CN211398945U - Wear-resistant bent pipe for conveying concrete - Google Patents
Wear-resistant bent pipe for conveying concrete Download PDFInfo
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- CN211398945U CN211398945U CN202020083986.4U CN202020083986U CN211398945U CN 211398945 U CN211398945 U CN 211398945U CN 202020083986 U CN202020083986 U CN 202020083986U CN 211398945 U CN211398945 U CN 211398945U
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Abstract
The utility model discloses a wear-resisting return bend for carrying concrete, including carrying the return bend, the both sides of carrying the return bend inner wall line of bending all are equipped with the through-hole, carry the both ends of branch pipe and weld respectively at two through-hole positions, make carry the branch pipe slope set up and with the inner chamber intercommunication of carrying the return bend both sides, the week side of carrying return bend and branch pipe is from interior to exterior and is equipped with protective layer and metal casing in proper order, is located carry the last metal casing of return bend with carry the return bend to weld in footpath mouthful border department, and set up wear-resisting flange through the welding carry the return bend two. When the wear-resisting return bend of concrete flow direction, the concrete shunts from carrying return bend and transport branch pipe, realizes partial pressure in the wear-resisting return bend for carry return bend outer wall internal surface to receive the concrete impact force and reduce, simultaneously, when the concrete is to carrying return bend outer wall internal surface impact, protective layer and metal-back have increased the thickness of carrying the return bend outer wall, prevent to carry the return bend to be punctured by the concrete.
Description
Technical Field
The utility model relates to an engineering machine tool technical field, concretely relates to a wear-resisting return bend for carrying concrete.
Background
The concrete conveying elbow is generally installed on a concrete pump truck and is mainly used for changing the arc-shaped pipeline of the concrete flow direction, although the concrete conveying elbow has various structural forms, the part of the concrete conveying elbow impacted by the concrete is generally a position extending from the middle point of the arc to two sides, and the middle point of the arc, namely the position with the largest curvature, is impacted most, so that the abrasion is the most serious.
The traditional concrete conveying elbow is a quenched manganese steel pipe and is integrally cast, the thickness of the outer wall of the concrete conveying elbow is different from that of the inner wall of the concrete conveying elbow, the outer wall refers to the large bend of the concrete conveying elbow, and the inner wall refers to the small bend of the concrete conveying elbow. When in use, because the pump increases the internal pressure of the concrete conveying elbow, the inner surface of the outer wall of the concrete conveying elbow is more impacted and rubbed by concrete, the concrete conveying elbow is seriously worn and is easier to break down, and therefore, the manufactured thickness is usually larger, such as: 18mm, 15mm and 12.5mm, etc., thereby making the concrete delivery elbow heavier in overall weight and not conducive to transportation.
SUMMERY OF THE UTILITY MODEL
The aforesaid that exists to prior art is not enough, the utility model discloses an how solve traditional concrete transportation return bend outer wall internal surface because the impact and the friction that receive the concrete are bigger, consequently, its wearing and tearing are serious, the technical problem who punctures easily provides one kind and reduces the concrete and to concrete transportation return bend outer wall internal surface impact force, simultaneously, prevents the wear-resisting return bend that is used for carrying the concrete of concrete transportation return bend outer wall internal surface puncture.
The technical scheme adopted by the invention is as follows:
a wear-resisting return bend for carrying concrete, including carrying the return bend, the both sides of carrying the return bend inner wall line of bending all are equipped with the through-hole, and the both ends of carrying the branch pipe weld respectively at two through-hole positions, make carry the branch pipe slope set up and with the inner chamber intercommunication of carrying the return bend both sides, carry the return bend and carry the week side of branch pipe to be equipped with protective layer and metal casing outward from interior to in proper order, be located carry the last metal casing of return bend with carry the return bend to weld in footpath mouth border department, and set up wear-resisting flange through the welding carry return bend two.
The utility model discloses a principle and beneficial effect lie in:
when the concrete flows to the wear-resisting return bend, the concrete is shunted from the conveying return bend and the conveying branch pipe, a part of concrete flows to the conveying return bend, and impact the inner surface of the outer wall of the conveying return bend, the other part of concrete flows back to the conveying return bend through the conveying branch pipe, the part of concrete does not impact the inner surface of the outer wall of the conveying return bend, the design is carried out, the internal partial pressure of the wear-resisting return bend is realized, the inner surface of the outer wall of the conveying return bend is reduced by the impact force of the concrete, meanwhile, because the protective layer and the metal shell are sequentially arranged on the periphery of the conveying return bend and the conveying branch pipe from inside to outside, thus, when the concrete impacts the inner surface of the outer wall of the.
Further, the protective layer is filled with concrete, and the thickness of the protective layer is less than 5 m. This scheme adopts the conveying return bend self thickness mutually, thickness of protective layer and metal casing thickness realize increasing the thickness of wear-resisting return bend, compare to traditional concrete conveying return bend, conveying return bend thickness in this scheme can design into unified thickness, reduce the cost of casting conveying return bend, again because the protective layer is less than 5m concrete for thickness, the holistic weight of concrete is less than the weight of the concrete conveying return bend of manganese steel pipe, consequently, the holistic weight of conveying return bend in this scheme is less than the weight of the concrete conveying return bend of manganese steel pipe, be favorable to the transportation.
Furthermore, the protective layer at the bending part at the outer side of the conveying bent pipe is designed to be thickened from two ends to the middle part and thickened from two sides to the middle part. The high wear resistance of the most easily worn position in the middle of the protective layer at the bending position is ensured.
Further, the conveying bent pipe and the conveying branch pipe are made of low alloy steel or medium low carbon steel materials. The low alloy steel or medium and low carbon steel adopted by the scheme reduces the cost and saves the raw material cost in manufacturing.
Further, the wear-resistant connecting flange is composed of a flange and a wear-resistant sleeve, and the wear-resistant sleeve is installed inside the flange. The wear-resisting flange of this scheme design is convenient for the return bend and is connected the installation with other equipment.
Furthermore, the wear-resistant sleeve is provided with a wear-resistant sleeve fit inclined plane, and the wear-resistant sleeve fit inclined plane is arranged on the outer circle of the wear-resistant sleeve. The wear-resistant sleeve in the wear-resistant connecting flange ensures the wear resistance of the opening end, prolongs the service life of the wear-resistant connecting flange and improves the sealing property of the wear-resistant connecting flange.
Furthermore, a connecting clamping groove is formed in the outer circle of the flange. The installation of the flange and other equipment is convenient.
Further, the conveying elbow is a 90-degree bent elbow.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model discloses wear-resisting return bend is used for the transport connection return bend structure of fluid state material of building trade, designs the unique structure of double-deck partial pressure, forms twice branch road by transport return bend and delivery branch pipe, realizes decomposing the pressure of transport return bend through delivery branch pipe, protects the transport return bend outer wall, makes the transport return bend outer wall internal surface receive the concrete impact force and reduce, simultaneously, the double-deck protection that sets up in transport return bend and delivery branch pipe week side makes the utility model discloses wear-resisting return bend can not receive external force collision, hits the impact deformation even damage in transportation, installation and use because of the return bend to and receive the internal material and lead to deformation even damage, and the middle easy wear position wall portion that wears seriously, easily wears when using is thicker, thereby has improved the life of return bend;
2. the utility model provides a when wear-resisting return bend is used for the first time to concrete filling in the protective layer, the concrete thick liquid gets into the protective layer inner chamber through the passageway that forms between metal casing and the week side of carrying return bend and conveying branch pipe, makes concrete thick liquid full of fill channel and protective layer inner chamber, makes conveying return bend and conveying branch pipe week side and metal casing fixed as an organic whole, can not produce the friction consumption each other, and the design can make the whole weight of return bend lighten more than 10% at least like this, reaches reduce cost, material saving, the purpose of resources are saved; the service life is long, the price is low, and the cost performance is improved by more than several times; and the mass production is easy to realize, the quality is stable and reliable, and the safety performance is high.
Drawings
Fig. 1 is a schematic view of a wear-resistant elbow structure for conveying concrete according to the present invention.
In the figure: conveying bent pipe 1, protective layer 2, metal casing 3, wear-resisting flange 4, wear-resisting cover 41, flange 42, connecting clamping groove 43, conveying branch pipe 5.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
In this embodiment: referring to fig. 1, a wear-resisting return bend for carrying concrete, including carrying return bend 1, carry return bend 1 to be the elbow of 90 buckling, carry return bend 1 inner wall both sides of line of bending all to be equipped with the through-hole, the both ends of carrying branch pipe 5 weld respectively at two through-hole positions, make carry branch pipe 5 slope setting and with the inner chamber intercommunication of carrying return bend 1 both sides, carry return bend 1 and carry the week side of branch pipe 5 and from interior to exterior to be equipped with protective layer 2 and metal casing 3 in proper order, the protective layer 2 that is located the department of bending outside of carrying return bend 1 designs for thickening from both ends to middle part and both sides to the thickening of middle part, has guaranteed the high wearability of the most easily wearing and tearing position in the middle of the.
Wherein, the conveying bent pipe 1 and the conveying branch pipe 5 are made of low alloy steel or medium low carbon steel material. The low alloy steel or medium and low carbon steel adopted by the scheme reduces the cost and saves the raw material cost in manufacturing.
The metal shell 3 positioned on the conveying elbow 1 and the conveying elbow 1 are welded at the edge of the diameter opening, the wear-resistant connecting flanges 4 are arranged at two ends of the conveying elbow 1 through welding, each wear-resistant connecting flange 4 consists of a flange 42 and a wear-resistant sleeve 41, and the wear-resistant sleeves 41 are arranged inside the flanges 42. The wear-resisting flange 4 of this scheme design is convenient for the return bend to be connected the installation with other equipment, is equipped with wear-resisting cover 41 on the wear-resisting cover 41 and agrees with the inclined plane, and wear-resisting cover 41 agrees with the inclined plane and locates on the wear-resisting cover 41 excircle. The wear-resistant sleeve 41 in the wear-resistant connecting flange 4 ensures the wear resistance of the opening end, prolongs the service life of the wear-resistant connecting flange 4 and improves the sealing property of the wear-resistant connecting flange.
The flange 42 of the present invention is: the components of the wear-resistant connecting flange 4; a flange 42 matched with the inclined plane and a connecting clamping groove 43 are arranged on the connecting device; the function of the device is to facilitate the connection and installation of the elbow and other equipment.
Wear-resisting cover 41 of the utility model indicate: the wear-resistant sleeve 41 is made of one of other wear-resistant materials such as high-chromium cast iron, low-chromium cast iron, medium-chromium cast iron, wear-resistant cast iron, alloy steel, bearing steel forging, ceramic, hard alloy sintering and high polymer materials; and the wear-resistant sleeve 41 is provided with a fit inclined plane; the function of the connecting flange is to prolong the service life of the wear-resistant connecting flange 4 and improve the sealing property.
The flange 42 of the present invention is engaged with the inclined plane: a mating ramp disposed within the flange 42; the purpose of which is to facilitate the mounting of the flange 42 with the wear sleeve 41.
The connecting clamping groove 43 of the utility model means: a clamping groove arranged on the outer circle of the flange 42; which functions to facilitate mounting of the flange 42 to other equipment.
Wear-resisting cover 41 agree with the inclined plane refer to: a fit inclined plane arranged on the excircle of the wear-resistant sleeve 41; the purpose of which is to facilitate the mounting of the flange 42 with the wear sleeve 41.
The utility model discloses wear-resisting return bend is used for the transport connection elbow structure of fluid state material of building trade, designs the unique structure of double-deck partial pressure, forms twice branch road by transport elbow 1 and delivery branch pipe 5, realizes decomposing the pressure of transport elbow 1 through delivery branch pipe 5, protects transport elbow 1 outer wall, makes transport elbow 1 outer wall internal surface receive the concrete impact force to reduce, simultaneously, the double-deck protection that sets up in transport elbow 1 and delivery branch pipe 5 week side makes the utility model discloses wear-resisting return bend can not receive external force collision, hits and be out of shape and damage even because of the return bend in transportation, installation and use to hit, and receive the internal material impact force and lead to out of shape and damage even, and the middle easy wear position wall portion that wears seriously, easily wears when using is thicker, thereby has improved the life of return bend;
the utility model provides a when wear-resisting return bend is used for the first time to concrete filling in protective layer 2, the concrete thick liquid gets into protective layer 2 inner chamber through the passageway that forms between the week side of metal casing 3 and conveying return bend 1 and conveying branch pipe 5, make concrete thick liquid fill up filling passageway and protective layer 2 inner chamber, make conveying return bend 1 and conveying branch pipe 5 week side and metal casing 3 fixed as an organic whole, can not produce the friction consumption each other, design like this can make the whole weight of return bend lighten more than 10% at least, reach reduce cost, material saving, the purpose of resources are saved; the service life is long, the price is low, and the cost performance is improved by more than several times; and the mass production is easy to realize, the quality is stable and reliable, and the safety performance is high.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.
Claims (8)
1. A wear-resisting return bend for carrying concrete, including carrying return bend (1), its characterized in that: carry return bend (1) inner wall both sides of line of bending all to be equipped with the through-hole, the both ends of carrying branch pipe (5) weld respectively at two through-hole positions, make carry branch pipe (5) slope set up and with the inner chamber intercommunication of carrying return bend (1) both sides, carry return bend (1) and carry the week side of branch pipe (5) from interior to exterior and be equipped with protective layer (2) and metal casing (3) in proper order, be located carry metal casing (3) on return bend (1) with carry return bend (1) to weld in footpath mouth border department, and set up wear-resisting flange (4) through the welding carry return bend (1) both ends.
2. Wear-resistant elbow for conveying concrete according to claim 1, characterised in that the protective layer (2) is filled with concrete and has a thickness of less than 5 m.
3. Wear-resistant bend for conveying concrete according to claim 1, characterised in that the protective layer (2) at the outer bend of the conveying bend (1) is designed to be thicker from both ends to the middle and thicker from both sides to the middle.
4. Wear-resistant elbow for conveying concrete according to claim 1, characterised in that the conveying elbow (1) and the conveying branches (5) are made of low-alloy or medium-low carbon steel material.
5. A wear-resistant elbow for conveying concrete according to any one of claims 1-4, characterised in that the wear-resistant connecting flange (4) consists of a flange (42) and a wear-resistant sleeve (41), the wear-resistant sleeve (41) being mounted inside the flange (42).
6. Wear-resistant elbow for conveying concrete according to claim 5, characterised in that the wear-resistant sleeve (41) is provided with a wear-resistant sleeve (41) fit-in slope, the wear-resistant sleeve (41) fit-in slope being provided on the outer circle of the wear-resistant sleeve (41).
7. Wear-resistant elbow for conveying concrete according to claim 5, characterised in that the flange (42) is provided with a connecting slot (43) on its outer circumference.
8. A wear-resistant elbow for conveying concrete according to any one of claims 1-4, characterised in that the conveying elbow (1) is a 90 ° bend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020083986.4U CN211398945U (en) | 2020-01-15 | 2020-01-15 | Wear-resistant bent pipe for conveying concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020083986.4U CN211398945U (en) | 2020-01-15 | 2020-01-15 | Wear-resistant bent pipe for conveying concrete |
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| Publication Number | Publication Date |
|---|---|
| CN211398945U true CN211398945U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020083986.4U Active CN211398945U (en) | 2020-01-15 | 2020-01-15 | Wear-resistant bent pipe for conveying concrete |
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| CN (1) | CN211398945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307037A (en) * | 2021-04-17 | 2021-08-27 | 华北水利水电大学 | Dilute phase pneumatic conveying cyclone antifriction elbow |
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2020
- 2020-01-15 CN CN202020083986.4U patent/CN211398945U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113307037A (en) * | 2021-04-17 | 2021-08-27 | 华北水利水电大学 | Dilute phase pneumatic conveying cyclone antifriction elbow |
| CN113307037B (en) * | 2021-04-17 | 2022-11-15 | 华北水利水电大学 | Dilute phase pneumatic conveying cyclone antifriction elbow |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230724 Address after: No. 88, Group 4, Luogudong Village, Taojia Town, Jiulongpo District, Chongqing 400000 Patentee after: MCC Construction Group Chongqing Concrete Engineering Co.,Ltd. Address before: No.1 Xicheng Avenue, Dadukou District, Chongqing Patentee before: CHINA METALLURGICAL CONSTRUCTION ENGINEERING GROUP Co.,Ltd. |