A jacking and landing deviation correction pulley block device

Abstract

The utility model provides a kind of to realize jacking landing deviation correction's pulley block device, including base, the base lower surface is equipped with servo motor, the output shaft of servo motor is equipped with the vertical arrangement of screw rod, the screw rod is connected with lifting seat by ball nut pair, the guiding rod is installed between the positioning seat and base by screw, the lifting seat upper surface side close to guiding rod is equipped with support plate, the side close to guiding rod of support plate is equipped with horizontal plate, the middle position of one side of horizontal plate face to guiding rod is rotatably installed with the limit wheel of rolling contact with guiding rod, the both ends of horizontal plate are equipped with screw rod, the both ends of support plate are equipped with horizontal hole, the both sides of horizontal hole along screw rod length direction are equipped with the first nut of screw thread connection with screw rod, the utility model has the following beneficial effects: the abrasion of guiding rod side gradually increases, and the replacement frequency of guiding rod reduces.

Description

Technical Field

[0001] This utility model is a pulley block device for realizing top lifting and lowering correction, belonging to the field of machinery. Background Technology

[0002] A lead screw driven by a servo motor is connected to the lifting base via a ball bearing nut pair. When the servo motor operates, the lifting base drives the support arm mounted on it to rise and fall. Guide rods are screwed between the base and positioning seat at both ends of the lead screw. Each guide rod has two parallel sides that roll in contact with pulleys rotatably connected to the lifting base. During the lifting and lowering process, if a deviation occurs, the pulleys, in cooperation with the guide rods, correct the position of the lifted object, ensuring it remains vertical and preventing tilting or deviation. This structure is one type of pulley system for lifting and lowering with deviation correction. Currently, the contact area between the guide rod and the pulley is the width of the guide rod's side. This causes wear on the contact surfaces of the guide rod and pulley during repeated contact, resulting in a high replacement frequency for the guide rod. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pulley block device for realizing top lifting and lowering correction, so as to solve the problems mentioned in the background technology. This utility model makes the wear on the side of the guide rod gradually increase, thus reducing the replacement frequency of the guide rod.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pulley system for top lifting and bottom correction, comprising a base, a servo motor mounted on the lower surface of the base, a vertically arranged lead screw mounted on the output shaft of the servo motor, a lifting seat connected to the lead screw via a ball nut pair, support arms mounted on two parallel sides of the lifting seat, a positioning seat rotatably mounted on the upper end of the lead screw, a guide rod mounted between the positioning seat and the base via screws, pulleys rollingly contacting two parallel sides of the guide rod, the pulleys rotatably connected to the lifting seat, a support plate mounted on the upper surface of the lifting seat near the guide rod, a horizontal plate provided on the side of the support plate near the guide rod, a limiting wheel rotatably mounted at the center of the side of the horizontal plate facing the guide rod, a screw mounted at both ends of the horizontal plate, a horizontal hole provided at both ends of the support plate, the screw passing through the horizontal hole, and a first nut threadedly connected to the screw on both sides of the horizontal hole along the length of the screw.

[0005] Furthermore, L-shaped plates are installed at both ends of the horizontal plate. The side of the L-shaped plate facing the support plate has a circular hole aligned with the horizontal hole. One end of the screw passes through the circular hole. A second nut is provided on both sides of the circular hole along the length of the screw. The second nut is threadedly connected to the screw.

[0006] Furthermore, the horizontal plate and the L-shaped plate are integrally formed, and the part of the L-shaped plate with the circular hole is arranged parallel to the horizontal plate.

[0007] Furthermore, a U-shaped frame is installed at the center of the side of the horizontal plate facing the guide rod, and the limiting wheel is rotatably installed inside the U-shaped frame.

[0008] Furthermore, an upper photoelectric switch is installed on one side of the positioning seat, and a lower photoelectric switch that cooperates with the upper photoelectric switch is installed on one side of the base. A baffle plate that cooperates with the lower photoelectric switch and the upper photoelectric switch is provided between the lower photoelectric switch and the upper photoelectric switch, and the baffle plate is connected to the lifting seat.

[0009] Furthermore, the positioning seat has a T-shaped structure, and two fixing holes are provided on one side of the positioning seat.

[0010] Furthermore, positioning grooves are formed on both parallel sides of the lifting seat, and one end of the support arm is installed in the positioning groove by screws.

[0011] The beneficial effects of this utility model are:

[0012] 1. Increase the length of the screw between the support plate and the guide rod, and then use two first nuts to limit the relative position of the screw and the support plate. At this time, the relative position of the limit wheel and the lifting seat is restricted. When the two ends of the guide rod are connected to the positioning seat and the base respectively by the screw, the limit wheel will contact the side of the guide rod facing the screw. Under the restriction of the limit wheel, screw, lifting seat and other components, the pulley only contacts a part of the side of the guide rod. When the part of the guide rod that first contacts the pulley wears thin, adjust the position of the limit wheel so that the pulley contacts the unworn area of ​​the side of the guide rod, so that the wear on the side of the guide rod gradually increases and the replacement frequency of the guide rod is reduced.

[0013] 2. By using the second nut to connect one end of the screw to the L-shaped plate, a larger space is formed between the L-shaped plate and the support plate, providing sufficient space for tightening the first nut and the second nut. There is no need to increase the distance between the support plate and the guide rod to provide space for adjusting the position of the limit wheel, which is conducive to reducing the overall size. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the pulley block device for realizing top lifting and lowering correction according to the present invention;

[0016] Figure 2 This is another perspective view of the pulley block device for realizing top lifting and lowering correction according to the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is an assembly diagram of the screw, support plate, limit wheel, and lifting seat in a pulley block device for realizing top lifting and bottom correction according to the present invention.

[0019] Figure 5 This is an assembly diagram of the screw, support plate, cross plate and lifting seat in a pulley block device for realizing top lifting and bottom correction according to the present invention.

[0020] In the diagram: 1-base, 2-lower photoelectric switch, 3-baffle plate, 4-support arm, 5-lifting seat, 6-upper photoelectric switch, 7-positioning seat, 8-lead screw, 9-guide rod, 10-support plate, 11-horizontal plate, 12-pulley, 13-servo motor, 14-limit wheel, 15-U-shaped frame, 16-screw, 17-first nut, 18-second nut, 19-L-shaped plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a pulley block device for top lifting and bottom correction, including a base 1, a servo motor 13 mounted on the lower surface of the base 1, a vertically arranged lead screw 8 mounted on the output shaft of the servo motor 13, a lifting seat 5 connected to the lead screw 8 through a ball nut pair, and a support arm 4 mounted on each of the two parallel sides of the lifting seat 5. The two parallel sides of the lifting seat 5 are recessed to form positioning grooves, allowing one end of the support arm 4 to be installed in the positioning groove by screws, improving the stability of the connection between the support arm 4 and the lifting seat 5. A positioning seat 7 is rotatably mounted on the upper end of the lead screw 8. The positioning seat 7 has a T-shaped structure and two fixing holes on one side. The positioning seat 7 and the base 1 are installed at the desired positions using screws, thus limiting the position of the positioning seat 7 and the base 1.

[0023] See Figure 1 and Figure 2 A guide rod 9 is installed between the positioning seat 7 and the base 1 by screws. The guide rod 9 has two parallel sides that are in rolling contact with pulleys 12. The pulleys 12 are rotatably connected to the lifting seat 5. When the servo motor 13 is working, it drives the lead screw 8 to rotate. The ball nut pair converts the rotational motion of the lead screw 8 into the lifting motion of the lifting seat 5, thereby raising and lowering the pallet connected to the support arm 4. During this process, the pulleys 12 roll along the guide rod 9, thereby achieving the purpose of correction and anti-deviation.

[0024] See Figures 1-5 A support plate 10 is installed on the upper surface of the lifting seat 5 near the guide rod 9. A horizontal plate 11 is provided on the side of the support plate 10 near the guide rod 9. A U-shaped frame 15 is installed in the middle of the side of the horizontal plate 11 facing the guide rod 9. A limiting wheel 14 that rolls in contact with the guide rod 9 is rotatably installed inside the U-shaped frame 15. Screws 16 are installed at both ends of the horizontal plate 11. Horizontal holes are opened at both ends of the support plate 10. The screws 16 pass through the horizontal holes. First nuts 17 that are threaded to the screws 16 are provided on both sides of the horizontal holes along the length of the screws 16, increasing the length of the screws 16 between the support plate 10 and the guide rod 9. Then, the two first nuts 17 are used to limit the screws 16. The relative position of 6 and support plate 10 is restricted. At this time, the relative position of limit wheel 14 and lifting seat 5 is restricted. When the two ends of guide rod 9 are connected to positioning seat 7 and base 1 respectively by screws, limit wheel 14 will contact the side of guide rod 9 facing screw 8. Then, under the restriction of components such as limit wheel 14, screw 16, and lifting seat 5, pulley 12 will only contact a part of the side of guide rod 9. When the part of guide rod 9 that first contacts pulley 12 wears thin, the position of limit wheel 14 is adjusted so that pulley 12 contacts the unworn area of ​​the side of guide rod 9, so that the wear on the side of guide rod 9 gradually increases and the replacement frequency of guide rod 9 is reduced.

[0025] See Figures 1-5 Both ends of the horizontal plate 11 are equipped with L-shaped plates 19. The horizontal plate 11 and the L-shaped plates 19 are integrally formed. The part of the L-shaped plate 19 with the round hole is arranged parallel to the horizontal plate 11. The side of the L-shaped plate 19 facing the support plate 10 has a round hole that is aligned with the horizontal hole. One end of the screw 16 passes through the round hole. The round hole has a second nut 18 on both sides along the length of the screw 16. The second nut 18 is threaded to the screw 16. The second nut 18 is used to connect one end of the screw 16 to the L-shaped plate 19, thereby forming a large space between the L-shaped plate 19 and the support plate 10. This provides sufficient space for turning the first nut 17 and the second nut 18, without increasing the distance between the support plate 10 and the guide rod 9. This provides space for adjusting the position of the limit wheel 14, which is beneficial for reducing the overall size.

[0026] See Figure 1 and Figure 2An upper photoelectric switch 6 is installed on one side of the positioning seat 7, and a lower photoelectric switch 2 that cooperates with the upper photoelectric switch 6 is installed on one side of the base 1. A baffle plate 3 that cooperates with the lower photoelectric switch 2 and the upper photoelectric switch 6 is provided between the lower photoelectric switch 2 and the upper photoelectric switch 6. The baffle plate 3 is connected to the lifting seat 5. When the baffle plate 3 moves to the position of the upper photoelectric switch 6, the lifting seat 5 no longer rises. Similarly, when the baffle plate 3 moves to the position of the lower photoelectric switch 2, the lifting seat 5 no longer descends. The working principle of the upper photoelectric switch 6, the lower photoelectric switch 2 and the servo motor 13 is fully disclosed in the prior art, so it will not be described in detail here.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pulley system device for realizing top lifting and lowering correction, comprising a base (1), characterized in that: A servo motor (13) is mounted on the lower surface of the base (1). A vertically arranged lead screw (8) is mounted on the output shaft of the servo motor (13). A lifting seat (5) is connected to the lead screw (8) via a ball nut pair. Support arms (4) are mounted on two parallel sides of the lifting seat (5). A positioning seat (7) is rotatably mounted on the upper end of the lead screw (8). A guide rod (9) is mounted between the positioning seat (7) and the base (1) via screws. A pulley (12) is rolled on two parallel sides of the guide rod (9). The pulley (12) is rotatably connected to the lifting seat (5). A support plate (10) is installed on the upper surface of the lifting seat (5) near the guide rod (9). A horizontal plate (11) is provided on the side of the support plate (10) near the guide rod (9). A limiting wheel (14) that rolls in contact with the guide rod (9) is rotatably installed in the middle of the side of the horizontal plate (11) facing the guide rod (9). A screw (16) is installed at both ends of the horizontal plate (11). A horizontal hole is opened at both ends of the support plate (10). The screw (16) passes through the horizontal hole. A first nut (17) that is threadedly connected to the screw (16) is provided on both sides of the horizontal hole along the length direction of the screw (16).

2. The pulley block device for realizing top lifting and lowering correction according to claim 1, characterized in that: Both ends of the horizontal plate (11) are equipped with L-shaped plates (19). The side of the L-shaped plate (19) facing the support plate (10) has a round hole aligned with the horizontal hole. One end of the screw (16) passes through the round hole. The round hole has a second nut (18) on both sides along the length of the screw (16). The second nut (18) is threadedly connected to the screw (16).

3. The pulley block device for realizing top lifting and lowering correction according to claim 2, characterized in that: The horizontal plate (11) and the L-shaped plate (19) are integrally formed structures, and the part of the L-shaped plate (19) with the round hole is arranged parallel to the horizontal plate (11).

4. The pulley block device for realizing top lifting and lowering correction according to claim 1, characterized in that: A U-shaped frame (15) is installed at the center of the side of the horizontal plate (11) facing the guide rod (9), and the limiting wheel (14) is rotatably installed inside the U-shaped frame (15).

5. The pulley block device for realizing top lifting and lowering correction according to claim 1, characterized in that: The positioning seat (7) is equipped with an upper photoelectric switch (6) on one side, and the base (1) is equipped with a lower photoelectric switch (2) that cooperates with the upper photoelectric switch (6) on one side. A baffle plate (3) that cooperates with the lower photoelectric switch (2) and the upper photoelectric switch (6) is provided between the lower photoelectric switch (2) and the upper photoelectric switch (6). The baffle plate (3) is connected to the lifting seat (5).

6. The pulley block device for realizing top lifting and lowering correction according to claim 1, characterized in that: The positioning seat (7) has a T-shaped structure, and two fixing holes are opened on one side of the positioning seat (7).

7. The pulley block device for realizing top lifting and lowering correction according to claim 1, characterized in that: The lifting seat (5) has two parallel sides that are recessed to form positioning grooves, and one end of the support arm (4) is installed in the positioning groove by screws.

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