CN202452011U - Straight pipe and concrete conveying device - Google Patents
Straight pipe and concrete conveying device Download PDFInfo
- Publication number
- CN202452011U CN202452011U CN2012200042227U CN201220004222U CN202452011U CN 202452011 U CN202452011 U CN 202452011U CN 2012200042227 U CN2012200042227 U CN 2012200042227U CN 201220004222 U CN201220004222 U CN 201220004222U CN 202452011 U CN202452011 U CN 202452011U
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- Prior art keywords
- flange
- straight tube
- wear
- resistant sleeve
- pipe
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- Expired - Fee Related
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Abstract
The utility model provides a straight pipe and a concrete conveying device. The straight pipe comprises a composite straight pipe, a first flange and a second flange, wherein the first flange and the second flange are connected with the composite pipe opening. The composite straight pipe comprises an outer pipe and an inner pipe. A first abrasion-resisting sleeve is embedded in the first flange, and a second abrasion-resisting sleeve is embedded in the second flange. A concave portion is arranged inside the second flange, a boss matched with the concave portion is arranged inside the second abrasion-resisting sleeve, the end of the composite straight pipe presses the boss, and the boss is fixed in the concave portion. Mechanical interlocking is achieved between the second flange and the second abrasion-resisting sleeve through matching of the concave portion and the boss, and effects for preventing an abrasion-resisting lining from falling and preventing the inner pipe from rushing out are achieved.
Description
Technical field
The utility model relates to transmission and concrete transmission field in the engineering machinery, is meant a kind of straight tube and concrete conveying equipment especially.
Background technique
At present, when carrying out construction, generally transmission and concrete transmission is arrived predetermined place, to implement predetermined operation through suitable engineering machinery.In the process of delivering concrete, concrete mud reaches predetermined place through delivery pipe under suitable pressure effect, carries out concrete placement or perfusion operation.
In the delivering concrete process, the inwall of delivery pipe will bear the erosion and the wearing and tearing of the persistency that produces when concrete mud flows on the one hand; On the other hand, delivery pipe will bear the pressure effect of concrete mud, and to higher position or than the distant place delivering concrete time, delivery pipe will bear higher pressure effect.Concrete mud requires the delivery pipe inwall to have higher hardness to the abrasive wear and the erosive wear of delivery pipe, and concrete mud requires delivery pipe to have good toughness and intensity again to the pressure effect of delivery pipe.
In order to satisfy the requirement of hardness, toughness and intensity, the pump truck that generally uses at present carries straight tube to be the two-layer compound straight tube, and structure is as shown in Figure 1; Inner tube material is the through hardening alloyed steel; Outer tube material is a low-carbon alloy steel, and there is adpting flange at two ends, is inlaid with wear-resistant sleeve in the flange.But there is following defective in this kind two-layer compound straight tube: the composite force of outer tube and interior pipe a little less than; After in the pumping process, plugging occurring; Operator generally take discharge end is taken apart, carry out comb through pump concrete or water, but pipe are rushed out very easily in this process.
The model utility content
The purpose of the utility model is to propose a kind of straight tube and concrete conveying equipment, and this straight tube prevents that anti-wearing liner from coming off and interior pipe is gone out in plugging comb process.
On the one hand, the utility model provides a kind of straight tube, comprises compound straight tube and first flange and second flange that are connected in the compound straight tube mouth of pipe; Said compound straight tube comprises outer tube and interior pipe; Said first flange has been embedded in first wear-resistant sleeve; Said second flange has been embedded in second wear-resistant sleeve; The inboard of said second flange is provided with a recess, and the inboard of said second wear-resistant sleeve is provided with the boss that can match with said recess; And said compound straight tube end compresses said boss, and said boss is fixed in the said recess.
Further, the hardness number of the said second wear-resistant sleeve material is identical with the hardness number of the said first wear-resistant sleeve material.
Further, the hardness number of the said second wear-resistant sleeve material is greater than HRC62.
Further, said outer tube and said first flange and second flange are through being welded to connect.
Further, said interior pipe is an interference fit with said outer tube.
Further, said first flange outside is provided with recess, and the arranged outside of said first wear-resistant sleeve has the boss that can match with said recess.
Further, said interior pipe is pipe in the high-carbon alloy steel.
Cooperate realization mechanical interlocked through recess and boss between second flange and second wear-resistant sleeve in the utility model, played the effect that prevents that anti-wearing liner from coming off and interior pipe is gone out.
On the other hand, the utility model also proposes a kind of concrete conveying equipment, comprises the bend pipe, Taper Pipe and the straight tube that are linked in sequence, and the structure of wherein said straight tube is identical with above-mentioned straight tube structure.
Because the straight tube in the concrete conveying equipment is identical with above-mentioned straight tube structure, therefore, the utility model concrete conveying equipment also has identical technique effect.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing compound straight tube;
Fig. 2 is the structural representation of the utility model straight tube;
Fig. 3 is the sectional structure schematic representation of straight tube discharge end port position;
Fig. 4 is the sectional structure schematic representation of discharge end flange;
Fig. 5 is the sectional structure schematic representation of discharge end wear-resistant sleeve;
Fig. 6 is the sectional structure schematic representation of outer tube and interior pipe.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Straight tube embodiment
Referring to Fig. 2, Fig. 2 is the structural representation of the utility model straight tube.
Present embodiment provides a kind of straight tube, comprises compound straight tube and first flange 100 and second flange 500 that are connected in the compound straight tube mouth of pipe.Compound straight tube comprises outer tube 200 and interior pipe 300, and interior pipe 300 is embedded in the outer tube 200, and first flange 100 has been embedded in first wear-resistant sleeve, 700, the second flanges 500 and has been embedded in second wear-resistant sleeve 400.The inboard of second flange 500 is provided with a recess 530; The inboard of second wear-resistant sleeve 400 (near a side of compound straight tube) is provided with a boss 420; And boss 420 is embedded in the recess 530, and the end of outer tube 200 and interior pipe 300 compresses boss 420, makes boss 420 be fixed in the recess 530.
Present embodiment adopts inverted connection between second flange 500 and second wear-resistant sleeve 400; The recess 530 that promptly connects the two and boss 420 lay respectively at the inboard of second flange 500 and second wear-resistant sleeve 400; This kind Placement makes between second flange 500 and second wear-resistant sleeve 400 and forms mechanical self-latching, can prevent that in plugging comb process second wear-resistant sleeve 400 from coming off.The end of outer tube 200 and interior pipe 300 compresses the inboard of boss 420 simultaneously, on the one hand boss 420 is fixed in the recess 530, and on the other hand, pipe 300 broke away from outer tube 200 in plugging comb process in boss 420 also can prevent, went out outside the compound straight tube.
Placement between first flange 100 and first wear-resistant sleeve is as shown in Figure 2, is provided with a recess in the outside of first flange 100, and the arranged outside of first wear-resistant sleeve 700 has a boss, and this boss cooperates installation with recess.
In the specific implementation; Recess 530, boss 420, outer tube 200 and interior pipe 300 be connected preferably Fig. 3-Placement shown in Figure 6; The assembly relation of the internal surface 520 of second flange 500 and the outer surface 450 of second wear-resistant sleeve 400 is a Spielpassung; The step surface 540 of second flange 500 is concordant with the step surface 440 of second wear-resistant sleeve 400; The inner side surface 430 of the outer side surface 210 of outer tube 200, the outer side surface 310 of interior pipe 300 and second wear-resistant sleeve 400 is concordant, and the internal surface of interior pipe 300 is concordant with the internal surface of second wear-resistant sleeve 400, and the outer side surface 410 of second wear body 400 is concordant with the outer side surface 510 of second flange 500.
Preferably, the hardness number of second wear-resistant sleeve, 400 materials is identical with the hardness number of first wear-resistant sleeve, 700 materials.For example, can choose hardness, possess the Hardmetal materials of equal performance such as GCr15 or other greater than the material of HRC62 material as first wear-resistant sleeve 700; Second wear-resistant sleeve 400 can be chosen hardness number material greater than HRC62 after heat treatment; Process such as PM HSS or rich chromium cast iron; The material selection PM HSS of its second wear-resistant sleeve 400 or the advantage of rich chromium cast iron are: second wear-resistant sleeve 400 and compound straight tube together after the heat treatment, can guarantee the wear resistance of second wear-resistant sleeve 400.
In the specific implementation, interior pipe 300 can adopt high-carbon alloy steel to process through special thermal treatment technology, and outer tube 200 materials can adopt carbon steel or low-carbon alloy steel, is interference fit between outer tube 200 and the interior pipe 300.The outer surface of the outer surface 220 of outer tube 200 and first flange 100 and second flange 500 adopts and is welded to connect.
The making method of straight tube is following in the utility model:
1) earlier second wear-resistant sleeve 400 is packed in second flange 500, the exterior edge face 410 of second wear-resistant sleeve 400 is concordant with the exterior edge face 510 of second flange 500, and recess 530 and boss 420 offset, and second wear-resistant sleeve 400 and second flange 500 are Spielpassung.
2) the compound straight tube body of more compound good outer tube 200 and interior pipe 300 being formed and first flange 100, assemble second flange, 500 weldings of second wear-resistant sleeve 400, and carry out the heat treatment of special process.Wherein, the interior edge face 430 of compound straight tube body end face and boss 420 offsets.
3) in first flange 100, inlay first wear-resistant sleeve 700 at last.
During actual the use, first flange 100 is a feed end, and second flange 500 is a discharge end.
The utility model has following advantage in terms of existing technologies:
1) the utility model makes adpting flange and wear-resistant sleeve form mechanical interlock through changing the structure of discharge end adpting flange and wear-resistant sleeve, in the plugging comb process, and the problem that pipe is gone out in can fundamentally solving.
2) the utility model is fixed in the recess of discharge end adpting flange through the boss of compound straight tube body with the discharge end wear-resistant sleeve, and this structure can prevent the problem that the discharge end wear-resistant sleeve comes off easily.
3) the discharge end wear-resistant sleeve adopts PM HSS or high chromium cast iron material, and together carries out integrated type heat treatment with the straight tube body, can guarantee the wear resistance of second wear-resistant sleeve.
Concrete conveying equipment embodiment:
On the other hand, the utility model also provides a kind of concrete conveying equipment, comprises the straight tube, bend pipe and the Taper Pipe that are linked in sequence, and wherein the structure of straight tube is identical with above-mentioned straight tube structure.The utility model repeats no more at this, and related content gets final product referring to above-mentioned explanation.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. straight tube,
Comprise compound straight tube and first flange (100) and second flange (500) that are connected in the compound straight tube mouth of pipe;
Said compound straight tube comprises outer tube (200) and interior pipe (300);
Said first flange (100) has been embedded in first wear-resistant sleeve (700);
Said second flange (500) has been embedded in second wear-resistant sleeve (400);
It is characterized in that,
The inboard of said second flange (500) is provided with a recess (530), and the inboard of said second wear-resistant sleeve (400) is provided with the boss (420) that can match with said recess (530); And
Said compound straight tube end compresses said boss (420), and said boss (420) is fixed in the said recess (530).
2. straight tube according to claim 1 is characterized in that,
The hardness number of said second wear-resistant sleeve (400) material is identical with the hardness number of said first wear-resistant sleeve (700) material.
3. straight tube according to claim 2 is characterized in that,
The hardness number of said second wear-resistant sleeve (400) material is greater than HRC62.
4. according to each described straight tube among the claim 1-3, it is characterized in that,
Said outer tube (200) and said first flange (100) and second flange (500) are through being welded to connect.
5. according to each described straight tube among the claim 1-3, it is characterized in that,
Pipe (300) is an interference fit with said outer tube (200) in said.
6. straight tube according to claim 1 is characterized in that,
Said first flange (100) outside is provided with recess, and the arranged outside of said first wear-resistant sleeve (700) has the boss that can match with said recess.
7. according to each described straight tube among the claim 1-3, it is characterized in that,
Pipe (300) is a pipe in the high-carbon alloy steel in said.
8. a concrete conveying equipment comprises the bend pipe, Taper Pipe and the straight tube that are linked in sequence, it is characterized in that, said straight tube is each described straight tube in the claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200042227U CN202452011U (en) | 2012-01-06 | 2012-01-06 | Straight pipe and concrete conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200042227U CN202452011U (en) | 2012-01-06 | 2012-01-06 | Straight pipe and concrete conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202452011U true CN202452011U (en) | 2012-09-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200042227U Expired - Fee Related CN202452011U (en) | 2012-01-06 | 2012-01-06 | Straight pipe and concrete conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202452011U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909532A (en) * | 2012-11-14 | 2013-02-06 | 苏州鸿通方元机械有限公司 | Pump pipe production and machining process |
| CN103062534A (en) * | 2013-01-16 | 2013-04-24 | 中联重科股份有限公司 | Flange assembly, concrete delivery pipeline and method for manufacturing flange assembly |
| CN103277587A (en) * | 2013-06-07 | 2013-09-04 | 中联重科股份有限公司 | Abrasion-resistant taper pipe, concrete delivery pipeline and concrete pumping device |
| CN103557375A (en) * | 2013-03-20 | 2014-02-05 | 天津市联众钢管有限公司 | Composite pump truck arm frame delivery pipe and processing technology thereof |
| CN104075037A (en) * | 2014-06-25 | 2014-10-01 | 三一汽车制造有限公司 | Concrete pumping device, concrete conveying pipe and manufacturing method of concrete conveying pipe |
| CN105020506A (en) * | 2015-06-15 | 2015-11-04 | 淄博滕坤工贸有限公司 | High-alloy abrasion-resistant composite flange straight tube for concrete truck |
| CN105318123A (en) * | 2014-07-24 | 2016-02-10 | 中联重科股份有限公司 | Conveying device and concrete conveying equipment with same |
| CN105626979A (en) * | 2016-02-05 | 2016-06-01 | 中联重科股份有限公司 | Conveying system, conveying pipe and manufacturing method of conveying pipe |
| WO2018171811A1 (en) * | 2017-03-21 | 2018-09-27 | 周朝辉 | Method for preparing sectional-type high abrasion resistant double-layered straight pipe and corresponding abrasion resistant straight pipe |
-
2012
- 2012-01-06 CN CN2012200042227U patent/CN202452011U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909532A (en) * | 2012-11-14 | 2013-02-06 | 苏州鸿通方元机械有限公司 | Pump pipe production and machining process |
| CN103062534A (en) * | 2013-01-16 | 2013-04-24 | 中联重科股份有限公司 | Flange assembly, concrete delivery pipeline and method for manufacturing flange assembly |
| CN103557375A (en) * | 2013-03-20 | 2014-02-05 | 天津市联众钢管有限公司 | Composite pump truck arm frame delivery pipe and processing technology thereof |
| CN103557375B (en) * | 2013-03-20 | 2017-01-25 | 天津市联众钢管有限公司 | Composite pump truck arm frame delivery pipe and processing technology thereof |
| CN103277587A (en) * | 2013-06-07 | 2013-09-04 | 中联重科股份有限公司 | Abrasion-resistant taper pipe, concrete delivery pipeline and concrete pumping device |
| CN103277587B (en) * | 2013-06-07 | 2016-01-20 | 中联重科股份有限公司 | Wear-resisting Taper Pipe, concrete conveyance pipeline and concrete pumping equipment |
| CN104075037A (en) * | 2014-06-25 | 2014-10-01 | 三一汽车制造有限公司 | Concrete pumping device, concrete conveying pipe and manufacturing method of concrete conveying pipe |
| CN105318123A (en) * | 2014-07-24 | 2016-02-10 | 中联重科股份有限公司 | Conveying device and concrete conveying equipment with same |
| CN105020506A (en) * | 2015-06-15 | 2015-11-04 | 淄博滕坤工贸有限公司 | High-alloy abrasion-resistant composite flange straight tube for concrete truck |
| CN105626979A (en) * | 2016-02-05 | 2016-06-01 | 中联重科股份有限公司 | Conveying system, conveying pipe and manufacturing method of conveying pipe |
| WO2018171811A1 (en) * | 2017-03-21 | 2018-09-27 | 周朝辉 | Method for preparing sectional-type high abrasion resistant double-layered straight pipe and corresponding abrasion resistant straight pipe |
| US11359758B2 (en) | 2017-03-21 | 2022-06-14 | Zhaohui Zhou | Sectional-type high wear-resistant double-layer straight tube and a method for preparing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HUNAN ZHONGCHENG MACHINERY CO., LTD. Assignor: Sanyi Heavy Industry Co., Ltd. Contract record no.: 2013430000042 Denomination of utility model: Straight pipe and concrete conveying device Granted publication date: 20120926 License type: Exclusive License Record date: 20130426 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150106 |
|
| EXPY | Termination of patent right or utility model |