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CN-117719543-B - Sand pipe connecting device and sand spraying unit

CN117719543BCN 117719543 BCN117719543 BCN 117719543BCN-117719543-B

Abstract

The invention relates to the technical field of rail vehicles, and particularly discloses a sanding pipe connecting device and a sanding unit, wherein the sanding pipe connecting device comprises a mounting seat, a guide disc rotatably arranged on the mounting seat, a connector positioned below the guide disc, and a flexible piece connecting the guide disc and the connector, the utility model discloses a sand setting device, including the water conservancy diversion dish, be formed with the shake-out mouth that link up from top to bottom in the water conservancy diversion dish, have in the joint with shake-out passageway of shake-out mouth intercommunication, shake-out mouth include from the water conservancy diversion dish top surface is concave establishes the water conservancy diversion portion that forms and be the funnel shape. In the sanding pipe connecting device and the sanding unit provided by the invention, the joint can swing to a certain extent relative to the rotation axis of the guide disc under the condition that the joint can rotate along with the guide disc, so that the stress at the joint of the sanding pipe and the joint can be reduced, and the joint between the sanding pipe and the joint is prevented from loosening or falling off.

Inventors

  • HAN LIANG
  • ZHAO JIANFEI

Assignees

  • 克诺尔车辆设备(苏州)有限公司

Dates

Publication Date
20260505
Application Date
20240131

Claims (10)

  1. 1. The sand-spreading pipe connecting device is characterized by comprising a mounting seat, a guide disc arranged on the mounting seat and a connector positioned below the guide disc, wherein a sand-spreading port which is penetrated up and down is formed in the guide disc, a sand-spreading channel which is communicated with the sand-spreading port is formed in the connector, and the sand-spreading port comprises a funnel-shaped guide part concavely formed from the top surface of the guide disc; The guide disc is rotatable relative to the mounting seat, the sanding pipe connecting device further comprises a flexible piece, and the flexible piece is connected with the guide disc and the connector, so that the connector can swing relative to the rotation axis of the guide disc and rotate along with the guide disc.
  2. 2. A sanding pipe connection device as defined in claim 1, wherein the flexible member is annular and conforms to the deflector plate and the joint.
  3. 3. The sand pipe connecting device according to claim 1, wherein the mounting base comprises a base body and a first accommodating groove concavely formed from the top surface of the base body, at least part of the guide disc is rotatably arranged in the first accommodating groove, the mounting base further comprises a cover plate arranged on the top surface of the base body, and the cover plate is abutted against the guide disc along the up-down direction.
  4. 4. A sanding pipe connection device as defined in claim 3, further comprising a support member provided on the mount for supporting the deflector plate for rotation.
  5. 5. The sand pipe connection apparatus of claim 4 wherein the support member is disposed about the periphery of the joint and below the deflector plate, the support member is a thrust bearing, and upper and lower ends thereof abut the deflector plate and the mounting base, respectively.
  6. 6. The sanding pipe connection device of claim 5, wherein the joint comprises a joint body, a hemispherical connection portion connected above the joint body, and a limiting member provided on the mounting base, the limiting member having a spherical surface matched with the connection portion, and a gap between the joint and the deflector enabling the joint to swing relative to a rotation axis of the deflector.
  7. 7. A sanding pipe connection device as defined in claim 6, wherein the gap is annular and tapers from top to bottom, and the flexible member is located above the gap.
  8. 8. The sand pipe connection apparatus of claim 6 wherein the stop comprises separable first and second stop portions, the second stop portion being located above the first stop portion, the first and second stop portions each comprising a portion of the sphere.
  9. 9. The sand pipe connection apparatus of claim 6 wherein the base further comprises a second receiving recess formed downwardly from the first receiving recess, the support and at least a portion of the stop being located within the second receiving recess and the support being located at the periphery of the stop.
  10. 10. A sanding unit comprising a sanding pipe connection device as claimed in any one of claims 1 to 9.

Description

Sand pipe connecting device and sand spraying unit Technical Field The invention relates to the technical field of railway vehicles, in particular to a sanding pipe connecting device and a sanding unit. Background The sanding device is used for scattering sand between the wheels and the rail when the rail vehicle runs so as to increase the friction coefficient between the wheels and the rail and ensure the safe and reliable running of the rail vehicle. As shown in fig. 1, the conventional sanding apparatus includes a sanding unit 100', a sand box 200 connected to the sanding unit 100', and a sintered plate 300 positioned between the sanding unit 100' and the sand box 200. The flask 200 is used to store sand. The sanding unit 100 'comprises a fixing seat 110, a sand outlet pipe 120, an exhaust pipe 130 and a sanding pipe connecting device 10, wherein the sand outlet pipe 120, the exhaust pipe 130 and the sanding pipe connecting device 10 are connected to the fixing seat 110, a channel 140 is formed in the fixing seat 110, the channel 140 is provided with an interface S for communicating compressed gas and an interface T for communicating dry gas, the sand outlet pipe 120 and the exhaust pipe 130 extend into a sand box 200, the sanding unit 100' further comprises a sanding cover 150 covered at one end of the sand outlet pipe 120 extending into the sand box 200, an exhaust cover 160 covered at one end of the exhaust pipe 130 extending into the sand box 200, the sanding pipe connecting device 10 is used for connecting the sanding pipes, and the sand outlet pipe 120 and the exhaust pipe 130 are both communicated with the sanding pipes. When the sanding apparatus is in operation, the interface S is communicated with compressed air, the compressed air can pass through the sintering plate 300 and enter the sand box 200, a part of the compressed air entering the sand box 200 blows sand grains to enter the sand outlet pipe 120 through a gap between the sanding cover 150 and the sand outlet pipe 120 (shown by an arrow A in fig. 1) and then is discharged from the sand outlet pipe together with the sand grains, and another part of the compressed air entering the sand box 200 passes through the sand grains in the sand box 200 to loosen the sand grains, then enters the exhaust pipe 130 through the exhaust cover 160 (shown by an arrow B in fig. 1) and then is discharged from the sand outlet pipe after entering the exhaust pipe 130. The sanding unit 100' further includes a heating assembly 400 extending into the channel 140, and when sand in the sand box 200 needs to be dried, the interface T is connected with a drying gas, and the drying gas passes through the sintering plate 300 and enters the sand box 200 after being heated by the heating assembly 400, so as to dry the sand in the sand box 200, and then enters the exhaust pipe 130 through the exhaust hood 160, and finally is discharged from the sanding pipe. In the existing sanding unit, a sanding pipe connecting device is fixedly connected with a sanding pipe through a joint, in the running process of a railway vehicle, bending expansion of the sanding pipe and snow accumulation and icing on the sanding pipe in winter can enable the joint of the sanding pipe and the joint to generate larger stress, so that the joint between the sanding pipe and the joint is loose or falls off, and the running safety of the railway vehicle is affected. Disclosure of Invention The invention aims to provide a sanding pipe connecting device and a sanding unit, which can reduce stress at the joint of a sanding pipe and a joint. In order to achieve the above purpose, the invention provides a sand spraying pipe connecting device, which comprises a mounting seat, a guide disc arranged on the mounting seat, and a connector arranged below the guide disc, wherein a sand falling port which is penetrated up and down is formed in the guide disc, a sand falling channel which is communicated with the sand falling port is formed in the connector, and the sand falling port comprises a funnel-shaped guide part concavely arranged from the top surface of the guide disc; The guide disc is rotatable relative to the mounting seat, the sanding pipe connecting device further comprises a flexible piece, and the flexible piece is connected with the guide disc and the connector, so that the connector can swing relative to the rotation axis of the guide disc and rotate along with the guide disc. As a further development of the invention, the flexible element is annular and engages the deflector disk and the joint. As a further improvement of the invention, the mounting seat comprises a seat body and a first containing groove concavely formed from the top surface of the seat body, at least part of the guide disc is rotatably arranged in the first containing groove, the mounting seat also comprises a cover plate arranged on the top surface of the seat body, and the cover plate is abutted against the guide disc along t