A lifting device for entering and exiting a warehouse

Abstract

The present invention relates to the field of lifting facilities, and in particular to a lifting device for entering and exiting a warehouse, comprising a ground rail assembly and a chain hoist mounted on the ground rail assembly, wherein two protective push rails are symmetrically and fixedly mounted at the front end of the frame of the chain hoist, and the lower end of the protective push rails is inclined, and two groups of top columns are symmetrically and elastically mounted at the front end of the lifting frame of the chain hoist, and front corner seats are mounted at the opposite ends of the two groups of top columns, and push seat wheels are mounted at the opposite ends of the two groups of top columns, and the push seat wheels are fitted on the protective push rails, and two rear corner seats are symmetrically and slidably mounted at the rear end of the lifting frame of the chain hoist, and a material pusher is mounted at the inner bottom of the lifting frame of the chain hoist, and the material pusher is connected to the rear corner seat. The present invention improves the safety during lifting, prevents damage to the iron core, and ensures the normal operation of entering and exiting the warehouse.

Description

Technical Field

[0001] The invention relates to the field of lifting facilities, and in particular to a lifting device for entering and exiting a warehouse. Background Art

[0002] The iron core is the central part of electrical appliances such as motors, transformers, and electromagnets. The iron core is mostly made of magnetic materials such as silicon steel sheets. Silicon steel itself is a magnetic material with strong magnetic conductivity. In the energized coil, it can generate a large magnetic induction intensity, thereby reducing the size of the electrical appliance.

[0003] In the manufacturing process of iron cores, most of them are stored in the rack warehouse. However, since the rack warehouse has a certain height, in order to facilitate placement, a chain hoist is usually used to lift the material tray carrying the iron core material to the same height, and then push it into the rack warehouse to complete the material storage. In the use of the existing chain hoist, in order to facilitate the pushing of the material tray, a guide wheel is generally installed at the bottom of the lifting frame of the chain hoist. However, due to the existence of the guide wheel, the material tray is very likely to shift and fall due to shaking during the lifting process, which poses a great safety hazard. At the same time, the falling of the material tray will also cause damage to the iron core. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a lifting device for entering and exiting the warehouse.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a lifting device for entering and exiting the warehouse, comprising a ground rail assembly and a chain hoist installed on the ground rail assembly, the front end of the frame of the chain hoist is symmetrically and fixedly installed with two protective push rails, the lower end of the protective push rails is inclined, the front end of the lifting frame of the chain hoist is symmetrically and elastically installed with two groups of top columns, the opposite ends of the two groups of top columns are installed with front corner seats, the opposite ends of the two groups of top columns are installed with push seat wheels, the push seat wheels are fitted on the protective push rails, the rear end of the lifting frame of the chain hoist is symmetrically and slidably installed with two rear corner seats, the inner bottom of the lifting frame of the chain hoist is installed with a push piece, and the push piece is connected to the rear corner seat.

[0006] Preferably, the number of the top columns in each group is two, and an extension seat is slidably installed on the outer surface of the two top columns, the ends of the extension seat are fixed to the lifting frame of the chain hoist, and wheel seats are installed at both ends of the push seat wheel, and the side surfaces of the wheel seats are fixed to the top columns.

[0007] Preferably, a return spring is wound around the outer side of the top column, one end of the return spring is fixed to the side surface of the extension seat, and the other end of the return spring is fixed to the wheel seat.

[0008] Preferably, four disc seats are evenly distributed and fixedly installed on the inner bottom surface of the lifting frame of the chain hoist, the length of the two disc seats located in the middle is longer than the length of the disc seats on both sides, a plurality of guide wheels are evenly distributed and installed through the upper end of the disc seat, and a plurality of limiting wheels are evenly distributed and installed through the side surface of the disc seat.

[0009] Preferably, the pushing member includes a servo push cylinder fixedly installed at the center position of the inner bottom surface of the lifting frame of the chain hoist, the output end of the servo push cylinder is fixedly installed with a frame body, a threaded rod is rotatably installed inside the frame body, the threaded rod passes through the front end of the frame body, a threaded sleeve is screwed on the outer surface of the threaded rod, a pushing card seat is arranged above the frame body, the pushing card seat is connected to the threaded sleeve, and the shape of the pushing card seat is concave.

[0010] Preferably, a servo motor is fixedly installed at the front lower end of the frame, a synchronous belt is connected between the output end of the servo motor and the front end of the threaded rod, a connecting block is extended from the front end of the pushing clamp, the end of the connecting block is fixed to the threaded sleeve, limiting lugs are extended on both sides of the threaded sleeve, and the limiting lugs pass through both sides of the frame.

[0011] Preferably, guide sleeves are fixedly installed at the front and rear edges of the inner bottom of the lifting frame of the chain hoist, and guide columns are slidably installed inside the guide sleeves. The guide columns extend through the upper ends of the guide sleeves, and the ends of the guide columns are fixed to the frame body. Limiting grooves are penetrated on both sides of the frame body, and the limiting lugs fit into the inside of the limiting grooves.

[0012] Preferably, the rear ends of the two rear corner seats are fixedly installed with a vertical frame, a square steel sleeve is fixedly installed between the ends of the two vertical frames, two sliding seats are symmetrically fixedly installed at the front end of the square steel sleeve, and two sliding rails are symmetrically fixedly installed at the rear end of the lifting frame of the chain hoist, and the sliding seats are slidably installed on the slide rails, and an upper tooth plate is fixedly installed at the middle part of the front end of the square steel sleeve, and a gear is meshed at the lower part of the side of the upper tooth plate, and a wheel axle is coaxially embedded in the interior of the gear, and the end of the wheel axle is rotatably connected to the lifting frame of the chain hoist, and a connecting frame is fixedly installed at the lower end of the frame near the rear edge, and a lower tooth plate is fixedly installed at the end of the connecting frame, and the upper part of the side of the lower tooth plate is meshed with the gear.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the tray carrying the core material is pushed into the lifting frame of the chain hoist, the rear corner seat will be against the rear end corner of the tray to position the tray. When the chain hoist drives the lifting frame upward, the push seat wheel will roll and move upward synchronously on the protective push rail. At this time, the push seat wheel is pushed by the inclined section at the lower end of the protective push rail to move sideways, thereby driving the front corner seat to move sideways. At the same time, the top column slides in the extended seat to guide the front corner seat so that the front corner seat can move to the front corner of the tray, so as to use the front corner seat and the rear corner seat to block the tray to avoid the displacement and falling of the tray during the lifting process of the chain hoist, thereby improving the safety during lifting and preventing damage to the core.

[0015] 2. When the servo push cylinder moves upward to drive the push card seat to move up and clamp on the support tray to push the support tray, the lower tooth plate will be driven and moved upward synchronously. At this time, the upward lower tooth plate drives the gear to rotate to drive the upper tooth plate meshing with the gear to move downward, and then drives the square steel sleeve to move downward. At this time, the slide seat slides on the slide rail to guide the square steel sleeve, and the square steel sleeve that has moved downward drives the rear angle seat to move downward, so that the rear angle seat is separated from the rear end of the support tray, so that when the support tray is pushed in and out of the warehouse, the rear angle seat will not cause obstruction to the support tray, thereby ensuring the normal entry and exit operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a lifting device for entering and exiting a warehouse according to the present invention;

[0017] Figure 2 This is a schematic diagram of a material support tray of a lifting device for storage in and out of the warehouse according to the present invention;

[0018] Figure 3 A lifting device for entering and exiting a warehouse according to the present invention Figure 2 A magnified view of middle;

[0019] Figure 4 This is a schematic diagram of a disc seat of a lifting device for entering and exiting a warehouse according to the present invention;

[0020] Figure 5 This is a schematic diagram of a material pushing seat of a lifting device for loading and unloading a warehouse according to the present invention;

[0021] Figure 6 This is a schematic diagram of a stand of a lifting device for entering and exiting a warehouse according to the present invention;

[0022] Figure 7 This is a schematic diagram of a servo motor of a lifting device for entering and exiting a warehouse according to the present invention;

[0023] Figure 8 This is a schematic diagram of a connecting frame of a lifting device for entering and exiting a warehouse according to the present invention.

[0024] In the figure: 1. ground rail assembly; 2. chain hoist; 3. protective push rail; 4. support plate; 5. frame; 6. guide column; 7. guide sleeve; 8. connecting frame; 9. lower tooth plate; 10. gear; 11. axle; 12. upper tooth plate; 13. square steel sleeve; 14. push material holder; 15. servo motor; 16. wheel seat; 17. servo push cylinder; 18. stand; 19. rear angle seat; 20. slide rail; 21. slide seat; 22. threaded rod; 23. limiting lug; 24. limiting groove; 25. connecting block; 26. threaded sleeve; 27. synchronous belt; 28. disc seat; 29. ​​guide wheel; 30. limit wheel; 31. extension seat; 32. top column; 33. front angle seat; 34. reset spring; 35. push seat wheel. DETAILED DESCRIPTION

[0025] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0026] like Figure 1-Figure 8 The lifting device for entering and exiting the warehouse shown in the figure includes a ground rail assembly 1 and a chain hoist 2 installed on the ground rail assembly 1. Since using the ground rail assembly 1 to drive the chain hoist 2 to shift left and right and using the chain hoist 2 to lift the support tray 4 are both existing technologies and have been widely used, they are not elaborated in detail here. Two protective push rails 3 are symmetrically fixedly installed at the front end of the frame of the chain hoist 2. The lower end of the protective push rail 3 is inclined and can push the push seat wheel 35, thereby driving the front corner seat 33 to move sideways. At the same time, the top column 32 slides in the extended seat 31 to guide the front corner seat 33, so that the front corner seat 33 can move to the front corner of the support tray 4, so as to use the front corner seat 3 3. The rear corner seat 19 blocks the material tray 4 to prevent the material tray 4 from shifting and falling during the lifting process of the chain hoist 2. The front end of the lifting frame of the chain hoist 2 is symmetrically and elastically installed with two groups of top columns 32. The opposite ends of the two groups of top columns 32 are installed with front corner seats 33. The top columns 32 and the extending seats 31 guide the front corner seats 33. The opposite ends of the two groups of top columns 32 are installed with push seat wheels 35, and the push seat wheels 35 are attached to the protective push rail 3. The rear end of the lifting frame of the chain hoist 2 is symmetrically and slidably installed with two rear corner seats 19. The rear corner seats 19 limit the material tray 4. The inner bottom of the lifting frame of the chain hoist 2 is installed with a push piece, which is connected to the rear corner seat 19.

[0027] There are two top columns 32 in each group, and the outer surfaces of the two top columns 32 are slidably mounted with extension seats 31. The ends of the extension seats 31 are fixed to the lifting frame of the chain hoist 2, and the extension seats 31 play a role in supporting the top columns 32. Wheel seats 16 are installed at both ends of the push-seat wheel 35, and the side surfaces of the wheel seats 16 are fixed to the top columns 32, and the wheel seats 16 play a role in supporting the push-seat wheel 35.

[0028] A return spring 34 is wound around the outer side of the top column 32 , one end of the return spring 34 is fixed to the side surface of the extension seat 31 , the return spring 34 serves to return the front corner seat 33 , and the other end of the return spring 34 is fixed to the wheel seat 16 .

[0029] Four disc seats 28 are evenly distributed and fixedly installed on the inner bottom surface of the lifting frame of the chain elevator 2. The length of the two disc seats 28 located in the middle is longer than the length of the disc seats 28 on both sides. This can shorten the interval between the lifting frame of the chain elevator 2 and the material rack warehouse and the material cart, so that the material tray 4 can be smoothly pushed into the material rack warehouse or pushed from the material cart to the lifting frame. A plurality of guide wheels 29 are evenly distributed and installed through the upper end of the disc seat 28, and a plurality of limit wheels 30 are evenly distributed and installed through the side of the disc seat 28. The guide wheels 29 and the limit wheels 30 play a role in reducing wear and facilitating pushing.

[0030] The pushing member includes a servo push cylinder 17 fixedly installed at the center position of the inner bottom surface of the lifting frame of the chain hoist 2. The output end of the servo push cylinder 17 is fixedly installed with a frame 5. The servo push cylinder 17 drives the pushing card seat 14 and the frame 5 to move up and down. A threaded rod 22 is rotatably installed inside the frame 5. The threaded rod 22 passes through the front end of the frame 5. The frame 5 plays a role in supporting the threaded rod 22. The outer surface of the threaded rod 22 is tightened with a threaded sleeve 26. A pushing card seat 14 is arranged above the frame 5. The threaded rod 22 drives the threaded sleeve 26 to move so as to push the pushing card seat 14. The pushing card seat 14 is connected to the threaded sleeve 26. The shape of the pushing card seat 14 is concave, which can allow the supporting tray 4 to be stuck in the inside of the pushing card seat 14 to facilitate pushing the supporting tray 4.

[0031] A servo motor 15 is fixedly installed at the front of the lower end of the frame 5. The servo motor 15 drives the threaded rod 22 to rotate. A synchronous belt 27 is connected between the output end of the servo motor 15 and the front end of the threaded rod 22. A connecting block 25 is extended from the front end of the pusher holder 14. The synchronous belt 27 plays a transmission role. The end of the connecting block 25 is fixed to the threaded sleeve 26. The connecting block 25 plays a role in fixing the threaded sleeve 26 and the pusher holder 14 together. Limiting lugs 23 are extended on both sides of the threaded sleeve 26. The limiting lugs 23 run through both sides of the frame 5. The limiting lugs 23 play a role in preventing the threaded sleeve 26 from rotating.

[0032] A guide sleeve 7 is fixedly installed at the front and rear edges of the inner bottom of the lifting frame of the chain hoist 2, and a guide column 6 is slidably installed inside the guide sleeve 7. The guide column 6 extends from the upper end of the guide sleeve 7, and the guide sleeve 7 and the guide column 6 play a role in vertically guiding the frame 5. The end of the guide column 6 is fixed to the frame 5, and limiting grooves 24 are opened on both sides of the frame 5. The limiting lugs 23 fit into the inside of the limiting grooves 24, and the limiting grooves 24 play a role in cooperating with the limiting lugs 23.

[0033] The rear ends of the two rear corner seats 19 are fixedly installed with a stand 18, and a square steel sleeve 13 is fixedly installed between the ends of the two stand 18. The stand 18 plays a role in supporting the rear corner seats 19. The front end of the square steel sleeve 13 is symmetrically fixed with two slide seats 21. The rear end of the lifting frame of the chain hoist 2 is symmetrically fixed with two slide rails 20. The slide seats 21 are slidably installed on the slide rails 20. The slide seats 21 and the slide rails 20 play a role in guiding the square steel sleeve 13. The middle part of the front end of the square steel sleeve 13 is fixedly installed There is an upper tooth plate 12, and a gear 10 is meshed on the lower side of the upper tooth plate 12. An axle 11 is coaxially penetrated and inlaid inside the gear 10. The axle 11 serves to carry the gear 10. The end of the axle 11 is rotatably connected to the lifting frame of the chain hoist 2. A connecting frame 8 is fixedly installed near the rear edge of the lower end of the frame 5. A lower tooth plate 9 is fixedly installed on the end of the connecting frame 8. The connecting frame 8 serves to fix the frame 5 and the lower tooth plate 9 together, and the upper side of the lower tooth plate 9 meshes with the gear 10.

[0034] When in use, the material tray 4 carrying the core material is pushed and placed in the lifting frame of the chain hoist 2. At this time, the rear corner seat 19 is against the rear end corner of the material tray 4 to position the material tray 4. Then the ground rail assembly 1 works to drive the chain hoist 2 to move left and right, so that the chain hoist 2 can move to the front of the material storage position of the rack warehouse. Then the chain hoist 2 works to drive the material tray 4 in the lifting frame to move up, so that it can move up to the same height as the material storage position of the rack warehouse. In this process, the push seat wheel 35 is driven by the lifting frame of the chain hoist 2. The push seat wheel 35 is pushed by the inclined section at the lower end of the protective push rail 3 to move sideways, thereby driving the front corner seat 33 to move sideways. At the same time, the top column 32 slides in the extension seat 31 to guide the front corner seat 33 so that the front corner seat 33 can move to the front corner of the support tray 4, so that the front corner seat 33 and the rear corner seat 19 can be used to block the support tray 4 to prevent the support tray 4 from shifting and falling during the lifting process of the chain hoist 2. When the support tray 4 moves up to the same height as the material storage position of the rack warehouse, the servo push cylinder 1 7 drives the frame 5 and the material pushing card seat 14 to move up synchronously, so that the material pushing card seat 14 can be stuck on the material supporting plate 4. In this process, the lower tooth plate 9 is driven by the frame 5 to move up synchronously. At this time, the upwardly moved lower tooth plate 9 drives the gear 10 to rotate, so as to drive the upper tooth plate 12 meshing with the gear 10 to move down, and then drives the square steel sleeve 13 to move down. At this time, the slide seat 21 slides on the slide rail 20 to guide the square steel sleeve 13, and the rear corner seat 19 is driven to move down by the downwardly moved square steel sleeve 13, so that the rear corner seat 19 is separated from the rear end of the material supporting plate 4, and then the servo motor 15 works by driving the threaded rod 22 to rotate through the synchronous belt 27, and then driving the threaded sleeve 26 tightened on the threaded rod 22 to move, so as to drive the pusher seat 14 to move backward, so as to push the supporting plate 4 through the backward moving pusher seat 14. At this time, the guide wheel 29 and the limit wheel 30 roll to assist the supporting plate 4 to move on the plate seat 28, so that the supporting plate 4 can be gradually moved backward and enter the material storage position on the material rack warehouse, so as to complete the storage. On the contrary, the pushing plate 14 is used to push the supporting plate 4 forward, so that it moves from the material rack warehouse to the plate seat 28, and the storage can be completed.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A lifting device for entering and exiting a warehouse, comprising a ground rail assembly (1) and a chain hoist (2) installed on the ground rail assembly (1), characterized in that: The front end of the frame of the chain hoist (2) is symmetrically and fixedly mounted with two protective push rails (3), the lower end of the protective push rails (3) is inclined, the front end of the lifting frame of the chain hoist (2) is symmetrically and elastically mounted with two groups of top columns (32), the opposite ends of the two groups of top columns (32) are both mounted with front corner seats (33), the opposite ends of the two groups of top columns (32) are both mounted with push seat wheels (35), the push seat wheels (35) are fitted on the protective push rails (3), the rear end of the lifting frame of the chain hoist (2) is symmetrically and slidably mounted with two rear corner seats (19), the inner bottom of the lifting frame of the chain hoist (2) is mounted with a push piece, the push piece is connected to the rear corner seat (19); The pusher comprises a servo push cylinder (17) fixedly mounted at the center of the inner bottom surface of the lifting frame of the chain hoist (2), and a frame (5) is fixedly mounted at the output end of the servo push cylinder (17); The rear ends of the two rear corner seats (19) are fixedly mounted with a stand (18), a square steel sleeve (13) is fixedly mounted between the ends of the two stand (18), the front end of the square steel sleeve (13) is symmetrically fixedly mounted with two slide seats (21), the rear end of the lifting frame of the chain hoist (2) is symmetrically fixedly mounted with two slide rails (20), the slide seats (21) are slidably mounted on the slide rails (20), and the middle part of the front end of the square steel sleeve (13) is fixedly mounted with an upper gear. The upper toothed plate (12) is meshed with a gear (10) at the lower side of the upper toothed plate (12), a wheel axle (11) is coaxially inserted into the interior of the gear (10), the end of the wheel axle (11) is rotatably connected to the lifting frame of the chain hoist (2), a connecting frame (8) is fixedly mounted on the lower end of the frame (5) near the rear edge, a lower toothed plate (9) is fixedly mounted on the end of the connecting frame (8), and the upper side of the lower toothed plate (9) is meshed with the gear (10).

2. A lifting device for entering and exiting a warehouse according to claim 1, characterized in that: Each group of top columns (32) has two top columns (32), and the outer surfaces of the two top columns (32) are slidably mounted with extension seats (31), the ends of the extension seats (31) are fixed to the lifting frame of the chain hoist (2), and the two ends of the push-seat wheel (35) are mounted with wheel seats (16), and the side surfaces of the wheel seats (16) are fixed to the top columns (32).

3. A lifting device for entering and exiting a warehouse according to claim 2, characterized in that: A return spring (34) is wound around the outer side of the top column (32), one end of the return spring (34) is fixed to the side surface of the extension seat (31), and the other end of the return spring (34) is fixed to the wheel seat (16).

4. A lifting device for entering and exiting a warehouse according to claim 1, characterized in that: Four disc seats (28) are evenly distributed and fixedly installed on the inner bottom surface of the lifting frame of the chain hoist (2), the length of the two disc seats (28) located in the middle is longer than the length of the disc seats (28) on both sides, a plurality of guide wheels (29) are evenly distributed and installed through the upper end of the disc seat (28), and a plurality of limit wheels (30) are evenly distributed and installed through the side surface of the disc seat (28).

5. The lifting device for entering and exiting a warehouse according to claim 1, characterized in that: A threaded rod (22) is rotatably mounted inside the frame (5), the threaded rod (22) extending through the front end of the frame (5), a threaded sleeve (26) is screwed onto the outer surface of the threaded rod (22), a material pushing seat (14) is arranged above the frame (5), the material pushing seat (14) is connected to the threaded sleeve (26), and the shape of the material pushing seat (14) is a concave shape.

6. A lifting device for entering and exiting a warehouse according to claim 5, characterized in that: A servo motor (15) is fixedly mounted at the front lower end of the frame (5); a synchronous belt (27) is connected between the output end of the servo motor (15) and the front end of the threaded rod (22); a connecting block (25) extends from the front end of the pusher holder (14); the end of the connecting block (25) is fixed to a threaded sleeve (26); limiting lugs (23) extend from both sides of the threaded sleeve (26); and the limiting lugs (23) penetrate through both sides of the frame (5).

7. A lifting device for entering and exiting a warehouse according to claim 6, characterized in that: A guide sleeve (7) is fixedly installed at the front and rear edges of the inner bottom of the lifting frame of the chain hoist (2), and a guide column (6) is slidably installed inside the guide sleeve (7). The guide column (6) extends through the upper end of the guide sleeve (7), and the end of the guide column (6) is fixed to the frame (5). Limiting grooves (24) are opened on both sides of the frame (5), and the limiting lugs (23) are fitted inside the limiting grooves (24).

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