Linear lifting module with high bearing capacity
By adopting a design in which both the base and the lifting platform are equipped with sliders and slide rails in the linear lifting module, combined with torque motor and encoder control, the shortcomings of traditional modules in load-bearing and torque are solved, stability and balance are achieved, and the needs of lifting heavy objects are met.
Patent Information
- Application Number
- CN202422185175.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-09-05
AI Technical Summary
Traditional linear lifting modules are insufficient in terms of load-bearing capacity and torque, which causes the screw to tilt and the slider and rail to be squeezed and deformed when heavy objects are lifted, and cannot meet the needs of heavy object lifting.
The base and lifting platform are both equipped with sliders and rails, and are driven by a torque motor, combined with an encoder and magnetic grid for precise control to ensure the vertical posture of the screw and sufficient torque. The bracket structure is designed to balance the force, and is equipped with buffer blocks and bearings to improve stability and smoothness.
It achieves strong load-bearing capacity while maintaining stability and balance in linear lifting and lowering movements, meets the torque requirements for lifting heavy objects, reduces parts replacement costs and improves equipment applicability.
Smart Images
Figure CN223409300U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a linear lifting module, in particular to a linear lifting module with strong load-bearing capacity. Background Art
[0002] Linear lifting modules are widely used in the field of mechanical equipment, mainly used to control the linear lifting and lowering movement of other components. Traditional linear lifting modules usually use a servo motor to drive a vertically arranged screw to rotate, thereby driving the screw nut screwed to the screw to move linearly, and then driving the lifting plate fixedly connected to the screw nut to move linearly, and the lifting plate is used to be fixedly connected to other components. In order to make the movement of the lifting plate more stable, the traditional linear lifting module usually also includes a number of sliders and a number of vertically arranged slide rails. The slider is set on one side of the lifting plate, and the slide rail is set on the base of the linear lifting module. The cooperation between the slider and the slide rail is used to guide the movement of the lifting plate.
[0003] However, for equipment that needs to lift heavy objects, such as lithium battery stacking robots, the aforementioned linear lift module with a slider and rail on one side suffers from unbalanced forces on both sides. This means the excessive weight of the object can cause the lead screw to tilt, squeezing and deforming the slider and rail, hindering lifting. Furthermore, the servo motor's output torque is too low to meet the requirements of heavy lifting. Utility Model Content
[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to design a linear lifting module with strong load-bearing capacity, which can ensure the vertical posture of the screw rod during the linear lifting movement, and at the same time provide sufficient torque to meet the needs of lifting and moving heavy objects.
[0005] To achieve the above-mentioned purpose, the utility model provides a linear lifting module with strong load-bearing capacity, including: a base, a screw nut, a vertically arranged screw and a lifting platform, the screw nut is threadedly connected to the screw; the base includes: a seat body and at least two sliders, the sliders are fixedly connected to the seat body; the lifting platform includes: a bracket and at least two vertically arranged slide rails, the screw and the slide rails are fixedly connected to the bracket; the linear lifting module also includes: a torque motor, the torque motor is arranged on the seat body, at least two sliders are respectively located on the left and right sides of the seat body, and the two slide rails are respectively slidably matched with the two sliders located on the left and right sides of the seat body.
[0006] Furthermore, the base and the lifting platform have the same dimensions in the front-to-back direction. Therefore, the front-to-back space of the linear lifting module can be avoided from being occupied, making the linear lifting module applicable to equipment with reduced front-to-back space.
[0007] Furthermore, the bracket is provided with a horizontal support arm and two vertical support arms. The left and right ends of the horizontal support arm are respectively fixedly connected to the two vertical support arms. The vertical support arm is provided with at least one slide rail. The horizontal support arm is located directly above the seat body, and the two vertical support arms are respectively located on the left and right sides of the seat body. The screw rod is fixedly connected to the horizontal support arm. Among them, the entire bracket is in the shape of a "冖". The above structure makes the seat body, the torque motor, the screw nut and the screw rod all located in the middle position of the entire bracket. During operation, the screw rod applies force to the center of gravity position of the bracket, making the force on the entire bracket more balanced.
[0008] Furthermore, the lifting platform further includes: a buckle and a screw. The buckle is fixedly connected to the horizontal support arm. The screw head of the screw engages with the buckle. A screw hole is provided on the upper surface of the screw rod. The screw is screwed into the screw hole of the screw rod. Among them, the above structure makes the screw rod and the bracket detachably arranged, which can facilitate the user to repair individual parts and also reduce the cost of replacing parts.
[0009] Furthermore, the base further includes: a buffer cushion block. The buffer cushion block is fixedly connected to the seat body and is located between the seat body and the horizontal support arm. Among them, setting the buffer cushion block can play a buffering role in the descent of the bracket, avoiding damage to the seat body caused by too fast descent speed.
[0010] Furthermore, there are two buffer cushion blocks, and the two buffer cushion blocks are separated left and right. Among them, when the bracket is at the lowest point, the two buffer cushion blocks separated left and right can support the bracket at two points, avoiding the bracket from tilting due to unbalanced force.
[0011] Furthermore, the linear lifting module further includes: an encoder and a magnetic grating. The encoder is arranged on the seat body, the magnetic grating is fixedly connected to one of the vertical support arms, and the encoder and the magnetic grating are directly opposite left and right. Among them, the cooperation of the encoder and the magnetic grating can detect the position of the bracket, so as to accurately control the lifting height.
[0012] Furthermore, the base further includes: a bearing. The bearing is located between the rotor of the torque motor and the seat body. Among them, setting the bearing can make the rotation of the rotor of the torque motor more smooth.
[0013] After adopting the above technical solution, the beneficial effects are:
[0014] 1. Since the linear lifting module of the present utility model is provided with sliders on both the left and right sides of the seat body, and the two sliders are respectively slidably mated with the two vertical guide rails of the lifting platform, it can guide the movement of the lifting platform on both sides at the same time, and can avoid the screw rod from tilting due to unbalanced force even when bearing heavy objects, thus ensuring the stability of the linear lifting movement.
[0015] 2. Since the linear lifting module of the present invention adopts a torque motor, the torque motor has a slow rotation speed and a large torque, and thus can meet the torque requirements for lifting heavy objects. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the linear lifting module involved in the present utility model;
[0017] Figure 2 It is a vertical cross-sectional view of the linear lifting module involved in the present utility model.
[0018] The accompanying drawings are marked as follows: 1. base; 11. base body; 12. slider; 13. bearing; 14. buffer pad; 2. torque motor; 3. screw nut; 4. screw; 5. lifting platform; 51. bracket; 511. horizontal support arm; 512. longitudinal support arm; 52. slide rail; 53. buckle; 54. screw; 6. encoder; 7. magnetic grid. DETAILED DESCRIPTION
[0019] The technical solution of the present invention is further described below by way of embodiments:
[0020] The utility model provides a linear lifting module with strong load-bearing capacity, such as Figure 1 As shown, the linear lifting module includes: a base 1, a torque motor 2, a lead screw nut 3, a vertically arranged lead screw 4, a lifting platform 5, a linear encoder 6, and a magnetic grid 7. The torque motor 2 and the encoder 6 are both arranged on the base 1. The rotor of the torque motor 2 is fixedly connected to the lead screw nut 3, which is threadedly connected to the lead screw 4. The lead screw 4 and the magnetic grid 7 are both fixedly connected to the lifting platform 5, and the encoder 6 is directly opposite the magnetic grid 7. During operation, the torque motor 2 drives the lead screw nut 3 to rotate, thereby causing the lead screw 4 to move linearly, which in turn drives the lifting platform 5 to move linearly. The lifting platform 5 is used to be fixedly connected to other components of the equipment to achieve linear lifting and lowering of other components.
[0021] As a preferred solution, the base 1 and the lifting platform 5 have the same dimensions along the front-to-back direction.
[0022] Specifically, the base 1 comprises a base 11 and at least two sliders 12, which are fixedly connected to the base 11 and located on the left and right sides of the base 11. The torque motor 2 and encoder 6 are both mounted on the base 11. The lifting platform 5 comprises a bracket 51 and at least two vertically arranged rails 52. The lead screw 4, magnetic grid 7, and rails 51 are all fixedly connected to the bracket 51. The two rails 52 slidably engage the two sliders 12 located on the left and right sides of the base 11. During operation, the bracket 51 is driven by the torque motor 2 to move linearly upward and downward, and the rails 52 simultaneously move linearly upward and downward relative to the sliders 12.
[0023] More specifically, if Figure 2 As shown, the bracket 51 is provided with a horizontal arm 511 and two vertical arms 512. The left and right ends of the horizontal arm 511 are fixedly connected to the two vertical arms 512 respectively. The vertical arms 512 are provided with at least one slide rail 52. The horizontal arm 511 is located directly above the base body 11. The two vertical arms 512 are located on the left and right sides of the base body 11 respectively. The screw rod 4 is fixedly connected to the horizontal arm 511. The magnetic grid 7 is fixedly connected to one of the vertical arms 512. The encoder 6 is directly opposite to the magnetic grid 7 on the left and right.
[0024] In this embodiment, there are two sliders 12 and two sliders 12. In other embodiments, there can be more than three sliders 12 and two sliders 12, as long as there are at least two sliders 12 located on the left and right sides of the base 11 and slidingly matched with the two slide rails 52 respectively.
[0025] More specifically, the lifting platform 5 further includes a buckle 53 and a screw 54. The buckle 53 is fixedly connected to the horizontal support arm 511. The screw head of the screw 54 engages with the buckle 53. The upper surface of the screw rod 4 is provided with a screw hole, and the screw 54 is screwed into the screw hole of the screw rod 4. In this embodiment, the horizontal support arm 511 and the screw rod 4 are fixed together by the buckle 53 and the screw 54.
[0026] More specifically, the base 1 further includes a bearing 13, which is located between the rotor of the torque motor 2 and the base 11. During operation, the inner ring of the bearing 13 rotates as the rotor rotates.
[0027] More specifically, the base 1 further comprises a buffer block 14, which is fixedly connected to the base body 11 and is located between the base body 11 and the transverse support arm 511. When the transverse support arm 511 is at the lowest point, it contacts the buffer block 14.
[0028] In this embodiment, there are two buffer pads 14, which are separated left and right. In other embodiments, there may be three or more buffer pads 14.
Claims
1. A linear lifting module with strong load-bearing capacity, comprising: A base, a screw nut, a vertically arranged screw and a lifting platform, wherein the screw nut is threadedly connected to the screw; The base includes: a base body and at least two sliders, and the sliders are fixedly connected to the base body; the lifting platform includes: a bracket and at least two vertically arranged slide rails, and the screw rod and the slide rails are fixedly connected to the bracket; it is characterized in that: the linear lifting module also includes: a torque motor, and the torque motor is arranged on the base body, at least two sliders are respectively located on the left and right sides of the base body, and the two slide rails are respectively slidably matched with the two sliders located on the left and right sides of the base body.
2. The linear lifting module with strong load-bearing capacity according to claim 1, characterized in that: The base and the lifting platform have the same dimensions along the front-to-back direction.
3. The linear lifting module with strong load-bearing capacity according to claim 1, characterized in that: The bracket is provided with a horizontal support arm and two longitudinal support arms. The left and right ends of the horizontal support arm are fixedly connected to the two longitudinal support arms respectively. The longitudinal support arms are provided with at least one slide rail. The horizontal support arm is located directly above the base body. The two longitudinal support arms are respectively located on the left and right sides of the base body. The screw rod is fixedly connected to the horizontal support arm.
4. The linear lifting module with strong load-bearing capacity according to claim 3, characterized in that: The lifting platform further comprises: a buckle and a screw, wherein the buckle is fixedly connected to the horizontal support arm, the screw head of the screw is engaged with the buckle, the upper surface of the screw rod is provided with a screw hole, and the screw is screwed into the screw hole of the screw rod.
5. The linear lifting module with strong load-bearing capacity according to claim 3, characterized in that: The base further comprises a buffer pad, which is fixedly connected to the base body and located between the base body and the transverse support arm.
6. The linear lifting module with strong load-bearing capacity according to claim 5, characterized in that: There are two buffer pads, which are separated into left and right parts.
7. The linear lifting module with strong load-bearing capacity according to claim 3, characterized in that: The linear lifting module further includes: an encoder and a magnetic grid. The encoder is arranged on the base body. The magnetic grid is fixedly connected to one of the longitudinal arms. The encoder and the magnetic grid are opposite to each other on the left and right.
8. The linear lifting module with strong load-bearing capacity according to claim 1, characterized in that: The base further comprises a bearing, which is located between the rotor of the torque motor and the base body.