Stacker tensioning mechanism

Abstract

The utility model discloses a stacking machine tensioning mechanism. The stacking machine tensioning mechanism comprises a mounting seat, a side plate, two screw rods, two springs and two first spring seats, the mounting seat is a plate with a U-shaped longitudinal vertical section, two first nuts are fixedly arranged on each of the left side and the right side of the front end of the inner bottom wall of a U-shaped opening of the mounting seat, the two screws are vertically placed and are in threaded connection with the two first nuts respectively, and the longitudinal vertical section of the side plate is in an n shape. First round penetrating holes corresponding to the two first nuts are formed in the left side and the right side of the top of the side plate correspondingly, first spring seats are fixedly arranged at the first round penetrating holes in the left side and the right side of the top of the side plate correspondingly, the side plate is arranged on two screw rods in a sliding and sleeving mode, and the upper ends of the two screw rods are sleeved with second spring seats correspondingly; a spring is arranged between the first spring seat and the second spring seat on each screw rod, and the upper end of each screw rod is in threaded connection with a second nut. The device has the advantages of being simple in structure, convenient to install and high in safety.

Description

Technical Field

[0001] The utility model relates to the field of lifting equipment, and particularly relates to a tensioning mechanism for a stacker crane. Background Technique

[0002] A stacker crane is a kind of logistics equipment, which is used to take goods from a shelf above the ground or put goods on the shelf. Generally, when the stacker crane is in use, it is used together with the shelf, which can greatly improve the logistics efficiency of the company.

[0003] The existing stacker crane generally uses a steel wire rope as a towing rope. When the load platform of the stacker crane rises and falls, the steel wire rope will loosen due to inertia, which will cause the steel wire rope to slip when it rubs against the lower fixed pulley of the speed limit frame body, and it cannot accurately detect the lifting speed and make a timely response, thus resulting in safety problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a tensioning mechanism for a stacker crane, which has the advantages of simple structure, convenient installation and high safety.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A tensioning mechanism for a stacker crane, based on the stacker crane, the stacker crane includes a fixed pulley bracket, an upper fixed pulley, a lower fixed pulley, and a speed limit frame body. The speed limit frame body is located below the fixed pulley bracket. The upper fixed pulley is vertically and horizontally rotatably connected to the fixed pulley bracket, and the lower fixed pulley is vertically and horizontally rotatably connected to the speed limit frame body. The lower fixed pulley is directly below the upper fixed pulley, and a steel wire rope is sleeved on the lower fixed pulley and the upper fixed pulley. The tensioning mechanism for the stacker crane includes a mounting seat, side plates, two screw rods, two springs, and two first spring seats;

[0007] The mounting seat is a plate with a longitudinal vertical section in the shape of a "U". On the left and right sides of the front end of the bottom wall inside the "U" - shaped opening of the mounting seat, two first nuts are fixedly provided. The two screw rods are vertically placed and respectively thread - connected to the two first nuts. The longitudinal vertical section of the side plate is in the shape of a "冂". On the left and right sides of the top of the side plate, first circular through - holes corresponding to the two first nuts are opened. At the first circular through - holes on the left and right sides of the top of the side plate, first spring seats are fixedly provided. The side plate is slidably sleeved on the two screw rods through the two first circular through - holes and the two first spring seats. Second spring seats are respectively sleeved on the upper ends of the two screw rods. A spring is provided between the first spring seat and the second spring seat on each screw rod. A second nut is thread - connected to the upper end of each screw rod, and each second nut abuts against the top of its corresponding second spring seat;

[0008] The bottom of the speed limiting frame is fixedly connected to the top of the side plate, and the speed limiting frame is located between the two screws.

[0009] The preferred options are as follows:

[0010] Preferably, a mounting plate is fixedly provided on the rear side of the mounting seat.

[0011] Preferably, the lower end of each screw is threadedly connected to a third nut, and the bottom of each third nut abuts against its corresponding first nut.

[0012] To sum up, the utility model sets the wire rope on the upper fixed pulley and the lower fixed pulley, and by rotating the second nut downward, since the screw is fixed, the spring is compressed at this time, generating elastic potential energy, and the spring pushes the side plate downward, thereby pushing the speed limit frame down, so that the wire rope can be tightened. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 1 is a schematic diagram of the overall structure of the embodiment;

[0014] Figure 2 2. It is a front sectional view of the fixed pulley bracket and the stacker tensioning mechanism of the embodiment;

[0015] Figure 3 This is a schematic diagram of the overall structure of the mounting base and the mounting plate of the embodiment;

[0016] Figure 4 It is a schematic diagram of the overall structure of the side plate and the first spring seat of the embodiment.

[0017] In the figure, 1. fixed pulley bracket; 2. upper fixed pulley; 3. lower fixed pulley; 4. speed limit frame; 5. wire rope; 6. mounting seat; 7. side plate; 8. screw; 9. spring; 10. first spring seat; 11. first nut; 12. second spring seat; 13. second nut; 14. mounting plate; 15. third nut; 16. fourth nut. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below with reference to the accompanying drawings.

[0019] The same reference numerals are used to represent the same parts. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings.

[0020] A stacker tensioning mechanism, such as Figure 1-Figure 4As shown in the figure, based on the stacker, the stacker includes a fixed pulley support 1, an upper fixed pulley 2, a lower fixed pulley 3, and a speed limit frame body 4. The speed limit frame body 4 is located below the fixed pulley support 1. The upper fixed pulley 2 is vertically and horizontally rotatably connected to the fixed pulley support 1, and the lower fixed pulley 3 is vertically and horizontally rotatably connected to the speed limit frame body 4. The lower fixed pulley 3 is directly below the upper fixed pulley 2, and a steel wire rope 5 is sleeved on the lower fixed pulley 3 and the upper fixed pulley 2.

[0021] The stacker tensioning mechanism includes a mounting seat 6, side plates 7, two screw rods 8, two springs 9, and two first spring seats 10;

[0022] The mounting seat 6 is a plate with a longitudinal vertical section in the shape of a "U", which further ensures the strength of the mounting seat 6. On the left and right sides of the inner bottom wall at the front end of the "U" - shaped opening of the mounting seat 6, two first nuts 11 are fixedly provided. The two screw rods 8 are vertically placed and respectively thread - connected to the two first nuts 11. A third nut 15 is thread - connected to the lower end of each screw rod 8, and the bottom of each third nut 15 abuts against its corresponding first nut 11. Through the double - thread connection of the first nut 11 and the third nut 15, the effect of further fixing the screw rod 8 is achieved.

[0023] The longitudinal vertical section of the side plate 7 is in the shape of a "冂". On the left and right sides of the top of the side plate 7, first circular through - holes corresponding to the two first nuts 11 are opened. At the first circular through - holes on the left and right sides of the top of the side plate 7, first spring seats 10 are fixedly provided. The side plate 7 is slidably sleeved on the two screw rods 8 through the two first circular through - holes and the two first spring seats 10;

[0024] Second spring seats 12 are respectively sleeved on the upper ends of the two screw rods 8. A spring 9 is provided between the first spring seat 10 and the second spring seat 12 on each screw rod 8. A second nut 13 is thread - connected to the upper end of each screw rod 8, and each second nut 13 abuts against the top of its corresponding second spring seat 12. In order to further抵住 (it seems there is a wrong word here, should be "resist") the second spring seat 12, a fourth nut 16 is also thread - connected to the top of each second nut 13.

[0025] The bottom of the speed limit frame body 4 is fixedly connected to the top of the side plate 7, and the speed limit frame body 4 is located between the two screw rods 8.

[0026] A mounting plate 14 is fixedly provided at the rear side of the mounting seat 6, which is convenient for the fixing and installation of the mounting seat 6.

[0027] Specific implementation process:

[0028] Step 1: Thread - connect third nuts 15 to the lower ends of the two screw rods 8 respectively;

[0029] Step 2: Thread the lower ends of the two screws 8 into the two first nuts 11 on the inner bottom wall of the mounting base 6, and rotate the two third nuts 15 until they abut against the tops of their corresponding first nuts 11;

[0030] Step 3: Slidingly sleeve the side plate 7 with the first spring seat 10 onto the two screws 8 through the two first circular through-holes and the two first spring seats 10;

[0031] Step 4: Springs 9 are sleeved on the two screws 8, and the bottom of the spring 9 abuts against the top of the side plate 7;

[0032] Step 5: A second spring seat 12 is sleeved on the upper end of each of the two screws 8 , and each second spring seat 12 abuts against the top of the spring 9 ;

[0033] Step 6: The second nut 13 and the fourth nut 16 are respectively threadedly connected to the top of the two screws 8;

[0034] Step 7: Fix the speed limit frame 4 on the top of the side plate 7;

[0035] Step 8: Put the wire rope 5 on the upper fixed pulley 2 and the lower fixed pulley 3. At this time, the wire rope 5 pulls up the side plate 7;

[0036] Step nine: Rotate the second nut 13 downward. Since the screw 8 is fixed, the spring 9 is compressed at this time, generating elastic potential energy. The spring 9 pushes the side plate 7 downward, and then pushes the speed limit frame 4 down, so that the wire rope 5 can reach a tensioned state.

[0037] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A stacker tensioning mechanism, based on the stacker, comprising a fixed pulley bracket (1), an upper fixed pulley (2), a lower fixed pulley (3), and a speed limiting frame (4), wherein the speed limiting frame (4) is located below the fixed pulley bracket (1), the upper fixed pulley (2) is connected to the fixed pulley bracket (1) in a vertical and horizontal rotational manner, the lower fixed pulley (3) is connected to the speed limiting frame (4) in a vertical and horizontal rotational manner, the lower fixed pulley (3) is located directly below the upper fixed pulley (2), and a steel wire rope (5) is sleeved on the lower fixed pulley (3) and the upper fixed pulley (2), characterized in that: The tensioning mechanism of the stacker includes a mounting base (6), side plates (7), two screw rods (8), two springs (9), and two first spring seats (10); The mounting base (6) is a plate with a longitudinal vertical section in a "U" shape. On the left and right sides of the front end of the inner bottom wall of the "U" - shaped opening of the mounting base (6), two first nuts (11) are fixedly provided. The two screw rods (8) are vertically arranged and are respectively thread - connected to the two first nuts (11). The longitudinal vertical section of the side plate (7) is in a "冂" shape. On the left and right sides of the top of the side plate (7), first circular through - holes corresponding to the two first nuts (11) are provided. At the first circular through - holes on the left and right sides of the top of the side plate (7), first spring seats (10) are fixedly provided. The side plate (7) is slidably sleeved on the two screw rods (8) through the two first circular through - holes and the two first spring seats (10). Second spring seats (12) are respectively sleeved on the upper ends of the two screw rods (8). A spring (9) is provided between the first spring seat (10) and the second spring seat (12) on each screw rod (8). A second nut (13) is thread - connected to the upper end of each screw rod (8), and each second nut (13) abuts against the top of its corresponding second spring seat (12); The bottom of the speed - limiting frame body (4) is fixedly connected to the top of the side plate (7). The speed - limiting frame body (4) is located between the two screw rods (8).

2. A stacker tensioning mechanism according to claim 1, characterized in that: A mounting plate (14) is fixedly provided at the rear part of the mounting base (6).

3. The stacker tensioning mechanism according to claim 1, characterized in that: A third nut (15) is thread - connected to the lower end of each screw rod (8), and the bottom of each third nut (15) abuts against its corresponding first nut (11).

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