CN110576874A - Sand sprayer and rail vehicle with same - Google Patents
Sand sprayer and rail vehicle with same Download PDFInfo
- Publication number
- CN110576874A CN110576874A CN201910872264.9A CN201910872264A CN110576874A CN 110576874 A CN110576874 A CN 110576874A CN 201910872264 A CN201910872264 A CN 201910872264A CN 110576874 A CN110576874 A CN 110576874A
- Authority
- CN
- China
- Prior art keywords
- sand
- channel
- cylinder
- piston rod
- quicksand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
- B61C15/08—Preventing wheel slippage
- B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
- B61C15/102—Preventing wheel slippage by depositing sand or like friction increasing materials with sanding equipment of mechanical or fluid type, e.g. by means of steam
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Soil Working Implements (AREA)
Abstract
The invention relates to the technical field of rail transit vehicle devices, and discloses a sand spreader and a rail vehicle with the same, wherein the sand spreader comprises: the sand flow channel is formed in the first main body, and the blocking channel communicated with the sand flow channel is formed in the first main body; the second main body is arranged below the first main body, a sand discharge channel is formed in the second main body, and the sand discharge channel is communicated with the quicksand channel; the plugging component is arranged in the plugging channel; and the driving mechanism is connected with the plugging part, wherein the plugging part is driven to move by the movement of the driving mechanism so as to adjust the size of the bottom sand flowing hole of the sand flowing channel. The sand spreader has the advantages that the sand spreading amount can be accurately controlled, residual sand in the sand spreading pipe can be effectively removed, and the air consumption is small.
Description
Technical Field
The invention relates to the technical field of rail transit vehicle devices, in particular to a sand spreader and a rail vehicle with the same.
Background
The wheel sliding phenomenon is easy to occur in the operation process of the ground rail transit vehicle due to the weather influences of rain, snow, frost and the like, the sliding can bring great harm to the operation of the vehicle, light people scratch the wheels, and heavy people prolong the braking distance, so that safety accidents are caused. In order to avoid the phenomenon that wheels slide when a train runs and ensure the safe running of the train, the sanding device can effectively improve the adhesive force between the wheels and the track and reduce the sliding risk of the train.
The sand spreader that uses on the track transportation vehicles is mostly gravity type sand spreader and differential sand spreader, and wherein, gravity type sand spreader exists the difficult control of sanding speed, the easy scheduling problem that blocks up of sanding pipe, and differential sand spreader exists the air consumption big, can't adjust in real time and spill sand volume scheduling problem.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a sand spreader and a rail vehicle with the same, and aims to solve the technical problem that the sand spreading amount of the sand spreader in the prior art cannot be accurately controlled.
(II) technical scheme
in order to solve the above technical problem, according to a first aspect of the present invention, there is provided a sander comprising: the sand flow channel is formed in the first main body, and the blocking channel communicated with the sand flow channel is formed in the first main body; the second main body is arranged below the first main body, a sand discharge channel is formed in the second main body, and the sand discharge channel is communicated with the quicksand channel; the plugging component is arranged in the plugging channel; and the driving mechanism is connected with the plugging part, wherein the plugging part is driven to move by the movement of the driving mechanism so as to adjust the size of the bottom sand flowing hole of the sand flowing channel.
Wherein the blocking part comprises a stop plate which is fixedly arranged in the blocking channel and is provided with a through hole; the plugging part further comprises a piston rod which is arranged in the plugging channel and can penetrate through the through hole, and a piston part matched with the bottom sand flowing hole of the sand flowing channel is formed at the end of the piston rod facing the sand flowing channel.
The bottom of the quicksand channel is provided with a first inclined plane, and the piston part is provided with a second inclined plane which is matched with the first inclined plane and can block a bottom quicksand hole of the quicksand channel.
The blocking component further comprises an elastic resetting piece which is sleeved on the piston rod and located between the piston portion and the stop plate, wherein the first end of the elastic resetting piece abuts against the piston portion, and the second end of the elastic resetting piece abuts against the stop plate.
The sand discharge channel comprises an upper sand discharge channel and a lower sand discharge channel communicated with the upper sand discharge channel, wherein the section of the upper sand discharge channel is funnel-shaped.
Wherein, an air inlet channel which can be accessed with external compressed air is constructed in the second main body, and the air inlet channel is communicated with the lower sand discharge channel.
The lower sand discharge channel is embedded with an air guide sleeve, an air guide through hole extending obliquely downwards is formed in the air guide sleeve facing the air inlet channel, and the air inlet channel is communicated with the lower sand discharge channel through the air guide through hole.
Wherein a first acute angle is formed between the central line of the air guide through hole and the central line of the air guide sleeve.
Wherein the first acute angle has a size range of 45 degrees or more and 60 degrees or less.
The driving mechanism comprises an air cylinder, and a piston rod of the air cylinder is connected with a piston rod of the plugging component.
The sand spreader further comprises a connecting plate, the air cylinder is arranged on the lower end face of the second main body and is arranged opposite to the blocking component up and down, the telescopic end of the piston rod of the air cylinder is fixedly arranged at the lower end of the connecting plate, and the telescopic end of the piston rod of the blocking component is fixedly arranged at the upper end of the connecting plate.
The sand spreader comprises a first main body, a second main body and a blocking component, wherein the sand spreader also comprises two connecting plates, the two cylinders are respectively a first cylinder and a second cylinder, the first cylinder and the second cylinder are respectively arranged at two sides of the first main body, and the first cylinder, the second cylinder and the blocking component are arranged in parallel; the telescopic end of the piston rod of the first cylinder, the telescopic end of the piston rod of the second cylinder and the telescopic end of the piston rod of the plugging component are all fixedly arranged on the connecting plate.
Wherein the cylinder is disposed outside the first body and on an extension line of a center line of a piston rod of the plugging member.
According to a second aspect of the invention, there is also provided a rail vehicle comprising a sander as described above.
(III) advantageous effects
Compared with the prior art, the sand spreader provided by the invention has the following advantages:
Before the sanding starts, the plugging component is in a state of plugging the bottom of the quicksand channel, namely, the end part of the plugging component is firmly pressed on the bottom of the quicksand channel. When the sand spreading starts, the driving mechanism moves towards the outer side, namely, moves towards the direction far away from the first main body and the second main body, so as to drive the blocking component to move towards the direction far away from the quicksand channel, in the process, the bottom quicksand hole of the quicksand channel is gradually opened, the aperture of the bottom quicksand hole of the quicksand channel is also continuously changed along with the difference of the blocking component, namely, the aperture of the bottom quicksand hole exposed at the bottom of the quicksand channel is gradually increased along with the gradual distance of the blocking component from the quicksand channel, the sand amount of the quicksand channel flowing in the same time is also different, namely, the sand amount of the sand flowing out from the bottom quicksand hole of the quicksand channel is also gradually increased. Therefore, the sand spreader can control the displacement of the plugging component relative to the bottom sand flowing hole of the sand flowing channel by controlling the displacement of the driving mechanism, so as to achieve the purpose of controlling the sand amount flowing out of the bottom sand flowing hole.
Drawings
Fig. 1 is a schematic overall structure of a sander according to an embodiment of the present invention;
Fig. 2 is a schematic internal structure diagram of a sander according to a first embodiment of the present invention;
Fig. 3 is a schematic view of the internal structure of a sander according to a second embodiment of the present invention;
Fig. 4 is a schematic view of the internal structure of a sander according to a third embodiment of the present invention;
Fig. 5 is a schematic view of the overall structure of the air guide sleeve of the sander according to the embodiment of the present invention.
in the figure, 1: a first body; 11: a quicksand channel; 111: an upward sand flow channel; 112: a down-flow sand passage; 12: plugging the channel; 2: a second body; 21: a sand discharge channel; 211: an upper sand discharge channel; 212: a lower sand discharge channel; 22: an air intake passage; 23: a gas guide sleeve; 231: an air guide through hole; 3: a plugging member; 31: a piston rod; 32: a piston portion; 321: a second inclined plane; 33: an elastic reset member; 4: a drive mechanism; 41: a cylinder; 42: a piston rod; 411: a first cylinder; 412: a second cylinder; 5: a stopper plate; 6: a connecting plate; 7: a sanding pipe; θ: a first acute angle.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
in the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the sander is shown schematically to comprise a first body 1, a second body 2, a blocking member 3 and a drive mechanism 4.
In the embodiment of the present invention, a quicksand passage 11 is formed inside the first body 1, and a plugging passage 12 communicating with the quicksand passage 11 is formed inside the first body 1. Wherein the quicksand channel 11 extends from the upper end surface of the first body 1 down to the interior of the first body 1. It should be noted that the quicksand channel 11 includes an upper quicksand channel 111 and a lower quicksand channel 112 communicated with the upper quicksand channel 111, wherein the section of the upper quicksand channel 111 is funnel-shaped, and the funnel-shaped arrangement is adopted to receive more sand at the funnel, and meanwhile, the drainage function is provided to prevent the sand from being blocked excessively.
It should also be noted that the centerline of the plugging channel 12 may be perpendicular to the centerline of the quicksand channel 11. In this way, the plugging of the plugging member 3 to the bottom of the sand channel 11 can be ensured.
The second body 2 is arranged below the first body 1, a sand discharge channel 21 is constructed in the second body 2, and the sand discharge channel 21 is communicated with the sand flowing channel 11. The first body 1 and the second body 2 are arranged up and down, preferably, the first body 1 and the second body 2 can be arranged up and down oppositely, and the first body 1 and the second body 2 can be connected into a whole in a bolt fastening manner.
The plugging member 3 is disposed inside the plugging passage 12.
The driving mechanism 4 is connected with the plugging component 3, wherein the plugging component 3 is driven to move by the movement of the driving mechanism 4 so as to adjust the size of the bottom sand flowing hole of the sand flowing channel 11. Specifically, before the sanding starts, the plugging member 3 is in a state of plugging the bottom of the quicksand passage 11, that is, the end of the plugging member 3 is firmly pressed against the bottom of the quicksand passage 11.
when the sanding starts, the driving mechanism 4 moves towards the outside, i.e. towards the direction away from the first body 1 and the second body 2, so as to drive the blocking member 3 to move towards the direction away from the quicksand channel 11 (horizontally towards the right in the direction shown in fig. 2), in the process, the bottom quicksand hole of the quicksand channel 11 is gradually opened, the aperture of the bottom quicksand hole of the quicksand channel 11 is also continuously changed along with the position of the blocking member 3, i.e. the aperture of the bottom quicksand hole exposed at the bottom of the quicksand channel 11 is gradually increased along with the gradual distance of the blocking member 3 from the quicksand channel 11, and the sand amount flowing out of the quicksand channel 11 in the same time is also different, i.e. the sand amount of the sand flowing out from the bottom quicksand hole of the quicksand channel 11 is also gradually increased. Therefore, the sand spreader of the invention can control the displacement of the plugging component 3 relative to the bottom sand flowing hole of the sand flowing channel 11 by controlling the displacement of the driving mechanism 4, thereby achieving the purpose of controlling the sand amount flowing out from the bottom sand flowing hole.
It should be understood that, according to the actual needs, when the amount of flowing sand needs to be increased, the driving mechanism 4 may be made to drive the plugging member 3 to move rightward (to the right at the angle shown in fig. 2) to increase the amount of sand as described above; when it is desired to reduce the amount of sand appropriately during operation, rather than deactivating the sander, the drive mechanism 4 may be caused to drive the plugging member 3 to the left to reduce the amount of sand appropriately, thereby achieving dual adjustment of the sanding amount of the sander to either increase or decrease. It should be noted that, because the pressure differential type sand spreader in the prior art is replaced by the sand spreader of the present invention, the structure of the sand spreader of the present invention is relatively closed, moisture entering the interior of the sand spreader is relatively less than that of the pressure differential type sand spreader, and excessive air volume does not need to be consumed to dry the sand in the sand spreader, thereby effectively reducing the air volume consumption during sanding. Because the braking system and the sand spreader of the rail vehicle can both consume air volume, under the condition that the air volume consumed by the sand spreader is small, the braking system of the rail vehicle can have enough air volume to consume, so that the braking system of the rail vehicle can have better braking performance, and the running safety of the rail vehicle can be ensured.
It should also be noted that when the sanding is finished, the driving mechanism 4 moves in the reverse direction, that is, after the reset state is switched, the blocking component 3 can be driven to press the bottom sand flowing hole of the sand flowing channel 11 again, and sand does not flow out any more.
As shown in fig. 1 and 2, in a preferred embodiment of the invention, the blocking element 3 comprises a stop plate 5 which is fixedly arranged in the blocking channel 12, and a through-opening (not shown) is formed in the stop plate 5.
The shut-off part 3 further comprises a piston rod 31 which is arranged in the shut-off channel 12 and can be passed through the through hole, and a piston 32 which is adapted to the bottom sand flow hole of the sand flow channel 11 is formed at the end of the piston rod 31 facing the sand flow channel 11. It should be noted that the contour of the stop plate 5 should be adapted to the inner contour of the blocking channel 12, for example, if the inner contour of the blocking channel 12 is rectangular, the contour of the stop plate 5 should also be adapted to the rectangular shape, and if the inner contour of the blocking channel 12 is circular, the contour of the stop plate 5 should also be adapted to the circular shape.
in addition, to ensure that the piston rod 31 of the blocking member 3 can flexibly pass through the through hole on the stop plate 5, the diameter of the through hole should be slightly larger than the outer diameter of the piston rod 31, and preferably, the diameter of the through hole may be 1 mm to 2 mm larger than the outer diameter of the piston rod 31.
it should be further noted that the driving mechanism 4 drives the blocking component 3 to move in a direction away from the quicksand channel 11, so that the quicksand hole at the bottom of the quicksand channel 11 is gradually opened, and the sand amount of the sand flowing out in unit time is completely different due to the gradually increased aperture of the exposed quicksand hole, so as to achieve the purpose of finely controlling the sand spreading amount.
After the sanding is finished, the driving mechanism 4 is reset reversely, the blocking component 3 moves towards the direction close to the quicksand channel 11, and finally, the piston part 32 arranged on the piston rod 31 can block the quicksand hole at the bottom of the quicksand channel 11 again, so that the sand does not flow out any more.
As shown in fig. 1 and 2, in the embodiment of the present invention, the bottom of the quicksand channel 11 is configured with a first inclined surface (not shown), and the piston portion 32 is configured with a second inclined surface 321 adapted to the first inclined surface and capable of blocking the bottom quicksand hole of the quicksand channel 11. Specifically, the bottom of the quicksand channel 11 is configured with a first inclined surface, and at the same time, the piston portion 32 is configured with a second inclined surface 321 which is adapted to the first inclined surface and can block the bottom quicksand hole of the quicksand channel 11, so that in the process that the driving mechanism 4 drives the blocking component 3 to move together in the direction close to the quicksand channel 11, the first inclined surface and the second inclined surface 321 can be closely attached to each other, and the bottom quicksand hole of the quicksand channel 11 is completely blocked.
In addition, in the process of sanding, as the piston part 32 gradually gets away from the quicksand channel 11, the overlapping area of the second inclined surface 321 on the piston part 32 and the first inclined surface at the bottom of the quicksand channel 11 gradually decreases, so that the hole diameter of the bottom quicksand hole of the quicksand channel 11 is gradually increased, and the sanding amount can be finely adjusted.
It should be noted that, after the piston portion 32 is tightly pressed on the bottom sand flowing hole of the sand flowing channel 11, the bottom of the sand flowing channel 11 and the piston portion 32 form a right-angle structure together.
As shown in fig. 1 and fig. 2, in the embodiment of the present invention, the blocking component 3 further includes an elastic restoring member 33 disposed on the piston rod 31 and located between the piston portion 32 and the stop plate 5, wherein a first end of the elastic restoring member 33 abuts against the piston portion 32, and a second end of the elastic restoring member 33 abuts against the stop plate 5. Specifically, the elastic resetting piece 33 is sleeved on the piston rod 31 and located between the piston portion 32 and the stop plate 5, the first end of the elastic resetting piece 33 abuts against the piston portion 32, and the second end of the elastic resetting piece 33 abuts against the stop plate 5, so as to fix the two ends of the elastic resetting piece 33, when the driving mechanism 4 drives the plugging component 3 to move together in the direction away from the quicksand channel 11, so that the piston portion 32 is completely separated from the bottom quicksand hole of the quicksand channel 11, the compression amount of the elastic resetting piece 33 reaches the maximum, and the elastic resetting piece can store more elastic potential energy.
The driving mechanism 4 moves in the opposite direction to drive the plugging component 3 to move towards the direction close to the quicksand channel 11, at this time, the elastic potential energy of the elastic resetting piece 33 is gradually released, and under the action of the elastic restoring force of the elastic resetting piece 33, the driving mechanism 4 can be accelerated to drive the piston part 32 in the plugging component 3 to plug the bottom quicksand hole of the quicksand channel 11.
In a specific embodiment, the elastic restoring member 33 is preferably a spring or other elastic member with stored elastic potential energy.
In a preferred embodiment of the present invention, the sand discharge passage 21 comprises an upper sand discharge passage 211 and a lower sand discharge passage 212 communicated with the upper sand discharge passage 211, wherein the upper sand discharge passage 211 has a funnel-shaped cross section. Specifically, the cross section of the upper sand discharging channel 211 is funnel-shaped, and the funnel-shaped arrangement is adopted to receive more sand in the funnel, and meanwhile, the drainage function is achieved, so that the situation that the sand is blocked due to excessive sand is prevented.
As shown in fig. 2, in the embodiment of the present invention, an air inlet passage 22 capable of receiving external compressed air is formed inside the second body 2, and the air inlet passage 22 is communicated with the lower sand discharge passage 212. Wherein, the central line of the air inlet channel 22 is perpendicular to the central line of the sand discharge channel 21.
It should be noted that the bottom of the lower row of sand channels 212 is in butt communication with the sand blasting pipe 7.
In an embodiment of the present invention, an air guide sleeve 23 is embedded inside the lower sand discharge passage 212, an air guide through hole 231 extending obliquely downward is formed inside the air guide sleeve 23 facing the air inlet passage 22, and the air inlet passage 22 is communicated with the lower sand discharge passage 212 through the air guide through hole 231. Specifically, when sanding is finished, the driving mechanism 4 is switched to the reset state, the piston portion 32 on the blocking component 3 closes the bottom sand flowing hole of the sand flowing channel 11 under the action of the elastic reset piece 33, at this time, compressed air is continuously introduced into the air inlet channel 22 and enters the air guide sleeve 23 through the air guide through hole 231, the compressed air can generate a certain negative pressure above the air guide sleeve 23, and sand remaining in the sand spreader and the sand spreading pipe 7 is carried out of the sand spreader and the sand spreading pipe 7 by the compressed air, so that the condition that the sand spreading pipe 7 is not blocked is ensured, and the purpose of clearing the sand remaining in the sand spreading pipe 7 after sanding is achieved.
It should be noted that the air guide sleeve 23 is cylindrical as a whole, a plurality of sealing grooves with openings facing outward are formed on the outer circumferential wall of the air guide sleeve 23 at intervals along the axial direction, and a sealing member such as a sealing strip or a sealing ring is embedded in each sealing groove, thereby achieving the purpose of enhancing the sealing property between the air guide sleeve 23 and the lower sand discharge passage 212.
As shown in FIG. 5, in the preferred embodiment of the present invention, a first acute angle θ is formed between the center line of the air guide through hole 231 and the center line of the air guide sleeve 23. In this way, it is possible to ensure that the air guide through-hole 231 is in a state of being inclined obliquely downward so that the compressed air blown out through the air guide through-hole 231 can be blown down along the air guide sleeve 23, thereby blowing the sand remaining in the sand dispensing pipe 7 to the outside.
In an embodiment of the present invention, the first acute angle θ is in a range of 45 degrees or more and 60 degrees or less. Thus, the air guide through hole 231 can be ensured to thoroughly remove the sand remained in the sand spreader and the sand spreading pipe 7, and the air guide through hole 231 is prevented from inclining towards the first main body 1, so that the sand inside the sand spreader and the sand spreading pipe 7 cannot be effectively removed.
As shown in fig. 1 to 4, in a preferred embodiment of the present invention, the driving mechanism 4 comprises a cylinder 41, and a piston rod 42 of the cylinder 41 is connected with the piston rod 31 of the blocking member 3. Specifically, the piston rod 31 of the plugging member 3 is driven to synchronously move along with the movement of the piston rod 42 of the air cylinder 41.
As shown in fig. 3, in the embodiment of the present invention, the sander further includes a connecting plate 6, the cylinder 41 is disposed on the lower end surface of the second body 2 and is disposed opposite to the blocking member 3 up and down, the telescopic end of the piston rod 42 of the cylinder 41 is fixedly disposed on the lower end of the connecting plate 6, and the telescopic end of the piston rod 31 of the blocking member 3 is fixedly disposed on the upper end of the connecting plate 6. Specifically, the cylinder 41 is disposed on the lower end surface of the second main body 2 and is disposed opposite to the plugging member 3 up and down, then the telescopic end of the piston rod 42 of the cylinder 41 is fastened to the lower end of the connecting plate 6 through a bolt, and simultaneously the piston rod 31 of the plugging member 3 is fastened to the upper end of the connecting plate 6 through a bolt, so that the connecting plate 6 can be driven to synchronously move along with the piston rod 42 of the cylinder 41, and simultaneously the piston rod 31 of the plugging member 3 can be driven to synchronously move along with the piston rod through the movement of the connecting plate 6, and the piston portion 32 can be driven to move relative to the bottom of the sand flowing channel 11 through the movement of the piston rod 31, thereby adjusting the aperture of the sand flowing hole at the bottom of the sand flowing channel 11, and achieving the purpose of finely adjusting the sand discharging amount.
In another preferred embodiment of the present invention, as shown in fig. 1 and 2, the sander further comprises a connecting plate 6, two cylinders 41 are provided, namely a first cylinder 411 and a second cylinder 412, wherein the first cylinder 411 and the second cylinder 412 are respectively disposed on both sides of the first body 1, and the first cylinder 411, the second cylinder 412 and the blocking member 3 are disposed in parallel.
The telescopic end of the piston rod 42 of the first cylinder 411, the telescopic end of the piston rod 42 of the second cylinder 412 and the telescopic end of the piston rod 31 of the blocking component 3 are all fixedly arranged on the connecting plate 6. In this way, the piston rod 42 of the first cylinder 411 and the piston rod 42 of the second cylinder 412 move together in the direction away from the quicksand channel 11 to drive the connecting plate 6 to synchronously move together, and the connecting plate 6 horizontally moves rightward in the direction shown in fig. 2 to drive the plugging component 3 to synchronously move together, in the process, the position of the piston portion 32 relative to the bottom quicksand hole of the quicksand channel 11 is continuously changed, so that the pore diameter of the exposed bottom quicksand hole is also continuously changed, therefore, the sand amount of the flowing sand is different in the same time, and therefore, the purpose of finely adjusting the sand amount can be achieved by respectively controlling the displacement of the piston rod 42 of the first cylinder 411 and the piston rod 42 of the second cylinder 412.
In another preferred embodiment of the invention, as shown in fig. 4, the cylinder 41 is arranged outside the first body 1 on the extension of the centre line of the piston rod 31 of the closing member 3. Specifically, when the sanding is started, the piston rod 42 of the cylinder 41 retracts towards the inside of the cylinder 41, in the process, the piston portion 32 of the blocking component 3 is gradually far away from the bottom sand flowing hole of the sand flowing channel 11, and the hole diameter of the exposed bottom sand flowing hole of the sand flowing channel 11 is gradually increased along with the difference of the position of the piston portion 32, so that the sand amount of the sand flowing out at the same time is gradually increased, and the purpose of accurately adjusting the sand output is achieved.
Conversely, the piston rod 42 in the cylinder 41 extends outward, and drives the piston rod 31 of the blocking component 3 to move in a direction close to the quicksand channel 11, so that the piston portion 32 gradually approaches the bottom quicksand hole of the quicksand channel 11 and finally completely presses against the bottom quicksand hole of the quicksand channel 11 with the continuous movement of the piston rod 31, and sand does not flow out any more.
according to a second aspect of the invention, there is also provided a rail vehicle comprising a sander as described above.
As described above, before the sanding starts, the plugging member 3 is in a state of plugging the bottom of the quicksand passage 11, that is, the end of the plugging member 3 is firmly pressed against the bottom of the quicksand passage 11.
When the sanding starts, the driving mechanism 4 moves towards the outside, i.e. towards the direction away from the first body 1 and the second body 2, so as to drive the blocking member 3 to move towards the direction away from the quicksand channel 11 (horizontally towards the right in the direction shown in fig. 2), in the process, the bottom quicksand hole of the quicksand channel 11 is gradually opened, the aperture of the bottom quicksand hole of the quicksand channel 11 is also continuously changed along with the position of the blocking member 3, i.e. the aperture of the bottom quicksand hole exposed at the bottom of the quicksand channel 11 is gradually increased along with the gradual distance of the blocking member 3 from the quicksand channel 11, and the sand amount flowing out of the quicksand channel 11 in the same time is also different, i.e. the sand amount of the sand flowing out from the bottom quicksand hole of the quicksand channel 11 is also gradually increased. Therefore, the sand spreader of the invention can control the displacement of the plugging component 3 relative to the bottom sand flowing hole of the sand flowing channel 11 by controlling the displacement of the driving mechanism 4, thereby achieving the purpose of controlling the sand amount flowing out from the bottom sand flowing hole.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (14)
1. a sander, comprising:
The sand flow channel is formed in the first main body, and the blocking channel communicated with the sand flow channel is formed in the first main body;
the second main body is arranged below the first main body, a sand discharge channel is formed in the second main body, and the sand discharge channel is communicated with the quicksand channel;
The plugging component is arranged in the plugging channel; and
The driving mechanism is connected with the plugging part, and the plugging part is driven to move by the movement of the driving mechanism so as to adjust the size of the bottom sand flowing hole of the sand flowing channel.
2. A sander according to claim 1, wherein the blocking member comprises a stop plate fixedly disposed within the blocking channel, a through hole being configured in the stop plate;
the plugging part further comprises a piston rod which is arranged in the plugging channel and can penetrate through the through hole, and a piston part matched with the bottom sand flowing hole of the sand flowing channel is formed at the end of the piston rod facing the sand flowing channel.
3. The sand spreader of claim 2, wherein the bottom of the quicksand channel is configured with a first inclined surface, and the piston portion is configured with a second inclined surface adapted to the first inclined surface and capable of blocking the bottom quicksand hole of the quicksand channel.
4. The sander according to claim 2, wherein said blocking member further comprises an elastic return member disposed about said piston rod and between said piston portion and said stop plate, wherein a first end of said elastic return member abuts against said piston portion and a second end of said elastic return member abuts against said stop plate.
5. The sander of claim 1, wherein said sand discharge passage comprises an upper sand discharge passage and a lower sand discharge passage in communication with said upper sand discharge passage, wherein said upper sand discharge passage is funnel shaped in cross-section.
6. A sander as set forth in claim 5, wherein an air inlet passage accessible to external compressed air is configured in the interior of said second body, said air inlet passage communicating with said lower row of sanders.
7. The sand spreader according to claim 6, wherein an air guide sleeve is embedded in the lower sand discharge passage, an air guide through hole extending obliquely downwards is formed in the air guide sleeve towards the air inlet passage, and the air inlet passage is communicated with the lower sand discharge passage through the air guide through hole.
8. The sander of claim 7, wherein a first acute angle is configured between a centerline of said air guide through hole and a centerline of said air guide sleeve.
9. The sander of claim 8, wherein the first acute angle ranges in magnitude from 45 degrees or greater and 60 degrees or less.
10. A sander as set forth in claim 2, wherein said drive mechanism comprises a cylinder, a piston rod of said cylinder being connected to a piston rod of said blocking member.
11. The sander according to claim 10, further comprising a connecting plate, wherein the cylinder is disposed on the lower end surface of the second body and is disposed opposite to the plugging member in the vertical direction, the telescopic end of the piston rod of the cylinder is fixedly disposed on the lower end of the connecting plate, and the telescopic end of the piston rod of the plugging member is fixedly disposed on the upper end of the connecting plate.
12. The sander according to claim 10, further comprising a connecting plate, wherein there are two cylinders, namely a first cylinder and a second cylinder, wherein the first cylinder and the second cylinder are respectively disposed on both sides of the first body, and the first cylinder, the second cylinder and the blocking member are disposed in parallel;
The telescopic end of the piston rod of the first cylinder, the telescopic end of the piston rod of the second cylinder and the telescopic end of the piston rod of the plugging component are all fixedly arranged on the connecting plate.
13. A sander as set forth in claim 10, wherein said cylinder is disposed outside said first body and on an extension of a centerline of a piston rod of said blocking member.
14. A rail vehicle, characterized in that it comprises a sand spreader according to any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910872264.9A CN110576874A (en) | 2019-09-16 | 2019-09-16 | Sand sprayer and rail vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910872264.9A CN110576874A (en) | 2019-09-16 | 2019-09-16 | Sand sprayer and rail vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110576874A true CN110576874A (en) | 2019-12-17 |
Family
ID=68811637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910872264.9A Pending CN110576874A (en) | 2019-09-16 | 2019-09-16 | Sand sprayer and rail vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110576874A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000071979A (en) * | 1998-09-04 | 2000-03-07 | Takigen Mfg Co Ltd | Antiskid material scattering device for railway rolling stock |
| WO2008061650A1 (en) * | 2006-11-24 | 2008-05-29 | Goldmann, Norbert | Device for controlling sand quantities in rail vehicles |
| CN203809388U (en) * | 2014-04-25 | 2014-09-03 | 淮南矿业(集团)有限责任公司 | Driving device of coal feeder flashboard |
| CN204028266U (en) * | 2014-09-10 | 2014-12-17 | 深圳市罗庚电气有限公司 | High pressure T-shaped cable plug part multi-functional test desk |
| CN205238283U (en) * | 2015-12-15 | 2016-05-18 | 陈龙辉 | High -performance concrete mixer for building |
| FR3002990B1 (en) * | 2013-03-07 | 2016-09-02 | Belles Ondes Forges | DEVICE FOR EJECTING GRANULAR MATERIAL WITH VENTURI |
| CN107628040A (en) * | 2017-09-20 | 2018-01-26 | 中车青岛四方车辆研究所有限公司 | Sand sprayer |
| CN207078148U (en) * | 2017-08-30 | 2018-03-09 | 中车青岛四方车辆研究所有限公司 | Sand sprayer |
| CN109017829A (en) * | 2018-07-26 | 2018-12-18 | 株洲电力机车电机修造有限公司 | A kind of locomotive sand sprayer |
-
2019
- 2019-09-16 CN CN201910872264.9A patent/CN110576874A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000071979A (en) * | 1998-09-04 | 2000-03-07 | Takigen Mfg Co Ltd | Antiskid material scattering device for railway rolling stock |
| WO2008061650A1 (en) * | 2006-11-24 | 2008-05-29 | Goldmann, Norbert | Device for controlling sand quantities in rail vehicles |
| FR3002990B1 (en) * | 2013-03-07 | 2016-09-02 | Belles Ondes Forges | DEVICE FOR EJECTING GRANULAR MATERIAL WITH VENTURI |
| CN203809388U (en) * | 2014-04-25 | 2014-09-03 | 淮南矿业(集团)有限责任公司 | Driving device of coal feeder flashboard |
| CN204028266U (en) * | 2014-09-10 | 2014-12-17 | 深圳市罗庚电气有限公司 | High pressure T-shaped cable plug part multi-functional test desk |
| CN205238283U (en) * | 2015-12-15 | 2016-05-18 | 陈龙辉 | High -performance concrete mixer for building |
| CN207078148U (en) * | 2017-08-30 | 2018-03-09 | 中车青岛四方车辆研究所有限公司 | Sand sprayer |
| CN107628040A (en) * | 2017-09-20 | 2018-01-26 | 中车青岛四方车辆研究所有限公司 | Sand sprayer |
| CN109017829A (en) * | 2018-07-26 | 2018-12-18 | 株洲电力机车电机修造有限公司 | A kind of locomotive sand sprayer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017063312A1 (en) | Snow accumulation preventing device for train bogie area | |
| US5975174A (en) | Rim mountable tire inflation maintenance device | |
| CN108532732A (en) | A kind of anti-clogging inspection well cover | |
| CN106702919B (en) | The vertical pressing type of hydraulic pressure control type goes up and down deceleration strip certainly | |
| CN203048097U (en) | Micro-power dust collector for belt conveyor transferring station | |
| CN101806369B (en) | Inflation/deflation valve assembly for central tire inflation/deflation system of automobile | |
| CN110576874A (en) | Sand sprayer and rail vehicle with same | |
| CN205474916U (en) | Water tank formula of making an uproar deceleration strip falls in municipal administration illumination | |
| CN109017829A (en) | A kind of locomotive sand sprayer | |
| CN201858394U (en) | Combined control valve assembly of central inflation/deflation system of auto tire | |
| CN101162061A (en) | Automobile tyre central inflation-deflation over-flow shuttle valve | |
| CN212131170U (en) | Shock absorber, shock absorption system and vehicle | |
| CN103303296B (en) | Novel trailer control valve | |
| CN107278732B (en) | Overhead potential energy ejection artificial rainfall method and system based on intelligent power grid depending on mountain situation | |
| CN108589572B (en) | Road deceleration strip | |
| CN208618900U (en) | A kind of underground parking ramp | |
| CN217977156U (en) | Switch type primary vertical shock absorber for high-speed train | |
| CN202705979U (en) | Snow cleaning vehicle for airport and highway | |
| CN201739566U (en) | Axle valve assembly of automobile tire central inflation/deflation system | |
| CN203585436U (en) | Switch valve assembly, anti-freezing water feeding pipe device and station water supply system | |
| CN102261496A (en) | Combined control valve assembly of central inflation/deflation system of automobile tire | |
| CN203078522U (en) | Sanding valve | |
| CN1488540A (en) | Antiskid material sprinkling apparatus | |
| CN206001259U (en) | A kind of draining valve | |
| CN219134146U (en) | Prevent blocking sand subassembly down |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191217 |
|
| RJ01 | Rejection of invention patent application after publication |