Lifting roller conveyor

Abstract

The utility model discloses a lifting roller conveyor, which relates to the technical field of roller conveyors and comprises an underframe, a guide rail and a roller conveyor, a motor is fixedly mounted on one side of the roller conveyor, and the motor is electrically connected with an external controller through a connecting wire. Two first cross arms and two second cross arms are movably mounted on the two sides of the bottom of the roller conveyor respectively, and each first cross arm and each second cross arm are movably connected through a connecting shaft. The first fixing base is arranged on the bottom frame, the lead screw is rotationally installed in the first fixing base, the connecting block is further movably installed at the end, away from the first fixing base, of the lead screw, and the telescopic clamping blocks are arranged on the two sides of the connecting block. The lifting device can be matched with a lead screw, a connecting block, a clamping block and a second fixing base to drive a shear fork structure composed of the two first cross arms and the second cross arms, and the lifting function of the roller conveyor can be manually achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of roller conveyors, in particular to a lifting roller conveyor. Background Art

[0002] Roller conveyor is a kind of efficient material conveying equipment, mainly composed of transmission roller, frame, bracket and drive device. It uses power transmission and friction to make the material placed on the roller move forward as the roller rotates, realizing fast and efficient transportation of materials from one place to another.

[0003] Moreover, in order to adapt to different conveying requirements, the roller conveyor will also be set to a liftable structure. The existing lifting roller conveyors mostly adopt a scissor-type structure and cooperate with a hydraulic cylinder or a screw rod to realize a lifting function of the roller conveyor, such as the Chinese utility model patent disclosed with publication number CN219858877U: a coating unloading lifting positioner, which lifts the roller conveyor upward through a scissor-type lifting platform until the roller conveyor rises to a specified height. After the coating is completed, the motor casing is transported to the roller conveyor through the unloading conveyor line. The motor casing can be moved to assembly lines at different heights through the lifting and displacement of the roller conveyor. However, since the lifting power source of the roller conveyor is the hydraulic cylinder, when the hydraulic cylinder fails, the scissor-type lifting platform cannot be adjusted, and thus the roller conveyor cannot be lifted or lowered. Utility Model Content

[0004] The purpose of the utility model is to provide a lifting roller conveyor, which, with the help of a first fixed seat, a rotating shaft, a screw rod, an adjustable connecting block, a clamping block, and in cooperation with the second fixed seat on the third connecting beam, can manually realize the cross movement of two sets of second cross arms and the first cross arm after the hydraulic cylinder fails, thereby effectively solving the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A lifting roller conveyor includes a base frame, a guide rail and a roller conveyor, wherein a motor is fixedly installed on one side of the roller conveyor, and the motor is electrically connected to an external controller through a connecting line. Two first cross arms and a second cross arm are movably installed on both sides of the bottom of the roller conveyor, and a single first cross arm and a single second cross arm are movably connected through a connecting shaft. A first connecting beam is fixedly connected between the two first cross arms, and a third connecting beam is fixedly connected between the two second cross arms. Two hydraulic cylinders are movably connected between the third connecting beam and the first connecting beam, and the two second cross arms are also movably connected to the second connecting beam on the side away from the roller conveyor. A first fixed seat is fixedly installed on one side of the top of the base frame, a rotating shaft is movably installed in the first fixed seat, a screw rod is movably installed in the rotating shaft, a connecting block is movably installed on the side of the screw rod away from the first fixed seat, and clamping blocks are movably installed on both sides of the connecting block.

[0007] Preferably, a supporting seat is fixedly installed on one side of the top of the base frame.

[0008] Preferably, a roller is rotatably installed on the side of the first cross arm away from the roller conveyor, and the roller also rolls on the top side of the base frame. Two sliders are fixedly installed on both sides of the bottom of the second connecting beam, and the sliders are slidably installed on the corresponding guide rails. With the help of two groups of cross-arranged first cross arms and second cross arms, in conjunction with the hydraulic cylinder, the roller conveyor can be lifted and lowered.

[0009] Preferably, protective bars are fixedly installed on both sides of the top of the roller conveyor.

[0010] Preferably, two second fixing seats are fixedly mounted on the third connecting beam, and a slot is provided on the top of the second fixing seat.

[0011] Preferably, both ends of the rotating shaft are rotatably installed on one side of the first fixed seat and fixedly installed with a first limit block, the end of the screw rod with a smooth surface is inserted and installed in the rotating shaft, the screw rod on one side of the rotating shaft is fixedly installed with a handwheel, and the screw rod on the other side of the rotating shaft is clamped with a retaining spring. The screw rod is rotatably installed in the rotating shaft, so that one end of the screw rod can rotate in the rotating shaft, thereby controlling the horizontal movement of the connecting block.

[0012] Preferably, a screw hole is provided in the connecting block, a first mounting groove is provided at the top and bottom of the connecting block, two second limit blocks are fixedly installed in the first mounting groove, and the connecting block is threadedly connected to one end of the screw rod through the screw hole.

[0013] Preferably, two telescopic blocks are fixedly installed on one side of the two card blocks relative to the connecting block, the telescopic blocks are inserted into the first installation groove, and the second limit block is also inserted into the through groove in the telescopic block. A second installation groove is also provided on the side of the card block opposite to the telescopic block, and a card plate is also movably installed on the top of one of the card blocks.

[0014] Preferably, a first fixed block and a second fixed block are respectively fixedly installed at both ends of the card plate, and the card plate is rotatably installed in one of the second mounting grooves through the first fixed block, and the second fixed block is clamped in the other second mounting groove. The connecting block is threadedly connected to the screw rod through the screw hole, and the two clamping blocks can be respectively clamped into the corresponding clamping slots of the second fixed seat, so that the roller conveyor can be manually lifted and lowered when the hydraulic cylinder fails.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model describes a lifting roller conveyor, in which a first fixed seat is provided on a base frame, and a screw rod is rotatably installed in the first fixed seat, and a connecting block is movably installed on the end of the screw rod away from the first fixed seat, and retractable clamping blocks are provided on both sides of the connecting block. Therefore, after the hydraulic cylinder fails, the scissor structure composed of the two first cross arms and the second cross arms can be driven in conjunction with the screw rod, the connecting block, the clamping block and the second fixed seat, so that the lifting function of the roller conveyor can be manually realized, preventing the goods from staying on the roller conveyor and being unable to be transferred, and facilitating the later maintenance of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the first fixing seat, the rotating shaft and the screw rod of the utility model;

[0019] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the connection structure of the connecting block, the clamping block and the second fixing seat of the utility model;

[0021] Figure 5 This is a schematic diagram of the card structure of the present utility model.

[0022] In the figure: 1. base frame; 2. guide rail; 3. roller conveyor; 4. motor; 5. protective bar; 6. first cross arm; 7. second cross arm; 8. connecting shaft; 9. first connecting beam; 10. roller; 11. second connecting beam; 12. hydraulic cylinder; 13. first fixed seat; 14. rotating shaft; 15. screw rod; 16. connecting block; 17. clamping block; 18. slider; 19. supporting seat; 20. second fixed seat; 21. clamping groove; 22. first limit block; 23. hand wheel; 24. screw hole; 25. first mounting groove; 26. second limit block; 27. telescopic block; 28. second mounting groove; 29. clamping plate; 30. first fixed block; 31. second fixed block; 32. third connecting beam. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] Example 1:

[0025] like Figure 1-Figure 5 As shown, the utility model provides a lifting roller conveyor, including a base frame 1, a guide rail 2 and a roller conveyor 3. A motor 4 is fixedly installed on one side of the roller conveyor 3, and the motor 4 is electrically connected to an external controller through a connecting line. Two first cross arms 6 and second cross arms 7 are movably installed on both sides of the bottom of the roller conveyor 3, and a single first cross arm 6 and a single second cross arm 7 are movably connected through a connecting shaft 8. A first connecting beam 9 is fixedly connected between the two first cross arms 6, a third connecting beam 32 is fixedly connected between the two second cross arms 7, and two hydraulic cylinders 12 are movably connected between the third connecting beam 32 and the first connecting beam 9. The two second cross arms 7 are also movably connected to the second connecting beam 11 on the side away from the roller conveyor 3. A first fixed seat 13 is fixedly installed on one side of the top of the base frame 1, a rotating shaft 14 is movably installed in the first fixed seat 13, a screw rod 15 is movably installed in the rotating shaft 14, a connecting block 16 is movably installed on the side of the screw rod 15 away from the first fixed seat 13, and a clamping block 17 is movably installed on both sides of the connecting block 16.

[0026] A supporting seat 19 is fixedly installed on one side of the top of the chassis 1. A roller 10 is rotatably installed on the side of the first cross arm 6 away from the roller conveyor 3. The roller 10 also rolls on the top side of the chassis 1. Two sliders 18 are fixedly installed on both sides of the bottom of the second connecting beam 11. The sliders 18 are slidably installed on the corresponding guide rails 2. With the help of the two sets of cross-arranged first cross arms 6 and second cross arms 7, in conjunction with the hydraulic cylinder 12, the roller conveyor 3 can be raised and lowered. Protective bars 5 are fixedly installed on both sides of the top of the roller conveyor 3.

[0027] Example 2:

[0028] like Figure 1-Figure 5 As shown, two second fixing seats 20 are fixedly installed on the third connecting beam 32, and a card slot 21 is provided on the top of the second fixing seat 20. The two ends of the rotating shaft 14 are respectively rotatably installed on one side of the first fixing seat 13 and fixedly installed with a first limit block 22. The end of the screw rod 15 with a smooth surface is inserted and installed in the rotating shaft 14. The screw rod 15 on one side of the rotating shaft 14 is fixedly installed with a handwheel 23. The screw rod 15 on the other side of the rotating shaft 14 is clamped with a retaining spring. The screw rod 15 is rotatably installed in the rotating shaft 14, so that one end of the screw rod 15 can rotate in the rotating shaft 14, thereby controlling the connecting block 16 to move horizontally. A screw hole 24 is provided in the connecting block 16, and a first mounting groove 25 is provided at the top and bottom of the connecting block 16. Two second limit blocks 26 are fixedly installed in the first mounting groove 25. The connecting block 16 is threadedly connected to one end of the screw rod 15 through the screw hole 24, and the two card blocks 17 are relative to each other. Two telescopic blocks 27 are fixedly installed on one side of the connecting block 16, and the telescopic block 27 is inserted in the first mounting groove 25, and the second limit block 26 is also inserted in the through groove in the telescopic block 27. A second mounting groove 28 is also provided on the side of the card block 17 away from the telescopic block 27, and a card plate 29 is movably installed on the top of one of the card blocks 17. A first fixed block 30 and a second fixed block 31 are fixedly installed at both ends of the card plate 29, and the card plate 29 is rotatably installed in one of the second mounting grooves 28 through the first fixed block 30, and the second fixed block 31 is carded in the other second mounting groove 28. The connecting block 16 is threadedly connected to the screw rod 15 through the screw hole 24, and the two card blocks 17 can be respectively carded into the card slots 21 of the corresponding second fixed seat 20. In the case of failure of the hydraulic cylinder 12, the roller conveyor 3 can be manually lifted and lowered.

[0029] It should be noted that the present invention is a lifting roller conveyor. When the hydraulic cylinder 12 fails, it is impossible to cooperate with the two sets of first cross arms 6 and second cross arms 7 to lift the roller conveyor 3. At this time, since the roller conveyor 3 drops to the lowest point, and the third connecting beam 32 drives the two second fixed seats 20 to be placed on one side of the connecting block 16, the connecting block 16 can be lifted, so that the connecting block 16 drives the other end of the screw rod 15 to drive the rotating shaft 14 to rotate in the first fixed seat 13, and then, the connecting block 16 is rotated several times on the screw rod 15 through the screw hole 24 and placed above the two second fixed seats 20, and then, the connecting block 16 is inserted and installed between the two second fixed seats 20, and the screw rod 15 is also placed on the top of the supporting seat 19, and then, the card plate 29 is rotated in the corresponding second mounting groove 28 with the first fixed block 30 at one end as the axis, so that the second fixed block 31 at the other end of the card plate 29 is disengaged from the second mounting groove 28 on the other side of the other card block 17. The compression spring connected between the connecting block 16 and the clamping block 17 can be used to push the clamping block 17 to one side. At the same time, the clamping block 17 drives the two telescopic blocks 27 on one side to move in the corresponding first installation groove 25 respectively, and the telescopic block 27 is restricted by the second limit block 26 to limit the movement process. Therefore, the two clamping blocks 17 are respectively inserted into the clamping groove 21 of the corresponding second fixing seat 20. Then, the hand wheel 23 can be manually rotated, so that the hand wheel 23 drives one end of the screw rod 15 to rotate in the rotating shaft 14. At the same time, the screw rod 15 also rotates in the screw hole 24 of the connecting block 16, and the connecting block 16 is restricted by the clamping block 17 and the second fixing seat 20 and cannot rotate. The connecting block 16 can be driven by the screw rod 15 to cooperate with the two second fixing seats 20 to realize the horizontal movement of the third connecting beam 32, so that the third connecting beam 32 controls one end of the two second cross arms 7 to move, thereby realizing the lifting of the two sets of second cross arms 7 and the top of the first cross arm 6, and the manual control of the lifting of the roller conveyor 3 can be realized.

[0030] 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 are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A lifting roller conveyor, characterized in that: The invention comprises a base frame (1), a guide rail (2) and a roller conveyor (3), wherein a motor (4) is fixedly installed on one side of the roller conveyor (3), and the motor (4) is electrically connected to an external controller via a connecting line. Two first cross arms (6) and a second cross arm (7) are movably installed on both sides of the bottom of the roller conveyor (3), and a single first cross arm (6) and a single second cross arm (7) are movably connected via a connecting shaft (8). A first connecting beam (9) is fixedly connected between the two first cross arms (6), and a third connecting beam (32) is fixedly connected between the two second cross arms (7). Two hydraulic cylinders (12) are movably connected between the third connecting beam (32) and the first connecting beam (9), and the second cross arms (7) are also movably connected to the second connecting beam (11) on the side away from the roller conveyor (3). A first fixed seat (13) is fixedly installed on one side of the top of the base frame (1), a rotating shaft (14) is movably installed in the first fixed seat (13), a screw rod (15) is movably installed in the rotating shaft (14), a connecting block (16) is movably installed on the side of the screw rod (15) away from the first fixed seat (13), and clamping blocks (17) are movably installed on both sides of the connecting block (16).

2. The lifting roller conveyor according to claim 1, characterized in that: A supporting seat (19) is fixedly mounted on one side of the top of the base frame (1).

3. The lifting roller conveyor according to claim 2, characterized in that: A roller (10) is rotatably mounted on one end of the first cross arm (6) away from the roller conveyor (3), and the roller (10) also rolls on one side of the top of the base frame (1). Two sliders (18) are fixedly mounted on both sides of the bottom of the second connecting beam (11), and the sliders (18) are slidably mounted on the corresponding guide rails (2).

4. The lifting roller conveyor according to claim 3, characterized in that: Protective bars (5) are fixedly mounted on both sides of the top of the roller conveyor (3).

5. The lifting roller conveyor according to claim 4, characterized in that: Two second fixing seats (20) are fixedly mounted on the third connecting beam (32), and a clamping slot (21) is provided on the top of the second fixing seat (20).

6. The lifting roller conveyor according to claim 5, characterized in that: The two ends of the rotating shaft (14) are respectively rotatably mounted on one side of the first fixed seat (13) and fixedly mounted with a first limit block (22); the end of the screw rod (15) having a smooth surface is inserted and mounted in the rotating shaft (14); the screw rod (15) located on one side of the rotating shaft (14) is fixedly mounted with a handwheel (23); the screw rod (15) located on the other side of the rotating shaft (14) is clamped with a retaining spring.

7. The lifting roller conveyor according to claim 6, characterized in that: A screw hole (24) is provided in the connecting block (16), and a first mounting groove (25) is provided at the top and bottom of the connecting block (16). Two second limiting blocks (26) are fixedly installed in the first mounting groove (25), and the connecting block (16) is threadedly connected to one end of the screw rod (15) through the screw hole (24).

8. The lifting roller conveyor according to claim 7, characterized in that: Two telescopic blocks (27) are fixedly mounted on one side of the two clamping blocks (17) relative to the connecting block (16), respectively. The telescopic blocks (27) are inserted into the first mounting groove (25), and the second limiting block (26) is also inserted into the through groove in the telescopic block (27). A second mounting groove (28) is also provided on the side of the clamping block (17) facing away from the telescopic block (27), and a clamping plate (29) is movably mounted on the top of one of the clamping blocks (17).

9. The lifting roller conveyor according to claim 8, characterized in that: A first fixing block (30) and a second fixing block (31) are fixedly mounted on both ends of the card plate (29), and the card plate (29) is rotatably mounted in one of the second mounting grooves (28) through the first fixing block (30), while the second fixing block (31) is clamped in the other second mounting groove (28).

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