CN204082179U - Light-duty suspension type of force plunger hydraulic prop - Google Patents
Light-duty suspension type of force plunger hydraulic prop Download PDFInfo
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- CN204082179U CN204082179U CN201320743826.8U CN201320743826U CN204082179U CN 204082179 U CN204082179 U CN 204082179U CN 201320743826 U CN201320743826 U CN 201320743826U CN 204082179 U CN204082179 U CN 204082179U
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- oil cylinder
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- handle body
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Abstract
The utility model discloses a kind of light-duty suspension type of force plunger hydraulic prop, belong to hydraulic prop for mine technical field.The utility model comprises oil cylinder and is located at in-oil cylinder post alive, handle body is provided with between cylinder ports and post alive, the bottom of oil cylinder is provided with base, described oil cylinder with seal I is all housed between handle body, between oil cylinder with base and is connected steel wire, the rectangle connecting steel wire to be section be rectangle connects steel wire, connection steel wire between oil cylinder and handle body is arranged in the cannelure that formed by handle body link slot and oil cylinder link slot I, and the degree of depth of oil cylinder link slot I is less than the degree of depth of handle body link slot; Connection steel wire between oil cylinder and base is arranged in the cannelure that formed by base link slot and oil cylinder link slot II, and the degree of depth of oil cylinder link slot II is less than the degree of depth of base link slot.The utility model ensure that the cylinder block intensity connecting steel wire place, makes oil cylinder can adopt thinner high-strength material, effective weight reduction.
Description
Technical field
The utility model relates to a kind of piston type single hydraulic cylinder, belongs to mining equiment technical field.
Background technology
Piston type single hydraulic cylinder has the superperformance that supporting capacity is large, offset load resistance is strong, impulse stroke is large, the scope of application is wide, is widely used in advance support and the temporary lining in the high-grade mechanization conventional face in colliery and tunnel.Because digging workman in colliery will work under the space of hydraulic prop supporting, the intensity of hydraulic prop must have enough safety factor.According to safety of coal mines mark MT112(production licence) requirement, hydraulic prop must can bear the working resistance of 2 times, can also normally use.In using, hydraulic prop not only wants the additional resistance that can bear 2 times, also will bear the pressure of the internal liquid of 60-80MaP.In the major part of existing hydraulic prop, post of living, oil cylinder material are 27SiMn steel, about yield strength 800MPa, make the hydraulic prop heaviness produced, install, carry inconvenience, consume a large amount of muscle power of workman.Thus coal miner be badly in need of a kind of lightweight, be convenient to the suspension type of force plunger hydraulic prop installed and used.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the utility model provides a kind of light-duty suspension type of force plunger hydraulic prop, structure design ensure that the cylinder block intensity connecting steel wire place, makes oil cylinder can adopt thinner high-strength material, effective weight reduction.
The utility model is achieved by the following technical solution: a kind of light-duty suspension type of force plunger hydraulic prop, it comprises oil cylinder and is located at in-oil cylinder post alive, top cover and seal cover assembly are equipped with in the top of post alive, handle body is provided with between cylinder ports and post alive, the bottom of oil cylinder is provided with base, the back-moving spring be connected between described seal cover assembly and base is also housed in described post alive, between described oil cylinder and handle body, seal I is all housed between oil cylinder with base and is connected steel wire, the rectangle of described connection steel wire to be section be rectangle connects steel wire, connection steel wire between described oil cylinder and handle body is arranged in the cannelure that formed by handle body link slot and oil cylinder link slot I, the degree of depth of oil cylinder link slot I is less than the degree of depth of handle body link slot, connection steel wire between described oil cylinder and base is arranged in the cannelure that formed by base link slot and oil cylinder link slot II, and the degree of depth of oil cylinder link slot II is less than the degree of depth of base link slot.
The degree of depth of described oil cylinder link slot I is 0.5 times of the degree of depth of handle body link slot, and the degree of depth of described oil cylinder link slot II is 0.5 times of the degree of depth of base link slot.
Between described handle body and post alive, guide ring, y-type seal ring and dust ring are housed.
Described seal cover assembly and live between post seal II is housed, described top cover, living between post and seal cover assembly is connected by elastic cylindrical pin.
The beneficial effects of the utility model are: as shown in Figure 4, the section of steel wire is connected for circular in prior art, in order to guaranteed strength, interface should to ensure in the thickness of circle namely circular centre, therefore oil cylinder is necessary for the same size of symmetry with the degree of depth of the link slot of handle body, base.Connect steel wire according to circle to connect, after oil cylinder thickness reduces, the degree of depth of the link slot on oil cylinder still must adopt symmetrical size, because the link slot degree of depth on cylinder block is large, remaining effective bearing load section is too small, very easily causes the stress of this section to concentrate and destroys.The utility model changes connection steel wire into rectangular wire, and the link slot on the link slot on oil cylinder and handle body, base adopts asymmetric size, on oil cylinder the degree of depth of link slot be about handle body, about 0.5 times of the base link slot degree of depth.The utility model effectively can reduce the link slot degree of depth on oil cylinder, avoids the concentrated destruction of stress that oil cylinder causes because the link slot degree of depth is excessive.Solve the difficult problem reducing connecting portion intensity because the link slot degree of depth is excessive, and the Method compare such as to strengthen, be threaded and have more good manufacturability, simple and easy realization with welding.Thus structure of the present utility model can adopt superior alloy steel to replace current material, effectively reduces the wall thickness of part, reduces weight, realize hydraulic prop lightness.Reduce labour intensity, strengthen labor safety.
Accompanying drawing explanation
According to drawings and embodiments the utility model is further illustrated below.
Fig. 1 is the utility model structural representation;
Fig. 2 is the A place partial enlarged drawing of Fig. 1;
Fig. 3 is the B place partial enlarged drawing of Fig. 1;
Fig. 4 is that circular cross-section of the prior art connects steel wire mounting means schematic diagram.
In figure, 1, top cover; 2, seal cover assembly; 3, to live post; 4, handle body; 4-1, handle body link slot; 5, oil cylinder; 5-1, oil cylinder link slot I; 5-2, oil cylinder link slot II; 6, back-moving spring; 7, base; 7-1, base link slot; 8, seal I; 9, steel wire is connected; 10, guide ring; 11, y-type seal ring; 12, dust ring; 13, seal II; 14, elastic cylindrical pin; A1, the handle body link slot degree of depth; A2, the base link slot degree of depth; B1, oil cylinder link slot I degree of depth; B2, oil cylinder link slot II degree of depth.
Detailed description of the invention
As Fig. 1, Fig. 2, the light-duty suspension type of force plunger hydraulic prop of one shown in Fig. 3, the post alive 3 that it comprises oil cylinder 5 and is located in oil cylinder 5, top cover 1 and seal cover assembly 2 are equipped with in the top of post 3 alive, handle body 4 is provided with between cylinder ports and post 3 alive, the bottom of oil cylinder 5 is provided with base 7, the back-moving spring 6 be connected between described seal cover assembly 2 and base 7 is also housed in described post alive 3, between described oil cylinder 5 and handle body 4, seal I 8 is all housed between oil cylinder 5 with base 7 and is connected steel wire 9, the rectangle of described connection steel wire 9 to be sections be rectangle connects steel wire, connection steel wire 9 between described oil cylinder 5 and handle body 4 is arranged in the cannelure that formed by handle body link slot 4-1 and oil cylinder link slot I 5-1, the degree of depth of oil cylinder link slot I 5-1 is less than the degree of depth of handle body link slot 4-1, connection steel wire 9 between described oil cylinder 5 and base 7 is arranged in the cannelure that formed by base link slot 7-1 and oil cylinder link slot II 5-2, and the degree of depth of oil cylinder link slot II 5-2 is less than the degree of depth of base link slot 7-1.
The degree of depth of described oil cylinder link slot I 5-1 is 0.5 times of the degree of depth of handle body link slot 4-1, and the degree of depth of described oil cylinder link slot II 5-2 is 0.5 times of the degree of depth of base link slot 7-1.
Between described handle body 4 and post 3 alive, guide ring 10, y-type seal ring 11 and dust ring 12 are housed.
Described seal cover assembly 2 and live between post 3 seal II 13 is housed, described top cover 1, living between post 3 and seal cover assembly 2 is connected by elastic cylindrical pin 14.
As shown in Figure 4, the section connecting steel wire in prior art is for circular, and in order to guaranteed strength, interface should ensure the centre namely circular in the thickness of circle, therefore oil cylinder is necessary for the same size of symmetry with the degree of depth of the link slot of handle body, base.Connect steel wire according to circle to connect, after oil cylinder thickness reduces, the degree of depth of the link slot on oil cylinder still must adopt symmetrical size, because the link slot degree of depth on cylinder block is large, remaining effective bearing load section is too small, very easily causes the stress of this section to concentrate and destroys.The utility model changes connection steel wire into rectangular wire, because square-section thickness is identical, interface is in where uniform intensity sample.Link slot on link slot on oil cylinder and handle body, base adopts asymmetric size, on oil cylinder the degree of depth of link slot be about handle body, about 0.5 times of the base link slot degree of depth.The utility model effectively can reduce the link slot degree of depth on oil cylinder, avoids the concentrated destruction of stress that oil cylinder causes because the link slot degree of depth is excessive.Solve the difficult problem reducing connecting portion intensity because the link slot degree of depth is excessive, and the Method compare such as to strengthen, be threaded and have more good manufacturability, simple and easy realization with welding.Only need to mill out hole slot with the link slot place on handle body, base at oil cylinder, penetrate for being connected steel wire.Thus the structure of the present utility model 27SiMn steel that superior alloy steel can be adopted to replace usually adopting through special special Technology for Heating Processing process, hot-rolled pipe id tolerance is large and large through modified quenching change in size, cause that link slot section variation is large affects intensity, the utility model adopts rectangle to connect steel wire, link slot on link slot on oil cylinder and handle body, base adopts asymmetric size, can effective head it off.Mechanical performance raising more than 30% compared with 27SiMn steel of the superior alloy steel after this Technology for Heating Processing process, yield strength > 1050MPa, make to live post, oil cylinder wall thickness can obviously thinning more than 20%, reduce weight, realize hydraulic prop lightness.Reduce labour intensity, strengthen labor safety.
Claims (4)
1. a light-duty suspension type of force plunger hydraulic prop, it comprises oil cylinder (5) and is located at the post alive (3) in oil cylinder (5), top cover (1) and seal cover assembly (2) are equipped with in the top of post (3) alive, handle body (4) is provided with between cylinder ports and post (3) alive, the bottom of oil cylinder (5) is provided with base (7), the back-moving spring (6) be connected between described seal cover assembly (2) and base (7) is also housed in described post alive (3), between described oil cylinder (5) and handle body (4), seal I (8) is all housed between oil cylinder (5) with base (7) and is connected steel wire (9), it is characterized in that: the rectangle of described connection steel wire (9) to be section be rectangle connects steel wire, connection steel wire (9) between described oil cylinder (5) and handle body (4) is arranged in the cannelure that formed by handle body link slot (4-1) and oil cylinder link slot I (5-1), the degree of depth of oil cylinder link slot I (5-1) is less than the degree of depth of handle body link slot (4-1), connection steel wire (9) between described oil cylinder (5) and base (7) is arranged in the cannelure that formed by base link slot (7-1) and oil cylinder link slot II (5-2), and the degree of depth of oil cylinder link slot II (5-2) is less than the degree of depth of base link slot (7-1).
2. light-duty suspension type of force plunger hydraulic prop according to claim 1, it is characterized in that: the degree of depth of described oil cylinder link slot I (5-1) is 0.5 times of the degree of depth of handle body link slot (4-1), the degree of depth of described oil cylinder link slot II (5-2) is 0.5 times of the degree of depth of base link slot (7-1).
3. light-duty suspension type of force plunger hydraulic prop according to claim 1, is characterized in that: between described handle body (4) and post (3) alive, guide ring (10), y-type seal ring (11) and dust ring (12) are housed.
4. light-duty suspension type of force plunger hydraulic prop according to claim 1, it is characterized in that: described seal cover assembly (2) and live between post (3) seal II (13) is housed, described top cover (1), to live between post (3) and seal cover assembly (2) by elastic cylindrical pin (14) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743826.8U CN204082179U (en) | 2013-11-21 | 2013-11-21 | Light-duty suspension type of force plunger hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743826.8U CN204082179U (en) | 2013-11-21 | 2013-11-21 | Light-duty suspension type of force plunger hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082179U true CN204082179U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743826.8U Expired - Fee Related CN204082179U (en) | 2013-11-21 | 2013-11-21 | Light-duty suspension type of force plunger hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082179U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050279A (en) * | 2016-07-31 | 2016-10-26 | 常州天泰矿山设备制造有限公司 | Maintenance-free neutral water medium single prop |
| CN108843351A (en) * | 2018-08-07 | 2018-11-20 | 兖矿东华重工有限公司 | A kind of hydraulic prop |
-
2013
- 2013-11-21 CN CN201320743826.8U patent/CN204082179U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050279A (en) * | 2016-07-31 | 2016-10-26 | 常州天泰矿山设备制造有限公司 | Maintenance-free neutral water medium single prop |
| CN108843351A (en) * | 2018-08-07 | 2018-11-20 | 兖矿东华重工有限公司 | A kind of hydraulic prop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20151121 |
|
| EXPY | Termination of patent right or utility model |