阅读说明：本技术 一种稳固升降装置 (Stable lifting device ) 是由 胡冠巨 于 2021-09-28 设计创作，主要内容包括：本发明公开了一种稳固升降装置,包括：架体、升降平台和两个提升架,升降平台位于架体的中部,两个提升架分别位于升降平台的两侧,提升架上均设置有油缸升降装置和链条,升降平台包括轿厢和底座,轿厢设置于底座顶部,底座顶部滑动连接有两个活动块,两个活动块分别位于轿厢朝向提升架的两侧,油缸升降装置通过链条与活动块连接用于带动升降平台升降,轿厢内设置有放置板,底座内开设有安装空腔,安装空腔朝向提升架的两侧均设置有调节装置。本发明具有使各个动力源受力平衡,延长使用寿命的优点。(The invention discloses a stable lifting device, which comprises: the support body, lift platform and two hoisting frames, lift platform is located the middle part of support body, two hoisting frames are located lift platform's both sides respectively, all be provided with hydro-cylinder elevating gear and chain on the hoisting frame, lift platform includes car and base, the car sets up in the base top, base top sliding connection has two movable blocks, two movable blocks are located the both sides of car towards the hoisting frame respectively, hydro-cylinder elevating gear is connected with the movable block through the chain and is used for driving lift platform to go up and down, be provided with in the car and place the board, the installation cavity has been seted up in the base, the both sides of installation cavity towards the hoisting frame all are provided with adjusting device. The invention has the advantages of balancing the stress of each power source and prolonging the service life.)

1. A robust lifting device, comprising: the lifting platform comprises a frame body (1), a lifting platform (3) and two lifting frames (2), wherein the lifting platform (3) is positioned in the middle of the frame body (1), the lifting frames (2) are respectively positioned on two sides of the lifting platform (3), an oil cylinder lifting device (4) and a chain (5) are arranged on each lifting frame (2), each lifting platform (3) comprises a car (32) and a base (31), the cars (32) are arranged on the tops of the bases (31), the tops of the bases (31) are slidably connected with two movable blocks (12), the two movable blocks (12) are respectively positioned on two sides of the cars (32) facing the lifting frames (2), the oil cylinder lifting devices (4) are connected with the movable blocks (12) through the chains (5) and used for driving the lifting platform (3) to lift, and a placing plate (6) is arranged in each car (32), an installation cavity (7) is arranged in the base (31), adjusting devices are arranged on two sides of the installation cavity (7) facing the lifting frame (2),

the adjusting device comprises a linkage gear (8), a pushing rack (11), a connecting column (10) and a connecting rack (9), the linkage gear (8) is rotatably connected in the installation cavity (7), the connecting rack (9) is meshed with the linkage gear (8) and one end of the connecting rack is connected with the connecting column (10), one end of the connecting column (10) far away from the connecting rack (9) vertically upwards penetrates through the base (31) and the car (32) and is hinged with the bottom of the placement plate (6), the pushing rack (11) is slidably connected with the bottom of the installation cavity (7) and is meshed with the linkage gear (8), one end of the pushing rack (11) is connected with a connecting piece, the pushing rack (11) is connected with the movable block (12) through the connecting piece and is used for pushing the movable block (12) to move towards the direction of the lifting frame (2), still the cover is equipped with reset spring (13) on spliced pole (10), the one end of reset spring (13) with place board (6) bottom and contradict, the other end with the top of base (31) is contradicted, the top and the bottom of hoisting frame (2) all with support body (1) sliding connection, activity piece (12) are kept away from be connected with adjusting push rod in the one side of car (32), adjusting push rod keeps away from the one end of activity piece (12) with hoisting frame (2) are connected and are used for promoting hoisting frame (2) are close to or keep away from car (32), hydro-cylinder elevating gear (4) drive when lift platform (3) go up and down, adjusting push rod can follow the direction of height of hoisting frame (2) slides.

2. A firm elevating gear according to claim 1, characterized in that, the movable block (12) bottom is provided with two parallel T type stoppers along the slip direction of movable block (12), T type stopper includes spacing riser (14) and spacing horizontal piece (15), spacing riser (14) connect in movable block (12) bottom, spacing horizontal piece (15) connect in spacing riser (14) bottom, base (31) top with the just right position of spacing horizontal piece (15) is seted up the supply the sliding tray that spacing horizontal piece (15) got into, the notch department of sliding tray is provided with and is used for right spacing first spacing edge is carried out to spacing horizontal piece (15).

3. A stable lifting device as claimed in claim 2, wherein said connecting member comprises a linkage rod (18), a linkage groove (19) is formed on the base (31) between the two sliding grooves on the same side, said linkage rod (18) is slidably connected in said linkage groove (19), one end of said linkage rod (18) passes upward through said linkage groove (19) to be connected with the movable block (12), and the other end passes downward through said linkage groove (19) to be connected with the pushing rack (11).

4. The stable lifting device according to claim 1, wherein the adjusting push rod comprises a rod portion (16) and a sliding wheel (17), one end of the rod portion (16) is connected with the movable block (12), the other end of the rod portion is connected with the sliding wheel (17), a lifting sliding groove for the sliding wheel (17) to enter is formed in one surface of the lifting frame (2) opposite to the sliding wheel (17) along the height direction of the lifting frame (2), and a second limiting edge for limiting the sliding wheel (17) is arranged at the notch of the lifting sliding groove.

5. A stable lifting device as claimed in claim 1, wherein said car (32) comprises two side plates (322) and a back plate (321), said car (32) is provided with a gantry (20) on top, and said gantry (20) is fixedly connected to said side plates (322) and said back plate (321).

6. The stable lifting device according to claim 5, wherein two guide columns are further arranged on the top of the base (31), the two guide columns are respectively located on one side of the two side plates (322) away from each other, a guide groove (23) is formed in one side of each of the two guide columns, which faces the guide columns, along the height direction of the guide column, a guide pipe (21) is arranged on the portal frame (20), two ends of the guide pipe (21) are respectively connected with a guide pulley (22), and the two guide pulleys (22) are respectively connected in the guide groove (23) in a sliding manner.

7. A stable lifting device according to claim 6, characterized in that one of the side surfaces of the guiding columns is an auxiliary surface, the auxiliary surface is abutted against the lifting frame (2), a plurality of auxiliary grooves are formed on the auxiliary surface, the length direction of the auxiliary grooves is parallel to the sliding direction of the lifting frame (2), an auxiliary block (24) is arranged on the lifting frame (2) opposite to the auxiliary grooves, and the auxiliary block (24) is slidably connected in the auxiliary grooves.

8. The stable lifting device according to claim 1, wherein a power-assisted groove (25) is formed in the position, opposite to the lifting frame (2), of the base (31) along the sliding direction of the lifting frame (2), a power-assisted wheel (26) is arranged at the bottom of the lifting frame (2), and the power-assisted wheel (26) is slidably connected into the power-assisted groove (25).

9. A stable lifting device according to claim 8, characterized in that a reset cylinder (27) is arranged in the power-assisted groove (25), the reset cylinder (27) is located at the side of the power-assisted wheel (26) far away from the lifting platform (3), and the output end of the reset cylinder (27) faces the sliding direction of the lifting frame (2).

Technical Field

The invention relates to the technical field of freight equipment, in particular to a stable lifting device.

Background

Along with the improvement of industrialization and automation level, the application industry of the lifting device is more and more extensive, the goods transportation between main production lines or floors, the on-line and off-line of materials, the lifting of parts during the assembly of large-scale equipment, the feeding and discharging of large-scale machine tools and the like.

The hydro-cylinder has the advantage that thrust is big, adopt the hydro-cylinder as elevating gear's power supply, moreover, the steam generator is simple in structure, the reliability is high, current elevating gear often is provided with double dynamical source, lift from the both sides of device, stability and reliability are high, elevating gear is in the use, need notice the position of placing of goods, guarantee the goods as far as possible and be located central point, and place the goods as far as possible evenly, otherwise lead to the lift impaired easily, but because the volume and the quality of goods are different, often can have weight distribution inhomogeneous, lead to the light situation of a heavy one side to take place, can lead to extra pressure to the power supply of one side wherein, but the incomplete atress of opposite side, each power supply atress inequality influences life easily.

Disclosure of Invention

The invention aims to provide a stable lifting device which has the advantages of balancing the stress of each power source and prolonging the service life.

The technical purpose of the invention is realized by the following technical scheme:

a secure lifting device comprising: the lifting platform is positioned in the middle of the frame body, the two lifting frames are respectively positioned on two sides of the lifting platform, an oil cylinder lifting device and a chain are arranged on each lifting frame, each lifting platform comprises a car and a base, the car is arranged on the top of the base, the top of the base is slidably connected with two movable blocks, the two movable blocks are respectively positioned on two sides of the lifting frame towards the car, the oil cylinder lifting device is connected with the movable blocks through the chain and used for driving the lifting platform to lift, a placing plate is arranged in the car, an installation cavity is formed in the base, the installation cavity is provided with adjusting devices towards two sides of the lifting frames,

the adjusting device comprises a linkage gear, a pushing rack, a connecting column and a connecting rack, the linkage gear is rotationally connected in the installation cavity, the connecting rack is meshed with the linkage gear, one end of the connecting rack is connected with the connecting column, one end of the connecting column, which is far away from the connecting rack, vertically penetrates upwards the base and the car to be hinged with the bottom of the placing plate, the pushing rack is slidably connected with the bottom of the installation cavity and meshed with the linkage gear, one end of the pushing rack is connected with a connecting piece, the pushing rack is connected with the movable block through the connecting piece to be used for pushing the movable block to move towards the direction of the lifting frame, the connecting column is further sleeved with a reset spring, one end of the reset spring is abutted against the bottom of the placing plate, the other end of the reset spring is abutted against the top of the base, and the top and the bottom of the lifting frame are both slidably connected with the frame body, the movable block is kept away from be connected with adjusting push rod in the one side of car, adjusting push rod keeps away from the one end of movable block with the hoisting frame is connected and is used for promoting the hoisting frame is close to or keeps away from the car, hydro-cylinder elevating gear drives during the lift platform goes up and down, adjusting push rod can follow the direction of height of hoisting frame slides.

Further setting: the movable block bottom is followed the slip direction of movable block is provided with the T type stopper of two parallels, T type stopper includes spacing riser block and spacing horizontal piece, spacing riser block connect in the movable block bottom, spacing horizontal piece connect in spacing riser block bottom, the base top with the confession has been seted up to the just right position of spacing horizontal piece the sliding tray that spacing horizontal piece got into, the notch department of sliding tray is provided with and is used for right spacing horizontal piece carries out spacing first spacing edge.

Further setting: the connecting piece includes the gangbar, has seted up the linkage groove on being located the base between two sliding tray with one side, gangbar sliding connection in the linkage inslot, the one end of gangbar upwards passes the linkage groove is connected with the movable block, and the other end passes downwards the linkage groove is connected with the promotion rack.

Further setting: the adjusting push rod comprises a rod part and a sliding wheel, one end of the rod part is connected with the movable block, the other end of the rod part is connected with the sliding wheel, the lifting frame is arranged on one face, right opposite to the sliding wheel, of the lifting frame, a lifting sliding groove for the sliding wheel to enter is formed in the height direction of the lifting frame, and a second limiting edge for limiting the sliding wheel is arranged at the notch of the lifting sliding groove.

Further setting: the car includes two blocks of curb plates and a backplate, the car top is provided with the portal frame, the portal frame with curb plate, backplate are connected fixedly.

Further setting: the base top still is provided with two direction stands, two the direction stand is located the one side that two blocks of curb plates kept away from each other respectively, two the direction stand is followed in the one side just right each other the direction of height of direction stand has seted up the guide way, be provided with the stand pipe on the portal frame, the both ends of stand pipe all are connected with the guide pulley, two guide pulley respectively sliding connection in the guide way.

Further setting: one side surface of the guide upright post is an auxiliary surface, the auxiliary surface is abutted against the lifting frame, a plurality of auxiliary grooves are formed in the auxiliary surface, the length direction of each auxiliary groove is parallel to the sliding direction of the lifting frame, auxiliary blocks are arranged on the lifting frame and opposite to the auxiliary grooves, and the auxiliary blocks are connected in the auxiliary grooves in a sliding mode.

Further setting: the lifting frame is characterized in that a power-assisted groove is formed in the position, opposite to the lifting frame, of the base along the sliding direction of the lifting frame, a power-assisted wheel is arranged at the bottom of the lifting frame, and the power-assisted wheel is connected in the power-assisted groove in a sliding mode.

Further setting: the power-assisted groove is internally provided with a reset cylinder, the reset cylinder is positioned at one side of the power-assisted wheel, which is far away from the lifting platform, and the output end of the reset cylinder faces to the sliding direction of the lifting frame.

In conclusion, the invention has the following beneficial effects: goods are placed on the placing plate, if the weight distribution of the goods is not uniform, one side of the goods is heavier than the other side, the placing plate on the heavy side is pressed down by gravity to drive the connecting column and the connecting rack to move downwards, the connecting rack is meshed with the linkage gear to drive the linkage gear to rotate so as to drive the pushing rack to slide towards the direction of the lifting frame, when the pushing rack slides towards the direction of the lifting frame, the movable block is driven by the connecting piece to slide towards the direction far away from the lift car, so that the lifting frame and the movable block on the corresponding side are pushed to synchronously keep away from the lift car by adjusting the push rod, and the oil cylinder lifting device on the lifting frame is connected with the movable block by the chain, so that the distance between the connecting point of the lifting frame and the lifting platform and the center of the lifting platform is far away, the moment is increased so as to reduce the pressure on the oil cylinder lifting device on the side, thereby balancing the pressure on power sources on two sides, the damage caused by overlarge pressure on one side of the pressure-bearing device is avoided, and the service life is prolonged. The setting of movable pulley and lift spout is guaranteeing to adjust the push rod and can drive the basis of hoisting frame lateral shifting, through the movable pulley in the lift spout slip make the lift platform can be smooth and easy rise and descend, improved the smoothness nature of device operation. The setting of portal frame has improved the fastness of car structure, and the setting of direction stand and stand pipe has guaranteed the stability of lift platform at the lift in-process. The arrangement of the auxiliary groove and the auxiliary block improves the stability of the lifting frame when the distance between the lifting frame and the lifting platform is adjusted.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is an overall structural front view of the embodiment;

FIG. 3 is an enlarged view at A in FIG. 1;

FIG. 4 is a sectional view of the structure at the installation cavity in the embodiment;

FIG. 5 is a schematic structural diagram of a movable block in the embodiment.

In the figure, 1, a frame body; 2. a hoisting frame; 3. a lifting platform; 31. a base; 32. a car; 321. a back plate; 322. a side plate; 4. an oil cylinder lifting device; 5. a chain; 6. placing the plate; 7. installing a cavity; 8. a linkage gear; 9. connecting the racks; 10. connecting columns; 11. pushing the rack; 12. a movable block; 13. a return spring; 14. a limiting vertical block; 15. a limiting transverse block; 16. a rod portion; 17. a sliding wheel; 18. a linkage rod; 19. a linkage groove; 20. a gantry; 21. a guide tube; 22. a guide pulley; 23. a guide groove; 24. an auxiliary block; 25. a power-assisted groove; 26. a power-assisted wheel; 27. and (6) resetting the air cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

as shown in fig. 1, 2, 3 and 4, a stable lifting device includes: support body 1, lift platform 3 and two hoisting frames 2, lift platform 3 is located the middle part of support body 1, two hoisting frames 2 are located respectively lift platform 3's both sides, all be provided with hydro-cylinder elevating gear 4 and chain 5 on hoisting frame 2, lift platform 3 includes car 32 and base 31, car 32 set up in the base 31 top, base 31 top sliding connection has two movable block 12, two the movable block 12 is located respectively the car 32 orientation the both sides of hoisting frame 2, hydro-cylinder elevating gear 4 through chain 5 with the movable block 12 is connected and is used for driving lift platform 3 goes up and down, be provided with in the car 32 and place board 6, installation cavity 7 has been seted up in the base 31, installation cavity 7 orientation the both sides of hoisting frame 2 all are provided with adjusting device, adjusting device includes linked gear 8, two, Promote rack 11, spliced pole 10 and connecting rack 9, linkage gear 8 rotate connect in installation cavity 7, connecting rack 9 with linkage gear 8 meshes and one end with spliced pole 10 is connected, spliced pole 10 keeps away from the vertical upwards pass of the one end of connecting rack 9 base 31 and car 32 with place the board 6 bottom articulated, promote rack 11 sliding connection in installation cavity 7 the bottom and with the linkage gear 8 meshes, the one end of promoting rack 11 is connected with the connecting piece, promote rack 11 through the connecting piece with the movable block 12 is connected and is used for promoting the movable block 12 towards the 2 direction movements of hoisting frame, still the cover is equipped with reset spring 13 on the spliced pole 10, reset spring 13's one end with place board 6 bottom contradict, the other end with the top of base 31 contradicts, the top and the bottom of hoisting frame 2 all with 1 sliding connection of support body, movable block 12 is kept away from be connected with adjusting push rod in the one side of car 32, adjusting push rod keeps away from the one end of movable block 12 with hoisting frame 2 is connected and is used for promoting hoisting frame 2 is close to or keeps away from car 32, oil cylinder elevating gear 4 drives when elevating platform 3 goes up and down, adjusting push rod can follow the direction of height of hoisting frame 2 slides.

As shown in fig. 2, fig. 3, fig. 4 and fig. 5, the bottom of the movable block 12 is provided with two parallel T-shaped limiting blocks along the sliding direction of the movable block 12, each T-shaped limiting block comprises a limiting vertical block 14 and a limiting transverse block 15, the limiting vertical block 14 is connected to the bottom of the movable block 12, the limiting transverse block 15 is connected to the bottom of the limiting vertical block 14, the top of the base 31 and the position right opposite to the limiting transverse block 15 are provided with a sliding groove for the limiting transverse block 15 to enter, and the notch of the sliding groove is provided with a first limiting edge for limiting the limiting transverse block 15. The connecting piece comprises a linkage rod 18, a linkage groove 19 is formed in a base 31 between two sliding grooves on the same side, the linkage rod 18 is connected in the linkage groove 19 in a sliding mode, one end of the linkage rod 18 penetrates through the linkage groove 19 upwards to be connected with the movable block 12, and the other end of the linkage rod penetrates through the linkage groove 19 downwards to be connected with the pushing rack 11. The adjusting push rod comprises a rod part 16 and a sliding wheel 17, one end of the rod part 16 is connected with the movable block 12, the other end of the rod part is connected with the sliding wheel 17, the lifting frame 2 is provided with a lifting sliding groove for the sliding wheel 17 to enter in the height direction of the lifting frame 2 along the face, right opposite to the sliding wheel 17, of the lifting frame, and a second limiting edge for limiting the sliding wheel 17 is arranged at the notch of the lifting sliding groove. The car 32 includes two blocks of curb plates 322 and a backplate 321, the car 32 top is provided with portal frame 20, portal frame 20 with curb plate 322, backplate 321 are connected fixedly. The top of the base 31 is further provided with two guide columns, the two guide columns are respectively located on one side, away from each other, of the two side plates 322, the guide grooves 23 are formed in one faces, right opposite to the guide columns, of the guide columns, the guide pipes 21 are arranged on the portal frame 20, the two ends of each guide pipe 21 are connected with guide pulleys 22, and the two guide pulleys 22 are respectively connected in the guide grooves 23 in a sliding mode.

As shown in fig. 1 and 3, one side surface of the guide pillar is an auxiliary surface, the auxiliary surface abuts against the lifting frame 2, a plurality of auxiliary grooves are formed in the auxiliary surface, the length direction of each auxiliary groove is parallel to the sliding direction of the lifting frame 2, an auxiliary block 24 is arranged on the lifting frame 2 opposite to the auxiliary grooves, and the auxiliary block 24 is slidably connected in the auxiliary grooves. The base 31 and the lifting frame 2 are just opposite to each other, a power-assisted groove 25 is formed in the sliding direction of the lifting frame 2, a power-assisted wheel 26 is arranged at the bottom of the lifting frame 2, and the power-assisted wheel 26 is connected in the power-assisted groove 25 in a sliding mode. A reset cylinder 27 is arranged in the power-assisted groove 25, the reset cylinder 27 is arranged at the end part of the power-assisted groove 25, and the output end of the reset cylinder 27 faces the sliding direction of the lifting frame 2.

Goods are placed on the placing plate 6, if the weight distribution of the goods is not uniform, wherein one side is heavier than the other side, the placing plate 6 on the heavy side is pressed down by gravity to drive the connecting column 10 and the connecting rack 9 to move downwards, the connecting rack 9 is meshed with the linkage gear 8 to drive the linkage gear 8 to rotate so as to drive the pushing rack 11 to slide towards the lifting frame 2, when the pushing rack 11 slides towards the lifting frame 2, the movable block 12 is driven by the connecting piece to slide towards the direction far away from the lift car 32, so that the lifting frame 2 and the movable block 12 on the corresponding side are pushed to synchronously keep away from the lift car 32 by adjusting the push rod, the oil cylinder lifting device 4 on the lifting frame 2 is connected with the movable block 12 through the chain 5, the distance between the connecting point of the lifting frame 2 and the lifting platform 3 and the center of the lifting platform 3 is far, the moment is increased so as to reduce the pressure on the oil cylinder lifting device 4 on the side, therefore, the pressure on the power sources at two sides is balanced, damage caused by overlarge pressure on one side is avoided, and the service life is prolonged. The setting of movable pulley 17 and lift spout is guaranteeing to adjust the push rod and can drive 2 lateral shifting's of hoisting frame basis, through the movable pulley 17 slide in the lift spout make the rising and the decline that lift platform 3 can be smooth and easy, has improved the smoothness nature of device operation. The arrangement of the portal frame 20 improves the structural firmness of the car 32, and the arrangement of the guide upright post and the guide pipe 21 ensures the stability of the lifting platform 3 in the lifting process. The provision of the auxiliary groove and the auxiliary block 24 improves the stability of the lifting frame 2 when adjusting the distance to the lifting platform 3.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.