Emergency braking device and stacking machine

Abstract

The utility model relates to the technical field of cargo transportation, in particular to an emergency braking device and a stacker, the emergency braking device comprises a linkage frame, a driving module and a plurality of safety tongs, the linkage frame is hinged to one end, close to a stand column, of a bearing frame of the stacker, and the safety tongs are fixedly installed on the bearing frame and connected with the linkage frame; the driving module is connected with the linkage frame, when a rope of the stacking machine is broken and the bearing frame falls, the driving module can drive the linkage frame to rotate so that the linkage frame can drive the safety tongs to act to clamp the stand column, and therefore the bearing frame is prevented from further falling. The braking force of the braking device can be effectively improved, so that the braking device can realize emergency braking when the stacking machine is in a heavy load condition, and the safety when the stacking machine transports heavy-load goods is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo transportation, in particular to an emergency braking device and a stacker. Background Art

[0002] Warehousing logistics is the use of self-built or leased warehouses and sites to store, keep, load, unload, and distribute goods. Due to the limitation of the available space, stackers are usually used to place materials on the three-dimensional warehouse. Stackers evolved from forklifts and bridge stackers. Their main purpose is to shuttle back and forth in the aisles of high-rise shelves, depositing goods at the entrance of the aisle into the cargo compartment, or taking out goods from the cargo compartment and transporting them to the entrance of the aisle.

[0003] For example, the stacker disclosed in the patent document with publication number CN112027471A includes a column, a crossbeam, a base, a cargo platform and a lifting device. The lifting device is driven by a lifting motor to realize the lifting of the cargo platform. The cargo platform of the stacker is provided with multiple fork mechanisms, so that when the lifting device drives the cargo platform to lift, multiple goods can be stacked at the same time, which greatly improves the stacking efficiency of goods and meets the production needs. In order to avoid the cargo platform from falling due to rope breakage, the stacker is usually provided with an anti-falling emergency braking device, which mainly includes a wire rope and a safety clamp. When the cargo platform falls, the wire rope pulls the safety clamp to make the safety clamp clamp the column, and the friction between the safety clamp and the column realizes the braking of the cargo platform, thereby preventing the cargo platform from continuing to fall.

[0004] However, due to the limitation of the braking force of a single safety clamp, the emergency brake device can only brake under light load conditions. When it is heavily loaded and falls at an accelerated rate, the safety clamp may be damaged, making it difficult to brake effectively, thus affecting the safety of the equipment. Utility Model Content

[0005] In view of this, it is necessary to provide an emergency braking device and a stacker to solve the technical problem that the stacker in the prior art is difficult to achieve emergency braking under heavy load conditions.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model provides an emergency brake device for installation on a stacker, wherein the stacker comprises a column and a carrier, wherein the carrier is slidably connected to the column along the height direction of the column, and comprises:

[0007] A linkage frame, hinged to one end of the bearing frame close to the column;

[0008] A driving module connected to the linkage frame, and used to drive the linkage frame to rotate when the supporting frame falls; and

[0009] A plurality of safety clamps are fixed to the bearing frame and connected to the linkage frame, and are used for clamping the column through the rotation of the linkage frame.

[0010] In some embodiments, the linkage frame includes a connecting rod and a connecting frame, the connecting rod is hinged to the supporting frame, the connecting frame is hinged to the connecting rod, and each of the safety clamps is connected to the connecting frame.

[0011] In some embodiments, the connecting frame includes a hinged portion and a plurality of connecting portions, the hinged portion is hinged to the connecting rod, the connecting portions are spaced apart from each other and fixed to the hinged portion, and the safety clamps are respectively connected to the connecting portions.

[0012] In some embodiments, the driving module includes a driving unit, a connecting unit and a rotating shaft, the rotating shaft is rotatably connected to the supporting frame, the driving unit is connected to the rotating shaft, and is used to drive the rotating shaft to rotate when the supporting frame falls, and the two ends of the connecting unit are respectively connected to the rotating shaft and the linkage frame, and are used to pull the linkage frame to rotate through the rotation of the rotating shaft.

[0013] In some embodiments, the connecting unit includes a cam member, a rope head and a connecting rope, the cam member is fixed to the rotating shaft, the rope head is hinged to the linkage frame, and two ends of the connecting rope are respectively connected to the cam member and the rope head.

[0014] In some embodiments, the driving unit includes a driving shaft and a transmission assembly, wherein the driving shaft is rotatably connected to the supporting frame and is used to rotate when the supporting frame falls, and the transmission assembly is connected to the driving shaft and the rotating shaft and is used to drive the rotating shaft to rotate by rotating the driving shaft.

[0015] In some embodiments, the transmission assembly includes an intermediate shaft, a first chain and a second chain, the intermediate shaft is rotatably connected to the carrier frame, the first chain is sleeved on the drive shaft and the intermediate shaft, and the second chain is sleeved on the rotating shaft and the intermediate shaft.

[0016] In some embodiments, the driving module also includes a steel wire rope, a connecting piece and a locking piece. The steel wire rope is looped over both ends of the column and can rotate around the column. The connecting piece is fixed to the steel wire rope. The locking piece is fixed to the column and is used to lock the steel wire rope when the supporting frame falls. The driving shaft is eccentrically arranged on the connecting piece and is hinged to the connecting piece.

[0017] In some embodiments, an articulation block is disposed at the end of the driving shaft, an articulation cavity is disposed at the connecting member, and an end of the articulation block extends to the articulation cavity and is articulated with the connecting member.

[0018] The technical solution of the utility model also provides a stacker, comprising the emergency braking device.

[0019] Compared with the prior art, the beneficial effects of the emergency braking device and stacker of the utility model include: by arranging a linkage frame, a drive module and a plurality of safety clamps, the linkage frame is hinged to one end of the stacker's load-bearing frame close to the column, each safety clamp is fixedly mounted on the load-bearing frame and connected to the linkage frame, and the drive module is connected to the linkage frame. When the rope of the stacker breaks and the load-bearing frame falls, the drive module can drive the linkage frame to rotate, so that the linkage frame drives each safety clamp to operate and clamp the column, thereby preventing the load-bearing frame from falling further. Through the combined braking of a plurality of safety clamps, the braking force of the braking device can be effectively improved, so that the braking device can achieve emergency braking when the stacker is overloaded, thereby ensuring the safety of the stacker when transporting heavy-loaded goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the emergency brake device provided by an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0022] Figure 3 A schematic structural diagram of a stacker provided by an embodiment of the utility model.

[0023] Among them, the reference numerals in the figure are:

[0024] 10—column 11—tension wheel 20—carrying frame

[0025] 30 - linkage frame 31 - connecting rod 32 - connecting frame

[0026] 40—driving module 41—driving unit 42—connecting unit

[0027] 43 - rotating shaft 44 - wire rope 45 - connecting piece

[0028] 46 - locking member 50 - safety clamp 321 - hinged part

[0029] 322—connecting part 411—driving shaft 412—transmission assembly

[0030] 421 - cam member 422 - rope head 423 - connecting rope

[0031] 451—articulation chamber 4111—articulation block 4121—intermediate shaft

[0032] 4122—first chain 4123—second chain. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0034] The embodiment of the utility model provides an emergency brake device for installation on a stacker, so that when a load frame 20 of the stacker falls, a plurality of safety clamps 50 are driven to operate simultaneously to brake the load frame 20, thereby increasing the braking force of the emergency brake device, thereby solving the technical problem in the prior art that the stacker is difficult to brake under heavy load conditions.

[0035] The emergency brake device of this embodiment is used to be installed on a stacker, such as Figure 3 As shown, the stacker includes a column 10 and a carrier 20, and the carrier 20 is slidably connected to the column 10 along the height direction of the column 10, as shown in FIG. Figure 1-3 As shown, the emergency braking device includes a linkage frame 30, a drive module 40 and a plurality of safety clamps 50. The linkage frame 30 is hinged to one end of the carrier frame 20 close to the column 10. The drive module 40 is connected to the linkage frame 30 and is used to drive the linkage frame 30 to rotate when the carrier frame 20 falls. Each safety clamp 50 is fixed to the carrier frame 20 and connected to the linkage frame 30, and is used to clamp the column 10 through the rotation of the linkage frame 30.

[0036] Specifically, the emergency braking device is provided with a linkage frame 30, a drive module 40 and a plurality of safety clamps 50. The linkage frame 30 is hinged to one end of the stacker's load frame 20 close to the column 10. Each safety clamp 50 is fixedly installed on the load frame 20 and connected to the linkage frame 30. The drive module 40 is connected to the linkage frame 30. When the rope of the stacker breaks and the load frame 20 falls, the drive module 40 can drive the linkage frame 30 to rotate, so that the linkage frame 30 drives each safety clamp 50 to clamp the column 10, thereby preventing the load frame 20 from falling further. Through the combined braking of a plurality of safety clamps 50, the braking force of the braking device can be effectively improved, so that the braking device can achieve emergency braking when the stacker is overloaded, thereby ensuring the safety of the stacker when transporting heavy goods.

[0037] In this embodiment, the emergency braking device is not limited to use in stackers to achieve emergency braking of the stacker's carrier frame 20. It can also be used in elevators, lifting platforms and other lifting equipment with lifting functions to perform emergency braking on the lifting platform of the lifting equipment. The braking principle is the same as the braking principle applied to stackers.

[0038] It can be understood that the linkage frame 30 can be a single frame structure hinged to the supporting frame 20, and each safety clamp 50 is connected to the frame. When the frame rotates, it drives each safety clamp 50 to move and clamp the column 10. The linkage frame 30 can also be an articulated frame and a plurality of connecting rods. The articulated frame is hinged to the supporting frame 20, one end of each connecting rod is hinged to the articulated frame, and the other end of each connecting rod is respectively connected to each safety clamp 50. When the articulated frame rotates, each connecting rod drives each safety clamp 50 to clamp the column 10.

[0039] In this embodiment, each safety clamp 50 is a conventional safety clamp 50. The number of the safety clamps 50 can be set according to the braking force of each safety clamp 50 and the weight of the cargo carried by the carrier 20.

[0040] In this embodiment, Figure 3 As shown, each safety clamp 50 is arranged at both ends of the carrier frame 20, and two groups of linkage frames 30 are provided. The two groups of linkage frames 30 are respectively fixed at both ends of the carrier frame 20 and connected to each safety clamp 50 at both ends of the carrier frame 20. When the carrier frame 20 falls, the driving module 40 drives the two groups of linkage frames 30 to rotate simultaneously, so that each safety clamp 50 at both ends of the carrier frame 20 clamps the two columns 10 of the stacker respectively, thereby realizing emergency braking of the carrier frame 20.

[0041] It can be understood that the driving module 40 can be a driving device such as a motor and a cylinder. The shaft of the motor is provided with a cam structure, and the cam structure is offset against the linkage frame 30. The cylinder is hinged to the linkage frame 30 through a driving rod. When the sensor senses that the support frame 20 has fallen, the motor or the cylinder is started, and the motor drives the cam structure to rotate, thereby realizing the rotation of the linkage frame 30. The cylinder drives the driving rod to extend and retract, thereby driving the linkage frame 30 to rotate. Finally, the driving unit 41 can drive the linkage frame 30 to rotate when the support frame 20 falls, so that each safety clamp 50 brakes the support frame 20.

[0042] In one embodiment, Figure 1-2 As shown, the linkage frame 30 includes a connecting rod 31 and a connecting frame 32, the connecting rod 31 is hinged to the carrier frame 20, the connecting frame 32 is hinged to the connecting rod 31, and each safety clamp 50 is connected to the connecting frame 32. Specifically, when the carrier frame 20 falls, the driving module 40 drives the connecting rod 31 to rotate, the connecting rod 31 drives the connecting frame 32 to rise, and the connecting frame 32 drives each safety clamp 50 to be linked during the rising process, thereby realizing the emergency braking of the carrier frame 20.

[0043] In one embodiment, Figure 1-2As shown, the connecting frame 32 includes a hinged portion 321 and a plurality of connecting portions 322, the hinged portion 321 is hinged to the connecting rod 31, the connecting portions 322 are spaced apart from each other and fixed to the hinged portion 321, and the safety tongs 50 are respectively connected to the connecting portions 322. Specifically, the hinged portion 321 can realize the hinged connection between the connecting frame 32 and the connecting rod 31, and the connecting portions 322 can facilitate the connection between the connecting frame 32 and the safety tongs 50, so that the safety tongs 50 can be stably braked under the drive of the connecting frame 32.

[0044] In one embodiment, Figure 1-3 As shown, the driving module 40 includes a driving unit 41, a connecting unit 42 and a rotating shaft 43. The rotating shaft 43 is rotatably connected to the carrier 20. The driving unit 41 is connected to the rotating shaft 43, and is used to drive the rotating shaft 43 to rotate when the carrier 20 falls. The two ends of the connecting unit 42 are respectively connected to the rotating shaft 43 and the linkage frame 30, and are used to pull the linkage frame 30 to rotate through the rotation of the rotating shaft 43. Specifically, through the above structure, when the carrier 20 falls, the driving unit 41 drives the rotating shaft 43 to rotate, and the connecting unit 42 drives the linkage frame 30 to rotate through the rotation of the rotating shaft 43, and finally drives each safety clamp 50 to operate, so as to achieve the braking of the carrier 20.

[0045] In this embodiment, the connecting unit 42 is connected to the connecting rod 31 .

[0046] It is understandable that the driving unit 41 can be a motor, a rotary cylinder, etc., any structure that can drive the rotating shaft 43 to rotate when the supporting frame 20 falls.

[0047] It can be understood that the connecting unit 42 can be a rod structure in which one end is eccentrically arranged with the rotating shaft 43 and is hinged with the rotating shaft 43, and the other end is hinged with the connecting rod 31. When the rotating shaft 43 rotates, the connecting rod 31 is driven to rotate through the rod body. The connecting unit 42 can also be a connecting rope 423 whose two ends are respectively connected to the rotating shaft 43 and the connecting rod 31. When the rotating shaft 43 rotates, the connecting rope 423 is wound around the rotating shaft 43, thereby driving the connecting rod 31 to rotate.

[0048] In one embodiment, Figure 1-3 As shown, the driving unit 41 includes a driving shaft 411 and a transmission assembly 412. The driving shaft 411 is rotatably connected to the carrier 20, and is used to rotate when the carrier 20 falls. The transmission assembly 412 is connected to the driving shaft 411 and the rotating shaft 43, and is used to drive the rotating shaft 43 to rotate through the rotation of the driving shaft 411. Specifically, through the above structure, when the carrier 20 falls, the driving shaft 411 rotates, and the rotating shaft 43 rotates under the transmission of the transmission assembly 412, and finally the linkage of each safety clamp 50 is realized.

[0049] In this embodiment, Figure 1 and 3As shown, both ends of the driving shaft 411 extend to the two columns 10 of the stacker respectively, and two groups of transmission components 412 and rotating shafts 43 are provided. The two groups of transmission components 412 and rotating shafts 43 are respectively installed at the two ends of the carrier frame 20. During the rotation of the driving shaft 411, the two groups of rotating shafts 43 are driven to rotate by the two groups of transmission components 412 respectively, thereby driving the safety clamps 50 at both ends of the carrier frame 20 to operate simultaneously, thereby realizing emergency braking of the carrier frame 20.

[0050] It is understandable that the transmission assembly 412 can be gears that mesh with each other, or a belt that is sleeved on the rotating shaft 43 and the driving shaft 411 .

[0051] In one embodiment, Figure 1-3 As shown, the transmission assembly 412 includes an intermediate shaft 4121, a first chain 4122 and a second chain 4123. The intermediate shaft 4121 is rotatably connected to the carrier 20, the first chain 4122 is sleeved on the driving shaft 411 and the intermediate shaft 4121, and the second chain 4123 is sleeved on the rotating shaft 43 and the intermediate shaft 4121. Specifically, when the driving shaft 411 rotates, the intermediate shaft 4121 is driven to rotate by the first chain 4122, and the intermediate shaft 4121 finally realizes the rotation of the rotating shaft 43 under the transmission of the second chain 4123.

[0052] In this embodiment, the driving shaft 411 , the intermediate shaft 4121 and the rotating shaft 43 are all provided with gears, and the first chain 4122 and the second chain 4123 are meshed with the gears of the driving shaft 411 , the intermediate shaft 4121 and the rotating shaft 43 .

[0053] In one embodiment, Figure 1-3 As shown, the connection unit 42 includes a cam member 421, a rope head 422 and a connecting rope 423. The cam member 421 is fixed to the rotating shaft 43, the rope head 422 is hinged to the linkage frame 30, and the two ends of the connecting rope 423 are respectively connected to the cam member 421 and the rope head 422. Specifically, when the rotating shaft 43 rotates, the cam member 421 is driven to rotate. When the cam member 421 rotates, the connecting rope 423 is pulled, so that the connecting rope 423 drives the linkage frame 30 to rotate through the rope head 422, thereby realizing the driving of each safety clamp 50.

[0054] In one embodiment, Figure 1-3As shown, the driving module 40 also includes a steel wire rope 44, a connector 45 and a locking member 46. The steel wire rope 44 is sleeved on both ends of the column 10 and can rotate around the column 10. The connector 45 is fixed to the steel wire rope 44. The locking member 46 is fixed to the column 10 and is used to lock the steel wire rope 44 when the carrier 20 falls. The driving shaft 411 is eccentrically arranged on the connecting member 45 and is hinged with the connecting member 45. Specifically, when the carrier 20 is normally lifted or lowered, the steel wire rope 44 can be driven to rotate by the connecting member 45. When the carrier 20 falls, the locking member 46 locks the steel wire rope 44 to prevent the steel wire rope 44 from rotating, so that the carrier 20 falls relative to the connecting member 45. Since the connecting member 45 and the driving shaft 411 are eccentrically arranged, the driving shaft 411 will be driven to rotate during the falling process of the carrier 20, thereby realizing the driving of each safety clamp 50.

[0055] In this embodiment, tension wheels 11 are provided at both ends of the column 10 , and the steel wire rope 44 is sleeved on the tension wheels 11 .

[0056] In this embodiment, the locking member 46 is electrically connected to a sensor of the stacker. When the sensor senses that the carrier 20 is accelerating downward, the locking member 46 is activated to lock the steel wire rope 44 .

[0057] In one embodiment, Figure 1-2 As shown, the end of the driving shaft 411 is provided with an articulation block 4111, the connecting member 45 is provided with an articulation cavity 451, and the end of the articulation block 4111 extends to the articulation cavity 451 and is articulated with the connecting member 45. Specifically, through the cooperation of the articulation block 4111 and the articulation cavity 451, the eccentric setting of the driving shaft 411 and the connecting member 45, and the stable articulation of the driving shaft 411 and the connecting member 45 can be achieved.

[0058] The embodiment of the utility model also provides a stacker, such as Figure 3 Specifically, the stacker also includes a column 10 and a carrier 20, the carrier 20 is slidably connected to the column 10, and the stacker is provided with the emergency brake device to provide emergency braking for the carrier 20 loaded with heavy goods, thereby improving the safety performance of the stacker.

[0059] The specific working principle of the emergency brake of the stacker according to the embodiment of the utility model is as follows: when the load rack of the stacker falls, the sensor senses that the load rack accelerates to fall, and the locking member 46 locks the wire rope 44, so that the load rack drives the driving shaft 411 to rotate through the connecting member 45. During the rotation of the driving shaft 411, the intermediate shaft 4121 is driven to rotate by the first chain 4122. The intermediate shaft 4121 realizes the rotation of the rotating shaft 43 under the transmission of the second chain 4123. When the rotating shaft 43 rotates, it drives the cam member 421 to rotate. The cam member 421 pulls the connecting rope 423, so that the connecting rope 423 drives the connecting rod 31 to rotate through the rope head 422, and the connecting rod 31 drives the connecting frame 32 to rise. During the rising process of the connecting frame 32, the safety clamps 50 are driven to work in conjunction, thereby realizing the emergency braking of the load frame 20 and preventing the load frame 20 from falling further. The emergency braking of the load frame 20 of heavy-loaded goods is realized through the linkage of the safety clamps 50, thereby improving the safety performance of the stacker.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An emergency brake device, used for installation on a stacker, the stacker comprises a column and a carrier, the carrier is slidably connected to the column along the height direction of the column, characterized in that: include: A linkage frame, hinged to one end of the bearing frame close to the column; A driving module, connected to the linkage frame, and used to drive the linkage frame to rotate when the supporting frame falls; and A plurality of safety clamps are fixed to the bearing frame and connected to the linkage frame, and are used for clamping the column through the rotation of the linkage frame.

2. The emergency brake device according to claim 1, characterized in that: The linkage frame comprises a connecting rod and a connecting frame, the connecting rod is hinged to the bearing frame, the connecting frame is hinged to the connecting rod, and each of the safety clamps is connected to the connecting frame.

3. The emergency brake device according to claim 2, characterized in that: The connecting frame comprises a hinged portion and a plurality of connecting portions, the hinged portion is hinged to the connecting rod, the connecting portions are spaced apart from each other and fixed to the hinged portion, and the safety clamps are respectively connected to the connecting portions.

4. The emergency brake device according to any one of claims 1 to 3, characterized in that: The driving module includes a driving unit, a connecting unit and a rotating shaft, wherein the rotating shaft is rotatably connected to the supporting frame, and the driving unit is connected to the rotating shaft and is used to drive the rotating shaft to rotate when the supporting frame falls. Both ends of the connecting unit are respectively connected to the rotating shaft and the linkage frame and are used to pull the linkage frame to rotate through the rotation of the rotating shaft.

5. The emergency brake device according to claim 4, characterized in that: The connecting unit comprises a cam member, a rope head and a connecting rope, wherein the cam member is fixed to the rotating shaft, the rope head is hinged to the linkage frame, and two ends of the connecting rope are respectively connected to the cam member and the rope head.

6. The emergency brake device according to claim 4, characterized in that: The driving unit includes a driving shaft and a transmission assembly. The driving shaft is rotatably connected to the supporting frame and is used to rotate when the supporting frame falls. The transmission assembly is connected to the driving shaft and the rotating shaft and is used to drive the rotating shaft to rotate through the rotation of the driving shaft.

7. The emergency brake device according to claim 6, characterized in that: The transmission assembly includes an intermediate shaft, a first chain and a second chain. The intermediate shaft is rotatably connected to the carrier frame. The first chain is sleeved on the drive shaft and the intermediate shaft. The second chain is sleeved on the rotating shaft and the intermediate shaft.

8. The emergency brake device according to claim 6, characterized in that: The driving module also includes a steel wire rope, a connecting piece and a locking piece. The steel wire rope is sleeved on both ends of the column and can rotate around the column. The connecting piece is fixed to the steel wire rope. The locking piece is fixed to the column and is used to lock the steel wire rope when the supporting frame falls. The driving shaft is eccentrically arranged on the connecting piece and is hinged to the connecting piece.

9. The emergency brake device according to claim 8, characterized in that: An articulation block is disposed at the end of the driving shaft, and an articulation cavity is disposed at the connecting member. An end of the articulation block extends to the articulation cavity and is articulated with the connecting member.

10. A stacker, characterized in that: The invention comprises the emergency braking device according to any one of claims 1 to 9.

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