CN215807017U - Rotary pump pipe connecting device and wet spraying machine with same - Google Patents
Rotary pump pipe connecting device and wet spraying machine with same Download PDFInfo
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- CN215807017U CN215807017U CN202122395009.5U CN202122395009U CN215807017U CN 215807017 U CN215807017 U CN 215807017U CN 202122395009 U CN202122395009 U CN 202122395009U CN 215807017 U CN215807017 U CN 215807017U
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Abstract
The utility model discloses a rotary pump pipe connecting device and a wet spraying machine with the same. The pump pipe connecting device for the spraying machine and the wet spraying machine with the rotary pump pipe connecting device have the advantages of smooth rotation, good stability, high safety, capability of reducing material fatigue, long service life and the like.
Description
Technical Field
The utility model relates to the technical field of wet spraying machines, in particular to a rotary pump pipe connecting device and a wet spraying machine with the same.
Background
In the initial support construction stage of the tunnel, a layer of 15-25mm homogeneous C25 concrete is sprayed to form the early support surface of the tunnel. The wet spraying machine sprays concrete by means of a spray head of the wet spraying machine, and the spray head sprays the concrete uniformly in a certain range through brushing action to form a tunnel supporting surface. The spray head and the concrete pumping hose (made of steel wire and rubber) of the existing wet spraying machine in China are mostly rigidly connected through a pipe clamp, so that the transportation and the spraying action of concrete are guaranteed. All domestic wet spraying machines are continuously operated at high strength and high frequency, and the pumping hose is seriously damaged due to continuous torsion and bending deformation formed by rotation between a spray head of the wet spraying machine and the pumping hose, so that the service life of the pumping hose is greatly shortened.
In order to solve the above technical problems, the existing solutions in the industry are: and a rotary connecting device consisting of a rotary body, a limiting flange, an O-shaped seal and a lip-shaped seal is arranged between the spray head and the pumping hose. The rotary connecting device is simple in structure and easy to process and manufacture, and solves the problem of no rotary connecting device. However, the rotary joint is a surface-to-surface contact rotation, which generates static friction or sliding friction. When the rotary connecting device does rotary motion, friction needs to be overcome, so that the rotary motion is not smooth enough. When the wet spraying machine does 360-degree brushing motion, the reciprocating swing (impact formation) of the arm support is also carried out, and in an ideal state, the pumping hose should do rotary motion relative to the spray head to offset the brushing and swinging torsional force. Moreover, when the rotary connecting device overcomes the friction force to rotate, a large amount of heat can be generated, the local temperature of the pumping hose is increased, and the damage of the pumping hose can be accelerated. Furthermore, the swivel connection is relatively short in effective length, which results in a loss of service life of the pumping hose connected to the swivel connection.
In summary, how to realize the free rotation between the spray head of the wet spraying machine and the concrete pumping hose, i.e., between the hard pipe and the hose, so as to alleviate the bending and torsion deformation of the pumping hose and prolong the service life of the pumping hose is a technical problem to be solved in the industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects in the prior art and provides a rotary pump pipe connecting device which is smooth in rotation, good in stability, high in safety, capable of reducing material fatigue and long in service life and a wet spraying machine with the rotary pump pipe connecting device.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a rotary pump pipe connecting device comprises a first pipe body, a second pipe body, a bearing assembly, a limiting assembly and a sealing assembly used for sealing, wherein one end of the first pipe body is connected with one end of the second pipe body in a rotatable mode through the bearing assembly, the first pipe body is arranged in the second pipe body in a penetrating mode to form a containing cavity between the first pipe body and the second pipe body, the bearing assembly is arranged in the containing cavity, and the limiting assembly is used for preventing the bearing assembly from moving axially.
In the above-mentioned rotary pump pipe connecting device, preferably, the bearing assembly includes one or more bearings, an inner ring of the bearing is connected to the outer side wall of the first pipe body, and an outer ring of the bearing is connected to the inner side wall of the second pipe body.
Preferably, the limiting assembly comprises a first limiting part and a second limiting part which are respectively arranged on two sides of the bearing assembly, the first limiting part is a first shaft shoulder arranged on the first pipe body, and the second limiting part is a round nut arranged on the first pipe body.
The above-mentioned rotary pump pipe connecting device, preferably, the bearing is equipped with two at least, two at least the bearing sets up along first body axial interval in proper order, spacing subassembly still including setting up on first body and being located two adjacent retaining rings between the bearing.
In the above-mentioned rotary pump pipe connection device, preferably, a stop washer is provided between the round nut and the bearing.
The rotary pump pipe connecting device is preferable, the sealing assembly comprises sealing rings arranged at intervals and a flange connected to one end of the second pipe body, the accommodating cavity is located between the sealing rings arranged at intervals, and a sealing layer is arranged between the flange and the second pipe body.
In the above-mentioned rotary pump pipe connection device, preferably, a first gap is provided between the flange and the outer side wall of the first pipe body, and a second gap is provided between the outer side wall of the first pipe body inserted into one end of the second pipe body and the inner side wall of the second pipe body.
The above-mentioned rotary pump pipe connection device, preferably, the rotary pump pipe connection device further includes a lubrication mechanism, the lubrication mechanism is installed on the second pipe body and is communicated with the containing cavity.
As a general technical concept, the present invention also provides a wet spraying machine having the above rotary pump pipe connection device, the wet spraying machine including a pumping hose and a spray head assembly, the spray head assembly being connected to the pumping hose through the rotary pump pipe connection device.
In the wet spraying machine, preferably, an elbow is further connected between the rotary pump pipe connecting device and the pumping hose.
Compared with the prior art, the utility model has the advantages that:
the rotary pump pipe connecting device is mainly used for connecting a pumping hose and a spray head of a wet spraying machine, when the rotary pump pipe connecting device is used, the other end of a first pipe body is connected with the pumping hose, the other end of a second pipe body is connected with the spray head, and the first pipe body and the second pipe body are connected through a bearing assembly, so that the first pipe body and the second pipe body can rotate relatively stably and smoothly. The limiting assembly can limit axial movement of the bearing, axial movement of the bearing is restrained, the first pipe body and the second pipe body are guaranteed to rotate smoothly, and structural stability and safety of the rotary pump pipe connecting device are improved. The sealing assembly can prevent concrete grout in the pipe cavities of the first pipe body and the second pipe body from invading into the containing cavity, and the bearing assembly can work normally. The first pipe body and the second pipe body can rotate smoothly and stably relative to each other, so that bending and torsion between the pumping hose and the spray head can be avoided, impact force on the structure is greatly reduced, material fatigue is reduced, the service lives of common parts, key parts and wearing parts of the wet spraying machine are greatly prolonged, the maintenance period is prolonged, and the maintenance cost is reduced.
The wet sprayer of the utility model has the advantages of the rotary pump pipe connecting device because of the rotary pump pipe connecting device.
Drawings
Fig. 1 is a partial sectional structural schematic view of a wet blasting machine.
Fig. 2 is a partial sectional structural view of fig. 1.
Fig. 3 is a schematic sectional view of a rotary pump pipe connection device according to an embodiment.
Fig. 4 is a schematic sectional view of a rotary pump pipe connection device according to a second embodiment.
Fig. 5 is an enlarged view of a portion a in fig. 3.
Fig. 6 is an enlarged view at B in fig. 3.
Illustration of the drawings:
1. a first pipe body; 2. a second tube body; 3. a bearing; 4. a lubrication mechanism; 5. a seal ring; 6. a cavity; 7. a flange; 8. a first shoulder; 9. a retainer ring; 10. a round nut; 11. a stop washer; 12. a sealing layer; 13. a first gap; 14. a second gap; 201. a pumping hose; 202. a spray head; 203. bending the pipe; 204. a first pipe clamp; 205. a second pipe strap; 206. a connecting pipe; 207. a drive device; 208. a hanging rack.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific examples.
The first embodiment is as follows:
as shown in fig. 1 to 3, the rotary pump pipe connection device of the present embodiment is mainly used for connecting a pumping hose 201 of a wet spraying machine with a spray head 202. The rotary pump pipe connecting device comprises a first pipe body 1, a second pipe body 2, a bearing assembly, a limiting assembly and a sealing assembly for sealing. One end of the first tube 1 is rotatably connected to one end of the second tube 2 by a bearing assembly. The first pipe body 1 penetrates through the second pipe body 2, so that a containing cavity 6 is formed between the first pipe body and the second pipe body, and the bearing assembly is arranged in the containing cavity 6. The limiting assembly is used for preventing the bearing assembly from moving axially. During the use, the other end and the pumping hose 201 of first body 1 are connected, and the other end and the shower nozzle 202 of second body 2 are connected, because first body 1 and second body 2 pass through bearing assembly to be connected, consequently can rotate relatively steadily, smoothly between first body 1 and the second body 2. The limiting assembly can limit the axial movement of the bearing 3, inhibit the axial movement of the bearing 3, ensure the smooth rotation of the first pipe body 1 and the second pipe body 2, and improve the structural stability and the safety of the rotary pump pipe connecting device. The seal assembly can prevent concrete grout in the pipe cavities of the first pipe body 1 and the second pipe body 2 from invading the cavity 6, and the bearing assembly can work normally. The first pipe body 1 and the second pipe body 2 can rotate smoothly and stably, bending and twisting between the pumping hose 201 and the spray head 202 can be avoided, impact force on the structure is greatly reduced, material fatigue is reduced, the service lives of common parts, key parts and wearing parts of the wet spraying machine are greatly prolonged, the maintenance period is prolonged, and the maintenance cost is reduced. The rotary pump pipe connecting device can also be applied to other equipment, such as sprinkling irrigation of agricultural machinery.
As shown in fig. 3, in the present embodiment, the bearing assembly includes more than one bearing 3, an inner ring of the bearing 3 is connected to an outer sidewall of the first tube 1, and an outer ring of the bearing 3 is connected to an inner sidewall of the second tube 2. The bearing 3 adopts an angular contact bearing, and can effectively absorb axial load. The inner ring of the bearing 3 is assembled with the outer side wall of the first pipe body 1 in an interference fit mode. The outer ring of the bearing 3 and the inner side wall of the second pipe body 2 are assembled in a transition fit mode.
As shown in fig. 3, in the present embodiment, the limiting component includes a first limiting member and a second limiting member respectively disposed at two sides of the bearing component, the first limiting member is a first shaft shoulder 8 disposed on the first tube 1, the second limiting member is a round nut 10 disposed on the first tube 1, the round nut 10 can abut against a sidewall of an inner ring of the bearing 3 and does not contact with an outer ring of the bearing 3, two round nuts 10 are disposed, and the two round nuts 10 are disposed in close proximity. The second limiting part adopts the round nut 10, so that the manufacturing difficulty of the rotary pump pipe connecting device is reduced, and the cost is reduced. And the axial position can be adjusted to round nut 10, can be through the position of adjustment round nut 10, ensure spacing effect of spacing subassembly. And a double-nut structure is adopted, so that looseness is effectively prevented.
As shown in fig. 3, in this embodiment, there are two bearings 3, the two bearings 3 are sequentially and axially spaced along the first pipe body 1, and the limiting assembly further includes a retaining ring 9 disposed on the first pipe body 1 and located between the two bearings 3. The retainer ring 9 can abut against the side wall of the inner ring of the bearing 3 and does not contact the outer ring of the bearing 3. The relative rotation of the first pipe body 1 and the second pipe body 2 is smoother and more stable. The first shaft shoulder 8, the round nut 10 and the retainer ring 9 are matched to prevent the two bearings 3 from moving axially, and the reliability is good.
As shown in fig. 3, in the present embodiment, the sealing assembly includes two sealing rings 5 arranged at intervals and a flange 7 connected to one end of the second tubular body 2, the cavity 6 is located between the two sealing rings 5, and a sealing layer 12 is disposed between the flange 7 and the second tubular body 2. The lateral wall of first body 1 and the inside wall of second body 2 respectively are equipped with a standard seal groove, and two sealing washer 5 set up respectively in two seal grooves. The sealing ring 5 is an O-shaped sealing ring. The sealing assembly can effectively prevent sundries such as external dust, dust and rainwater from invading the accommodating cavity 6, prevent concrete slurry in the pipe cavities of the first pipe body 1 and the second pipe body 2 from invading the accommodating cavity 6, and prevent lubricating oil in the accommodating cavity 6 from leaking. The second body 2 includes minor bore section and big internal diameter section, and the cladding of big internal diameter section is on first body 1, and the major diameter section cooperates with sealing washer 5 with the folding groove that minor bore section formed and seals, improves sealed effect. The flange 7 is used as a part of a limiting assembly and a part of a sealing assembly, and the structure is compact.
As shown in fig. 3, 5 and 6, in the present embodiment, a first gap 13 is formed between the flange 7 and the outer sidewall of the first pipe 1, and a second gap 14 is formed between the outer sidewall of the end of the first pipe 1 inserted into the second pipe 2 and the inner sidewall of the second pipe 2. The friction and interference between the first pipe body 1, the second pipe body 2 and the flange 7 can be avoided, so that the first pipe body 1 and the second pipe body 2 rotate smoothly and stably relatively.
As shown in fig. 3, in this embodiment, the rotary pump tube connecting device further includes a lubricating mechanism 4, and the lubricating mechanism 4 is installed on the second tube 2 and is communicated with the cavity 6. Lubricating oil is injected into the accommodating cavity 6 through the lubricating mechanism 4, so that the bearing 3 can rotate smoothly, the first pipe body 1 and the second pipe body 2 can rotate relatively more smoothly, the lubrication is conveniently and regularly injected, and the pump pipe connecting device for the wet spraying machine is easy to maintain.
Example two:
as shown in fig. 4, the present embodiment is substantially the same as the first embodiment, and the main difference is that in the present embodiment, there is one round nut 10, and a stop washer 11 is disposed between the round nut 10 and the bearing 3. The locating part on the right side of the limiting assembly adopts the combination of the single nut and the stop washer 11, so that the reliability of the limiting assembly is guaranteed, the structure of the limiting assembly is simpler and more compact, and the cost is reduced.
Example three:
as shown in fig. 1 and 2, the wet sprayer of the present embodiment includes a pumping hose 201 and a sprayer assembly, and the sprayer assembly is connected to the pumping hose 201 through the rotary pump pipe connection device. The spray head assembly comprises a spray head 202, the spray head 202 is connected with the other end of the second pipe body 2 through a connecting pipe 206, and a pumping hose 201 is connected with the other end of the first pipe body 1. The hanging rack 208 of the wet spraying machine is provided with a driving device 207, and the connecting pipe 206 is connected with the driving device 207. The first pipe body 1 and the second pipe body 2 can rotate smoothly and stably, bending and twisting between the pumping hose 201 and the spray head 202 can be avoided, impact force on the structure is greatly reduced, material fatigue is reduced, the service lives of common parts, key parts and wearing parts of the wet spraying machine are greatly prolonged, the maintenance period is prolonged, and the maintenance cost is reduced.
As shown in fig. 1 and 2, in this embodiment, an elbow 203 is further connected between the rotary pump pipe connection device and the pumping hose 201. The elbow 203 adopts a 45-degree elbow, and the rotary pump pipe connecting device is matched with the elbow 203, so that the maximum bending section of the pumping hose 201 is effectively transited, the pumping hose 201 can naturally droop, and the service life of the pumping hose 201 is greatly prolonged.
As shown in fig. 1 and 2, in the present embodiment, the other end of the first pipe body 1 is detachably connected to the elbow 203 by a first pipe clamp 204, and the other end of the second pipe body 2 is detachably connected to the connection pipe 206 by a second pipe clamp 205. The rotary pump pipe connecting device is convenient to replace. The rotary pump pipe connecting device adopts a standardized interface, can be conveniently installed on equipment of different types, and has strong universality and good flexibility.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the utility model are to be considered as within the scope of the utility model.
Claims (10)
1. The utility model provides a rotary pump union coupling which characterized in that: the sealing device comprises a first pipe body (1), a second pipe body (2), a bearing assembly, a limiting assembly and a sealing assembly for sealing, wherein one end of the first pipe body (1) is connected with one end of the second pipe body (2) in a rotatable mode through the bearing assembly, the first pipe body (1) is arranged in the second pipe body (2) in a penetrating mode to enable a containing cavity (6) to be formed between the first pipe body and the second pipe body, the bearing assembly is arranged in the containing cavity (6), and the limiting assembly is used for preventing the bearing assembly from axially moving.
2. The rotary pump tube connection as claimed in claim 1, wherein: the bearing assembly comprises more than one bearing (3), the inner ring of the bearing (3) is connected with the outer side wall of the first pipe body (1), and the outer ring of the bearing (3) is connected with the inner side wall of the second pipe body (2).
3. The rotary pump pipe connection as claimed in claim 2, wherein: the limiting assembly comprises a first limiting part and a second limiting part which are arranged on two sides of the bearing assembly respectively, the first limiting part is a first shaft shoulder (8) arranged on the first pipe body (1), and the second limiting part is a round nut (10) arranged on the first pipe body (1).
4. The rotary pump pipe connection as claimed in claim 3, wherein: the bearing (3) are provided with at least two bearings (3) which are sequentially arranged along the axial direction of the first pipe body (1) at intervals, and the limiting assembly further comprises a retainer ring (9) which is arranged on the first pipe body (1) and is positioned between the two adjacent bearings (3).
5. The rotary pump pipe connection as claimed in claim 3, wherein: and a stop washer (11) is arranged between the round nut (10) and the bearing (3).
6. The rotary pump tube connection as claimed in claim 1, wherein: the sealing assembly comprises sealing rings (5) arranged at intervals and a flange (7) connected to one end of the second pipe body (2), the accommodating cavity (6) is located between the sealing rings (5) arranged at intervals, and a sealing layer (12) is arranged between the flange (7) and the second pipe body (2).
7. The rotary pump tube connection as claimed in claim 6, wherein: a first gap (13) is formed between the flange (7) and the outer side wall of the first pipe body (1), and a second gap (14) is formed between the outer side wall of one end, inserted into the second pipe body (2), of the first pipe body (1) and the inner side wall of the second pipe body (2).
8. The rotary pump tube connection as claimed in claim 1, wherein: the rotary pump pipe connecting device further comprises a lubricating mechanism (4), wherein the lubricating mechanism (4) is installed on the second pipe body (2) and is communicated with the accommodating cavity (6).
9. A wet blasting machine having a rotary pump pipe connection as claimed in any one of claims 1 to 8, characterized in that: the sprayer assembly is connected with the pumping hose (201) through the rotary pump pipe connecting device.
10. The wet blasting machine of claim 9, wherein: an elbow (203) is also connected between the rotary pump pipe connecting device and the pumping hose (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122395009.5U CN215807017U (en) | 2021-09-30 | 2021-09-30 | Rotary pump pipe connecting device and wet spraying machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122395009.5U CN215807017U (en) | 2021-09-30 | 2021-09-30 | Rotary pump pipe connecting device and wet spraying machine with same |
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| Publication Number | Publication Date |
|---|---|
| CN215807017U true CN215807017U (en) | 2022-02-11 |
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| CN202122395009.5U Active CN215807017U (en) | 2021-09-30 | 2021-09-30 | Rotary pump pipe connecting device and wet spraying machine with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024011494A1 (en) * | 2022-07-14 | 2024-01-18 | 湖南五新隧道智能装备股份有限公司 | Rotating pump pipe connecting device and wet spraying machine provided with rotating pump pipe connecting device |
-
2021
- 2021-09-30 CN CN202122395009.5U patent/CN215807017U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024011494A1 (en) * | 2022-07-14 | 2024-01-18 | 湖南五新隧道智能装备股份有限公司 | Rotating pump pipe connecting device and wet spraying machine provided with rotating pump pipe connecting device |
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