Lifting device

Abstract

The utility model discloses a lifting device which comprises a connecting structure, a first driving piece, a driven assembly, a driving structure, a stop structure and a control unit, the driving structure comprises a first bevel gear and a second bevel gear, one end of the driven assembly is connected with the first bevel gear, and an output shaft of the first driving piece is connected with the second bevel gear. An output shaft of the first bevel gear is perpendicular to an output shaft of the second bevel gear, the first bevel gear is meshed with the second bevel gear, the end, away from the first bevel gear, of the driven assembly is connected with the connecting structure, and the stop structure is connected with the first driving piece so as to control driving of the first driving piece. The control unit is electrically connected with the first driving piece and the stop structure. The bevel gear combination is used for replacing an original worm and gear mechanism, better torque output characteristics can be obtained while the compact structure is kept, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley lifting, in particular to a lifting device. Background Art

[0002] The SCP line is the only vertical electroplating equipment for graphics in the mSAP circuit board manufacturing process. The lift motor, mounted on the intelligent trolley unique to this production line, controls the lift of the trolley frame, allowing it to carry the PCBs to be plated into the various process tanks for the redox reaction (i.e., electroplating production). The current lift motor uses an integral PEEK gear, which operates on the worm gear principle. This gear torque is insufficient, and the spur gears in the gearbox are not in full contact with the worm gear, resulting in a small contact area and prone to wear. This can lead to slipping of the lift motor during operation, shortening its service life. This can easily cause the trolley lift motor to lose its ability to lift, causing the frame to drop. This can cause production line downtime due to the trolley's abnormal lift, resulting in substandard production, increased scrap rates, and wasted production costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the lifting motor used is an integral PEEK gear, the gear torque is insufficient, the gear box spur gear and the worm gear are not in complete contact, the contact area is small, the gear box spur gear is easy to wear, the lifting motor is easy to slip during operation, the service life is short, and it is easy to cause the trolley lifting motor to be unable to lift, causing the frame to fall down, causing the production line to stop due to the abnormal lifting problem of the trolley, resulting in substandard production, increased scrap rate, and waste of production costs.

[0004] In order to solve the above technical problems, the utility model provides a lifting device, including a connecting structure, a first driving member, a driven component, a driving structure, a stopping structure and a control unit. The driving structure includes a first bevel gear and a second bevel gear. One end of the driven component is connected to the first bevel gear, and the output shaft of the first driving member is connected to the second bevel gear. The output shaft of the first bevel gear and the output shaft of the second bevel gear are vertically arranged, and the first bevel gear is meshed with the second bevel gear. The end of the driven component away from the first bevel gear is connected to the connecting structure, and the stopping structure is connected to the first driving member to control the drive of the first driving member. The control unit is electrically connected to the first driving member and the stopping structure.

[0005] Furthermore, the connection structure includes a cover body, a spring fixing part, a spring part and a bearing part. The cover body is connected to the driven assembly through the bearing part. The cover body encloses a receiving cavity for placing the spring part. One end of the spring fixing part is connected to the cover body, and several spring fixing parts are located in the receiving cavity. One end of the spring part is connected to the spring fixing part, and the other end is wrapped around the spring fixing part and connected to the cover body.

[0006] Furthermore, the cover body includes a baffle, a first end cover, a second end cover and a gasket, one end of the first end cover has a limit piece, one end cover of the first end cover is arranged on the second end cover, and is engaged with the second end cover through the limit piece, and there is a gap between the first end cover and the second end cover for the lifting belt to pass through, the baffle is connected to the other end of the first end cover, one end of the spring fixing part passes through the first end cover and is connected to the baffle, a gasket is provided between the baffle and the spring fixing part, and the second end cover is connected to the bearing part.

[0007] Furthermore, the second end cover has a first slot for engaging with the other end of the spring member.

[0008] Furthermore, the spring fixing member has a second slot for engaging with one end of the spring member.

[0009] Furthermore, the bearing component includes a pressing plate and a bearing, the bearing is connected to the cover body, the pressing plate is arranged on a side of the bearing facing the cover body, and the driven component passes through the bearing and is connected to the pressing plate.

[0010] Furthermore, the driven component includes a connecting shaft, a planetary drive structure, a gear box and a first flange, the first flange is arranged between the bearing member and the gear box, the planetary drive structure is connected to the bearing member through the connecting shaft, the connecting shaft and the planetary drive structure are arranged in the gear box, and the end of the planetary drive structure facing away from the connecting shaft is connected to the first bevel gear.

[0011] Furthermore, the first driving member is a motor.

[0012] Furthermore, the first driving member includes a driving body and a rotating member, the driving body is connected to the rotating member, the stopping structure includes a coil, a brake pad base plate, a brake pad, an elastic member, a brake pad top cover and a fixing column, the brake pad base plate and the brake pad top cover are connected via the fixing column, and the brake pad is arranged between the brake pad base plate and the brake pad top cover, and the coil and the brake pad base plate are connected via the elastic member; wherein,

[0013] When the coil is not energized, the coil is separated from the brake pad base plate, and the rotating member is located in the brake pad; when the coil is energized, the coil adsorbs the brake pad base plate, and the brake pad is separated from the rotating member.

[0014] Furthermore, it includes a first bracket and a second bracket, the first bracket is connected to the driven component, the second bracket is connected to the first driving member, and the control unit is installed on the second bracket.

[0015] Compared with the prior art, the lifting device of the present invention has the following advantages:

[0016] The embodiment of the utility model uses a bevel gear combination to replace the original worm gear mechanism, which can obtain better torque output characteristics while maintaining a compact structure. Compared with the worm gear system, the meshing between the bevel gears is more direct, making the contact between them more uniform and extensive, reducing local stress concentration, delaying the wear rate, and avoiding the lifting device slipping during operation, causing the frame to fall down and the production line to stop due to abnormal lifting and lowering problems of the trolley. It not only improves the service life, but also reduces the scrap rate and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a lifting device provided by an embodiment of the present utility model;

[0018] Figure 2 The embodiment of the present invention provides Figure 1 Cross-sectional view in the AA direction;

[0019] Figure 3 It is a structural schematic diagram of the stop structure provided by an embodiment of the utility model;

[0020] Figure 4 This is a schematic structural diagram of a first end cover provided by an embodiment of the present utility model;

[0021] Figure 5 This is a schematic structural diagram of the second end cover and the spring fixing member provided in an embodiment of the present utility model;

[0022] In the figure, 1. connecting structure; 11. cover body; 111. baffle; 112. first end cover; 1121. limit member; 113. second end cover; 1131. first slot; 114. gasket; 12. spring fixing member; 121. second slot; 13. spring member; 14. bearing member; 141. pressing plate; 142. bearing; 2. first driving member; 3. driven assembly; 31. connecting shaft; 32. planetary driving structure; 33. gear box; 34. first flange; 4. driving structure; 41. first bevel gear; 42. second bevel gear; 5. stopping structure; 51. coil; 52. brake pad bottom plate; 53. brake pad; 54. elastic member; 55. brake pad top cover; 56. fixing column; 6. control unit; 7. first bracket; 8. second bracket. DETAILED DESCRIPTION

[0023] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] like Figure 1 and Figure 2 As shown, the utility model provides a lifting device, including a connecting structure 1, a first driving member 2, a driven component 3, a driving structure 4, a stopping structure 5 and a control unit 6, the driving structure 4 includes a first bevel gear 41 and a second bevel gear 42, one end of the driven component 3 is connected to the first bevel gear 41, the output shaft of the first driving member 2 is connected to the second bevel gear 42, the output shaft of the first bevel gear 41 and the output shaft of the second bevel gear 42 are vertically arranged, and the first bevel gear 41 is meshed with the second bevel gear 42, the end of the driven component 3 away from the first bevel gear 41 is connected to the connecting structure 1, the stopping structure 5 is connected to the first driving member 2 to control the drive of the first driving member 2, and the control unit 6 is electrically connected to the first driving member 2 and the stopping structure 5.

[0025] Based on the above structure, when the first drive member 2 is activated, its rotational motion is first transmitted to the first bevel gear 41. Because the first bevel gear 41 meshes with the second bevel gear 42 at a certain angle (typically 90 degrees), the horizontal rotation generated by the motor is converted into vertical rotation. The power is transmitted from the first bevel gear 41 to the second bevel gear 42, achieving a change in the direction of the power. The second bevel gear 42 then drives the driven assembly 3, which, via the connecting structure 1, moves the target object up and down. In addition, the stop structure 5 of this embodiment can inhibit the operation of the first drive member 2 in the non-operating state, preventing accidental movement due to external factors.

[0026] This embodiment uses a bevel gear combination to replace the original worm gear mechanism, which can achieve better torque output characteristics while maintaining a compact structure. Compared with the worm gear system, the meshing between the bevel gears is more direct, making the contact between them more uniform and extensive, reducing local stress concentration, slowing down the wear rate, and avoiding the lifting device slipping during operation, causing the frame to fall down and the production line to stop due to abnormal lifting and lowering problems of the trolley. This not only improves the service life, but also reduces the scrap rate and production costs.

[0027] It should be noted that the first bevel gear 41 and the second bevel gear 42 are made of steel, so that the sports car can still operate stably in an environment with a lot of acidic gas and high temperature, thereby making production more stable, reducing the failure rate and the scrapping of production boards, and improving the product yield.

[0028] Furthermore, the connecting structure 1 includes a cover body 11, a spring fixing member 12, a spring member 13 and a bearing member 14. The cover body 11 is connected to the driven assembly 3 through the bearing member 14. The cover body 11 encloses a receiving cavity for placing the spring member 13. One end of the spring fixing member 12 is connected to the cover body 11, and several spring fixing members 12 are located in the receiving cavity. One end of the spring member 13 is connected to the spring fixing member 12, and the other end is wrapped around the side of the spring fixing member 12 and connected to the cover body 11.

[0029] The cover body 11 is connected to the driven component 3 through the bearing member 14, so that the cover body 11 can rotate with the bearing member 14 without interfering with the movement of the driven component 3, and the spring fixing member 12 is fixed in the cover body 11, providing a stable anchor point for the spring member 13, so that the spring member 13 can function effectively. When the lifting belt needs to be tensioned, the spring member 13 is stretched, generating an inward tension, thereby tightening the lifting belt. The above-mentioned structure can prevent the belt from loosening. As the use time increases, the belt may undergo a certain degree of stretching. The spring member 13 can automatically compensate for this stretching and maintain appropriate tension. During the lifting process, if the belt is too loose, it may cause slipping or tooth jumping, affecting the positioning accuracy; and appropriate tension can ensure the accuracy and reliability of the transmission.

[0030] See also Figure 4The cover body 11 includes a baffle 111, a first end cover 112, a second end cover 113 and a gasket 114. One end of the first end cover 112 has a limiter 1121. One end of the first end cover 112 is covered on the second end cover 113 and is engaged with the second end cover 113 through the limiter 1121. There is a gap between the first end cover 112 and the second end cover 113 for the lifting belt to pass through. The baffle 111 is connected to the other end of the first end cover 112. One end of the spring fixing member 12 passes through the first end cover 112 and is connected to the baffle 111. A gasket 114 is provided between the baffle 111 and the spring fixing member 12. The second end cover 113 is connected to the bearing member 14.

[0031] When the first end cover 112 is placed over the second end cover 113, the stopper 1121 and the end surface of the second end cover 113 engage with each other, thereby achieving a tight fit between the two and ensuring that their relative position remains fixed. In addition, a certain gap is left between the first end cover 112 and the second end cover 113, which is just enough to allow the lifting belt to pass through, ensuring that the lifting belt can slide smoothly and unhindered within the cover body 11. It can be understood that the baffle 111 not only serves as a seal, but also provides a stable support point for the spring fixing member 12. A gasket 114 is provided between the baffle 111 and the spring fixing member 12 to prevent the lifting lubricant from splashing out.

[0032] See also Figure 5 The second end cap 113 has a first slot 1131 for engaging with the other end of the spring member 13. When the other end of the spring member 13 is inserted into the first slot 1131, it is secured therein. This ensures that the spring member 13 is firmly positioned within the housing 11 and prevents it from easily falling out. When the spring member 13 is stretched or compressed, it exerts a corresponding tension within the first slot 1131. This tension is transmitted through the spring member 13 to the entire connecting structure 1, thereby maintaining the tension of the lifting belt.

[0033] Furthermore, the spring fixing member 12 has a second slot 121 for engaging with one end of the spring member 13. When one end of the spring member 13 is inserted into the second slot 121, it is fixed therein by means of a snap connection, ensuring that the position of the spring member 13 on the spring fixing member 12 is fixed and not easily loosened. Since one end of the spring member 13 is fixed to the spring fixing member 12 through the second slot 121, and the other end is fixed in the first slot 1131 of the second end cover 113, the spring member 13 is firmly fixed at both ends. When stretched or compressed, it can provide stable tension, which is transmitted to the entire connecting structure 1 through the spring member 13, maintaining the tension of the lifting belt to assist in the lifting and lowering of the intelligent trolley frame.

[0034] Furthermore, the bearing member 14 includes a pressing plate 141 and a bearing 142. The bearing 142 is connected to the cover body 11 so that the bearing 142 can move together with the cover body 11. The pressing plate 141 is arranged on the side of the bearing 142 facing the cover body 11, and the driven component 3 is connected to the pressing plate 141 through the bearing 142, so that the bearing 142 can rotate freely under the guidance of the driven component 3 while maintaining connection with the cover body 11.

[0035] Furthermore, the driven assembly 3 includes a connecting shaft 31, a planetary drive structure 32, a gear box 33, and a first flange 34. The first flange 34 is provided between the bearing member 14 and the gear box 33 to ensure that their relative position is fixed and prevent loosening or leakage. The planetary drive structure 32 is connected to the bearing member 14 via the connecting shaft 31 to transmit the rotational motion from the planetary drive structure 32 to the bearing member 14. The connecting shaft 31 and the planetary drive structure 32 are arranged in the gear box 33, and the gear box 33 acts as a seal to prevent dust and impurities from entering the gear system. The end of the planetary drive structure 32 facing away from the connecting shaft 31 is connected to the first bevel gear 41. The planetary drive structure 32 of this embodiment can provide a high reduction ratio and high torque output, which helps to improve the intelligent dismounting framework.

[0036] See also Figure 3 The first driving member 2 is a motor, and the first driving member 2 includes a driving body and a rotating member, and the driving body is connected to the rotating member. The stopping structure 5 includes a coil 51, a brake pad base plate 52, a brake pad 53, an elastic member 54, a brake pad top cover 55 and a fixing column 56. The brake pad base plate 52 and the brake pad top cover 55 are connected by the fixing column 56, and the brake pad 53 is arranged between the brake pad base plate 52 and the brake pad top cover 55. The coil 51 and the brake pad base plate 52 are connected by the elastic member 54; wherein, when the coil 51 is not energized, the coil 51 is separated from the brake pad base plate 52, and the rotating member is located in the brake pad 53; when the coil 51 is energized, the coil 51 adsorbs the brake pad base plate 52, and the brake pad 53 is separated from the rotating member.

[0037] Based on the above structure, the stopping structure 5 of this embodiment has two states, one of which is the de-energized state: when the coil 51 is not energized, there is no electromagnetic attraction between the coil 51 and the brake pad base plate 52. At this time, the elastic member 54 (spring) presses against the brake pad base plate 52 to prevent the first driving member 2 from sliding down due to the load, and enables the brake pad 53 to fix the rotating member, thereby preventing the rotation of the rotating member. In this state, the motor is in a stationary state and the rotating member cannot rotate freely. The other is the energized state: when the coil 51 is energized, the coil 51 generates an electromagnetic field to attract the brake pad base plate 52. After the brake pad base plate 52 is attracted, it overcomes the elastic force of the elastic member 54, causing the brake pad 53 to separate from the rotating member. At this time, the rotating member is no longer subject to the braking force of the brake pad 53 and can rotate freely. The driving body of the motor starts to work, and transmits the rotational motion to the external load through the rotating member.

[0038] In this embodiment, the first drive element 2 (motor) provides power through its drive body and rotating element, while the stop structure 5 achieves rapid braking and release through electromagnetically controlled brake pads 53, improving system safety, achieving rapid response, and reducing wear, thereby improving the reliability and operating efficiency of the entire system. It should be noted that the first drive element 2 is preferably a three-phase brushless DC motor with high output torque, thereby greatly reducing the problem of the trolley going offline due to the motor's inability to lift. The three-phase brushless DC motor uses the above-mentioned external brake structure, which does not generate carbon dust, thereby reducing the risk of short circuits and burns within the motor.

[0039] Furthermore, it also includes a first bracket 7 and a second bracket 8. The first bracket 7 is connected to the driven component 3 to ensure that the driven component 3 can maintain stable support when installed on an external structure. The second bracket 8 is connected to the first driving member 2, and the control unit 6 is installed on the second bracket 8.

[0040] Based on the above structure, the first bracket 7 and the second bracket 8 provide rigid support for the driven component 3 and the motor respectively, ensuring that they will not be displaced or loosened due to vibration or external force during operation.

[0041] To sum up, the embodiment of the utility model provides a lifting device, which uses a bevel gear combination to replace the original worm gear mechanism, which can obtain better torque output characteristics while maintaining a compact structure. Compared with the worm gear system, the meshing between the bevel gears is more direct, making the contact between them more uniform and extensive, reducing local stress concentration, slowing down the wear rate, and avoiding the lifting device slipping during operation, causing the frame to fall down and the production line to stop due to abnormal lifting problems of the trolley. It not only improves the service life, but also reduces the scrap rate and production costs.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A lifting device, characterized in that: It includes a connecting structure, a first driving member, a driven component, a driving structure, a stopping structure and a control unit. The driving structure includes a first bevel gear and a second bevel gear. One end of the driven component is connected to the first bevel gear, the output shaft of the first driving member is connected to the second bevel gear, the output shaft of the first bevel gear and the output shaft of the second bevel gear are arranged vertically, and the first bevel gear is meshed with the second bevel gear. The end of the driven component facing away from the first bevel gear is connected to the connecting structure, the stopping structure is connected to the first driving member to control the driving of the first driving member, and the control unit is electrically connected to the first driving member and the stopping structure.

2. The lifting device according to claim 1, characterized in that: The connecting structure includes a cover body, a spring fixing part, a spring part and a bearing part. The cover body is connected to the driven assembly through the bearing part. The cover body encloses a receiving cavity for placing the spring part. One end of the spring fixing part is connected to the cover body, and several spring fixing parts are located in the receiving cavity. One end of the spring part is connected to the spring fixing part, and the other end is wrapped around the spring fixing part and connected to the cover body.

3. The lifting device according to claim 2, characterized in that: The cover body includes a baffle, a first end cover, a second end cover and a gasket. One end of the first end cover has a limit piece. One end cover of the first end cover is arranged on the second end cover and is engaged with the second end cover through the limit piece. There is a gap between the first end cover and the second end cover for the lifting belt to pass through. The baffle is connected to the other end of the first end cover. One end of the spring fixing piece passes through the first end cover and is connected to the baffle. A gasket is provided between the baffle and the spring fixing piece. The second end cover is connected to the bearing piece.

4. The lifting device according to claim 3, characterized in that: The second end cover has a first clamping groove for clamping with the other end of the spring member.

5. The lifting device according to claim 2, characterized in that: The spring fixing member has a second clamping groove for clamping with one end of the spring member.

6. The lifting device according to claim 2, characterized in that: The bearing component includes a pressing plate and a bearing. The bearing is connected to the cover body. The pressing plate is arranged on a side of the bearing facing the cover body, and the driven component passes through the bearing and is connected to the pressing plate.

7. The lifting device according to claim 2, characterized in that: The driven component includes a connecting shaft, a planetary drive structure, a gear box and a first flange. The first flange is arranged between the bearing member and the gear box. The planetary drive structure is connected to the bearing member through the connecting shaft. The connecting shaft and the planetary drive structure are arranged in the gear box. The end of the planetary drive structure facing away from the connecting shaft is connected to the first bevel gear.

8. The lifting device according to claim 1, characterized in that: The first driving component is a motor.

9. The lifting device according to claim 1 or 8, characterized in that: The first driving member includes a driving body and a rotating member, the driving body is connected to the rotating member, the stopping structure includes a coil, a brake pad base plate, a brake pad, an elastic member, a brake pad top cover and a fixing column, the brake pad base plate and the brake pad top cover are connected via the fixing column, and the brake pad is arranged between the brake pad base plate and the brake pad top cover, and the coil and the brake pad base plate are connected via the elastic member; wherein, When the coil is not energized, the coil is separated from the brake pad base plate, and the rotating member is located in the brake pad; when the coil is energized, the coil adsorbs the brake pad base plate, and the brake pad is separated from the rotating member.

10. The lifting device according to claim 1, wherein: It also includes a first bracket and a second bracket, the first bracket is connected to the driven component, the second bracket is connected to the first driving member, and the control unit is installed on the second bracket.

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