Electric flat carriage with replaceable rails

Abstract

The utility model relates to the technical field of electric flat cars, and provides an electric flat car with replaceable tracks, which comprises a car frame, a longitudinal track, a transverse track, a longitudinal traveling mechanism, a transverse traveling mechanism, a lifting mechanism and a transmission mechanism, wheel passing grooves are formed in the staggered positions of the longitudinal rails and the transverse rails, the longitudinal traveling mechanism and the transverse traveling mechanism are both arranged at the bottom of the frame, and the longitudinal traveling mechanism and the transverse traveling mechanism are used for controlling the electric flat carriage to travel on the longitudinal rails and the transverse rails correspondingly. The four lifting mechanisms are arranged at the bottom of the frame and used for controlling lifting of the transverse traveling mechanism, the longitudinal traveling mechanism and the frame, and the transmission mechanism is used for providing power for the lifting mechanisms and transmitting power to the lifting mechanisms. By means of the technical scheme, the problem that in the prior art, an electric flat car cannot switch running rails on a cross rail is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric flat cars, and in particular to an electric flat car with replaceable tracks. Background Art

[0002] Electric flat cars are a type of rail-mounted electric transport vehicle within a factory. They are easy to operate, run smoothly, and have a strong carrying capacity. They are used to transport goods within a factory or between factories over short distances. They are widely used in industrial production and logistics. In order for electric flat cars to travel along a predetermined route, crisscrossing tracks are usually laid on the floor of the factory, and the wheels are driven by motors to travel on the tracks.

[0003] When the electric flat car works on a cross track, after the cargo transportation work on one line stops, if the electric flat car on this line cannot change the track, it will be idle, causing a waste of the company's transportation capacity. Therefore, the utility model proposes an electric flat car with a changeable track. Utility Model Content

[0004] The utility model provides an electric flat car with changeable tracks, which solves the problem in the related art that the electric flat car cannot switch the running track on the cross track.

[0005] The technical solution of the utility model is as follows: an electric flat car with replaceable tracks, comprising a frame, a longitudinal running mechanism, a longitudinal track, a transverse track, a transverse running mechanism, a lifting mechanism and a transmission mechanism, wherein the longitudinal track is fixedly mounted on the ground, the longitudinal running mechanism is arranged at the bottom of the frame, and four wheels are arranged on the longitudinal running mechanism, and the four wheels are all in rolling cooperation with the longitudinal track, the transverse track is fixedly mounted on the ground, the transverse running mechanism is arranged at the bottom of the frame, and the transverse running mechanism is used to control the electric flat car to travel on the transverse track, the lifting mechanism is arranged in four, and the four lifting mechanisms are arranged at the bottom of the frame to control the lifting and lowering of the transverse running mechanism, the longitudinal running mechanism and the frame, and the transmission mechanism is arranged at the bottom of the frame, and the transmission mechanism is used to provide and transmit power to the lifting mechanism.

[0006] Preferably, the lifting mechanism includes a lead screw, a worm gear, a housing, a thrust bearing, and a worm shaft. Four lead screws are provided, and the four lead screws are all threadedly connected to the bottom end of the vehicle frame. Four worm gears are provided, and threaded holes are respectively formed in the middle of the four worm gears. The four threaded holes are respectively in threaded cooperation with the four lead screws. A housing is provided outside each worm gear, and each housing is fixedly connected to the bottom end of the vehicle frame. Bearing holes are respectively formed in the top end and the bottom end of each housing. Thrust bearings are respectively provided at the upper and lower ends of each worm gear. Each thrust bearing is sleeved outside the lead screw, and the outer ring of each thrust bearing is fixedly connected to the housing. The thrust bearing is used for axially supporting the worm gear. Four worm shafts are provided, and the four worm shafts are all rotatably connected to the bottom end of the vehicle frame. The worm on each worm shaft meshes with the worm gear. When the worm shaft rotates, the worm gear can be driven to rotate. When the worm gear rotates, the lead screw can be driven to helically lift and lower.

[0007] Preferably, the transmission mechanism includes a motor, a transmission shaft, a first bevel gear, and a second bevel gear. The motor is fixedly connected to the bottom end of the vehicle frame. Two transmission shafts are provided, and the two transmission shafts are all rotatably connected to the bottom end of the vehicle frame. One end of each transmission shaft is respectively fixedly connected to the two output ends of the motor. A first bevel gear is fixedly connected to the other end of each transmission shaft. A second bevel gear is fixedly connected to the end of each worm shaft away from the worm. The second bevel gear meshes with the first bevel gear.

[0008] Furthermore, the lateral traveling mechanism includes a base, a support plate, a driving mechanism, a driving shaft, a driving wheel, a driven shaft, and a driven wheel. The bottom ends of the four lead screws are all fixedly connected with support plates. Four mating holes are formed in the top end of the base. The base is hung on the support plate through the mating holes. The driving mechanism is fixedly installed at the bottom end of the base. Two driving shafts are provided, and the two driving shafts are all rotatably connected to the bottom end of the base. One end of each driving shaft is respectively fixedly connected to the two output ends of the driving mechanism. A driving wheel is fixedly connected to the other end of each driving shaft. The two driving wheels are both in rolling cooperation with the lateral track. The driven shaft is rotatably connected to the bottom end of the base. Two driven wheels are provided, and the two driven wheels are symmetrically fixedly connected to both ends of the driven shaft. The two driven wheels are both in rolling cooperation with the lateral track.

[0009] Still further, protective covers are respectively sleeved outside the two first bevel gears and the four second bevel gears, and the two protective covers are both fixedly connected to the bottom end of the vehicle frame.

[0010] Still further, a wheel passing groove is formed at the position where the longitudinal track and the lateral track intersect.

[0011] The beneficial effects of the present utility model are as follows:

[0012] In the present utility model, when the electric flat car needs to change the track, the electric flat car is parked at the intersection of the cross tracks. The motor drives the transmission shaft and the first bevel gear to rotate, and the first bevel gear drives the second bevel gear and the worm shaft to rotate. Then the worm drives the worm wheel to rotate, and the worm wheel drives the lead screw to spiral downwards. The support plate on the lead screw drives the base to descend. When the driving wheel and the driven wheel in the transverse traveling mechanism come into contact with the transverse track, the bottom end of the support plate contacts the bottom end of the mating hole on the base, and the lead screw cannot continue to descend. The worm wheel drives the vehicle frame and the longitudinal traveling mechanism to rise. When the four wheels of the longitudinal traveling mechanism are completely separated from the longitudinal track, the transverse traveling mechanism can drive the electric flat car to travel on the transverse track. Compared with the existing electric flat car that cannot switch the running track on the cross tracks, in the present utility model, the electric flat car switches the traveling mechanism through the lifting mechanism and the transmission mechanism, so that the electric flat car can switch the track and run on the cross tracks, improving the utilization rate of the electric flat car and reducing the waste of the enterprise's transport capacity. Description of the Drawings

[0013] The following further details the present utility model in conjunction with the drawings and specific embodiments.

[0014] Figure 1 It is a schematic structural diagram of a partial cross-section of the present utility model;

[0015] Figure 2 It is a schematic structural diagram of the whole of the present utility model;

[0016] Figure 3 It is a schematic structural diagram of a partial cross-section of the cooperation between the lifting mechanism and the transmission mechanism of the present utility model;

[0017] Figure 4 For the present utility model Figure 3 A partial enlarged schematic structural diagram at position A;

[0018] Figure 5 It is a schematic structural diagram of a partial cross-section of the cooperation between the lead screw and the transverse traveling mechanism of the present utility model.

[0019] In the figure: 1, vehicle frame; 2, longitudinal traveling mechanism; 3, longitudinal track; 4, transverse track; 5, protective cover; 101, lead screw; 102, worm wheel; 103, outer shell; 104, thrust bearing; 105, worm shaft; 201, motor; 202, transmission shaft; 203, first bevel gear; 204, second bevel gear; 301, base; 302, support plate; 303, driving mechanism; 304, driving shaft; 305, driving wheel; 306, driven shaft; 307, driven wheel. Specific Embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0021] Please refer to Figures 1 to 5 , this embodiment provides an electric flat car with replaceable tracks, including a frame 1, a longitudinal traveling mechanism 2, a longitudinal track 3, a transverse track 4, a transverse traveling mechanism, a lifting mechanism, and a transmission mechanism. The longitudinal track 3 is fixedly installed on the ground. The longitudinal traveling mechanism 2 is arranged at the bottom of the frame 1, and four wheels are arranged on the longitudinal traveling mechanism 2. All four wheels are in rolling cooperation with the longitudinal track 3. The transverse track 4 is fixedly installed on the ground. A wheel passing groove is opened at the intersection of the longitudinal track 3 and the transverse track 4. The transverse traveling mechanism is arranged at the bottom of the frame 1 and is used to control the electric flat car to travel on the transverse track 4. Four lifting mechanisms are provided, and the four lifting mechanisms are arranged at the bottom of the frame 1 and are used to control the lifting of the transverse traveling mechanism, the longitudinal traveling mechanism 2, and the frame 1. The transmission mechanism is arranged at the bottom of the frame 1 and is used to provide and transmit power to the lifting mechanism.

[0022] Please refer to Figures 1 to 4 , wherein, the lifting mechanism includes a lead screw 101, a worm gear 102, and a worm shaft 105. Four lead screws 101 are provided, and the four lead screws 101 are all threadedly connected to the bottom end of the frame 1. Four worm gears 102 are provided, and threaded holes are respectively opened in the middle of the four worm gears 102. The four threaded holes are respectively in threaded cooperation with the four lead screws 101. An outer shell 103 is arranged outside each worm gear 102, and each outer shell 103 is fixedly connected to the bottom end of the frame 1. Bearing holes are respectively opened at the top and bottom of each outer shell 103. Thrust bearings 104 are arranged at the upper and lower ends of each worm gear 102. Each thrust bearing 104 is sleeved outside the lead screw 101, and the outer ring of each thrust bearing 104 is fixedly connected to the outer shell 103. The thrust bearing 104 is used for axially supporting the worm gear 102. Four worm shafts 105 are provided, and the four worm shafts 105 are all rotatably connected to the bottom end of the frame 1. The worms on each worm shaft 105 are meshed with the worm gear 102. When the worm shaft 105 rotates, it can drive the worm gear 102 to rotate. When the worm gear 102 rotates, it can drive the lead screw 101 to helically lift.

[0023] Please refer to Figures 1 to 3, wherein the transmission mechanism includes a motor 201, a transmission shaft 202, a first bevel gear 203 and a second bevel gear 204. The motor 201 is fixedly connected to the bottom end of the vehicle frame 1. There are two transmission shafts 202, and both transmission shafts 202 are rotatably connected to the bottom end of the vehicle frame 1. One end of each transmission shaft 202 is fixedly connected to two output ends of the motor 201 respectively. A first bevel gear 203 is fixedly connected to the other end of each transmission shaft 202. A second bevel gear 204 is fixedly connected to one end of each worm shaft 105 away from the worm. The second bevel gear 204 meshes with the first bevel gear 203. A protective cover 5 is provided outside two first bevel gears 203 and four second bevel gears 204, and both protective covers 5 are fixedly connected to the bottom end of the vehicle frame 1.

[0024] Please refer to Figure 1 , Figure 2 and Figure 5 , wherein the lateral traveling mechanism includes a base 301, a support plate 302, a driving mechanism 303, a driving shaft 304, a driving wheel 305, a driven shaft 306 and a driven wheel 307. The bottom ends of four lead screws 101 are fixedly connected with support plates 302. Four matching holes are opened at the top end of the base 301, and the base 301 is hung on the support plate 302 through the matching holes. The driving mechanism 303 is fixedly installed at the bottom end of the base 301. There are two driving shafts 304, and both driving shafts 304 are rotatably connected to the bottom end of the base 301. One end of each driving shaft 304 is fixedly connected to two output ends of the driving mechanism 303 respectively. A driving wheel 305 is fixedly connected to the other end of each driving shaft 304. Both driving wheels 305 are in rolling cooperation with the lateral track 4. The driven shaft 306 is rotatably connected to the bottom end of the base 301. There are two driven wheels 307, and both driven wheels 307 are symmetrically fixedly connected to both ends of the driven shaft 306. Both driven wheels 307 are in rolling cooperation with the lateral track 4.

[0025] In this embodiment, when the electric flat car needs to replace the transverse track 4, the electric flat car is parked at the intersection of the cross track. Then, the motor 201 is started. The motor 201 drives the two transmission shafts 202 to rotate. The first bevel gears 203 on the two transmission shafts 202 drive the second bevel gears 204 and the worm shaft 105 to rotate. Then, the worm on the worm shaft 105 drives the worm wheel 102 to rotate. The threaded hole in the middle of the worm wheel 102 drives the lead screw 101 to spiral down. The support plate 302 on the lead screw 101 drives the base 301 to descend together. When the driving wheel 305 and the driven wheel 307 in the transverse traveling mechanism come into contact with the transverse track 4, the bottom end of the support plate 302 contacts the bottom end of the mating hole on the base 301, and the lead screw 101 cannot continue to descend. The worm wheel 102 drives the vehicle frame 1 and the longitudinal traveling mechanism 2 to rise. When the four wheels of the longitudinal traveling mechanism 2 are completely separated from the longitudinal track 3, the motor 201 stops working. The transverse traveling mechanism can drive the electric flat car to travel on the transverse track 4. When the electric flat car needs to replace the longitudinal track 3, the motor 201 can be reversed according to the above operation, and the longitudinal traveling mechanism 2 and the vehicle frame 1 are driven to descend by the lifting mechanism, and then the transverse traveling mechanism is driven to rise, so as to switch the traveling track of the electric flat car.

[0026] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric flat car with a replaceable track, comprising a frame (1), a longitudinal running mechanism (2) and a longitudinal track (3), wherein the longitudinal track (3) is fixedly mounted on the ground, the longitudinal running mechanism (2) is arranged at the bottom of the frame (1), and the longitudinal running mechanism (2) is provided with four wheels, and the four wheels are all in rolling cooperation with the longitudinal track (3), characterized in that: Also includes: A transverse track (4), wherein the transverse track (4) is fixedly installed on the ground; A transverse running mechanism, the transverse running mechanism being arranged at the bottom of the vehicle frame (1), and being used for controlling the electric flat vehicle to run on the transverse track (4); A lifting mechanism, wherein four lifting mechanisms are provided, and the four lifting mechanisms are all provided at the bottom of the frame (1) and are used to control the lifting and lowering of the transverse travel mechanism, the longitudinal travel mechanism (2) and the frame (1); A transmission mechanism is arranged at the bottom of the frame (1), and is used to provide and transmit power to the lifting mechanism.

2. The track-changeable electric flat car according to claim 1, characterized in that: The lifting mechanism comprises: A screw rod (101), wherein four screw rods (101) are provided, and the four screw rods (101) are all threadedly connected to the bottom end of the vehicle frame (1); A worm wheel (102), wherein the worm wheels (102) are arranged in four numbers, and threaded holes are respectively provided in the middle of the four worm wheels (102), and the four threaded holes are respectively threadably matched with the four screw rods (101); A housing (103), wherein the exterior of each worm wheel (102) is provided with a housing (103), each housing (103) is fixedly connected to the bottom end of the vehicle frame (1), and each housing (103) has a bearing hole at the top and bottom ends; A thrust bearing (104), wherein the upper and lower ends of each worm wheel (102) are provided with a thrust bearing (104), each thrust bearing (104) is sleeved on the outside of the screw rod (101), and the outer ring of each thrust bearing (104) is fixedly connected to the housing (103), and the thrust bearing (104) is used to axially support the worm wheel (102); A worm shaft (105), wherein the worm shafts (105) are arranged in four numbers, and the four worm shafts (105) are all rotatably connected to the bottom end of the frame (1), and the worm on each of the worm shafts (105) is meshed with the worm wheel (102), and when the worm shaft (105) rotates, the worm wheel (102) can be driven to rotate, and when the worm wheel (102) rotates, the lead screw (101) can be driven to spirally rise and fall.

3. The track-changeable electric flat car according to claim 2, characterized in that: The transmission mechanism comprises: A motor (201), the motor (201) being fixedly connected to the bottom end of the vehicle frame (1); A transmission shaft (202), wherein two transmission shafts (202) are provided, and both of the two transmission shafts (202) are rotatably connected to the bottom end of the frame (1), and one end of each transmission shaft (202) is respectively fixedly connected to two output ends of the motor (201), and the other end of each transmission shaft (202) is fixedly connected to a bevel gear 1 (203); Bevel gear 2 (204), one end of each worm shaft (105) away from the worm is fixedly connected with bevel gear 2 (204), and the bevel gear 2 (204) is meshed with bevel gear 1 (203).

4. The track-changeable electric flat car according to claim 3, characterized in that: The lateral travel mechanism comprises: A base (301), the bottom ends of the four screw rods (101) are fixedly connected to a support plate (302), the top end of the base (301) is provided with four matching holes, and the base (301) is hung on the support plate (302) through the matching holes; A driving mechanism (303), wherein the driving mechanism (303) is fixedly mounted on the bottom end of the base (301); A driving shaft (304), wherein two driving shafts (304) are provided, and the two driving shafts (304) are both rotatably connected to the bottom end of the base (301), and one end of each driving shaft (304) is respectively fixedly connected to the two output ends of the driving mechanism (303), and the other end of each driving shaft (304) is fixedly connected to a driving wheel (305), and the two driving wheels (305) are both rollingly matched with the transverse track (4); A driven shaft (306), the driven shaft (306) being rotatably connected to the bottom end of the base (301); The driven wheel (307) is provided with two driven wheels (307), and the two driven wheels (307) are symmetrically fixedly connected to the two ends of the driven shaft (306), and the two driven wheels (307) are both in rolling cooperation with the transverse track (4).

5. The track-changeable electric flat car according to claim 4, characterized in that: The exteriors of the two bevel gears one (203) and the four bevel gears two (204) are both covered with protective covers (5), and the two protective covers (5) are both fixedly connected to the bottom end of the vehicle frame (1).

6. The track-changeable electric flat car according to claim 5, characterized in that: Wheel passing grooves are provided at staggered positions of the longitudinal track (3) and the transverse track (4).

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