Safety test experiment table for anti-falling system of cargo carrying table
By designing a safety test bench for anti-fall system of the cargo platform, and using technical means such as automatic de-hooking hooks, speed detection devices and safety clamps, convenient safety testing of the anti-fall system is achieved, solving the problem that anti-fall system testing in the existing technology needs to be carried out after the stacker is assembled, and the risk of equipment rectification and economic losses is reduced.
Patent Information
- Application Number
- CN202421230381.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The type test of the existing cargo table anti-fall system is usually carried out after the stacker is assembled. If the test results do not meet the working conditions, the anti-fall system plan needs to be changed, resulting in the completed equipment that may face rectification or scrapping, causing significant economic losses.
A safety test bench for anti-fall system of cargo table is designed, including a fixing frame, anti-fall system and bench. The lifting and falling of the bench is achieved through automatic de-hooking hooks. The rotation and braking of the wire rope are controlled by the speed detection device and the wire rope brake mechanism. The stop and fall of the bench is achieved through the clamping of safety pliers and the linkage of soft shafts, and convenient safety testing is conducted.
It realizes convenient safety testing of the anti-fall system, with a simple overall structure and low production and testing costs. It effectively replaces the stacker's safety testing of the anti-fall system, avoiding equipment rectification and economic losses caused by unqualified testing.
Smart Images
Figure CN222579634U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of safety test of a cargo platform anti-fall system, in particular to a safety test bench for a cargo platform anti-fall system. Background Art
[0002] Stacking crane refers to a special crane that uses a fork or a skewer as a picking device to grab, transport and stack or pick and place unit goods from high-rise shelves in warehouses, workshops, etc. It is a kind of storage equipment.
[0003] Stacking cranes, also known as stackers, are the most important lifting and transportation equipment in a three-dimensional warehouse and are the symbol of the characteristics of a three-dimensional warehouse. The main function of a stacking crane is to run back and forth in the aisles of a three-dimensional warehouse, storing the goods at the entrance of the aisle into the cargo compartment of the shelf, or taking out the goods in the cargo compartment and transporting them to the entrance of the aisle.
[0004] With the development of the automated warehouse industry, people are paying more and more attention to the safety of stacker equipment, especially the lifting safety of its cargo platform. In order to prevent the cargo platform of the stacker from falling rapidly due to the breaking of the lifting wire rope during the lifting process, a cargo platform anti-falling system is installed on the stacker.
[0005] With the development of the high-bay warehouse industry, more and more heavy-duty cargo stackers are emerging. The lifting weight is getting heavier and heavier, and the load of the anti-fall system is also increasing. The anti-fall test is particularly important. The type test of the anti-fall system is generally carried out after the stacker is assembled. If the test results of the anti-fall system do not meet the operating conditions, the anti-fall system plan needs to be changed. The completed equipment may face rectification or scrapping, which will incur large rectification costs and bring great economic losses. Utility Model Content
[0006] To solve the problem that the type test of the anti-fall system is generally carried out after the stacker is assembled, if the test result of the anti-fall system does not meet the operating conditions, the anti-fall system plan needs to be changed, and the completed equipment may face rectification or scrapping, which will incur large rectification costs and bring about large economic losses. The utility model provides a cargo platform anti-fall system safety test bench.
[0007] The utility model is realized by the following technical solutions:
[0008] A safety test bench for a cargo platform anti-fall system comprises a fixed frame, an anti-fall system and a test bench; the fixed frame comprises two upright columns and a crossbeam connected to the tops of the two columns, a lifting device is installed on the crossbeam, and the lifting device is connected to the test bench through an automatic unhooking hook; guide rails are installed on the two columns along their length directions, and guide wheel groups cooperating with the guide rails are installed on both sides of the test bench; the anti-fall system comprises a steel wire rope and a safety clamp installed on both sides of the test bench and capable of clamping the guide rails, an upper pulley and a lower pulley for the steel wire rope to be wound around are respectively installed at the upper and lower ends of the fixed frame, and a speed detection device capable of detecting the speed of the upper pulley and a steel wire rope braking mechanism capable of braking the steel wire rope are also installed on the upper part of the fixed frame; rotating shafts are rotatably installed on the left and right sides of the test bench, a second swing arm and a third swing arm are installed on the rotating shaft, the second swing arm is connected to the corresponding safety clamp, and the two third swing arms are connected through a linkage flexible shaft; a first swing arm connected to the steel wire rope is installed on one of the rotating shafts; a tension spring is connected between the test bench and the first swing arm.
[0009] A further improvement of the utility model is that a wire rope clamping device which is clamped with the wire rope is rotatably connected and installed on one end of the first swing arm away from the rotating shaft.
[0010] A further improvement of the utility model is that a lifting rod connected to the second swing arm is installed on the safety clamp.
[0011] A further improvement of the utility model is that a buffer capable of reducing shock to the stand support is installed at the bottom of the fixing frame.
[0012] A further improvement of the utility model is that the buffer is a polyurethane buffer.
[0013] A further improvement of the utility model is that a second base frame is connected between the bottoms of the two upright posts; and a support column for supporting and installing the buffer is connected and installed on the second base frame.
[0014] A further improvement of the utility model is that two support columns are provided and are symmetrically arranged on the left and right.
[0015] A further improvement of the utility model is that the bottoms of the two upright posts are connected with a first base frame in the front-to-back direction.
[0016] A further improvement of the utility model is that a cam is sleeved on the rotating shaft connected to the first swing arm, and a travel switch corresponding to the cam is installed on the stand.
[0017] A further improvement of the utility model is that a lifting belt is arranged on the upper side of the platform, and a pull rope is connected to the automatic unhooking hook.
[0018] It can be seen from the above technical solutions that the beneficial effects of the utility model are:
[0019] The lifting device lifts the gantry up through the automatic unhooking hook, and realizes the falling of the gantry through the automatic unhooking hook; thus, the first swing arm drives the wire rope to rotate at a high speed, and the speed detection device detects the speed of the upper pulley. When the speed of the upper pulley is high, the wire rope brake mechanism is controlled to clamp and brake the wire rope, so that the wire rope will rotate upward on the rotating shaft through the first swing arm, thereby driving the safety clamp to be lifted up through the second swing arm and the lifting rod, and the safety clamp is clamped and braked on the guide rail, and the synchronous action of the safety clamps on the left and right sides is realized through the linkage flexible shaft, and finally the gantry stops falling, realizing the convenient safety test of the anti-fall system. The overall structure is simple, the manufacturing and testing costs are low, the test is convenient, and it can effectively replace the stacker for the safety test of the anti-fall system, and it has good practicality. When the stacker has not yet been manufactured, this test bench can be used to complete the anti-fall system test in advance. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.
[0022] Figure 2 It is a schematic diagram of the installation of the anti-fall system according to a specific implementation mode of the utility model.
[0023] Figure 3 for Figure 1 Schematic diagram of the partially enlarged structure of part A in the middle.
[0024] Figure 4 for Figure 2 Schematic diagram of the partial enlarged structure of part B in the middle.
[0025] In the accompanying drawings: 1, fixed frame, 11, first base frame, 12, column, 13, guide rail, 14, crossbeam, 15, buffer, 16, second base frame, 17, support column, 2, stand, 21, lifting belt, 22, guide wheel group, 3, safety clamp, 31, lifting rod, 4, lifting device, 41, automatic unhooking hook, 42, pull rope, 5, wire rope, 51, lower pulley, 52, upper pulley, 53, speed detection device, 61, rotating shaft, 62, first swing arm, 63, wire rope clamping device, 64, second swing arm, 65, third swing arm, 66, linkage flexible shaft, 67, tension spring, 68, cam, 69, travel switch. DETAILED DESCRIPTION
[0026] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.
[0027] like Figure 1-4 As shown, the utility model discloses a safety test bench for a cargo platform anti-fall system, comprising a fixed frame 1, an anti-fall system and a platform 2; the fixed frame 1 comprises two upright columns 12 and a crossbeam 14 connected between the tops of the two columns 12, a lifting device 4 is installed on the crossbeam 14, and the lifting device 4 is connected to the platform 2 through an automatic unhooking hook 41; guide rails 13 are installed on the inner sides of the two columns 12 along their length direction, and guide wheel groups 22 cooperating with the guide rails 13 are respectively installed at the upper and lower parts of both sides of the platform 2; the anti-fall system comprises a steel wire rope 5 and a safety clamp 3 installed on both sides of the platform 2 and capable of clamping the guide rails 13, and the upper and lower ends of the fixed frame 1 are respectively provided with a steel wire rope 5 for supplying the steel wire rope 5 The upper pulley 52 and the lower pulley 51 are surrounded, and a speed detection device 53 capable of detecting the speed of the upper pulley 52 and a wire rope braking mechanism capable of braking the wire rope 5 are also installed on the upper part of the fixed frame 1; the left and right sides of the platform 2 are respectively rotatably installed with a front-to-back direction rotating shaft 61, and the second swing arm 64 and the third swing arm 65 are installed on the rotating shaft 61, the second swing arm 64 is connected to the corresponding lifting rod 31 on the safety clamp 3, and the two third swing arms 65 are connected by a linkage flexible shaft 66; a first swing arm 62 connected to the wire rope 5 is installed on one of the rotating shafts 61; a tension spring 67 is connected between the platform 2 and the first swing arm 62, and the first swing arm 62 can be kept in a horizontal state through the tension spring 67.
[0028] The lifting device 4 lifts the gantry 2 up through the automatic unhooking hook 41, and realizes the falling of the gantry 2 through the automatic unhooking hook 41; thereby, the first swing arm 62 drives the steel wire rope 5 to rotate at a high speed, and the speed detection device 53 detects the speed of the upper pulley 52. When the speed of the upper pulley 52 is high, the steel wire rope brake mechanism is controlled to clamp and brake the steel wire rope 5, so that the steel wire rope 5 will be lifted and rotated on the rotating shaft 61 through the first swing arm 62, thereby driving the safety clamp 3 to be lifted up through the second swing arm 64 and the lifting rod 31, realizing the clamping and braking of the safety clamp 3 on the guide rail 13, and realizing the synchronous action of the safety clamp 3 on the left and right sides through the linkage flexible shaft 66, finally realizing the stopping of the falling of the gantry 2, and realizing the convenient safety test of the anti-falling system. The overall structure is simple, the manufacturing and testing costs are low, the testing is convenient, and it can effectively replace the stacker for the safety test of the anti-falling system, and has good practicality.
[0029] Among them, the lifting device 4 is a hand chain hoist, a lifting belt 21 is provided on the upper side of the platform 2, and a pull rope 42 is connected to the automatic unhooking hook 41. The hand chain hoist lifts the lifting belt 21 on the upper side of the platform 2 through the automatic unhooking hook 41, and the automatic unhooking hook 41 can be automatically unhooked by pulling the pull rope 42, thereby realizing the safety test of the platform 2 falling and the anti-falling system.
[0030] Among them, the end of the first swing arm 62 away from the rotating shaft 61 is rotatably connected and installed with a wire rope clamping device 63 clamped with the wire rope 5. The first swing arm 62 is reliably connected to the wire rope 5 and can be flexibly rotated, so that the first swing arm 62 can be reliably pulled upward.
[0031] A buffer 15 capable of supporting and damping the platform 2 is installed at the bottom of the fixing frame 1. When the anti-fall system fails, the platform 2 is supported by the buffer 15 to dampen the platform 2 and avoid damage due to a large impact.
[0032] Furthermore, the buffer 15 is a polyurethane buffer, which has large energy absorption and good buffering performance.
[0033] A second base frame 16 is connected between the bottoms of the two columns 12; a support column 17 for supporting and installing the buffer 15 is connected to the second base frame 16. The two columns 12, the second base frame 16 and the crossbeam 14 form a stable rectangular frame structure, which ensures the stability of the structure and can realize the heightening installation of the buffer 15, making it easy to replace the buffer 15.
[0034] Furthermore, two support columns 17 are provided and are symmetrically arranged on both sides to ensure the stability of the buffer and avoid the phenomenon of tilting due to force.
[0035] The bottom of the column 12 is connected to a first base frame 11 in the front-to-back direction, so as to ensure the stability of the overall positioning and installation of the fixing frame 1.
[0036] A cam 68 is mounted on the rotating shaft 61 connected to the first swing arm 62, and a travel switch 69 corresponding to the cam 68 is installed on the stand 2. When the safety clamp 3 is braked, that is, the rotating shaft 61 drives the cam 68 to rotate, the travel switch 69 can be triggered by the cam 68, and an emergency stop signal is sent to the system through the travel switch 69.
[0037] In the safety test bench for the cargo platform anti-fall system, the lifting device 4 lifts the platform 2 by the automatic unhooking hook 41, and the platform 2 is automatically unhooked by the automatic unhooking hook 41; thereby, the steel wire rope 5 is driven to rotate at a high speed by the first swing arm 62, and the speed detection device 53 detects the speed of the upper pulley 52. When the speed of the upper pulley 52 is high, the steel wire rope brake mechanism is controlled to clamp and brake the steel wire rope 5, so that the steel wire rope 5 will be lifted and rotated on the rotating shaft 61 by the first swing arm 62, thereby driving the safety clamp 3 to be lifted by the second swing arm 64 and the lifting rod 31, and the safety clamp 3 is clamped and braked on the guide rail 13, and the synchronous action of the safety clamp 3 on the left and right sides is realized by the linkage flexible shaft 66, and finally the platform 2 is stopped from falling, and a convenient safety test of the anti-fall system is realized. The overall structure is simple, the manufacturing and testing costs are low, the test is convenient, and it can effectively replace the stacker for the safety test of the anti-fall system, and it has good practicality.
[0038] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.
[0039] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A cargo platform anti-fall system safety test bench, characterized in that: The invention comprises a fixed frame (1), an anti-fall system and a stand (2); the fixed frame (1) comprises two upright columns (12) and a crossbeam (14) connected to the tops of the two columns (12); a lifting device (4) is installed on the crossbeam (14); the lifting device (4) is connected to the stand (2) via an automatic unhooking hook (41); guide rails (13) are installed on the two columns (12) along their length direction; guide wheel groups (22) are installed on both sides of the stand (2) to cooperate with the guide rails (13); the anti-fall system comprises a steel wire rope (5) and a safety clamp (3) installed on both sides of the stand (2) and capable of clamping the guide rails (13); the upper and lower ends of the fixed frame (1) are respectively provided with a ring for the steel wire rope (5) The upper pulley (52) and the lower pulley (51) are wound around the upper pulley (52), and a speed detection device (53) capable of detecting the speed of the upper pulley (52) and a wire rope brake mechanism capable of braking the wire rope (5) are also installed on the upper part of the fixed frame (1); the left and right sides of the platform (2) are rotatably mounted with a rotating shaft (61), and a second swing arm (64) and a third swing arm (65) are installed on the rotating shaft (61), the second swing arm (64) is connected to the corresponding safety clamp (3), and the two third swing arms (65) are connected through a linkage flexible shaft (66); a first swing arm (62) connected to the wire rope (5) is installed on one of the rotating shafts (61); and a tension spring (67) is connected between the platform (2) and the first swing arm (62).
2. The cargo platform anti-fall system safety test bench according to claim 1 is characterized in that: One end of the first swing arm (62) away from the rotating shaft (61) is rotatably connected to be mounted with a wire rope clamping device (63) clamped with the wire rope (5).
3. The cargo platform anti-fall system safety test bench according to claim 1 is characterized in that: A lifting rod (31) connected to the second swing arm (64) is mounted on the safety clamp (3).
4. The cargo platform anti-fall system safety test bench according to claim 1 is characterized in that: A buffer (15) capable of supporting and absorbing shock of the platform (2) is installed at the bottom of the fixed frame (1).
5. The cargo platform anti-fall system safety test bench according to claim 4 is characterized in that: The buffer (15) is a polyurethane buffer.
6. The cargo platform anti-fall system safety test bench according to claim 5 is characterized in that: A second base frame (16) is connected between the bottoms of the two upright columns (12); a support column (17) for supporting and mounting the buffer (15) is connected and mounted on the second base frame (16).
7. The cargo platform anti-fall system safety test bench according to claim 6 is characterized in that: Two support columns (17) are provided and are symmetrically arranged on the left and right.
8. The cargo platform anti-fall system safety test bench according to claim 6, characterized in that: The bottoms of the two upright posts (12) are connected to a first bottom frame (11) in the front-to-back direction.
9. The cargo platform anti-fall system safety test bench according to claim 1, characterized in that: A cam (68) is sleeved on a rotating shaft (61) connected to the first swing arm (62), and a travel switch (69) corresponding to the cam (68) is installed on the stand (2).
10. The cargo platform anti-fall system safety test bench according to claim 1, characterized in that: A lifting belt (21) is provided on the upper side of the platform (2), and a pull rope (42) is connected to the automatic unhooking hook (41).