CN201665027U - Overload protection device of press machine - Google Patents
Overload protection device of press machine Download PDFInfo
- Publication number
- CN201665027U CN201665027U CN 201020149198 CN201020149198U CN201665027U CN 201665027 U CN201665027 U CN 201665027U CN 201020149198 CN201020149198 CN 201020149198 CN 201020149198 U CN201020149198 U CN 201020149198U CN 201665027 U CN201665027 U CN 201665027U
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- oil
- oil cylinder
- ball bowl
- circle
- stepped
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Abstract
The utility model relates to an overload protection device of a press machine. The press machine comprises a crank shaft, a ball-head connecting rod and a sliding block, wherein the crank shaft is connected with the sliding block by the ball-head connecting rod by connecting parts; the connecting parts include an oil cylinder, a lower ball bowl, a top plate, a base, an air source and a hydraulic oil source; the oil cylinder is arranged in the sliding block and is internally provided with at least two stepped holes of a first stepped hole and a second stepped hole from top to bottom; the base is fixedly connected at the opening of the bottom end of the oil cylinder for closing the opening of the bottom end of the oil cylinder; a clearance for containing hydraulic oil is arranged between the lower ball bowl and the top plate; the lower part of a lower ball bowl body is provided with a stepped circle; the stepped surface at the upper end of the stepped circle and the stepped surface between the first stepped hole and the second stepped hole on the oil cylinder are glued to form the liquid sealing; a circle of neck groove is arranged near the stepped surface at the upper end of the lower ball bowl body; an oil inlet, an oil discharge passage and an air inlet are arranged on the wall of the oil cylinder; the air inlet and the oil inlet are communicated with the clearance; and the oil discharge passage is communicated with the neck groove. Therefore, the overload protection device plays a role of protection.
Description
Technical field
The utility model relates to the technical field of forcing press, relates in particular to a kind of hydraulic pressure overload protective device of forcing press.
Background technology
In the existing forcing press hydraulic pressure overload protective technology; when the suffered external pressure of bulb during greater than the oil cylinder internal pressure; in-oil cylinder hydraulic oil passes in the outside high-pressure oil pump by a high-pressure hose, relies on pressure to promote oil pump piston and moves, thereby hydraulic oil is let out in the oil pump fuel tank.This structure oil cylinder pressure release speed is subjected to the influence of the factors such as expansion, oil pump piston translational speed and drain tap area of high-pressure hose caliber size and flexible pipe, can not the moment pressure release, and parts moment of build-up of pressure machine is impaired, tears etc. as crankshaft breakdown, fuselage aditus laryngis.
Summary of the invention
The utility model provides a kind of pressure release in time, reliably at above problem, and can avoid the overload protection arrangement of the forcing press of part of appliance damage.
The technical solution of the utility model is: described forcing press comprises bent axle, ball head connecting rod and slide block, and described ball head connecting rod links to each other bent axle by attaching parts with slide block, and described attaching parts comprise oil cylinder, following ball bowl, top board, base, source of the gas and hydraulic oil source;
Described oil cylinder is located in the described slide block, is provided with at least two stepped holes in the cylinder block from top to bottom, is respectively the first step hole of the axial liquid sealing and the ball bowl body that is slidingly matched down and the second step hole of the axial liquid sealing and the top board body that is slidingly matched; Described base is fixedly connected on oil cylinder bottom end opening place, with the bottom end opening sealing of described oil cylinder; Has the gap that holds hydraulic oil between described ball bowl down and the described top board;
The described bottom of ball bowl body down is provided with the step circle, and the step surface on the upper end step face of described step circle and the described oil cylinder between first step hole and the second step hole can form liquid sealing when fitting; Described ball bowl body down is provided with a circle neck groove near described upper end step face place;
The casing wall of described oil cylinder is provided with oil-in, draining road and air inlet; Described air inlet and oil-in are communicated with described gap; Described draining road is communicated with described neck groove.
Described slide block is provided with oil storage tank, and described oil cylinder is provided with drain tap, and described drain tap links to each other described draining road with oil storage tank.
The upper edge of described air inlet corresponding described base top surface on short transverse; The bottom surface of described top board is provided with a circle chamfering.
The utility model has changed the positive drive pattern between bent axle, connecting rod, the slide block in the past, is provided with an overload protection arrangement that is made of oil cylinder, following ball bowl, top board, base etc. between connecting rod and slide block.It is when operate as normal; still keep the positive drive pattern; in case overload occurs; be that the load that bears of ball head connecting rod is when surpassing certain default load; can " throw off the positive drive ring "; give ball head connecting rod certain protection stroke, bulb is moved down, protected the main parts size (as bent axle, slide block, fuselage etc.) of lathe injury-free.Wherein playing the upper end step face of ball bowl and the step surface of oil cylinder, is the tight sturdy sealing surface that obtains by underhand polish, and both have the liquid sealing effect when fitting.During operate as normal, the pressure of ball head connecting rod is by ball bowl, hydraulic oil, top board, base pass to slide block down; When the suffered power of ball head connecting rod during greater than in-oil cylinder default oil pressure, the composition surface of following ball bowl and oil cylinder will be thrown off, and hydraulic oil moment overflows from the composition surface by the neck groove, and flows out pressure release from oil-out.The utility model exquisite composition, the reliability height, compact conformation can play great protective effect to equipment.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1 is ball head connecting rod among the figure, the 2nd, and slide block, the 3rd, oil cylinder, the 4th, following ball bowl, the 5th, top board, the 6th, base, the 7th, oil storage tank, the 8th, the mouth of changing oil, the 9th, chamfering, the 10th, air inlet, the 11st, drain tap, the 12nd, oil-in, the 13rd, draining road, the 14th, binding face, the 15th, neck groove, the 16th, gap.
The specific embodiment
The utility model is as shown in Figure 1: described forcing press comprises bent axle, ball head connecting rod 1 and slide block 2, described ball head connecting rod 1 links to each other bent axle by attaching parts with slide block 2, described attaching parts comprise oil cylinder 3, following ball bowl 4, top board 5, base 6, source of the gas and hydraulic oil source;
Described oil cylinder 3 is located in the described slide block 2, is provided with at least two stepped holes from top to bottom in oil cylinder 3 cylinder bodies, is respectively the first step hole of the axial liquid sealing and ball bowl 4 bodies that are slidingly matched down and the second step hole of the axial liquid sealing and top board 5 bodies that are slidingly matched; Described base 6 is fixedly connected on oil cylinder 3 bottom end opening places, with the bottom end opening sealing of described oil cylinder 3; Has the gap 16 that holds hydraulic oil between described ball bowl 4 down and the described top board 5;
The described bottom of ball bowl 4 bodies down is provided with the step circle, and the step surface on the upper end step face of described step circle and the described oil cylinder 3 between first step hole and the second step hole is the binding face 14 that can form liquid sealing when fitting; Described ball bowl 4 bodies down are provided with a circle neck groove 15 near described upper end step face place;
The casing wall of described oil cylinder 3 is provided with oil-in 12, draining road 13 and air inlet 10; Described air inlet 10 and oil-in 12 are communicated with described gap 16; Described draining road 13 is communicated with described neck groove 15.
Described slide block 2 is provided with oil storage tank 7, and described oil cylinder 3 is provided with drain tap 11, and described drain tap 11 links to each other described draining road 13 with oil storage tank 7.For repairing, change oil, on slide block 2, also need offer be communicated with oil storage tank 7 change oil mouthfuls 8.
The upper edge of described air inlet 10 corresponding described base 6 end faces on short transverse; The bottom surface of described top board 5 is provided with a circle chamfering 9.When this is convenient to air inlet, with top board 5 base 6 that blows off.
During the utility model work, from air inlet 10 air inlets, gas upwards pushes up top board 5, thereby promotes ball bowl 4 down, and the upper end step face of ball bowl 4 and the step surface of oil cylinder 3 are fitted.Then, advance hydraulic oil from oil-in 12 by hydraulic oil source, hydraulic oil will be filled between top board 5 and the following ball bowl 4, make top board 5 and play ball bowl 4 disengagements, and the step surface of ball bowl 4 and oil cylinder 3 composition surfaces are fitted tightly, and binding face 14 has sealing effectiveness; When external pressure that ball head connecting rod 1 is subjected to greater than oil cylinder 3 in during the pressure of (the default oil between following ball bowl 4 and the top board 5 in the gap 16), following ball bowl 4 is thrown off with the binding face of oil cylinder 3, because pressure release area is big, hydraulic oil can overflow by neck groove 15 from binding face moment, and by in the oil storage tank 7 in draining road 13, the drain tap 11 inflow slide bodies 2.Because the hydraulic oil pressure release, thereby ball head connecting rod 1 is moved down, protect other parts of lathe not to be subjected to the damage of instantaneous pressure.
Claims (3)
1. the overload protection arrangement of forcing press, described forcing press comprises bent axle, ball head connecting rod and slide block, described ball head connecting rod links to each other bent axle by attaching parts with slide block, it is characterized in that, described attaching parts comprise oil cylinder, following ball bowl, top board, base, source of the gas and hydraulic oil source;
Described oil cylinder is located in the described slide block, is provided with at least two stepped holes in the cylinder block from top to bottom, is respectively the first step hole of the axial liquid sealing and the ball bowl body that is slidingly matched down and the second step hole of the axial liquid sealing and the top board body that is slidingly matched; Described base is fixedly connected on oil cylinder bottom end opening place, with the bottom end opening sealing of described oil cylinder; Has the gap that holds hydraulic oil between described ball bowl down and the described top board;
The described bottom of ball bowl body down is provided with the step circle, and the step surface on the upper end step face of described step circle and the described oil cylinder between first step hole and the second step hole can form liquid sealing when fitting; Described ball bowl body down is provided with a circle neck groove near described upper end step face place;
The casing wall of described oil cylinder is provided with oil-in, draining road and air inlet; Described air inlet and oil-in are communicated with described gap; Described draining road is communicated with described neck groove.
2. the overload protection arrangement of forcing press according to claim 1 is characterized in that, described slide block is provided with oil storage tank, and described oil cylinder is provided with drain tap, and described drain tap links to each other described draining road with oil storage tank.
3. the overload protection arrangement of forcing press according to claim 1 is characterized in that, the upper edge of described air inlet corresponding described base top surface on short transverse; The bottom surface of described top board is provided with a circle chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020149198 CN201665027U (en) | 2010-04-02 | 2010-04-02 | Overload protection device of press machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020149198 CN201665027U (en) | 2010-04-02 | 2010-04-02 | Overload protection device of press machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201665027U true CN201665027U (en) | 2010-12-08 |
Family
ID=43265979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020149198 Expired - Fee Related CN201665027U (en) | 2010-04-02 | 2010-04-02 | Overload protection device of press machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201665027U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669657A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Press machine |
| CN105291472A (en) * | 2015-12-09 | 2016-02-03 | 四川内江鸿强机床有限公司 | Hydraulic overload protection structure of press machine |
| CN108380786A (en) * | 2018-04-12 | 2018-08-10 | 青岛理工大学 | Forcing press Intelligent overload protection device and control method |
| CN108856618A (en) * | 2018-07-06 | 2018-11-23 | 青岛理工大学 | Crank press Intelligent energy-saving overload protection arrangement and overload protection method |
| CN113478897A (en) * | 2021-06-22 | 2021-10-08 | 浙江斯特隆科技有限公司 | Implosion type overload protection device and method for press |
-
2010
- 2010-04-02 CN CN 201020149198 patent/CN201665027U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669657A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Press machine |
| CN105291472A (en) * | 2015-12-09 | 2016-02-03 | 四川内江鸿强机床有限公司 | Hydraulic overload protection structure of press machine |
| CN108380786A (en) * | 2018-04-12 | 2018-08-10 | 青岛理工大学 | Forcing press Intelligent overload protection device and control method |
| CN108380786B (en) * | 2018-04-12 | 2024-01-19 | 青岛理工大学 | Intelligent overload protection device of press and control method |
| CN108856618A (en) * | 2018-07-06 | 2018-11-23 | 青岛理工大学 | Crank press Intelligent energy-saving overload protection arrangement and overload protection method |
| CN108856618B (en) * | 2018-07-06 | 2023-08-11 | 青岛理工大学 | Intelligent energy-saving overload protection device and overload protection method for crank press |
| CN113478897A (en) * | 2021-06-22 | 2021-10-08 | 浙江斯特隆科技有限公司 | Implosion type overload protection device and method for press |
| WO2022267214A1 (en) * | 2021-06-22 | 2022-12-29 | 浙江斯特隆科技有限公司 | Implosion type overload protection device and method for machine press |
| TWI819366B (en) * | 2021-06-22 | 2023-10-21 | 大陸商浙江斯特隆科技有限公司 | Implosion overload protection device for presses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANGZHOU METALFORMING MACHINE CO., LTD. Free format text: FORMER NAME: YANGZHOU FORGING MACHINE-TOOLS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 225009 No. 200, Ji'an Road, Hanjiang Industrial Park, Jiangsu, Yangzhou Patentee after: Yangzhou Forging Machine Tool Co., Ltd. Address before: 225009 No. 200, Ji'an Road, Hanjiang Economic Development Zone, Yangzhou, Jiangsu Patentee before: Yangzhou Metalforming Machine Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |