High-strength lead screw elevator

Abstract

The utility model discloses a high-strength lead screw lifter which comprises a lifter body, a cover top arranged above the lifter body, a mounting seat arranged at the bottom of the lifter body, a worm cavity arranged on the front side of the lifter body, and a transmission worm arranged in the middle of the inside of the worm cavity. A protective sleeve is arranged on the outer side of the lifting lead screw, an outer ring is arranged on the top of the protective sleeve, an inner ring is arranged at the bottom of the protective sleeve, the outer ring and the inner ring are connected in a nested mode, positioning rings are arranged on the upper side and the lower side of the lifter body respectively, and positioning rods are arranged in the positioning rings. The connection of the positioning rod with the fixed flange and the connecting flange can effectively reduce the shaking of the lifting screw rod, the stability and stability of the lifting process are ensured, the design of the protective sleeve can effectively protect the screw rod from external pollution, dust or other damage, the nested connection of the outer ring and the inner ring further enhances the sealing performance of the protective sleeve, and the service life of the protective sleeve is prolonged. And dirt is prevented from entering a working area of the lifting screw rod.

Description

Technical Field

[0001] The utility model belongs to the technical field related to screw jacks, and particularly relates to a high-strength screw jack. Background Technique

[0002] A screw jack, also known as a screw lift or a lead screw lift, is a mechanical device that uses a screw rod as the lifting drive. It realizes the lifting movement by rotating the screw rod and is usually driven by a motor. Screw jacks are widely used in various industrial and mechanical equipment for precisely adjusting height, position or angle. Its main characteristics are simple structure, precise positioning and stable load, and it is suitable for occasions that require vertical lifting or positioning.

[0003] However, in the existing screw jack, the screw rod is exposed, and the screw rod may come into contact with dust, dirt or particles in the external environment during the lifting process, which will cause wear and damage to the screw rod, affecting its service life and lifting efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a high-strength screw jack to solve the problem that in the existing screw jack, the screw rod is exposed, and the screw rod may come into contact with dust, dirt or particles in the external environment during the lifting process, which will cause wear and damage to the screw rod, affecting its service life and lifting efficiency as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a high-strength screw jack, including a jack body;

[0006] A cover top is arranged at the upper position of the jack body, a mounting seat is installed at the bottom position of the jack body, a worm cavity is arranged at the front side position of the jack body, a driving worm is arranged at the middle position inside the worm cavity, positioning bolts are arranged in an array inside the worm cavity, and the cover top and the mounting seat are fixedly connected to the jack body through fixing bolts;

[0007] A lifting screw rod is arranged at the middle position inside the jack body, a fixed flange is arranged at the top position of the lifting screw rod, a connecting flange is arranged at the bottom position of the lifting screw rod, and a protective sleeve is arranged at the outer side position of the lifting screw rod.

[0008] Preferably, an outer ring is arranged at the top position of the protective sleeve, an inner ring is arranged at the bottom position of the protective sleeve, and the outer ring and the inner ring are nested and connected.

[0009] Preferably, positioning rings are respectively arranged at the upper and lower positions of the jack body, positioning rods are arranged inside the positioning rings, and the positioning rods are fixedly connected to the fixed flange and the connecting flange respectively.

[0010] Preferably, the protective sleeve at the top is fixedly connected to the fixed flange, and four positioning rods are arranged in an array.

[0011] Preferably, a fixed cavity is arranged at the inner position of the fixed flange, a connecting screw is arranged at the middle position of the bottom of the connecting flange, and the fixed cavity corresponds to the connecting screw.

[0012] Preferably, fixing screws are arranged in an array inside the fixed flange and the connecting flange, and tightening nuts are arranged above the fixing screws.

[0013] Preferably, the lifting lead screw is threadedly connected to the fixed flange and the connecting flange, and the lifting lead screw, the fixed flange and the connecting flange are made of steel materials.

[0014] Compared with the prior art, the utility model provides a high-strength lead screw lift, which has the following

[0015] Beneficial effects:

[0016] 1. Through the setting of the protective sleeve, outer ring, inner ring, positioning ring and positioning rod, the arrangement of the four positioning rods in an array helps to improve the stability of the lift. The connection of the positioning rod with the fixed flange and the connecting flange can effectively reduce the shaking of the lifting lead screw, ensuring the stability and smoothness of the lifting process. The design of the protective sleeve can effectively protect the lead screw from external pollution, dust or other damages. The nested connection of the outer ring and the inner ring further strengthens the sealing performance of the protective sleeve, preventing dirt from entering the working area of the lifting lead screw. Through the precise positioning of the positioning ring and the positioning rod, the movement trajectory of the lifting lead screw is effectively controlled, which helps to improve the operation accuracy and positioning accuracy of the lift. The stable connection of the fixed flange and the connecting flange with the lead screw, as well as the protection of the protective sleeve, can reduce friction and wear, lower the mechanical failure rate, and thus extend the service life of the lift. The protective sleeve and the fixing components in the design can reduce the direct contact with the internal structure, making daily maintenance and overhaul more convenient. Regular cleaning and inspection of the protective sleeve and flange components also help to keep the equipment in good condition. The precise fixation of the positioning rod and the effective protection of the protective sleeve both help to reduce vibration, thereby improving the running stability and comfort of the equipment. The nested connection of the inner ring and the outer ring makes the design of the protective sleeve more compact and efficient, optimizing the structure of the lift and making it more superior in performance and appearance.

[0017] 2. Through the settings of the fixed cavity, connecting screw, fixing screw and tightening nut, the use of internal fixed screws and nuts can make the elevator more compact in structure, reduce the use of external hardware, improve the overall rigidity and strength of the equipment. The fixed screw and nut structure can ensure the stability of the lifting screw rod, reduce the risk of accidental loosening or falling off, and improve the safety of the lifting operation. By adjusting the tightening nut, the thread connection tightness between the lifting screw rod, the fixed flange and the connecting flange can be precisely controlled, thus ensuring the accuracy and reliability of the lifting movement. The connecting screw arranged in the connecting flange corresponds to the fixed cavity of the fixed flange, which can evenly distribute the lifting force on the screw rod, improving the stability and durability of the lifting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the present utility model.

[0019] Figure 2 is a schematic structural view of the cross-section of the protective sleeve in the present utility model.

[0020] Figure 3 is a schematic structural view of the fixing screw in the present utility model.

[0021] Figure 4 is a schematic structural view of the connection of the protective sleeve in the present utility model.

[0022] In the figure: 1. Elevator main body; 2. Cover top; 3. Protective sleeve; 4. Fixed flange; 5. Positioning rod; 6. Worm cavity; 7. Driving worm; 8. Positioning bolt; 9. Fixing bolt; 10. Connecting flange; 11. Connecting screw; 12. Positioning ring; 13. Mounting seat; 14. Lifting screw rod; 15. Fixed cavity; 16. Fixing screw; 17. Tightening nut; 18. Outer ring; 19. Inner ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides a high-strength screw elevator as Figures 1-4 shown, including an elevator main body 1;

[0025] Above the elevator main body 1, a cover top 2 is provided. At the bottom position of the elevator main body 1, a mounting seat 13 is installed. At the front side position of the elevator main body 1, a worm cavity 6 is provided. In the middle position inside the worm cavity 6, a driving worm 7 is provided. Inside the worm cavity 6, positioning bolts 8 are arranged in an array. The cover top 2 and the mounting seat 13 are fixedly connected to the elevator main body 1 through fixing bolts 9;

[0026] In the middle position inside the elevator main body 1, a lifting screw rod 14 is provided. At the top position of the lifting screw rod 14, a fixing flange 4 is provided. At the bottom position of the lifting screw rod 14, a connecting flange 10 is provided. On the outer side position of the lifting screw rod 14, a protective sleeve 3 is provided.

[0027] At the top position of the protective sleeve 3, an outer ring 18 is provided. At the bottom position of the protective sleeve 3, an inner ring 19 is provided. The outer ring 18 and the inner ring 19 are nested and connected.

[0028] At the upper and lower positions of the elevator main body 1, positioning rings 12 are respectively provided. Inside the positioning rings 12, positioning rods 5 are provided. The positioning rods 5 are fixedly connected to the fixing flange 4 and the connecting flange 10 respectively.

[0029] The top protective sleeve 3 is fixedly connected to the fixing flange 4. Four positioning rods 5 are arranged in an array.

[0030] Inside the fixing flange 4, a fixing cavity 15 is provided. At the middle position at the bottom of the connecting flange 10, a connecting screw rod 11 is provided. The fixing cavity 15 corresponds to the connecting screw rod 11.

[0031] Inside the fixing flange 4 and the connecting flange 10, fixing screw rods 16 are arranged in an array. Above the fixing screw rods 16, tightening nuts 17 are provided.

[0032] The lifting screw rod 14 is threadedly connected to the fixing flange 4 and the connecting flange 10. The lifting screw rod 14, the fixing flange 4 and the connecting flange 10 are made of steel material.

[0033] In this embodiment, for the specific implementation steps of a high-strength screw elevator, before starting, check the lubrication status of the screw rod and the worm cavity 6 to ensure that the lubricating oil or grease is sufficient and not contaminated. Add or replace the lubricant as needed. Ensure that the power supply of the elevator is correctly connected and the power switch is in the off state. Turn on the power supply and operate the control system to start the elevator. Pay attention to observing whether the movement of the lifting screw rod 14 and the worm is smooth. Use the control system to adjust the position of the lifting screw rod 14 as needed to ensure that the movement of the elevator is stable and there is no abnormal noise. During the lifting process, regularly check the operating status of each component of the elevator, pay attention to the lifting effect of the lifting screw rod 14 and the working status of the protective sleeve. After use, turn off the power supply and disconnect the power connection. Ensure that after the elevator stops running, carry out necessary cleaning and maintenance.

[0034] As Figures 1-2 and Figure 4 shown, a lifting lead screw 14 is provided at the middle position inside the elevator main body 1. A fixed flange 4 is provided at the top position of the lifting lead screw 14. A connecting flange 10 is provided at the bottom position of the lifting lead screw 14. A protective sleeve 3 is provided at the outer side position of the lifting lead screw 14. An outer ring 18 is provided at the top position of the protective sleeve 3. An inner ring 19 is provided at the bottom position of the protective sleeve 3. The outer ring 18 and the inner ring 19 are nested and connected. Positioning rings 12 are respectively provided at the upper and lower sides of the elevator main body 1. Positioning rods 5 are provided inside the positioning rings 12. The positioning rods 5 are fixedly connected to the fixed flange 4 and the connecting flange 10 respectively. The top protective sleeve 3 is fixedly connected to the fixed flange 4. Four positioning rods 5 are arranged in an array.

[0035] Preferably, the four-array arrangement of the positioning rods 5 helps to improve the stability of the elevator. The connection of the positioning rods 5 to the fixed flange 4 and the connecting flange 10 can effectively reduce the sway of the lifting lead screw 14, ensuring the stability and smoothness of the lifting process. The design of the protective sleeve 3 can effectively protect the lead screw from external pollution, dust or other damages. The nested connection of the outer ring 18 and the inner ring 19 further strengthens the sealing performance of the protective sleeve 3, preventing dirt from entering the working area of the lifting lead screw 14. Through the precise positioning of the positioning rings 12 and the positioning rods 5, the movement track of the lifting lead screw 14 is effectively controlled, which helps to improve the operation accuracy and positioning accuracy of the elevator. The stable connection of the fixed flange 4 and the connecting flange 10 to the lead screw, as well as the protection of the protective sleeve 3, can reduce friction and wear, lower the mechanical failure rate, and thus extend the service life of the elevator. The protective sleeve and the fixing components in the design can reduce the direct contact with the internal structure, making daily maintenance and overhaul more convenient. Regular cleaning and inspection of the protective sleeve 3 and the flange components also help to keep the equipment in good condition. The precise fixing of the positioning rods 5 and the effective protection of the protective sleeve 3 both help to reduce vibration, thereby improving the running stability and comfort of the equipment. The nested connection of the inner ring 18 and the outer ring 19 makes the design of the protective sleeve 3 more compact and efficient, optimizing the structure of the elevator and making it more superior in terms of performance and appearance.

[0036] As Figures 2-3 shown, a fixed cavity 15 is provided inside the fixed flange 4. A connecting screw 11 is provided at the middle position of the bottom of the connecting flange 10. The fixed cavity 15 corresponds to the connecting screw 11. Fixed screws 16 are arranged in an array inside the fixed flange 4 and the connecting flange 10. A tightening nut 17 is provided above the fixed screws 16.

[0037] Preferably, the use of internally fixed screws and nuts can make the elevator more compact in structure, reduce the use of external hardware, improve the overall rigidity and strength of the equipment. The fixed screw and nut structure can ensure the stability of the lifting screw rod 14, reduce the risk of accidental loosening or falling off, and improve the safety of the lifting operation. By adjusting the tightening nut 17, the tightness of the threaded connection between the lifting screw rod 14, the fixed flange 4 and the connecting flange 10 can be precisely controlled, thus ensuring the accuracy and reliability of the lifting movement. Regularly adjusting the tightening nut 17 can maintain the connection stability. The connecting screw 11 provided in the connecting flange 10 corresponds to the fixed cavity 15 of the fixed flange 4, which can evenly distribute the lifting force on the screw rod and improve the stability and durability of the lifting system.

[0038] As Figures 1-4 shown, the lifting screw rod 14 is threadedly connected to the fixed flange 4 and the connecting flange 10. The lifting screw rod 14, the fixed flange 4 and the connecting flange 10 are made of steel material.

[0039] Optionally, the steel material has excellent mechanical strength and wear resistance, enabling the lifting screw rod 14, the fixed flange 4 and the connecting flange 10 to withstand large loads and strong mechanical impacts, enhancing the overall durability and service life of the equipment. The threaded connection made of steel can provide a strong locking force to ensure the stable connection between the lifting screw rod 14 and the flange, reducing operation instability or equipment failures caused by loose threads. The high strength of the steel enables the lifting screw rod 14, the fixed flange 3 and the connecting flange 10 to withstand large loads and is suitable for heavy-duty application scenarios, ensuring stable operation of the equipment under high-intensity working conditions.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-strength screw jack, comprising a jack body (1); A cover top (2) is arranged above the jack body (1), a mounting seat (13) is installed at the bottom of the jack body (1), a worm cavity (6) is arranged at the front side of the jack body (1), a driving worm (7) is arranged at the middle position inside the worm cavity (6), positioning bolts (8) are arranged in an array inside the worm cavity (6), and the cover top (2) and the mounting seat (13) are fixedly connected to the jack body (1) through fixing bolts (9); It is characterized in that: A lifting screw rod (14) is arranged at the middle position inside the jack body (1), a fixing flange (4) is arranged at the top of the lifting screw rod (14), a connecting flange (10) is arranged at the bottom of the lifting screw rod (14), and a protective sleeve (3) is arranged at the outer side of the lifting screw rod (14).

2. The high-strength screw jack according to claim 1, characterized in that: An outer ring (18) is arranged at the top of the protective sleeve (3), an inner ring (19) is arranged at the bottom of the protective sleeve (3), and the outer ring (18) and the inner ring (19) are nested and connected.

3. The high-strength screw jack according to claim 2, wherein: Positioning rings (12) are respectively arranged at the upper and lower sides of the jack body (1), positioning rods (5) are arranged inside the positioning rings (12), and the positioning rods (5) are fixedly connected to the fixing flange (4) and the connecting flange (10) respectively.

4. A high-strength screw jack according to claim 3, characterized in that: The top protective sleeve (3) is fixedly connected to the fixing flange (4), and four positioning rods (5) are arranged in an array.

5. A high-strength screw jack according to claim 1, characterized in that: A fixing cavity (15) is arranged inside the fixing flange (4), a connecting screw rod (11) is arranged at the middle position of the bottom of the connecting flange (10), and the fixing cavity (15) corresponds to the connecting screw rod (11).

6. The high-strength screw jack according to claim 5, wherein: Fixing screw rods (16) are arranged in an array inside the fixing flange (4) and the connecting flange (10), and tightening nuts (17) are arranged above the fixing screw rods (16).

7. A high-strength screw jack according to claim 1, characterized in that: The lifting screw rod (14) is threadedly connected to the fixing flange (4) and the connecting flange (10), and the lifting screw rod (14), the fixing flange (4) and the connecting flange (10) are made of steel materials.

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