Worm gear lead screw elevator convenient to position

Abstract

The utility model discloses a worm gear lead screw elevator convenient to position, and relates to the technical field of elevators. Comprising a machine body, a machine cover is installed on the top of the machine body through bolts, a trapezoidal lead screw is arranged in the machine body, a nut on the trapezoidal lead screw is located in the machine body, a driven worm gear is installed on the nut on the trapezoidal lead screw, a worm is installed in the machine body through a bearing, and the worm is in meshed connection with the driven worm gear; a controller is installed on the outer side of the machine body. According to the worm gear lead screw elevator convenient to position, the infrared distance measuring sensor installed on the elevator body is used for detecting the stroke of the lead screw elevator, the relative height of the top of a trapezoidal lead screw can be accurately measured, real-time height data are fed back to the controller, and the controller displays the obtained height data; a worker can accurately adjust the ascending or descending distance of the lead screw, and the height positioning accuracy of the elevator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a worm screw elevator convenient for positioning. Background Art

[0002] The worm screw elevator completes functions such as lifting, lowering, and propelling through the worm drive of the screw, and is a basic lifting component. It is widely used in various industries such as machinery, metallurgy, water conservancy, chemical industry, medical treatment, culture, and hygiene. It has the advantages of compact structure, small volume, light weight, convenient installation, flexible use, good reliability, high stability, and long service life. It can be directly driven by an electric motor or other power, or manually.

[0003] However, the existing manual worm screw elevator cannot accurately control the distance of the screw's lifting, lowering, and propelling. Workers often determine the distance of the screw's lifting, lowering, and propelling through experience and visual inspection, resulting in relatively large errors. Content of the Utility Model

[0004] The utility model provides a worm screw elevator convenient for positioning to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical solution: A worm screw elevator convenient for positioning, including a machine body. The top of the machine body is installed with a machine cover through bolts. A trapezoidal screw is arranged in the machine body, and the nut on the trapezoidal screw is located inside the machine body. The nut on the trapezoidal screw is installed with a driven worm wheel. A worm is installed in the machine body through bearings, and the worm is meshed and connected with the driven worm wheel. A hand wheel is installed at the input shaft end of the worm. A controller is installed on the outer side of the machine body. An infrared distance measuring sensor is installed at the bottom of the machine body, and the infrared distance measuring sensor is electrically connected with the controller. A protective cylinder is installed at the bottom of the machine body, and a strip-shaped hole is opened on the protective cylinder. The bottom end of the trapezoidal screw is located in the protective cylinder, and the bottom end of the trapezoidal screw is installed with an induction block through a bearing. One end of the induction block extends outwards from the strip-shaped hole.

[0006] Further, an upper guide sleeve is inlaid on the machine cover, and the upper part of the trapezoidal screw extends upwards from the upper guide sleeve.

[0007] Further, a lower guide sleeve is inlaid on the inner bottom of the machine body, and the lower part of the trapezoidal screw extends downwards from the lower guide sleeve.

[0008] Further, the protective cylinder is located below the lower guide sleeve, and an end cover is clamped at the bottom of the protective cylinder.

[0009] Further, both shaft ends of the worm extend outwards from the machine body, and the hand wheel is installed on one shaft end of the worm.

[0010] Furthermore, the infrared distance measurement sensor consists of an infrared emitter and an infrared receiver. The infrared receiver is located on the sensor, and the infrared emitter is installed on the induction block.

[0011] Compared with the prior art, the present utility model provides a worm and screw lift that is convenient for positioning, and has the following beneficial effects:

[0012] For the worm and screw lift that is convenient for positioning, the infrared distance measurement sensor installed on the machine body is used to detect the stroke of the screw lift, and can accurately measure the relative height of the top of the trapezoidal screw, and feed the real-time height data back to the controller. The controller displays the obtained height data, enabling the staff to accurately adjust the rising or falling distance of the screw, and increasing the accuracy of the height positioning of the lift. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a cross-sectional view of the present utility model;

[0015] Figure 3 is a side view of the present utility model.

[0016] In the figure: 1, machine body; 2, machine cover; 3, trapezoidal screw; 4, driven worm gear; 5, worm; 6, hand wheel; 7, controller; 8, infrared distance measurement sensor; 9, protective cylinder; 10, strip hole; 11, induction block; 12, upper guide sleeve; 13, lower guide sleeve; 14, end cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-3, the present utility model discloses a worm screw lift facilitating positioning, which comprises a body 1. The top of the body 1 is installed with a machine cover 2 through bolts. A trapezoidal screw rod 3 is arranged in the body 1, and the nut on the trapezoidal screw rod 3 is located inside the body 1. The nut on the trapezoidal screw rod 3 is installed with a driven worm wheel 4. A worm 5 is installed in the body 1 through bearings, and the worm 5 is meshed with the driven worm wheel 4. A hand wheel 6 is installed at the input shaft end of the worm 5. A controller 7 is installed on the outer side of the body 1. An infrared ranging sensor 8 is installed at the bottom of the body 1, and the infrared ranging sensor 8 is electrically connected with the controller 7. A protective cylinder 9 is installed at the bottom of the body 1, and a strip hole 10 is opened on the protective cylinder 9. The bottom end of the trapezoidal screw rod 3 is located in the protective cylinder 9, and an induction block 11 is installed at the bottom end of the trapezoidal screw rod 3 through a bearing. One end of the induction block 11 extends outwards from the strip hole 10. By means of the infrared ranging sensor 8 installed on the body 1, the stroke of the screw lift can be detected, the relative height of the top of the trapezoidal screw rod 3 can be accurately measured, and the real-time height data is fed back to the controller 7. The controller 7 displays the obtained height data, enabling the staff to accurately adjust the rising or falling distance of the screw rod and increasing the accuracy of the lift height positioning.

[0019] Specifically, an upper guide sleeve 12 is inlaid on the machine cover 2, and the upper part of the trapezoidal screw rod 3 extends upwards from the upper guide sleeve 12.

[0020] In this embodiment, the main functions of the upper guide sleeve 12 are guiding and supporting to reduce the swing and offset of the trapezoidal screw rod 3.

[0021] Specifically, a lower guide sleeve 13 is inlaid on the inner bottom of the body 1, and the lower part of the trapezoidal screw rod 3 extends downwards from the lower guide sleeve 13.

[0022] In this embodiment, the main functions of the lower guide sleeve 13 are guiding and supporting to reduce the swing and offset of the trapezoidal screw rod 3.

[0023] Specifically, the protective cylinder 9 is located below the lower guide sleeve 13, and an end cover 14 is clamped at the bottom of the protective cylinder 9.

[0024] In this embodiment, the protective cylinder 9 can effectively protect the screw rod and extend the service life.

[0025] Specifically, both shaft ends of the worm 5 extend outwards from the body 1, and the hand wheel 6 is installed on one shaft end of the worm 5.

[0026] In this embodiment, by rotating the hand wheel 6 to drive the worm 5 to rotate, the driven worm wheel 4 is driven to rotate, and then under the threaded connection of the nut and the screw rod of the trapezoidal screw rod 3, the rotational motion is converted into a linear motion.

[0027] Specifically, the infrared distance measuring sensor 8 is composed of an infrared emitter and an infrared receiver. The infrared receiver is located on the sensor, and the infrared emitter is installed on the induction block 11.

[0028] In this embodiment, the infrared emitter generates an infrared signal with a certain frequency and irradiates it onto the target object. After irradiation, part of the infrared rays are absorbed by the target object, and part are reflected back. The infrared receiver is located on the sensor and is used to receive the infrared signal reflected by the target object. By measuring the intensity of the received infrared rays, the distance between the target object and the sensor can be determined.

[0029] During use, the infrared distance measuring sensor 8 installed on the machine body 1 is used to detect the stroke of the screw jack, and the relative height of the top of the trapezoidal screw 3 can be accurately measured. The real-time height data is fed back to the controller 7, and the controller 7 displays the obtained height data, enabling the staff to accurately adjust the rising or falling distance of the screw, thereby increasing the accuracy of the height positioning of the jack.

[0030] In summary, for the worm screw jack that is convenient for positioning, the infrared distance measuring sensor 8 installed on the machine body 1 is used to detect the stroke of the screw jack, and the relative height of the top of the trapezoidal screw 3 can be accurately measured. The real-time height data is fed back to the controller 7, and the controller 7 displays the obtained height data, enabling the staff to accurately adjust the rising or falling distance of the screw, thereby increasing the accuracy of the height positioning of the jack.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A worm gear screw jack facilitating positioning, comprising a machine body (1), characterized in that: The top of the body (1) is installed with a machine cover (2) through bolts. A trapezoidal lead screw (3) is arranged in the body (1), and the nut on the trapezoidal lead screw (3) is located inside the body (1). The nut on the trapezoidal lead screw (3) is installed with a driven worm gear (4). A worm (5) is installed in the body (1) through bearings, and the worm (5) is meshed with the driven worm gear (4). A hand wheel (6) is installed at the input shaft end of the worm (5). A controller (7) is installed on the outside of the body (1). An infrared distance measuring sensor (8) is installed at the bottom of the body (1), and the infrared distance measuring sensor (8) is electrically connected to the controller (7). A protective cylinder (9) is installed at the bottom of the body (1), and a strip hole (10) is opened on the protective cylinder (9). The bottom end of the trapezoidal lead screw (3) is located in the protective cylinder (9), and an induction block (11) is installed at the bottom end of the trapezoidal lead screw (3) through a bearing. One end of the induction block (11) extends outwards from the strip hole (10).

2. The worm screw lift that is convenient for positioning according to claim 1, wherein: An upper guide sleeve (12) is inlaid on the machine cover (2), and the upper part of the trapezoidal lead screw (3) extends upwards from the upper guide sleeve (12).

3. The worm screw elevator convenient for positioning according to claim 1, characterized in that: A lower guide sleeve (13) is inlaid on the inner bottom of the body (1), and the lower part of the trapezoidal lead screw (3) extends downwards from the lower guide sleeve (13).

4. The worm screw lift for easy positioning according to claim 3, wherein: The protective cylinder (9) is located below the lower guide sleeve (13), and an end cover (14) is clamped at the bottom of the protective cylinder (9).

5. A worm screw lift facilitating positioning according to claim 1, characterized in that: Both shaft ends of the worm (5) extend outwards from the body (1), and the hand wheel (6) is installed on one shaft end of the worm (5).

6. The worm screw elevator for easy positioning according to claim 1, characterized in that: The infrared distance measuring sensor (8) consists of an infrared emitter and an infrared receiver. The infrared receiver is located on the sensor, and the infrared emitter is installed on the induction block (11).

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