Four-column type high-speed rail elevator with standby rail

Abstract

The utility model discloses a four-column type high-speed rail elevator with a spare rail, which comprises a main frame, a lifting support, a lifting rail, a support lifting mechanism, the spare rail and a rail lifting mechanism, the lifting support can be arranged in the main frame in an up-down sliding manner, the lifting rail is fixedly mounted at the upper end of the lifting support, and the support lifting mechanism is arranged on the spare rail. The lifting support is driven by the support lifting mechanism to ascend and descend, when the lifting support ascends to the set height, the two ends of the lifting track can be in butt joint with a main track of the power and free conveyor, the standby track and the track lifting mechanism are both installed at the upper end of the main rack, and the standby track is connected with the track lifting mechanism. The rail lifting mechanism can drive the standby rail to ascend to the position above the main rail of the power and free conveyor and can drive the standby rail to descend to the position of the main rail to be in butt joint with the main rail. In the production process, the situation that a conveying line of the power and free conveyor cannot conduct conveying normally due to the fact that the lifting track cannot be in normal butt joint with a main track of the power and free conveyor can be avoided.

Description

Technical Field

[0001] The utility model relates to a four-column high-speed rail elevator with a spare rail for use in conjunction with an accumulation conveyor. Background Art

[0002] At present, in the field of two-wheeler manufacturing, since the three major processes of welding, painting, and general assembly each have their own economic beats, general factories either adopt the method of setting up a temporary storage and turnover area at the line side or adopt the WBS and PBS storage lines, so that each production link can match the final general assembly beat. In the current situation where land costs are rising day by day, how to increase the output value per unit of land and improve space utilization rate has been taken seriously by more and more enterprises. Therefore, a rail elevator for use in conjunction with an accumulation conveyor that can be used for space layout is adopted. By using such a high-speed rail elevator, the vertical layout of the WBS line or PBS line can be efficiently realized, saving the space and site waste caused by climbing of traditional conveyor lines, making the workshop logistics channel smoother and the storage line layout more three-dimensional.

[0003] The rail elevator is installed on the traveling path of the main rail of the accumulation conveyor, and the main rail of the accumulation conveyor is disconnected at the position of the rail elevator. A conventional rail elevator generally includes a main frame, a drive assembly, a lifting bracket, a lifting rail, and a counterweight assembly. The lifting bracket is slidably arranged in the main frame, the lifting rail is fixedly installed at the upper end of the lifting bracket, stoppers and anti-reverse devices are provided on the lifting rail, the counterweight assembly is slidably arranged on the back of the main frame, the drive assembly is installed at the upper end of the main frame, a lifting chain is wound around the rotating sprocket of the drive assembly, one end of the lifting chain is connected to the counterweight assembly, and the other end is connected to the lifting bracket. The accumulation trolley is installed on the rail, the workpiece is hung on the accumulation trolley, and the accumulation trolley is pushed to move on the rail by a pusher on the drive chain of the accumulation conveyor.

[0004] When the rail elevator is in use, the drive assembly will drive the lifting bracket, the lifting rail, the accumulation trolley on the lifting rail, and the workpiece hung on the accumulation trolley to rise together. When rising to a set height, both ends of the lifting rail will be docked with the main rail of the accumulation conveyor, so that the accumulation trolley on the lifting rail together with the workpiece thereon can move onto the main rail, and other accumulation trolleys on the main rail can also pass through the rail elevator smoothly.

[0005] However, the existing rail elevator has the following defects:

[0006] During the production process, when the rail elevator breaks down and the lifting rail cannot be normally docked with the main rail of the accumulation conveyor, the conveyor line of the accumulation conveyor cannot be normally conveyed, because at this time the rail at the position of the rail elevator is disconnected and other accumulation trolleys cannot pass through, which will have a greater impact on production. Summary of the Invention

[0007] The object of the utility model is to provide a four-column high-speed track lift with a spare track, which can avoid the situation that the conveying line of the accumulation conveyor cannot operate normally during the production process due to the failure of the lifting track to be properly docked with the main track of the accumulation conveyor.

[0008] The object of the utility model is achieved by the following technical solutions:

[0009] A four-column high-speed track lift with a spare track, which comprises a main frame, a lifting bracket, a lifting track and a bracket lifting mechanism. The lifting bracket is slidably arranged in the main frame, the lifting track is fixedly installed at the upper end of the lifting bracket, and the lifting bracket is driven to lift by the bracket lifting mechanism. When the lifting bracket rises to a set height, both ends of the lifting track can be docked with the main track of the accumulation conveyor. It is characterized in that: it further comprises a spare track and a track lifting mechanism. The spare track and the track lifting mechanism are both installed at the upper end of the main frame. The spare track is connected with the track lifting mechanism. The track lifting mechanism can drive the spare track to rise above the main track of the accumulation conveyor and can drive the spare track to descend to the main track to be docked with the main track.

[0010] Further, the track lifting mechanism comprises a lifting cylinder which is vertically installed downward, and the lower end of the piston rod of the lifting cylinder is connected with the spare track.

[0011] Further, vertical guide rails are provided at the upper end of the main frame, and guide wheel sets are correspondingly provided on the spare track. The guide wheel sets are slidably connected with the vertical guide rails.

[0012] Further, the spare track is provided with a connecting plate protruding upward. The lower end of the piston rod of the lifting cylinder is connected with the connecting plate. A vertical rod is fixed on the upper surface of the connecting plate, and the guide wheel sets are installed on the vertical rod.

[0013] Further, a vertical limiting plate is provided on the lifting track. One side of the upper end of the limiting plate is provided with a bayonet. A rotating plate rotatably connected in the middle and a driving cylinder rotatably connected at the tail are provided at the upper end of the main frame. The piston rod of the driving cylinder is hinged to the upper end of the rotating plate. A clamping column is provided at the lower end of the rotating plate. When the lifting track rises to the set height, the driving cylinder can drive the rotating plate to rotate so that the clamping column is clamped into the bayonet.

[0014] Further, the bracket lifting mechanism comprises a driving assembly, a counterweight assembly and a lifting chain. The driving assembly is arranged at the upper end of the main frame. The driving assembly includes a motor, a rotating shaft connected to the motor and a rotary sprocket arranged on the rotating shaft. The counterweight assembly is slidably arranged on the back of the main frame. The lifting chain bypasses the rotary sprocket. One end of the lifting chain is connected with the counterweight assembly, and the other end is connected with the lifting bracket.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model is provided with a liftable spare track at the upper end of the main frame. When the track lift fails and the lift track cannot be normally docked with the main track of the accumulation conveyor, the track lifting mechanism can drive the spare track to descend to the position of the main track of the accumulation conveyor, dock with the main track, fill the disconnection position, ensure the coherence of the main track, so that other accumulation trolleys can still pass smoothly through the position of the track lift, avoiding the situation that the conveying line of the accumulation conveyor cannot convey normally, and providing better guarantee for production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view schematic diagram of the utility model;

[0018] Figure 2 is the side view schematic diagram of the utility model;

[0019] Figure 3 is the partial structure schematic diagram of the upper end of the main frame and the lifting bracket of the utility model;

[0020] Figure 4 is the structure schematic diagram of the spare track and the track lifting mechanism of the utility model;

[0021] Figure 5 is the structure schematic diagram of the structure for locking the lift track of the utility model;

[0022] Figure 6 is the structure schematic diagram of the drive assembly of the utility model;

[0023] Figure 7 is the structure schematic diagram at the counterweight assembly of the utility model;

[0024] Figure 8 is the structure schematic diagram at the lifting bracket of the utility model.

[0025] The meanings of the reference numerals in the drawings are as follows:

[0026] 100 - Main frame; 101 - Column; 200 - Counterweight assembly; 201 - Counterweight guide wheel; 202 - Counterweight traveling wheel; 300 - Lifting chain; 400 - Lifting bracket; 401 - Bracket guide wheel; 402 - Bracket traveling wheel; 500 - Driving assembly; 501 - Motor; 502 - Coupling; 503 - Pillow block bearing; 504 - Rotary sprocket; 505 - Rotating shaft; 506 - Reducer; 600 - Spare track; 601 - Connecting plate; 700 - Lifting track; 701 - Driving cylinder; 702 - Rotating plate; 703 - Limiting plate; 704 - Bayonet; 705 - Locking post; 800 - Main track; 801 - Accumulating trolley; 802 - Workpiece; 900 - Track lifting mechanism; 901 - Lifting cylinder; 902 - Straight rod; 903 - Track guide wheel; 904 - Vertical guide rail; 905 - Track traveling wheel. Detailed implementation mode

[0027] The present utility model will be further described below in conjunction with embodiments.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0029] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0031] Embodiment:

[0032] As Figures 1 to 8 shown is a four-column high-speed track lift with a spare track according to this embodiment, which includes a main frame 100, a lifting bracket 400, a lifting track 700, a bracket lifting mechanism, a spare track 600, and a track lifting mechanism 900. The bracket lifting mechanism includes a driving assembly 500, a counterweight assembly 200, and a lifting chain 300.

[0033] The main frame 100 is a metal structure frame, including four columns 101. The counterweight assembly 200 is slidably arranged between two columns 101 on the back of the main frame 100, and the counterweight assembly 200 is guided to slide by the two columns 101 on the back. The lifting bracket 400 is arranged in the main frame 100. The back of the lifting bracket 400 is slidably connected to the two columns 101 on the back of the main frame 100, and is also guided to slide up and down by the two columns 101 on the back.

[0034] The main body of the lifting bracket 400 in this embodiment is a frame structure welded by rectangular tubes, with good strength. Four groups of bracket wheel brackets are arranged on the back of the lifting bracket 400. As Figure 8 shown, each group of bracket wheel brackets is equipped with a bracket wheel 402 and a bracket guide wheel 401. The bracket wheel 402 is an integral type belt screw bearing wheel. The bracket wheel 402 and the bracket guide wheel 401 are slidably fitted and connected with the bracket guide rail on the column 101 to guide the lifting bracket 400 to move up and down along the column 101 of the main frame 100.

[0035] The function of the counterweight assembly 200 is to balance the lifting load and reduce the load on the motor and reducer. The counterweight assembly 200 adopts a frame structure, and the counterweight blocks of the counterweight assembly 200 are cut from steel plates. The weight of the counterweight assembly 200 is equal to half of the weight of the lifting bracket, the lifting track, the accumulation trolley plus the workpiece. As Figure 7 shown, four groups of counterweight wheel brackets are arranged at the four corners of the frame of the counterweight assembly 200. Each group of counterweight wheel brackets is equipped with 1 counterweight wheel 202, and two vertical counterweight guide wheels 201 are installed on each side of the frame to limit the counterweight in the XY directions to make the lifting smooth without jamming.

[0036] The drive assembly 500 is arranged at the upper end of the main frame 100. As Figure 6 shown, the drive assembly 500 includes a motor 501, a rotating shaft 505 and a rotary sprocket 504 arranged on the rotating shaft 505. The rotating shaft 505 is rotatably installed at the upper end of the main frame 100 through a pedestal bearing 503. The rotating shaft 505 is connected to the motor 501 through a reducer 506 and a coupling 502. The lifting chain 300 bypasses the rotary sprocket 504. One end of the lifting chain 300 is connected to the counterweight assembly 200, and the other end is connected to the lifting bracket 400. During operation, driving the rotating shaft 505 to rotate by the motor 501 can drive the lifting bracket 400 to lift and lower. Among them, the motor 501 and the reducer 506 are selected as an integral type with a brake. The brake is equipped with a manual release (brake release) handle, which is convenient for maintenance and repair. In this embodiment, the lifting speed is controlled by frequency conversion. The lifting speed of the lifting bracket 400 can reach an extremely high speed of 56 m / min, ensuring the working beat requirements of the rail lift.

[0037] The lifting track 700 is fixedly installed at the upper end of the lifting bracket 400. When the lifting bracket 700 rises to the set height, both ends of the lifting track 700 can be docked with the main track 800 of the accumulation conveyor to fill the disconnection position of the main track 800 of the accumulation conveyor, so that the accumulation trolley 801 can pass smoothly.

[0038] Among them, the spare track 600 and the track lifting mechanism 900 are both installed at the upper end of the main frame 100. As Figure 4 shown, the track lifting mechanism 900 of this embodiment includes two lifting cylinders 901, and the two lifting cylinders 901 are respectively installed vertically downward on both sides. There are also two vertical guide rails 904 provided at the upper end of the main frame 100, and the two vertical guide rails 904 are respectively located on the sides of the two lifting cylinders 901. Upward protruding connecting plates 601 are respectively provided at both ends of the spare track 600. The lower ends of the piston rods of the lifting cylinders 901 are respectively connected to the connecting plates 601. A vertical straight rod 902 is fixed on the upper surface of the connecting plate 601. A guide wheel set is installed on the straight rod 902, and the guide wheel set is slidably connected with the vertical guide rail 904, so that the lifting of the spare track 600 is more stable.

[0039] The straight rod 902 of this embodiment is located inside the vertical guide rail 904. The guide wheel set includes a track running wheel 905 and a track guide wheel 903. The track running wheel 905 is fitted in the guide groove of the vertical guide rail 904, and the track guide wheel 903 presses on the side surface of the vertical guide rail 904.

[0040] In this embodiment, two vertically upward limiting plates 703 are provided on the lifting track 700, and the two limiting plates 703 are respectively located on both sides. As Figure 5 shown, a bayonet 704 is provided inside the upper end of the limiting plate 703. Rotating plates 702 and driving cylinders 701 are respectively provided on both sides of the upper end of the main frame 100. The middle part of the rotating plate 702 is rotatably connected to the upper end of the main frame 100, and the tail of the driving cylinder 701 is rotatably connected to the upper end of the main frame 100. The piston rod of the driving cylinder 701 is hinged to the upper end of the rotating plate 702, and a clamping column 705 is provided at the lower end of the rotating plate 702. When the lifting track 700 rises to the set height, the driving cylinder 701 can drive the rotating plate 702 to rotate so that the clamping column 705 is clamped into the bayonet 704, thereby locking the position of the lifting track 700 and better ensuring that the position of the lifting track 700 will not shift.

[0041] The operation process of the track elevator of this embodiment is as follows:

[0042] During the production process, the accumulation trolley 801 is installed on the track, and the workpiece 802 is hung on the accumulation trolley 801. When the track elevator 700 is in normal operation, the spare track 600 is driven by the track lifting mechanism 900 to rise above the main track 800 of the accumulation conveyor, and is staggered with the main track 800. The spare track 600 will not affect the normal operation of the track elevator. When the track elevator fails and the lifting track 700 cannot be normally docked with the main track 800 of the accumulation conveyor, the spare track 600 can be driven by the track lifting mechanism 900 to descend to the main track 800 position of the accumulation conveyor, dock with the main track 800, fill the disconnected position, and ensure the continuity of the main track 800, so that other accumulation trolleys 801 can still pass smoothly from the position of the track elevator.

[0043] For the detection of the standby rail 600 falling into place, a conventional magnetic switch can be used for detection.

[0044] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation methods of the present invention are not limited thereto. All other forms of modifications, replacements or changes made to the above structures of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in the field, without departing from the above basic technical ideas of the present invention, shall fall within the protection scope of the present invention.

Claims

1. A four-column high-speed rail elevator with a spare rail, comprising a main frame, a lifting bracket, a lifting rail and a bracket lifting mechanism, wherein the lifting bracket can be slid up and down and is arranged in the main frame, the lifting rail is fixedly installed on the upper end of the lifting bracket, the lifting bracket is driven to rise and fall by the bracket lifting mechanism, and when the lifting bracket rises to a set height, the two ends of the lifting rail can dock with the main track of the accumulation conveyor, characterized in that: It also includes a spare track and a track lifting mechanism, both of which are installed at the upper end of the main frame, the spare track is connected to the track lifting mechanism, and the track lifting mechanism can drive the spare track to rise above the main track of the accumulation and release conveyor, and can drive the spare track to descend to the main track to dock with the main track.

2. The four-column high-speed rail elevator with spare rails according to claim 1, characterized in that: The track lifting mechanism comprises a lifting cylinder, which is installed vertically downward, and the lower end of the piston rod of the lifting cylinder is connected to the spare track.

3. The four-column high-speed rail elevator with spare rails according to claim 2, characterized in that: A vertical guide rail is disposed at the upper end of the main frame, and a guide wheel group is correspondingly disposed on the spare rail, and the guide wheel group is connected to the vertical guide rail in a sliding manner.

4. The four-column high-speed rail elevator with spare rails according to claim 3, characterized in that: The spare track is provided with an upwardly protruding connecting plate, the lower end of the piston rod of the lifting cylinder is connected to the connecting plate, a vertically upward straight rod is fixed on the connecting plate, and the guide wheel group is installed on the straight rod.

5. The four-column high-speed rail elevator with spare rails according to claim 1, characterized in that: The lifting track is provided with a vertically upward limit plate, and a bayonet is provided on one side of the upper end of the limit plate. The upper end of the main frame is provided with a rotating plate rotatably connected in the middle and a driving cylinder rotatably connected at the rear. The piston rod of the driving cylinder is hinged to the upper end of the rotating plate, and a clamping column is provided at the lower end of the rotating plate. When the lifting track rises to a set height, the driving cylinder can drive the rotating plate to rotate so that the clamping column is clamped in the bayonet.

6. The four-column high-speed rail elevator with spare rails according to claim 1, characterized in that: The bracket lifting mechanism includes a drive assembly, a counterweight assembly and a lifting chain. The drive assembly is arranged at the upper end of the main frame. The drive assembly includes a motor, a rotating shaft connected to the motor and a slewing sprocket arranged on the rotating shaft. The counterweight assembly is slidable up and down on the back of the main frame. The lifting chain passes around the slewing sprocket. One end of the lifting chain is connected to the counterweight assembly, and the other end is connected to the lifting bracket.

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