increases production cost, wastes resource.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of processing by pump block, enabled forced oil device can
To be flexibly threadedly secured on hydraulic oil pump, when needing replacing directly pump block screw down replacement it is new, life can be reduced
Produce the suction forced oil device of cost, the hoistable platform hydraulic oil pump for reducing the wasting of resources.
The technical solution of the utility model is to provide a kind of suction pressure oil of hoistable platform hydraulic oil pump having following structure
Device, including pump block, pump core and valve plate, the pump block are equipped with centre bore, and the bottom outer wall of the pump block is equipped with external screw thread, described
Valve plate is equipped with threaded hole, and the external screw thread of the pump block is tightened in the threaded hole of valve plate and the bottom surface of pump block and the bottom surface of valve plate
It flushes, the underclearance of the pump core cooperates in the centre bore of pump block, and the top of the pump core stretches out in outside pump block, the pump
The lower part of core and the centre bore of pump block are equipped with dustproof construction and sealing structure, and the dustproof construction, which is located at the top of centre bore, to be opened
At mouthful.
The dustproof construction is equipped with a dustband, and the dustband is embedded in the first annular groove in centre bore,
The inner wall of the dustband and the outer wall of pump core offset.
The sealing structure is equipped with a sealing ring, and the sealing ring is embedded in the second annular groove in centre bore,
The upper and lower part of the inner wall of the sealing ring offsets with the outer wall of pump core, and the sealing ring is y-type seal ring, the sealing
There is spacing between the middle part of the inner wall of circle and the outer wall of pump core.
The top of the pump core is equipped with the annular protrusion connecting with spring cup.
The top of the pump block is equipped with outer-hexagonal.
The first annular groove is connected to the top surface of pump block.
After using the above structure, the utility model has the advantage that can by processing to pump block, enabled forced oil device
To be flexibly threadedly secured on hydraulic oil pump, i.e., it is tightened in the threaded hole of valve plate, is needed by the external screw thread of pump block
When replacement directly pump block screw down replacement it is new, production cost can be reduced, reduce the wasting of resources.Again due under the pump core
The centre bore of portion and pump block is equipped with dustproof construction and sealing structure, to can increase leakproofness and dust-proof effect.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the suction forced oil device of the hoistable platform hydraulic oil pump of the utility model.
Fig. 2 is the schematic perspective view of the suction forced oil device of the hoistable platform hydraulic oil pump of the utility model.
It is as shown in the figure:
1, pump block, 1.1, centre bore, 1.2, outer-hexagonal, 2, pump core, 2.1, annular protrusion, 3, valve plate, 4, dustband, 5, close
Seal.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figs. 1-2, the suction forced oil device of a kind of hoistable platform hydraulic oil pump of the utility model, including pump block 1, pump
Core 2 and valve plate 3, the pump block 1 are equipped with centre bore 1.1, and the bottom outer wall of the pump block 1 is equipped with external screw thread, sets on the valve plate 3
There is threaded hole, the external screw thread of the pump block 1 is tightened in the threaded hole of valve plate 3 and the bottom surface of pump block 1 and the bottom surface of valve plate 3 are neat
It is flat, be exactly pump block 1 and valve plate 3 threaded connection screw after, the bottom surface of pump block 1 is flushed with the bottom surface of valve plate 3.The pump core 2
Underclearance cooperates in the centre bore 1.1 of pump block 1, and inner cavity chamber of the centre bore 1.1 as pump block 1, pump core 2 can the company of sliding up and down
It connects in centre bore 1.1, the top of the pump core 2 stretches out in outside pump block 1, the lower part of the pump core 2 and the centre bore of pump block 1
1.1 are equipped with dustproof construction and sealing structure, and the dustproof construction is located at the top open part of centre bore 1.1.
The dustproof construction is equipped with a dustband 4, and the dustband 4 is embedded in first annular recessed in centre bore 1.1
In slot, the inner wall of the dustband 4 and the outer wall of pump core 2 offset.The sealing structure is equipped with a sealing ring 5, the sealing
Circle 5 is embedded in the second annular groove in centre bore 1.1, the upper and lower part of the inner wall of the sealing ring 5 with pump core 2
Outer wall offsets, and the sealing ring 5 is y-type seal ring, between having between the middle part of the inner wall of the sealing ring 5 and the outer wall of pump core 2
Away from.
The top of the pump core 2 is equipped with the annular protrusion 2.1 connecting with spring cup, and axial limiting work can be played to spring cup
With.The top of the pump block 1 is equipped with outer-hexagonal 1.2, easy disassembly pump block 1.The top surface of the first annular groove and pump block 1 connects
It is logical.
Suction pressure oil compound and cooperation hydraulic oil pump and oil cylinder form a set of hydraulic system, and hydraulic system is by the first check valve, the
Two check valves, pressure-relief valve, overflow valve and oil circuit composition；By a pulling force of pump core when oil suction, the inner cavity chamber of pump block draws into one
First check valve is sucted closing by oil circuit, while second one-way valve suction is opened by a suction, and the oil in fuel tank passes through oil circuit quilt
It is drawn onto the inner cavity chamber of pump block.When pressure oil, by a pressure to pump core top end face, by extruding to pump core, pump block
The indoor hydraulic oil in inner cavity closes second one-way valve by oil circuit, while the first check valve is opened, and comes oil by oil circuit
Cylinder.
When the pressure in oil circuit is more than the setting pressure of overflow valve, overflow valve is opened, hydraulic oil flows through overflow valve and returns to
Fuel tank.
When needing emptying, pressure-relief valve is opened manually, hydraulic oil is returned directly to fuel tank.
Claims (6)
1. a kind of suction forced oil device of hoistable platform hydraulic oil pump, including pump block, pump core and valve plate, the pump block is equipped with center
Hole, the bottom outer wall of the pump block are equipped with external screw thread, and the valve plate is equipped with threaded hole, and the external screw thread of the pump block is tightened on valve
In the threaded hole of plate and the bottom surface of pump block is flushed with the bottom surface of valve plate, and the underclearance of the pump core cooperates the centre bore in pump block
Interior, the top of the pump core stretches out in outside pump block, and the centre bore of the lower part of the pump core and pump block is equipped with dustproof construction and close
Seal structure, the dustproof construction are located at the top open part of centre bore.
2. a kind of suction forced oil device of hoistable platform hydraulic oil pump according to claim 1, it is characterised in that: described dust-proof
Structure is equipped with a dustband, and the dustband is embedded in the first annular groove in centre bore, the inner wall of the dustband
It offsets with the outer wall of pump core.
3. a kind of suction forced oil device of hoistable platform hydraulic oil pump according to claim 1, it is characterised in that: the sealing
Structure is equipped with a sealing ring, and the sealing ring is embedded in the second annular groove in centre bore, the inner wall of the sealing ring
Upper and lower part offset with the outer wall of pump core, the sealing ring be y-type seal ring, the middle part of the inner wall of the sealing ring with
There is spacing between the outer wall of pump core.
4. a kind of suction forced oil device of hoistable platform hydraulic oil pump according to claim 1, it is characterised in that: the pump core
Top be equipped with the annular protrusion that connect with spring cup.
5. a kind of suction forced oil device of hoistable platform hydraulic oil pump according to claim 1, it is characterised in that: the pump block
Top be equipped with outer-hexagonal.
6. a kind of suction forced oil device of hoistable platform hydraulic oil pump according to claim 2, it is characterised in that: described first
Annular groove is connected to the top surface of pump block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821129214.9U CN208648643U (en) | 2018-07-17 | 2018-07-17 | A kind of suction forced oil device of hoistable platform hydraulic oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821129214.9U CN208648643U (en) | 2018-07-17 | 2018-07-17 | A kind of suction forced oil device of hoistable platform hydraulic oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208648643U true CN208648643U (en) | 2019-03-26 |
Family
ID=65784674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821129214.9U Active CN208648643U (en) | 2018-07-17 | 2018-07-17 | A kind of suction forced oil device of hoistable platform hydraulic oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208648643U (en) |
-
2018
- 2018-07-17 CN CN201821129214.9U patent/CN208648643U/en active Active
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