CN202707470U - Concrete piston, pumping system and concrete pump - Google Patents
Concrete piston, pumping system and concrete pump Download PDFInfo
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- CN202707470U CN202707470U CN 201220305614 CN201220305614U CN202707470U CN 202707470 U CN202707470 U CN 202707470U CN 201220305614 CN201220305614 CN 201220305614 CN 201220305614 U CN201220305614 U CN 201220305614U CN 202707470 U CN202707470 U CN 202707470U
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- seal
- concrete piston
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Abstract
The utility model discloses a concrete piston which comprises a piston body (1), wherein a sealing body (4) is arranged on the periphery of the piston body (1), which is close to the front end, along the circumferential direction, a dustproof ring (6) is arranged on the periphery of the piston body (1), which is close to the rear end, along the circumferential direction, at least two guide rings (5) are arranged on the periphery of the piston body (1) between the rear end of the sealing body (4) and the front end of the dustproof ring (6) along the circumferential direction, and a preset distance is spaced by two adjacent guide rings (5) on the axial direction of the piston body (1). According to the concrete pump, the guide distance can be effectively increased, the real-time lubrication can be carried out, and operation resistance and abrasion are reduced; and by adopting a framework structure, the axial size of the sealing body is reduced. In addition, the utility model also discloses a pumping system and a concrete pump.
Description
Technical field
The utility model relates to the concrete pumping field, more specifically, relates to a kind of concrete piston, pumping system and a kind of concrete pump.
Background technique
Concrete pump is a kind of with the equipment of concrete conveyance to the construction engineering desired location.Pumping system is the core component of concrete pump, and it is the push-and-pull alternating movement by oil cylinder, and hydraulic energy is converted to mechanical energy, makes concrete overcome pipe resistance and is transported to the cast position.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of the pumping system of concrete pump in the prior art; Fig. 2 is the structural representation of the concrete piston of pumping system among Fig. 1.
As shown in Figure 1, described pumping system comprises master cylinder 1', carries the parts (wherein not shown among hopper, S pipe valve, reversing arrangement and stirring apparatus Fig. 1) such as cylinder 2', water tank 3', concrete piston 4', hopper, S pipe valve, reversing arrangement and stirring apparatus, concrete piston 4' is connected with the piston rod of master cylinder 1', under the effect of master cylinder 1', move reciprocatingly, concrete piston 4' carry cylinder 2 ' in advance, another concrete piston 4' carry cylinder 2 ' in retreat; Carry the outlet of cylinder 2' to be communicated with hopper and S pipe valve, and the S pipe valve is communicated with discharge port; During the pumped concrete earth material, under master cylinder 1' effect, a concrete piston 4' advances, and pumps thereby will carry concrete among the cylinder 2' to push the S pipe valve, and then is pumped in the delivery pipe; Another concrete piston 4' retreats, thus with the concrete in the hopper suck to carry cylinder 2 ' in.When finishing an above-mentioned pump cycles, control system is sent signal, and two master cylinder 1' commutations are namely gone up the concrete piston 4' that retreats in the one-period and advanced, and the concrete piston 4' that advances retreats; While is two conveying cylinder 2' exchange mode of communicating under the effect of the oscillating oil cylinder of reversing arrangement, namely go up in the one-period, the conveying cylinder 2' that is communicated with the S pipe valve changes into hopper and being communicated with, and the conveying cylinder 2' that is communicated with hopper changes the pipe valve with S into, thereby realizes concrete uninterrupted pumping.
As shown in Figure 2, in above-mentioned pumping system, concrete piston 4' comprises the parts such as piston body 41', guide ring 42', elastic sealed body 43', front pressuring plate 44', piston brace rod 45', dust ring 46', fastening screw trip bolt 47'.Wherein, guide ring is single, and the guiding of guide ring distance is shorter, and guidance capability is relatively poor, and as increasing the guidance capability of guide ring, only having increases the length of guide ring on axially, but can increase again like this running resistance of concrete piston.
There is following technical problem in above-mentioned prior art: concrete piston guide ability, there are the situations such as frictional heat, eccentric wear, and cause the lip premature failure.
In view of this, how concrete piston in the prior art being made improvement, thereby improve the working life of its sealing configuration, is the problem that those skilled in the art need solution badly.
The model utility content
The technical problems to be solved in the utility model is for providing a kind of concrete piston, and this concrete piston can improve concrete piston guide ability, thereby improves the working life of concrete piston.Another technical problem that will solve of the utility model is for providing a kind of pumping system that comprises this concrete piston.Moreover another technical problem that will solve of the utility model is for providing a kind of concrete pump that comprises this pumping system.
For solving the problems of the technologies described above, the utility model provides a kind of concrete piston, comprise piston only, described piston only is being circumferentially with seal near edge on the periphery of front end, described piston only is being circumferentially with dust ring near edge on the periphery of rear end, on the periphery of the described piston only between the front end of the rear end of described seal and dust ring along being circumferentially with at least two guide rings, two adjacent guide rings piston only axially on the interval intended distance.
In technique scheme, outer circumferential face at piston body arranges at least two guide rings, two adjacent guide rings piston only axially on the interval intended distance, like this can be so that the increase of guiding distance, steering capability improves, and can farthest reduce the possibility that eccentric wear occurs in running the concrete piston, prolongs the working life of concrete piston sealing body, and, the running resistance of increase concrete piston that also can be not excessive.
Described guide ring is two, and the front end of one of them guide ring contacts with the rear end of described seal, and the rear end of another guide ring contacts with the front end of described dust ring.
In technique scheme, can farthest increase the guiding distance, reduce the possibility that eccentric wear occurs the concrete piston in running, prolong the working life of concrete piston sealing body.
The outer circumferential face of described guide ring is along circumferentially offering oil groove, be provided with shoe cream room in the described piston only, piston only is provided with the pouring orifice that is communicated to shoe cream room, the pouring orifice outer end is provided with plug cock, and described shoe cream room is communicated to the outer circumferential face of the described piston only between described two guide rings by the oil duct that is arranged at described piston only.
In technique scheme, lubricant oil in the shoe cream room can flow on the outer circumferential face of piston only through oil duct, the concrete piston is in running, lubricant oil can enter in the oil groove on the guide ring outer circumferential face, has realized guide ring is lubricated in real time, can reduce the running resistance of concrete piston in carrying cylinder, reduce wearing and tearing and the heating of seal on the concrete piston, improve the working life of concrete piston, reduce production costs, improve productivity effect.
The edge is circumferentially with groove on the periphery of the described piston only between described two guide rings.
In technique scheme, groove can play the loss of weight effect, has reduced the weight of concrete piston, saves the cost of material of concrete piston.
Described oil duct is communicated with described shoe cream room and described groove.
In technique scheme, groove can also play the effect of storage and distribute lubrication oil, and lubricant oil is evenly distributed on the outer circumferential face of concrete piston.
Described piston only is comprised of piston brace rod, front pressuring plate, piston body between described piston brace rod and described front pressuring plate, and described piston brace rod and described front pressuring plate are connected by screw and described piston body is clamping between described piston brace rod and described front pressuring plate.Piston only adopts a plurality of parts to form, and is convenient to dismounting, can only change the parts of damage during maintenance, and maintenance cost is low.
Described seal is comprised of rigid backbone and elastomer, and it is outside that described elastomer is coated on described rigid backbone, and described rigid backbone is clamping between described piston body and described front pressuring plate.After adopting rigid backbone, can guarantee that not only seal has enough structural strengths, simultaneously, the axial dimension of seal can be done littlely, has reduced the weight of concrete piston, saves the cost of production of concrete piston.
Described rigid backbone adopts steel to make, and described elastomer adopts polyurethane or quality of rubber materials to make.Skeleton adopts steel to make, and can improve the structural strength of seal; Elastomer adopts polyurethane or quality of rubber materials to make, and can guarantee that seal has suitable elasticity, like this, can guarantee that on the one hand the resistance when the concrete piston moves is little in carrying cylinder; On the other hand, can guarantee that seal plays good sealing effect.
On the other hand, the utility model also provides a kind of pumping system, comprises the conveying cylinder, also comprises aforesaid concrete piston, and described concrete piston is located in the described conveying cylinder.
On the one hand, the utility model also provides a kind of concrete pump again, and described concrete pump comprises aforesaid pumping system.
Like this, can be so that piston body to be more reliable with being connected of piston brace rod, front pressuring plate, reduce trouble guarantees to produce and carries out continuously.
The technological scheme that the utility model provides, by two guide rings are set at the piston body two ends, so that the guiding distance increases, improved the steering capability of concrete piston, can reduce the possibility that eccentric wear occurs the concrete piston when carrying the cylinder operation, nor the running resistance of the excessive increase concrete piston of meeting; The utility model has been realized guide ring is lubricated in real time, can reduce the running resistance of concrete piston in carrying cylinder, reduces wearing and tearing and the heating of seal on the concrete piston, improves the working life of concrete piston, reduces production costs, and improves productivity effect; Seal adopts skeletal structure, can guarantee that not only seal has enough structural strengths, and simultaneously, the axial dimension of seal can be done littlely, has reduced the weight of concrete piston, saves the cost of production of concrete piston.
Description of drawings
Fig. 1 is the structural representation of the pumping system of concrete pump in the prior art;
Fig. 2 is the structural representation of the concrete piston of pumping system among Fig. 1;
Fig. 3 is the cross section structure schematic diagram according to concrete piston one embodiment described in the utility model;
Fig. 4 is that schematic diagram is looked on the left side of structure shown in Figure 3.
Embodiment
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.Need to prove, in the situation that do not conflict, the application's embodiment and the feature among the embodiment can make up mutually.
A lot of details have been set forth in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from mode described here and implement, and therefore, protection domain of the present utility model is not subjected to the restriction of following public specific embodiment.
Please refer to Fig. 3 and Fig. 4, wherein, Fig. 3 is the cross section structure schematic diagram according to concrete piston one embodiment described in the utility model, and Fig. 4 is that schematic diagram is looked on the left side of structure shown in Figure 3.
The utility model provides a kind of concrete piston, comprise piston only 1, described piston only 1 is being circumferentially with seal 4 near edge on the periphery of front end, described piston only 1 is being circumferentially with dust ring 6 near edge on the periphery of rear end, on the periphery of the described piston only 1 between the front end of the rear end of described seal 4 and dust ring 6 along being circumferentially with at least two guide rings 5, two adjacent guide rings 5 piston only 1 axially on the interval intended distance.Dust ring 6 can prevent that grit from entering into the rear portion of guide ring 5 and seal 4, thereby reduces grit to the wearing and tearing of guide ring, concrete piston sealing body, improves the working life of concrete piston.
Because the outer circumferential face at piston body arranges at least two guide rings, two adjacent guide rings piston only axially on the interval intended distance, like this can be so that the increase of guiding distance, steering capability improves, can farthest reduce the possibility that eccentric wear occurs the concrete piston in running, prolong the working life of concrete piston sealing body, and, the running resistance of increase concrete piston that also can be not excessive.
Described guide ring 5 is two, and the front end of one of them guide ring 5 contacts with the rear end of described seal 4, and the rear end of another guide ring 5 contacts with the front end of described dust ring 6.
Like this, can farthest increase the guiding distance, reduce the possibility that eccentric wear occurs the concrete piston in running, prolong the working life of concrete piston sealing body.
The outer circumferential face of each described guide ring 5 all along circumferentially offering oil groove 51, is provided with shoe cream room 11 in the described piston only 1, and piston only 1 is provided with the pouring orifice 12 that is communicated to shoe cream room 11, and pouring orifice 12 outer ends are provided with plug cock.Can by manually or with oil pump through 12 pairs of shoe cream room 11 charging-up lubricant oils of pouring orifice.Pouring orifice 12 is located at piston brace rod 1 radially.Certainly, also pouring orifice 12 can be located at the axial of piston brace rod 1, thereby simplify the structure of piston brace rod, make things convenient for oiling and maintenance.Described shoe cream room 11 is communicated to the outer circumferential face of the described piston only 1 between described two guide rings 5 by the oil duct 13 that is arranged at described piston only 1.
Because the lubricant oil in the shoe cream room can flow on the outer circumferential face of piston only through oil duct, the concrete piston is in running, lubricant oil can enter in the oil groove on the guide ring outer circumferential face, realized guide ring is lubricated in real time, can reduce the running resistance of concrete piston in carrying cylinder, reduce wearing and tearing and the heating of seal on the concrete piston, improve the working life of concrete piston, reduce production costs, improve productivity effect.
The edge is circumferentially with groove 14 on the periphery of the described piston only 1 between described two guide rings 5.Described oil duct 13 is communicated with described shoe cream room 11 and described groove 14.Periphery fluting at piston only 1 can play the loss of weight effect, has reduced the weight of concrete piston, saves the cost of material of concrete piston.Groove can also play the effect of storage and distribute lubrication oil, and lubricant oil is evenly distributed on the outer circumferential face of concrete piston.
Described piston only 1 is comprised of piston brace rod 15, front pressuring plate 16, piston body 17 between described piston brace rod 15 and described front pressuring plate 16, and described piston brace rod 15 is connected by screw 18 with described front pressuring plate 16 and described piston body 2 is clamping between described piston brace rod 15 and described front pressuring plate 16.Because piston only adopts a plurality of parts to form, and is convenient to dismounting, so can only change the parts of damage when keeping in repair, maintenance cost is low.
Described seal 4 is comprised of rigid backbone 41 and elastomer 42, and described elastomer 42 is coated on described rigid backbone 41 outsides, and described rigid backbone 41 is clamping between described piston body 17 and described front pressuring plate 16.After adopting rigid backbone, can guarantee that not only seal has enough structural strengths, simultaneously, the axial dimension of seal can be done littlely, has reduced the weight of concrete piston, saves the cost of production of concrete piston.
Described rigid backbone 41 adopts steel to make, and described elastomer 42 adopts polyurethane or quality of rubber materials to make.Skeleton adopts steel to make, and can improve the structural strength of seal; Elastomer adopts polyurethane or quality of rubber materials to make, and can guarantee that seal has suitable elasticity, like this, can guarantee that on the one hand the resistance when the concrete piston moves is little in carrying cylinder; On the other hand, can guarantee that seal plays good sealing effect.
In technique scheme, preferably, described seal 4 comprises skeleton 41 and elastomer 42, and described skeleton 41 is sheathed on described front pressuring plate 3 peripheries, and described elastomer 42 is set on the described skeleton 41.After adopting skeleton, can guarantee that not only seal has enough structural strengths, simultaneously, the axial dimension of seal can be done littlely, has reduced the weight of concrete piston, saves the cost of production of concrete piston.
Further, described skeleton 41 adopts steel to make, and described elastomer 42 adopts polyurethane or quality of rubber materials to make.Skeleton adopts steel to make, and can improve the structural strength of seal; Elastomer adopts polyurethane or quality of rubber materials to make, and can guarantee that seal has suitable elasticity, like this, can guarantee that on the one hand the resistance when the concrete piston moves is little in carrying cylinder; On the other hand, can guarantee that seal plays good sealing effect.
The utility model also provides a kind of pumping system, comprises master cylinder and carries cylinder, the main oil cylinder piston bar that is provided with main oil cylinder piston in the master cylinder and is connected with main oil cylinder piston; Pumping system also comprises the concrete piston among above-mentioned any embodiment, and this concrete piston is located at and is carried in the cylinder, and is connected with the main oil cylinder piston bar by piston brace rod.Remove beyond the concrete piston, the structural design of this pumping system is identical with structural design and the working procedure of pumping system in the preamble background technique with working procedure, does not repeat them here.
The utility model also provides a kind of concrete pump, comprises hopper; Concrete pump also comprises above-mentioned pumping system, and carrying the quantity of cylinder is two, and these two are carried cylinder alternately to be communicated with hopper.Carry cylinder specifically how to realize alternately being communicated with hopper for these two, in the partly existing introduction of preamble background technique, do not repeat them here.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. concrete piston, comprise piston only (1), it is characterized in that, described piston only (1) is being circumferentially with seal (4) near edge on the periphery of front end, described piston only (1) is being circumferentially with dust ring (6) near edge on the periphery of rear end, along being circumferentially with at least two guide rings (5), adjacent two guide rings (5) are at the axially upper interval of piston only (1) intended distance on the periphery of the described piston only (1) between the front end of the rear end of described seal (4) and dust ring (6).
2. concrete piston according to claim 1, it is characterized in that, described guide ring (5) is two, and the front end of one of them guide ring (5) contacts with the rear end of described seal (4), and the rear end of another guide ring (5) contacts with the front end of described dust ring (6).
3. concrete piston according to claim 2, it is characterized in that, the outer circumferential face of described guide ring (5) is along circumferentially offering oil groove (51), be provided with shoe cream room (11) in the described piston only (1), piston only (1) is provided with the pouring orifice (12) that is communicated to shoe cream room (11), pouring orifice (12) outer end is provided with plug cock, and described shoe cream room (11) is communicated to the outer circumferential face of the described piston only (1) between described two guide rings (5) by the oil duct (13) that is arranged at described piston only (1).
4. concrete piston according to claim 3 is characterized in that, the edge is circumferentially with groove (14) on the periphery of the described piston only (1) between described two guide rings (5).
5. concrete piston according to claim 4 is characterized in that, described oil duct (13) is communicated with described shoe cream room (11) and described groove (14).
6. each described concrete piston in 5 according to claim 1, it is characterized in that, described piston only (1) is comprised of piston brace rod (15), front pressuring plate (16), the piston body (17) that is positioned between described piston brace rod (15) and the described front pressuring plate (16), and described piston brace rod (15) is connected by screw (18) with described front pressuring plate (16) and described piston body (2) is clamping between described piston brace rod (15) and described front pressuring plate (16).
7. concrete piston according to claim 6, it is characterized in that, described seal (4) is comprised of rigid backbone (41) and elastomer (42), described elastomer (42) is coated on described rigid backbone (41) outside, and described rigid backbone (41) is clamping between described piston body (17) and described front pressuring plate (16).
8. concrete piston according to claim 7 is characterized in that, described rigid backbone (41) adopts steel to make, and described elastomer (42) adopts polyurethane or quality of rubber materials to make.
9. a pumping system comprises the conveying cylinder, it is characterized in that, comprises that also described concrete piston is located in the described conveying cylinder such as each described concrete piston in the claim 1 to 8.
10. a concrete pump is characterized in that, described concrete pump comprises pumping system as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305614 CN202707470U (en) | 2012-06-27 | 2012-06-27 | Concrete piston, pumping system and concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305614 CN202707470U (en) | 2012-06-27 | 2012-06-27 | Concrete piston, pumping system and concrete pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707470U true CN202707470U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220305614 Withdrawn - After Issue CN202707470U (en) | 2012-06-27 | 2012-06-27 | Concrete piston, pumping system and concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707470U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705224A (en) * | 2012-06-27 | 2012-10-03 | 三一重工股份有限公司 | Concrete piston, pumping system and concrete pump |
| CN103410722A (en) * | 2013-08-12 | 2013-11-27 | 三一汽车制造有限公司 | Concrete piston, pumping system and concrete pump |
-
2012
- 2012-06-27 CN CN 201220305614 patent/CN202707470U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705224A (en) * | 2012-06-27 | 2012-10-03 | 三一重工股份有限公司 | Concrete piston, pumping system and concrete pump |
| CN102705224B (en) * | 2012-06-27 | 2015-07-08 | 三一重工股份有限公司 | Concrete piston, pumping system and concrete pump |
| CN103410722A (en) * | 2013-08-12 | 2013-11-27 | 三一汽车制造有限公司 | Concrete piston, pumping system and concrete pump |
| CN103410722B (en) * | 2013-08-12 | 2016-12-28 | 三一汽车制造有限公司 | Concrete piston, pumping system and concrete pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130130 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |