A train external sliding door driving mechanism

Abstract

The present invention discloses a train external sliding door driving mechanism, which relates to the technical field of train external sliding doors, including a sliding door mechanism, the auxiliary mechanism including a rectangular groove, two U-shaped blocks and two servo electric cylinders, an oil tank is arranged inside the middle storage groove, an oil pump is installed at the bottom of the inner wall of the middle storage groove, a storage pipe is installed at the input end of the oil tank, an adsorption layer is arranged inside the storage pipe, an electric valve is installed at the input end of the storage pipe, and a nozzle is installed inside each of the mounting holes. By arranging the auxiliary mechanism, the present invention can allow the driving mechanism on the train external sliding door, that is, the sliding door mechanism, to be supplemented with lubricating oil after long-term use, thereby ensuring that the friction between the components on the sliding door mechanism will not increase, thereby improving the service life of the sliding door components, that is, improving the use effect of the train external sliding door.

Description

Technical Field

[0001] The present invention relates to the technical field of train externally mounted sliding doors, in particular to a driving mechanism for a train externally mounted sliding door. Background Art

[0002] The train's external sliding door is mainly composed of a door frame, door leaf, slide rails, guide devices, door locks and drive mechanisms. This type of door is hung on the side wall of the carriage and is opened and closed by pushing and pulling the drive mechanism, slide rails and guide devices.

[0003] Although the existing drive mechanism for the external sliding door of the train can control the opening and closing operation of the door body, realize the getting on and off of the train by people inside and outside, and has a simple structure and is easy to use, it does not have the function of adding lubricating oil to the drive mechanism. As a result, after long-term use, the lubrication effect of the drive mechanism decreases, causing the components of the drive mechanism to wear due to increased friction, that is, reducing the service life of the drive mechanism, thereby reducing the service life efficiency of the drive mechanism, and then reducing the use effect of the external sliding door of the train.

[0004] Therefore, we propose a train external sliding door driving mechanism to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a train external sliding door drive mechanism to solve the problem that the existing drive mechanism does not have the function of adding lubricating oil to the drive mechanism, which causes the components of the drive mechanism to wear due to increased friction after long-term use due to the reduction of lubrication effect, that is, the service life of the drive mechanism is reduced, thereby reducing the use efficiency of the drive mechanism, and then reducing the use effect of the train external sliding door.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a train external sliding door driving mechanism, comprising a sliding door mechanism, wherein the sliding door mechanism is provided with an auxiliary mechanism;

[0007] The auxiliary mechanism includes a rectangular groove, two U-shaped blocks and two servo electric cylinders. The notch of the rectangular groove is installed with a porous plate. The inner wall of the rectangular groove is provided with three storage grooves. The notch of the upper storage groove and the notch of the lower storage groove are both installed with a first sealing cover. An oil tank is provided inside the middle storage groove. An oil pump is installed at the bottom of the inner wall of the middle storage groove. A storage pipe is installed at the input end of the oil tank. An adsorption layer is provided inside the storage pipe. An electric valve is installed at the input end of the storage pipe. A second sealing cover is installed at the feed port of the storage pipe. The inner wall of the rectangular groove and the front surface of the porous plate are both provided with a conduit groove, a tee is arranged between the inside of the two conduit grooves, and multi-way pipes are installed at the two output ends of the tee, and a baffle is fixed on the inside of each U-shaped block near the edges on both sides, and guide plates are fixed on the front surface of the inner wall and the rear surface of the inner wall of the two U-shaped blocks. A plurality of mounting holes are evenly distributed on the top of the inner wall of each U-shaped block, and a nozzle is installed inside each mounting hole. The top of the inner wall of the upper storage tank and the top of the inner wall of the lower storage tank are both provided with guide holes.

[0008] Preferably, the input end of the oil pump is connected to the output end of the oil tank through a first hose, the output end of the oil pump is connected to the input end of the three-way pipe through a second hose, the input end of each of the nozzles is respectively connected to each output end of the two multi-way pipes through a third hose, and the bottom of the telescopic ends of the two servo electric cylinders are respectively installed on the top of the two U-shaped blocks.

[0009] Preferably, stoppers are fixed inside the upper storage trough and the lower storage trough, and the tops of the inner walls of the two stoppers do not contact the tops of the inner walls of the upper storage trough and the lower storage trough.

[0010] Preferably, the sliding door mechanism includes a door frame, a shell is installed on the front surface of the door frame, the rectangular groove is opened on the rear surface of the door frame, a placement groove is opened on the front surface of the door frame, the two servo electric cylinders are respectively installed on the top of the inner walls of the two placement grooves, the bottoms of the two U-shaped blocks are respectively in contact with the inner upper surfaces of the two placement grooves, and the inner upper surfaces of the two placement grooves are respectively connected to the inlets of the two guide holes.

[0011] Preferably, the input ends of the two multi-way tubes are respectively fixed through the inner walls of the two placement grooves, a rectangular hole is provided on the front surface of the door frame, a door body is provided inside the rectangular hole, one side of the door body is movable through the inner wall of the rectangular hole, and the two ends on one side of the door body extend to the inside of the two placement grooves respectively, two card slots are provided on the front surface of the door body, and limiting slots are provided on the top of the inner wall of the rectangular hole and the bottom of the inner wall of the rectangular hole.

[0012] Preferably, a first mounting groove is provided on the rear surface of the door body near the bottom and on the rear surface of the door body near the top, and a limiting block is installed inside the two first mounting grooves, and the opposite ends of the two limiting blocks are respectively slidably connected to the inside of the two limiting grooves, and two second mounting grooves are provided on the front surface of the door frame, and the inner walls of the two second mounting grooves are respectively connected to the inner walls of the two limiting grooves.

[0013] Preferably, electromagnets are installed inside the two second mounting grooves, the magnetic ends of the two electromagnets are in contact with the opposite ends of the two limit blocks respectively, the notches of the two second mounting grooves are installed with cover plates, and the rear surface of the door body is provided with two symmetrical first sliding grooves.

[0014] Preferably, the interior of the two first sliding grooves are slidably connected to the first slider, the top of the inner wall of the two placement grooves are installed with an electric push rod, the two ends of one side of the door body are installed with a limit plate, the inner walls of the two placement grooves are fixed with a limit rod, and one end of the two limit rods are movable through the rear surface of the door body.

[0015] Preferably, two second sliding grooves are provided on one side of the inner wall of the two placement grooves and one side of the inner wall of the shell, and the four second sliding grooves are divided into two groups. The interior of each group of the second sliding grooves is slidably connected with a second slider, and the surfaces of the two second sliders are installed with motors. The output ends of the two motors are installed with single-headed screw rods, and the ends of the two single-headed screw rods away from the motors are movable through one side of the two limit plates respectively, and two ports on one side of the door body are provided with threaded grooves.

[0016] Preferably, the ends of the two single-head screw rods away from the motor are respectively threadedly sleeved on the inside of the two threaded grooves, a baffle is installed at the opening of the shell, two symmetrical rectangular columns are fixed on the front surface of the inner wall of the shell, the two rectangular columns are respectively matched with the two card slots, and the bottom of the inner wall and the rear surface of the inner wall of the two placement grooves are provided with wire holes, and the two wire holes are respectively connected to the inner walls of the two second installation grooves.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides an auxiliary mechanism, which allows the driving mechanism on the train's external sliding door, i.e., the sliding door mechanism, to be relubricated with lubricating oil after long-term use, thereby ensuring that the friction between the components on the sliding door mechanism does not increase, thereby increasing the service life of the sliding door components, and improving the use effect of the train's external sliding door. When it is necessary to lubricate the single-head screw rod on the sliding door mechanism with lubricating oil, the PLC controller, oil pump, first hose, storage tube, second sealing cover, adsorption layer, electric valve and second hose in the cab are first used to easily extract the lubricating oil in the oil tank, and at the same time, the air entering the oil tank can be dried and foreign matter filtered.

[0019] 2. With the cooperation of the tee pipe, the multi-way pipe, the third hose and the nozzle, the present invention can spray the extracted lubricating oil on the surface of the single-head screw rod. Subsequently, with the cooperation of the U-shaped block, the baffle, the guide hole and the guide plate, the lubricating oil sprayed on the surface of the single-head screw rod will not splash. At the same time, the excess lubricating oil left on the single-head screw rod can be fed to the corresponding storage tank. When the door body is opened and closed several times, each part of the single-head screw rod and each part of the inner wall of the corresponding threaded groove can be stained with lubricating oil.

[0020] 3. The present invention provides a sliding door mechanism, which allows passengers inside and outside the train to get on and off the train. It has a simple structure and good use effect. When the door body needs to be opened, the PLC controller, electric push rod, first slider, first slide groove and limit rod in the cab are directly used to realize the door body moving out from the inside of the rectangular hole, the limit block moves out from the inside of the limit groove, the slot and the rectangular column are docked, and then the horizontal movement operation of the door body is realized with the cooperation of the motor, the second slide groove, the second slider, the slot, the first slide groove, the first slider, the electric push rod and the rectangular column. Similarly, to close the door, it is only necessary to use the PLC controller in the cab to control the motor to reverse and the telescopic end of the electric push rod to retract, so that the door body moves back to the inside of the rectangular hole, and then the electromagnet, the limit block, the electric push rod, the first slider, the limit rod, the first slide groove and the limit groove are used to realize the door body being stably fixed inside the rectangular hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a train external sliding door driving mechanism according to the present invention;

[0022] Figure 2 This is a perspective view from another angle of a train external sliding door driving mechanism of the present invention;

[0023] Figure 3 This is a partial perspective view of a train external sliding door driving mechanism according to the present invention;

[0024] Figure 4This is a partial perspective view from another angle of a train external sliding door driving mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of a U-shaped block, a baffle, a guide plate and a mounting hole of a train external sliding door drive mechanism according to the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of a material storage pipe, an adsorption layer and an electric valve of a train external sliding door drive mechanism of the present invention;

[0027] Figure 7 This is a partial perspective view of a train external sliding door drive mechanism according to the present invention from a side view;

[0028] Figure 8 The present invention is a train external sliding door driving mechanism Figure 7 A magnified stereogram at center;

[0029] Figure 9 This is a partial three-dimensional view from a top view of a train external sliding door driving mechanism according to the present invention;

[0030] Figure 10 The present invention is a train external sliding door driving mechanism Figure 9 The enlarged stereogram at B in the middle;

[0031] Figure 11 This is a schematic diagram of the three-dimensional structure of a second slide groove, a baffle and a rectangular column of a train external sliding door driving mechanism according to the present invention;

[0032] Figure 12 This is a schematic diagram of the three-dimensional structure of a door body, a first sliding groove, a thread groove and a clamping groove of a train external sliding door driving mechanism of the present invention;

[0033] Figure 13 This is a three-dimensional diagram of a limit block of a train external sliding door drive mechanism according to the present invention.

[0034] In the figure: 1. Sliding door mechanism; 101. Door frame; 102. Housing; 103. Rectangular hole; 104. Door body; 105. Limiting groove; 106. First mounting groove; 107. Limiting block; 108. Second mounting groove; 109. Electromagnet; 110. Cover plate; 111. First slide groove; 112. First slider; 113. Electric push rod; 114. Limiting plate; 115. Limiting rod; 116. Second slide groove; 117. Second slider; 118. Motor; 119. Single-head screw rod; 120. Threaded groove; 121. Baffle; 122. Rectangular column; 123 , card slot; 124, wire hole; 125, placement slot; 2, auxiliary mechanism; 201, rectangular slot; 202, porous plate; 203, storage slot; 204, first sealing cover; 205, block; 206, oil tank; 207, oil pump; 208, storage pipe; 209, adsorption layer; 210, electric valve; 211, second sealing cover; 212, conduit groove; 213, three-way pipe; 214, multi-way pipe; 215, U-shaped block; 216, block; 217, guide plate; 218, mounting hole; 219, nozzle; 220, servo electric cylinder; 221, guide hole. Implementation Method

[0035] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1-13 As shown, the present invention provides a technical solution: a train external sliding door driving mechanism, comprising a sliding door mechanism 1, on which an auxiliary mechanism 2 is provided;

[0037] The auxiliary mechanism 2 includes a rectangular groove 201, two U-shaped blocks 215 and two servo electric cylinders 220. The notch of the rectangular groove 201 is installed with a porous plate 202. The inner wall of the rectangular groove 201 is provided with three storage grooves 203. The notch of the upper storage groove 203 and the notch of the lower storage groove 203 are both installed with a first sealing cover 204. An oil tank 206 is provided inside the middle storage groove 203. An oil pump 207 is installed at the bottom of the inner wall of the middle storage groove 203. A storage pipe 208 is installed at the input end of the oil tank 206. An adsorption layer 209 is provided inside the storage pipe 208. An electric valve 210 is installed at the input end of the storage pipe 208. A second sealing cover is installed at the feed port of the storage pipe 208. 211, the inner wall of the rectangular groove 201 and the front surface of the porous plate 202 are both provided with a conduit groove 212, a tee pipe 213 is arranged between the inside of the two conduit grooves 212, and the two output ends of the tee pipe 213 are installed with a multi-way pipe 214, and each U-shaped block 215 is fixed with a baffle 216 near the edges on both sides of the inside, and the front surface of the inner wall and the rear surface of the inner wall of the two U-shaped blocks 215 are fixed with a guide plate 217, and the top of the inner wall of each U-shaped block 215 is evenly distributed with a plurality of mounting holes 218, and a nozzle 219 is installed inside each mounting hole 218, and the top of the inner wall of the upper storage tank 203 and the top of the inner wall of the lower storage tank 203 are both provided with a guide hole 221.

[0038] according to Figure 3-Figure 5 and Figure 7-10 As shown, the input end of the oil pump 207 is connected to the output end of the oil tank 206 through a first hose, the output end of the oil pump 207 is connected to the input end of the three-way pipe 213 through a second hose, and the input end of each nozzle 219 is respectively connected to each output end of the two multi-way pipes 214 through a third hose. The bottom of the telescopic end of the two servo electric cylinders 220 is respectively installed on the top of the two U-shaped blocks 215. Under the action of the servo electric cylinder 220, the U-shaped block 215 connected thereto can be driven to move up and down.

[0039] according to Figure 3 and Figure 4 As shown, blocks 205 are fixed inside the upper storage tank 203 and the lower storage tank 203, and the top of the inner walls of the two blocks 205 do not contact the top of the inner wall of the upper storage tank 203 and the top of the inner wall of the lower storage tank 203, so that under the action of the blocks 205, the lubricating oil collected in the storage tank 203 can be prevented from flowing out from the interior of the storage tank 203 when the first sealing cover 204 is taken out from the notch of the corresponding storage tank 203.

[0040] according to Figures 1-4 and Figure 7-Figure 9As shown, the sliding door mechanism 1 includes a door frame 101, a shell 102 is installed on the front surface of the door frame 101, a rectangular groove 201 is opened on the rear surface of the door frame 101, and a placement groove 125 is opened on the front surface of the door frame 101. Two servo electric cylinders 220 are respectively installed on the top of the inner wall of the two placement grooves 125, and the bottoms of the two U-shaped blocks 215 are respectively in contact with the inner upper side surfaces of the two placement grooves 125. The inner upper side surfaces of the two placement grooves 125 are respectively connected to the inlets of the two guide holes 221. Under the action of the guide holes 221, the excess lubricating oil flowing down from the single-head screw rod 119 can be diverted to the corresponding storage groove 203.

[0041] according to Figure 1-Figure 3 、 Figure 5 、 Figure 7-Figure 9 and Figure 12 As shown, the input ends of the two multi-way tubes 214 are fixedly passed through the inner walls of the two placement slots 125 respectively, and a rectangular hole 103 is provided on the front surface of the door frame 101. A door body 104 is provided inside the rectangular hole 103. One side of the door body 104 movably passes through the inner wall of the rectangular hole 103, and the two ends on one side of the door body 104 extend to the inside of the two placement slots 125 respectively. Two card slots 123 are provided on the front surface of the door body 104, and limiting slots 105 are provided on the top of the inner wall of the rectangular hole 103 and the bottom of the inner wall of the rectangular hole 103, so that the limiting block 107 can be prevented from moving left and right under the action of the limiting slot 105.

[0042] according to Figures 1-4 、 Figure 7-Figure 9 、 Figure 12 and Figure 13 As shown, a first mounting groove 106 is provided on the rear surface of the door body 104 near the bottom and on the rear surface of the door body 104 near the top, and a limiting block 107 is installed inside the two first mounting grooves 106. The opposite ends of the two limiting blocks 107 are slidably connected to the inside of the two limiting grooves 105 respectively, and two second mounting grooves 108 are provided on the front surface of the door frame 101. The inner walls of the two second mounting grooves 108 are respectively connected to the inner walls of the two limiting grooves 105, so that the magnetic end of the electromagnet 109 can contact the surface of the limiting block 107 with the cooperation of the second mounting groove 108 and the limiting groove 105.

[0043] according to Figures 1-4 、 Figure 7-Figure 9 and Figure 12As shown, electromagnets 109 are installed inside the two second mounting grooves 108, and the magnetic ends of the two electromagnets 109 are in contact with the opposite ends of the two limit blocks 107 respectively. Cover plates 110 are installed at the notches of the two second mounting grooves 108, and two symmetrical first sliding grooves 111 are provided on the rear surface of the door body 104. With the cooperation of the first sliding grooves 111 and the first slider 112, the stability of the horizontal movement of the door body 104 can be further improved.

[0044] according to Figure 1-Figure 7 As shown, the interior of the two first sliding grooves 111 are slidably connected with the first slider 112, the top of the inner wall of the two placement grooves 125 are installed with an electric push rod 113, and the two end heads on one side of the door body 104 are installed with a limiting plate 114. The inner walls of the two placement grooves 125 are fixed with a limiting rod 115, and one end of the two limiting rods 115 are movable through the rear surface of the door body 104, so that the electric push rod 113 can drive the door body 104 to perform a stable movement operation with the cooperation of the limiting rod 115, the first slider 112 and the limiting plate 114.

[0045] according to Figures 1-4 and Figure 7-12 As shown, two second sliding grooves 116 are provided on one side of the inner wall of the two placement grooves 125 and one side of the inner wall of the shell 102. The four second sliding grooves 116 are divided into two groups. A second slider 117 is slidably connected between the inside of each group of second sliding grooves 116. A motor 118 is installed on the surface of the two second sliders 117. The output ends of the two motors 118 are installed with a single-headed screw rod 119. The end of the single-headed screw rod 119 away from the motor 118 does not contact the limit rod 115. The ends of the two single-headed screw rods 119 away from the motor 118 are movable through one side of the two limit plates 114 respectively. Threaded grooves 120 are provided on two ports on one side of the door body 104. The door body 104 can be driven to move back and forth horizontally with the cooperation of the threaded groove 120, the single-headed screw rod 119, the slot 123, the rectangular column 122 and the motor 118.

[0046] according to Figures 1-4 、 Figure 7 、 Figure 8 and Figure 10-12As shown, the ends of the two single-head screw rods 119 away from the motor 118 are respectively threadedly sleeved on the inside of the two threaded grooves 120, and a baffle 121 is installed at the opening of the shell 102. Two symmetrical rectangular columns 122 are fixed to the front surface of the inner wall of the shell 102, and the two rectangular columns 122 are respectively matched with the two card slots 123. The bottom of the inner wall and the rear surface of the inner wall of the two placement slots 125 are provided with wire holes 124, wherein the two wire holes 124 are respectively connected to the inner walls of the two second installation slots 108, so that under the action of the wire holes 124, the electromagnet 109 installed in the second installation slot 108, the motor 118 in the placement slot 125, the servo electric cylinder 220 and the electric push rod 113 can be electrically connected to the PLC controller in the cab.

[0047] The effect achieved by the entire mechanism is: when the train needs to use an external sliding door, the external sliding door is directly installed on the train using the tools prepared by the staff, and then the two electromagnets 109, two electric push rods 113, two motors 118, oil pumps 207, electric valves 210 and two servo electric cylinders 220 are connected to the PLC controller in the train control room by using the cooperation of the wire hole 124 and the porous plate 202. Then, the porous plate 202 is opened, the oil tank 206 is taken out, and then an appropriate amount of lubricating oil is injected into the inside of the oil tank 206. Then, the output end of the oil tank 206 is connected to the input end of the first hose. When the oil tank 206 completes the oil filling operation, the oil tank 206 is directly placed back to the initial position and then opened. The second sealing cover 211 is then placed into the adsorption layer 209 inside the storage tube 208, and then the second sealing cover 211 is installed back to the initial position, and then the porous plate 202 is installed back to the initial position, and then the decorative plate is used to decorate between the train and the external sliding door. When everything is ready and the train arrives at the station and needs to get on and off passengers, the train driver can use the PLC controller in the cab to control the two electromagnets 109 to close, and then control the two electric push rods 113 to start synchronously. At this time, each electric push rod 113 that is started will directly drive the door body 104 to move out from the inside of the rectangular hole 103 under the cooperation of the corresponding limit rod 115, the first slide groove 111 and the first slider 112. At this time, the moving door body 104 will Drive the two limit blocks 107 to move out from the inside of the two limit grooves 105 respectively, and the moving door body 104 will also drive the single-head screw rod 119 and the motor 118 to move under the cooperation of the thread groove 120, the limit plate 114, the second slide groove 116 and the second slider 117. At the same time, the slot 123 on the door body 104 will also continue to move in the direction of the rectangular column 122. When the first slider 112 moves to a point where it cannot move, the PLC controller in the cab will directly and synchronously close the two electric push rods 113. At this time, the side of the door body 104 close to the limit block 107 is just on the same horizontal plane as the front surface of the door frame 101. At the same time, the limit rod 115 is just moved out from the inside of the door body 104, and the slot 123 is just in line with the rectangular column 122. When the door body 104 is completely connected to the interior of the shell 102, the PLC controller in the cab will directly and synchronously control the two motors 118 to start. At this time, the two started motors 118 will directly drive the single-head screw rod 119 connected thereto to rotate under the cooperation of the corresponding second slide groove 116 and the second slider 117. The two rotating single-head screw rods 119 will directly drive the door body 104 to move to the interior of the shell 102 under the cooperation of the two thread grooves 120, the two card slots 123 and the two rectangular columns 122. When the door body 104 is completely moved to the interior of the shell 102, the PLC controller in the cab will directly and synchronously turn off the two motors 118.At this time, the passengers inside the train can get on and off the train. When the train needs to move, the staff in the cab can use the PLC controller in the cab to control the two motors 118 to start and reverse, so that the door body 104 moves out of the interior of the shell 102. When the door body 104 moves to the position where the electric push rod 113 previously drove the door body 104 out of the interior of the rectangular hole 103, the PLC controller in the cab will directly and synchronously turn off the two motors 118, and then the PLC controller in the cab will synchronously start the two electric push rods 113 again, so that the door body 104 is reset and moves back to the interior of the rectangular hole 103. When the door body 104 is reset to its initial position, the limit block 107 is also reset to the interior of the limit slot 105, and the card slot 123 is also aligned with the matrix. When the door body 104 is reset to its initial position, the PLC controller in the cab will directly and synchronously close the two electric push rods 113, and then synchronously start the two electromagnets 109. When the two electromagnets 109 are started, the electromagnets 109 will directly magnetically fix the limit blocks 107 in contact with them. At this time, the door body 104 will not shake when the train is running. When the sliding door mechanism 1 of the external sliding door is used for a long time, the position of the single-head screw rod 119 on the sliding door mechanism 1 may be reduced due to the reduced lubrication effect, resulting in an increase in the friction between the contact end of the single-head screw rod 119 and the thread groove 120, which will cause the single-head screw rod 119 and the thread groove 120 to move. 0 is damaged due to increased friction. At this time, if you want to maintain the lubrication effect of the single-head screw rod 119, when the door body 104 is closed, the driver can directly use the PLC controller in the cab to control the two servo electric cylinders 220 to start. At this time, starting each servo electric cylinder 220 will directly drive the U-shaped block 215 connected thereto to move downward, and the downward-moving U-shaped block 215 will also drive the baffle 216 and the guide plate 217 connected thereto to move. When the bottoms of the two U-shaped blocks 215 are respectively in contact with the inner upper surfaces of the two placement grooves 125, the PLC controller in the cab will directly and synchronously close the two servo electric cylinders 220, and then directly open the electric valve 210 and start the oil pump 207. At this time, the started oil pump 207 will directly Under the action of the first hose, the lubricating oil inside the oil tank 206 is directly extracted. When the lubricating oil moves out of the oil tank 206, the air in the intermediate storage tank 203 will directly enter the interior of the electric valve 210, and then the air entering the interior of the electric valve 210 will directly enter the interior of the storage pipe 208 and contact the adsorption layer 209. When the air passes through the interior of the adsorption layer 209, the adsorption layer 209 will adsorb and remove the moisture in the air. Then the treated air will directly enter the interior of the oil tank 206, and the extracted lubricating oil will be directly transported to the interior of the three-way pipe 213 through the second hose, and then be diverted and directed to the interior of the two multi-way pipes 214, and then be diverted again and directed to the third hose connected to the multi-way pipe 214.Then it is transported to the inside of each nozzle 219, and then sprayed on the surface of the two single-head screw rods 119. Finally, the excess lubricating oil left on the single-head screw rod 119 will be directly guided to the inside of the corresponding storage tank 203 through the corresponding guide hole 221 for collection and storage. Then the driver uses the PLC controller in the cab to turn off the oil pump 207 and the electric valve 210. At the same time, through the cooperation of the two electric push rods 113, the two U-shaped blocks 215 are reset to the initial position and closed synchronously under control. At this time, when the door body 104 is opened and closed, the single-head screw rod 119 will contact the corresponding thread groove 120. At this time, each part of the single-head screw rod 119 and the thread groove 120 can be stained with lubricating oil. That is, when the external sliding door drive mechanism is used, there will be no poor lubrication effect of the components, which will cause the components of the drive mechanism to wear due to increased friction, thereby reducing the service life of the drive mechanism and affecting the use effect of the train external sliding door.

[0048] Among them, the electromagnet 109, the electric push rod 113, the motor 118, the oil pump 207, the electric valve 210, the adsorption layer 209 (composed of zeolite 4A molecular sieve particles), the nozzle 219 and the servo electric cylinder 220 are all existing technologies and will not be explained in detail here.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A train external sliding door drive mechanism, characterized by: It comprises a sliding door mechanism (1), wherein the sliding door mechanism (1) is provided with an auxiliary mechanism (2); The auxiliary mechanism (2) comprises a rectangular groove (201), two U-shaped blocks (215) and two servo electric cylinders (220), the notch of the rectangular groove (201) is installed with a porous plate (202), the inner wall of the rectangular groove (201) is provided with three storage grooves (203), the notch of the upper storage groove (203) and the notch of the lower storage groove (203) are both installed with a first sealing cover (204), the inner wall of the middle storage groove (203) is provided with a sealing cover (204), and the inner wall of the middle storage groove (203) is provided with a sealing cover (204). An oil tank (206) is provided at the bottom of the inner wall of the storage tank (203) in the middle, and an oil pump (207) is installed at the bottom of the inner wall of the storage tank (203). A material storage pipe (208) is installed at the input end of the oil tank (206). An adsorption layer (209) is provided inside the material storage pipe (208). An electric valve (210) is installed at the input end of the material storage pipe (208). A second sealing cover (211) is installed at the feed port of the material storage pipe (208). The rectangular groove (201) The inner wall and the front surface of the porous plate (202) are both provided with a conduit groove (212), a three-way pipe (213) is provided between the insides of the two conduit grooves (212), and the two output ends of the three-way pipe (213) are both installed with a multi-way pipe (214), a baffle (216) is fixed near the edges on both sides of the inside of each U-shaped block (215), and a guide plate (217) is fixed on the inner wall front surface and the inner wall rear surface of the two U-shaped blocks (215), and a plurality of mounting holes (218) are evenly distributed on the top of the inner wall of each U-shaped block (215), and a nozzle (219) is installed inside each mounting hole (218), and a guide hole (221) is provided on the inner wall top of the upper storage tank (203) and the inner wall top of the lower storage tank (203), and the bottom of the telescopic end of the two servo electric cylinders (220) is respectively installed on the top of the two U-shaped blocks (215); The sliding door mechanism (1) comprises a door frame (101), a housing (102) is mounted on the front surface of the door frame (101), a placement groove (125) is provided on the front surface of the door frame (101), the inner upper surfaces of the two placement grooves (125) are respectively connected to the inlets of the two guide holes (221), a rectangular hole (103) is provided on the front surface of the door frame (101), a door body (104) is provided inside the rectangular hole (103), and two side surfaces of the door body (104) are provided. The ports are each provided with a threaded groove (120), and two second sliding grooves (116) are provided on one side of the inner wall of the two placement grooves (125) and one side of the inner wall of the shell (102). The four second sliding grooves (116) are divided into two groups. The interior of each group of the second sliding grooves (116) is slidably connected with a second slider (117). The surfaces of the two second sliders (117) are both installed with a motor (118), and the output ends of the two motors (118) are both installed with a single-head screw rod (119); When the air passes through the inside of the adsorption layer (209), the adsorption layer (209) will absorb and remove the moisture in the air, and then the treated air will directly enter the inside of the oil tank (206), and the extracted lubricating oil will be directly transported to the inside of the three-way pipe (213) through the second hose, and then be diverted to the inside of the two multi-way pipes (214), and then be diverted again to the third hose connected to the multi-way pipe (214), and then transported to the inside of each nozzle (219), and then sprayed on the surface of the two single-head screw rods (119), and finally the excess lubricating oil left on the single-head screw rod (119) will be directly guided to the inside of the corresponding storage tank (203) through the cooperation of the corresponding guide hole (221) for collection and storage.

2. The train external sliding door drive mechanism according to claim 1, characterized in that: The input end of the oil pump (207) is connected to the output end of the oil tank (206) via a first hose, the output end of the oil pump (207) is connected to the input end of the three-way pipe (213) via a second hose, and the input end of each nozzle (219) is connected to each output end of the two multi-way pipes (214) via a third hose.

3. The train external sliding door drive mechanism according to claim 1, characterized in that: Stoppers (205) are fixed inside the upper storage tank (203) and the lower storage tank (203), and the tops of the inner walls of the two stoppers (205) do not contact the tops of the inner walls of the upper storage tank (203) and the lower storage tank (203).

4. The train external sliding door driving mechanism according to claim 1, characterized in that: The rectangular groove (201) is opened on the rear surface of the door frame (101), the two servo electric cylinders (220) are respectively installed on the top of the inner wall of the two placement grooves (125), and the bottoms of the two U-shaped blocks (215) are respectively in contact with the inner upper side surfaces of the two placement grooves (125).

5. The train external sliding door driving mechanism according to claim 1, characterized in that: The input ends of the two multi-way tubes (214) are fixedly passed through the inner walls of the two placement grooves (125), and one side of the door body (104) is movable through the inner wall of the rectangular hole (103), and the two ends of one side of the door body (104) extend to the inside of the two placement grooves (125), respectively. Two clamping grooves (123) are provided on the front surface of the door body (104), and the top of the inner wall of the rectangular hole (103) and the bottom of the inner wall of the rectangular hole (103) are both provided with limiting grooves (105).

6. The train external sliding door driving mechanism according to claim 5, characterized in that: A first mounting groove (106) is provided on the rear surface of the door body (104) near the bottom and on the rear surface of the door body (104) near the top, and a limiting block (107) is installed inside the two first mounting grooves (106), and the opposite ends of the two limiting blocks (107) are respectively slidably connected to the inside of the two limiting grooves (105), and two second mounting grooves (108) are provided on the front surface of the door frame (101), and the inner walls of the two second mounting grooves (108) are respectively connected to the inner walls of the two limiting grooves (105).

7. The train external sliding door driving mechanism according to claim 6, characterized in that: An electromagnet (109) is installed inside each of the two second installation grooves (108), and the magnetic ends of the two electromagnets (109) are in contact with the opposite ends of the two limit blocks (107) respectively. A cover plate (110) is installed at the notch of each of the two second installation grooves (108), and two symmetrical first sliding grooves (111) are provided on the rear surface of the door body (104).

8. The train external sliding door driving mechanism according to claim 7, characterized in that: The interiors of the two first sliding grooves (111) are slidably connected to first sliders (112), the tops of the inner walls of the two placement grooves (125) are both installed with electric push rods (113), both ends of one side of the door body (104) are installed with limiting plates (114), the inner walls of the two placement grooves (125) are both fixed with limiting rods (115), and one end of the two limiting rods (115) is movable through the rear surface of the door body (104).

9. The train external sliding door driving mechanism according to claim 8, characterized in that: One end of the two single-head screw rods (119) away from the motor (118) is movable through one side of the two limit plates (114).

10. The train external sliding door driving mechanism according to claim 6, characterized in that: The ends of the two single-head screw rods (119) away from the motor (118) are respectively threadedly sleeved inside the two threaded grooves (120), and a baffle (121) is installed at the opening of the shell (102). Two symmetrical rectangular columns (122) are fixed on the front surface of the inner wall of the shell (102), and the two rectangular columns (122) are matched with the two card slots (123) respectively. The bottom of the inner wall and the rear surface of the inner wall of the two placement slots (125) are provided with wire holes (124), wherein the two wire holes (124) are respectively connected to the inner walls of the two second installation slots (108).

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