Four-column type high-speed rail elevator with cart mechanism

Abstract

The utility model discloses a four-column type high-speed track lifter with a cart mechanism, which comprises a main frame, a lifting support, a lifting track, a support lifting mechanism and the cart mechanism, the lifting support can be arranged in the main frame in a vertical sliding manner, the lifting track is fixedly mounted at the upper end of the lifting support, and the support lifting mechanism is arranged on the lifting track. The lifting support is driven by a support lifting mechanism to ascend and descend, the cart mechanism is provided with a reciprocating mechanism and two push rods capable of being installed in a turnover mode, the two push rods are connected with the reciprocating mechanism, the reciprocating mechanism drives the two push rods to reciprocate together, and a blocking rod is arranged on the accumulation trolley walking on the track. When the cart mechanism drives the push rod to advance, thrust can act on the power and free trolleys waiting behind the lifting track and the blocking rods of the power and free trolleys on the lifting track, and when the cart mechanism drives the push rod to retreat, the push rod turns over under blocking of the blocking rods. The track elevator can eliminate the influence of the track elevator on the rhythm.

Description

Technical Field

[0001] The utility model relates to a four-column high-speed rail lift with a trolley mechanism 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 lift for use in conjunction with an accumulation conveyor that can be used for space layout is adopted. By using this kind of high-speed rail lift, 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 lift is installed on the driving path of the main track of the accumulation conveyor, and the main track of the accumulation conveyor is disconnected at the position of the rail lift. A conventional rail lift generally includes a main frame, a driving assembly, a lifting bracket, a lifting track, and a counterweight assembly. The lifting bracket is slidably arranged in the main frame, the lifting track is fixedly installed at the upper end of the lifting bracket, a stopper and a backstop are provided on the lifting track, the counterweight assembly is slidably arranged on the back of the main frame, the driving assembly is installed at the upper end of the main frame, a lifting chain is wound around the rotary sprocket of the driving 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 track, and the workpiece is hung on the accumulation trolley. The accumulation trolley is pushed to move on the track by a pusher on the driving chain of the accumulation conveyor.

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

[0005] However, during the production process, the moving beat of the accumulation trolley at the rail lift will be affected, that is, the efficiency of this part of the position becomes lower. Because, after the rail lift raises the lifting track and the accumulation trolley on the lifting track to the position, it is necessary to wait for the pusher on the driving chain of the accumulation conveyor to move into place before the accumulation trolley on the lifting track can be pushed away, which will generate a certain waiting time, thus affecting the beat. Summary of the Utility Model

[0006] The object of the present utility model is to provide a four-column high-speed rail elevator with a cart mechanism, which can eliminate the influence of the rail elevator on the production rhythm.

[0007] The object of the present utility model is achieved by the following technical solutions:

[0008] A four-column high-speed rail elevator with a cart mechanism, which includes a main frame, a lifting bracket, a lifting rail and a bracket lifting mechanism. The lifting bracket is slidably arranged in the main frame. The lifting rail is fixedly installed at the upper end of the lifting bracket. The lifting bracket is driven by the bracket lifting mechanism to lift. When the lifting bracket rises to a set height, both ends of the lifting rail can be docked with the main rail of the accumulation conveyor. It is characterized in that: it further includes a cart mechanism. The cart mechanism is provided with a reciprocating motion mechanism and two push rods that can be reversibly installed. The two push rods are connected to the reciprocating motion mechanism, and the reciprocating motion mechanism drives the two push rods to move reciprocally together. A stop bar is provided on the accumulation trolley walking on the rail. When the cart mechanism drives the push rod to move forward, the thrust can act on the stop bar of the accumulation trolley waiting behind the lifting rail and the accumulation trolley on the lifting rail. When the cart mechanism drives the push rod to move backward, the push rod will be flipped under the block of the stop bar.

[0009] Further, the cart mechanism is provided with a fixed guide rail and a reciprocating trolley. The fixed guide rail is installed in parallel with the lifting rail. Both ends of the fixed guide rail respectively extend to the positions where the main rails on both sides of the rail elevator are located. The reciprocating trolley is slidably installed on the fixed guide rail. The push rod is reversibly installed on the reciprocating trolley. The reciprocating trolley is connected to the reciprocating motion mechanism, and the reciprocating motion mechanism drives the reciprocating trolley to move reciprocally.

[0010] Further, the upper end of the push rod is rotatably connected to the reciprocating trolley through a pin shaft. The lower end of the push rod is used to cooperate with the stop bar. A stop block is provided above the push rod. The position of the stop block is offset backward relative to the pin shaft. When the push rod is vertically downward, the upper end surface of the push rod abuts against the stop block.

[0011] Further, the stop bar extends horizontally to the side of the accumulation trolley.

[0012] Further, a push block is provided at the lower end of the push rod.

[0013] Further, the reciprocating motion mechanism includes a transmission belt, a pulley set and a reciprocating motor. The transmission belt is installed on the pulley set. The reciprocating motor is connected to the pulley set. The transmission belt is fixedly connected to the reciprocating trolley.

[0014] Further, a clamping plate is fixed on the upper end surface of the reciprocating trolley through bolts. The transmission belt is clamped between the clamping plate and the upper end surface of the reciprocating trolley.

[0015] Furthermore, the bracket lifting mechanism includes 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 arranged on the back of the main frame so as to be able to slide up and down. The lifting chain bypasses the rotary sprocket. One end of the lifting chain is connected to the counterweight assembly, and the other end is connected to the lifting bracket.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model is provided with a trolley mechanism with two working positions. By the cooperation of two reciprocating push rods on the trolley mechanism and the retaining rods on the accumulating trolley, the accumulating trolleys on the lifting track can be quickly pushed out simultaneously, and the accumulating trolley waiting behind the lifting track can be pushed into the lifting track, achieving the effect of no beat loss. Description of the Drawings

[0018] Figure 1 is the front view schematic diagram of the utility model;

[0019] Figure 2 is the side view schematic diagram of the utility model;

[0020] Figure 3 is the structural schematic diagram of the trolley mechanism of the utility model when cooperating with the accumulating trolley;

[0021] Figure 4 is the structural schematic diagram of the trolley mechanism of the utility model;

[0022] Figure 5 is the assembly structural schematic diagram of the reciprocating trolley and the push rod of the utility model. At this time, the push rod is vertically downward, and the upper end of the push rod abuts against the stop block;

[0023] Figure 6 is the assembly structural schematic diagram of the reciprocating trolley and the push rod of the utility model. At this time, the push rod rotates forward under the blocking of the retaining rod;

[0024] Figure 7 is the partial structural schematic diagram of the upper end of the main frame and the lifting bracket of the utility model;

[0025] Figure 8 is the structural schematic diagram of the utility model for locking the lifting track;

[0026] Figure 9 is the structural schematic diagram of the driving assembly of the utility model;

[0027] Figure 10 is the structural schematic diagram at the counterweight assembly of the utility model;

[0028] Figure 11It is a schematic structural diagram of the lifting bracket of the present utility model.

[0029] Meanings of the reference numerals in the figure:

[0030] 100 - Main frame; 101 - Column; 200 - Counterweight assembly; 201 - Counterweight guide wheel; 202 - Counterweight running wheel; 300 - Lifting chain; 400 - Lifting bracket; 401 - Bracket guide wheel; 402 - Bracket running wheel; 500 - Driving assembly; 501 - Motor; 502 - Coupling; 503 - Pillow block bearing; 504 - Rotary sprocket; 505 - Rotating shaft; 506 - Reducer; 600 - Fixed guide rail; 601 - Reciprocating trolley; 602 - Push rod; 603 - Push block; 604 - Clamping plate; 605 - Stopper; 606 - Pin shaft; 700 - Lifting track; 701 - Driving cylinder; 702 - Rotating plate; 703 - Limiting plate; 704 - Bayonet; 705 - Clamping post; 800 - Main track; 801 - Accumulating trolley; 802 - Workpiece; 803 - Stop bar; 900 - Reciprocating motion mechanism; 901 - Transmission belt; 902 - Reciprocating motor; 903 - Pulley; 904 - Limiting wheel. Detailed implementation manners

[0031] The present utility model will be further described below in conjunction with embodiments.

[0032] In the description of the present utility model, it should be understood that for the orientation description, such as the upper, lower, front, rear, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It 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 therefore should not be construed as a limitation to the present utility model.

[0033] 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, and "above", "below", "within", etc. are understood as including the present number. If the first and second are described, 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 the sequence relationship of the indicated technical features.

[0034] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0035] Embodiment:

[0036] As Figures 1 to 11Shown is a four-column high-speed rail lift with a trolley mechanism according to this embodiment, which includes a main frame 100, a lifting bracket 400, a lifting rail 700, a bracket lifting mechanism, and a trolley mechanism. The bracket lifting mechanism includes a drive assembly 500, a counterweight assembly 200, and a lifting chain 300. The trolley mechanism includes a reciprocating motion mechanism 900, a fixed rail 600, two reciprocating trolleys 601, and two push rods 602.

[0037] 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.

[0038] 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 provided on the back of the lifting bracket 400. As Figure 11 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 with a screw bearing wheel. The bracket wheel 402 and the bracket guide wheel 401 are slidably 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.

[0039] 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 rail, the accumulation trolley plus the workpiece. As Figure 10 shown, four groups of counterweight wheel brackets are provided 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. Two vertical counterweight guide wheels 201 are installed on each side of the frame to limit the counterweight in the XY directions, so that the lifting is stable without jamming.

[0040] The drive assembly 500 is arranged at the upper end of the main frame 100. As Figure 9As shown in the figure, the drive assembly 500 includes a motor 501, a rotating shaft 505, and a rotating sprocket 504 provided on the rotating shaft 505. The rotating shaft 505 is rotatably mounted 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 speed reducer 506 and a coupling 502. The lifting chain 300 bypasses the rotating 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 speed reducer 506 are selected as an integrated 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 elevator.

[0041] The lifting track 700 is fixedly installed at the upper end of the lifting bracket 400 and rises and falls together with 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, filling the disconnection position of the main track 800 of the accumulation conveyor, so that the accumulation trolley 801 can pass smoothly.

[0042] Among them, the fixed guide rail 600 is installed in parallel with the lifting track 700. Both ends of the fixed guide rail 600 respectively extend to the positions where the main tracks 800 on both sides of the rail elevator are located. As Figure 2 shown, when the lifting track 700 rises to the in-place position, the fixed guide rail 600 will be located at a position slightly above and in front of the lifting track 700. Two reciprocating trolleys 601 are respectively installed on the fixed guide rail 600 through a conventional pulley set, and the reciprocating trolley 601 can slide back and forth along the fixed guide rail 600.

[0043] Two push rods 602 are respectively rotatably installed on the two reciprocating trolleys 601. The specific installation structure is: as Figure 5 and Figure 6 shown, the upper end of the push rod 602 is rotatably connected to the reciprocating trolley 601 through a pin shaft 606. A stop block 605 is provided above the push rod 602. The position of the stop block 605 is offset backward relative to the pin shaft 606. As Figure 5 shown, when the push rod 602 is vertically downward, the upper end surface of the push rod 602 abuts against the stop block 605.

[0044] A crossbar 803 that extends horizontally to the side of the accumulation trolley 801 is fixed on the accumulation trolley 801. The lower end of the push rod 602 is used to cooperate with and act on the crossbar 803. In this embodiment, a push block 603 is provided at the lower end of the push rod 602.

[0045] As Figure 4As shown in the figure, the reciprocating motion mechanism 900 of this embodiment includes a transmission belt 901, a pulley set, and a reciprocating motor 902. The pulley set includes a pulley 903 and a limit pulley 904. Corresponding to the two ends of the fixed guide rail 600, pulleys 903 are respectively rotatably provided above. The limit pulleys 904 are arranged side by side between the pulleys 903. The transmission belt 901 is installed on the pulleys 903 and is located above the fixed guide rail 600. The limit pulleys 904 support the upper part of the transmission belt 901. The reciprocating motor 902 is connected to one of the pulleys 903, and the transmission belt 901 is driven by the reciprocating motor 902 to perform reciprocating motion.

[0046] Among them, a clamping plate 604 is fixed on the upper end surface of the reciprocating trolley 601 by bolts. The lower part of the transmission belt 901 passes through between the clamping plate 604 and the upper end surface of the reciprocating trolley 601. By tightening the bolts, the lower part of the transmission belt 901 can be clamped between the clamping plate 604 and the upper end surface of the reciprocating trolley 601, realizing the fixed connection between the reciprocating trolley 601 and the transmission belt 901.

[0047] In this embodiment, two vertically upward limiting plates 703 are provided on the lifting track 700, and the two limiting plates 703 are located on both sides respectively, as Figure 8 shown. A bayonet 704 is provided on the inner side of 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 stuck 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.

[0048] The operation process of the track lift of this embodiment is as follows:

[0049] During the production process, the accumulation trolley 801 is installed on the track, and the workpiece 802 is hung on the accumulation trolley 801. During operation, the driving assembly 500 drives the lifting bracket 400, the lifting track 700, the accumulation trolley 801 on the lifting track 700, and the workpiece 802 on the accumulation trolley 801 to rise together. After rising to the position, the two ends of the lifting track 700 will be correctly docked with the main track 800 of the accumulation conveyor. At this time, the reciprocating motion mechanism 900 drives the reciprocating trolley 601 and the push rod 602 to move forward. The push rod 602 is in a vertically downward state, and the upper end of the push rod 602 abuts against the stop block 605 (as Figure 5In the state shown, since the position of the stopper 605 is shifted backward relative to the pin shaft 606, when the push rod 602 abuts against the shift lever 803, the push rod 602 will not flip backward, and the push rod 602 can apply a thrust force on the shift lever 803, thereby simultaneously pushing out the accumulation trolley 801 on the lifting track 700 and pushing the accumulation trolley 801 waiting behind the lifting track 700 into the lifting track 700. After the forward pushing action is completed, the reciprocating motion mechanism 900 drives the reciprocating trolley 601 and the push rod 602 to move backward and reset. During the backward movement, when the rear of the push rod 602 abuts against the shift lever 803, the push rod 602 will flip forward (as Figure 6 shown in the state), and will not generate a thrust force on the shift lever 803, so as to smoothly move backward and reset.

[0050] The above embodiments of the present invention do not limit the protection scope of the present invention. The implementation manners of the present invention are not limited thereto. All kinds of modifications, substitutions or changes made to the above structure of the present invention according to the above content of the present invention, in accordance with the common technical knowledge and conventional means in the art, without departing from the above basic technical idea 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 trolley mechanism, comprising a main frame, a lifting bracket, a lifting track and a bracket lifting mechanism, wherein the lifting bracket can be slid up and down and is arranged in the main frame, the lifting track 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 track can dock with the main track of the accumulation conveyor, characterized in that: The trolley mechanism also includes a trolley mechanism, which is provided with a reciprocating mechanism and two flippable push rods, the two push rods are connected to the reciprocating mechanism, and the reciprocating mechanism drives the two push rods to reciprocate together. A gear lever is provided on the accumulating trolley running on the track. When the trolley mechanism drives the push rods forward, the thrust can be applied to the gear lever of the accumulating trolley waiting behind the lifting track and the accumulating trolley on the lifting track. When the trolley mechanism drives the push rods backward, the push rods will flip over under the obstruction of the gear lever.

2. The four-column high-speed rail elevator with a trolley mechanism according to claim 1, characterized in that: The trolley mechanism is provided with a fixed guide rail and a reciprocating trolley. The fixed guide rail is installed parallel to the lifting track. Both ends of the fixed guide rail extend to the positions of the main tracks on both sides of the track elevator respectively. The reciprocating trolley is slidably installed on the fixed guide rail. The push rod can be flipped and installed on the reciprocating trolley. The reciprocating trolley is connected to the reciprocating motion mechanism, and the reciprocating motion mechanism drives the reciprocating trolley to perform reciprocating motion.

3. The four-column high-speed rail elevator with a trolley mechanism according to claim 2, characterized in that: The upper end of the push rod is rotationally connected to the reciprocating trolley via a pin shaft, and the lower end of the push rod is used to cooperate with the gear lever. A stop block is provided above the push rod, and the stop block is offset backward relative to the position of the pin shaft. When the push rod is vertically downward, the upper end surface of the push rod abuts against the stop block.

4. The four-column high-speed rail elevator with a trolley mechanism according to claim 3, characterized in that: The shift rod extends laterally to the side of the accumulation trolley.

5. The four-column high-speed rail elevator with a trolley mechanism according to claim 3, characterized in that: A push block is arranged at the lower end of the push rod.

6. The four-column high-speed rail elevator with a trolley mechanism according to claim 2, characterized in that: The reciprocating motion mechanism comprises a transmission belt, a pulley set and a reciprocating motor, the transmission belt is installed on the pulley set, the reciprocating motor is connected to the pulley set, and the transmission belt is fixedly connected to the reciprocating trolley.

7. The four-column high-speed rail elevator with a trolley mechanism according to claim 6, characterized in that: A clamping plate is fixed on the upper end surface of the reciprocating trolley by bolts, and the transmission belt is clamped between the clamping plate and the upper end surface of the reciprocating trolley.

8. The four-column high-speed rail elevator with a trolley mechanism 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.

Images