Anti-falling overspeed protection device for cargo carrying table of stacking machine

Abstract

The anti-falling overspeed protection device comprises the cargo carrying table and a guide seat, safety tongs are arranged on the cargo carrying table, the safety tongs are connected with a safety tongs connecting plate, and the safety tongs connecting plate is fixedly connected with a connecting rod and an overspeed connecting rod; the overspeed connecting rod is fixedly connected with the middle of the safety gear connecting plate, one end of the overspeed connecting rod is hinged to the cargo carrying table mounting plate, and the other end of the overspeed connecting rod is fixed to the overspeed protection steel wire rope. The upper end of the compression rod penetrates through the supporting spring and is fixed at the lower end of the guide seat through a locking nut; a guide rod is further fixed to the lower end of the guide seat through a nut, the guide rod penetrates through the spring support and the compression spring, a pulley shaft penetrates through the upper end of the guide seat, and the pulley shaft further penetrates through the pulley and the pulley bearing and is fixed to the pulley mounting plate through an end cover. The safety protection device is used for safety protection when rope breaking, rope loosening or stalling and overspeed happen to the cargo carrying table of the stacking machine.

Description

Technical Field

[0001] The utility model relates to the technical field of stackers, in particular to a stacker loading platform anti-falling and overspeed protection device. Background Art

[0002] With the rapid development of the logistics industry, the operating efficiency and automation technology level of automated warehouses can greatly improve the logistics efficiency of enterprises. Logistics and warehousing equipment are constantly developing towards automation, intelligence and ease of operation. Automated warehouses have also made great progress and applications. Stackers are the core equipment of automated warehouses. Their efficiency, stability and safety directly affect the performance of the entire warehouse. The stacker's loading platform moves up and down along the columns to achieve the high and low transfer of goods in the warehouse. Due to overweight goods or equipment failure, the loading platform loses control. When it loses control, the loading platform falls too fast, which will cause a major safety hazard. Anti-fall performance is an important factor in the overall performance of the stacker. It is an important component to ensure the fast and safe operation of the stacker. However, the existing anti-fall and overspeed protection device is not sensitive enough for anti-fall braking or can only drive the safety clamp brake when overspeeding. Utility Model Content

[0003] The purpose of the utility model is to provide a stacker crane cargo platform anti-falling and overspeed protection device for the stacker crane cargo platform in response to the above-mentioned problems, which is used for safety protection when the stacker crane cargo platform breaks the rope, loosens the rope or stalls and overspeeds.

[0004] The technical solution of the utility model is as follows:

[0005] A stacker crane loading platform anti-fall and overspeed protection device comprises a loading platform and a guide seat, a safety clamp is provided on the loading platform, the safety clamp is connected to a safety clamp connecting plate, and the safety clamp connecting plate is fixedly connected to a connecting rod and an overspeed connecting rod; the overspeed connecting rod is fixedly connected to the middle part of the safety clamp connecting plate, and one end of the overspeed connecting rod is hinged to the loading platform mounting plate, and the other end is fixed to the overspeed protection wire rope, and the middle part of the overspeed connecting rod is connected to a tension spring; the connecting rod is hinged to the lower end of the compression rod, and the upper end of the compression rod passes through the support spring and is fixed to the lower end of the guide seat through a locking nut; the lower end of the guide seat is also fixed with a guide rod through a nut, and the guide rod passes through the spring bracket and the compression spring, and the upper end of the guide seat is passed through the pulley shaft, and the pulley shaft also passes through the pulley and the pulley bearing, and is fixed to the pulley mounting plate through the end cover.

[0006] Furthermore, the safety clamp connecting plate fixes the connecting rod and the overspeed connecting rod at the same time, and the safety clamp is triggered when the steel wire breaks or the vehicle stalls due to overspeed.

[0007] Furthermore, one end of the tension spring is fixedly connected to the overspeed connecting rod, and the other end is fixedly connected to the cargo platform.

[0008] Furthermore, at least two groups of guide rods and compression springs are provided, and the two groups of guide rods and compression springs are symmetrically arranged on the guide seat.

[0009] Furthermore, the pulley shaft is provided with an anti-rotation notch to prevent the pulley from flipping over or shaking, and both ends of the pulley shaft are pressed tightly by end covers.

[0010] Furthermore, the pulley mounting plate is provided with a waist-shaped groove which regulates the pulley movement trajectory and prevents the pulley from shaking.

[0011] Furthermore, the pulley mounting plates are fixed on the square steel pipes on both sides of the cargo platform.

[0012] Compared with the existing technology, the beneficial effects of the present invention are:

[0013] This device is designed to prevent the stacker's cargo platform from falling and overspeeding. During normal operation, the lifting wire rope passes through the pulley, pulling the pulley shaft against the upper end of the waist-shaped groove in the pulley mounting plate. The pulley shaft then pulls on the guide seat, compressing the compression spring. If the lifting wire rope breaks, the weight of the guide seat, pulley, and pulley shaft, combined with the elasticity of the compression spring, pushes the compression rod downward, triggering the safety clamp. In the event of overspeed, the overspeed protection wire rope pulls on the overspeed connecting rod, triggering the safety clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front structure of a stacker crane cargo platform anti-fall and overspeed protection device.

[0015] Figure 2 This is a side structural diagram of a stacker crane cargo platform anti-fall and overspeed protection device.

[0016] Figure markings: 1- pulley mounting plate, 2- pulley, 3- pulley shaft, 4- pulley bearing, 5- end cover, 6- guide seat, 7- guide rod, 8- compression spring, 9- locking nut, 10- support spring, 11- compression rod, 12- connecting rod, 13- spring bracket, 14- safety clamp connecting plate, 15- safety clamp, 16- overspeed connecting rod, 17- tension spring. DETAILED DESCRIPTION

[0017] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0018] The features and performance of the present invention are further described in detail below with reference to the embodiments.

[0019] See also Figure 1 and Figure 2 , a stacker crane loading platform anti-fall and overspeed protection device, including a loading platform and a guide seat 6, a safety clamp 15 is provided on the loading platform, the safety clamp 15 is connected to the safety clamp connecting plate 14, the safety clamp connecting plate 14 is fixedly connected to the connecting rod 12 and the overspeed connecting rod 16; the overspeed connecting rod 16 is fixedly connected to the middle part of the safety clamp connecting plate 14, and one end of the overspeed connecting rod 16 is hinged to the loading platform mounting plate, and the other end is fixed to the overspeed protection wire rope, and the middle part of the overspeed connecting rod 16 is connected to a tension spring 17; the connecting rod 12 is hinged to the lower end of the compression rod 11, and the upper end of the compression rod 11 passes through the support spring 10 and is fixed to the lower end of the guide seat 6 through a locking nut 9; the lower end of the guide seat 6 is also fixed with a guide rod 7 through a nut, and the guide rod 7 passes through the spring bracket 13 and the compression spring 8, and the upper end of the guide seat 6 is passed through the pulley shaft 3, and the pulley shaft 3 also passes through the pulley 2 and the pulley bearing 4, and is fixed to the pulley mounting plate 1 through the end cover 5.

[0020] The safety gear connecting plate 14 fixes the connecting rod 12 and the overspeed connecting rod 16 at the same time, and triggers the safety gear 15 when the steel wire breaks or the overspeed stall occurs.

[0021] One end of the tension spring 17 is fixedly connected to the overspeed link 16, and the other end is fixedly connected to the cargo platform.

[0022] At least two sets of guide rods 7 and compression springs 8 are provided, and the two sets of guide rods 7 and compression springs 8 are symmetrically arranged on the guide base 6. The compression springs 8 are located between the bottom of the guide base 6 and the spring bracket 13. The spring bracket 13 is fixed to the square steel pipes on both sides of the cargo platform by bolts and can be removably installed.

[0023] The pulley shaft 3 is provided with an anti-rotation notch to prevent the pulley 2 from turning over or shaking, and both ends of the pulley shaft 3 are pressed tightly by end covers 5.

[0024] The pulley mounting plate 1 is provided with a waist-shaped groove which regulates the moving track of the pulley 2 and prevents the pulley 2 from shaking.

[0025] The pulley mounting plate 1 is fixed on the square steel pipes on both sides of the cargo platform.

[0026] The guide seat 6 is composed of two side plates and a bottom plate and can be detachably installed.

[0027] When the pulley shaft 2 reaches the bottom of the waist-shaped groove, there is still a gap between the guide rod 7 and the spring bracket 13.

[0028] During normal use, the lifting wire rope passes through pulley 2, pulling the pulley shaft 3 against the upper end of the waist-shaped groove in the pulley mounting plate 1. The pulley shaft 2 pulls the guide seat 6, compressing the compression spring 8. If the lifting wire rope breaks, the gravity of the guide seat 6, pulley 2, and pulley shaft 3, as well as the elasticity of the compression spring 8, causes the compression rod 11 to press down, driving the connecting rod 12 to trigger the safety gear 15. In the event of overspeed, the overspeed protection wire rope pulls the overspeed connecting rod 16, triggering the safety gear 15.

[0029] The above-described embodiments merely represent specific implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of the present application. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the technical concept of the present application, and all such variations and improvements fall within the scope of protection of the present application.

Claims

1. A stacker crane cargo platform anti-falling and overspeed protection device, characterized in that: The invention comprises a cargo platform and a guide seat (6), wherein a safety clamp (15) is provided on the cargo platform, the safety clamp (15) is connected to a safety clamp connecting plate (14), the safety clamp connecting plate (14) is fixedly connected to a connecting rod (12) and an overspeed connecting rod (16); the overspeed connecting rod (16) is fixedly connected to the middle part of the safety clamp connecting plate (14), and one end of the overspeed connecting rod (16) is hinged to the cargo platform mounting plate, and the other end is fixed to the overspeed protection wire rope, and the middle part of the overspeed connecting rod (16) is connected to a tension spring (17); the connecting rod (1 2) is hinged to the lower end of the compression rod (11), the upper end of the compression rod (11) passes through the support spring (10) and is fixed to the lower end of the guide seat (6) through a locking nut (9); the lower end of the guide seat (6) is also fixed with a guide rod (7) through a nut, the guide rod (7) passes through the spring bracket (13) and the compression spring (8), the upper end of the guide seat (6) is passed through the pulley shaft (3), and the pulley shaft (3) also passes through the pulley (2) and the pulley bearing (4), and is fixed to the pulley mounting plate (1) through the end cover (5).

2. The stacker crane cargo platform anti-falling and overspeed protection device according to claim 1 is characterized in that: The safety clamp connecting plate (14) simultaneously fixes the connecting rod (12) and the overspeed connecting rod (16), and triggers the safety clamp (15) when the steel wire breaks or the overspeed stall occurs.

3. The stacker crane cargo platform anti-falling and overspeed protection device according to claim 1, characterized in that: One end of the tension spring (17) is fixedly connected to the overspeed connecting rod (16), and the other end is fixedly connected to the cargo platform.

4. The stacker crane cargo platform anti-falling and overspeed protection device according to claim 1 is characterized in that: The guide rods (7) and compression springs (8) are each provided in at least two groups, and the two groups of guide rods (7) and compression springs (8) are symmetrically arranged on the guide seat (6).

5. The stacker crane cargo platform anti-falling and overspeed protection device according to claim 1, characterized in that: The pulley shaft (3) is provided with an anti-rotation notch for preventing the pulley (2) from turning over or shaking, and both ends of the pulley shaft (3) are pressed tightly by end covers (5).

6. The stacker crane cargo platform anti-falling and overspeed protection device according to claim 1, characterized in that: The pulley mounting plate (1) is provided with a waist-shaped groove for regulating the moving track of the pulley (2) and preventing the pulley (2) from shaking.

7. A stacker crane cargo platform anti-falling and overspeed protection device according to claim 1 or 6, characterized in that: The pulley mounting plates (1) are fixed on the square steel pipes on both sides of the cargo platform.

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