Z-axis anti-falling mechanism for heavy-load truss
By introducing a worm gear reducer and gear meshing structure and cylinder buffer into the heavy-duty truss, the problem of insufficient reliability of the Z-bearing shaft relying solely on the motor brake is solved, achieving a highly reliable anti-fall effect and stable movement.
Patent Information
- Application Number
- CN202520445530.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-14
AI Technical Summary
The reliability of relying solely on the motor's brake for braking the Z-bearing shaft of a heavy-duty truss is weak, which can easily lead to safety hazards.
It adopts a worm gear reducer and gear meshing structure, combined with cylinder buffer and Omron switch control to form a dual anti-fall mechanism, ensuring that the Z-bearing shaft does not fall when the motor stops, and is buffered and decelerated by the cylinder.
It improves the anti-fall reliability of the Z-bearing shaft, reduces the occurrence of safety accidents, and provides stable and cushioned motion performance.
Smart Images
Figure CN223766018U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of heavy-duty trusses, in particular to a Z-axis anti-falling mechanism of a heavy-duty truss. BACKGROUND
[0002] The heavy-duty truss is a truss structure capable of bearing heavy loads, which is usually made of high-strength materials such as steel or aluminum alloy. The design feature of such a truss is its open frame structure, which not only reduces its own weight but also provides superior ventilation. The heavy-duty truss is often used in heavy material handling, assembly and processing tasks that require strong carrying capacity and stable movement performance.
[0003] The heavy-duty truss has a Z-axis structure, which realizes the upward and downward transportation of materials. The Z-axis structure of the heavy-duty truss usually includes a Z-bearing shaft and a motor. The motor is fixedly arranged, and the Z-bearing shaft is in sliding cooperation with other structures to realize upward and downward sliding. The Z-bearing shaft is provided with a vertical rack, and the motor is provided with a gear. The gear is engaged with the rack, and the upward and downward movement of the rack is driven by the rotation of the gear driven by the motor to realize the upward and downward sliding of the Z-bearing shaft to transport the materials. The Z-bearing shaft needs to bear its own weight and the weight of the materials, so it is heavy and easy to fall, which may cause safety hazards. Therefore, in the related technology, a brake is usually added to the motor to prevent falling. In the related technology, the brake is simply relied on to brake, and when the brake fails, the Z-bearing shaft will still fall, which may cause safety hazards, and the reliability is weak. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the problem that the Z-bearing shaft of the heavy-duty truss simply relies on the brake of the motor to brake and prevent falling, and the reliability is weak, which may cause safety hazards, the application provides a Z-axis anti-falling mechanism of a heavy-duty truss.
[0005] A Z-axis anti-falling mechanism of a heavy-duty truss, comprising a motor, a worm gear reducer and a Z-bearing shaft. The motor is connected with the input end of the worm gear reducer, and the motor is provided with a brake. The output end of the worm gear reducer is provided with a gear. The Z-bearing shaft is provided with a rack extending in the axial direction thereof. The gear is engaged with the rack.
[0006] Preferably, a gas cylinder is further included, which is parallel to the Z-bearing shaft, and the extension shaft of the gas cylinder is connected with the Z-bearing shaft.
[0007] Preferably, the back surface of the Z-bearing shaft is provided with a slide rail extending in the axial direction thereof. A sliding block is slidingly connected on the slide rail, and a mounting seat is connected on the sliding block.
[0008] Preferably, the back surface of the Z-bearing shaft is provided with abutting seats at both ends thereof. The mounting seat is between the two abutting seats, and the two abutting seats are within the length range of the slide rail.
[0009] Preferably, the two abutting seats are provided with rubber blocks on the opposite sides.
[0010] Preferably, the Z bearing shaft is provided with two OMRON switches on the front side, the two OMRON switches are arranged in the axial direction of the Z bearing shaft, and the worm gear reducer is fixed with an inductive metal sheet between the two OMRON switches.
[0011] In summary, the present application includes at least one of the following beneficial technical effects:
[0012] 1. The motor drives the worm gear reducer to rotate in the forward and reverse directions to drive the gear to move up and down to drive the Z bearing shaft to reciprocate along its axial direction, and the worm gear reducer has self-locking property, when the motor stops running, the gear is self-locked by the worm gear reducer to limit the Z bearing shaft from falling down, and the motor is provided with a brake and the worm gear reducer is self-locked to form double anti-falling, which has high reliability and the Z bearing shaft is not easy to fall down to cause accidents.
[0013] 2. By arranging the air cylinder, the telescopic shaft of the air cylinder moves synchronously with the Z bearing shaft, and the air cylinder is pulled to buffer the shaking of the Z bearing shaft during the up and down movement, so that the Z bearing shaft moves stably, and because of the buffering of the air cylinder, even if the Z bearing shaft falls down, the falling speed is relatively slow, which is convenient for the operator to have reaction time to move away and reduce the occurrence of safety accidents. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a first angle structure schematic view of a heavy load truss Z axis anti-falling mechanism of the embodiment.
[0015] Figure 2 It is a second angle structure schematic view of a heavy load truss Z axis anti-falling mechanism of the embodiment.
[0016] The drawings show that: 1, motor; 2, worm gear reducer; 21, inductive metal sheet; 3, Z bearing shaft; 31, rack; 32, sliding rail; 33, sliding block; 34, mounting seat; 35, connecting seat; 36, abutting seat; 37, OMRON switch; 4, gear; 5, air cylinder. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0018] Referring to Figure 1 and Figure 2 , a heavy-duty truss Z-axis anti-falling mechanism, comprising a motor 1, a worm gear reducer 2, a Z-bearing shaft 3, the motor 1 is connected with the input end of the worm gear reducer 2, the output end of the worm gear reducer 2 is provided with a gear 4, the motor 1 drives the worm gear reducer 2 to rotate in the opposite direction to make the gear 4 rotate in the opposite direction, the worm gear structure has self-locking property, after the motor 1 stops, the gear 4 is locked and cannot rotate, the worm gear reducer 2 is connected with other structures in the heavy-duty truss for fixed installation, which is usually an X-axis drive structure or a Y-axis drive structure, the Z-bearing shaft 3 is in the shape of a square column, one side of the Z-bearing shaft 3 is provided with a rack 31 extending in the axial direction, the back of the Z-bearing shaft 3 is provided with a sliding rail 32 extending in the axial direction, the sliding rail 32 is provided with a sliding block 33, the sliding block 33 is connected with a mounting seat 34, the mounting seat 34 is used for fixed installation with other structures in the heavy-duty truss, so that the Z-bearing shaft 3 can slide up and down, which is also usually an X-axis drive structure or a Y-axis drive structure, the gear 4 is engaged with the rack 31, the motor 1 drives the gear 4 to rotate in the opposite direction to make the rack 31 drive the Z-bearing shaft 3 to slide up and down, and when the motor 1 stops, the self-locking property of the worm gear structure makes the gear 4 unable to rotate, the fixed gear 4 limits the movement of the rack 31 to prevent the Z-bearing shaft 3 from falling, the motor 1 is also provided with a brake, which forms double anti-falling with the worm gear self-locking, and has high reliability, the Z-bearing shaft 3 is not easy to fall and cause accidents.
[0019] Referring to Figure 1 , further, a heavy-duty truss Z-axis anti-falling mechanism also comprises a gas cylinder 5, the gas cylinder 5 is parallel to the Z-bearing shaft 3, and the gas cylinder 5 is fixed on the mounting seat 34 and located on the side of the Z-bearing shaft 3 away from the rack 31, the side of the Z-bearing shaft 3 away from the rack 31 is provided with a connecting seat 35, the connecting seat 35 is connected and fixed with the telescopic shaft of the gas cylinder 5, in the movement of the Z-bearing shaft 3, the telescopic shaft of the gas cylinder 5 moves synchronously with the Z-bearing shaft 3, the gas cylinder 5 buffers the shaking of the Z-bearing shaft 3 during the up and down movement, so that the Z-bearing shaft 3 moves stably, and because of the buffering of the gas cylinder 5, even if the Z-bearing shaft 3 falls, the falling speed is relatively slow, which is convenient for the operator to have reaction time to move away and reduce the occurrence of safety accidents.
[0020] Referring to Figure 2Further, the Z load-bearing shaft 3 is provided with abutting seats 36 at both ends of the back surface, and the two abutting seats 36 are within the length range of the slide rail 32, the mounting seat 34 is between the two abutting seats 36, and the opposite side of the two abutting seats 36 is provided with rubber blocks, the abutting seat 36 abuts the mounting seat 34, which is convenient for limiting the Z load-bearing shaft 3 to separate from the mounting seat 34 when the stroke control of the Z load-bearing shaft 3 fails, and is convenient for limiting the Z load-bearing shaft 3 to drop when the Z load-bearing shaft 3 drops, and the abutting seat 36 abuts on the mounting seat 34 to limit the Z load-bearing shaft 3 to drop, which plays a passive anti-falling effect, and the rubber blocks are used to buffer the collision.
[0021] With reference to Figure 1 Further, the Z load-bearing shaft 3 is provided with two OMRON switches 37 on the front surface, the two OMRON switches 37 are arranged at intervals along the axial direction of the Z load-bearing shaft 3, and the worm gear reducer 2 is fixed with a sensing metal sheet 21, and the sensing metal sheet 21 is between the two OMRON switches 37, and the OMRON switch 37 senses the sensing metal sheet 21 and controls the motor 1 and the air cylinder 5 to operate in cooperation with the external control system to realize the stroke control of the Z load-bearing shaft 3.
[0022] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A heavy load truss Z-axis anti-falling mechanism, characterized in that: The utility model relates to a Z bearing axle, a motor, a worm gear reducer and a gear, the motor is connected with the input end of the worm gear reducer, the motor is provided with a band brake, the output end of the worm gear reducer is provided with a gear, the Z bearing axle is provided with a rack extending along the axial direction of the Z bearing axle, and the gear is engaged with the rack.
2. The heavy-duty truss Z-axis anti-falling mechanism according to claim 1, characterized in that: Further comprising a cylinder, the cylinder is parallel to the Z bearing axle, the telescopic shaft of the cylinder is connected with the Z bearing axle.
3. The heavy-duty truss Z-axis anti-falling mechanism according to claim 1, characterized in that: The back of the Z bearing axle is provided with a sliding rail extending along the axial direction of the Z bearing axle, a sliding block is slidably connected on the sliding rail, and a mounting seat is connected on the sliding block.
4. The heavy-duty truss Z-axis anti-falling mechanism according to claim 3, characterized in that: The back of the Z bearing axle is provided with an abutting seat at both ends, the mounting seat is between the two abutting seats, and the two abutting seats are within the length range of the sliding rail.
5. The heavy-duty truss Z-axis fall protection mechanism of claim 4, wherein: Rubber blocks are arranged on the opposite sides of the two abutting seats.
6. The heavy duty truss Z-axis fall protection mechanism of claim 1, wherein: The front of the Z bearing axle is provided with two OMRON switches, the two OMRON switches are arranged at intervals along the axial direction of the Z bearing axle, an inductive metal sheet is fixed on the worm gear reducer, and the inductive metal sheet is between the two OMRON switches.